KR100666819B1 - Surface finishing material with hologram pattern - Google Patents

Abstract

A surface finishing material with a hologram pattern is provided to restrain the generation of unit lattice patterns without decreasing an interference pattern effect of hologram. The surface finishing material with a hologram pattern is formed by stacking a lower ink layer(10) formed with patterns of various shapes, an aluminum deposition layer(20), a hologram film layer(30) formed with an interference pattern, an adhesive layer(40), and a transparent coating layer(60) in order. Metal chips of 40~1500 micrometers are mixed in the adhesive layer about 0.5~5wt.% to the total weight. The metal chip is made of one of aluminum, copper, and silver. An upper ink layer(50) formed with a different pattern is stacked between the adhesive layer and the transparent coating layer to increase a cubic effect.

Description

Surface finishing material with hologram pattern}

Figure 1 is a photograph of the surface finish formed with a conventional holographic pattern.

Figure 2 is a cross-sectional view of the surface finish formed hologram pattern according to the present invention.

Figure 3 is a cross-sectional view of another surface finish with a holographic pattern formed in accordance with the present invention.

Figure 4 is a photograph taken a surface finish formed with a holographic pattern according to the present invention.

※ Explanation of symbols about main part of drawing ※

10: lower ink layer 20: aluminum deposition layer

30: hologram film layer 40: adhesive layer

45: metal chip 50: upper ink layer

60: transparent coating layer 70: adhesive layer

80: synthetic resin cushion layer 90: adhesion layer

The present invention relates to a surface finish with a hologram pattern, and to a surface finish with which a unit grid pattern of a hologram film layer can be removed by using an adhesive mixed with a metal chip and a more advanced three-dimensional pattern effect can be exhibited.

Hologram is a three-dimensional image medium made to have interference fringes to reproduce stereoscopic images through holography, a photo technique using light interference.

In more detail, the hologram is divided into two by using a beam splitter, and when one of the beams is directed at the subject, the light diffused from the surface of the subject reaches the holographic photosensitive material. It is called object light. The other one is diffused through the lens and directly shines onto the holographic photosensitive material, which is called reference light.

In this case, the object light and the reference light interfere with each other on the holographic photosensitive material to produce 500 to 1500 very delicate and complicated interference patterns per mm, and the medium recording the interference pattern becomes a hologram. When a beam such as reference light is reflected on the hologram produced through this process, the interference pattern acts as a diffraction grating, and the light is diffracted at a position different from the direction in which the reference light is incident. This is the same as the generated light, which results in the reproduction of the first object light in the hologram.

Thus, when looking into the regenerated wavefront, the first object is visible but the object appears to be in there. If you move the point again, the position of the object changes, as if you were viewing a three-dimensional image. In addition, since the wavefront of the original object is reproduced, it easily interferes with the wavefront from a slightly deformed object to enhance the stereoscopic effect.

The holographic film has high industrial value as a decorative surface finish due to the beautiful interference pattern effect, and recently, as the design of furniture, architectural finishing materials, and electronic appliances for home appliances is becoming more luxurious, it is applied to the exterior surface of these products. As the importance of sheets grows day by day, the industry's demand for hologram films is expected to continue to increase.

However, at present, the hologram film has not been properly used in the industry as a decorative surface finishing material, the main reason is that the unit grid pattern of the hologram film is observed on the surface as shown in the dotted line of Figure 1, elevator door, fire door, This is because when used as a surface finish of a large product such as a refrigerator door, it is not satisfactory visually. For this reason, the hologram film is not used for industrial surface finishing materials such as home appliances, furniture, building walls, ceilings, etc., and is only used for small products for simple stationery.

The present invention has been proposed to solve this problem, by mixing a predetermined amount of metal chips in the adhesive layer laminated between the hologram film layer and the transparent coating layer by using the twinkle effect (twinkle) effect of the metal chip unit grid of the hologram film The purpose is to provide a surface finish in which the holographic pattern is formed so that the pattern disappears.

According to the holographic patterned surface finish according to the present invention, it is possible to suppress the occurrence of the unit grid pattern without reducing the interference pattern effect of the hologram can be used as various industrial surface finishes.

In order to achieve the above object, the holographic patterned surface finish material according to the present invention includes a lower ink layer, an aluminum deposition layer, an interference pattern formed hologram film layer, an adhesive layer, and a transparent coating layer formed of various patterns. In the surface finish made of, the adhesive layer is mixed with a metal chip size of 40 ~ 1500㎛ 0.5 ~ 5% of the total weight of the adhesive.

In addition, the metal chip is preferably mixed with one selected from aluminum, copper, silver. In addition, an upper ink layer having another pattern is stacked between the adhesive layer and the transparent coating layer in order to enhance a steric effect. In addition, an adhesive layer, a synthetic resin cushion layer, and an adhesive layer are sequentially attached to the lower surface of the lower ink layer.

Hereinafter, with reference to the accompanying drawings will be described in more detail with respect to the configuration of the surface finish formed with a holographic pattern according to the present invention.

Figure 2 is a cross-sectional view showing the basic configuration of the surface finish according to the present invention. Surface finish according to the present invention is the lower ink layer 10, aluminum deposition layer 20, the interference pattern formed hologram film layer 30, the adhesive layer 40 and the transparent coating layer 60 is formed of various patterns It is the same as that of the prior art in that they are laminated one by one.

The lower ink layer 10 forms a basic pattern of various shapes that are expressed in three dimensions by the interference fringe effect of the hologram. This pattern is expressed in the lower ink layer 10 as a design of an elevator door or building wall by transfer printing or gravure printing.

The aluminum deposition layer 20 is applied to stabilize the pattern formed on the lower ink layer 10, and allows the pattern of the lower ink layer 10 to be lightly reflected through a semi deposition method. In the case of the conventional aluminum deposition method, there is a problem of reducing the hologram effect when applying a two-component adhesive, and recently, a new aluminum deposition that solves this problem by depositing aluminum in powder form after a special coating treatment on the lower ink layer 10. Method has been developed. The aluminum deposition layer 20 of the present invention includes those made by this new technology aluminum deposition method.

The hologram film layer 30 allows the pattern made in the lower ink layer 10 to be three-dimensionally illuminated by using the interference fringe effect of the hologram described above. The brilliant visual effects of the holograms make the surface finish feel more luxurious, meeting the needs of the consumer.

The adhesive layer 40 is laminated by the roll coating method between the hologram film layer 30 and the top coating layer 60 to adhere both members. As adhesives, polyester, polyurethane, and polyacryl resins are generally used, and at least 1.0 kg / 2.5 cm of adhesion is required to be used as an industrial surface finish. Primer adjuvant may also be pre-treated or mixed to improve adhesion. According to the present invention, the unit grid pattern of the hologram film disappears by mixing a predetermined amount of the metal chip 45 in the adhesive layer 40, which will be described later.

The upper ink layer 50 is another pattern formed on the hologram film layer 30 to enhance the stereoscopic effect of the surface finish, and the method of forming the pattern may be either transfer printing or gravure printing. The glyph is overlaid on the hologram's interference fringe, making it more visually visible. The upper ink layer 50 is not necessarily included to form the surface finish, and is optionally included in consideration of the steric effect.

The transparent coating layer 60 is laminated on the top to prevent the surface of the finish from being damaged and is pressed onto the adhesive layer 40 or the upper ink layer 50 with a dry press roll through a dry laminating facility. The coating material should be a synthetic resin made of transparent or translucent material so that the pattern of the upper or lower ink layers 10 and 50 can be seen. Currently, polyester (PE) or PET [PET, Poly (ethylene terephthalate)] film is most commonly used. .

The most characteristic technical configuration of the present invention is to reduce the unit grid pattern of the hologram film by mixing 0.5 to 5% of the total weight of the adhesive with the metal chip 45 having a size of 40 to 1500 μm in the adhesive layer 40. As described above.

Since the reason for mixing the metal chip is to use the twinkle effect, the metal chip may be any one having a predetermined or more metallic luster. At present, experiments with high gloss metals such as aluminum (Al), copper (Cu), and silver (silver) prove only the fact that chips made of these metals have the effect of suppressing the unit lattice pattern of the hologram film of the present invention. However, the technical spirit of the present invention is, of course, not limited to this.

In addition, in order to achieve the effect of suppressing the unit grid pattern by the metal chip, the size and content of the mixed metal chip is very important. If the size of the metal chip is less than 40㎛, even if uniformly distributed in the adhesive layer 40, the twinkle effect is insignificant and does not show the unit grid pattern, and if the size of the metal chip exceeds 1500㎛, the adhesive layer 40 is It becomes thicker than necessary, and adhesive force falls. On the other hand, if the content of the metal chip is less than 0.5% relative to the total weight of the adhesive, the area of the twinkle effect is narrow and the unit grid pattern is revealed. If the content of the metal chip is more than 5%, the eyes are exposed due to the excessive twinkle effect. Not only will it lower the adhesive force of the adhesive layer 40.

Figure 3 shows another embodiment of a holographic patterned surface finish according to the present invention. The basic construction of the present invention, which consists of six layers, is so thin that the unevenness of the surface of the material remains exposed as long as it is not attached to a smooth surface, such as glass, to impair the visual feeling. The present embodiment is to form a cushion layer made of synthetic resin on the lower surface finish of the basic configuration to solve this problem.

To this end, an adhesive layer 70, a synthetic resin cushion layer 80, and an adhesive layer 90 are sequentially attached to the lower surface of the lower ink layer 10. The adhesive layer 70 is attached to the lower surface of the lower ink layer 10 in the same manner as the adhesive layer 40 of the basic configuration by a roll coating method, mainly polyester (PolyEster), polyurethane (PolyUrethane), PolyAcryl-based synthetic resins are used a lot, and more than 1.0kg / 2.5cm of adhesion is required.

The synthetic resin cushion layer 80 may be a polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polycarbonite (PC), PET (PET), polyolefin (Poly-Olefine), as long as it is a synthetic resin having a predetermined elastic absorptivity. All kinds of synthetic resin films such as) film can be used. As the film suitable for this synthetic resin cushion layer 80, the synthetic resin films described in Patent Application Nos. 1996-76514, 2000-44676, 2000-44677, and 2004-27561 filed by the present inventor can be used.

The adhesive layer 90 is an adhesive layer made to easily attach the surface finish according to the present invention to a material having high surface irregularities such as iron plate or wood, and any primers (adhesives) currently used industrially such as urethane primers are used. It is possible.

Comparing Figure 1 and Figure 4 it can be clearly seen the effect of the surface finish formed with a holographic pattern according to the present invention configured as described above. As shown in the red dotted line of Figure 1, in the conventional surface finish, the crisscross unit grid pattern is clearly visible, but in Figure 4 it can be seen that the unit grid pattern is significantly disappeared by the metal chip indicated by black dots. In FIG. 4, the size of the metal chip is slightly exaggerated to show the distribution of the metal chip. However, in the actual product, the size of the metal chip is minute and cannot be visually confirmed.

According to the present invention as described above, it is possible to suppress the generation of the unit grid pattern of the hologram film without damaging the three-dimensional feeling of the hologram itself can be used as an industrial surface finish material. Accordingly, by applying this to home appliances, furniture, building walls, etc., it is possible to secure the superiority of the design with respect to the existing surface finish.

Claims (4)

The lower ink layer 10, the aluminum deposition layer 20, the interference patterned hologram film layer 30, the adhesive layer 40, and the transparent coating layer 60, which have various patterns, are sequentially stacked on the surface finishing material. In The adhesive layer 40 has a holographic patterned surface finish, characterized in that the metal chip 45 of size 40 ~ 1500㎛ mixed 0.5 ~ 5% of the total weight of the adhesive. The surface finish of claim 1, wherein the metal chip is one selected from aluminum (Al), copper (Cu), and silver (Ag). The surface finish of claim 1, wherein the upper ink layer (50) having another pattern is laminated between the adhesive layer (40) and the transparent coating layer (60) to enhance a three-dimensional effect. According to any one of claims 1 to 3, wherein the lower ink layer 10, characterized in that the adhesive layer 70, the synthetic resin cushion layer 80 and the adhesive layer 90 is attached in order. Surface finish with holographic pattern.

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