JPH04256765A - Manufacture of decorative panel for game machine or the like - Google Patents

Abstract

PURPOSE:To realize the simplified manufacturing method for manufacturing a decorative panel being conspicuous, and also, having a high-grade sense. CONSTITUTION:According to this method, a decorative panel of a game machine, etc., in which patterns of a foil stamping part and a printing part are combined precisely by using a panel blank material in which a foil for forming a part of a pattern consisting of a character, a picture pattern and others viewed from the surface is stamped on the reverse side of a transparent plate material consisting of a synthetic resin, and a transfer film in which a pattern of a character, a picture pattern and others which becomes the remainder of the above pattern is printed to a film base through a peeling layer, using an adhesive agent conforming to the resin of the panel blank material, and sticking the transfer film to the reverse side of the panel blank material concerned.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is applicable to pachinko, pachislot,
The present invention relates to a method of manufacturing decorative panels used for coin game machines and other game machines.

0002

[Prior Art] This type of decorative panel is the facial part of a game machine, and its popularity is determined to some extent by its impression.
Therefore, sales of the machine will also be affected. Because of this, they are required to stand out and have a sense of luxury, so they are often decorated with gold, silver, or other foils.

[0003] The foil is applied to the panel surface by foil stamping. However, in order to perform silk screen printing, offset printing, etc. to decorate parts other than foil, it is necessary to wash the plate beforehand to prevent the plate from clogging due to dirt on the material surface. Since a solvent is sometimes used, there is a problem in that the solvent tends to cause cracks in the foil stamped area. Therefore, i. After stamping the foil on the material, attach the printing film manually by visual alignment and using water glue.B. After foil stamping on the material, a protective layer (
c. Apply UV ink, etc.) and print over it. Methods such as printing on the material and then stamping the margins with foil began to be used.

[0004] However, the method (a) has the problem of low productivity because it is manual work, cannot perform highly accurate positioning, and tends to produce uneven parts, and the method (b) requires more steps and is less durable. A problem arises. In addition, since method C requires the foil stamping process to be carried out afterwards, it is not suitable for detailed designs, and there are manufacturing limitations in that it is not possible to apply foil stamping with sufficient pressure.

[0005]

[Problems to be Solved by the Invention] The present invention has been made with attention to the above points, and its problems are as follows:
To make it possible to manufacture high-quality, high-strength decorative panels for game machines with high efficiency and at low cost, and to simplify the manufacturing process by eliminating the need for washing and drying processes.

[0006]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention imprints foil forming part of letters, designs, or other patterns that can be seen through the front surface on the back side of a transparent panel material made of synthetic resin. , form a transfer film by printing letters, designs, etc. that make up the remaining part of the pattern on a film base through a release layer, align the foil-stamped part of the panel material with the pattern of the transfer film, and then print the pattern on the panel material. This method involves adhering the transfer film to the back surface using an adhesive compatible with the synthetic resin used to form it.

[0007] The above-mentioned foil usually refers to a thin sheet of metal beaten into a thin sheet with a thickness of 150 μm or less, but in the method of the present invention, in addition to such gold foil and silver foil, various colored foils can be used. Can be done. Such foil is made using a foil stamping machine.
It is pre-stamped with foil in the usual way, such as by stamping it on the back of the panel material. Foil stamping is generally carried out at a temperature of 175 DEG to 210 DEG C. by applying a press pressure of 6 t/cm@2 for several seconds, and in this case, recesses with a depth of several tens to several hundred micrometers are formed.

[0008] Thereafter, the printed side of the transfer film is adhered to the back side of the panel material after aligning the foil-stamped portion and other patterns. Conventionally, it was necessary to wash the back side of the foil-stamped panel material, print on it, and dry it, but these steps are omitted in the present invention.

Furthermore, since no detergent or solvent is used, there are no restrictions on pre-processing, and no adverse effects such as cracks on the foil-stamped portion occur.

[0010] For adhesion of the transfer film, an adhesive compatible with the resin of the panel material is used. Although the adhesion surface needs to be clean, fine dust and the like can be contained by the adhesive. Also, drying is not necessary. By using a thermosetting adhesive as the adhesive, light reflectance is increased and color development is also improved.

After adhesion of the transfer film, the film base is removed, but the release layer remains on the back side of the printed area to protect the transferred printed area.

0012

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

Panel material A transparent colorless panel material made of acrylic resin is used, with foil stamped on the back side using a foil stamping machine. Use a foil with a thickness of 12 to 16 μm, and heat and pressurize the back side of the material to form a foil with a thickness of 100 to 200 μm.
It is attached with a slight depression, and when viewed from the surface, it has a three-dimensional pattern that looks like a sculpture. Important letters and designs from among the patterns on the decorative panel are selected for foil stamping.

Transfer film: A release agent is applied to one side of a polyester base film having a thickness of 25 μm to form a release layer, and on the surface of the release layer,
The remaining part of the pattern, such as letters and designs, are printed in multiple colors using a multicolor printing machine. As a multi-color machine, a four-color machine was used in the examples, and the thickness of each ink layer was preferably 10 μm or less, particularly 5 to 6 μm. Since such a transfer film has multiple layers, the adhesion between the inks is strong, and the total ink layer is as thick as 20-odd micrometers, making it difficult for color fading to occur.

Adhesion process: The printed surface of the transfer film is heat-adhered to the back surface of the panel material using a thermosetting adhesive for acrylic resin. In the example, an automatic machine with a press roll was used to apply a press pressure of 600 kg/cm2 or more and a feed rate of 5 to 6.5 c.
Bonding was carried out under conditions of m/sec and temperature of 165 to 175°C. The use of an automatic machine enabled precise positioning, and the deviation was within ±0.05 mm.

Peeling process: 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 process is carried out because the decorative panel does not require a base film, but it should not be carried out to the extent that there is no problem with the base film remaining attached, such as during storage, transportation, or before installation on a game machine. You don't have to. Further, if the base film is made of a transparent material and there is no problem in attaching it to the game machine, there is no particular need to remove it.

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 stamped on the back side of the panel, and 3 a thermosetting adhesive layer that adheres the panel material 1 and the transfer film 4. The transfer film 4 has a printing layer 5 and a peeling layer 6. . 7 is the base film to be removed. Therefore, the decorative surface consisting of the foil 2 and the printed portion 8 can be seen through from the front surface.

Durability test, etc. 1) The printed surface of the manufactured decorative panel was tested according to JIS
A test was conducted in which a cellophane adhesive tape was applied according to the regulations of Z 1522 and peeled off at an angle of approximately 15°, but no peeling that could be discerned with the naked eye was observed. 2) Using a knife, 100 base lines were made at a pitch of 1 mm reaching the fabric on the transfer surface, and the tape peeling test described in Section 1 was performed on them, but no peeling was observed. 3) After immersing the decorative panel in water at 30°C for 24 hours, the tape peeling test described in Section 1 was conducted, but no discoloration occurred and no peeling that could be discerned with the naked eye was observed. 4) 48 hours by sunshine weather meter.
After the transfer surface was irradiated, the situation was observed, but no discoloration, cracking, or peeling was observed.

[0019]

[Effects of the Invention] Since the present invention is constructed and operates as described above, it is only necessary to thermally transfer the transfer film to the panel material, which greatly simplifies the process and eliminates the need for solvents, so there are no restrictions before or after the process. It has a peeling layer, so it has high strength, and the use of a thermosetting adhesive increases reflectance and produces good color. Furthermore, when bonding is performed using an automatic machine, particularly precise and high-speed manufacturing is possible, and therefore high-quality decorative panels can be mass-produced at low cost.

[Brief explanation of the drawing]

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 an exploded cross-sectional view showing the structure of the above panel.

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

[Explanation of symbols]

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

Claims (3)

[Claims] Claim 1: Foil that forms part of the letters, designs, and other patterns that can be seen through from the front surface is stamped on the back side of a transparent panel material made of synthetic resin, and the letters, designs, and other parts that make up the remainder of the pattern are stamped on a film base. Form a transfer film by printing through a release layer, align the pattern of the transfer film with the foil-stamped part of the panel material, and apply an adhesive compatible with the synthetic resin to form it on the back side of the panel material. A method for producing a decorative panel for game machines by adhering a transfer film. [Claim 2] The panel material is made of acrylic resin,
Claim 1: The adhesive is a thermosetting adhesive for the same resin.
A method for manufacturing a decorative panel for game machines as described in . 3. The production of the decorative panel for game machines according to claim 1, which includes the step of peeling off the film base from the transfer film adhered to the back surface of the panel material, leaving a peeling layer on the printed surface side. Method.