JPH07128B2 - Method for manufacturing decorative panel for game machine - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to pachinko, pachislot,
The present invention relates to a method for manufacturing a decorative panel used for coin game machines and other game machines.

[0002]

2. Description of the Related Art This kind of makeup panel is a face part of a game machine, and its impression determines its popularity to some extent.
Therefore, the sales of the unit are also affected. Therefore, since it is required to be conspicuous and have a high-class feeling, it is often decorated with a foil such as gold or silver.

The foil is provided on the panel surface by pressing the foil. However, in order to perform silk screen printing, offset printing, etc. for decoration of parts other than foil, it is necessary to wash in advance to prevent clogging of the plate due to dirt on the surface of the material. Since a solvent is used in this case, there is a problem that the solvent easily causes cracks in the foil pressing portion. Therefore, a. After foil stamping on the material, manually by visual alignment, with water glue,
Paste printing film, b. After stamping the material with a foil, apply a protective layer (UV ink, etc.) and print from above.
After printing on the material, it has become possible to use a method such as stamping on the blank area.

However, the method (a) has low productivity because it is a manual work, there is a problem that it is not possible to perform highly accurate positioning, and a non-uniform portion is apt to occur, and the method (b) has more steps and is inferior in durability. The problem arises. In addition, the method of (c) is not suitable for a fine design because the foil stamping step is performed afterwards, and there is a manufacturing constraint that sufficient pressure cannot be applied for foil stamping.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made by paying attention to the above points.
A high-quality and high-strength decorative panel for game machines can be manufactured with high efficiency and at a low cost, and the manufacturing process can be simplified by eliminating the washing process and the drying process.

[0006]

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention imprints a transparent panel material made of a synthetic resin with a foil forming a part of a character, a pattern or other patterns seen through from the front side. The transfer film is formed by printing characters, patterns, and the like that form the rest of the pattern on the film base through a release layer, and aligning the position of the foil stamping part of the panel material with the pattern of the transfer film, The means of adhering the transfer film to the back surface with an adhesive suitable for the synthetic resin forming the transfer film is taken.

The foil usually means a thin sheet formed by hitting a metal to a thickness of 150 μm or less. In the method of the present invention, various colored foils and the like are used in addition to such gold foil and silver foil. You can For such foil, use a foil stamping machine,
It is pre-foiled by a usual method such as imprinting on the back surface of the panel material. The foil pressing is generally carried out at a temperature of 175 to 210 ° C. by applying a pressing pressure of 6 t / cm 2 for several seconds, in which case a recess having a depth of several tens to several hundreds of μm is formed.

Thereafter, the printing surface side of the transfer film is bonded to the back surface of the panel material after aligning the foil pressing portion and other patterns. Conventionally, it was necessary to wash the back surface of the panel material that was foil-stamped, print it, and dry it, but in the present invention, these are omitted.

Further, since the cleaning agent and the solvent are not used, the preprocessing is not restricted, and the adverse effect such as the generation of cracks on the foil pressing portion does not occur.

An adhesive compatible with the resin of the panel material is used for adhering the transfer film. The adhesive surface needs to be clean, but minute dust and the like can be contained by the adhesive. Also, no drying is necessary. By using a thermosetting adhesive as the adhesive, the reflectance of light is increased and the color development is also improved.

After the transfer film is adhered, the film base is removed, but the release layer remains on the back surface of the printed portion and protects the transferred printed portion.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

A transparent and colorless panel material made of an acrylic resin is used as a panel material, which is imprinted with a foil using a foil stamping machine. Use a foil with a thickness of 12 to 16 μm and heat and press the backside of the material to 100 to 200 μm.
It is dented to some extent and attached, and when you see it from the surface, you can get a three-dimensional pattern that looks like an engraving. For the pattern to be stamped, important characters and patterns are selected from the patterns on the decorative panel.

Transfer film A release agent is applied to one surface of a polyester base film having a thickness of 25 μm to form a release layer, and the surface of the release layer is
A multicolor printing machine is used in which characters, patterns and the like forming the remaining part of the pattern are printed in multicolor. As a multi-color machine, a four-color machine was used in the examples, and the thickness of each ink layer was 10 μm or less, and particularly preferably 5 to 6 μm. Since such a transfer film has a multi-layered structure, it has a strong fixing force between inks, and the entire ink layer is as thick as several tens of μm, so that fading hardly occurs.

Adhesion Step The printing surface of the transfer film is heat-bonded to the back surface of the panel material by using a thermosetting adhesive for acrylic resin. In the embodiment, an automatic machine having a press roll is used to press at a pressure of 600 kg / cm 2 or more and a feed rate of 5 to 6.5 cm.
/ Sec at a temperature of 165 to 175 ° C. Since it was an automatic machine, precise alignment was possible, and the deviation was within ± 0.05 mm.

Peeling Step The base film is removed from the transfer film adhered to the back surface of the panel material to complete the decorative panel according to the present invention. This step is a step that is performed because the base film is not required for the decorative panel, but it is performed within the range where the base film remains attached and does not hinder, for example, storage, transportation, or other stages before mounting on a game machine. You don't have to. If the base film is made of a transparent material and there is no problem in mounting it on the game machine, it need not be removed.

Structure The decorative panel according to the present invention manufactured as described above has a structure as shown in FIGS. 1 to 4. In the figure, 1 is the panel material,
Reference numeral 2 denotes a foil of a foil stamping portion imprinted on the back surface of the foil, 3 is a thermosetting adhesive layer that bonds the panel material 1 and the transfer film 4, and the transfer film 4 has a printing layer 5 and a peeling layer 6. . 7 is a base film to be removed. Therefore, the decorative surface including the foil 2 and the printing portion 8 is seen through from the surface.

Durability test, etc. 1) JIS Z is printed on the printed surface of the manufactured decorative panel.
A cellophane pressure-sensitive adhesive tape was adhered in accordance with the provisions of 1522, and a peeling test was conducted at an angle of about 15 °, but no peeling that could be discerned with the naked eye was observed. 2) 100 pieces of 1 mm pitch base stitches that reach the transfer surface fabric were made with a knife, and the tape peeling test of the item 1 was performed on them, but peeling was not observed. 3) After immersing the decorative panel in 30 ° C water for 24 hours,
When the tape peeling test of the item 1 was conducted, no discoloration was observed and no peeling observable with the naked eye was observed. 4) After irradiating the transfer surface with a sunshine weather meter for 48 hours, the condition was observed, but there was discoloration, cracks,
Neither phenomenon of peeling was observed.

[0019]

Since the present invention is constructed and operates as described above, it suffices to thermally transfer a transfer film to a panel material, the process is remarkably simplified, and a solvent is not required. Since it has a peeling layer, it has high strength, and the use of a thermosetting adhesive enhances the reflectance and provides good color development. Further, in the case of bonding by an automatic machine, it is possible to manufacture particularly precisely and at high speed, and therefore there is an effect that a high-quality decorative panel can be mass-produced at low cost.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a decorative panel according to the present invention.

FIG. 2 is a perspective view of the same panel.

FIG. 3 is a sectional view showing an exploded structure of the panel.

FIG. 4 is a cross-sectional view of the same panel.

[Explanation of symbols]

 1 Panel material 2 Foil 3 Adhesive layer 4 Transfer film 5 Printing layer 6 Release layer

Claims (3)

[Claims] 1. A film base for imprinting characters, patterns, etc., which are the rest of the pattern, by imprinting characters, patterns, etc., which are seen through from the front, on a back surface of a transparent panel material made of synthetic resin, and forming a part of the patterns. To form a transfer film by printing on the release layer, align the foil stamping part of the panel material with the pattern of the transfer film, and use an adhesive that is compatible with the synthetic resin to form it on the back surface of the panel material. A method for manufacturing a decorative panel for game machines, which comprises a transfer film bonded. 2. The method for manufacturing a decorative panel for game machines according to claim 1, wherein the panel material is made of an acrylic resin, and the adhesive is a thermosetting adhesive for the resin. 3. The manufacture of a decorative panel for game machines according to claim 1, further comprising the step of peeling the film base from the transfer film adhered to the back surface of the panel material, leaving the peeling layer on the printing surface side. Method.