JPH0355546B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for producing a vapor deposited product with a three-dimensional pattern, and more specifically, it relates to a method for manufacturing a vapor deposited product with a three-dimensional pattern. This invention relates to a method for manufacturing a vapor deposited product with a three-dimensional pattern or a perspective pattern created by a combination of the following.

``Prior Art and Problems'' Embossing has long been widely used as a method for adding three-dimensional patterns to paper, flooring materials made of plastic sheets, synthetic leather, etc. Embossing is generally performed by preheating a sheet-like material, applying a concavo-convex pattern using a molded roll engraved with a predetermined pattern, cooling it, and winding it up.

However, in conventional embossing, it is necessary to prepare embossed rolls with a predetermined number of patterns engraved on them, which results in high equipment costs, and the gloss of the embossed surface is usually uniform. Due to the technical constraints of roll forming, there is a limit to the degree of freedom of design patterns, as it is not easy to create an appearance with different gloss depending on the degree of gloss, subtle shapes of three-dimensional patterns, etc.
It is necessary to replace the molding roll every time the pattern changes, which inevitably leads to disadvantages in work efficiency, which is particularly fatal in the case of high-mix, low-volume production.

"Means for Solving the Problems" In view of the above-mentioned circumstances, the present invention has been made as a result of intensive research and has discovered a method of easily and inexpensively manufacturing a vapor deposited product with rich gradation by a printing method without the above-mentioned drawbacks. It is a completed invention.

That is, the present invention provides a mold release agent layer by extruding a thermoplastic resin having mold release properties on the surface of a printed sheet formed by printing a predetermined pattern on the surface of a synthetic resin sheet, and vapor-depositing the mold release agent layer on the surface of the mold release agent layer. The method of manufacturing a vapor-deposited product with a three-dimensional pattern is characterized in that the printing sheet is peeled off and removed after the vapor-deposited surface is superimposed and integrated with the base material.

In the present invention, the synthetic resin sheet on which the pattern is printed is not particularly limited as long as it has enough heat resistance to withstand the temperature at which a release agent layer is provided on the sheet, such as PBT, PET, etc. Examples include sheets (or films) of polyester, polyamide, polyimide, polysulfone, polyethersulfone, polyetheretherketone, polycarbonate, polyacetal, and polypropylene. Note that these sheets may be reinforced by adhering paper or the like as a backer.

The printing layer in the present invention is made by appropriately combining the amounts and colors of powders that can be used for printing, such as inks, pigments, metal powders, ceramic powders, metal oxides, etc. It is created by changing the particle size, shape, degree of dispersion, etc., and combining it with various levels of gloss and tone using known printing methods, and patterns can be created by changing the particle size, shape, dispersion degree, etc., and creating patterns, designs, characters, characters, symbols, matte tones, etc. There are no particular restrictions on the unevenness of the surface to be applied. Needless to say,
Inks, pigments, metal powders, ceramic powders, metal oxides, etc. Powder materials that can be used for printing, and binders used as adhesives for these materials are those that can withstand the temperature required to transfer the pattern to the release paper. It is necessary that

A release layer is provided on the surface of the printing sheet.
Examples of the release layer used in the present invention include poly4-methylpentene-1 (TPX), polypropylene, ethylene-propylene copolymer, and ethylene-propylene copolymer.
Tetrafluoroethylene copolymer (PETFE),
Thermoplastic resins having mold releasability such as tetrafluoroethylene-hexafluoropropylene copolymer (FEP), silicone resins, etc., and mixtures thereof with additives for imparting mold releasability are preferably used. . The thickness of the release layer is not particularly limited, but may be approximately 10 μm or less. The extrusion lamination method is suitable for forming the release layer on the printing sheet from the viewpoint of productivity and work efficiency.

A vapor deposition layer is provided on the surface of the release layer. Vapor deposition includes all vacuum processing processes such as sputtering and ion plating in addition to normal vacuum vapor deposition. Further, the vapor deposition material is not limited to metals such as aluminum, but also includes pigments, dyes (sublimation), and organic polymers such as "Parerin (registered trademark)" manufactured by UCC.

After the laminated sheet provided with the vapor-deposited layer as described above is integrated with the vapor-deposited surface on a base material, the printed sheet is peeled off and removed.

The base material used in the present invention is not particularly limited, and includes paper, cloth, sheets (films) of synthetic resins, synthetic resin foams, processed products, molded products, and the like.

The method of superimposing and integrating the laminated sheet onto the base material is not particularly limited, and examples thereof include an adhesive method, a hot melt method, an extrusion method, and the like.

In the case of extrusion, the resin for the base material is fed from one side and the laminated sheet is fed from the other side, and after the vapor-deposited surface of the laminated sheet and the resin for the base material are superimposed and integrated,
By peeling and separating the printed sheet after cooling, it is possible to obtain a vapor-deposited product in which the pattern of the printed sheet is transferred to the surface of the vapor-deposited layer. At this time, only the particle pattern based on the particles constituting the printed ink, etc. is applied to the substrate, and the fundamental difference from the hot stamping method is that the printing ink, etc. is not directly transferred. be.

The method for imparting a three-dimensional pattern according to the present invention can be used in combination with conventional embossing, and in this case, a micro and delicate three-dimensional effect due to the glossiness of the present invention, and a macro and dynamic three-dimensional effect due to the perspective and unevenness of the embossing process. This makes it possible to create unique shapes that have both a sense of perspective and a sense of perspective, and it is possible to provide an even greater variety of patterns.

The vapor-deposited product with a three-dimensional pattern produced by the present invention is hard to be scratched because the surface is protected by a layer of mold release agent, and can be used for wallpaper, ceiling materials, picture frames, tea utensils, Buddhist utensils, in-mold sheets, etc. In addition, it is suitable for light reflective stickers, stickers, labels, etc.

"Example" The present invention will be described below with reference to Examples, but the present invention is not limited thereto in any way.

Example A gold leaf-like folding screen paper obtained by joining 15 cm square brass foils made by a conventional method onto Torinoko paper and adhering them with lacquer was photoengraved and printed on a 100 μm thick polyester sheet. After coating the printing surface of this printing sheet with a silicone mold release agent at 0.2 g/m ² , gold-colored aluminum vapor deposition treatment was performed by a conventional method. Next, Torinoko paper was overlapped and integrated with lacquer on the vapor-deposited surface, and then the printed sheet was peeled off to obtain a gold leaf-like folding screen having an external pattern similar to that produced by the conventional method. This method had much higher productivity than the conventional method, and the quality of the product was excellent.

"Operations/Effects" As mentioned above, according to the present invention, it is only necessary to prepare a printing sheet instead of the conventional embossed roll, resulting in a significant reduction in equipment costs. Compared to engraving, it is much easier and more versatile, dramatically increasing the freedom of patterns, and contributing to the improvement of cultural life. By combining it with conventional embossing, which enables a sense of perspective, a unique pattern is created that combines the micro and delicate three-dimensional effect and perspective created by the present invention with the macro and dynamic three-dimensional effect and perspective created by embossing. Patterns can be changed by simply replacing the printing sheet, making it particularly suitable for high-mix, low-volume production.Compared to traditional embossing methods, the base material and release layer can be thinner, making it possible to The cost has been drastically reduced and it is economically advantageous.For folding screens and sliding doors, etc., a method is used in which multiple sheets of metal foil are joined together, which requires a high level of skill and is extremely low in productivity. , it is possible to easily produce large quantities of metal-deposited sheets with the same appearance as conventional spliced metal foils, and it is possible to provide inexpensive folding screens and sliding doors without requiring a high level of skill. It has many advantages such as

Claims (1)

[Claims] 1. A mold release agent layer is provided by extruding a thermoplastic resin having mold release properties on the surface of a printed sheet formed by printing a predetermined pattern on the surface of a synthetic resin sheet, and the surface of the mold release agent layer is 1. A method for producing a vapor-deposited product with a three-dimensional pattern, characterized in that the vapor-deposited surface is superimposed on and integrated with a base material, and then the printed sheet is peeled off and removed. 2. Extrude a mold release agent layer onto the surface of the printing sheet, perform vapor deposition treatment on the surface of the mold release agent, extrude the base resin onto the vapor deposition treated surface to overlap and integrate, and then peel and remove the printing sheet. A manufacturing method according to claim 1.