JP2007125792A - Decorative plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative plate which can carry out decoration and adhesion in one process and reduce a production cost, for example, by reducing the amount of a used adhesive. <P>SOLUTION: The decorative plate comprises a substrate and a permeable surface material adhered to at least one side of the substrate. The substrate and the surface material are bonded and decorated simultaneously by being bonded through a colored adhesive layer. In the colored adhesive layer, an application area is formed by pattern application of 40-80%. The surface material is formed by a transparent or translucent resin sheet 0.5-5.0 mm in thickness. The surface material is formed by a transparent or translucent resin sheet. The surface material is formed in a plurality of layers. These are adhered to each other or to the substrate through a plurality of the colored adhesive layers of the same pattern or different patterns. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a decorative board that can be suitably used as an exterior material of home appliances such as a wall panel such as a unit bath, a refrigerator door, and a fan heater outer plate.

Conventionally, this type of decorative board is a laminate of a polyester resin film such as a polyethylene terephthalate resin film (PET film) with a gravure printed on the back surface and a thermoplastic resin film (polyvinyl chloride resin, polyolefin resin, etc.). What laminated | stacked the film on the steel plate which is a base material via the adhesive agent is known. In addition, as another decorative plate, a steel plate as a base material is subjected to gravure printing and then a clear coating is applied thereon (see Patent Document 1), or an acrylic resin is projected on the decorative sheet surface. There are known ones that are printed or coated and UV-cured to give a concavo-convex pattern (see Patent Document 2).
JP 2000-52486 A Japanese Unexamined Patent Publication No. Hei 3-197040

  However, in such a decorative board, an embossing roll (hereinafter, a roll having an uneven embossing shape is referred to as a pattern roll) is used only for the purpose of decoration such as printing, and the printed decorative sheet and embossing are used. Since the processed decorative board is bonded to the base material in a separate process, the manufacturing process of the decorative board requires an adhesion process and a printing process, which can shorten the lead time during decorative panel production and reduce production costs. Have difficulty. In addition, since the adhesive is basically applied to the entire surface, the amount of the adhesive used is increased, which hinders a reduction in production cost.

  The present invention has been made in view of such circumstances, and its purpose is to reduce the production cost by, for example, reducing the amount of adhesive used while performing decoration and bonding in one step. It is in providing the decorative board which can be planned.

  In order to achieve this object, the invention according to claim 1 of the present invention includes a base material and a permeable surface material bonded to at least one surface of the base material. The surface material and the surface material are bonded through a colored adhesive layer, whereby adhesion and decoration are performed simultaneously.

  The invention according to claim 2 is characterized in that the colored adhesive layer is formed by pattern application with an application area of 40% to 80%, and the invention according to claim 3 is characterized in that the surface material is Is formed of a transparent or translucent resin sheet having a thickness of 0.5 mm to 5.0 mm. Furthermore, in the invention according to claim 4, the surface material is formed in a plurality of layers, and these are bonded to each other or bonded to a substrate through a plurality of colored adhesive layers having the same pattern or different patterns. It is characterized by. The invention described in claim 5 is characterized in that the base material is formed in a plurality of layers, and these are bonded with a predetermined adhesive.

  According to invention of Claim 1 among this invention, since adhesion | attachment and decoration are performed simultaneously by a base material and a surface material being adhere | attached through a colored adhesive bond layer, decoration and adhesion | attachment are carried out. This can be done in one step, and the lead time during the production of the decorative board can be shortened, or the production cost can be reduced by reducing the amount of the colored adhesive used.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, since the colored adhesive layer is formed by pattern application with an application area of 40% to 80%, The decoration state can be easily obtained and the amount of the colored adhesive used can be surely reduced.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the surface material is formed of a transparent or translucent resin sheet having a thickness of 0.5 mm to 5.0 mm. Therefore, the colored adhesive layer can be surely visually recognized from the surface material by the resin sheet having the optimum thickness, and a good decorative state can be obtained on the decorative board.

  Furthermore, according to the invention described in claim 4, in addition to the effects of the invention described in claims 1 to 3, the surface material is formed in a plurality of layers, and these are a plurality of colored adhesive layers having the same pattern or different patterns. Therefore, it is possible to selectively use colored adhesive layers of various patterns and to easily apply a desired decoration to the decorative board.

  According to the invention described in claim 5, in addition to the effects of the invention described in claims 1 to 4, the base material is formed in a plurality of layers, and these are bonded by a predetermined adhesive. Each base material can be formed with the same roll and can be adhered to each other, so that it can be easily applied to various base materials.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 3 show a first embodiment of a decorative board according to the present invention, FIG. 1 is a schematic sectional view, FIG. 2 is an explanatory view of the manufacturing method, and FIG. 3 is a main part of a pattern roll. It is a perspective view.

  As shown in FIG. 1, the decorative board 1 includes a base material 2 and a surface material 3 laminated on the surface 2 a side of the base material 2 via a colored adhesive layer 4. As the base material 2, plywood, MDF, particle board, plated steel plate, aluminum plate, low / high foam heat insulating material and the like are selected and used according to the use of the decorative board 1. Further, the surface material 3 is transparent or translucent having transparency such as acrylic, polycarbonate, polypropylene (polyethylene, polyolefin), ABS, PET, polyvinyl chloride resin, etc. From the relationship between rigidity as a surface material and material cost. For example, it is formed of a resin sheet having a thickness of 0.5 mm to 5.0 mm.

  Further, the colored adhesive layer 4 is formed of a colored adhesive 4a in which a pigment or dye is mixed into a base adhesive and colored to a predetermined color. , Non-solvent based adhesives for VOC are used. In addition, as an adhesive, use one-component moisture-curing polyurethane / polyester-based aromatic MDI or aliphatic HDI colored with pigments or dyes, or reversible hot melt adhesives for printing and bonding. Can be used at the same time. The colored adhesive layer 4 is formed by pattern coating (or pattern printing coating) on the back surface 3b of the manifestation material 3 as will be described later.

  Next, an example of the manufacturing method of the decorative board 1 having such a configuration will be described with reference to FIGS. FIG. 2 shows an adhesive applicator 5 used for manufacturing the decorative board 1, and this adhesive applicator 5 has a pattern roll 6 (embossing roll) and a temperature-adjustable split blade 7, and is temperature-adjusted. An adhesive reservoir 8 is formed between the tip of the split blade 7 and the pattern roll 6.

  The pattern roll 6 has, on the surface thereof, for example, a lattice-like ridge 6a as shown in FIG. 3 and a recess 6b formed between the ridges 6a for obtaining a desired decoration on the surface of the decorative board 1. have. At this time, the area of the recess 6b of the pattern roll 6 is set to about 40% of the outer peripheral area, and the depth of the recess 6b is set to 0.8 mm. In addition, the pattern roll 6 is formed by embossing by a technique such as original pressing by machining or etching of NC or the like, and the final finish is formed by chrome plating.

  And the coloring adhesive 4a is apply | coated to the back surface 3b (or surface 2a of the base material 2) of the surface material 3 which is a to-be-adhered body, rotating such a pattern roll 6. FIG. At this time, the color adhesive 4a adhering to the convex part 6a of the pattern roll 6 is scraped off by the dimension setting of the tip part of the temperature-adjusting split blade 7 and the pattern roll 6, and the color adhesive 4a remaining in the concave part 6a. Only remains. Thereby, the colored adhesive 4a applied to the back surface 3b of the surface material 3 by the pattern roll 6 is not the entire back surface 3b of the surface material 3, but only the colored adhesive 4a remaining in the recess 6b is the back surface 3b of the surface material 3. As a result, a lattice pattern is formed on the back surface 3b of the surface material 3 by the colored adhesive 4a corresponding to the pattern of the recess 6b. In addition, although the coloring adhesive 4a on the convex part 6a cannot be scraped completely and may remain a little, it should just be possible to give a desired decoration.

  Next, the base material 2 and the surface material 3 are bonded and decorated with the colored adhesive 4a, for example, by simultaneously heating and pressing the surface material 3 and the base material 2 coated with such a colored adhesive 4a. Are performed simultaneously, and a decorative board 1 having a laminated structure of the base material 2, the colored adhesive layer 4 and the surface material 3 as shown in FIG. 1 is manufactured. The lattice pattern of the colored adhesive 4 applied to the back surface 3b through the surface material 3 is visually recognized as a decoration from the surface of the decorative board 1, that is, the surface 3a of the transparent or translucent surface material 3. Will be.

  In the decorative board 1 of the first embodiment, the reason why the area of the recess 6b of the pattern roll 6 is set to 40% is based on the relationship between the recess area and the adhesive strength shown in Table 1 obtained by experiment. ing. From Table 1, it can be seen that if the recess area is set to 40% or more, sufficient adhesive strength for the decorative board 1 (60% or more in the case of full-face adhesion) can be obtained.

  Thus, according to the decorative board 1 of the said embodiment, since the base material 2 and the surface material 3 are adhere | attached through the coloring adhesive layer 4, adhesion | attachment and decoration are performed simultaneously, It is not necessary to perform the bonding in a separate process as in the prior art, and the lead time during production of the decorative board 1 can be shortened, and the colored adhesive 4a is applied to, for example, a lattice pattern instead of the entire surface. The amount of the colored adhesive 4a itself can be reduced. In particular, even if the bonding area (recessed area) by the colored adhesive 4a is set to 40%, sufficient adhesive strength can be obtained as the decorative board 1, so that the amount of the colored adhesive 4a used is, for example, about 1/2. From these, it is possible to reduce the production cost of the decorative board 1.

  Further, since a transparent / semi-transparent resin sheet having a thickness of 0.5 mm to 5.0 mm is used as the surface material 3, the colored adhesive layer 4 is formed by a resin sheet having an optimum thickness as the expression material 3 of the decorative board 1. The surface material 3 can be surely seen from the surface 3a, the surface 3a of the surface material 3 can be well decorated, and a predetermined rigidity can be secured as the surface material 3 of the decorative board 1. It is possible to suppress an increase in material cost (cost) of the surface material 3 itself.

  Furthermore, since the colored adhesive 4a is applied by pattern application or pattern printing application, a desired decoration state can be easily obtained on the colored adhesive layer 4 by using a printing method or the like, and various decoration forms Can be easily accommodated. In addition, if a reactive hot melt is used as the colored adhesive 4a, the degree of foaming of the foaming gas generated during the moisture curing process is different from that of conventional printing inks by adjusting the adhesive composition and curing conditions. The decorative board 1 can be decorated in a conventional manner. From these things, it becomes possible to use the decorative board 1 suitably as a wall panel of a unit bath, for example.

  4 to 9 show second to seventh embodiments of the decorative board according to the present invention. Hereinafter, the same parts as those in the first embodiment will be described with the same reference numerals. First, the decorative board 1 of the second embodiment shown in FIG. 4 is characterized in that the colored adhesive layer 4 is formed by a two-layer structure of a colored adhesive 4a layer and a full-color solid printed coating layer 4b. . At this time, the layer of the colored adhesive 4a is formed on the back surface 3b of the surface material 3 by printing as described above, and the entire solid print coating layer 4b is formed on the surface 2a of the substrate 2 by painting or printing.

  Further, the decorative board 1 of the third embodiment shown in FIG. 5 has two base materials 10 and 11, and a colored adhesive 4 a is printed on the surface of each base material 10 and 11 by pattern printing. The back surface of the other base material 11 is adhered on the colored adhesive 4 a applied to the base material 10, and the surface material 3 is adhered on the colored adhesive 4 a of the other base material 11. In the case of this embodiment, the two base materials 10 and 11 can be formed with the same pattern roll, and the thickness of the entire base material can be easily adjusted by the thickness of the base materials 10 and 11 to be laminated.

  Further, the decorative board 1 of the fourth embodiment shown in FIG. 6 has two base materials 10 and 11, and the adhesive 12 is applied to the entire surface of one base material 10, and the other base material 11 is applied. The colored adhesive 4 a is printed on the surface of the substrate by pattern printing and both the base materials 10 and 11 are bonded through the adhesive 12. In the case of this embodiment, the two base materials 10 and 11 can be firmly bonded by the adhesive 12 applied on the entire surface, and, similarly to the third embodiment, the thickness of the entire base material 10 is laminated. The thickness can be easily adjusted by the thickness of 11.

  A feature of the decorative board 1 of the fifth embodiment shown in FIG. 7 is that a transparent / translucent surface material 3 and a back surface material 13 are arranged on the front and back surfaces 2 a and 2 b of the base material 2. That is, the surface material 3 is bonded to the surface 2a side of the base material 2 via the colored adhesive 4a, and the back surface material 13 is bonded to the back surface 2b side of the base material 2 via the colored adhesive 4a. At this time, the surface material 3 and the back surface material 13 can use the same material, thickness, or the like, or the material, thickness, or the like can be made different between the front and back surfaces 2 a, 2 b of the substrate 2. Further, the pattern (application pattern) of the colored adhesive 4a applied to the front and back surfaces 2a and 2b of the substrate 2 may be the same or different, and may be appropriately selected according to the use of the decorative board 1 and the like. Is done.

  Furthermore, the decorative board 1 of the sixth embodiment shown in FIG. 8 is characterized in that the surface material 3 is formed in a plurality of layers, and the first colored adhesive layer 4 is interposed on the surface 2a side of the substrate 2. Then, the first surface material 3B is bonded, and the second surface material 3A is bonded to the surface of the surface material 3A via the second colored adhesive layer 4. At this time, the patterns of the colored adhesive layers 4 may be the same or different, and the first surface material 3A and the second surface material 3B may use the same material, thickness, or the like. It can also be made different in material and thickness.

  Further, the feature of the decorative board 1 of the seventh embodiment shown in FIG. 9 is that a plurality of (two layers in the figure) colored adhesive layers 4 having different patterns are adjacent to each other. That is, the surface material 3 is bonded to the surface 2 a side of the substrate 2 through the first colored adhesive layer 4 and the second colored adhesive layer 4. At this time, the patterns of the first colored adhesive layer 4 and the second colored adhesive layer 4 are set to be different from each other, and the surface 3a side of the surface material 3 is determined by these two types (or three or more types) of patterns. The pattern when visually recognized from the above can be set in a complicated and desired manner, and the decorative panel 1 can be easily decorated that is not conventionally provided.

  Thus, the decorative board 1 according to the present invention can be applied to various forms having the base material 2 through the colored adhesive layer 4 on at least the back surface 3b side of the surface material 3. Further, the decorative board 1 according to the present invention is not limited to each of the above-described embodiments. For example, the configuration of the colored adhesive of the embodiment shown in FIG. 9 is changed to the colored adhesive of the other embodiments. A configuration in which a part or all of each embodiment is appropriately combined, such as application, is also included.

  In each of the above embodiments, the printing application by the pattern roll 6 is adopted as a means for forming the colored adhesive, but the present invention is not limited to this, and other appropriate printing means and application means are adopted. In addition, the decorative board 1 itself can be manufactured by any suitable method that can obtain a simultaneous laminate structure of at least the base material, the colored adhesive layer and the surface material.

  The present invention is not limited to use on a wall panel such as a unit bath, but can also be used on various decorative plates such as exterior doors for home appliances such as a refrigerator door and a fan heater outer plate.

Sectional drawing which shows 1st Embodiment of the decorative board concerning this invention Illustration of the manufacturing method Perspective view of the main part of the pattern roll Sectional view similar to FIG. 1 showing the second embodiment Sectional view similar to FIG. 1 showing the third embodiment Sectional view similar to FIG. 1 showing the fourth embodiment Sectional view similar to FIG. 1 showing the fifth embodiment Sectional view similar to FIG. 1 showing the sixth embodiment Sectional view similar to FIG. 1 showing the seventh embodiment

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Decorative plate, 2 ... Base material, 2a ... Front surface, 2b ... Back surface 3, 3A, 3B ... Surface material, 3a ... Front surface, 3b ... Back surface, 4 ... Colored adhesive layer, 4a ... Colored adhesive, 4b ... Solid printing coating layer, 5 ... Adhesive coating machine, 6 ... Pattern roll, 6a ... Projection, 6b .. Recessed part, 7 ... temperature-adjusted split blade, 8 ... adhesive reservoir, 10, 11 ... base material, 12 ... adhesive, 13 ... back material.

Claims (5)

  A substrate and a permeable surface material bonded to at least one surface of the substrate, and the substrate and the surface material are bonded and bonded by being bonded via a colored adhesive layer. A decorative board characterized by being decorated at the same time.   2. The decorative board according to claim 1, wherein the colored adhesive layer is formed by pattern application with an application area of 40% to 80%.   The decorative sheet according to claim 1 or 2, wherein the surface material is formed of a transparent or translucent resin sheet having a thickness of 0.5 mm to 5.0 mm.   The surface material is formed in a plurality of layers, which are bonded to each other or bonded to a substrate through a plurality of colored adhesive layers having the same pattern or different patterns. The decorative board according to any one of 3 above.   The decorative board according to any one of claims 1 to 4, wherein the base material is formed in a plurality of layers, and these are bonded by a predetermined adhesive.

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