JP2005124955A - Decorative plate for game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative plate for a game machine preventing a colored design of a board and an adhesive joint of a bonding layer from being exposed to the outside without using a mount being used between a transparent resin sheet and a board in a conventional decorative plate for the game machine. <P>SOLUTION: This decorative plate for the game machine is formed by printing a set-solid print layer on a pattern layer side of the transparent resin sheet printed with the pattern layer and bonding the set-solid print layer with the board by the bonding layer. This decorative plate is so formed that the light transmission density of the transparent resin sheet printed with the pattern layer and the set-solid print layer is 0.5 or more. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a decorative board for play. More specifically, a decorative board for a gaming machine having a transparent resin sheet, a picture layer, a solid print layer, and a substrate, and a solid print layer bonded to the substrate is provided between the transparent resin sheet having the pattern layer and the substrate. The present invention relates to a decorative board for a gaming machine.

  As shown in FIG. 6, the conventional decorative board 101 for a gaming machine employs a structure in which a mount 105 is provided between a cell 201 and a substrate 107 in which a picture layer 103 and the like are provided on a transparent resin sheet 102. (For example, Patent Document 1).

The mount 105 is generally opaque white paper or a resin plate, and is bonded to the cell 201 by the adhesive layer 104, while being bonded to the substrate 107 by the adhesive layer 106. As a result, the color pattern on the surface of the substrate 107, for example, the grain of the veneer and the glue of the adhesive layer 106 appear on the pattern of the pattern layer 103 that is exposed on the decorative board surface 101 of the gaming machine, which impairs the beauty of the pattern. There was no.
JP 2001-300030 A

  However, in order to provide the mount 105, the process of adhering the mount 105 to the pattern layer 103 side of the cell 201 using an adhesive as described above is required. Further, depending on the material of the transparent resin sheet 102 to be used, there may be a problem such as poor adhesion to the mount 105 and peeling, etc., so when creating the decorative board 101 for a gaming machine, the transparent resin sheet 102 and the mount 105 Adhesion had to be considered. Further, after the cell 201 and the mount 105 were bonded, it had to be left at room temperature for about 24 hours in order to dry the adhesive.

  Further, in the sheet formed by bonding the mount 105 to the cell 201, when the mount 105 is a paper, curling occurs with the mount 105 inside, so that the handleability of the sheet after bonding the mount 105 is poor, and in the next step Adhesion between a certain substrate 107 and the sheet after bonding the mount 105 is difficult.

  By the way, in the decorative board 101 for gaming machines, various efforts are made to produce more attractive images for the player on the surface of the decorative board 101 for gaming machines. As one of the attractive effects, a light transmitting window portion is provided on the substrate 107 to irradiate light from the back surface to the surface of the decorative plate, or from the light emitting device embedded in the light transmitting window portion, the decorative plate 101. Decorations such as making the pattern of the pattern layer 103 exposed on the surface of the decorative board 101 for a gaming machine stand out by irradiating light toward the surface, or flashing light as the game progresses are considered.

  However, in the conventional decorative board 101, since the opaque mount 105 is bonded on the substrate 107 as described above, even if light is irradiated from the back surface of the substrate 107 provided with the light transmitting hole portion, the light is mounted on the mount 105. As a result, the light could not be sufficiently transmitted to the surface of the decorative plate 101. Therefore, in order to sufficiently transmit light to the surface of the decorative board 101, it is necessary to process the base plate 105 so as to provide a light transmitting hole, and this processing is very troublesome. In addition, in order to more effectively produce the light by irradiating the light, not only the light transmitting hole having a simple shape such as a circle or a rectangle is provided in the mount 105, but also according to a letter or a picture. It is desirable to provide a light transmitting hole having a complicated shape such as a figure. However, it is difficult to mass-produce such a complicatedly shaped hole in the mount 105 because it requires fine work such as manual work.

  The present invention is provided to solve the above-described problems, and does not use the mount 105 in the conventional decorative board 101 for gaming machines, and has at least a transparent resin sheet, a picture layer, a solid printing layer, and a substrate. The object is to provide a decorative veneer.

  As a result of intensive studies to solve the above problems, the inventors of the present invention are configured such that at least a pattern layer and a solid printed layer are printed so that the transparent resin sheet has a transmission density of 0.5 or more, and the cell has It has been found that the above-mentioned problems can be overcome according to a decorative board for gaming machines in which a printed solid printed layer and a substrate are joined.

  That is, the decorative board for gaming machine of the present invention is a decorative board for gaming machine having a transparent resin sheet, a picture layer, and a substrate, and a printing layer is printed on the picture layer side of the transparent resin sheet on which the picture layer is printed. The transparent resin sheet having the pattern layer is bonded to the substrate through the solid print layer, and the transmission density of the transparent resin sheet on which the solid print layer is printed is 0.5 or more. The gist is a decorative board for a gaming machine.

  In the present invention having the above-described configuration, the transmission density of the solid print layer can be 0.5 or more.

  Moreover, the decorative board for game machines of this invention can provide a light transmission window part in a board | substrate, and can provide a light transmission hole part in the solid printing layer adjacent to the said light transmission window part.

  The “transmission density” described in this specification and in the claims indicates the light transmission density, and the light transmission amount decreases as the numerical value of the transmission density increases. It shows that.

  The decorative board for gaming machine of the present invention is a transparent sheet in which a solid printing layer is provided on the pattern layer side of the transparent resin sheet without using a mount between the cell and the substrate, and at least the pattern layer and the solid printing layer are printed. By setting the transmission density of the resin sheet to 0.5 or more, it succeeded in concealing the color pattern on the surface of the substrate and the glue of the adhesive layer between the cell and the substrate from appearing on the surface of the decorative board. Therefore, an extra shadow or the like is not added to the pattern displayed on the surface of the decorative board, and the aesthetic appearance of the pattern is not impaired.

  The decorative board for gaming machines of the present invention has a solid printed layer printed on the picture layer side of the transparent resin sheet as described above, and is configured by joining the solid printed layer and the substrate, and the mount is Since it is not used, the bonding process between the mount and the cell and the drying process after the bonding process are not required as in the conventional decorative board for gaming machines. This can simplify the process and shorten the production time. Furthermore, as described above, the present invention does not require adhesion between the mount and the cell, and therefore it is not necessary to consider adhesiveness with the mount in the selection of the transparent resin sheet. Thereby, the selection range of the transparent resin sheet is widened, and the problem that the transparent resin sheet is peeled off from the mount after the bonding is solved.

  Furthermore, since the cell in the present invention having the transparent resin sheet, the pattern layer, and the solid print layer is bonded to the substrate without using the mount, there is a problem of curling that occurs when the paper substrate is bonded to the cell as in the past. It has an excellent property that it is easy to handle.

  Since the solid print layer in the present invention is formed by a general printing method, it is easy to provide substantially uniform and entire surface on the pattern layer side of the transparent resin sheet.

  Since the present invention can perform pattern printing by replacing the printing plate for the solid printing layer, in the solid printing layer provided substantially uniformly, the area where the ink is not applied, the area where the ink amount is reduced, or the ink amount is set. It is easy to provide any of the increased areas or a combination of the above areas. As a result, a light transmission window is provided on the substrate, and light is emitted from the back surface of the decorative plate toward the surface, or light is emitted from the light emitting device embedded in the light transmission window portion toward the decorative plate surface. A circular or polygonal light-transmitting hole in the solid print layer when making decorations such as making the pattern of the pattern layer that appears on the surface of the decorative board stand out or flashing light as the game progresses In addition, it is possible to easily form a hole for light transmission of a complicated figure matched to a cut-out character or a picture.

  The present invention relates to a decorative board for a gaming machine in which the color pattern of a substrate and the glue of an adhesive layer do not appear on the surface of the decorative board without using a mount, and can be created by a simple process.

  The present invention will be described in more detail below with reference to the drawings of the example drawings.

  FIG. 1 shows a first embodiment of the present invention. In the figure, reference numeral 2 denotes a transparent resin sheet. A pattern layer 3 is printed on the transparent resin sheet 2, and a solid print layer 4 is printed on the entire surface of the printed pattern layer 3. A cell 21 is composed of the pattern layer 3 and the solid print layer 4. The cell 21 is bonded to the substrate 6 through the solid print layer 4. An adhesive is used for the bonding, and an adhesive layer 5 is formed between the solid print layer 4 and the substrate 6 ( That is, the transparent resin sheet 2 having the pattern layer 3 is bonded to the substrate 6 through the solid printing layer 4.), the decorative plate 1 for gaming machines of the present invention is configured.

  FIG. 2 shows a second embodiment of the present invention, in which a cell 21 formed by printing a pattern layer 3 on a transparent resin sheet 2 and printing a solid print layer 4 on the pattern layer 3 is shown. In the decorative board for gaming machines, which is bonded to the substrate 6 through the printed layer 4, a light transmitting portion C is provided. That is, in the figure, a light transmission window C is formed by providing a light transmission window A on the substrate 6 and providing a light transmission hole B in the solid print layer 4 adjacent to the light transmission window A. The decorative plate for game machines of this invention is illustrated. FIG. 3 is a schematic cross-sectional view of FIG.

  FIG. 4 is an exploded perspective view showing a third embodiment of the present invention, and shows another form of the light transmitting portion C. FIG. In a decorative board for a gaming machine having a transparent resin sheet 2, a pattern layer 3, a solid print layer 4, an adhesive layer 5 and a substrate 6, the solid print layer 4 is provided with a light transmitting hole B and an overprint portion D, 6 is provided with a light transmitting window portion A. FIG. 5 is a schematic cross-sectional view of a decorative plate for gaming machines according to the present invention in which the layers shown in FIG. 4 are laminated.

  First, the transparent resin sheet 2 used in the present invention will be described. The transparent resin sheet 2 may be colorless and transparent or colored and transparent. In order to clearly display the pattern of the pattern layer 3 printed on the back surface thereof, it is particularly desirable to be colorless and transparent, but not to impair the aesthetics of the pattern. Or may be colored and transparent to match the pattern. Moreover, you may provide a pattern in the back surface of the transparent resin sheet 2 by metal vapor deposition partially according to the pattern layer 3 printed later.

  The material of the transparent resin sheet 2 is cellulose acetate butyrate (hereinafter referred to as “CAB”), cellulose acetate propionate (hereinafter referred to as “CAP”), cellulose acetate based plastic such as triacetyl cellulose, or polyethylene terephthalate. (Hereinafter referred to as “PET”), synthetic resins such as acrylic resin and polycarbonate, and CAB, CAP, and PET are particularly preferable.

  The surface of the transparent resin sheet 2 is preferably finished to a smooth and glossy surface, while the back side is printed on the pattern layer 3 and thus does not need to be finished to a smooth and glossy surface. Although it may be matte and / or have some unevenness, it is preferable that the transparency is not impaired, or the transparency is maintained after printing with the pattern printing ink. Moreover, embossing may be given to such an extent that transparency is not impaired. Although the thickness of the said transparent resin sheet 2 is not specifically limited, Usually, about 190 micrometers-about 450 micrometers are preferable, and it is more preferable that it is about 200 micrometers.

  Next, the pattern layer 3 will be described. The pattern layer 3 in the present invention is provided on the back surface of the transparent resin sheet 2, that is, the surface opposite to the surface to be the decorative board surface. As a printing method for forming the pattern layer 3, any method may be used as long as the printing layer can be formed on the transparent resin sheet. Further, the ink used for forming the pattern layer 3 may be any ink as long as it can be used in the printing method selected arbitrarily. For example, the pattern layer 3 first performs offset printing on the back surface of the transparent resin sheet 2 using UV ink, irradiates ultraviolet rays to cure the ink on the printing surface, and then provides an offset printing layer. It can be formed by performing silk screen printing using an ink containing any one of the glitter pigments and providing a silk screen printing layer.

  The offset printing layer and the silk screen printing layer constituting the picture layer 3 exemplified above are provided so that each picture is partially printed to constitute the picture layer 3 as a whole, both of which are transparent resin sheets 2. There is no need to be printed on the entire surface, and both print layers may be printed in layers, or only one of them may be printed. In other words, an offset printing layer is formed on the back surface of the transparent resin sheet, and a silk screen printing layer is formed on the offset printing layer, an area where only the silk screen printing layer is formed without providing the offset printing layer, and offset printing. An area where only the layer is formed and the silk screen printing layer is not formed, or an area where the offset printing layer and the silk screen printing layer are not formed and the back surface of the transparent resin sheet is exposed can be arbitrarily provided. It is formed.

  The UV ink used in the offset printing exemplified above will be described. The UV ink is obtained by adding various pigments to a resin that is cured by irradiation with ultraviolet rays. As the resin to be cured, a resin having a polymerizable unsaturated bond or an epoxy group is used. Specifically, a polyester resin, an epoxy resin, a urethane acrylate resin, or an oligomer, prepolymer or monomer of these resins is used as the resin. Or a resin appropriately mixed with an oligomer, prepolymer or monomer of these resins. It is preferable to add a polymerization initiator to these resins for the purpose of promoting curing. Examples of the polymerization initiator include acetylphenones and benzophenones. The pigment may be selected from organic pigments, carbon black, inorganic pigments (such as titanium white), matte pigments (such as calcium carbonate), etc., depending on the desired hue, and may be used alone or in combination.

  After printing using UV ink, curing by ultraviolet irradiation is usually performed. For ultraviolet irradiation, a high-pressure mercury lamp, a metal hydride lamp, or the like is used, and the coating film is cured by irradiating with ultraviolet rays for about 0.5 to about 5 seconds. The steps from coating to curing are preferably performed continuously. It is preferable to print so that the thickness after the curing is about 0.1 to about 100 μm.

  The ink used in the silk screen printing layer exemplified above is composed of a colorant, vehicle, solvent, etc. made of either a fluorescent dye or a bright pigment. A fluorescent dye or fluorescent pigment is used as the fluorescent pigment. Examples of the glitter pigment include metal powder or metal foil such as gold, silver, copper, brass, and aluminum, a cut piece of a synthetic resin film on which the above metal is vapor-deposited, or a pearl pigment that gives pearl luster or interference luster, These can be used alone or in combination of two or more. Since the metal powder having a particle size of about 10 to about 100 μm and the metal foil and metal vapor deposition film having a size of about 50 to about 100 μm can be used, the desired reflected light can be obtained. preferable.

  Examples of the vehicle include drying oils such as linseed oil generally used for paints or inks, semi-drying oils such as soybean oil, synthetic drying oils such as boil oil and dehydrated castor oil, natural resins such as rosin or rosin esters, Examples include synthetic or semi-synthetic resins such as maleic acid resins, and examples of the solvent include alcohol solvents such as isopropyl alcohol and diacetone alcohol, ether solvents such as dibutyl ether, and petroleum solvents such as toluene. A solvent is mentioned.

  As mentioned above, although the formation method of the pattern layer 3 and the ink used were demonstrated, the pattern layer 3 in this invention is not limited above, The layer which comprises the pattern for the production which appears on the surface of the decorative board for game machines Any method and ink that can form the ink can be optionally used.

  Next, the solid print layer 4 will be described. The solid print layer 4 in the present invention is a layer formed by printing on the pattern layer 3 side of the transparent resin sheet 2 on which the pattern layer 3 is printed, and is a layer formed by bonding to the substrate 6 via the adhesive layer 5. It is. The solid print layer 4 in the present invention is a colored print layer that is provided on the entire surface or a wide area of the transparent resin sheet.

  The printing method used for printing the solid printing layer 4 is a printing method capable of forming a printing layer on the transparent resin sheet 2 or a printing layer such as a picture layer 3 provided on the transparent resin sheet 2. Any printing method can be used as long as the printing method can be overprinted, and two or more printing methods may be used. For example, examples of the printing method include silk screen printing, gravure printing, offset printing, letterpress printing, mirror surface printing, flexographic printing, and combinations thereof. Silk screen printing is particularly suitable because it is suitable for solid printing, and a desired transmission density can be obtained with a small number of printings.

  The ink used for the solid print layer 4 can be appropriately selected as long as it is a commonly known colored ink, but is preferably opaque to obtain a desired transmission density, and the color pattern of the picture layer A white color, a color that does not impair the aesthetics of the pattern, or a color adapted to the pattern is preferable so as not to affect the color.

  The solid print layer 4 can be formed by printing once or a plurality of times using the printing method and ink described above. The solid print layer can change its transmission density depending on the number of times of printing, the roughness of the mesh sheet used in the printing plate, the ink concealment rate, and the like. For example, when printing is performed on a printing plate with a coarse mesh sheet and a fine printing plate, respectively, using the same printing method and the same ink, the one with the coarse printing plate is applied in one printing. Since the amount of ink to be printed is large, a printed layer having a desired transmission density can be formed even if the number of times of printing is small. Alternatively, when printing is performed using the same printing method and the same printing plate using a high concealment rate ink and a low concealment rate ink, printing using a high concealment rate ink has a desired transmission density with a smaller number of printings. A layer can be formed.

  Moreover, in one Embodiment of this invention, the hole B for light transmission can be provided in the solid printing layer 4 so that it may be illustrated by FIGS. The hole B for light transmission can be easily formed by forming a solid print layer by pattern printing, whereby a hole through which a desired amount of light can be transmitted can be provided in the solid print layer 4. . That is, as shown in FIGS. 2 and 3, the light transmission hole B in the solid print layer 4 may be configured as a light transmission hole B1 that is completely free of ink in a part of the solid print layer 4. Alternatively, a part of the solid print layer 4 may be configured as a light transmitting hole B2 that is printed thinner than the surrounding solid print layer 4, and both the light transmitting holes B1 and B2 may be formed. It may be configured. As a result, the light transmission amount can be made different between the light transmission holes B1 and B2. That is, the hole B1 has a larger light transmission amount than the hole B2.

  Therefore, the solid print layer 4 may be a print layer having a substantially uniform thickness in one embodiment, and in another embodiment, one or a plurality of portions that are not printed at all or thinly printed are provided. Can be provided as appropriate. This makes it possible to easily form a light transmitting portion, which was difficult to process with the conventional decorative board 101 for gaming machines using the mount 105, and was irradiated from the back of the substrate 6 or from a device embedded in the substrate 6. Light can be easily transmitted through the solid printed layer 4 to the surface of the decorative board 1 for gaming machines.

  Further, by printing a predetermined portion of the solid print layer 4 in an overlapping manner and providing an overprint portion D having a high transmission density around the hole B for light transmission, the print layer in which the light that has passed through the substrate 6 is solid. It is possible to permeate to the surface of the decorative plate 1 for gaming machines more selectively through 4. That is, the decorative board 1 for gaming machines illustrated in FIG. 4 and FIG. 5 is provided with a light transmission window A having an area larger than the area of the light transmission hole B on the substrate 6. The light that has passed through the part A passes through the light transmission hole B, but is blocked by the overprinting part D around the light transmission hole B. In order to obtain a high light shielding effect in the overprinting portion D, it is desirable that a transmission density of 5.0 or more is shown in the region of the overprinting portion D. By providing the overprinting portion D around the light transmitting hole B, the shadow of the light transmitted to the surface of the decorative board 1 for the gaming machine can be clarified and more attractive for the player. Is possible.

  In order to provide the overprinting portion D exhibiting a transmission density of 5.0 or more in the solid print layer 4, general printing techniques may be arbitrarily combined. For example, in the pattern printing of the solid print layer 4, solid printing is performed. By selecting a suitable printing method, increasing the number of times of printing, or making the mesh sheet coarse, using ink with a high concealment rate, or a combination of these to form the overprinting portion D by printing. Can be achieved.

  The present invention is a decorative plate for a gaming machine configured such that the light transmission density of the transparent resin sheet 2 having the picture layer 3 and the solid print layer 4 is 0.5 or more. According to the decorative plate for gaming machines of the present invention exhibiting a desired transmission density, the color pattern of the substrate 6 and the glue of the adhesive layer 5 do not appear on the surface of the decorative board 1 for gaming machines.

  Here, the transmission density in the present invention will be described in more detail. As described above, the light transmission density of the transparent resin sheet 2 having the pattern layer 3 and the solid print layer 4 in the present invention is 0.5 or more. The transmission density is printed on the transparent resin sheet 2 and the transparent resin sheet 2. It is determined from the transmission density of each of the printed pattern layer 3 and the solid print layer. Here, generally, since the density of the ink applied to the pattern layer 3 is not constant, the transmission density of the transparent resin sheet 2 having each printing layer is not constant, but the transmission density of the present invention is the smallest. It may be 0.5 or more. Accordingly, one cell may have a portion having a transmission density of 0.5 and a portion having a transmission density of 0.5 or more.

  In general decorative boards for gaming machines, the transparent resin sheet used is colorless and transparent or colored and transparent, and the transmission density is zero or very low, and the pattern layer is composed of a plurality of inks with complex shades, colored parts, and colorless parts. Further, since it is composed of a transparent part, an opaque part, etc., there are a low transmission density part and a high transmission part. Therefore, by printing the solid print layer 4 capable of having a certain transmission density on the transparent resin sheet 2, the transmission density in the present invention can be adjusted. In particular, when the pattern layer 3 has a colorless transparent portion, that is, a portion having a transmission density of 0, the solid printing layer 4 is printed by printing so that the transmission density of the solid printing layer 4 is 0.5 or more. The transmission density of the obtained transparent resin sheet can be ensured to 0.5 or more.

  As described above, if the transmission density of the solid printed layer 4 is 0.5 or more, the color pattern of the substrate and the glue of the adhesive layer on the surface of the decorative plate 1 for gaming machines of the present invention regardless of the transmission density of the pattern layer 3. The effect is that the eyes do not appear. Here, the above effect is sufficiently achieved when the transmission density of the solid print layer 4 is 0.5 or more and 0.8 or less. Therefore, if the number of times of printing is suppressed sufficiently and not to be economically disadvantageous, the solid printed layer 4 prevents the color pattern of the substrate and the adhesive pattern of the adhesive layer from appearing on the surface of the decorative plate 1 for gaming machines. In order to obtain the effect, it is preferable that the transmission density of the solid print layer 4 is 0.5 or more and 0.8 or less.

  If the transmission density of the transparent resin sheet 2 on which at least the pattern layer 3 and the solid print layer 4 are printed is 0.5 or more, the mount 105 conventionally provided between the substrate 101 and the cell 201 is not used. In any case, by joining the solid print layer of the transparent resin sheet 2 and the substrate 6 in the present invention, the color pattern of the substrate 6 and the glue of the adhesive layer 5 may be exposed on the surface of the decorative board 1 for gaming machines. Absent. Accordingly, the decorative plate 1 for gaming machines of the present invention has a concealing effect equivalent to that of the decorative plate 101 for gaming machines provided with the conventional mount 105, that is, the color pattern of the substrate 6 and the glue of the adhesive layer 5 are for gaming machines. The effect that it is not exposed on the surface of the decorative board 1 can be exhibited.

  In addition, when performing the effect which irradiates light toward the surface from the decorative board 1 for game machines mentioned above, it is not necessary to make the transmission density of the cell 21 in the light transmission part C 0.5 or more. Since the substrate 6 and the adhesive layer 5 do not exist in the light transmission part C, there is no possibility that the color pattern of the substrate 6 or the glue of the adhesive layer 5 will appear on the surface of the decorative board, and in order to pass or transmit light This is because it may be desirable for the transmission density to be lower than 0.5. Since the light transmitting portion C is provided for illuminating the surface from the back of the decorative board 1 for gaming machines to produce light, the shadow of the light is clear on the surface of the decorative board 1 for gaming machines. Optionally, the transmission density may be zero or very low.

  The decorative plate 1 for a gaming machine of the present invention is formed by bonding a transparent resin sheet 2 having a pattern layer 3 to a substrate 6 through a solid printing layer 4, but the bonding is performed using an adhesive. In particular, an adhesive layer 5 exists between the solid printed layer and the substrate. In the case where the present invention is configured without providing the light transmission window portion A on the substrate 6, the adhesive layer 5 is provided on the entire surface or in a wide area between the solid print layer 4 and the substrate 6, and the substrate 6 is light transmissive. When the window portion A is provided, the adhesive layer 5 is provided between the solid printed layer 4 and the substrate 6 except for the region of the light transmitting window portion A. The adhesive that can be used for the adhesive layer 5 for joining the transparent resin sheet 2 printed with the pattern layer 3 and the solid print layer 4 and the substrate 6 is not particularly limited. , Vinyl acetate adhesive, and acrylic adhesive.

  The substrate 6 in the present invention is preferably formed in a plate shape, and examples thereof include a wood board, a wood plywood, a synthetic wood, a synthetic wood plywood, and a resin plate. Generally, a plywood such as a veneer board with little warpage or the like is used. Used. The thickness of the substrate 6 is preferably 16 to 22 mm, and more preferably 18 to 20 mm.

  The substrate 6 shown in FIG. 2 to FIG. 5 is the one in which the light transmission window A is provided in the substrate 6 shown in FIG. The light transmission window portion A is formed by providing a space portion of a desired shape adjacent to the light transmission hole portion B in the solid print layer 4. The shape can be appropriately provided according to effects such as a pattern that appears on the surface of the transparent resin sheet 2. Accordingly, the shape of the light transmitting window portion A may be circular or polygonal, may be linear, or a similar pattern may be configured according to a part of the pattern.

  By providing the light transmitting window portion A, the light irradiated from the back surface of the substrate 6 can pass through the light transmitting window portion A as it is, or a device for irradiating light is embedded in the window portion A and used for gaming machines. Light can be irradiated to the surface of the decorative board 1.

  The decorative plate 1 for gaming machines of the present invention uses the solid printing layer 4 instead of the mount 105 used in the conventional decorative plate 101 for gaming machines. It is important that the transparent resin sheet 2 on which at least the picture layer 3 and the solid print layer 4 are printed and formed has a transmission density of 0.5 or more. Therefore, a further layer can be provided between the transparent resin sheet 2 and the pattern layer 3 or between the pattern layer 3 and the solid print layer 4. For example, the silica ink layer disclosed in the decorative plate for gaming machines previously disclosed (Japanese Patent Application Laid-Open No. 2003-94566) can be provided between the pattern layer 3 and the solid print layer 4 in the present invention. Alternatively, as another example, the metal thin film layer disclosed in the previously invented decorative plate for gaming machines (Japanese Patent Laid-Open No. 2001-300030) is provided between the picture layer 3 and the solid printed layer 4 in the present invention. Can do.

  The solid print layer 4 in the present invention was prepared as follows.

Example 1
A CAB having a thickness of 0.22 mm was used as a transparent resin sheet, and silk screen printing was repeated twice using a white UV ink for silk screen ink on the sheet to form a silk screen printing layer. In the above printing, Tetron mesh 350 wire was used for the printing plate. Continue metal halide lamp 120 W / cm @ 2 lamps with (air-cooled, concentrating, with IR cut filter), integrated light quantity 200 J / cm ^2, the curing of the ultraviolet rays are irradiated for about one second ink under the conditions of a peak intensity 900 mW / cm ² went. The thickness of the printed layer after curing was about 18 μm to about 27 μm.

Example 2
A silk screen printing layer was formed on a transparent resin sheet in the same manner as in Example 1 except that printing was repeated three times using a Tetron mesh 80 line as a printing plate for silk screen printing. The thickness of the printed layer after curing was about 33 μm to about 42 μm.

Comparative Example 1
A silk screen printing layer was prepared in the same manner as in Example 1 except that the number of silk screen printings was one. The thickness of the printed layer after curing was about 6 μm to about 14 μm.

Evaluation 1
The transmission density of the silk screen printing layers of Example 1, Example 2 and Comparative Example 1 was measured (Test 1). For the measurement, a transmission densitometer (TR927) manufactured by Gretag Macbeth was used.

  Next, the silk screen printed layers prepared in Examples 1 and 2 and Comparative Example 1 were bonded to the substrate made of veneer, and the silk was printed at a distance of about 50 cm from the surface of the transparent resin sheet under the room light. A test was conducted to determine whether the veneer color pattern could be visually confirmed through the screen printing layer (Test 2).

  The results of Test 1 and Test 2 are shown in Table 1. From this result, if the transmission density of the transparent resin sheet provided with the printing layer is 0.5 or more, when the transparent transparent resin sheet and the substrate are bonded, the veneer color pattern may appear in the sheet expression. Not shown.

(Table 1)

1 is a schematic cross-sectional view showing an example of a decorative plate for a gaming machine according to the present invention. It is a perspective view which shows an example of the decorative plate for game machines of this invention. FIG. 3 is a schematic cross-sectional view of FIG. 2 showing an example of a decorative board for a gaming machine according to the present invention. It is a disassembled perspective view which shows an example of the decorative plate for game machines of this invention. It is a schematic sectional drawing of FIG. 4 which shows an example of the decorative plate for game machines of this invention. It is sectional drawing which shows an example of the conventional decorative board for game machines.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Decorative plate for gaming machine 2 Transparent resin sheet 3 Picture layer 4 Solid printed layer 5 Adhesive layer 6 Substrate 21 cell 101 Cosmetic plate for gaming machine 102 Transparent resin sheet 103 Picture layer 104 Adhesive layer 105 Mount 106 Adhesive layer 107 Substrate 201 Cell A Light transmission window part B Light transmission hole part B1 Light transmission hole part B2 Light transmission hole part C Light transmission part D Overprinting part

Claims (3)

  In a decorative board for a gaming machine having a transparent resin sheet, a pattern layer, and a substrate, a solid printed layer is printed on the pattern layer side of the transparent resin sheet on which the pattern layer is printed, and the transparent resin sheet having the pattern layer is formed. A decorative board for a gaming machine, wherein the transparent resin sheet on which the solid printed layer is printed is bonded to a substrate through the solid printed layer, and a transmission density of the transparent resin sheet is 0.5 or more.   The decorative board for gaming machines according to claim 1, wherein the solid print layer has a transmission density of 0.5 or more.   The decorative board for gaming machines according to claim 1 or 2, wherein a light transmission window portion is provided on the substrate, and a light transmission hole portion is provided in the solid print layer adjacent to the light transmission window portion. .

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