JP2003291270A - Decorative foil sheet for game machine and method for manufacturing it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an etching foil sheet for a game machine in which only aluminum deposit layer is an alkali-soluble component when etching is performed and a delicate picture pattern can be simultaneously applied with a plurality of metallic colors such as gold and silver by one etching process, a decorative foil sheet using this and a method for manufacturing it. <P>SOLUTION: In the etching foil sheet 1 for the game machine on which a decoration is applied, a transparent first base material sheet 2 is used, and a coloring layer 3, a pressure-sensitive adhesive layer 4, a transparent second base material sheet 5 and the aluminum deposit layer 6 are successively formed on the top face of the first base material sheet 2. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an etching foil sheet for a game machine, a decorative foil sheet using the same, and a manufacturing method thereof.

[0002]

2. Description of the Related Art Usually, a plurality of designs are printed on an etching foil sheet of a gaming machine such as a slot machine or a pachinko machine or a panel installed in the gaming machine, and various colors such as red and blue are printed on these designs. It has been subjected. Further, in particular, in the case of a big hit or a medium hit, a metallic color such as gold or silver having gloss is applied to a part of the design in order to give a visual stimulus to the player.

When a glossy gold color is printed on a foil sheet or panel of a game machine, a transparent yellow ink is gravure-printed on a transparent film substrate to form a colored layer, and a silver layer is formed on the entire upper surface of the colored layer. Has been proposed, in which aluminum is vapor-deposited, a protective layer for the vapor-deposited layer is further formed thereon, and the colored layer, vapor-deposited layer and protective layer are alkali-soluble (Japanese Patent No. 2812354).
issue). In this etching technique, by using an alkali-soluble coloring layer, vapor deposition layer, and protective layer, all the portions of the vapor deposition layer that overlap with the vapor deposition layer are removed at the same time, and the portions other than those removed by etching are colorless. Only a transparent sheet is used, and decorative printing is performed on it. On the other hand, when applying a glossy silver color, colorless and transparent gravure printing was performed on the film base material, aluminum vapor deposition was directly applied on the film base material, and the metallic silver color of the aluminum vapor deposition was transmitted to the film. .

[0004]

However, in the method described in the above-mentioned patent publication, the colored layer is formed on the entire upper surface of the substrate by gravure printing with a roll, and the vapor deposition layer is further formed on the entire upper surface and wound on the roll. Since it is rotated, a single color metallic color (gold etc.) is obtained in the part where the colored layer remains, and ordinary decorative printing is applied to the other colorless and transparent parts. No metallic color could be applied. Also, when applying multiple metallic colors (gold, silver, etc.) on a sheet, once the metallic color (gold) is formed, the etched colorless and transparent part is again metal-deposited to form the metallic color (silver). This required a lot of trouble and cost.

Further, since such a colored layer is formed so as to be easily removed by alkali etching, there is a problem in that the adhesion to the base material sheet, that is, the bite is poor.

Further, it is necessary to provide an alkali-soluble protective layer on the vapor-deposited layer before masking by etching treatment, which causes a problem of a large number of manufacturing steps.

On the other hand, when a thermal transfer foil is used, the solvent resistance of the vapor deposition layer is poor and subsequent printing becomes difficult, and when the printing area is large, there is a drawback that fly and dropout easily occur. there were.

Therefore, an object of the present invention is to use only an aluminum vapor-deposited layer as an alkali-soluble component during etching, and to simultaneously apply a delicate pattern with a plurality of metallic colors such as gold and silver in a single etching step. An object is to provide an etching foil sheet for a game machine, a decorative foil sheet using the same, and a manufacturing method thereof.

[0009]

In order to solve the above-mentioned problems, an etching foil sheet for a gaming machine according to the present invention is an etching foil sheet for a gaming machine that is decorated, and is a transparent first base material sheet. A colored layer, an adhesive layer, a transparent second substrate sheet and an aluminum vapor deposition layer are sequentially formed on the upper surface of the first substrate sheet.

In the etching foil sheet of the gaming machine of the present invention, a transparent yellow layer may be printed as the coloring layer on the portion to be colored with gold, and a colored layer may not be printed on the portion to be colored with silver.

In the decorative foil sheet of the present invention, the aluminum vapor-deposited layer is removed by etching from the etching foil sheet, leaving a necessary portion, and decorative printing is performed on the portion where the aluminum vapor-deposited layer is removed. It is characterized by being applied.

The decorative foil sheet of the present invention can be a panel installed in a gaming machine by adhering a panel plate to the lower surface of the first base material sheet via an adhesive layer.

Further, in the method for producing a decorative foil sheet of the present invention, a colored layer is sheet-fed printed on the upper surface of a transparent first substrate sheet, and then the upper surface of the first substrate sheet subjected to the sheet-fed printing. Through the adhesive layer, a transparent second base material sheet having an aluminum vapor deposition layer on the entire upper surface is laminated, and after masking a portion of the laminated second base material sheet corresponding to the colored layer, an alkali It is characterized in that the aluminum vapor deposition layer is removed leaving a portion masked by etching, and decorative printing is applied to the portion where the aluminum vapor deposition layer is removed.

The decorative foil sheet of the present invention can be favorably used for gaming machines such as slot machines and pachinko machines, and in particular, a glossy gold color and a silver color can be simultaneously processed by one etching process. Obtainable.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. The etching foil sheet 1 of the preferred embodiment of the present invention shown in FIG. 1 has a colored layer 3 formed on a top surface of a first base material sheet 2 by sheet-fed printing, and the colored base layer 3 is formed on the first base. A material sheet 2 and a transparent second base material sheet 5 having an aluminum vapor deposition layer 6 on the entire upper surface are laminated via an adhesive layer 4. Examples of sheet-fed printing include screen printing, offset printing, pad printing, and the like, but screen printing is preferable. It should be noted that the etching foil sheet 1 has a surface on the A side during use, and the player receives a visual stimulus by looking at the A side.

The first base material sheet 2 is a transparent synthetic resin film and is used as a base material for a sheet band of a general-purpose game machine, for example, polyester, polyethylene, polypropylene, polyvinyl chloride, It can be appropriately selected from plastic films such as polystyrene, polycarbonate and polyimide, but polycarbonate is particularly preferable from the viewpoint of printability. The thickness of the first base material sheet 2 is preferably 180 to 200 μm.

The colored layer 3 is preferably formed by screen printing on the upper surface of the transparent first substrate sheet 2. For example, a transparent yellow layer may be printed as the colored layer 3 on the portion to which the gold color is applied, and the colored layer 3 may not be printed on the portion to which the silver color is applied. By using screen printing, it is possible to form a delicate image in which gold and silver are mixed.

In the present invention, it is not necessary to use a special alkali-soluble ink so that the transparent colored ink for forming the colored layer 3 can be removed by alkali etching. On the other hand, a known ink having excellent printability can be appropriately selected and is not particularly limited. The thickness of the colored layer may be a thickness formed by ordinary screen printing, and is, for example, 1 to 2 μm.

An adhesive having transparency is used for the pressure-sensitive adhesive layer 4 on the upper surface of the colored layer 3, and the first base material sheet 2 and the second base material sheet 5 having the colored layer 3 are firmly adhered and laminated. Have a function to do. As the adhesive layer 4, a known transparent synthetic resin adhesive such as an epoxy resin, a urethane resin, a vinyl chloride resin, an acrylic resin, or a silicone resin can be appropriately used.

The second base sheet 5 may be a synthetic resin film similar to the first base sheet 2. The thickness of the second base material sheet 5, like the first base material sheet 2, is preferably 30 to 80 μm, and particularly preferably about 50 μm.

An aluminum vapor deposition layer 6 is formed on the entire upper surface of the second base material sheet 5. The aluminum vapor deposition layer 6 is formed by heating aluminum to evaporate it and depositing the vapor on the surface of the second base material sheet 5 preferably with a thickness of 0.01 to 0.1 μm. Here, as the adhesive layer 4, the second base material sheet 5, and the aluminum vapor deposition layer 6, those commercially available as a unit can be used. Specifically, an adhesive layer 4 having a release sheet (not shown) attached on the lower surface of a second base material sheet 5 made of polyethylene terephthalate (PET), and an aluminum vapor deposition layer 6 on the upper surface are formed. Further, a commercially available pasta film (manufactured by Lintec Co., Ltd.) having a masking film (not shown) for protecting the aluminum vapor deposition layer on the upper surface thereof can be used. In this case, the first base material sheet 2 on which the colored layer 3 is formed
Then, the lamination with the transparent second base material sheet 5 is performed after the release sheet (not shown) attached to the lower surface of the second base material sheet 5 is peeled off. Moreover, before performing the below-mentioned alkali etching, after removing a masking film (not shown), it performs.

Here, the present inventor replaces the above-mentioned commercially available pasta film with the second base material sheet 5 made of polycarbonate having a thickness of preferably 30 to 80 μm, particularly about 50 μm, which is extremely excellent in printing characteristics. I found that. The configuration other than the second base material sheet 5 made of polycarbonate is the same as that of the commercially available pasta film.

In the foil sheet 1 formed as described above, the aluminum vapor deposition layer 6 can be removed by alkali etching according to a known method.

A method of printing glossy gold and silver and other colors on the etching foil sheet 1 will be described with reference to FIGS. 3 and 4.

When printing a gold color having a gloss on the etching foil sheet 1, as shown in FIG. 3, screen printing is performed on the first base material sheet 2 using a transparent yellow ink at a portion to be gold colored. To do. Next, the yellow ink is dried to form the colored portion 31, and then the second base material sheet 5 on which the aluminum vapor deposition layer 6 is formed is stuck on the colored portion 31 via the adhesive layer 4 and laminated.

Then, the upper surface of the aluminum vapor deposition layer 6 corresponding to the colored portion 31 is masked by resist printing,
A masking portion 71 is provided. The method of forming the masking portion 71 by the resist printing on the portion corresponding to the colored portion 31 can be performed by a conventional method in printing using a sensor by the three-point specifying method of one point of the beam and two points of the grip.

When the etching foil sheet 1 is made to have glossy silver, a masking portion 72 is provided on the upper surface of the aluminum vapor-deposited layer 6 where the colored portion 31 is not formed on the first base material sheet 2. .

After forming the masking portions 71, 72, the upper surface of the aluminum vapor deposition layer 6 is subjected to alkali etching. The alkali etching itself can be performed by a known method, for example, etching with a sodium hydroxide solution of about 5%, and then neutralization with an acid, washing with water, and drying may be performed according to a conventional method.

As shown in FIG. 4, masking portions 71, 7
The aluminum vapor-deposited layer 6 is removed from the portion c except where 2 is applied. Therefore, when viewed from the surface (A side), at the location a having the masking portion 71, the glossy silver color of the aluminum vapor deposition layer 6 and the colored portion 31 provided with the transparent yellow ink overlap each other, and the glossy gold color is formed. can get. Further, in the portion b where the colored portion is not provided on the first base material sheet 2 and the aluminum vapor deposition layer 6 is provided with the masking portion 72, only the silver color of the aluminum vapor deposition layer 6 is transmitted, and a silver color having gloss is obtained.

Further, after the gold or silver color is formed by the above method, the portion c removed by alkali etching is subjected to decorative printing by screen printing according to a conventional method. Thereby, in the pattern of the etching foil sheet 1, for example,
The jackpot pattern can be formed in a state in which glossy gold or silver is mixed, and in decorative printing, various colors such as red and blue can be applied.

By using the above-described printing method, it is possible to simultaneously apply glossy gold or silver to the panel 10 of the gaming machine shown in FIG. 2 in one etching step. The panel 10 of the gaming machine is mounted on a gaming machine such as a slot machine, and usually displays a plurality of reduced symbols. As shown in FIG. 2, this panel 10 is a transparent and thick panel substrate 11 having a thickness of preferably about 0.5 to 10 mm.
And the etching foil sheet 1 shown in FIG. 1 formed on the upper surface of the panel substrate 11 via the adhesive layer 13. An acrylic resin can be preferably used as the panel base material 11.

[0032]

As described above, according to the present invention, glossy gold and silver colors can be simultaneously applied to a foil sheet by one alkali etching. Also,
By sticking this on a panel base material, a glossy panel in gold or silver is obtained.

[Brief description of drawings]

FIG. 1 shows an enlarged sectional view of an etching foil sheet of a gaming machine of the present invention.

FIG. 2 illustrates an enlarged cross-sectional view of a panel of a game machine.

FIG. 3 shows an enlarged cross-sectional view when an etching foil sheet is colored with gold and silver.

FIG. 4 shows an enlarged cross-sectional view of an etching foil sheet in a state where an aluminum vapor deposition layer is removed by etching.

[Explanation of symbols]

1 Etching foil sheet 2 First base material sheet 3 colored layers 4 Adhesive layer 5 Second substrate sheet 6 Aluminum vapor deposition layer 10 panels 11 panel base material 13 Adhesive layer 31 Coloring part 71 Masking part 72 Masking part

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2C088 BC25 DA07 DA13 EA02 EA03                       EB78                 4F100 AB10E AK04 AK07 AK12                       AK15 AK41 AK45 AK49 AP00E                       AR00A AR00B AR00C AR00D                       BA05 BA07 EH66E EJ15E                       GB90 HB31B HB31E JL10B                       JL13C JN01A JN01B JN01D

Claims (5)

[Claims] 1. An etching foil sheet for a decorated gaming machine, wherein a transparent first base material sheet and a colored layer, an adhesive layer, and a transparent second base material are formed on the upper surface of the first base material sheet in this order. An etching foil sheet for a gaming machine, characterized in that a material sheet and an aluminum vapor deposition layer are formed. 2. The etching foil sheet for a gaming machine according to claim 1, wherein a transparent yellow layer is printed as the colored layer on a portion to which a gold color is applied, and a colored layer is not printed on a portion to which a silver color is applied. 3. The etching foil sheet according to claim 1 or 2, wherein the aluminum vapor deposition layer is removed by etching leaving a necessary portion, and decorative printing is applied to a portion where the aluminum vapor deposition layer is removed. A decorative foil sheet that is characterized by being. 4. The decorative foil sheet according to claim 3, wherein a panel plate is adhered to the lower surface of the first base material sheet via an adhesive layer. 5. A colored layer is sheet-fed printed on the upper surface of a transparent first substrate sheet, and then aluminum is vapor-deposited on the entire upper surface of the first substrate sheet, which has been sheet-fed, through an adhesive layer. After laminating a transparent second base material sheet having a layer and masking a portion of the laminated second base material sheet corresponding to the colored layer, the aluminum vapor deposition leaving a masked portion by alkali etching A method for producing a decorative foil sheet, characterized in that the layer is removed, and decorative printing is performed on the portion where the aluminum vapor deposition layer is removed.