JP3141467B2 - Method for manufacturing decorative material having transparency - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a special decorative material,
Specifically, the pattern transferred to the transparent substrate or sheet is the same as or different from that seen from the substrate or sheet side and the one seen from the transfer side, and opposite to each other. You can observe only the pattern on the front side without being interfered by the pattern of
Further, the present invention relates to a method for manufacturing a decorative material, characterized in that a pattern on the front side looks as if it has disappeared depending on the presence or absence or intensity of a light source from the back surface.

[0002]

2. Description of the Related Art A decorative material that has a different pattern on the front and back surfaces with a transparent or translucent base material or sheet as a boundary, and that the pattern on the front side disappears when there is light from the back surface has been conventionally used. It is used as decorative materials such as glass windows and interior lighting fixtures and daily necessities because of its design, and it can be used for a wide range of applications in the future.

[0003] However, as the manufacturing method, for example, the following methods are known.

[0004] A transparent or semi-transparent plastic substrate is coated with a resin having a low adhesive strength to the substrate on the plastic substrate, such as a linear negative or a positive plain net-like fine pattern layer;
A layer having an adhesive force to the substrate and not less than an adhesive force to the fine pattern layer, a white to light-colored ink layer having an adhesive force to the ink layer, a design pattern, etc. By providing an ink layer by screen or gravure or offset printing and separating the resin from the substrate by chemical or mechanical treatment.

When a pattern is transferred to a transparent or translucent substrate to be transferred using a transfer sheet, the pattern is formed on the base film of the transfer sheet, and the portion not requiring transfer is formed as a film-like release layer. A method in which the fine pattern is appropriately printed, a pattern or a solid pattern is superposed thereon, printed, and finally, the excess film is removed.

A method of laminating and printing a picture while registering in a fine pattern.

[0007] A method in which a transfer sheet on which a pattern or solid pattern is printed while imparting appropriate concealing properties is transferred by a transfer roll having the fine pattern-like unevenness.

[0008] On the base film of the transfer sheet, a portion which is not necessary as a pattern when transferred to the transparent or translucent plastic substrate is printed with a water-soluble ink, and a picture or a solid pattern is overlaid thereon. A method of printing, and finally washing off unnecessary parts with water.

There is a method of printing a picture or a solid pattern, providing an adhesive layer on the entire surface, concealing unnecessary portions with a reactive curable ink, and preventing transfer of unnecessary portions.

On the other hand, with respect to a method of manufacturing a decorative material having a see-through property by forming a convex shape on a substrate, a desired unevenness such as dots or grids is formed on one side of a transparent base material, and screen printing is performed on the convex portion. A method of sequentially forming each layer by a printing method such as dry offset printing or the like is known in JP-A-64-88580.

[0011]

However, a method in which a fine pattern layer of a resin having a low adhesive strength, an adhesive layer, a picture, and the like are provided on a substrate in advance and the resin is separated from the substrate by a chemical or mechanical treatment. However, not only the workability is poor, but also the drawback that the stability of the pattern is poor.

In a method of printing a fine portion that does not require transfer on a base film, printing a pattern or a solid pattern on top of it, and finally removing the excess film, the workability is poor and the defect rate is low. Was higher.

The method of laminating and printing a picture while registering it in a fine pattern requires a high level of precision in the positioning accuracy of each layer, and it is difficult to prevent the picture from sticking out.

In the transfer method using a transfer sheet with a transfer roll having fine pattern irregularities, when only the pattern portion is heated and pressurized, the influence is easily spread to the periphery of the transfer foil, and the reproducibility of the pattern is reduced. I was

In a method of printing unnecessary portions on a base film of a transfer sheet with a water-soluble ink, printing a pattern or a solid pattern thereon, printing the unnecessary portions, and finally, washing the unnecessary portions with water is a method of washing with water. The process at the time is difficult, and a means for preventing the pattern or solid pattern to be removed from re-adhering to other parts is required. In addition, workability is poor because of the wet process.

In a method of printing a picture or a solid pattern and providing an adhesive layer on the entire surface, the unnecessary portions are concealed with a reactive curable ink, and the unnecessary portions are not transferred. The workability in the process of performing the process becomes a problem. In addition, workability is poor because of the wet process.

In the method disclosed in Japanese Patent Application Laid-Open No. 64-88580, since the substrate has irregularities, it is not possible to determine the focal point of the alignment mark as a flat surface. In addition, workability is poor because of the wet process.

An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and an object of the present invention is to provide a decorative material having good workability and good design.

[0019]

SUMMARY OF THE INVENTION In a method of manufacturing a decorative material having a see-through property, the present invention relates to a transparent or translucent transparent fine pattern such as a net, a dot or a stripe which is formed in a convex shape. On the substrate to be transferred, a transparent release varnish layer on the base film, a concealing pattern layer in which a pattern layer is laminated on one or both of the upper and lower sides of the solid concealing layer, and a transfer foil in which an adhesive layer is laminated in this order, The above problem was solved by transferring the material onto the substrate to be transferred in a desired fine pattern by overlapping and pressing the substrate.

[0020] In particular, as described in claim 2, the solid hiding layer comprises:
The effect is remarkable when a solid ink layer, a vapor deposition layer, and a solid ink layer are used. This is because the solid ink layers are separated from each other because the vapor deposition layer is provided in the middle, and no show-through of color occurs.

FIG. 1 shows an embodiment of the transfer foil of the present invention. The transfer foil is formed on a base film 1 such as a polyester film, and in some cases, a polypropylene film, a polyethylene film, a polyphenylene sulfide film, or a nylon film. A transparent release varnish layer 2 is provided on the entire surface of the base film 1 with a low binder such as an acrylic resin ink. On the release varnish layer 2, the first
By sequentially providing the picture layer 3, the solid concealing layer 4, and the second picture layer 5, the concealing picture layers are sequentially provided. However, either the first pattern layer 3 or the second pattern layer 5 may be omitted depending on the application.

The first picture layer 3, the solid concealing layer 4, and the second picture layer 5 are usually used for transfer and have good concealing properties, such as acrylic, chlorinated rubber, vinyl chloride, and vinyl acetate. System, vinyl chloride-vinyl acetate copolymer system, urethane system, polyester system and the like.

The first picture layer 3 is provided on the entire surface or a part of the release varnish layer 2, and the second picture layer 5 is provided on the entire or part of the solid concealing layer 4, by gravure printing, offset printing, screen printing, or the like. It is provided by a method such as printing, electrostatic printing, ink jet or the like, and the design is completely arbitrary, such as characters and patterns.

An adhesive layer 6 is provided on the second picture layer 5 if it exists, and on the solid concealing layer 4 if it does not.
The adhesive layer 6 varies depending on the base material to be transferred, but is generally an acrylic, urethane, vinyl chloride, polyester, ethylene vinyl acetate, chlorinated polypropylene resin, or the like. Thereby, the transfer foil 7 is obtained.

FIG. 2 shows an embodiment of the substrate 8 to be transferred according to the present invention. As the substrate to be transferred, polystyrene, AS, ABS, polyvinyl chloride, acrylic, polyethylene, polyethylene terephthalate, polypropylene, Transparent or translucent materials such as polycarbonate, polyacrylonitrile, and glass can be used.

The desired fine pattern 9 is convexly formed on the substrate to be transferred.
Can be obtained by mechanically cutting or chemically treating, or, in the case of a plastic substrate, by providing a pattern in a mold at the time of injection molding. Either one may be adopted.

FIG. 3 is a schematic diagram of the present manufacturing process. The transfer foil 7 and the base material 8 to be transferred are overlapped so that the adhesive layer 6 of the transfer foil 7 and the fine pattern 9 of the base material 8 to be transferred face each other as shown in the figure. By peeling 1, a decorative material having transparency can be obtained.

At this time, pressing may be performed only by pressure, but by using heat together, transfer efficiency and yield can be improved. Further, the press method may be circular pressure flat pressure. The peeling of the base film 1 may be performed immediately after the pressing or in a post-process.

[0029]

[Function] If the substrate to be transferred has a convex shape, even if the transfer foil is pressed from above, only the substrate of the convex portion and the transfer foil of the portion sandwiched between the press rolls are actually pressed. And only that portion is bonded by the adhesive layer. Since pressure is not applied to other parts, the adhesive layer does not work and remains on the base film.

[0030]

EXAMPLE As the transfer foil, the structure shown in FIG. 1 was used, and a transfer foil was prepared by using an all-layer acrylic resin as the resin to be used.
When it was superposed on an acrylic transparent resin plate having a fine pattern as shown in FIG. 3 and transferred by a roll transfer machine at a roll temperature of 220 ° C. and a transfer speed of 4 M / min, a decorative material having a high design property and a high transparency could be obtained. .

As shown in FIG. 1, a transparent release varnish layer 2 made of an acrylic resin ink is provided on the entire surface of an acrylic resin base film 1. On the release varnish layer 2, a first pattern layer 3 made of an acrylic resin, a solid concealing layer 4 made of an acrylic resin, and a second pattern layer 5 made of an acrylic resin are sequentially provided to form a concealed picture layer.

At this time, the first picture layer 3 and the second picture layer 5 were provided with a picture by gravure printing on the whole or a part of the solid concealing layer 4. An acrylic adhesive layer 6 is provided on this, and a transfer foil 7 is obtained.

FIG. 2 shows that a desired fine pattern 9 having a convex surface is formed by using transparent acrylic as a substrate to be transferred according to the present invention.

FIG. 3 is a schematic view of the present manufacturing process. The transfer foil 7 and the base material 8 to be transferred are overlapped so that the adhesive layer 6 of the transfer foil 7 and the fine pattern 9 of the base material 8 to be transferred face each other as shown in the figure. By peeling 1, a decorative material having transparency can be obtained.

At this time, the pressing may be performed only by pressure, but by using heat in combination, the transfer efficiency and the yield can be improved. Further, the press method may be circular pressure flat pressure. The peeling of the base film 1 may be performed immediately after the pressing or in a post-process.

[0036]

By providing a convex fine pattern on the substrate to be transferred in advance, special processing and post-transfer processing can be omitted on the transfer foil, and the production process can be stabilized. Was.

The method for producing a decorative material having transparency using the transfer foil of the present invention is effective for shading transparent or translucent base materials such as partition panels, window glasses, doors, etc., and for decoration and advertising. It can be widely used for improving the design of lighting fixtures and the like, and for transferring and painting other miscellaneous goods. Further, since gravure printing is possible, gradation expression can be performed, and a product having a high design effect can be obtained.

Further, since it is a transfer material, it can be developed with high precision, quickly, inexpensively, and in a wide range of applications as compared with the conventional method of producing a decorative light-shielding panel.

[0039]

[Brief description of the drawings]

FIG. 1 is a sectional view of a transfer foil used in the present invention.

FIG. 2 is a perspective view of a substrate to be transferred used in the present invention.

FIG. 3 is a schematic sectional view of a pressing step of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 base film 2 release varnish layer 3 first pattern layer 4 solid concealing layer 5 second pattern layer 6 adhesive layer 7 transfer foil 8 transfer substrate 9 fine pattern 10 press roll

────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yasuyuki Naniuchi Examiner Hiroshi Akutsu within Toppan Printing Co., Ltd. 1-15-1 Taito, Taito-ku, Tokyo (56) References JP-A-64-88580 (JP, A) JP-A-2-162088 (JP, A) JP-A-2-113000 (JP, A) JP-A-64-5899 (JP, A) JP-A-3-169628 (JP, A) (58) Survey Field (Int.Cl. ⁷ , DB name) B44C 1/17 B41M 3/12

Claims (2)

(57) [Claims] In a method for producing a decorative material having a see-through property, a transparent or translucent transfer-receiving substrate in which a desired fine pattern such as a net, a dot or a stripe is formed in a convex shape is provided.
A transparent peeling varnish layer on the base film, a concealing pattern layer in which a pattern layer is laminated on one or both of the top and bottom of the solid concealing layer, and a transfer foil in which an adhesive layer is sequentially laminated on the transferred substrate. A decorative material having a see-through property, wherein the decorative material is transferred to the substrate to be transferred in a desired fine pattern by pressing. 2. The method according to claim 1, wherein the solid concealing layer comprises a solid ink layer, a vapor-deposited layer, and a solid ink layer.