JPH0420046Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a decorative board that has a painted appearance.

[Conventional technology]

2. Description of the Related Art Conventionally, decorative laminates have been widely used mainly for housing components, door materials, furniture, etc. to enhance decorativeness.
This decorative board mainly consists of a decorative sheet with a printed pattern etc. adhered onto a base material, and examples of this type of decorative board include thermosetting resin decorative board, polyester decorative board, and PVC decorative board. , printed plywood, etc. are known.

[Problem that the invention attempts to solve]

However, the above decorative board has the following problems.

1) Thermosetting resin decorative boards such as melamine decorative boards and DAP decorative boards often have a pattern such as a wood grain pattern formed by heating and pressure molding, etc., and a pattern such as a conduit part, etc., which is not in sync with the pattern on the surface resin layer. 2) Although the polyester decorative board has a thick surface resin layer and has a textured feel, it is difficult to include designs such as conduit parts and match them with designs such as wood grain patterns.
3) In the PVC decorative board, the part corresponding to the pattern such as the conduit part is formed as a concave part by embossing, but the design of the conduit part is not printed, and the concave part and the design such as the wood grain pattern are out of sync with each other. , 4)
Printer plywood coated with urethane paint, amino alkyd paint, etc. can be used to cross-synchronize patterns such as wood grain patterns and patterns of conduits etc. by printing methods, but a surface resin layer is applied to improve the texture. If it is made thicker, there are problems such as making it impossible to synchronize.

That is, in conventional decorative boards, the woodgrain pattern and the pattern of the conduit portions, etc. are in sync with each other, and at the same time, there is no one that has a feeling of fleshiness, and therefore, the painted feel is poor and lacks a high-class feel.

The present invention has been developed in view of the above-mentioned problems, and aims to provide a decorative board in which a pattern such as a wood grain pattern and a pattern such as a conduit portion are in sync with each other, and which has a decorative feel that also has a fleshy feel. purpose.

[Means for solving problems]

That is, the decorative board with a painted appearance of the present invention includes a laminate in which a transparent thermoplastic sheet is laminated on a colored thermoplastic sheet having a printed pattern layer on the surface, a recess formed in the laminate by embossing, and the recess. A decorative sheet consisting of a coloring agent layer formed on the base material is laminated on a base material, and after forming a transparent resin layer on the surface of the decorative sheet and polishing it, a transparent resin layer is further formed. The gist is a decorative board with a painted feel that is characterized by:

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 shows an embodiment of the decorative board of the present invention having a painted appearance, and the decorative board 1 of the present invention consists of a colored thermoplastic sheet 3 having a printed pattern layer 2 on the surface as shown in FIG. A decorative sheet 8 consisting of a laminate 5 in which a transparent thermoplastic sheet 4 is laminated, a recess 6 formed in the laminate 5 by embossing, and a coloring agent layer 7 formed in the recess 6 is placed on a base material 9. After forming a transparent resin layer 10 on the surface of the decorative sheet 8 and polishing it, a transparent resin layer 11 is further formed.

The colored thermoplastic sheet 3 used to form the decorative sheet 8 in the present invention includes cellophane, acetate, polyethylene, polypropylene, polyester, polyvinyl chloride, polyvinylidene chloride,
Sheet made of thermoplastic resin such as polystyrene, polycarbonate, polyvinyl alcohol, polyamide; tributyl phosphate, triphenyl phosphate, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, octyl phthalate, butyl adipate, n-hexyl adipate , adipic acid n-
Examples include sheets made of polyvinyl chloride having plasticity such as octyl, dibutyl sebacate, and chlorinated diphenyl.

The printed pattern layer 2 provided on the surface of the colored thermoplastic sheet 3 is usually printed with a pattern such as a wood grain pattern using a printing plate called a blur printing plate. It is provided in the same or similar pattern and color tone, and in the case of a stone grain pattern, it is provided in a pattern and color tone that is the same or similar to the ground color of the stone. Known inks can be used for printing; for example, colorants such as dyes or pigments, and extender pigments are added to the vehicle, and if necessary, plasticizers, stabilizers, wax, grease, desiccants, etc.
It is possible to use an ink composition prepared by adding optional additives such as an auxiliary drying agent, a curing agent, a thickener, a dispersant, and a filler, and thoroughly kneading the mixture with a solvent, a diluent, and the like. The above vehicle is known, such as various oils and fats such as linseed oil, soybean oil, and synthetic drying oil; natural and processed resins such as rosin, copal dammar, hardened rosin, rosin ester, and polymerized rosin; rosin-modified phenols; Resin, 100% phenolic resin, maleic acid resin, alkyd resin, petroleum resin, vinyl resin, acrylic resin,
Synthetic resins such as polyamide resin, epoxy resin, amino alkyd resin; nitrocellulose,
Cellulose derivatives such as ethyl cellulose; chlorinated rubber,
Examples include cyclized rubber derivatives, and vehicles consisting of solid binders such as glue, casein, dextrin, and zein, and solvents. The printed pattern layer 2 is formed by printing using the above ink by a printing method such as gravure printing, flexographic printing, or silk printing.

The transparent thermoplastic sheet 4 has a printed pattern layer 2 on its surface.
The sheet 4 is laminated on the colored thermoplastic sheet 3 provided with the printed pattern layer 2, and a sheet similar to the formula colored thermoplastic sheet 3 can be used as the sheet 4, but the sheet 4 is laminated above the printed pattern layer 2. Therefore, it is necessary that the sheet be transparent so that the pattern layer 2 can be seen through.

The decorative sheet 8 in the present invention is a so-called wiping sheet, and is a laminate in which a transparent thermoplastic sheet 4 is laminated on a colored thermoplastic sheet 3 having a printed pattern layer 2 on the surface as shown in FIG. 5, a concave portion 6 having a concave pattern extending over the sheets 4 and 3 is formed by embossing, and a coloring agent layer 7 made of a coloring agent is formed in the concave portion 6 by wiping.

The recesses 6 can be formed by using an embossing plate, for example, by transferring the uneven state of the surface of wood by electroforming to form an embossed pattern of the conduit part, or by transferring the uneven state of the surface of wood, by photolithography. Using an embossing plate or the like in which an embossed pattern of a conduit portion is formed by a photoetching method using a previously prepared original plate, the laminate 5 is heated and press-molded to form a concave portion 6 having a concave pattern.

The coloring agent layer 7 is formed by filling the recesses 6 with a coloring agent, and paint or ink is used as the coloring agent, for example, natural resins such as shellac, dammar, rosin, rosin ester, etc., or modified resins thereof. ; Nitrocellulose, acetylcellulose,
Cellulose derivatives such as ethyl cellulose and benzyl cellulose; phenolic resins, urea resins, phthalic acid resins, maleic acid resins, melamine resins, polyvinyl acetate resins, polyvinyl chloride resins, acrylic resins, polyvinyl alcohol , polyvinyl butyral, epoxy resins, silicone resins, polyester resins, polyamide resins, polyurethane resins, and other synthetic resins; other rubber derivatives such as chlorinated rubber, cyclized rubber, and synthetic rubber are used as constituent materials of the vehicle, Paints or inks prepared by adding a colorant, an extender pigment such as precipitated barium sulfate, a plasticizer, etc. to a vehicle can be used. Furthermore, among the above resins, phenolic resins,
Urea resin, melamine resin, epoxy resin,
When a thermosetting resin such as a polyester resin or a polyurethane resin is used, the abrasion resistance and solvent resistance of the part where the colorant layer 7 is formed improves, and the UV curing agent is added to the above paint or ink. In that case, by wiping or coating the thermoplastic sheet, the quality of the decorative sheet 8 can be stabilized and production efficiency can be improved.

The colorant layer 7 is formed by coating the concave portions 6 of the laminate 5 with the above paint or ink by roll coating or knife coating, and then scraping it off with a doctor blade or wiping paper to coat the convex portions of the laminate 5. The paint or ink that has been removed is removed, and the recesses 6 are filled with the paint or ink so that only the paint or ink remains. Here, the viscosity of the paint or ink composition, roll rotation speed, doctor angle, thickness, sheet speed, wiping paper speed, rubber roll hardness, etc. are adjusted so that the colorant remains only in the recesses 6. It is necessary. The color tone of the coloring agent layer 7 is preferably the same as or similar to the conduit portion in the case of a wood grain pattern, and the same or similar as the split in the case of a stone grain pattern, for example.

The decorative board 1 of the present invention is made by laminating the decorative sheet 8 having the above structure on a base material 9, and forming a transparent resin layer 10 on the surface of the laminated decorative sheet 8.
It can be obtained by polishing the surface of the resin layer 10 and further forming a transparent resin layer 11.

Examples of the base material 9 include ordinary decorative boards such as plywood, wood, particle board, fiberboard, gypsum board, paperboard, gypsum board paper, perlite board, silica board, asbestos slate board, GRC board, iron board, and aluminum board. There is no particular limitation, and any material used as a base material can be used.

As shown in FIG. 1, the decorative sheet 8 can be laminated, for example, by bonding to a base material 9 via an adhesive layer 12, and an adhesive for bonding the decorative sheet 8 and the base material 9 together. Examples include urea resin, ethylene vinyl acetate resin, vinyl acetate emulsion,
Examples include single or copolymer resins such as polyurethane resins, epoxy resins, and acrylic resins, and extenders such as cornstarch and calcium carbonate may be added to the resins. The adhesive layer 12 is formed by a roll coater method using the above resin.
The decorative sheet 8 and the base material 9 can be formed by applying by a reverse coater method, a spray method, etc., and the decorative sheet 8 and the base material 9 can be bonded together by cold press, high pressure press, continuous lamination, etc.

The transparent resin layer 10 is provided to protect the surface of the decorative sheet, especially to prevent organic solvent attack when a large amount of resin paint is applied to the decorative sheet.The material of the layer 10 is polyurethane resin, amino alkyd, etc. Examples include resins, acrylic resins, polyester resins, diacrylphthalate resins, melamine resins, epoxy resins, phenol resins, etc., and polyurethane resins are particularly preferred in terms of workability and ability to prevent organic solvent attack on the decorative sheet. The transparent resin layer 10 is formed using the above resin by natural coating, reverse roll coating, gravure coating, bar coating, spray coating, mesh roll coating, flow coating, knife coating, or screen coating. After coating using a coating method such as a bottom coat method or a bottom coat method, it is dried and solidified. The amount of resin applied is 1 to 3 g/ ^shaku2
(during dry) is preferred.

In the decorative board 1 of the present invention, the surface of the transparent resin layer 10 is polished in order to improve the adhesion of the transparent resin layer 11 provided over the top and the smoothness of the painted surface, and the polishing method includes a polishing method using a sander, a buff roll, etc. can be mentioned.

The surface condition of the decorative board obtained by polishing is what is called a thunderstop, and a transparent resin layer 11 is further formed on the transparent resin layer 10 whose surface has been polished. The resin layer 11 is formed using the same resin material used to form the transparent resin layer 10 by the same coating method, and polyurethane resin is preferable in terms of workability and the effect of imparting a coating feel. . The amount of resin material applied is preferably 3 to 10 g/ ^square .

Since the transparent resin layers 10 and 11 in the present invention are formed by coating in two parts, the amount of resin material applied at one time can be reduced compared to a structure in which only one transparent resin layer is formed. As a result, it dries quickly and can prevent penetration of solvents, and has the advantage of providing excellent application feel when repeatedly applied.

〔Example〕

Hereinafter, the present invention will be explained in more detail with reference to specific examples.

A vinyl chloride resin-based gravure ink was applied to an opaque polyvinyl chloride sheet that was colored with the lightest color (yellowish brown color) on the surface of the walnut wood (the color is the area other than the conduit part of the walnut wood mentioned above). ) is gravure printed with a slightly darker color (blackish brownish color) on the wood surface (line count: 150/inch, plate depth: approx. 25μ)
Printed using. Next, a transparent polyvinyl chloride sheet was laminated on the colored opaque polyvinyl chloride sheet to form a laminate.

Next, the above laminate was subjected to embossing using an embossing plate (temperature 150°C, linear pressure 1t, speed
10 m/min), and a concave pattern was created.

Next, the surface of the laminate including the recesses is coated with a wiping ink made of a two-component urethane resin in the same color (black color) as the conduit part of the painted walnut material using a roll coat, and the surface of the laminate including the recesses is coated with a doctor. Remove ink from the convex parts with a blade,
The ink remaining on the convex portions was almost completely removed using wiping paper so that the ink remained only on the concave portions to form a decorative sheet.

The above decorative sheet was laminated by laminating it on a 5 mm thick plywood board using an acrylic ethylene vinyl acetate co-condensation type adhesive.

Next, polyurethane resin was applied to the surface of the decorative sheet using a reverse coater, dried (40℃, 1 hour), and then the surface of the coated transparent resin layer was sanded (#400 abrasive paper). I did some polishing. Furthermore, polyurethane resin is applied to the polished layer surface using a roll coater and dried (70℃,
10 minutes) to obtain the decorative board of the present invention.

The above-mentioned decorative board had a pattern such as a wood grain pattern and a pattern such as a recessed conduit portion, etc. that accurately matched, and had a fleshy feel, giving it a luxurious feel.

[Effect of idea]

As explained above, the decorative board of the present invention has a pattern such as a conduit part formed in a concave part formed by embossing, so that it accurately matches the pattern such as a wood grain pattern formed on the printed pattern layer. In addition, after forming a transparent resin layer on the surface of the decorative sheet and polishing it, a transparent resin layer is further formed, giving it a solid feel. As a result, the decorative board of the present invention has a superior coating feel and a luxurious feel compared to conventional decorative sheets.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal cross-sectional view of a decorative board with a painted appearance of the present invention, and FIG. 2 is a longitudinal cross-sectional view of an example of a decorative sheet. DESCRIPTION OF SYMBOLS 1... Decorative board with painted appearance, 2... Printed pattern layer, 3... Colored thermoplastic sheet, 4... Transparent thermoplastic sheet, 5... Laminate, 6... Concave portion, 7...
Colorant layer, 8... Decorative sheet, 9... Base material, 10
...Transparent resin layer, 11...Transparent resin layer.

Claims (1)

[Scope of utility model registration request] A decorative sheet consisting of a laminate in which a transparent thermoplastic sheet is laminated on a colored thermoplastic sheet having a printed pattern layer on the surface, a recess formed in the laminate by embossing, and a colorant layer formed in the recess. is laminated on a base material, and after forming a transparent resin layer on the surface of the decorative sheet and polishing it,
A decorative board with a painted appearance characterized by further forming a transparent resin layer.