JP6966748B2 - Anti-counterfeit medium with windows and how to make it - Google Patents

Description

The present invention relates to an anti-counterfeit medium having a window as a base material in the field of valuable printed matter such as banknotes, passports, securities, identification cards, and toll tickets that require an anti-counterfeiting effect.

Valuable printed matter such as banknotes, passports, securities, identification cards, and toll tickets are required not to be forged or tampered with due to their nature. Printing with target change ink is applied. Further, as an anti-counterfeiting technique for processing the paper base material itself, a draft, a thread, a mixed abstract of functional fibers and the like are used.

Further, as an anti-counterfeiting technique applied to the base material itself, a technique of providing a transparent window on the base material is used for banknotes of Australia, Canada and the like. In these banknotes, the transparent window configuration is such that the base material itself is composed of a transparent polymer material and the circumference of the window is shielded by printing, and its existence can be easily authenticated, so it is a true / false discrimination factor. It is used.

Further, as a technique of applying a transparent window to a base material, not only when the base material is a polymer material, an opening is provided in a part of the base material made of paper, and a film is provided so as to cover the opening. (For example, see Patent Document 1). In the technique of Patent Document 1, in the paper manufacturing process, an opening is provided by a special device and security elements are laminated so as to cover the opening. As the security element, a transparent film itself is used. In addition, it is disclosed to use a functional material such as a diffraction structure, a magnetic material, and a light emitting material. The technique of Patent Document 1 has an object of preventing forgery of a window formed by simply punching a conventional dry paper base material by a cutting means, and has a convex shape provided on a papermaking screen of a circular net paper machine. By processing with a sealing element, the fibers at the opening are characterized by forming an irregular window. Further, the technique of Patent Document 1 discloses that a watermark is provided around an opening and the pattern is associated with the pattern of the opening. In that case, when the pattern is observed under transmitted light, the synthesized pattern is obtained. It has the effect of being visible.

Further, in the technique of forming a window by covering the opening provided in the base material with a film, the opening portion provided in the base material is covered with a film laminated on the front and back of the base material, so that the base material due to humidity and temperature changes. A technique has been proposed in which the change with time is suppressed and the durability is improved (see, for example, Patent Document 2). The technique of Patent Document 2 discloses that a plurality of openings having different shapes are provided.

On the other hand, there has been proposed a technique in which a pseudo window is provided by reducing the thickness of the base material to increase the transparency without providing an opening in the base material as in Patent Document 1 (for example, See Patent Document 3). In the technique of Patent Document 3, since the strength is lowered in the region where the thickness of the base material is thinned, a transparent film for reinforcing the strength is laminated. The technique of Patent Document 3 discloses that an OVD patch surrounding a window area is provided on a film and laminated. According to this configuration, the OVD has an effect of preventing duplication and the OVD. The windows attract people's eyes, which also has the visual effect of high authentication.

Japanese Patent No. 4495460 Japanese Patent No. 461377 Special Table 2005-537962

However, although the opening formed in the technique of Patent Document 1 is performed by a special device in the paper manufacturing process, the paper manufacturing device itself is originally large-scale and is special for forming the opening. It is necessary to use various devices. Also, after forming the openings in the paper manufacturing process, another device for laminating the films, such as a heat press device, is required. That is, the window formed in Patent Document 1 has a problem that it takes time and effort to manufacture the window and the configuration of the apparatus is complicated. Further, the technique of Patent Document 1 is a technique in which a watermark is applied around an opening in a paper manufacturing process, but the watermark in the present technique is a technique of applying a watermark as a synthetic pattern, as in Patent Document 3. It did not improve the authenticity of the window.

Further, the opening formed in the technique of Patent Document 2 is performed by cutting, laser processing, or the like, and in this case, the base material punched out to form the opening needs to be treated as waste. Further, as in the technique of Patent Document 1, another device for laminating films after forming an opening, for example, a heat press device is required. That is, also in Patent Document 2, in order to form a window, a step of forming an opening and a step of laminating films are required, which is troublesome to manufacture and has a problem that the configuration of an apparatus is complicated. there were.

Further, in the technique of Patent Document 2, when a plurality of openings are formed, the strength of the base material is lowered, so that there is a risk of tearing during the transport process when manufacturing the window or when handling by human hands. There was sex. Further, if the width of the base material sandwiched by the openings is narrow, the same problem will occur. Therefore, there is a problem that the shape of the opening, that is, the window can be formed only as a simple shape such as a circle or a quadrangle.

Further, according to the technique of Patent Document 3 in which an OVD patch surrounding a window area is provided on a film and laminated, the effect that the OVD and the window attract people's eyes and the credibility is improved can be obtained. However, as in Patent Document 1 and Patent Document 2, two steps for forming a window, specifically, a processing step for reducing the thickness of paper and a step for laminating films are required. There is a problem that it takes time and effort to manufacture a window and the configuration of the device is complicated. Further, in the technique of Patent Document 3, when the OVD surrounding the window area is provided, it is necessary to perform a demetallization process for partially peeling off the metal layer constituting the OVD according to the window area, and the window ( There is a problem that the OVD must be laminated by aligning the position of the OVD with the region where the thickness of the base material is thinned).

The present invention is intended to solve the above-mentioned problems, and is an anti-counterfeiting medium obtained by forming a window having high authenticity and having no restriction on the shape without requiring a complicated process. A production method is provided.

The anti-counterfeit medium having a window of the present invention is provided with at least one opening in a substrate having fibers, and the opening is covered with a thermoplastic resin layer laminated on the front and back of the substrate. It is characterized in that a window is formed and a region with a high density of fibers is partially formed along at least a part of the outline of the window.

Further, the anti-counterfeit medium having the window of the present invention is characterized in that the opening is formed in a shape surrounding a part of the base material.

Further, in the anti-counterfeit medium having a window of the present invention, a contour portion having a contour element is formed along at least a part of the contour of the window, and the contour element is composed of a printing material and has a thickness with a surrounding base material. It is characterized in that it has either a different structure or a structure composed of a metal foil.

Further, in the anti-counterfeit medium having a window of the present invention, when the contour element is composed of a printing material, the contour element is formed by i) a printing material having a color different from that of the base material, or ii) the base material. It is characterized in that it is raised and formed by a printing material of the same color or a different color as the above, or formed by iii) watermark ink.

Further, in the anti-counterfeit medium having the window of the present invention, a metal foil is laminated between at least one surface of the base material in a region adjacent to at least a part of the contour of the window and the thermoplastic resin layer, and the base material and the base material. In the metal foil laminated between the thermoplastic resins, the region adjacent to the contour of the window is characterized by a large amount of metal material partially constituting the metal foil.

Further, in the method for producing an anti-counterfeit medium having a window of the present invention, a thermoplastic resin layer is laminated on the front and back of a base material having fibers, and a convex-shaped first is formed in a region where the thermoplastic resin layer is laminated. By performing ultrasonic processing using a mold having a region, in the base material corresponding to the first region of the convex shape, the fibers constituting the base material are moved to the periphery of the first region to bring the base material. It is characterized in that at least one opening through which a part of the substrate is penetrated is formed, and a window covering the opening is formed by a thermoplastic resin layer laminated on the front and back of the base material.

Further, in the method for producing an anti-counterfeit medium having a window of the present invention, the mold has a concave second region surrounded by a convex first region, and a region corresponding to the first region. By forming a window only on the window, it is characterized by forming a base material surrounded by the window.

Further, in the method for producing an anti-counterfeit medium having a window of the present invention, at least a part of a region corresponding to a window formed on the base material before laminating a thermoplastic resin layer on the front and back surfaces of the base material having fibers. It is characterized by performing a printing process or a forgery process along the contour.

Further, in the method for producing an anti-counterfeit medium having a window of the present invention, a metal foil is laminated between at least one surface of a base material having fibers and a thermoplastic resin layer, and ultrasonic processing is performed using a mold. By doing so, the metal foil corresponding to the first region of the convex shape is moved around the first region to form at least one opening through which a part of the metal foil penetrates, and the front and back surfaces of the base material are formed. It is characterized in that a window covering the opening is formed by a thermoplastic resin layer laminated on the surface.

The anti-counterfeit medium having a window of the present invention can produce a window having no shape restriction by forming an opening and a window by a single process by ultrasonic processing without requiring a complicated process. Further, by providing a region having a high density of fibers formed along the contour of the window, the authenticity of the window can be enhanced.

Further, the anti-counterfeit medium having a window having a base material surrounded by the opening can be used for authenticity discrimination by authenticating the base material surrounded by the opening, and the anti-counterfeiting effect can be enhanced. ..

It is a figure which shows the outline of the anti-counterfeiting medium of this invention. It is sectional drawing of the area where a window is formed in an anti-counterfeit medium. It is a figure which shows the outline of the ultrasonic processing machine. It is a figure which shows the structure of the mold for forming an opening. It is a flow figure of the manufacturing method of the anti-counterfeit medium of this invention. It is a figure which shows typically the state which the opening and the window are formed by ultrasonic processing. It is a figure which shows the structure that the thickness of the region where the density of a fiber is high is thicker than the surrounding base material. It is a figure which shows the structure of the anti-counterfeit medium provided with a plurality of windows. It is a figure which shows the example of the design of the opening formed in the base material. It is a figure which shows the structure of the window formed in the state that the opening surrounds a part of a base material. It is a figure which shows the structure of the mold for forming in the state that the opening surrounds a part of a base material. It is a figure which shows typically the state which the opening is formed in the state which surrounds a part of the base material by ultrasonic processing. It is a figure which shows the example of the opening which surrounds a part of a base material. It is a figure which shows another example of the opening which surrounds a part of a base material. It is a figure which shows the positional relationship between the base material and the surface of a thermoplastic resin layer. It is a figure which shows the contour part which formed the contour element for improving the visibility of a window. It is a figure which shows the example of the contour element which constitutes the contour part. It is a figure which shows the example which the contour part is composed of a plurality of contour elements. It is a figure which shows the structure of the contour part which consists of the contour element formed by printing. It is a figure which shows the example of the contour element formed by printing. It is a figure which shows the example which the contour element was formed by printing on the thermoplastic resin layer. It is a figure which shows the structure of the contour part which consists of the contour element formed by the abstraction. It is a figure which shows the example of the contour element formed by the abstraction. It is a figure which shows the structure in which the contour element made of a metal foil is laminated. It is sectional drawing of the area of the window formed in the anti-counterfeit medium of Example 1. FIG. It is a figure which shows the processing order at the time of making the anti-counterfeit medium of Example 4. It is a figure which shows the outline of the anti-counterfeiting medium of the 3rd Embodiment. It is sectional drawing of the area where the window of 3rd Embodiment is formed. It is a figure which shows the example of the metal foil in which the anti-counterfeit medium of the 3rd Embodiment is laminated. It is a figure which shows another example of the metal foil in which the anti-counterfeit medium of the 3rd Embodiment is laminated. It is a figure which shows the thermoplastic resin layer laminating process of 3rd Embodiment. It is a figure which shows the ultrasonic processing process of 3rd Embodiment. It is a figure which shows the structure of the anti-counterfeit medium in which a metal foil is laminated on the front and back of a base material. It is a figure which shows the structure of the 1st modification of the 3rd Embodiment. It is a figure which shows the structure of the 2nd modification of the 3rd Embodiment. It is a figure which shows the structure of the metal foil laminated in the 2nd modification of 3rd Embodiment. It is a figure which shows the ultrasonic processing process performed in the 2nd modification of 3rd Embodiment. It is a figure which shows the example which provided the base material surrounded by the opening in the 2nd modification of the 3rd Embodiment. In the second modification of the third embodiment, it is a figure which shows another example which provided the base material surrounded by the opening. It is a figure which shows the example of the anti-counterfeit medium formed by combining the structure of the window described in 3rd Embodiment.

A mode for carrying out the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments described below, and includes various other embodiments within the scope of the technical idea in the claims.

(First Embodiment)
FIG. 1 shows a plan view of an anti-counterfeit medium (1) (hereinafter referred to as “anti-counterfeit medium”) having a window according to the first embodiment of the present invention. As shown in FIG. 1, the anti-counterfeit medium (1) of the present invention includes an opening (11) and a window (10), and has an effect that the back side can be seen through the window (10). The first embodiment is a form in which a window (10) is formed by a base material (2) and a thermoplastic resin layer (12), and hereinafter, an anti-counterfeit medium according to the first embodiment of the present invention. The detailed configuration of (1) will be described. The shape of the window (10) will be described with an example of a "circular shape" shown in FIG.

(Base material)
In the present invention, the base material (2) is paper having fibers, and the type of fibers constituting the base material (2) is not particularly limited, and chemical pulps such as KP and SP made from various woods are not particularly limited. , GP, TMP, CTMP and other mechanical pulp, recycled paper recycled pulp and the like can be used. In addition, non-wood such as rice, abaca, cotton, kenaf, honey, and bamboo can also be used. Further, chemical fibers that do not melt due to heat generated during ultrasonic processing, which is a method for producing the anti-counterfeit medium (1) described later, such as rayon fiber and glass fiber, may be used. These fibers may be used alone or in combination. If necessary, chemicals such as sizing agents and paper strength enhancers, pigments, and additives that are generally used as paper materials may be blended. The color of the paper is not particularly limited to red, blue, yellow, green and the like, and may be white. Further, the surface of the paper having the above structure may be coated with a coating material for improving printability and surface gloss.

Further, in the present invention, when paper is used as the base material (2), the thickness and the basis weight of the paper are not particularly limited and can be used in a general range. The amount is about 20 to 30 g / m ² , and the thickness is about 30 to 50 μm. As an example of thick paper, the basis weight is 250 to 300 g / m ² , and the thickness is about 300 to 500 μm. From the viewpoint of handleability and durability of the anti-counterfeit medium (1), ^{it is preferable to use paper having a basis weight of 80 to 100 g / m 2} and a thickness of about 90 to 120 μm.

(Window configuration)
FIG. 2 is a cross-sectional view taken along the line AA'of FIG. In the anti-counterfeit medium (1) of the present invention, in the window (10), the opening (11) in which a part of the base material (2) penetrates and a hole is opened is the front and back of the base material (2). It is formed by being covered with a thermoplastic resin layer (12) laminated on the surface. The details of the ultrasonic processing for forming the window (10) in the present invention will be described later, but when the window (10) is formed by the ultrasonic processing, the fibers constituting the base material (2) are formed in the processed portion. An opening (11) is formed by being brought closer to the end of the mold by vibration caused by ultrasonic processing, and at the same time, a region (S) having a high fiber density is formed. Further, by adhering the thermoplastic resin layers (12) laminated on the front and back surfaces of the base material (2), the window (10) having the configuration shown in FIG. 2 is formed. Therefore, when the window (10) is formed by ultrasonic processing, paper containing fibers is used as the base material (2).

(Thermoplastic resin layer)
In the present invention, the thermoplastic resin layer (12) is made of a material made of a transparent or translucent thermoplastic resin, and the thermoplastic resin layer (12) is colored if the back side of the window (10) can be seen through. However, colorless and transparent ones are preferable because they have better visibility when viewed through the back side.

The specific structure of the thermoplastic resin layer (12) includes the form of a film, which is made of a thermoplastic resin such as nylon, polyvinyl chloride, polystyrene, polyethylene, polypropylene, polymethacrylic acid ester, polyvinyl alcohol, and polyvinyl acetal. A film can be used. Further, an interference film whose color changes under specularly reflected light may be used. Further, a multilayer film in which films of different materials are laminated may be used. When the films are laminated on the front and back of the base material (2), the films of the same material may be used, or the films of different materials may be used.

In the present invention, the thickness of the film used for the thermoplastic resin layer (12) is not particularly limited, and a film in a general range can be used, and a commercially available film has a thickness of 5 μm. There are those with a thickness of ~ 500 μm, which can be appropriately selected and used. However, from the viewpoint of handleability of the anti-counterfeit medium (1), it is preferable to use a film having a thickness of about 50 μm.

Further, as another configuration of the thermoplastic resin layer (12), a liquid material containing the above-mentioned thermoplastic resin may be applied to the base material (2) to form the layer. The liquid material containing the thermoplastic resin can be produced by dissolving a thermoplastic resin such as polypropylene, polycarbonate or polyethylene in a solvent such as an aromatic type, a cyclic ether type or an amide type. Even when a liquid material containing a thermoplastic resin is applied, the thickness is preferably about 50 μm from the viewpoint of handleability of the anti-counterfeit medium (1).

When a film is used as the thermoplastic resin layer (12), an adhesive layer for adhering to the base material (2) may be provided as needed, and the adhesive layer may be an acrylic resin, a urethane resin, or the like. Various synthetic resins such as polyester-based resin, epoxy-based resin, nylon-based resin, rubber-based resin, and vinyl acetate-based resin can be used.

(Ultrasonic processing machine, processing process)
FIG. 3 is a schematic view of an ultrasonic processing machine (30) for forming a window (10) provided in the anti-counterfeit medium (1) of the present invention. As shown in FIG. 3, the ultrasonic processing machine (30) is composed of a horn (31), an anvil (33), and a pedestal (34) for fixing the anvil (33). The horn (31) and the anvil (33) are made of metal, and a convex mold (32) corresponding to the shape of the opening (11), that is, the window (10) is provided on the anvil (33). Has been done. The ultrasonic processing machine (30) includes a stamp type for processing sheet paper and a sewing machine method for processing continuous paper, and any processing machine may be used.

FIG. 4 is a diagram showing the configuration of the mold (32) for forming the circular opening (11) shown in FIG. 1, and FIG. 4 (a) is a perspective view of the mold (32). FIG. 4 (b) is a cross-sectional view taken along the line BB'of FIG. 4 (a). As shown in FIGS. 4A and 4B, the mold (32) has a first region (32A) configured in a convex shape in order to form a circular window (10). The first region (32A) has a shape corresponding to the circular shape of the opening (11) as shown in FIG. 4A.

FIG. 5 is a flow chart of a method of forming a window (10) provided in the anti-counterfeit medium (1) of the present invention by ultrasonic processing, and FIG. 6 is an opening by processing by an ultrasonic processing machine (30). It is a figure which shows typically the state which (11) and the window (10) are formed. Hereinafter, a method of forming the window (10) provided in the anti-counterfeit medium (1) of the present invention will be described with reference to FIGS. 5 and 6.

(Thermoplastic resin layer laminating process)
First, in the thermoplastic resin layer laminating step (S1) shown in FIG. 5, the thermoplastic resin layer (12) is laminated on the front and back of the base material (2). As described above, the thermoplastic resin layer (12) may be laminated with a film, or may be laminated by applying a liquid material containing a thermoplastic resin. As the material of the thermoplastic resin layer (12), the lower the melting point of the heat generated by ultrasonic processing (about 200 ° C.), the more the thermoplastic resin layer (12) is deformed by the pressurization of the mold (32). As a result, the fibers become easier to move. Therefore, it is preferable to use a material made of polypropylene, polyethylene, or the like having a melting point lower than 200 ° C. because the fibers can be easily moved.

Next, in the ultrasonic processing step (S2) shown in FIG. 5, the thermoplastic resin layer (12) was laminated between the horn (31) and the anvil (33) as shown in FIG. 6 (a). The base material (2) is arranged and ultrasonic processing is performed. In the ultrasonic processing step (S2), the mold (32) shown in FIG. 4 is used to perform ultrasonic processing on the base material (2) on which the thermoplastic resin layer (12) is laminated, but the mold (32) is used. ), That is, the height (h) of the convex first region (32A) shown in FIG. 4 (b) is used to provide the opening (11) in the base material (2). A mold (32) having the same structure as the sum of the thicknesses of the thermoplastic resin layer (12) and the base material (2) on the side with which 32) comes into contact may be used. The height of the mold (32) may be larger than the sum of the thicknesses of the thermoplastic resin layer (12) and the base material (2) on the side with which the mold (32) contacts, but on the opposite side. In the thermoplastic resin layer (12), that is, in FIG. 6A, the pressure during ultrasonic processing described later is applied so that the thermoplastic resin layer (12) laminated on the upper side of the base material (2) does not penetrate. Need to be adjusted. Further, the height of the mold (32) may be smaller than the sum of the thicknesses of the thermoplastic resin layer (12) and the base material (2) on the side where the mold (32) comes into contact, but ultrasonic processing It is necessary to adjust the pressure during ultrasonic processing, which will be described later, in order to form the opening (11) and the window (10).

In the ultrasonic processing, as shown in FIG. 6 (b), the horn (31) is lowered to sandwich the base material (2) and perform ultrasonic processing. When ultrasonic processing is performed, as shown in the enlarged view of FIG. 6B, the base material (2) corresponding to the convex first region (32A), more specifically, the convex first region. In the base material (2) on the thermoplastic resin layer (12) in contact with (32A), the base material (2) is originally formed by ultrasonic vibration from the horn (31) and pressurization due to descent. As shown in FIG. 6 (c), the fibers that have been formed are moved outward along the contour of the convex first region (32A), so that the opening corresponding to the first region (32A) is formed. Along with the formation of (11), the thermoplastic resin layer (12) laminated on the front and back of the base material (2) in the region of the opening (11) is in a bonded state, and the window (10) is formed. Will be done. The arrow line shown in FIG. 6 (c) indicates the direction in which the fibers constituting the base material (2) are brought toward the contour of the opening (11).

As described above, the window (10) can be formed by setting the height of the mold (32) within a predetermined range, but in the ultrasonic processing step (S2), ultrasonic waves are required. Ultrasonic processing may be performed by adjusting the processing conditions of the processing machine (30). The specific processing conditions of the ultrasonic processing machine (30) are the amplitude and pressure of the ultrasonic vibration, and the amplitude of the ultrasonic vibration is the swing width (longitudinal vibration) of the tip of the horn. Further, the pressure is the pressure at which the horn (31) and the mold (32) press the base material (2).

According to the ultrasonic processing machine (W5080 stamp type manufactured by Nippon Avionics Co., Ltd.) used by the applicant, the amplitude can be adjusted in the range of 0.5 to 50 μm and the pressure is in the range of 0.001 MPa to 0.4 MPa. It can be adjusted with. The larger the value of these conditions, the easier it is for the fibers constituting the base material to move. Therefore, it may be adjusted as necessary. According to the ultrasonic processing machine (W5080 stamp type manufactured by Nippon Avionics Co., Ltd.), the time for performing ultrasonic processing can be adjusted, and may be adjusted as necessary. The range of adjustment described above is based on the ultrasonic processing machine (W5080 stamp type manufactured by Nippon Avionics Co., Ltd.), and the range of adjustment differs depending on the specifications of various ultrasonic processing machines. Since the principle of forming (10) is the same, processing may be performed by appropriately adjusting. By adjusting the processing conditions of these ultrasonic processing machines according to the conditions of the base material (2) and the thermoplastic resin layer (12), the fibers constituting the base material (2) can be separated into the first region ( The opening (11) corresponding to the first region (32A) can be formed by moving outward along the contour of the 32A), and the front and back surfaces of the base material (2) can be formed in the region of the opening (11). The thermoplastic resin layer (12) laminated on the surface is in a bonded state, and the window (10) can be formed.

A feature of the configuration of the window (10) formed by ultrasonic processing is that the fibers are attracted to the outside along the contour of the convex first region (32A), so that the opening shown in FIG. 6 (c) is exhibited. A region (S) having a high fiber density is formed along the contour of (11), and when the opening (11) is formed by laser processing, cutting, or the like as in the prior art, the opening is formed. Only the fibers existing in the portion (11) are punched out and removed, and the region (S) having a high fiber density as shown in FIG. 6 (c) is not formed. Further, unlike the processing method of the present invention, it is possible to form a region having a high density by embossing the paper base material, but in this case, since the fibers do not move as in the present invention, the paper base material is used. The amount of fiber per unit area of is the same. On the other hand, in the region (S) where the fiber density is high when the window (10) of the present invention is formed by ultrasonic processing, the amount of fibers is higher than that of the surrounding base material (2) due to the movement of the fibers. , The fiber density is high. In the case of the pattern shown in FIG. 1, the contour of the opening (11) is the circumferential portion of the “circular shape”.

Further, the thickness (H) of the region (S) having a high fiber density shown in FIG. 6 (c) is the surrounding base material (2) according to one form of forming the window (10) by ultrasonic processing. ) Is formed in the same state as the thickness. As described above, unlike the processing method of the present invention, it is possible to form a region having a high fiber density by embossing the paper base material, but in this case, it is compressed in the thickness direction of the paper base material. The thickness is thinner than the surrounding area. On the other hand, in the configuration of the window (10) formed by the ultrasonic processing of the present invention, as shown in FIG. 6 (c), although the fibers constituting the base material (2) are brought together, the density of the fibers is high. It is also a feature that the thickness of the base material (2) does not become thin.

The effect of the anti-counterfeiting medium (1) provided with the window (10) formed by ultrasonic processing is that the region (S) where the fibers are gathered by ultrasonic processing is the surrounding region, that is, ultrasonic processing is applied. Due to the partially high fiber density compared to the non-base material (2), the color of the paper is visually recognized darker when observed under reflected light, and darker when observed under transmitted light. The authenticity of (10) can be enhanced. It is preferable that the range (T) of the region (T) where the fibers are gathered by the ultrasonic processing shown in FIG. 6 (c) is formed to be 100 μm or more because the authentication property is enhanced as the contour of the window (10).

FIG. 7 is a diagram showing another configuration of the window (10) formed by ultrasonic processing, and is the thickness (H) of the region (S) where the fiber density is high with respect to the configuration shown in FIG. 6 (c). ) Is formed thicker than the thickness of the surrounding base material (2), and the thermoplastic resin layer (12) is also formed in a raised state according to the region (S) where the fiber density is high. As shown in FIG. 7, when the thermoplastic resin layer (12) is raised by the region (S) where the fiber density is high, the contour of the opening (11) is raised, so that the window is also three-dimensionally raised. It is preferable because the shape of (10) can be visually recognized. The thickness (H) of the region (S) where the fiber density is high is preferably 20 μm or more with respect to the base material (2) in order to obtain a three-dimensional visual effect, and is 50 μm in consideration of distribution suitability. It is preferably as follows.

As shown in FIG. 6 (c), is the thickness (H) of the region (S) having a high fiber density formed in the same state as the thickness of the surrounding base material (2), or is shown in FIG. As shown, whether the thickness (H) of the region (S) having a high fiber density is formed in a state of being thicker than the thickness of the surrounding base material (2) is determined by the mold (32) by ultrasonic processing. When the base material (2) is pressed, the thermoplastic resin layer (12) on the side where the surface of the mold (32) (the convex surface of the first region (32A)) comes into contact with the mold (32). ) Is pushed up to the surface of the base material (2) when the thermoplastic resin layer (12) on the side in contact with the mold (32) is pushed up to the surface of the base material (2), as shown in FIG. The thickness (H) of the high region (S) is formed to be thicker than the thickness of the surrounding base material (2). On the other hand, as shown in FIG. 6 (c), when the thermoplastic resin layer (12) on the side in contact with the mold (32) cannot be pushed up to the surface of the base material (2), the fiber density is high. The thickness (H) of the region (S) is formed in the same state as the thickness of the surrounding base material (2).

The effect of the method of producing the anti-counterfeit medium (1) provided with the window (10) formed by ultrasonic processing is that there is no step of punching the base material (2) to form an opening as in Patent Document 2. Since the opening (11) and the window (10) can be formed by one processing by ultrasonic processing, it is a point that it can be easily manufactured. Further, unlike Patent Document 2, since there is no waste due to forming an opening by cutting, it is not necessary to provide equipment for waste treatment. Further, in the technique of Patent Document 2, when a plurality of openings are provided, the strength of the base material is weakened and the base material is easily torn. Therefore, it is necessary to pay attention to the handling of the base material until the film is laminated. According to the method for producing the anti-counterfeit medium (1) of the present invention, the opening (11) and the window (10) are formed by one processing, so that there is a problem of handleability of the base material (2). No.

(Shape of opening)
In the present invention, as shown in FIG. 1, the number of openings (11) formed in the base material (2), that is, the number of windows (10) may be only one, as shown in FIG. In addition, a plurality of them may be provided. Further, in the first embodiment of the present invention, the shape of the opening (11) is not limited to the "circular shape", but is "star-shaped" as shown in FIG. 9A, FIG. 9 ( It may be a "number" as shown in b), a "character" as shown in FIG. 9 (c), or the like. Further, as shown in FIGS. 9 (a) to 9 (c), unlike the configuration in which the pattern is formed by the opening (11), the opening (11) is formed as shown in FIG. 9 (d). The design may be formed by the base material (2) remaining by the provision, and in FIG. 9 (d), the background of the characters "JAPAN" is set as the opening (11), and the remaining base material (2) is used. , Shows an example of forming the characters "JAPAN".

Subsequently, a modified example of the shape of the opening (11), that is, the window (10) will be described. 10 (a) is a plan view showing a modification of the shape of the opening (11), and FIG. 10 (a) shows the opening (11) having a shape surrounding a part of the base material (2). It is characterized by being formed. In the following description, the base material surrounded by the opening (11) will be described as the reference numeral "2'". The shape of the opening (11) is not particularly limited, but here, as shown in FIG. 10, the shape is composed of a "doughnut shape" and a part of the base material (2) is surrounded by a "circle". An example of the above will be described.

10 (b) is a cross-sectional view taken along the line AA'of FIG. 10 (a). In the configuration shown in FIG. 10 (a), in the window (10), the opening (11) in which a part of the base material (2) penetrates and has a hole is covered with the thermoplastic resin layer (12). It is formed by being plasticized. Further, in the plan view of FIG. 10A, the base material (2') surrounded by the opening (11) is surrounded by the thermoplastic resin layer (12) in the cross-sectional view of FIG. 10B. It has become.

11 is a diagram showing the configuration of the mold (32) for forming the donut-shaped opening (11) shown in FIG. 10, and FIG. 11 (a) is a perspective view of the mold (32). 11 (b) is a cross-sectional view taken along the line BB'of FIG. 11 (a). As shown in FIGS. 11 (a) and 11 (b), the mold has a first region (32A) configured in a convex shape and a donut in order to form a donut-shaped opening (11). It consists of a second region (32B) configured in a concave shape to form a circular substrate (2') surrounded by a shape. As shown in FIG. 11A, the convex first region (32A) has a shape corresponding to the donut shape of the opening (11), and the concave second region (32B) has a concave shape. , The shape corresponding to the circle surrounded by the opening (11). Since the circular substrate (2') is surrounded by the donut-shaped opening (11), the concave second region (32B) in the mold (32) is the convex first region (32A). ) Surrounded by.

Further, in the mold (32) used for the ultrasonic processing machine (30), in order to provide the opening (11) in the base material (2), the convex first region (32A) shown in FIG. 11 (b) is provided. ) And the concave second region (32B) have the same height difference as the sum of the thicknesses of the thermoplastic resin layer (12) and the base material (2) on the side where the mold (32) contacts. Should be used. As described above, the height difference between the convex first region (32A) and the concave second region (32B) is the thermoplastic resin layer (12) on the side where the mold (32) comes into contact. Even if it is different from the sum of the thicknesses of the substrate (2) and the substrate (2), the opening (11) and the window (10) can be formed by adjusting the pressure during ultrasonic processing.

FIG. 12 is a diagram schematically showing a state in which an opening (11) and a window (10) are formed by ultrasonic processing using the mold (32) shown in FIG. When ultrasonic processing is performed, as shown in the enlarged view of FIG. 12A, the base material (2) corresponding to the convex first region (32A), more specifically, the convex first region. In the base material (2) on the thermoplastic resin layer (12) in contact with (32A), the base material (2) is originally formed by ultrasonic vibration from the horn (31) and pressurization due to descent. By moving the fibers to the outside along the contour of the first region (32A), an opening (11) corresponding to the first region (32A) is formed and the opening (11) is formed. ), The thermoplastic resin layer (12) laminated on the front and back of the base material (2) is in a bonded state in the same manner as in the case of thermocompression bonding, and the window (10) is formed. Further, a base material (2) corresponding to the concave second region (32B), specifically, a base material on the thermoplastic resin layer (12) in contact with the concave second region (32B). In (2), since the ultrasonic processing is not performed, the state remains as it is, and as shown in FIG. 12 (b), the base material (2') sandwiched by the openings (11) is formed. .. Further, the thermoplastic resin layer (12) in contact with the mold (32) is processed along the unevenness of the mold (32) shown in FIG. 11 (b), as shown in FIG. 12 (b). It is processed into a state that surrounds a plastic base material (2').

The outside of the convex first region (32A) is, as shown in the enlarged view of FIG. 12A, specifically, with respect to the outer diameter of the convex first region (32A). Is on the outside and inside with respect to the inner diameter. Therefore, when the donut-shaped opening (11) is formed, as shown in FIG. 10A, a region having a high fiber density (a region having a high fiber density is formed in the contour portion of the outer diameter of the donut shape and the contour portion of the inner diameter. S) is formed. As described above, even in the base material (2') surrounded by the opening (11), when the range (T) of the region where the fibers are gathered by ultrasonic processing is formed by 100 μm or more, the window (10) is formed. It is preferable because it enhances the authenticity as a contour.

Further, even in the base material (2') surrounded by the opening (11), the thickness (H) of the region (S) having a high fiber density is thicker than the thickness of the surrounding base material (2). Then, when the thermoplastic resin layer (12) is raised, the shape of the window (10) can be visually recognized three-dimensionally, which is preferable. Even in the base material (2') surrounded by the opening (11), the thickness (H) of the region (S) where the fiber density is high is the base material (H) in order to obtain a three-dimensional visual effect. It is preferably 20 μm or more thicker than 2), and is preferably 50 μm or less in consideration of distribution suitability.

In the above description, an example in which the shape of the opening (11) is composed of a “doughnut shape” and a part of the base material (2) is surrounded by a “circle” has been described. The shape of the enclosed base material (2') is not limited to the "circular shape", but is "star-shaped" as shown in FIG. 13 (a) and "number" as shown in FIG. 13 (b). , Or other characters, symbols, figures, etc. Further, as shown in FIG. 13 (c), the outer shape of the opening (11) and the base material (2') surrounded by the opening (11) may be formed in a similar shape relationship. Further, as shown in FIG. 13 (d), one character may be composed of the opening (11) and the base material (2') surrounded by the opening (11). Further, as shown in FIG. 13 (e), two base materials (2') surrounded by the opening (11) may be provided, or more base materials (2') may be provided (FIG. 13). Not shown). Further, as shown in FIG. 13 (f), an opening may be further provided inside the base material (2') (letter "P") surrounded by the opening (11).

Further, as shown in FIG. 14 (a), an image having a difference in shade may be formed in the same manner as the principle of the halftone dot printed matter. In this case, as shown in the enlarged view of FIG. 14 (a), the image may be formed. The shade of the image can be expressed by the area ratio of the base material (2') surrounded by the opening (11). Further, as shown in FIG. 14 (b), a colored pattern may be formed.

Further, a white watermark, a black watermark, or a watermark obtained by combining them may be formed on the base material (2') surrounded by the opening (11) by a punching process. Further, a pattern may be formed by printing on the base material (2') surrounded by the opening (11).

(effect)
In addition to being able to determine the authenticity of the anti-counterfeit medium (1) having the configuration of the opening (11), that is, the modified example of the shape of the window (10), by authenticating the window (10). The authenticity can also be determined by authenticating the base material (2') surrounded by the opening (11) or the pattern thereof. Further, even in the anti-counterfeit medium (1) provided with the configuration of the modified example of the shape of the window (10), the opening (11) and the window (10) can be manufactured by one step by ultrasonic processing. Excellent manufacturability.

Further, the anti-counterfeit medium (1) having the configuration of the modification of the shape of the opening (11), that is, the window (10) is the base material (2) surrounded by the opening (11), that is, the window (10). ') Is provided, which has the effect of making counterfeiting more difficult. This is because the base material (2') cut out from the base material (2) requires accuracy when placed at the position surrounded by the window (10), and the shape of the base material (2') is complicated. As shown in FIGS. 14 (a) and 14 (b), for example, a plurality of base materials (2') surrounded by openings (11) are provided, and the base materials (2') are arranged. The difficulty of counterfeiting can be improved by using a configuration that requires a high degree of accuracy.

Further, in the anti-counterfeit medium (1) described above, there is a difference in unevenness between the portion where the thermoplastic resin layer (12) is laminated and the base material (2) (FIGS. 2 and 7). In consideration of durability at times, the surface of the thermoplastic resin layer (12) has the same structure as the surface of the base material (2) as shown in FIG. 15 (a), or as shown in FIG. 15 (b). , It may be configured to be laminated at a position lower than the surface of the base material (2). In this case, depending on the thickness of the thermoplastic resin layer (12), a recess may be formed in advance in the base material (2), and then the thermoplastic resin layer (12) may be laminated. As a means for forming the concave portion, a method of cutting the base material (2) by laser processing or a cutting process described later can be used.

(Second embodiment)
The second embodiment is the contour portion (20) in which the contour element (21) for improving the visibility of the window (10) is formed in the anti-counterfeit medium (1) described in the first embodiment. ). Since other configurations are the same as those of the first embodiment, the description thereof will be omitted. Also in the second embodiment, the shape of the opening (11) is not particularly limited as described above, but as an example, a configuration in which the shape of the opening (11) is “circular” will be described.

(Outline part)
FIG. 16 is an enlarged view showing a region in which a window (10) is formed in the anti-counterfeit medium (1) of the second embodiment. In the present invention, the contour portion (20) is formed along at least a part of the contour of the opening (11), that is, the window (10), and the contour element (21) is formed in the contour portion (20). Become. FIG. 16 shows a state in which a contour element (21) composed of linear strokes is formed along the entire contour of a “circular” shape of the opening (11).

FIG. 17 is a diagram showing another configuration of the contour element (21) formed in the contour portion (20) in the anti-counterfeit medium (1) of the second embodiment, and FIG. 17 (a) is a diagram showing another configuration. An example in which a contour element (21) composed of broken lines is formed, and FIG. 17 (b) is an example in which a contour element (21) composed of dotted lines is formed. , FIG. 17 (c) is an example in which a contour element (21) composed of wavy lines is formed. As shown in FIGS. 17 (a) to 17 (c), if the contour portion (20) is formed along the contour of the window (10), the image lines constituting the contour portion (20) of the present invention. There is no limit to.

FIG. 18 is a diagram showing a configuration different from the contour portion (20) shown in FIG. 16, and is an enlarged view of a part of the contour portion (20). The contour portion (20) shown in FIG. 18 (a) is an example in which a plurality of point-shaped contour elements (21) are formed, and the contour portion (20) shown in FIG. This is an example in which a plurality of contour elements (21) are formed. Explaining this by replacing it with a printing technique, the contour element (21) shown in FIG. 16 is a state in which the base material (2) is completely filled with ink, that is, a so-called solid printing state, and is shown in FIG. 18 (a). ) And FIG. 18 (b) are configured to express the same pattern by arranging a plurality of fine halftone dots or image lines in the same area. Therefore, as shown in FIGS. 18A and 18B, even when the contour portion (20) is formed by the plurality of contour elements (21), it is the same as the contour portion (20) shown in FIG. As can be visually recognized, the configurations shown in FIGS. 18 (a) and 18 (b) may be formed as the contour portion (20).

In the second embodiment, there are three forms of the contour element (21), and detailed configurations of each will be described in order.

(Outline part by printing)
The configuration of the first contour portion (20) is a form composed of the contour element (21) formed by the printing material. As a diagram showing the configuration, in FIG. 19, a contour element (21) printed with an ink of a color different from that of the base material (2) is formed on the base material (2), and a thermoplastic resin layer (1) is formed on the contour element (21). 12) shows the state of being covered. In this case, the contour portion (20) of the window (10) is emphasized depending on the color of the ink to be printed, and the effect of improving visibility can be obtained. In FIG. 19, although the contour element (21) is provided on one surface of the base material (2), it may be formed on the other surface of the base material (2) (not shown). It may be formed on both sides of the material (2).

The ink used for printing the contour element (21) is not particularly limited, and process ink, spot color ink, optical change ink, fluorescent ink and the like can be used. Further, a watermark ink having a watermark effect under transmitted light or a light blocking ink containing a metal pigment and having an effect of blocking light may be used.

Further, the contour element (21) may be partially different in color in the contour portion (20) without being formed in a single color. As a specific example thereof, as shown in FIGS. 20 (a) and 20 (b), the two colors may be formed in partially different colors, and the reference numerals of FIGS. 20 (a) and 20 (b) may be used. 21a) and reference numeral (21b) show examples of contour elements formed by inks of different colors. Further, as shown in FIG. 20 (c), the area ratio of the printing halftone dots may be partially different to form a gradation, or ink of three or more colors may be printed (not shown). , These configurations may be combined. These configurations can be easily manufactured by printing technology. When the contour portion is formed by OVD as in Patent Document 3 described above, only a gray color can be expressed in a state where there is no optical change due to OVD, but according to the configuration shown in FIG. 20 of the present invention. By expressing various colors in the contour portion (20), the authenticity of the window (10) can be improved.

(Processing method of contour by printing)
When the contour element (21) is formed on the base material (2) by printing in the stacking order shown in FIG. 19, it is necessary to form the contour element (21) before performing ultrasonic processing. In addition, in order to allow the processing of the opening portion (11), the area inside the contour portion (20) may also be printed. This is because the fibers constituting the base material (2) are moved to the outside of the mold (32) at the same time as the ultrasonic processing is performed.

As a means for printing the contour element (21), offset, flexo, gravure, screen, intaglio printing, inkjet printing machine and the like can be used, and in particular, the film thickness of the ink is obtained by gravure, screen, intaglio printing and inkjet printing. According to the printing method capable of increasing the height, not only the expression of the contour portion (20) can be emphasized by the color difference, but also it is emphasized three-dimensionally and can be visually recognized. Is. In this case, the ink film thickness is preferably 20 μm or more. Further, considering the appropriateness of distribution, it is preferably 50 μm or less. In this way, when the contour element (21) with the ink fill is formed, the contour portion (20) is three-dimensionally emphasized and can be visually recognized even when the ink of the same color as the base material (2) is used. Therefore, the configuration may be formed as the contour element (21) of the present invention.

In the anti-counterfeit medium (1) shown in FIG. 19, the contour element (21) formed by printing is an example formed on the base material (2), but in the present invention, the contour element formed by printing. (21) may be formed on the thermoplastic resin layer (12) as shown in FIG. The contour element (21) formed by printing may be formed on the thermoplastic resin layers (12) on the front and back sides of the base material (2) (not shown).

In the second embodiment described above, when the contour element (21) is formed by printing, the printing step is required, but the processing itself of the opening (11) and the window (10) is the first implementation. Since it can be performed in the same one process as in the above form, it is excellent in manufacturability.

(Outline part with different transparency)
The configuration of the second contour portion (20) is a form utilizing the so-called watermark principle, in which the transparency changes depending on the thickness of the base material (2). As a diagram showing the configuration, FIG. 22A shows a white watermark that is brightly visible under transmitted light by partially making the thickness thinner than that of the base material (2) around the contour portion (20). It shows a state in which the contour element (21) having the effect of is formed. In this case, when observing under transmitted light, the contour portion (20) is brightly emphasized, and the effect of improving the visibility of the window (10) can be obtained. Further, FIG. 22 (b) shows a contour having the effect of a black watermark that is visually recognized dark under transmitted light by making the thickness partially thicker than that of the base material (2) around the contour portion (20). It shows the state in which the element (21) is formed. In this case, when observing under transmitted light, the contour portion (20) is darkly emphasized, and the effect of improving the visibility of the window (10) can be obtained. In addition, as shown in FIG. 22 (a), when the thickness is partially made thinner than the base material (2) around the contour portion (20), and as shown in FIG. 22 (b), the contour portion ( When the thickness is partially thicker than that of the base material (2) around 20), it is preferable to provide a thickness difference of 20 μm or more because it is sterically emphasized and can be visually recognized. ) Is preferably 50 μm or less in consideration of distribution suitability.

When the base material (2) is paper, the thickness of the base material (2) is reduced by blending the basis weight, pigments, dyes and additives even when the paper itself is not transparent. Therefore, if there is a difference in transparency, it may be used as the contour element (21). Further, if it is a transparent paper, it can be used as a base material (2) for forming a contour element (21) having a partially different transparency.

(Processing method for contours with different transparency)
As a method for forming the contour element (21), the base material (2) made of paper can be formed by a circular net, a dandy roll, or a press roll, which is a known papermaking technique. In this case, it is necessary to process the base material (2) in advance in the papermaking process to form the contour element (21) before performing the ultrasonic processing. Further, before the ultrasonic processing, a part of the base material (2) may be removed by laser processing to form a contour element (21) having a different thickness to form a contour element (21) having a different transparency. Further, before the ultrasonic processing, a part of the base material (2) may be thinned by embossing to form a contour element (21) having different permeability. In addition, when performing the shaving process, only the range of the contour portion (20) may be squeezed, and in order to allow the processing of the opening portion (11), the contour portion (20) is used. It is also good to process the inner area.

The contour element (21) formed by partially differentiating the thickness of the base material (2) is not limited to the configuration having only the effects of the white watermark and the black watermark, and is based on the contour portion (20). The thickness of the material (2) may be partially different. As a specific example thereof, as shown in FIG. 23 (a), a contour portion (20) having both white watermark and black watermark effects may be formed, and in FIG. 23 (a), a circular window may be formed. A contour portion (21A) in which a contour element (21A) having a white watermark effect on the upper contour and a contour element (21B) having a black watermark effect on the lower contour are formed with respect to (10). An example of 20) is shown. Further, in FIG. 23B, a contour element (21A) having a white watermark effect and a contour element (21B) having a black watermark effect are formed in order around the circular window (10). An example of the contour portion (20) is shown. Further, in FIG. 23 (c), by forming the contour element (21) in which the thickness of the base material (2) is continuously different from the white watermark to the black watermark, the shade is continuously changed and visually recognized. An example of the contour portion (20) to be formed is shown. The example of the contour element (21) formed by the shaving process is not limited to the example shown in FIG. 23, and the configurations shown in FIG. 23 may be combined, and a pattern that can be processed by the shaving process, for example, It is not particularly limited to a broken line, a dotted line, a wavy line, a colored pattern, and the like. When the contour portion is formed by OVD as in Patent Document 3 described above, when observed under transmitted light, the light is blocked by OVD and only darkly visible. However, it is shown in FIG. 23 of the present invention. According to the configuration, the authenticity of the window (10) can be improved by expressing various shades in the contour portion (20).

In the second embodiment described above, when the contour element (21) is formed by the writing process, the opening (11) and the window (10) are processed, although the process of the drawing process is required. Since it can be carried out in the same one step as that of the first embodiment, it is excellent in manufacturability.

(Outline part by foil)
The configuration of the third contour portion (20) is a form in which the contour element (21) is configured by the metal foil, as in Cited Document 3. As a diagram showing the structure, FIG. 24A shows a state in which a metal foil (P) is formed on a base material (2) and a thermoplastic resin layer (12) covers the metal foil (P). There is. As described above, since the contour element (21) is formed along the contour of the opening (11), the metal foil (P) is formed along the contour of the opening (11). ) Is surrounded by a shape.

The metal foil (P) has a structure made of a metal material such as gold, silver, and aluminum. In this case, the metal foil (P) is punched out according to the shape of the opening (11) to form a base material (2). It may be laminated on top via an adhesive layer (not shown). The anti-counterfeit medium (1) having the configuration shown in FIG. 24 (a) is based on the metal foil (P) and the thermoplastic resin layer (12) before forming the opening (11) by ultrasonic processing. The window (10) is manufactured by laminating it on the material (2) and performing ultrasonic processing. Further, as shown in FIG. 24 (b), a metal foil (P) may be laminated on the thermoplastic resin layer (12) via an adhesive layer (not shown), in which case ultrasonic waves may be used. After processing, the metal foil (P) may be laminated, or the thermoplastic resin layer (12) and the metal foil (P) may be laminated on the base material (2) and then ultrasonically processed. ..

Further, as another example of forming the contour element (21) by the metal foil (P), an OVD in which the metal foil (P) and the film are integrated and the metal foil (P) is provided with a diffraction grating may be used. .. In this case, the OVD uses the film constituting the thermoplastic resin layer (12) in the present invention as a supporting base material, and a film in which a layer made of a metal material is vapor-deposited via an embossed layer is used as an opening (opening). The window (10) of the present invention is formed by demetallizing according to the contour of 11) to form a contour element (21), laminating it according to the base material (2), and performing ultrasonic processing. Can be formed. As described above, when the contour element (21) is formed by the metal foil (P), the authenticity of the window (10) is due to the optical change in gloss and color under reflected light and the visual effect by OVD. Can be enhanced.

FIG. 24 shows an example in which the metal foil (P) is provided on only one surface of the base material (2), but the metal foil (P) is laminated on both sides of the base material (2) to form a contour element (contour element (P). 21) may be formed (not shown).

In the second embodiment described above, when the contour element (21) is formed by the metal foil (P), the metal foil (P) is required, but the opening (11) and the window (10) are processed. Since it can be carried out in the same one step as that of the first embodiment, it is excellent in manufacturability.

(Third embodiment)
In the third embodiment, the metal foil (P) is laminated between the base material (2) and the thermoplastic resin layer (12) in the anti-counterfeit medium (1) described in the first embodiment. It is an anti-counterfeit medium (1) in which a window (10) is formed by ultrasonic processing in the state. 27 is a plan view showing an example of the anti-counterfeit medium (1) according to the third embodiment, and FIG. 28 is a cross-sectional view taken along the line AA'of FIG. 27.

As shown in the cross-sectional view of FIG. 28, in the anti-counterfeit medium (1) of the third embodiment, the amount of the metal material constituting the metal foil (P) is formed in the region along the contour of the window (10). A region with many ( _SP ) is formed. This is because the metal foil (P) is brought to the end of the mold together with the fibers constituting the base material (2) due to the vibration caused by ultrasonic processing, and the region along the contour of the window (10) is made of metal. The amount of the metal material constituting the foil (P) increases, and a part of the metal foil (P) becomes raised.

_{As described above, in the anti-counterfeit medium (1) of the third embodiment, a region (SP} ) having a large amount of metal material constituting the metal foil (P) is formed along the contour of the window (10). 27 shows a state formed along the contour of the "circular" window (10). The range in which region the amount is large in the metallic material constituting the region density of fibers formed by ultrasonic machining is high (S) and metal foil (P) (S _P) overlap, using a substrate (2), Although it depends on the metal foil (P) and the ultrasonic processing conditions, it may be the same, may be different, or may be partially overlapped.

Also in the third embodiment, the foil (P) is formed along the contour of the window (10) as in the case where the contour element (21) is formed by the foil (P) described in the second embodiment. Although it is in the arranged state, the third embodiment is different in that a _{region (SP) having a large amount of metal material constituting the metal foil (P) is formed.}

Further, in the second embodiment, the metal foil (P) constituting the contour element (21) is only arranged along the shape of the window (10) as shown in FIGS. 16 and 17. , The shape of the metal foil (P) of the third embodiment can be provided regardless of the shape of the window (10). As a specific example, the metal foil (P) shown in FIG. 27 is an example in which the shape of the window (10) is "circular", whereas the shape of the window (P) is "square". Further, FIG. 29A is an example in which the shape of the window (10) is “circular”, whereas the metal foil (P) is “triangular”. Further, FIG. 29 (b) is an example in which the metal foil (P) is "hexagonal" while the shape of the window (10) is "circular". Further, in FIG. 29 (c), the metal foil (P) is a “rectangle” while the window shape is “circular”, and the short side of the base material (2) shown in FIG. 29 (c). This is an example provided over the direction. In the third embodiment of the present invention, the shape of the metal foil (P) is not limited to the shape shown in FIG. 29, and may be other figures, characters, symbols, or the like.

Further, in the third embodiment, the metal foil (P) may be arranged along the contours of the plurality of windows (10). As an example, FIG. 30A shows a portion in which a "square" metal foil (P) is arranged in a "circular" window and a "triangular" metal foil (P) in a "circular" window. This is an example in which a portion in which is arranged is provided. Further, FIG. 30B is an example in which one metal foil (P) is arranged along the contours of the two windows (10).

Also in the third embodiment, an OVD in which a metal foil (P) is provided with a diffraction grating may be used. In this case, the OVD may be a film in which the film constituting the thermoplastic resin layer (12) in the present invention is used as a supporting base material, and a layer made of a metal material is vapor-deposited on the film via an embossed layer.

In the anti-counterfeit medium (1) shown in FIGS. 27 to 30, the metal foil (P) and the thermoplastic resin layer (12) have the same shape, and the metal layer (P) is covered with the thermoplastic resin layer (12). However, the shapes of the metal layer (P) and the thermoplastic resin layer (12) may be different. Specifically, there may be a region where the metal layer (P) is not covered by the thermoplastic resin layer (12), and the thermoplastic resin layer (12) is transferred from the metal layer (P) to the base material (12). It may be configured to cover over 2).

(How to form a window)
Subsequently, a method of forming the window (10) provided in the anti-counterfeit medium (1) of the third embodiment will be described. In addition, it will be described based on the method of forming the window (10) described in the first embodiment.

When forming the window (10) of the third embodiment, in the thermoplastic resin layer laminating step (S1), as shown in FIG. 31, the metal foil (P) is formed on one surface of the base material (2). The thermoplastic resin layer (12) is laminated so as to sandwich them. As described above, the thermoplastic resin layer (12) may be laminated with a film, or may be laminated by applying a liquid material containing a thermoplastic resin. Further, as in the case of OVD, if the metal foil (P) and the thermoplastic resin layer (12) are integrated in advance, they may be laminated as they are on the base material (2).

In the ultrasonic processing step (S2), the base material (2) on which the thermoplastic resin layer (12) is laminated is arranged between the horn (31) and the anvil (33), and ultrasonic processing is performed. At this time, the height (h) of the mold shown in FIG. 4 is the thermoplastic resin layer (12) on the side with which the mold (32) comes into contact in order to provide the opening (11) in the base material (2). , The mold (32) having the same configuration as the sum of the thicknesses of the base material (2) and the metal foil (P) may be used. Even if the height of the mold (32) is larger than the sum of the thicknesses of the thermoplastic resin layer (12), the base material (2), and the metal foil (P) on the side with which the mold (32) comes into contact. However, it is necessary to adjust the pressure during ultrasonic processing so that the thermoplastic resin layer (12) laminated on the upper side of the base material (2) does not penetrate. Further, even if the height of the mold (32) is smaller than the sum of the thicknesses of the thermoplastic resin layer (12), the base material (2), and the metal foil (P) on the side with which the mold (32) comes into contact. It is good, but in order to form the opening (11) and the window (10) by ultrasonic processing, it is necessary to adjust the pressure during ultrasonic processing.

In the ultrasonic processing step (S2), as shown in FIG. 32 (a), when the horn (31) is lowered and ultrasonic processing is performed, the fibers constituting the base material (2) as described above. Is moved outward along the contour of the convex first region (32A) to form a region (S) with a high fiber density. Further, as shown in FIG. 32 (b), when further pressed, the metal foil (P) is also moved outward along the contour of the convex first region (32A), so that the metal foil (P) is also moved outward. ) with the opening (11) is formed corresponding to the amount of the metal material constituting the many areas (S _P) and the first region (32A), the substrate in the region of the opening (11) (2) The thermoplastic resin layer (12) laminated on the front and back surfaces of the above is in a bonded state, and a window (10) is formed. In the ultrasonic processing step (S2), the convex mold (32) is opposed to the stacking order of the base material (2), the metal foil (P) and the thermoplastic resin layer (12) shown in FIG. 32. Ultrasonic processing may be performed with the metal foil (P) arranged on the side in contact with the metal foil (P).

The anti-counterfeit medium (1) of the third embodiment formed as described above is the metal constituting the metal foil (P) formed along the window (10) among the metal foils (P). _{The area (SP} ) having a large amount of material has the effect of improving the visibility of the window (10). Further, the authentication property of the window (10) can be enhanced by the optical change due to the metal foil (P) and the visual effect due to the OVD. Further, when the metal foil (P) corresponding to the shape of the window (10) shown in FIG. 27 is provided by a method different from the present invention, the metal foil (P) is provided corresponding to the region of the window (10). It is necessary to align the punched portion with the region of the window (10) and stack it. However, according to the method for forming the window (10) according to the third embodiment of the present invention, once by ultrasonic processing. By processing, the opening (11) and the window (10) can be formed. Further, unlike Patent Document 3, it is not necessary to perform a demetallization process for peeling off the metal foil (P) in the region corresponding to the window (10), and the OVD adjacent to the window (10) can be easily manufactured. can.

A configuration in which the metal foil (P) is laminated on one surface of the base material (2) has been described with respect to the third embodiment, but as shown in FIG. 33 (a), both surfaces of the base material (2) are covered. The metal foils (P) may be laminated, and the thermoplastic resin layer (12) may be laminated so as to sandwich them. When the base material (2) shown in FIG. 33 (a) is ultrasonically processed, as shown in FIG. 33 (b), metal foils (2) are formed on the front and back surfaces of the base material (2) along the contour of the window (10). The anti-counterfeit medium (1) on which P) is laminated can be formed. When the base material (2) shown in FIG. 33 (a) is ultrasonically processed, as shown in FIG. 33 (b), the metal material constituting the metal foil (P) is formed on the side surface of the base material (2). It will be in the placed state. This is because the metal foil (P) on the side in contact with the mold (32) is bent by being pressurized by ultrasonic processing. Further, due to vibration caused by ultrasonic processing, in the upper metal foil (P) shown in FIG. 33 (b), the amount of the metal material constituting the metal foil (P) is increased in the region along the contour of the window (10). Many regions ( _SP ) are formed.

When the window (10) is formed on the laminated base material (2) shown in FIG. 33 (a) by ultrasonic processing, a metal foil is formed on the side surface of the base material (2) as shown in FIG. 33 (b). It is also one of the features that (P) is arranged, and when a method different from the present invention, for example, a metal foil (P) punched corresponding to the region of the window (10) is laminated on the base material, the figure is shown in the figure. The metal foil (P) is not arranged on the side surface of the base material (2) as shown in 33 (b).

Subsequently, a modified example of the window (10) of the anti-counterfeit medium (1) according to the third embodiment will be described.

FIG. 34 is a diagram showing a first modification of the anti-counterfeit medium (1) according to the third embodiment, and in the anti-counterfeit medium (1) shown in FIG. 10, further the base material (2) and heat. It is an anti-counterfeit medium (1) having a structure in which a metal foil (P) is laminated between a plastic resin layer (12), and a metal foil is also placed on a base material (2') surrounded by an opening (11). (P) is laminated. As described above, when ultrasonically processed using the mold (32) shown in FIG. 11, the base material on the thermoplastic resin layer (12) in contact with the concave second region (32B). In (2'), the ultrasonic processing is not performed, so that the state remains as it is. Therefore, when ultrasonic processing is performed using the mold (32) shown in FIG. 11 according to the method for forming the window (10) according to the third embodiment, the base material (2') and the thermoplastic resin layer (2') are formed. By leaving the metal foil (P) between 12) as it is, the window (10) having the configuration shown in FIG. 34 can be formed. It should be noted that the metal foil is formed on the contour portion of the inner diameter of the donut shape in the same manner as the region (S) having a high fiber density is formed on the contour portion of the inner diameter of the opening (11) of the donut shape by ultrasonic processing. _{A region (SP} ) having a large amount of metal material constituting (P) is formed.

The first modification of the anti-counterfeit medium (1) of the third embodiment is on a substrate (2') surrounded by an opening (11) as shown in FIGS. 13 and 14. Also, the metal foil (P) can be laminated in the same manner. This configuration requires precision in the placement of the base material (2') surrounded by the opening (11), and also requires a high degree of precision in the placement of the metal foil (P), making it difficult to counterfeit. It is possible to improve the sex.

Further, in the first modification of the anti-counterfeit medium (1) of the third embodiment, the metal foil (P) is laminated only on the base material (2') surrounded by the opening (11). It can also be configured as such. For example, in the case of the window (10) having the configuration shown in FIG. 34, the metal foil (P) extends from the base material (2') surrounded by the opening (11) to a part of the opening (11). ) May be laminated and ultrasonically processed.

A second modification of the anti-counterfeit medium (1) according to the third embodiment will be described with reference to FIG. 35. In the second modification, as shown in FIG. 35, a metal foil (P) is laminated between the base material (2) and the thermoplastic resin layer (12) in a region adjacent to a part of the window (10). It is a configuration that has been made.

In this case, as shown in FIG. 36, the metal foil (P) is laminated on the base material (2) of the region adjacent to a part of the window (10) and the region corresponding to the window (10). Perform ultrasonic processing. The broken line shown in FIG. 36 indicates a region where the window (10) is formed by ultrasonic processing.

When the base material (2) on which the metal foil (P) shown in FIG. 36 is laminated is ultrasonically processed as shown in FIGS. 37 (a) and 37 (b), the first region (32A) having a convex shape is formed. By moving the fibers constituting the base material (2) and the metal foil (P) outward along the contour of the above, the region (S) having a high density of fibers and the metal material constituting the metal foil (P) A large amount of region ( _SP ) is formed. Further, the base material (2) and the metal foil (P) penetrated to form an opening (11), and the thermoplastic resin layer (12) laminated on the front and back surfaces of the base material (2) was adhered. The state is set, and the window (10) shown in FIG. 37 (c) is formed. Note that FIG. 37 is a diagram schematically showing a state in which ultrasonic processing is performed on the base material (2) on which the metal foil (P) is laminated, and the fibers and metals constituting the base material (2) are shown. The direction in which the metal material constituting the foil (P) moves toward the contour of the convex first region (32A) is indicated by an arrow line.

Also in the second modification, as shown in FIG. 38, the metal foil (P) may be laminated on the base material (2') surrounded by the opening. The window (10) shown in FIG. 38 is formed by ultrasonically processing the base material (2) on which the metal foil (P) shown in FIG. 36 is laminated using the mold (32) shown in FIG. be able to. At this time, the metal foil (P) remains as it is and is laminated on a part of the base material (2') surrounded by the opening (11).

Further, in the second modification, the metal foil (P) is laminated on the base material (2') surrounded by the opening (11) as shown in FIG. 39 (a) due to the shape of the mold. It is also possible to separately provide a portion where the metal foil (P) is not laminated and a portion where the metal foil (P) is not laminated. Further, as shown in FIG. 39 (b), only the portion where the metal foil (P) is laminated on the base material (2') surrounded by the opening (11) can be provided. Further, as shown in FIG. 39 (c), only the portion where the metal foil (P) is not laminated on the base material (2') surrounded by the opening (11) can be provided. In each configuration, the mold (32) is provided with a concave second region (32) so that the base material (2') surrounded by the opening (11) is not ultrasonically processed. Just do it.

Further, in the second modification, the region where the metal foil (P) is not laminated on the base material (2) adjacent to the contour of the window (10), for example, on the right side of the window (10) shown in FIG. 35. , The contour element (21) described in the second embodiment may be provided.

Further, in the third embodiment, the anti-counterfeit medium (1) formed by combining the windows (10) described above may be used. For example, as shown in FIG. 40 (a), in addition to the “circular” window (10) shown in FIG. 27, a second modified window (10) may be provided. Further, as shown in FIG. 40 (b), the window (10) of the first modified example and the window (10) of the second modified example may be provided.

Hereinafter, examples of the anti-counterfeit medium (1) specifically produced according to the embodiment for carrying out the above-mentioned invention will be described in detail, but the present invention is not limited to this embodiment.

(Example 1)
The first embodiment is the anti-counterfeit medium (1) of the first embodiment, and is an example in which a film is laminated on the front and back surfaces of the base material (2) and ultrasonically processed to form a window (10). .. Hereinafter, the details of the anti-counterfeit medium (1) of Example 1 will be described.

First, as the thermoplastic resin layer laminating step (S1), ^{brown paper having a thickness of 100 μm and a basis weight of 80 g / m 2} was used for the base material (2), and the thermoplastic resin layer (2) was placed on the front and back of the base material (2). As 12), a PP film (Pyrene Toyobo Co., Ltd.) having a thickness of 55 μm was attached.

The mold (32) used for the ultrasonic processing machine (W5080 stamp type manufactured by Nippon Avionics Co., Ltd.) (30) is made of aluminum alloy (JIS A 7075), and the height (h) of the mold (32) is large. The one of 500 μm was used. The design of the convex first region (32A) of the mold (32) is as shown in FIG. 4A, and is a circle having a diameter of 10 mm. Then, as the ultrasonic processing step (S2), ultrasonic processing is performed under the processing conditions of pressure 0.3 MPa, processing time 0.3 seconds, and amplitude 40 μm, and counterfeiting provided with the circular window (10) shown in FIG. A preventive medium (1) was produced.

FIG. 25 is a cross-sectional view of a region where the window (10) of the anti-counterfeit medium (1) is formed. As shown in FIG. 25, in the base material (2) itself, voids are seen between the fibers, but in the contour portion of the window (10), the fibers are brought together by ultrasonic processing, so that the voids are small. The density was partially high. The range (T) of the region where the fibers are gathered along the contour of the window (10) formed by ultrasonic processing is 700 μm, and the thickness (H) of the region where the fiber density is high is 300 μm. It was thicker than the base material (2) of.

When the anti-counterfeit medium (1) of Example 1 was observed under transmitted light, the PP film was visually recognized as a transparent window (10), and the fiber density increased along the contour of the window (10). It was confirmed that the appearance was like a black watermark and the visibility of the window (10) was improved. Further, under the reflected light, since it is thicker than the surrounding base material (2), the effect that the shape of the window (10) can be visually recognized is obtained three-dimensionally.

(Example 2)
Example 2 is an example in which the structure of the thermoplastic resin layer (12) is different from that of the anti-counterfeit medium (1) of Example 1, and is an example in which a multi-interference film is used. Specifically, a multi-interference film having a thickness of 30 μm was laminated on one surface of the base material (2), and a PP film having a thickness of 55 μm (Pyrene Toyobo Co., Ltd.) was laminated on the other surface. Since other configurations are the same as those in the first embodiment, the description thereof will be omitted.

In the above laminated state, ultrasonic processing was performed under the same processing conditions as in Example 1 to produce an anti-counterfeit medium (1) provided with a window (10). In the window (10), the interference film has a structure in which the interference effect is not generated because the interference structure is eliminated by ultrasonic processing. When the anti-counterfeit medium (1) of Example 2 was observed under transmitted light, it was confirmed that the visibility of the window (10) was improved by the contour portion as in Example 1. Further, when observed under reflected light, the window (10) was simply seen as transparent, and an interference effect was confirmed around it, and it was confirmed that the visibility of the window (10) was further improved.

(Example 3)
Example 3 is an example of an anti-counterfeit medium (1) provided with a base material (2') surrounded by an opening (11) shown in FIG. 13 (a) as a modification of the shape of the window (10). be. Since the configurations of the base material (2) and the thermoplastic resin layer (12) are the same as those in the first embodiment, the description thereof will be omitted.

In the mold (32) used for ultrasonic processing, the convex first region (32A) has a shape corresponding to the “star shape” shown in FIG. 13 (a), and the convex first region (32A). The height difference between 32A) and the concave second region (32B) was 200 μm. Then, as the ultrasonic processing step (S2), ultrasonic processing is performed with the processing conditions set to a pressure of 0.3 MPa, a processing time of 0.3 seconds, and an amplitude of 25 μm to obtain a window (10) having the shape shown in FIG. 13 (a). The anti-counterfeit medium (1) provided was prepared. Even when the base material (2') surrounded by the opening (11) is formed as in the third embodiment, the window (10) is easily formed by one processing using an ultrasonic processing machine. I was able to.

(Example 4)
The anti-counterfeit medium (1) of the fourth embodiment is the anti-counterfeit medium (1) of the second embodiment, and is an example in which the contour element (21) constituting the contour portion (20) is formed by printing. The design of the window (10) is an example having the same "circular shape" as that of the first embodiment, and the configurations of the base material (2) and the thermoplastic resin layer (12) are the same as those of the first embodiment. Therefore, the description is omitted.

FIG. 26 (a) is a plan view showing a region to be printed in order to form the contour element (21) on the base material (2) when the anti-counterfeit medium (1) of Example 4 is produced. (B) is a cross-sectional view thereof. First, in order to form the contour element (21), a red process offset ink (DaiCure Abilio Process Red N) is used on the base material (2), and the contour portion (20) and the contour portion (20) shown by the vertical line in FIG. 26 (a) are used. Solid printing was performed on the area (circle with a diameter of 15 mm) corresponding to the opening (11) indicated by the horizontal line. At this time, as shown in FIG. 26 (b), printing for forming the contour element (21) was performed before the opening (11) was provided. Since the printing process was performed in a state where the base material (2) did not penetrate, the region where the opening (11) was formed is shown by a broken line in FIG. 26 (b). Further, since the thermoplastic resin layer (12) is also not laminated on the base material (2) at the stage of printing, it is shown by a alternate long and short dash line in FIG. 26 (a).

FIG. 26 (c) is a plan view when the thermoplastic resin layer (12) is laminated on the front and back of the base material (2) by the thermoplastic resin layer laminating step (S1), and FIG. 26 (d) is a plan view. , It is a cross-sectional view. As shown in FIG. 26 (d), a PP film (Pyrene Toyobo Co., Ltd.) was laminated as the thermoplastic resin layer (12) so as to cover the solid printed area on one side of the base material (2). A PP film (Pyren Toyobo Co., Ltd.) was also laminated on the other surface.

FIG. 26 (e) is a plan view of the anti-counterfeit medium (1) ultrasonically processed in the region where the thermoplastic resin layer (12) is laminated by the ultrasonic processing step (S2), and is shown in FIG. 26 (f). ) Is a cross-sectional view thereof. The ultrasonic processing was performed using the same mold (32) as in Example 1 under the same conditions as in Example 1. When ultrasonic processing is performed, the base material (2) corresponding to the convex first region (32A) and the printing layer on it are moved outward along the contour of the first region (32A). The thermoplastic resin layer shown in FIGS. 26 (e) and 26 (f) was formed, and the thermoplastic resin layer was laminated on the front and back of the base material (2) in the region of the opening (11). In (12), the window (10) was formed in a bonded state. Further, of the solid printed areas, the areas remaining without ultrasonic processing form contour elements (21) along the contours of the windows (10) shown in FIGS. 26 (e) and 26 (f). Was done.

When the anti-counterfeit medium (1) of Example 4 is observed under reflected light, the red contour portion (20) can be visually recognized along the contour of the window (10), thereby improving the authenticity of the window (10). I was able to. Further, from the state where the solid printing layer and the thermoplastic resin layer (12) are laminated on the base material (2) shown in FIG. 26 (d), the contour portion (20) is processed by processing with an ultrasonic processing machine. The window (10) having the above could be easily formed.

(Example 5)
The anti-counterfeit medium (1) of Example 5 is the anti-counterfeit medium (1) of the third embodiment, and the metal foil (P) and the thermoplastic resin layer (P) are placed on one surface of the base material (2). This is an example in which OVDs in which 12) are integrated are laminated. The shape of the opening (11), that is, the window (10) was the "doughnut shape" shown in FIG. 34.

As the thermoplastic resin laminating step (S1), brown paper having a thickness of 100 μm and a basis weight of 80 g / m ² was used for the base material (2), and one of the base materials (2) was used as the thermoplastic resin layer (12). An OVD in which a laminated film and a metal foil (P) were integrated was laminated on the surface, and a PP film (Pyrene Toyobo Co., Ltd.) having a thickness of 55 μm was attached to the other surface of the base material (2).

In the ultrasonic processing step (S2), the mold (32) used for ultrasonic processing was made of an aluminum alloy (JIS A 7075). As the design of the mold (32), the one corresponding to the shape of the opening (11) shown in FIG. 34 was used. Then, using an ultrasonic processing machine (W5080 stamp type manufactured by Nippon Avionics Co., Ltd.), ultrasonic processing was performed with the processing conditions set to a pressure of 0.3 MPa, a processing time of 0.3 seconds, and an amplitude of 30 μm to counterfeit Example 5. A preventive medium (1) was produced. When the fibers are moved outward along the contour by ultrasonic processing, a part of the metal foil (P) on the base material (2) is also moved at the same time, so that the opening (11) is surrounded by the OVD. The window (10) could be easily manufactured.

(Example 6)
Example 6 is an example in which the structure of the thermoplastic resin layer (12) is different from that of the anti-counterfeit medium (1) of Example 1, and is an example formed by applying a liquid thermoplastic resin. Specifically, polycarbonate powder (Iupizeta FPC-0330 Mitsubishi Gas Chemical Co., Ltd.) is used as a thermoplastic resin, and a liquid dissolved in xylene (Wako Pure Chemical Industries, Ltd.) is applied to the front and back of the base material (2) to draft. The thermoplastic resin layer (12) was formed by air-drying in the inside. The thickness of the thermoplastic resin layer (12) was 30 μm.

In the above laminated state, ultrasonic processing was performed under the same processing conditions as in Example 1 to produce an anti-counterfeit medium (1) provided with a window (10). When the anti-counterfeit medium (1) of Example 3 was observed under transmitted light, it was confirmed that the visibility of the window (10) was improved by the contour portion as in Example 1. Further, under the reflected light, since it is thicker than the surrounding base material (2), the effect that the shape of the window (10) can be visually recognized is obtained three-dimensionally.

1 Anti-counterfeit medium with windows, Anti-counterfeit medium 2 Base material 10 Window 11 Opening 12 Thermoplastic resin layer 20 Contours 21 Contour elements 21a, 21b Contour elements of different colors 21A Contour elements 21B with white watermark effect Black Contour element with watermark effect 30 Ultrasonic processing machine 31 Horn 32 Mold 32A First area 32B Second area 33 Anvil 34 Pedestal P Metal foil S Area with high fiber density _SP Metal constituting the metal foil Area with a large amount of material H Thickness of area with a high density of fibers

Claims (9)

A window is formed in which a substrate having fibers is provided with at least one opening, the opening being covered with a thermoplastic resin layer laminated on the front and back of the substrate.
An anti-counterfeit medium having a window characterized in that a region having a high fiber density and a high amount of fiber is partially formed along at least a part of the contour of the window. The anti-counterfeit medium having a window according to claim 1, wherein the opening is formed in a shape surrounding a part of the base material. A contour portion having a contour element is formed along at least a part of the contour of the window, and the contour element is composed of a printing material, a structure having a thickness different from that of the surrounding base material, or a metal foil. The anti-counterfeit medium having the window according to claim 1 or 2, characterized in that it is any of the above. When the contour element is composed of the printing material, the contour element is i) formed of a printing material having a color different from that of the base material, or ii) printing of the same color or a different color as the base material. The anti-counterfeit medium having a window according to claim 3, characterized in that it is raised and formed by a material, or formed by iii) watermark ink. A metal foil is laminated between at least one surface of the substrate and the thermoplastic resin layer in a region adjacent to at least a part of the contour of the window, and laminated between the substrate and the thermoplastic resin layer. In the plasticized metal foil
The anti-counterfeit medium having a window according to claim 1 or 2, wherein the region adjacent to the contour of the window has a large amount of metal material partially constituting the metal foil. A thermoplastic resin layer is laminated on the front and back of a base material having fibers, and the region where the thermoplastic resin layer is laminated is subjected to ultrasonic processing using a mold having a convex first region. In the base material corresponding to the first region of the convex shape, at least one opening through which a part of the base material penetrates by moving the fibers constituting the base material to the periphery of the first region. A method for producing an anti-counterfeit medium having a window, which comprises forming a portion and forming a window covering the opening by a thermoplastic resin layer laminated on the front and back surfaces of the base material. The mold has a concave second region surrounded by the convex first region, and by forming the window only in the region corresponding to the first region, the window causes the mold. The method for producing an anti-counterfeit medium having a window according to claim 6, wherein an enclosed substrate is formed. Before laminating the thermoplastic resin layer on the front and back of the base material having the fibers, printing or making is performed along the contour of at least a part of the region corresponding to the window formed on the base material. 6. The method for producing an anti-counterfeit medium having a window according to claim 6 or 7. A metal foil is laminated between at least one surface of the base material having the fiber and the thermoplastic resin layer, and ultrasonic processing is performed using the mold to obtain the first region of the convex shape. By moving the corresponding metal foil around the first region, at least one opening through which a part of the metal foil penetrates is formed, and the thermoplastic resin layer laminated on the front and back surfaces of the base material is used. The method for producing an anti-counterfeit medium having a window according to claim 6 or 7, wherein a window covering the opening is formed.

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