JPH11342700A - Decorative pattern sheet and synthetic resin molding with decorative pattern - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance an added value of a decorative pattern sheet by providing a beautiful decoration at a synthetic resin molding for embedding a gold foil pattern in a surface and the sheet used for its manufacture. SOLUTION: The metal foil pattern sheet 1 comprises a transparent resin film 3, a metal foil pattern layer 7 formed of a metal foil 5 of a predetermined shape adhered to a rear surface of the film 3 via a transparent adhesive layer 4 and an ink layer 6 printed on a part except the foil, and a flexible protective film 8 formed by coating a surface of the layer 7 with a thermoplastic synthetic resin liquid. Further, the sheet 1 also comprises an opaque ink layer 6 printed partly on a rear surface of the film 3, the metal foil 5 of an arbitrary shape adhered to the layer 4 coating near a part having no ink layer 6, and an opaque flexible protective film 8 provided on a surface of the foil 5. The synthetic resin molding integrates the sheet 1 with a surface of a body made of a synthetic resin by engaging it with a mold at the time of molding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet having a decorative pattern in which a metal foil or a metal plating layer is partially embedded, and a synthetic resin molded article in which the sheet is integrated on the surface.

[0002]

2. Description of the Related Art One of the lacquer crafts is a so-called "silver carving". This is made by hand digging on the lacquered surface and burying metal foil in the notch. Wood products carved in gold are brilliant, profound and durable, and have been treated as valuables since ancient times.

On the other hand, a method of painting a synthetic resin molded product called insert molding (inject-o-pattern)
It has been known. In this method, a transparent film on which a pattern is printed in advance by gravure printing is inserted into a mold at the time of injection molding, and painting is performed simultaneously with molding. This method is used for tableware, stationery, household goods, car interior parts, etc., and can be painted simultaneously with molding to reduce costs. It has the advantages of being excellent in abrasion and being excellent in water resistance because no adhesive is used. According to this method, it is possible to obtain an inexpensive synthetic resin molded article with a variety of multicolor printings. be able to.

[0004]

However, the sculpture of gold sculpture requires a high degree of skill in its production, has a long production time, is limited in design from a technical point of view, and has a problem that the product price is high. . On the other hand, as a synthetic resin molded product by an integrated manufacturing method, a molded product having a metal foil pattern or a metal plating pattern and having high added value has not yet been known.

[0005] It is a first object of the present invention to provide a decorative pattern sheet having a metal foil or a metal plating layer whose surface is protected by a transparent film, and a synthetic resin molded product obtained by integrating the decorative pattern sheet. It is a second object of the present invention to provide a high-value-added synthetic resin molded product at a low cost by providing the following.

[0006]

The gold foil pattern sheet 1 according to the first aspect of the present invention comprises a transparent thermoplastic synthetic resin film 3 and a metal foil 5 having a predetermined shape adhered to a back surface thereof with a transparent adhesive layer 4. A metal foil pattern layer 7 formed by an ink layer 6 printed on portions other than the metal foil, and a flexible protective film 8 formed by applying a thermoplastic synthetic resin liquid to the surface thereof.
Are provided.

[0007] Transparent synthetic resin films include polyvinyl acetate, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polyvinyl acetal, polystyrene, polymethacrylate, methyl polyacrylate, polyethylene, polypropylene, tetrafluoroethylene, acrylonitrile. And a thermoplastic synthetic resin film made of ABS resin, polyether resin, polycarbonate, polyamide, polyester, or the like. Also, if a hard coat layer 2 such as an acrylic resin is provided on the surface of a thermoplastic synthetic resin film,
The durability of the film 3 can be increased.

The gold foil pattern sheet 1a according to the second aspect is applied to a transparent thermoplastic synthetic resin film 3, an opaque ink layer 6 printed on a part of the back surface thereof, and a portion having no ink layer and its vicinity. Metal foil 5 of an arbitrary shape adhered by the transparent adhesive layer 4 formed as described above, and a flexible protective film 8 formed by applying an opaque thermoplastic synthetic resin liquid to the surfaces of the ink layer 6 and the metal foil 5. Are provided.

The gold foil pattern sheet 1b according to the third aspect is deposited on a transparent thermoplastic synthetic resin film 3, an ink layer 6 printed on a part of the back surface thereof, and an ink layer and a transparent film surface having no ink layer. A plated metal plating layer 9,
And a flexible protective film 8 formed by applying an opaque thermoplastic synthetic resin liquid to the surface of the metal plating layer.

A fourth aspect of the present invention is the decorative pattern sheet according to the first, second or third aspect, wherein the transparent thermoplastic synthetic resin film 3 is a polyester film.

The synthetic resin molded article having the decorative pattern according to the fifth aspect is a synthetic resin main body and a decorative pattern sheet integrated with the surface of the main body at the time of molding. , 1b. As the synthetic resin for the main body, resins suitable for injection molding, such as polyvinyl chloride, polycarbonate, acrylic resin, polyethylene terephthalate, polystyrene, acrylonitrile styrene resin, and ABS resin can be used.

[0012]

The decorative pattern sheet according to claim 1 is a metal foil.
And the metal foil pattern layer 7 formed by the ink layer 6 is protected in a sandwich shape by the transparent film 3 and the flexible film 8, so that the work can be performed without directly touching the metal foil 5 and the ink layer 6. And it is very easy to handle. Also, after cutting to the desired size with scissors or the like, pasting on other wooden, metal or synthetic resin molded products,
It can be integrated with a synthetic resin body by inserting it into a mold before molding the synthetic resin. In particular, the thermoplastic synthetic resin constituting the transparent film and the flexible film is softened and adhered to the surface of the mold by the high-temperature resin liquid extruded during molding, and the surface of the flexible film is melted to be synthesized. Welded and integrated with resin body. Further, since the metal foil pattern layer 7 is formed by attaching the metal foil 5 only to necessary portions, the amount of the metal foil used can be reduced. Since the metal foil pattern sheet 1 has the metal foil pattern layer 7 formed of the metal foil 5 having a predetermined shape and the other ink layer 6, the metal foil pattern sheet 1 can be attached to a transparent panel board and viewed from both sides.

The decorative pattern sheet 1a according to the second aspect of the present invention has a function of the ink layer 6 printed on a part of the back surface of the transparent film 3 and a transparent adhesive applied to a part without the ink layer and its vicinity. Since the metal foil pattern is formed by the amorphous metal foil 5 bonded by the layer 4, it is only necessary to attach the metal foil to the applied adhesive layer, and the workability can be remarkably improved.

The gold foil pattern sheet 1b according to the third aspect has a metal plating layer 9 formed by a vapor deposition plating method on a portion having no ink layer.
Formed, the adhesive layer for bonding the metal foil is not required.

According to the fourth aspect of the present invention, since the polyester film is used as the transparent film, the decorative pattern sheet 1 has high tensile strength and impact strength, is tough, and is excellent in water resistance, chemical resistance and transparency. 1a and 1b can be obtained.

The synthetic resin molded article having a gold foil pattern according to claim 5 is one in which the decorative pattern sheets 1, 1a, 1b are integrated on the surface of the main body at the time of molding, and does not use an adhesive. Therefore, it is hard to be peeled off and can be used for a molded article for water use. The decorative pattern sheets 1, 1a, and 1b that decorate the surface of the main body protect the metal foil, the metal plating layer, and the ink layer with the transparent film 3, so that a durable decorative pattern is formed on the surface of the main body. Can be provided at a low cost. Further, the decorative pattern sheet according to claim 1, 2 or 3, when the metal foil or the metal plating layer is viewed from the transparent film side, it looks as if the gold foil is embedded in a part, and if it is adhered to the wooden body, it becomes a sculpture. A molded article having a similar appearance can be obtained.

[0017]

FIG. 1 is an enlarged view showing a first embodiment of the present invention. The gold foil pattern sheet 1 of the present embodiment is
A polyester film (HYNT.CHC hard coat, manufactured by Higashiyama Film Co., Ltd.) 3 having a hard coat layer 2 of 3 to 5 μm acrylic resin is provided on the surface thereof. The gold foil 5 is adhered by an adhesive layer 4 made of a colorless and transparent epoxy resin formed on the back surface of the polyester film 3. In a region where the gold foil 5 is not adhered, an ink layer 6 of a multicolor pattern is formed by screen printing. The ink layer 6 is superimposed on the contour of the gold foil 5 and printed so that no white portion remains at the boundary between the gold foil and the ink layer. The gold foil pattern layer 7 is formed by the gold foil 5 and the ink layer 6, and the flexible protective film 8 is formed by a transparent acrylic synthetic resin paint applied to the surface.

The printing ink used for printing a multicolor pattern on the polyester film 3 is an acrylic resin as a binder, cyclohexanone 35 to 40%, xylol 10 to 20%, methyl isobutyl ketone 10 to 20%.
And the like are used as a mixed solvent, and are adjusted by adding a dye or a pigment, a stabilizer, and the like. Apply this printing ink to T-15
About 22 m ² / Kg is deposited on a 0 mesh screen plate and dried at 60 ° C. for 30 to 60 minutes to completely remove the solvent. The gold foil pattern sheet 1 having such a structure is bonded to a molded product made of wood, metal or synthetic resin with the hard coat layer side facing up, or inserted into a mold at the time of injection molding and integrated with the main body at the time of molding. To As the thermoplastic synthetic resin applied to the surface of the gold foil pattern layer 7, that is, a flexible film, the same kind or easily integrated with the injected synthetic resin is used. The gold leaf pattern sheet 1 according to the first embodiment can be bonded to a transparent plate such as a glass plate with an adhesive for forming a transparent film, whereby a panel plate having a gold leaf pattern seen from both sides can be obtained.

FIG. 2 shows a second embodiment of the present invention. The gold foil pattern sheet 1a of the present embodiment has an ink layer 6 formed by partially printing a printing ink on the back surface of the polyester film 3, and a transparent film is formed on a portion without the ink layer and on the periphery thereof. There is an adhesive layer 4,
The irregular gold foil 5 is lined with this adhesive layer. Therefore, there are a portion where the ink layer 6 and the gold foil 5 largely overlap and a portion where the ink layer 6 and the gold foil 5 slightly overlap, and an adhesive layer where the gold foil is not bonded. A flexible protective film 8 is formed of an opaque acrylic synthetic resin paint applied to the surfaces of the ink layer 6, the gold foil 5, and the adhesive layer 4. The gold foil pattern sheet 1a is cut into a predetermined shape with scissors or the like, and is coated with an adhesive on a flexible protective film and adhered to a molded product made of wood, metal, or synthetic resin, or inserted into a mold at the time of molding. It can be integrated with the main body. The gold foil pattern sheet 1a has a flexible film formed of an opaque paint in order to conceal the irregularly shaped gold foil, so that the gold foil pattern can be seen only from the transparent film side.

FIG. 3 shows a third embodiment of the present invention. The gold-plated pattern sheet 1b of this embodiment is obtained by partially printing the printing ink on the back surface of the polyester film 3 to form the ink layer 6, and the ink layer and the portion without the ink layer (the portion where the transparent film is exposed) ) Is provided with a gold plating layer 9 by a vapor deposition plating method. As the vapor deposition plating method, gold is heated and evaporated in a vacuum, a polyester film on which a pattern is printed is supplied while cooling the back surface, and the generated gold atoms are fixed to the ink layer and the exposed transparent film surface. A method (vacuum deposition method) can be adopted.

FIGS. 4 to 6 show a method of manufacturing the gold foil pattern sheet of the first embodiment. A mask 12 having a plum-shaped through hole 11 is placed on the back surface with the surface (front surface) on which the hard coat layer is formed, and a transparent epoxy resin adhesive 13 is sprayed with a spray to peel off the mask 12. . Next, the epoxy resin adhesive layer 4 is covered with an irregular gold foil 14, and after curing, the gold foil is peeled off to remove an excess part.
The remaining gold foil 5 forms a plum-shaped pattern. Next, a shielding layer 15 is provided on a portion of the polyester film which comes into contact with the gold foil 5.
Is placed thereon, and the printing ink is pressed with a squeegee to solidify the area around the gold foil except for the gold foil portion. Normally, in screen printing, printing is performed so that a white background does not appear at the border of a pattern, so that an ink layer is formed on the outline of the gold foil. Gold leaf 5 and ink layer 6 after drying
A transparent acrylic coating solution is coated on the upper surface of the gold foil pattern layer 7 formed by the above method, and dried and cured to form a flexible protective film 8.

FIGS. 7 to 9 show a synthetic resin molded article having a decorative pattern according to the present invention and a method for producing the same. The molded product is obtained by attaching the gold leaf pattern sheet 1 of the first embodiment to an ABS resin main body 18. After attaching the gold leaf pattern sheet 1 to the inner peripheral surface of the female mold 21, the male mold 22 is closed. The ABS resin liquid is injected into the cavity 23 to be integrally molded. The gold foil pattern sheet 1 is softened by the injected high-temperature ABS resin liquid and completely adheres to the female mold 21 without wrinkling, and a part of the flexible film of the gold foil pattern sheet is melted to form the ABS resin sheet. It is welded to the surface of the main body 18.
Although the molded product of the present embodiment is a switch cover, and a gold foil pattern sheet is stuck only on the upper surface, it can be welded without wrinkles not only on the upper surface but also on the surface of the cover including the four side surfaces.

A molded article made of a transparent synthetic resin is manufactured in advance, and a sheet obtained by attaching an adhesive to the gold foil pattern sheet of the first embodiment is inserted into a female mold of the molded article, and the molded article is re-formed with a male. By fitting and heating the mold, the gold foil pattern sheet can be bonded to the surface of the molded product.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a gold foil pattern sheet according to a first embodiment.

FIG. 2 is a cross-sectional view of a gold foil pattern sheet according to a second embodiment.

FIG. 3 is a cross-sectional view of a gold-plated pattern sheet according to a third embodiment.

FIG. 4 is a perspective view showing a method of manufacturing an adhesive layer.

FIG. 5 is a perspective view showing a method for forming a metal foil.

FIG. 6 is a perspective view showing a printing method.

FIG. 7 is a perspective view of a synthetic resin molded product having a gold foil pattern.

FIG. 8 is a sectional view showing a mold of a synthetic resin molded product.

FIG. 9 is a cross-sectional view of an injection-molded synthetic resin molded product.

[Explanation of symbols]

 1,1a, 1b Gold leaf pattern sheet 2 Hard coat layer 3 Polyester film 4 Adhesive layer 5 Metal foil 6 Ink layer 7 Gold leaf pattern layer 8 Flexible protective film 9 Gold plating layer 18 Main body

Claims (5)

[Claims] 1. A transparent thermoplastic synthetic resin film (3)
And a metal foil pattern layer (7) formed of a metal foil (5) of a predetermined shape adhered to the back surface thereof with a transparent adhesive layer (4) and an ink layer (6) printed on portions other than the metal foil. ) And a flexible protective film (8) formed by applying a thermoplastic synthetic resin liquid to the surface of the decorative pattern sheet. 2. A transparent thermoplastic synthetic resin film (3)
And an opaque ink layer printed on a part of the back side (6)
And the metal foil (5) adhered by the transparent adhesive layer (4) applied to the area without the opaque ink layer and its vicinity, and the opaque heat on the surface of the ink layer (6) and the metal foil (5) Flexible protective film formed by applying a plastic synthetic resin liquid
(8) A decorative pattern sheet, comprising: 3. A transparent thermoplastic synthetic resin film (3).
And an ink layer (6) printed on a part of the back surface, a metal plating layer (9) deposited on the transparent film surface without the ink layer and the ink layer, and opaque heat on the surface of the metal plating layer. A flexible protective film (8) formed by applying a plastic synthetic resin liquid,
Decorative pattern sheet. 4. The decorative pattern sheet according to claim 1, wherein the transparent film (3) is a polyester film. 5. A body comprising a synthetic resin body, and the decorative pattern sheet according to claim 1 integrated on the surface of the body at the time of molding. A synthetic resin molded product having a decorative pattern.