JP3936663B2 - Veneer composite sheet, decorative article, and manufacturing method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a veneer composite sheet, a decorative article, a method for manufacturing a veneer composite sheet, and a method for manufacturing a decorative article for applying a wooden decoration to a plastic or metal base body.
[0002]
[Prior art]
As a method of imparting a high-class feeling to members constituting an interior panel in an automobile, a panel of an audio device, a box portion of a music box, or the like, there is a method of finishing the surface of these members into a wood grain pattern. However, if wood products are used for these parts, only the beautiful part of the grain can be used, so the cost increases significantly.
[0003]
Therefore, a method of adhering a veneer made by thinly slicing wood to the surface of a wooden base body is performed. In this method, after applying an adhesive to the base body, a base plate is placed on the base body, and then the base plate is ironed to adhere the base plate to the surface of the base body. Therefore, since only the veneer can be seen from the surface, it is possible to manufacture a decorative product having a good appearance regardless of the quality of the wood grain pattern on the surface of the base body.
[0004]
Moreover, a transparent surface protective coating layer may be formed thickly on the surface of the protruding plate to protect the protruding plate and make the unevenness of the protruding plate inconspicuous.
[0005]
Furthermore, it is considered to use a veneer composite sheet in which a transparent plastic sheet is bonded to the surface of the veneer as a surface protective layer (see, for example, Patent Document 1).
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 7-223206 (2nd page to 3rd page, FIG. 1)
[0007]
[Problems to be solved by the invention]
However, this type of decorative product is required to have high quality and is also strongly required to be inexpensive.
[0008]
However, in the method of forming a transparent surface protective coating layer on the surface of the veneer, a thick surface protective coating layer of 400 μm or more is required. To form such a thick surface protective coating layer, the coating agent is applied several times. Need to be applied again. For this reason, there is a problem that the production efficiency is low. Further, when the surface protective coating layer is formed thick, there is a problem that high dimensional accuracy cannot be obtained and the decorative article cannot be fitted in a predetermined position.
[0009]
On the other hand, when a veneer composite sheet with a transparent plastic sheet bonded as a surface protective layer is used, the production efficiency is high and high dimensional accuracy can be obtained. Has a problem that it is easily stretched and misaligned between the protruding plate and the plastic sheet. Further, the surface of the decorative article may be mirror-polished to improve the quality, but there is a problem that polishing is difficult when the surface protective layer is formed of a plastic sheet.
[0010]
In view of the above problems, in the present invention, a veneer composite sheet capable of further improving the production efficiency of decorative items and further improving the quality of decorative surfaces, decorative items using the same, and those It is in providing the manufacturing method of.
[0011]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is a veneer composite sheet that is adhered to a base body made of plastic or metal, and is formed at least on a veneer obtained by slicing wood thinly and on the surface of the veneer. A base adhesive layer impregnated in at least a surface layer of the projecting plate; and a plastic sheet adhered to the surface side of the projecting plate on which the base adhesive layer is formed via a hot melt adhesive layer. It is characterized by that.
[0012]
In the decorative article using the veneer composite sheet according to the present invention, the veneer composite sheet is adhered to the surface of the base body, and a transparent surface protective coating layer is formed on the surface of the plastic sheet.
[0013]
In the present invention, the surface of the surface protective coating layer is preferably polished.
[0014]
In the present invention, since the plastic sheet is formed on the surface side of the projecting plate at the stage of the projecting plate composite sheet, this plastic sheet can be used as a part of the surface protective layer. For this reason, when forming a surface protection coating layer on the surface of a plastic sheet, the surface protection coating layer may be thin. Therefore, since the number of times of applying the coating agent can be reduced, the production efficiency of the decorative product can be improved. Further, since the surface protective coating layer is thin, high dimensional accuracy can be obtained, and there is no problem when the decorative article is fitted in a predetermined position. Furthermore, if a surface protective coating layer is formed on the surface of the plastic sheet, the surface protective coating layer can be polished, so that a high-quality decorative product can be manufactured by polishing the surface. . Furthermore, a plastic sheet is bonded to the surface of the veneer where the base adhesive layer is formed via a hot melt adhesive layer, but the base adhesive layer is impregnated in the veneer. The adhesion between the veneer and the plastic sheet is high. In addition, since the underlayer adhesive layer is impregnated in the veneer, the veneer does not expand or contract even if there is a change in temperature or humidity. Therefore, no positional deviation occurs between the protruding plate and the plastic sheet. Therefore, even if the unevenness on the surface of the veneer is completely eliminated by forming the surface protective coating layer or polishing the surface protective coating layer, the plastic sheet does not shift, so the unevenness on the surface of the veneer is on the surface of the decorative product. Etc. never come out. Therefore, the quality of the decorative surface is high and the high quality is maintained for a long time.
[0015]
In the present invention, the plastic sheet is, for example, a transparent plastic sheet.
[0016]
In the present invention, a colored plastic sheet may be used as the plastic sheet. When such a colored plastic sheet is used, the hue of the veneer and the hue of the plastic sheet can be combined, and the hue of the veneer can be covered. Therefore, ornaments of various designs can be manufactured at low cost.
[0017]
In the present invention, as the plastic sheet, a plastic sheet on which a pattern is printed may be used. With woody ornaments, the number, color, shape, etc. of the wood grain and nodes may be required to satisfy certain conditions. To meet these requirements, natural wood is obtained by slicing. There is a case that it is not possible to cope with the protruding veneer. In such a case, if the wood grain and nodes are printed on the plastic sheet, the conditions such as the number, color, and shape for the wood grain and nodes can be satisfied, so that a decorative product can be manufactured at low cost.
[0018]
In order to produce the veneer composite sheet according to the present invention, a base adhesive is applied to the surface of a veneer formed by thinly slicing wood, and at least the surface layer of the veneer is impregnated with the base adhesive, The plastic sheet on which the adhesive layer is formed is thermocompression-bonded to the surface side of the protruding plate on which the base adhesive layer is formed via the hot melt adhesive layer.
[0019]
In order to manufacture a decorative article using the veneer composite sheet according to the present invention, a first step of applying an adhesive to a base body made of plastic or metal, and the surface of the plastic sheet to the base body A second step of covering the projecting plate composite sheet toward the surface, and covering the base plate with the projecting plate composite sheet in the decompression chamber among the decompression chamber and the pressurization chamber partitioned through the deformable pressurization sheet. The decompression chamber is depressurized in a state in which the workpiece is disposed, and a heated fluid is supplied into the pressurization chamber, so that the projecting plate composite sheet is placed on the base body surface side in the work in the decompression chamber by the pressurization sheet. And a fourth step of forming a transparent surface protective coating layer on the surface of the plastic sheet. In this method, when manufacturing a decorative article in which a veneer composite sheet is bonded to the surface side of the base body, air is evacuated from the space between the veneer composite sheet and the base body in the decompression chamber so that the veneer composite sheet and the base body are brought into close contact with each other. After that, the surface of the projecting plate composite sheet is pressed from the pressure chamber via the pressure sheet. Alternatively, while pressing the surface of the veneer composite sheet from the pressurization chamber via the pressure sheet, the decompression chamber is depressurized and the air is extracted from between the veneer composite sheet and the base body. And make it close. As a result, the pressure sheet is deformed according to the shape of the surface of the base body, and the protruding plate composite sheet is uniformly pressed along the surface of the base body. Therefore, unlike the method of bonding the veneer composite sheet and the base body by ironing from the surface to the side of the veneer composite sheet, it does not take much time to bond the veneer composite sheet from the surface of the base body to the side. . Moreover, since the base body is made of plastic or metal, it can be manufactured at a low cost by any method such as molding.
[0020]
In the present invention, it is preferable to perform a fifth step of polishing the outermost layer of the surface protective coating layer.
[0021]
This invention is effective when the area | region which adhere | attaches the said veneer composite sheet among the said base bodies has a three-dimensional shape or an uneven | corrugated pattern.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
A method for manufacturing a decorative article to which the present invention is applied will be described with reference to the drawings.
[0023]
1A, 1B, 1C, and 1D are process diagrams illustrating a method for manufacturing a decorative article according to the present embodiment. FIGS. 2A and 2B are an explanatory view of a veneer composite sheet used in the method for manufacturing a decorative article according to the present embodiment, and an explanatory view showing components of the veneer composite sheet. 3 (A) and 3 (B) are explanatory views showing a state obtained by slicing a veneer sheet used in the method for manufacturing a decorative article according to this embodiment from wood, and an explanation of a colored veneer sheet dyed with this veneer. FIG. FIGS. 4A, 4 </ b> B, 4 </ b> C, and 4 </ b> D are process cross-sectional views illustrating processes performed in the vacuum press machine among the processes performed in the method for manufacturing a decorative article according to the present embodiment.
[0024]
[Composition of decoration]
In FIG. 1 (A), in this embodiment, FIG. 2 (A) and FIG. 2 (B) are referred to on the surface side of a base body 10 made of a plastic molded product such as ABS resin or a metal molded product made of magnesium or aluminum. Then, a veneer composite sheet 20 to be described later is adhered to give a grain pattern, and then a surface protective coating layer is formed on the surface, and the surface of the surface protective coating layer is subjected to mirror polishing. . The base body 10 manufactures panels such as interior / exterior panels and parts of automobiles, OA equipment such as acoustic equipment and personal computers, electronic equipment such as light electrical appliances and mobile phones, steel furniture, musical instruments, kitchen equipment, and construction members. For this purpose, the surface 11 is a flat surface, but has an R shape from the surface 11 to the side surface 12.
[0025]
[Configuration of veneer composite sheet]
As shown in FIG. 2 (A), the veneer composite sheet 20 used in this embodiment includes a veneer 21 obtained by slicing a natural wood thinly to a thickness of, for example, 0.25 mm, and a transparent plate formed on the surface of the veneer 21. A transparent plastic sheet 24 having a thickness of, for example, 40 μm, bonded to the surface side of the base adhesive layer 22 and the surface of the protruding plate 21 on which the base adhesive layer 22 is formed via a transparent hot-melt adhesive layer 23. And have. A back sheet 26 made of nonwoven fabric or paper is attached to the back surface of the protruding plate 21 with an adhesive 27.
[0026]
Here, the base adhesive layer 22 is partially impregnated in the protruding plate 21 and soaks into the surface layer of the protruding plate 21.
[0027]
In this embodiment, the base adhesive layer 22 or the adhesive 27 includes a vinyl acetate adhesive, a urea adhesive, a urethane adhesive, an epoxy adhesive, a rubber adhesive, a melamine adhesive, and a phenol adhesive. An adhesive, an acrylic adhesive, a cyano adhesive, a polyester adhesive, or the like can be used.
[0028]
As the hot melt adhesive layer 23, a styrene-isobutylene-based, styrene-butadiene-based, ethylene vinyl acetate or the like using a block polymer can be used.
[0029]
As the plastic sheet 24, a polyethylene sheet, a polypropylene sheet, a cellophane sheet, an acetate sheet, a polyvinyl chloride sheet, a polystyrene sheet, a polyester sheet, a nylon sheet, a saran sheet, an acrylic sheet, or the like can be used.
[0030]
In order to manufacture the veneer composite sheet 20 configured as described above, as shown in FIGS. 2A and 2B, first, the back sheet 26 is bonded to the back surface of the veneer 21 formed by thinly cutting wood. On the other hand, a thermoplastic or thermosetting base adhesive layer 22 is formed on the surface of the veneer 21, while a plastic sheet 24 on which a hot melt adhesive layer 23 is formed is prepared.
[0031]
Next, the hot melt adhesive layer 23 is thermocompression-bonded toward the surface side of the projecting plate 21 to adhere the plastic sheet 24 to the projecting plate 21 via the hot melt layer 23 and the base adhesive layer 22.
[0032]
Here, the veneer 21 may be soaked in a coloring liquid containing a dye, and then decompressed, impregnated with the colored liquid 21 and then dried, so that the wood pattern of the veneer 21 is darkened. is there. In other words, the density of the grain pattern of the veneer 21 varies depending on the wood used as the raw material, but if the veneer 21 is colored, a thin grain as shown in FIG. 3A becomes as shown in FIG. The darkness of the grain pattern can be eliminated. Accordingly, it is possible to manufacture a decorative product with stable quality at low cost.
[0033]
In this case, the veneer 21 may be bleached and then colored with a coloring liquid. If the bleaching process is performed before the veneer 21 is colored, the stains attached to the veneer 21 can be removed by the bleaching process.
[0034]
[Method of manufacturing ornaments]
In order to manufacture a decorative article using the veneer composite sheet 20 configured as described above, first, as shown in FIG. 1B, a thermosetting or thermoplastic adhesive is applied from the surface 11 to the side surface 12 of the base body 10. The agent 30 is applied (first step). As this adhesive 30, vinyl acetate adhesive, urea adhesive, urethane adhesive, epoxy adhesive, rubber adhesive, melamine adhesive, phenol adhesive, acrylic adhesive, cyano adhesive An adhesive or the like can be used.
[0035]
Next, as shown in FIG. 1C, the protruding plate composite sheet 20 is covered on the surface side of the base body 10, and in this state, the surface of the protruding plate composite sheet 20 extends along the surface 11 and the side surface 12 of the base body 10. (2nd process).
[0036]
Next, as shown in FIG. 3A, the work 1 with the protruding plate composite sheet 20 covered on the surface side of the base body 10 is put on a vacuum press 50. In this vacuum press machine 50, a decompression chamber 51 and a pressurization chamber 52 are vertically formed through a deformable pressure sheet 53 made of a silicon rubber sheet or the like, and is formed on a stage 54 in the decompression chamber 51. The workpiece 1 covered with the protruding plate composite sheet 20 is placed on the surface 11 side of the base body 10. In the decompression chamber 51, a number of suction holes 551 are formed on the lower surface 55, and these suction holes 551 are connected to a vacuum pump 57 via a common suction path 56. In addition, a heating air supply device 58 incorporating a heater 581 is connected to the pressurizing chamber 52, and this heating air supply device 58 can supply the air heated by the heater 581 into the pressurizing chamber 52 at a high pressure. It is.
[0037]
In the vacuum press 50 having such a configuration, the third step is performed. In this embodiment, as the third step, first, as shown in FIG. 3B, the vacuum pump 57 is operated to decompress the interior of the decompression chamber 51. At this time, the pressure sheet 53 is in a state of moving downward. As a result, air is removed from between the projecting plate composite sheet 20 and the base body 10, and the pressure sheet 53 is pulled toward the decompression chamber 51 to cover the projecting plate composite sheet 20. 20 is in close contact with the surface 11 and the side surface 12 of the base body 10.
[0038]
Next, heated compressed air is supplied from the heated air supply device 58 into the pressurized chamber 52. As a result, as shown in FIG. 3 (C), the pressure sheet 53 swells toward the decompression chamber 51 and adheres to the surface 11 of the veneer composite sheet 20 with a pressure of, for example, several tens kg / cm ² . The protruding plate composite sheet 20 is uniformly pressed toward the base body 10, and the protruding plate composite sheet 20 is pressed uniformly against the surface 11 and the side surface 12 of the base body 10. In addition, the adhesive 30 is heated to, for example, a temperature of 100 ° C. or higher via the pressure sheet 53 between the protruding plate composite sheet 20 and the base body 10. Therefore, the protruding plate composite sheet 20 and the base body 10 are bonded via the adhesive 30 in a pressurizing time of about several minutes.
[0039]
In the third step, depending on the shape of the base body 10, first, heated compressed air is supplied to the pressurizing chamber 52 to press the surface of the projecting plate composite sheet 20 through the pressurizing sheet 53. In this state, the inside of the decompression chamber 51 may be decompressed to remove air from between the protruding plate composite sheet 20 and the base body 10 so that the protruding plate composite sheet 20 and the base body 10 are brought into close contact with each other.
[0040]
Next, as shown in FIG. 3D, both the decompression chamber 51 and the pressurization chamber 52 are opened to the atmosphere, and the pressurization sheet 53 is moved upward, and then the workpiece 1 is taken out from the vacuum press machine 50. .
[0041]
Thereafter, as shown in FIG. 1D, a transparent coating agent 40 is applied to the surface 21 of the veneer sheet 20, and then the coating agent 40 is solidified to form a surface protective coating layer 41 having a thickness of, for example, 200 μm. Is formed (fourth step).
[0042]
The coating agent 40 used here is a urethane-based, polyester-based, acrylic-based, or epoxy-based coating agent.
[0043]
Next, the surface of the surface coating layer 41 is mirror-polished with a chamois or the like (fifth step).
[0044]
As a result, the workpiece 1 becomes a decorative article in which the wood-patterned veneer composite sheet 20 is bonded to the surface of the base body 10. In such a work 1 (decorative article), only the veneer composite sheet 20 can be seen from the surface 11. Therefore, regardless of the material of the base body 10, it can be used as a decorative item with a nice grain.
[0045]
Further, in this embodiment, even if the veneer composite sheet 20 is pasted from the surface 11 to the side surface 12 of the base body 10 to give a three-dimensional or three-dimensional grain pattern, the veneer composite sheet 20 and the base body are reduced in the decompression chamber 51. After the air is removed from between 10 and the veneer composite sheet 20 and the base body 10 are brought into close contact with each other, the surface 11 of the veneer composite sheet 20 is pressed with a heating sheet. Therefore, unlike the method of bonding the veneer composite sheet 20 and the base body 10 by ironing from the surface 11 to the side surface 12 of the veneer composite sheet 20, the veneer composite sheet 20 is bonded from the surface 11 to the side surface 12 of the base body 10. There is no need to spend a lot of time to do it.
[0046]
Furthermore, according to the method of the present embodiment, there is an advantage that it can be manufactured at low cost even when only one decorative article is manufactured instead of mass production.
[0047]
Furthermore, since the base body 10 is a plastic molded product or a metal molded product, unlike the wooden base body, there is an advantage that an arbitrary shape can be manufactured at low cost.
[0048]
In the present embodiment, since the plastic sheet 24 is formed on the surface side of the protruding plate 21 at the stage of the protruding plate composite sheet 20, the plastic sheet 24 can be used as a part of the surface protective layer. For this reason, when forming the surface protective coating layer 41 on the surface of the plastic sheet 24, the surface protective coating layer 41 may be thin. Therefore, since the number of times of applying the coating agent 40 can be reduced, the production efficiency of the decorative product can be improved.
[0049]
Further, since the surface protective coating layer 41 is thin, high dimensional accuracy can be obtained, and there is no problem when fitting the decorative article in a predetermined position.
[0050]
Further, if the surface protective coating layer 41 is formed on the surface of the plastic sheet 24, the surface protective coating layer 41 can be polished, so that the surface is polished to produce a high-quality decorative article. be able to.
[0051]
Furthermore, a plastic sheet 24 is bonded to the surface of the protruding plate 21 on which the base adhesive layer 22 is formed via a hot melt adhesive layer 23, and the base adhesive layer 22 is attached to the surface of the protruding plate 21. It is in a state of being impregnated. Therefore, the adhesion between the protruding plate 21 and the plastic sheet 24 is high. In addition, since the base plate adhesive layer 22 is impregnated in the projecting plate 21, the projecting plate 21 does not expand or contract even when there is a temperature change or humidity change. For this reason, a position shift does not occur between the protruding plate 21 and the plastic sheet 24. Therefore, even when the unevenness on the surface of the protruding plate 21 or the like is completely lost by forming the surface protective coating layer 41 or polishing the surface protective coating layer 41, the plastic sheet 24 is not displaced, so Unevenness such as the surface of the veneer does not come out. Therefore, the quality of the decorative surface is high and the high quality is maintained for a long time.
[0052]
(Other embodiments)
In the above embodiment, a plastic molded product is used as the base body 10. However, the base body 10 may be made of metal such as aluminum, aluminum alloy, magnesium, or magnesium alloy. In this case, if the base body 10 made of magnesium or the base body 10 made of magnesium alloy is used, the weight can be further reduced as compared with the case where the base body 10 made of aluminum or aluminum alloy is used. it can.
[0053]
Moreover, in the said form, it was the structure which sticks the veneer composite sheet 20 from the surface 11 of the base body 10 to the side surface 12, and gives a three-dimensional and three-dimensional wood grain pattern, but an uneven | corrugated pattern is attached to the surface of the base body 10. Even if it is applied, if the present invention is applied, the veneer composite sheet 20 can be adhered in accordance with the uneven pattern without much effort.
[0054]
Furthermore, in the said form, although the transparent sheet was used as the plastic sheet 24, a colored plastic sheet may be used. When such a colored plastic sheet is used, the hue of the protruding plate 21 and the hue of the plastic sheet 24 can be combined, and the hue of the protruding plate 21 can be covered. Therefore, ornaments of various designs can be manufactured at low cost.
[0055]
Further, as the plastic sheet 24, a plastic sheet on which a pattern is printed may be used. With woody ornaments, the number, color, shape, etc. of the wood grain and nodes may be required to satisfy certain conditions. To meet these requirements, natural wood is obtained by slicing. In some cases, the protruding plate 21 cannot cope with it. In such a case, if a wood grain or a node is printed on the plastic sheet 24, conditions such as the number, color, shape, etc. for the wood grain or the node can be satisfied, so that an ornament can be manufactured at a low cost.
[0056]
【The invention's effect】
As described above, in the present invention, since the plastic sheet is formed on the surface side of the veneer at the stage of the veneer composite sheet, the surface protective coating layer is formed when the surface protective coating layer is formed on the surface of the plastic sheet. It can be thin. Therefore, since the number of times of applying the coating agent can be reduced, the production efficiency of the decorative product can be improved. Further, since the surface protective coating layer is thin, high dimensional accuracy can be obtained, and there is no hindrance to fitting the decorative article in a predetermined position. Furthermore, since the surface protective coating layer can be polished, the surface can be polished to produce a high-quality decorative article. Furthermore, since the base adhesive layer is impregnated on the surface of the veneer, the adhesion between the veneer and the plastic sheet is high. In addition, since the base plate is impregnated with the base adhesive layer, the base plate does not expand or contract even if a change in temperature or humidity occurs. Therefore, no positional deviation occurs between the protruding plate and the plastic sheet. Therefore, even if the unevenness on the surface of the veneer is completely eliminated by forming the surface protective coating layer or polishing the surface protective coating layer, the plastic sheet does not shift, so the surface of the veneer etc. Unevenness does not come out. Therefore, the quality of the decorative surface is high and the high quality is maintained for a long time.
[Brief description of the drawings]
FIGS. 1A to 1D are process diagrams showing a method for manufacturing a decorative article to which the present invention is applied.
FIGS. 2A and 2B are an explanatory view of a veneer composite sheet used in the method for manufacturing a decorative article according to the present embodiment, and an explanatory view showing components of the veneer composite sheet.
FIGS. 3A and 3B are explanatory views showing a state obtained by slicing a veneer sheet used in the method for manufacturing a decorative article according to the present embodiment from wood, and a colored veneer sheet dyed with the veneer. FIGS. 4A to 4D are process cross-sectional views illustrating processes performed in a vacuum press machine among processes performed in a method for manufacturing a decorative article to which the present invention is applied.
[Explanation of symbols]
1 Workpiece (decoration)
DESCRIPTION OF SYMBOLS 10 Base body 11 Base body surface 12 Base body side face 20 Veneer composite sheet 21 Veneer board 22 Base adhesive layer 23 Hot melt adhesive layer 24 Plastic sheet 26 Back sheet 27 Adhesive 30 Adhesive 40 Coating agent 41 Surface protective coating Layer 50 Vacuum press machine 51 Decompression chamber 52 Pressurization chamber 53 Pressurization sheet 54 Stage 55 Decompression chamber lower surface 56 Common suction path 57 Vacuum pump 58 Heated air supply device 551 Suction hole 581 Heater

Claims (10)

A veneer composite sheet adhered to a base body made of plastic or metal,
At least a veneer formed by thinly slicing wood, a base adhesive layer formed on the surface of the veneer and impregnated in at least a surface layer of the veneer, and the base adhesive layer of the veneer are formed. And a plastic sheet bonded to the surface side through a hot melt adhesive layer. 2. The veneer composite sheet according to claim 1, wherein the plastic sheet is a transparent plastic sheet. 2. The veneer composite sheet according to claim 1, wherein the plastic sheet is a colored plastic sheet. 2. The veneer composite sheet according to claim 1, wherein the plastic sheet is a plastic sheet on which a pattern is printed. A decorative article characterized in that the veneer composite sheet defined in any one of claims 1 to 4 is adhered to the surface of a base body, and a transparent surface protective coating layer is formed on the surface of the plastic sheet. . 6. The decorative article according to claim 5, wherein the surface of the surface protective coating layer is polished. A method for producing a veneer composite sheet to be adhered to a base body made of plastic or metal,
A base adhesive is applied to the surface of a veneer made by thinly slicing wood, and at least a surface layer of the veneer is impregnated with the base adhesive, while a plastic sheet on which a hot melt adhesive layer is formed is attached to the veneer. A method for producing a veneer composite sheet, characterized by thermocompression bonding via a hot melt adhesive layer to a surface side on which the base adhesive layer is formed. A method for manufacturing a decorative article using a veneer composite sheet as defined in any one of claims 1 to 4,
A first step of applying an adhesive to a base body made of plastic or metal; a second step of covering the base body with the plastic sheet facing the surface; Among the decompression chamber and the pressurization chamber partitioned through the pressurization sheet, the decompression chamber is decompressed in a state in which the work having the base body covered with the projecting plate composite sheet is disposed in the decompression chamber, A third step of affixing the protruding plate composite sheet in close contact with the surface of the base body in the work in the decompression chamber by supplying a heating fluid into the chamber; and a surface of the plastic sheet And a fourth step of forming a transparent surface protective coating layer. 9. The method for manufacturing a decorative article according to claim 8, further comprising a fifth step of polishing the outermost layer of the surface protective coating layer. 10. The method for manufacturing a decorative article according to claim 8, wherein a region of the base body to which the protruding plate composite sheet is bonded has a three-dimensional shape or an uneven pattern.

Images