JP4484181B2 - Cosmetic material with a feeling of painting - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wooden decorative material having a feeling of painting.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a cosmetic material in which a paint made of a cellulose resin, an acrylic resin, a urethane resin, a polyester resin, an amino alkyd resin, or the like is applied to the surface of a wooden substrate is known. However, the actual painting as described above has a problem that a large amount of solvent is released at the time of painting, so that the working environment is liable to be deteriorated and a large work place is required at the time of drying.
[0003]
For the cosmetic material obtained by actually applying the paint, for example, as described in Japanese Patent Publication No. 52-24552, a decorative sheet is flat-coated or lapped and laminated on the surface of the substrate. A resin film-attached decorative material is known as a decorative material obtained without painting. The decorative sheet is formed of, for example, a colored concealing resin (vinyl chloride resin, polyolefin resin, etc.) printed with a wood grain pattern, and the decorative sheet surface is provided with a recess such as a conduit groove by embossing or the like. It is configured by being laminated on a base material.
[0004]
However, the above cosmetic materials have the following problems (a) to (c).
(a) When the surface of the decorative sheet is not embossed, the decorative sheet laminated on the surface of the wooden substrate is simply laminated flat on the surface of the wooden substrate, and the decorative sheet is a conduit. Since it does not go into the inside of the groove and adhere to it, the printed pattern of the decorative sheet on the conduit part is raised from the conduit groove, and the design of the conduit part becomes a flat design, giving an unnatural feeling End up. In addition, when embossing is applied to the decorative sheet surface, the appearance of the conduit groove can be reproduced to some extent, but it is possible to align the position of the embossed conduit groove with the grain pattern of the conduit (registration). Difficult due to sheet elongation. In addition, it is difficult to faithfully reproduce the appearance of a natural conduit groove having a fine structure by embossing, and as a result, the natural wood surface appearance has not been reproduced.
(b) Since the paint is not actually applied and the decorative sheet is simply laminated, the paint feeling is extremely poor.
(c) Compared with the decorative material actually coated on the wooden base material, the wooden base material does not have the shiny luster inherent in the wooden base material and is insufficient in design.
[0005]
In addition to the above-described decorative materials, the following decorative materials are known as decorative materials formed by laminating decorative sheets without performing actual coating. For example, in Japanese Utility Model Publication Nos. 33-14390 and 63-93132, etc., the resin sheet is made transparent so that the natural wood shine is seen through the substrate itself. There is described a decorative material formed so as to obtain an appearance in which (gloss) and a printed wood pattern of a decorative sheet are synthesized.
[0006]
[Problems to be solved by the invention]
However, the above-mentioned decorative material improves the above-mentioned problems (b) and (c), but the printed pattern of the decorative sheet on the conduit part of (a) floats up from the conduit groove and becomes a flat design. However, it is difficult to faithfully reproduce the appearance of the conduit or the appearance of the conduit, and there is still a problem that the reproduction of the appearance including the unevenness of the conduit groove is insufficient.
[0007]
SUMMARY OF THE INVENTION The present invention aims to solve the above-mentioned drawbacks of the prior art, and in a decorative material formed by laminating decorative sheets without performing actual coating, the coating material has a feeling of painting and has unevenness in the conduit groove and illumination. It aims at providing the decorative material excellent in the design in which the external appearance of the wooden base material including this was reproduced well.
[0008]
[Means for Solving the Problems]
The present invention is (1) a two-component solution in which a polyol and an isocyanate are cross-linked sequentially on the surface side of a wood substrate having a conduit groove on the surface, through a transparent adhesive layer having a volume shrinkage upon solidification or curing. A decorative board on which a decorative sheet made by laminating a transparent easy adhesion primer layer made of a curable urethane resin, a transparent thermoplastic resin layer, and a transparent gloss adjusting layer made of a two-component curable urethane resin formed by crosslinking polyol and isocyanate is laminated. Because
On the surface in the conduit groove, a solidified or hardened transparent adhesive layer, a transparent easy adhesion primer layer, a transparent thermoplastic resin layer, and a transparent gloss adjusting layer are all bent along the surface shape in the conduit groove. And the surface of the transparent gloss adjusting layer is a recess corresponding to the conduit groove,
A decorative sheet was laminated just above the conduit groove Partial transparent thermoplastic layer thickness Was stacked on other than directly above the conduit groove Partial transparent thermoplastic layer thickness It is configured to be smaller than the above, and a decorative material with a paint feeling, characterized by
(2) A cosmetic material having a coating feeling according to the above (1), wherein at least the surface of the wooden substrate is colored in advance to give a depth.
(3) The gist is a decorative material having a coating feeling as described in (1) or (2) above, wherein the wood substrate is a laminate formed by laminating a veneer having a conduit groove on the surface of the wood fiber board. .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 shows an embodiment of the present invention.As shown in FIG. 1, the decorative material 1 having a coating feeling according to the present invention has a decorative sheet 10 on the surface side of a wooden substrate 5 with a transparent adhesive layer 6 interposed therebetween. It is constructed by stacking. The wood substrate 5 is obtained by laminating a protruding plate 5 having a conduit groove 4 on the surface of the wood fiber board 2 so that the conduit groove 4 is on the surface side.
[0010]
On the surface side of the transparent thermoplastic resin layer 8, the decorative sheet 10 is laminated with a transparent thermoplastic resin layer 8, and a transparent gloss adjusting layer 9 made of a two-component curable urethane resin formed by crosslinking polyol and isocyanate, A transparent easy-adhesion primer layer 7 made of a two-component curable urethane resin formed by crosslinking polyol and isocyanate is provided on the back side of the resin layer 8, and the transparent or adhesive layer 6 surface solidified or cured is transparent. It has a configuration in which an easy adhesion primer layer 7, a transparent thermoplastic resin layer 8, and a transparent gloss adjustment layer 9 are laminated.
[0011]
Further, on the surface of the decorative sheet 10 in the conduit groove 4, the transparent adhesive layer 6, the transparent easy-adhesive primer layer 7, the transparent thermoplastic resin layer 8, and the transparent gloss adjusting layer 9 are all provided on the inner surface of the conduit groove 4. The surface of the transparent gloss adjusting layer 9 is formed as a concave portion 11 corresponding to the conduit groove 4 and is bent along the shape.
[0012]
As described above, the decorative material of the present invention does not actually apply the coating simply by laminating the decorative sheet on the surface of the wooden substrate 5, but each layer of the decorative sheet is bent along the shape of the inner surface of the channel groove of the veneer, Since the surface of the transparent gloss adjusting resin layer on the surface of the sheet becomes a concave portion and each layer of the decorative sheet is formed transparent, it has a surface design (paint feeling) similar to the painted appearance.
[0013]
The wood substrate 5 may be any wood material having a conduit groove on its surface. And a laminated board obtained by laminating the veneer on the surface of the wood fiber board, a wood plywood, a laminated material, and the like. Examples of the wood fiber board include MDF (medium density fiber board), hard board, insulation board, and particle board. However, from the standpoint of effective use of resources, wood with beautiful conduit grooves is used only on the surface as a veneer, and the back side is cheap and readily available, and it is possible to increase the thickness by lining wood fiberboard that can be used as waste material. preferable.
The thickness of the protruding plate is preferably about 0.1 to 1 mm. The thickness of the wood fiber board is preferably about 1.5 to 10 mm.
[0014]
The wooden substrate 5 may be colored. It is performed with various known paints and dyes. In particular, so-called stain wiping in which a large amount of dye is filled in the conduit groove 4 is preferable. Further, the surface of the wooden substrate 5 may be bleached with a known bleaching agent. It is preferable to color at least the surface of the wood substrate in advance, since the effect of improving the design property by increasing the depth of shine can be obtained.
[0015]
The transparent adhesive layer 6 is for bonding the wooden substrate 5 and the decorative sheet 10 and has a transparency within a range that does not impair the design of the wooden substrate, and has a volume shrinkage when dried, solidified, or cured Is used. Specifically, volumetric shrinkage is caused by drying of water (solvent or dispersion medium) such as emulsions of polyvinyl acetate, ethylene vinyl acetate copolymers, acrylic resins, urethane resins, and water-soluble adhesives. A two-component curable adhesive that shrinks in volume at the time of curing and bonding is used, such as a water-based adhesive that is generated, or a two-component curable urethane resin, a two-component curable epoxy resin, and a one-component moisture curable urethane resin. Adhesives are water-soluble or emulsion-based adhesives that have volume shrinkage when dried and solidified, work environment sanitation and fire-proof (explosive) characteristics by not using organic solvents, and decorative sheets. It is preferable for reasons such as no influence of swelling and dissolution. The coating amount of the transparent adhesive layer 6 is 10 to 100 g / m. ² (Wet) is preferred.
[0016]
The transparent easy-adhesion primer layer 7 has versatility of adhesion to both transparent thermoplastic resin layers and adhesive layers, and deformation followability when the decorative sheet is bent into the conduit groove (flexibility) From this point, it is formed by coating a composition comprising a two-component curable urethane resin. The thickness of the transparent easy adhesion primer layer 7 is preferably 1 to 5 μm. The two-component curable urethane resin is a urethane resin mainly composed of polyol and isocyanate as a crosslinking agent (curing agent). As the polyol, one having two or more hydroxyl groups in the molecule, for example, polyethylene glycol, polypropylene glycol, acrylic polyol, polyester polyol, polyether polyol, polycarbonate polyol, polyurethane polyol and the like are used. As the isocyanate, a polyvalent isocyanate having two or more isocyanate groups in the molecule is used. For example, aromatic isocyanate such as 2,4-tolylene diisocyanate, xylene diisocyanate, 4,4'-diphenylmethane diisocyanate, or 1,6-hexamethylene diisocyanate, isophorone diisocyanate, hydrogenated tolylene diisocyanate, hydrogenated diphenylmethane diisocyanate, etc. Aliphatic (or alicyclic) isocyanates are used. Alternatively, adducts or multimers of the above various isocyanates can be used. For example, there are tolylene diisocyanate adducts, tolylene diisocyanate trimers, and the like. Of the above-mentioned isocyanates, aliphatic (or alicyclic) isocyanates are preferred in that they can be well weathered and heat-resistant yellowed, and specific examples include 1,6-hexamethylene diisocyanate.
[0017]
As the transparent thermoplastic resin layer 8, a thermoplastic resin sheet or film is used. As the thermoplastic resin sheet, an olefin resin is mainly used, but other resins such as a vinyl chloride resin (PVC), polyethylene terephthalate (PET), and an acrylic resin can also be used. Examples of the transparent thermoplastic resin layer include polyethylene, polypropylene, polybutene, polymethylpentene, ethylene-propylene copolymer, ethylene-propylene-butene copolymer, polyolefin resins such as olefin thermoplastic elastomer, polyethylene terephthalate, polybutylene Polyester resin such as terephthalate, ethylene terephthalate isophthalate copolymer, polyester thermoplastic elastomer, polymethyl (meth) acrylate, polybutyl (meth) acrylate, methyl (meth) acrylate-butyl (meth) acrylate copolymer, methyl (meth ) Acrylic resin such as acrylate-styrene copolymer [where (meth) acrylate means acrylate or methacrylate], polyamide resin such as nylon Vinyl chloride resin, ABS (acrylonitrile - butadiene - styrene copolymer) resin, AS (acrylonitrile - styrene copolymer) resin, polycarbonate resin, or urethane-based and other thermoplastic elastomers, thermoplastic resins and the like are used. Particularly in the case of polyolefin-based resins, it is desirable to generate polar groups such as carboxyl groups, hydroxyl groups, and carbonyl groups by corona discharge treatment, ozone treatment, etc. on the front, back, or both front and back surfaces to impart easy adhesion. .
[0018]
The transparent thermoplastic resin layer 8 preferably has high transparency (small haze). In addition, the thickness of the transparent thermoplastic resin layer 8 is preferably about 30 to 80 μm from the viewpoint of followability into the recessed portion (conduit groove) of the wooden substrate 5. In other words, if the thickness of the transparent thermoplastic resin layer 8 exceeds 80 μm, the decorative sheet may not be sufficiently adhered to the recessed portion, and voids may be generated, resulting in a decrease in design. If the thickness is less than 30 μm, a sufficient feeling of coating is obtained. There is a risk of not being able to. Further, the thermoplastic resin sheet constituting the transparent thermoplastic resin layer is more preferably a material that is uniaxially or biaxially stretched to give a certain degree of heat shrinkage.
[0019]
The transparent thermoplastic resin layer 8 is formed to be transparent or colored and transparent. For example, colored clear solid printing can be performed on a transparent thermoplastic resin film, and a transparent colored layer can be laminated to be colored transparent. In the case of transparent coloring, add a pigment or dye such as isoindolinone yellow, quinacridone red, phthalocyanine blue, or carbon black to the transparent thermoplastic resin as long as the transparency is not lost. It may be colored, and in this case, since it can be more shining, there is an advantage that a cosmetic material with excellent paint feeling can be obtained.
[0020]
The transparent thermoplastic resin layer 8 may be printed with a grain pattern on the front surface, back surface, or both front and back surfaces of the resin layer 8 as necessary (not particularly shown in FIG. 1). The wood grain pattern is the minimum necessary pattern that can be printed with highly transparent ink so as not to completely cover the appearance of the veneer on the surface of the wooden substrate, or just to compensate for the insufficient appearance of the veneer. Only.
[0021]
The wood grain pattern is an annual ring portion, a shining (glossy) portion, a wood surface portion, or a combination thereof. The ink used for the printing of the wood grain pattern uses a simple substance such as acrylic resin, vinyl chloride-vinyl acetate copolymer, chlorinated polypropylene, urethane resin, polyester resin, or a mixture of two or more of these as the binder resin. Colorants such as known pigments and dyes such as petals, yellow lead, ultramarine blue, carbon black, titanium white, isoindolinone yellow, quinacridone red, phthalocyanine blue, scaly foil powder such as titanium dioxide-coated mica, aluminum Use a material to which foil powder, brass foil powder or the like is added. Gravure printing, offset printing, silk screen printing, ink jet printing, and the like are used as a method for printing a wood grain pattern.
[0022]
The transparent gloss adjusting layer 9 is for adjusting the gloss of the surface, versatility of adhesion with various transparent thermoplastic resin layers, deformation followability when bending the decorative sheet into the conduit groove, and scratch resistance In view of the properties, a two-component curable urethane resin is selected as the resin component (binder resin), and a gloss adjusting agent (also referred to as a matting agent or a matting agent) is added to the desired gloss. It is obtained by coating a composition that has not been added. When making the surface highly glossy, no gloss adjusting agent is added. Moreover, when making it low glossiness, it adds. Examples of the gloss adjusting agent include inorganic substances such as silica, alumina (α-alumina, etc.), calcium carbonate, barium sulfate, kaolinite, aluminosilicate, and organic (resin) fine particles such as polycarbonate, nylon, and urethane resin. The average particle size of the gloss adjusting agent is preferably about 1 to 10 μm, and the amount added is appropriately selected according to the desired gloss, but is usually about 30% by mass at maximum. As the two-component curable urethane resin, those exemplified in the transparent easy adhesion primer layer can be used.
[0023]
One or more of a gloss adjusting layer, a thermoplastic resin layer, an easy-adhesion primer layer, an adhesive layer, etc. (preferably a layer on the surface side is preferred) to impart light resistance (weather) resistance to the decorative sheet or decorative plate In addition, it is preferable to add a known ultraviolet absorber, light stabilizer, or both. UV absorbers include benzotriazoles such as 2- (2'-hydroxy-3 ', 5'-bis (α, α-dimethylbenzyl) phenyl) benzotriazole, 2,2'-dihydroxy-4-methoxybenzophenone Organic materials such as benzophenone-based and salicylate-based materials such as cerium oxide and zinc oxide having fine particles (particle size of about 0.2 μm or less) are used. The amount added is about 0.1-1 wt%. Examples of the light stabilizer include hindered amine radical scavengers such as bis (2,2,6,6-tetramethyl-4piperidinyl) sebacate and piperidinyl radical scavengers. The amount added is about 0.1 to 1 wt%.
[0024]
The decorative material of the present invention includes building interior materials such as walls, floors and ceilings, window frames, door frames, handrails, construction materials such as peripheral edges, doors and other fittings, furniture such as fences and shelves, vehicle interior materials, and home appliances. Can be used for various purposes such as product cabinets.
[0025]
FIG. 2 is an explanatory view showing an example of a manufacturing method of the decorative material of FIG. Hereinafter, an example of a method for manufacturing a decorative material will be described. 2 (a) and 2 (b), the hydraulic press machine is configured such that the pressure plates 21, 31 are attached to the rams 22, 32 so as to be movable up and down with respect to the cylinders 23, 33. It is comprised so that pressurization is possible. First, as shown in FIG. 2 (a), the laminate 12 formed by applying an adhesive to the transparent easy-adhesive primer layer surface of the decorative sheet and laminating it on the wooden substrate is placed at a predetermined position of the hydraulic press machine. . In this state (a state where the adhesive is not dried or solidified or hardened), the decorative sheet 10 is simply placed on the surface of the wooden substrate 5, so that the cavity 13 has no gap between the decorative sheet in the recess on the surface of the veneer. It is in a state. The outer surface of the decorative sheet (the upper surface of the transparent gloss adjusting resin layer 9) is also formed flat.
[0026]
Next, as shown in FIG. 2 (b), the pressure plates 21, 31 are moved up and down by advancing the rams 22 and 23 of the hydraulic press so that pressure is applied in the vertical direction of the laminate 12, and the pressure is maintained for a certain time. The laminated body 12 is pressed until the adhesive is cured, dried or solidified. This press is performed either by a method in which the pressure platen surface temperature is at room temperature (referred to as room temperature press curing) or by a method in which the plate surface temperature is heated to a temperature higher than room temperature (referred to as hot press curing). May be. After pressing for a predetermined time, the pressure plate of the hydraulic press is opened and the decorative material is taken out.
[0027]
In room temperature press curing, the adhesive is dried (or semi-cured) and left in a press machine with pressure applied to cure and bond. This curing time is usually about 30 to 60 minutes. Specific conditions are room temperature 10-30 ° C, pressure 2-50kgf / cm ² Degree.
[0028]
In the hot press curing, after drying or curing (curing) the adhesive, hot pressing is applied to cause the sheet to follow the conduit. Curing can be formed so that the decorative sheet bends along the inner surface shape of the conduit groove by heating alone without applying pressure. Is preferred. The conditions in this case are as follows: temperature 40 ° C-100 ° C, pressure 2-50 kg / cm ² The pressurization time is about 60 to 90 minutes.
[0029]
(I) Room temperature press curing only, (ii) Hot press curing after curing at room temperature without pressure, (iii) Method of performing hot press curing by heating the pressure plate after room temperature press curing In any method, it is possible to obtain a decorative material in which each layer of the decorative sheet is bent along the inner surface shape of the conduit groove. After performing the room temperature press curing of (iii) above, the method of performing the hot press curing is such that when a material having a smooth surface such as MDF is used as the wooden substrate, a cosmetic material having a smoother flat surface is obtained. can get.
[0030]
In the production of the decorative material described above, the effect of performing pressing will be described with reference to FIGS. As shown in FIG. 3 (a), when the decorative sheet 10 coated with the adhesive 6a on the back surface is placed on the surface of the protruding board 3 of the wooden board, the adhesive 6a does not sufficiently flow into the conduit groove 4. Air bubbles remained, and the decorative sheet 10 should float inside the conduit groove 4. In this state, the adhesive 6a is uncured and the solvent or dispersion medium remains. Then, when the pressing is performed with the adhesive 6a uncured, the adhesive 6a is pushed into the conduit groove 4 of the protruding plate 3 by the press pressure by the pressure plate 21, as shown in FIG. The bubbles are also degassed. However, the surface (outer surface) of the decorative sheet 10 is a flat ridge, including just above the conduit groove 4.
[0031]
When this is cured at room temperature, as shown in FIG. 3 (c), the adhesive 6a is cured at room temperature (including cases such as curing by dry solidification, crosslinking reaction, polymerization reaction, etc.). Causes volume shrinkage as it cures. Accordingly, the decorative sheet 10 is also drawn into the conduit groove 4, and a concave portion 11 corresponding to the conduit groove 4 of the protruding plate 3 on the surface of the wooden substrate is generated on the surface of the decorative sheet 10. Further, other than the conduit groove 4 (convex portion) is prevented from being pulled into the conduit groove 4 by the pressure plate 21. In FIG. 3 (C) and (D), the displacement vector indicating the movement of each layer is indicated by an arrow. Incidentally, the shape of the recessed portion 11 obtained in this way inevitably approximates the shape and appearance of the natural wood conduit groove 4 on the surface of the wood substrate. Further, the color and the pattern of the recessed portion 11 and the conduit groove 4 existing immediately below are necessarily aligned with each other.
[0032]
In addition, when heat press curing is performed from the state shown in FIG. 3 (a) or the state shown in FIG. 3 (c), the curing shrinkage of the adhesive is further accelerated by heating as shown in FIG. 3 (d). Is done. In addition to the hardening of the adhesive 6a, a transparent thermoplastic resin layer that is free to deform just above the conduit groove 4 8 Is shrunk due to the release of residual stress, the thickness is reduced, and the depth of the recessed portion 11 is more emphasized.
[0033]
【Example】
Example 1
(1) Corona discharge treatment was applied to both the front and back surfaces of a transparent biaxially oriented polypropylene transparent film having a thickness of 30 μm.
(2) An easy-adhesive primer coating agent composed of a two-component curable resin composed of 100 parts by weight of acrylic polyol and 8 parts by weight of 1,6-hexamethylene diisocyanate was applied to the back surface of the transparent film of (1) above ( Coating amount: 2g / m ² Gloss control coat consisting of 100 parts by weight of acrylic polyol, 8 parts by weight of 1,6-hexamethylene diisocyanate, and 10 parts by weight of silica powder with an average particle size of 2 μm on the surface of the film. Coating agent (coating amount: 7g / m ² A gloss adjusting layer was provided during drying.
(3) 50g / m of two-component curable vinyl acetate resin adhesive (Chuo Rika: BA-10) on the surface of the above easy-adhesive primer layer ² (wet) Coating was performed to form a transparent adhesive layer.
(4) The film on which the above transparent adhesive layer was formed was laminated on the surface of the veneer of a substrate formed by laminating a 0.35 mm thick oak veneer on a 10 mm thick MDF (medium density fiberboard).
(5) Using a hydraulic press machine, the surface pressure of the pressure plate 30 kg / cm ² After pressing with a cold press (room temperature 23 ° C.) for 30 minutes, the decorative board was taken out.
[0034]
In the manufacturing process of the decorative board of Example 1, in the state of only the lamination of (4), the sheet did not follow the conduit of the protruding plate, and the sheet of the conduit portion was floating. In addition, the design surface was cloudy white (because of minute air). On the other hand, in the state of processing up to (5), the sheet is adhered along the protruding plate conduit, and because it is adhered at a high pressure (no minute air), it is transparent on the design surface. There was a feeling, and the shining inherent to the veneer was emphasized, and the paint feeling was excellent.
[0035]
Example 2
(1) A transparent film obtained by subjecting both sides of a transparent polyethylene terephthalate (PET) film having a thickness of 25 μm to biaxial stretching to corona discharge treatment.
(2) On the back surface of the transparent film of the above (1), an easy-adhesive primer coating agent comprising a two-part curable resin composed of 100 parts by weight of acrylic polyol and 8 parts by weight of 1,6-hexamethylene diisocyanate was applied ( Coating amount: 2g / m ² Gloss control coat consisting of 100 parts by weight of acrylic polyol, 8 parts by weight of 1,6-hexamethylene diisocyanate, and 10 parts by weight of silica powder having an average particle size of 2 μm on the surface of the film. Coating agent (coating amount: 7g / m ² A gloss adjusting layer was provided during drying.
(3) 50g / m of two-component curable vinyl acetate resin adhesive (Chuo Rika: BA-10) on the surface of the above easy-adhesive primer layer ² (wet) Coating was performed to form a transparent adhesive layer.
(4) The film on which the transparent adhesive layer was formed was laminated on the surface of the veneer of a substrate formed by laminating an oak veneer having a thickness of 0.35 mm on an MDF (medium density fiberboard) having a thickness of 10 mm.
(5) It was allowed to stand for 30 minutes at room temperature 23 ° C. without pressing.
(6) The surface pressure of the press panel is 30kg / cm. ² After applying pressure at a surface temperature of 60 ° C. for 60 minutes, the decorative board was taken out.
[0036]
Example 3
(1) 30 μm thick ethylene-propylene copolymer (ethylene 3% wt copolymer, benzotriazole UV absorber 0.8% wt, hindered amine radical scavenger 0.4% wt added) Corona discharge treatment on both sides of the film Gravure printing was performed on the back side of the wood pattern consisting of the autumn material part of the annual rings of the plate (printing ink was valved on a two-part curable urethane resin binder consisting of 100 parts by weight of acrylic polyol and 8 parts by weight of 1,6 hexamethylene diisocyanate. A pattern and a pigment mainly containing carbon black were added).
(2) An easy-adhesive primer coating agent composed of a two-component curable resin composed of 100 parts by weight of acrylic polyol and 8 parts by weight of 1,6-hexamethylene diisocyanate was applied to the back surface of the transparent film of (1) above ( Coating amount: 2g / m ² Gloss control coat consisting of 100 parts by weight of acrylic polyol, 8 parts by weight of 1,6-hexamethylene diisocyanate, and 10 parts by weight of silica powder with an average particle size of 2 μm on the surface of the film. Coating agent (coating amount: 7g / m ² A gloss adjusting layer was provided during drying.
(3) 50g / m of two-component curable vinyl acetate resin adhesive (Chuo Rika: BA-10) on the surface of the above easy-adhesive primer layer ² (wet) Coating was performed to form a transparent adhesive layer.
(4) The above transparent adhesive is applied to the surface of the veneer of the substrate, which is made by laminating 0.35mm thick oak veneer on 10mm thick MDF (medium density fiberboard). The layered film was laminated.
(5) It was allowed to stand for 30 minutes at room temperature 23 ° C. without pressing.
(6) The surface pressure of the press panel is 30kg / cm. ² After applying pressure at a surface temperature of 60 ° C. for 60 minutes, the decorative board was taken out.
[0037]
【The invention's effect】
As described above, the decorative material having a feeling of painting of the present invention, in order, with a polyol on the surface side of a wooden substrate having a conduit groove on the surface, through a transparent adhesive layer having a volume shrinkage when solidified or cured. A transparent easy-adhesive primer layer composed of a two-component curable urethane resin formed by crosslinking isocyanate, a transparent thermoplastic resin layer, and a transparent gloss adjustment layer composed of a two-component curable urethane resin formed by crosslinking polyol and isocyanate. A decorative plate in which a decorative sheet is laminated, wherein a transparent adhesive layer, a transparent easy-adhesion primer layer, a transparent thermoplastic resin layer, and a transparent gloss adjusting layer are all on the inner surface of the conduit groove. By adopting a configuration that is bent along the shape and the transparent gloss adjustment layer surface is a concave portion corresponding to the conduit groove, a decorative sheet is laminated without performing actual coating. In form the decorative material, and has a painting feel, appearance of vessel grooves irregularities were also included wood substrate are satisfactorily reproduced, the decorative material is obtained with a design to better coating appearance.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example of a decorative material having a coating feeling according to the present invention.
2 is an explanatory view showing an example of a method for producing the decorative material of FIG.
FIG. 3 is a diagram for explaining an operation in the manufacturing method of the decorative material.
[Explanation of symbols]
1 Cosmetics with a feeling of painting
2 Wood substrate
3 Veneer
4 conduit groove
5 Wood substrate
6 Transparent adhesive layer
7 Transparent easy adhesion primer layer
8 Transparent thermoplastic resin layer
9 Transparent gloss adjustment layer
10 Decorative sheet
11 Recess

Claims (3)

Transparent made of a two-component curable urethane resin, which is obtained by cross-linking polyol and isocyanate sequentially through a transparent adhesive layer having volume shrinkage when solidified or cured on the surface side of a wooden substrate having a conduit groove on the surface A decorative board in which a decorative sheet formed by laminating an easy adhesion primer layer, a transparent thermoplastic resin layer, a transparent gloss adjusting layer made of a two-component curable urethane resin formed by crosslinking polyol and isocyanate,
On the surface in the conduit groove, a solidified or hardened transparent adhesive layer, a transparent easy adhesion primer layer, a transparent thermoplastic resin layer, and a transparent gloss adjusting layer are all bent along the surface shape in the conduit groove. And the surface of the transparent gloss adjusting layer is a recess corresponding to the conduit groove,
Decorative sheet is configured to be smaller than the thickness of the transparent thermoplastic resin layer laminated portion on the other directly above the thick vessel grooves of the transparent thermoplastic resin layer laminated portion directly above the vessel grooves This is a decorative material with a feeling of painting.   The decorative material having a paint feeling according to claim 1, wherein at least the surface of the wooden substrate is colored in advance to give a depth.   The decorative material with a coating feeling according to claim 1 or 2, wherein the wooden substrate is a laminate formed by laminating a veneer having a conduit groove on the surface of the wood fiber board.

Images