JP5200305B2 - Product packaging bag - Google Patents

Description

The present invention relates to a product packaging bag used for selling small products.
In particular, the present invention relates to a product packaging bag in which an instruction for handling a product to be stored is printed inside a stacked layer of triple films forming a bag body portion of the bag material.

For the sales of small products, plastic film product packaging bags can be manufactured automatically and efficiently by a continuous manufacturing method, products can be easily packaged, the packing volume is small, and they can be hung and displayed even in a small sales area. Packaging costs and packaging costs (transportation costs) are very widespread as inexpensive packaging materials.
In recent years, however, the number of products that are complicated to handle, even small products, has increased, and regulations such as the PL Law have become more stringent. Therefore, detailed product performance information, handling instructions, and information on usage, etc., can be provided in product packaging bags. It has become necessary to attach to.
At present, the plastic film of the bag part of the product packaging bag is occupied by the name of the product, printed letters or patterns for promotion, so the detailed performance of the product, the printing of the instruction manual is printed on the product packaging bag It is limited to the film surface on the back side of the bag body.
The product packaging bag of a small product has a narrow bag surface area, and it is impossible to describe detailed product performance explanations and handling instructions only with the print space on the film surface on the back side of the bag.
Therefore, when a detailed instruction manual is required, a separate instruction manual is created, and the instruction manual is stored in the product packaging bag together with the product.
Producing a separate instruction manual takes time and money, impairs the convenience of packaging, which is an advantage of the product packaging bag, and increases the packaging cost.
Japanese Patent Laid-Open No. 11-301695 Japanese Patent Application No. 2000-6268 JP 2000-326993 A

  The present invention is a product packaging bag that is the same size as a conventional plastic film product packaging bag, can be manufactured by the same efficient continuous manufacturing method as a conventional product packaging bag, and has low processing and packaging costs. An object of the present invention is to provide a product packaging bag in which the printing space of the body itself is increased and there is no need to separately prepare and attach a product instruction manual.

The present invention has a triple structure on the back side film of the bag body of the product packaging bag, the wording of the instruction manual is printed on the laminated surface, and the consumer who has purchased the product takes out the product, This is an invention in which the triple-side structure on the back surface side can be developed to read the printed text on the two to four sides that has been printed in advance inside the stack.
That is, the present invention comprises the following items.
(1) A heat seal 3 consisting of a header part of which both sides of a plastic sheet are covered with a plastic film and a printed plastic film bag body part having an opening in the lower part, and separating the printed plastic film bag body part and the header part. The printed plastic film bag body part is constituted by the printed plastic film 1 in which the front side printed plastic film 1a and the back side printed plastic film are continuous, and the side edge 8 of the bag body part is the front side printed plastic film. The side edge of the back side printed plastic film is formed by welding, and the opening edge of the opening 9 of the bag body portion has a sealing means comprising an adhesive layer 6 with a release paper 7 and a sealing piece 10, and is made of plastic. In product packaging bags, the printed plastic film on the back side of the printed plastic film body is a triple product. Formed by the film, the triple laminated film is continuous from the inner layer printing film 1b continuous from the back side coating film of the header portion, the middle layer printing film 1d continuous from the inner layer printing film, and the middle layer printing film. It is composed of an outer layer printing film 1f, and a fusion inhibiting surface 5 is interposed at the side edge portion between the inner layer printing film 1b and the middle layer printing film 1d of the triple laminated film, and the triple laminated film and the front film A product packaging bag, wherein the side edge of the quadruple film and the side edge of the header portion are fused and welded simultaneously.
(2) The product packaging bag according to item (1), wherein a fusion-inhibiting treatment surface is interposed at a side edge between the laminated layers of the middle layer printed film and the outer layer printed film of the triple laminated film.
(3) The product packaging bag according to (1) or (2), wherein the fusion-inhibiting treatment surface is a corona discharge treatment layer at a side edge between the laminated layers of the inner layer printing film and the middle layer printing film of the triple laminated film.
(4) A heat seal 3 consisting of a header part of which both sides of the plastic sheet are covered with a plastic film and a bag part made of a printed plastic film having an opening on the upper part, and separating the bag part made of the printed plastic film from the header part The printed plastic film bag body part is constituted by the printed plastic film 1 in which the front side printed plastic film 1a and the back side printed plastic film are continuous, and the side edge 8 of the bag body part is the front side printed plastic film. And the back side printed plastic film are welded on the side edges, and the opening edge 9 of the bag body has a sealing means comprising a pressure-sensitive adhesive layer 6 with a release paper 7 and a sealing piece 10 at the opening edge. In the bag, the back side of the printed plastic film bag body is printed in triple layers. The triple laminated film is formed of an inner layer printing film 1b that continues from the front side printed plastic film 1a through the bottom of the bag body, an intermediate layer printing film 1d that continues from the inner layer printing film, and the It consists of an outer layer printing film 1f continuous from the middle layer printing film, and a fusing inhibition treatment surface 5 is interposed at the side edge between the inner layer printing film 1b and the middle layer printing film 1d of the triple laminated film. A product packaging bag comprising a side edge of a quadruple film in which the triple laminated film and a front film are combined and a side edge of a header portion are fused and welded simultaneously.
(5) The product packaging bag according to (4), wherein a fusion-inhibiting treatment surface is interposed at the side edge between the laminated layers of the middle layer printed film and the outer layer printed film of the triple laminated film.
(6) The product packaging bag according to (4) or (5), wherein the fusion-inhibiting treatment surface is a corona discharge treatment layer at a side edge portion between the inner layer printing film and the middle layer printing film of the triple laminated film.
(7) The product packaging bag according to any one of (1) to (6), wherein a plastic sheet is laminated on at least one side of the front side printed plastic film and the back side printed plastic film.
(8) The product packaging bag according to any one of (1) to (7), wherein printing of the printed plastic film is prevented from showing through by solid color printing.

  The structure of the product packaging bag of the present invention is almost the same size as a conventional plastic film product packaging bag, and as a manufacturing method, a continuous folding process that is commonly used in a bag body manufacturing process and a bag body manufacturing process. It is a structure that can be manufactured continuously and efficiently just by adding, and the printing space for up to 5 sides, including the back side of the first bag body, in units of the back side surface of the bag body for printing instruction manuals It is possible to achieve packaging with low packaging costs and low packaging costs without attaching a separate instruction manual for the product.

The present invention will be described in detail with reference to the drawings of specific embodiments.
The 1st aspect of the product packaging bag with a header of this invention is a product packaging bag which consists of a header part and a bag body part, as shown in sectional drawing of FIG. 1, and the top view of FIG. In the header part, both the front and back surfaces of the plastic sheet 2 serving as a core material are covered with a plastic coating film 1c.
The plastic sheet used as the core of the header of the present invention may be a thermoplastic resin 100-800 μm plastic sheet, such as synthetic paper.
The printing plastic film used in the present invention may be a plastic film (or plastic sheet) having a thickness of 40 to 500 μm, preferably 60 to 100 μm.
The printing plastic film used in the present invention includes a printing plastic film in which printing is applied to the plastic film, a double printing plastic film obtained by semi-polymerizing the printing plastic film, and a thick plastic sheet laminated on the printing surface of the thin printing plastic film. A laminated printing film or a printed plastic sheet in which a thin plastic film is laminated as a protective film on the printing surface can be used. The printed surface of the present invention can print a printed pattern or a printed pattern on a ground solid print to prevent show-through except when laminated on synthetic paper.
1-2 is formed between the inner surface of the front-side printed plastic film 1a and the inner surface of the inner-layer printed film 1b of the back-side printed plastic film, and is formed by two printed plastic films. At the upper part of the formed bag body portion, the front side printed plastic film 1a and the inner layer printed film 1b are triple-laminated together with the lower edge of the plastic sheet 2 as the core material of the header portion by the heat seal 3 that separates the header portion and the bag body portion. It is welded together.

The concept of the phrase “front side and back side” of the front side printed plastic film and the back side printed plastic film in the present invention is expressed for convenience of explanation, and the front side printed plastic film 1a described here is regarded as the back side. The other side can be seen as the front side. That is, in the product packaging bag of the present invention, the words on the front side and the back side are determined by the recognition of the person who handles them, and are compatible with each other.
The both side edges 8 of the bag part of FIG. 2 are heat-welded and have an opening 9 below. The opening 9 of the bag part has a sealing piece 10 extending from the front end of the front side printed plastic film 1a. The leading edge of the sealing piece 10 is a plastic product packaging bag having sealing means in which a release paper 7 is adhered to the adhesive layer 6. This sealing means peels off the release paper 7 of the sealing piece 10, attaches the exposed adhesive layer 6 to the leading edge of the inner layer printing film 1 b, and seals the opening of the bag body portion with the sealing piece 10. be able to.
The sealing means of the present invention is not limited to the one shown in FIG. 1, and all known means for sealing the opening with the sealing piece 10 can be used. For example, the pressure-sensitive adhesive layer 6 with the release paper 7 shown in FIG. 1 may be provided on the leading edge of the outer layer printing film 1f and sealed by bringing the leading edge of the sealing piece 10 into contact therewith.
Further, a sealing piece 10 is provided by extending the leading end side of the outer layer printing film 1f of the back side printing film, and the release paper 7 is attached to the leading edge of the sealing piece 10 or the leading edge of the front side printing film with which the leading edge abuts. A sealing means for providing the adhesive layer 6 with adhesive can be used.
The front side printed plastic film 1a of the bag body is continuous with the plastic coated film 1c coated on the front side and the back side of the plastic sheet 2 of the header core material, and the inner layer printing of the triple laminated film of the back side printed film of the bag body It is continuous with the film 1b.

In FIG. 1, a plastic-coated film 1c, a front-side printed plastic film 1a, an inner-layer printed film 1b, an intermediate-layer printed film 1d, and an outer-layer printed film 1f are shown as one continuous film.
Since the printing of the front side printed plastic film 1a and the triple laminated film is printed on the same surface side, the printed printing or printing pattern of the front side printed plastic film 1a and the triple laminated film is printed simultaneously by one printing plate. be able to.
Although it is not essential that the plastic-coated film 1c has a printing surface, when printing is performed on the plastic-coated film 1c, it is desirable to simultaneously print on the same surface as the front-side printed plastic film 1a and the inner-layer printing film 1b. .
In order to manufacture a product packaging bag at a low cost, it is an essential condition to manufacture it by a continuous manufacturing process. In the continuous manufacturing process, a long printed film with a repeated printing pattern is used to form a bag structure, which is melted for each width of the product packaging bag to produce one product packaging bag. To do. The fact that the printing of the front side printing film 1a and the triple laminated film is simultaneously printed on the same surface of one continuous plastic film makes it easy to synchronize the printing of the front side printing film 1a and the triple laminated film. be able to.
In the product packaging bag of FIG. 1, the inner layer printing film 1b which is continuous from the back side covering film of the header portion is folded back and folded upward in the vicinity of the lower portion of the bag body portion, and is folded upward. In the vicinity of the upper part of the bag body, the film 1d is turned back and turned over again, folded downward, and turned down to form the outer layer printed film 1f, extending to the lower part of the bag body. Yes. By the inner layer printing film 1b, the middle layer printing film 1d, and the outer layer printing film 1f, a triple laminated film is formed on the back side of the bag body.
In the continuous manufacturing method of the product packaging bag of the present invention, in order to form a triple laminated film, the first fold is applied while sandwiching the header core material at the position corresponding to the header portion of the long belt-like film, It is preferable to fold the middle layer printing film 1d and the outer layer printing film 1f and finally fold the boundary line between the middle layer printing film 1d and the inner layer printing film 1b.

In the triple laminated film, a fusion inhibition treatment surface 5 is interposed at a side edge welded portion between the laminated layers of the inner layer printed film 1b and the middle layer printed film 1d. In the fusing step, the fusing inhibition treatment surface 5 is present between the welded materials to prevent complete fusing, and even if the fusing inhibition treatment surface 5 is interposed on the printing layer of the printing film, Even if it is interposed between the film surface and the printing layer, the same anti-adhesion effect is exhibited.
In FIG. 1, the fusion-inhibiting treatment surface is interposed not only on the side edges but also on the entire surface of the stack. In order to form a semi-welded state, the fusion inhibition treatment surface 5 only on the side edge portion is sufficient, but it is easier to perform the treatment if the entire surface is treated. The fusion-inhibiting treatment surface 5 can be provided in advance on any surface of the laminate that should be in a semi-welded state. The method for forming the fusion-inhibiting treatment surface is a method in which, when thermal fusing is applied to the lamination of the plastic film, the heat-welding between the plastic films is inhibited, and a semi-welded state that can be peeled off with a finger is obtained. Can be used without any particular restrictions.
As such a processing means, in the fusing step, a substance that inhibits half of the welding on the fusing line of the film welding boundary surface, a means for interposing a fusing inhibiting substance, and a film surface are roughened to form a welding surface. There is a means to inhibit the adhesion by half. As the former fusing inhibitor, hot melt adhesive, varnish, oil-based ink vehicle, starch paste, gelatin, etc. can be used, and it can be formed by applying an adhesive in which an inorganic fine powder substance is dispersed. it can.
The latter film surface adhesion inhibition includes physical roughening treatment means such as corona discharge treatment means. In particular, since the corona discharge treatment can utilize commercially available film whose corona discharge treatment has already been performed on the film surface in a lump, there is no need to perform a new substance coating process in the product packaging bag manufacturing process. This is advantageous. In the case of using a corona discharge treated surface, it is preferable to apply printing on a surface that has been roughened by corona discharge on the film, since the printability of the film is also improved. In addition, the fusion-inhibiting treatment surface may be provided on either side of the lamination surface before the lamination fusing step, but the fusion-inhibiting treatment surface is provided on both surfaces of the lamination to adjust the welding force weakly. be able to. In particular, in the case of corona discharge treatment, it is preferable to provide the corona discharge treatment because the welding power can be appropriately reduced.
When using a printing film that has been printed on a film having a corona discharge treatment surface, the printability is improved, and the inner surface of the bag body has no corona discharge treatment surface, and the bag side edge is completely welded. Since a strong bag body is formed by welding, a corona discharge treatment surface is interposed between the middle layer printing film 1d and the inner layer printing film 1b to form a semi-welded state with an appropriate strength. The operation of peeling the laminate with a finger can be performed smoothly.

In the embodiment of the product packaging bag of FIG. 1 of the first aspect, a commercially available polypropylene film subjected to corona discharge treatment is used.
In the product packaging bag of FIG. 1, the side edge of the quadruple film that combines the triple laminated film and the front side printed plastic film 1a and the side edge of the header portion made of the plastic-coated film 1c and the header core are simultaneously melted. The side edges of the packaging bag are integrally welded and fixed.
By this fusing process, the side edge of the quadruple film is completely heat-welded with the lamination of the front side printed plastic film 1a and the inner layer printing film 1b and the middle layer printing film 1d and the outer layer printing film 1f. It cannot be peeled off. Since the fusion-inhibiting treatment surface 5 (corona discharge treatment surface) exists between the inner layer printing film 1b and the intermediate layer printing film 1d, the lamination is welded in a semi-welded state. Therefore, when the folded portion in the vicinity of the header of the bag body is strongly peeled off with a finger, the side edge welded portion of the folded portion and the welded portion of the inner layer printed film 1b are smoothly welded without destroying the nearby film material. Once separated, the double layer film of the middle layer printing film 1d and the outer layer printing film 1f becomes an integrated sheet, and the side edges are smoothly peeled off sequentially from the upper part of the inner layer printing film 1b. The laminated layers of the inner layer printed film 1b and the middle layer printed film 1d can be completely separated and opened, and the printing surface of the printing film on both sides of the laminated layer can be exposed and read. .

In the second aspect of the present invention, a second fusion-inhibiting treatment surface is interposed at the side edge between the laminated layers of the middle layer printed film 1d and the outer layer printed film 1f of the triple laminated film having the cross-sectional structure shown in FIG. This is a mode in which the lamination is semi-welded. When the space between the laminated layers is peeled off from the front end of the outer layer printed film 1f, the printed surface printed on the laminated surface side of the middle layer printed film 1d and the outer layer printed film 1f can be exposed and read. The printing surface exposed here will be printed on the opposite side of the printing surface of the front side printing film, and it takes time and effort to print twice on the front and back sides, but a half-fold polymerization of the long film printed on one side If used, double-sided printing can be performed once by printing.
The fusion inhibition treatment surface provided at the side edge between the laminated layers of the intermediate layer printing film 1d and the outer layer printing film 1f is on the surface opposite to the adhesion inhibition treatment surface 5 provided between the inner layer printing film 1b and the intermediate layer printing film 1d. Will be processed. It is important that the fusion-inhibiting treatment surface 5 on the opposite surface is not provided with a fusion-inhibiting treatment surface at the side edge between the laminates of the front-side printed plastic film 1a and the inner-layer printing film 1b. If the fusion-inhibiting treatment surface 5 is interposed on this surface, the side edge of the bag body can be peeled off in a semi-welded state, and the strength of the bag body is significantly reduced.
The second fusion inhibition treatment surface 5 used in the second mode can be a means of the first fusion inhibition treatment surface 5 and another fusion inhibition treatment surface 5. For example, when a commercial film in which the entire surface of one side of the film is subjected to corona discharge treatment is used as the first anti-fusing treatment surface 5, the second anti-fusing treatment surface 5 on the opposite side is fused with a partially applied release varnish. The surface can be treated to prevent adhesion.
The 3rd aspect of this invention is an aspect which has the opening part shown in sectional drawing of FIG. 3 in a bag upper part.

FIG. 3 shows that the printed plastic film of the bag portion extends downward from the plastic-coated film 1c of the header portion and forms the bottom portion of the bag body via the front-side printed plastic film 1a of the bag portion. This is a printing film which is inverted upward and is continuous with the back side printing plastic film of the bag body. A triple laminated film of the back side printing film of the bag body is an inner layer printing film 1b continuous upward from the bottom of the bag body, and the inner layer printing film 1b is folded outwardly in the vicinity of the upper part of the bag body and inverted and folded downward. The middle layer printed film 1b and the middle layer printed film 1b are folded back and reversed again in the vicinity of the bottom portion of the bag body, and the outer layer printed film 1f is extended to the lower edge of the upper header portion to form a bag body. A triple laminated film is formed on the back side of the film. In the product packaging bag of FIG. 3, the fusion inhibition treatment surface 5 is interposed at the side edge welded portion between the inner layer printing film 1b and the middle layer printing film 1d of the triple laminated film. Then, the four layers of the triple laminated film and the front side printing film and the side edges of the header portion are melted and the side edges are thermally welded to produce the product packaging bag of FIG. A sealing piece 10 is extended on the upper edge of the outer layer printing film 1f, and the pressure-sensitive adhesive layer 6 with the release paper 7 is provided on the upper edge as sealing means.
The user can read the instruction manual of the product packaging bag printed on the laminated surface by peeling off the semi-welded layer formed between the laminated layers of the inner layer printed film 1b and the middle layer printed film 1d on the back side of the bag. it can.
As a sealing means for the opening edge of the opening portion of the bag body portion of the third aspect, as shown in FIG. 4, a sealing piece 10 is attached extending from the lower edge of the header portion, and an adhesive with a release paper is attached to this leading edge. After the layer 6 is provided and the release paper is peeled off, a sealing means for sealing with the adhesive layer 6 on the outer surface of the outer layer printing film 1 f can be obtained.
Furthermore, as a fourth aspect, a second fusion inhibition treatment surface is interposed at the side edge between the laminated layers of the middle layer printed film 1d and the outer layer printed film 1f of the triple laminated film having the cross-sectional structure shown in FIGS. (Not shown), this lamination is semi-welded. Also in the fourth aspect, the first fusion inhibition treatment surface 5 is a corona discharge treatment layer, and the second fusion inhibition treatment surface is a substance application treatment layer such as a partial corona discharge treatment layer or a partial release varnish. desirable.
By separating the laminated layers of the middle layer printing film 1d and the outer layer printing film 1f, two printed surfaces are further exposed.
In the product packaging bag of the present invention, when a thin printed plastic film is used, the front-side printed plastic film and the back-side printed plastic film are used to hold the waist of the bag body and make a self-supporting product packaging bag. A thick plastic sheet can be laminated on at least one of the above.
Further, it is desirable that the printing plastic film of the present invention is printed with ground-color solid printing to prevent the show-through. In particular, it is preferable when the printing surface exists on both sides.
When a thin front side printed plastic film and a back side printed plastic film are used in the bag body part of the product packaging bag of the present invention, at least one of them is laminated with a plastic sheet as a core material, It can be made a self-supporting bag with rigidity.

  This is a particularly useful invention when a detailed instruction manual is required in the sale of a small product to be packaged in a product packaging bag.

It is sectional drawing of the product packaging bag of this invention. It is a top view of FIG. It is sectional drawing of the other aspect of this invention. It is sectional drawing of the other aspect of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Printing plastic film 1a Front side printing plastic film 1b Inner layer printing film 1c Plastic coating film 1d Middle layer printing film 1f Outer layer printing film 2 Plastic sheet 3 Heat seal 4 Suspension hole 5 Adhesion prevention processing surface 6 Adhesive layer 7 Release paper 8 Side Edge 9 Opening 10 Sealing piece

Claims (8)

  The plastic sheet is composed of a header part coated with a plastic film on both sides of the plastic sheet and a printed plastic film bag body part having an opening in the lower part, and has a heat seal 3 for separating the printed plastic film bag body part from the header part. The bag portion of the printed plastic film is composed of a printed plastic film 1 in which the front side printed plastic film 1a and the back side printed plastic film are continuous, and the side edge 8 of the bag portion is printed on the front side printed plastic film and the back side printed film. The side edge of the plastic film is formed by welding, and the opening edge of the opening portion 9 of the bag body has sealing means composed of the pressure-sensitive adhesive layer 6 with release paper 7 and the sealing piece 10, and is a plastic product packaging bag. In this case, the printed plastic film on the back side of the printed plastic film body is a triple laminated film. The triple laminated film is formed of an inner layer printing film 1b continuous from the back side coating film of the header portion, an intermediate layer printing film 1d continuous from the inner layer printing film, and the intermediate layer printing film. It is composed of an outer layer printing film 1f, and a fusion inhibiting surface 5 is interposed at the side edge portion between the inner layer printing film 1b and the middle layer printing film 1d of the triple laminated film, and the triple laminated film and the front film. A product packaging bag, wherein the side edge of the quadruple film and the side edge of the header portion are fused and welded simultaneously.   The product packaging bag according to claim 1, wherein a fusion-inhibiting treatment surface is interposed at a side edge portion between the laminated layers of the middle layer printed film and the outer layer printed film of the triple laminated film.   The product packaging bag according to claim 1 or 2, wherein the fusion-inhibiting treatment surface is a corona discharge treatment layer at a side edge between the laminated layers of the inner layer printing film and the middle layer printing film of the triple laminated film.   The plastic sheet is composed of a header part covered with a plastic film on both sides and a printed plastic film bag body part having an opening in the upper part, and has a heat seal 3 for separating the printed plastic film bag body part from the header part. The bag portion of the printed plastic film is composed of a printed plastic film 1 in which the front side printed plastic film 1a and the back side printed plastic film are continuous, and the side edge 8 of the bag portion is printed on the front side printed plastic film and the back side printed film. In the plastic product packaging bag formed by welding the side edge of the plastic film, and having the sealing means composed of the adhesive layer 6 with the release paper 7 and the sealing piece 10 at the opening edge of the opening 9 of the bag body portion, The back side of the printed plastic film bag body is a triple laminated film. The triple laminated film includes an inner layer printing film 1b continuous from the front side printed plastic film 1a through the bottom of the bag body, an intermediate layer printing film 1d continuous from the inner layer printing film, and the It consists of an outer layer printing film 1f continuous from the middle layer printing film, and a fusing inhibition treatment surface 5 is interposed at the side edge between the inner layer printing film 1b and the middle layer printing film 1d of the triple laminated film. A product packaging bag comprising a side edge of a quadruple film in which the triple laminated film and a front film are combined and a side edge of a header portion are fused and welded simultaneously.   5. The product packaging bag according to claim 4, wherein a fusion-inhibiting treatment surface is interposed at a side edge portion between the laminated layers of the middle layer printed film and the outer layer printed film of the triple laminated film.   The product packaging bag according to claim 4 or 5, wherein the fusion-inhibiting treatment surface is a corona discharge treatment layer at a side edge between the laminated layers of the inner layer printing film and the middle layer printing film of the triple laminated film.   The product packaging bag according to any one of claims 1 to 6, wherein a plastic sheet is laminated on at least one side of the front side printed plastic film and the back side printed plastic film.   The product packaging bag according to any one of claims 1 to 7, wherein the printed plastic film is printed with a ground-color solid print to prevent the show-through.

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