JPH09207284A - Sheet for construction material and its preparation and construction material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a manufacturing process of a sheet for construction with always a stabilized color developing without being influenced by the color of a base material by forming a coloring layer and an opacifying layer in this order on the back surface of a transparent base sheet. SOLUTION: This sheet for construction material is obtd. by forming a coloring layer 2 and an opacifying layer 3 in this order on the back surface of a transparent base sheet 1. The coloring layer 2 is formed on the base sheet 1. The coloring layer 2 is provided for expressing a picture pattern such as woodgrain. The opacifying layer 3 is formed on the coloring layer 2. The opacifying layer 3 can be constituted of a layer consisting of a metal powder- contg. ink, a layer consisting of a metal thin film and a layer consisting of an ink. As the metal powder-contg. ink layer, a resin and a solvent are added to a metal powder such as aluminum, zinc, nickel and brass and if necessary, a dispersant consisting of a surfactant may be added. As a method for forming the opacifying layer 3, a gravure printing method and a spray coating method are used.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a surface material for furniture,
The present invention relates to a building material sheet used as a surface material for building materials, a method for manufacturing the same, and a building material.

[0002]

2. Description of the Related Art As a conventional method for manufacturing a building material sheet, a doubling method in which a design is provided on the surface of a colored vinyl chloride sheet by a printing method, and a transparent sheet is thermocompression-bonded on the design layer There was a method called.
In addition, in order to enhance the texture of the building material sheet, a wood grain conduit or an emboss for adjusting the surface gloss is sometimes processed into a transparent sheet during the doubling process. Further, there has been a method called a wiping method in which a coloring material for expressing a wood grain conduit portion or the like is placed in an embossed recess.

[0003]

However, the doubling method involves the steps of producing a toned colored vinyl chloride sheet, printing a design on the colored vinyl chloride sheet, and transparent vinyl chloride on the printed colored vinyl chloride sheet. Since the process of thermocompression-bonding the sheet is performed, the number of processes is large and therefore the cost is high.

In the doubling method, the hiding power was not sufficient when the toned colored vinyl chloride sheet was light in color.

Therefore, according to the present invention, the above-mentioned drawbacks can be solved, the manufacturing process can be simplified, and the sheet for building materials having a stable color development without being influenced by the color of the base material, a method for manufacturing the same, and a method for manufacturing the same. The purpose is to provide building materials.

[0006]

In order to achieve the above-mentioned object, the building material sheet and the manufacturing method thereof according to the present invention are constructed as follows.

That is, the building material sheet of the present invention is structured such that the colored layer and the masking layer are sequentially formed on the back surface of the transparent base sheet.

Further, a colored layer, a masking layer, and a protective layer are sequentially formed on the back surface of the transparent base sheet.

In the above invention, the concealing layer may be an ink layer containing metal powder.

In the above invention, the metal powder may be aluminum powder.

In the above invention, the base sheet may be made of vinyl chloride.

In the above invention, the base sheet may be made of an olefin resin.

In the above invention, the base sheet may be embossed on the surface thereof.

Further, the method for manufacturing a building material sheet according to the present invention is configured such that the colored layer and the metal powder-containing ink layer are continuously formed on the back surface of the transparent base sheet by the gravure printing method.

The building material of the present invention is configured such that the building material sheet according to any one of claims 1 to 7 is adhered to a base material.

[0016]

Embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of a building material sheet according to the present invention. FIG. 2 is a sectional view showing another embodiment of the building material sheet of the present invention. In the figure, 1 is a base sheet, 2 is a colored layer, 3 is a concealing layer, and 4 is a protective layer.

The building material sheet comprises a transparent base sheet 1 and a colored layer 2 and a hiding layer 3 formed on the back surface of the transparent base sheet 1 (see FIG. 1).

As the base sheet 1, a transparent one is used. As the material, vinyl chloride, olefin film, polyester, polyimide, polyamide, polycarbonate, polyvinyl chloride, polypropylene, polystyrene, acryl, acrylic rubber, etc. which are usually used as a sheet for building materials may be used. The thickness of the base sheet 1 is preferably 16 to 500 μm. Especially 100-200
The thickness of μm is suitable for post-processing such as bonding to a base material.

The colored layer 2 is formed on the base sheet 1. The coloring layer 2 is provided to express a design such as wood grain. In addition, it also has the function of the background color that the vinyl chloride sheet colored by the conventional doubling method has. Therefore, the layer is not limited to one color and may be a multicolor layer. As the coloring layer 2, a coloring ink composed of an ordinary pigment or dye and a binder or an additive is used. Specifically, coloring materials such as pigments, dyes and pearl pigments, and acrylic resins, vinyl acetate resins, vinyl chloride resins, butyral resins, vinyl chloride vinyl acetate polymers, polyurethane resins, fumaron resins, polyester resins, ethyl cellulose, nitrification It is preferable to use a coloring ink composed of a single resin or a plurality of synthetic resins such as cotton, cellulose acetate, and polyamide resin. Further, coloring inks include calcium carbonate, silica, barium sulfate, alumina, clay,
One or more extender pigments among shirasu balloon, talc, asbestine, magnesium carbonate, kaolin, and resin particles may be added. As the solvent, toluene, benzene, hydrocarbon solvent such as xylene, methanol, ethanol, iso-propyl alcohol, alcohol solvent such as n-butyl alcohol, acetone, methyl ethyl ketone, ketone solvent such as methyl isobutyl ketone, Alternatively, an ester solvent such as ethyl acetate, butyl acetate, or cellosolve acetate may be used. Colored layer 2
Examples of the forming method include a gravure printing method, an offset printing method, a printing method such as a screen printing method, a spray coating method, a flow coating method, a knife coating method, a gravure coating method, a roll coating method, and a coating method such as a comma coating method. .

The hiding layer 3 is formed on the colored layer 2. The concealment layer 3 can be composed of a layer made of ink containing metal powder, a layer made of a metal thin film, a layer made of ink, and the like. The metal powder-containing ink layer is made by adding a resin and a solvent to metal powder such as aluminum, zinc, nickel and brass, and a dispersant composed of a surfactant may be added if necessary. As the metal powder, aluminum is easy to handle, but is not particularly limited. In the case of aluminum, the concealing layer 3 is formed by using an ink in which aluminum powder or aluminum paste is dispersed and mixed in an appropriate resin and solvent. As a method for forming the concealing layer 3, a printing method such as a gravure printing method, an offset printing, a screen printing method, a spray coating method, a flow coating method, a knife coating method, a gravure coating method, a roll coating method, a comma coating method or the like is used. There is a law.

Conventionally, in the case of design expression with high lightness, 80
Even with a doubling method based on a μm colored vinyl chloride sheet, it is difficult to completely hide the substrate color,
For example, when the base material is plywood, it may be affected by variations in the color of the plywood. That is, in the doubling method, a polyvinyl chloride resin is usually mixed with various additives and a colorant to form a sheet having a thickness of 70 to 100 μm, which is used as a colored base sheet. As the colorant, the following ones are used, but it is necessary to use a large amount of inorganic pigment in order to obtain a sufficient hiding power. In particular, when it is desired to obtain a yellowish color, it is necessary to use a heavy metal-based pigment among the inorganic pigments. However, inorganic pigments are generally more expensive than organic pigments.

Hue Inorganic pigment Organic pigment −−−−−−−−−−−−−−−−−−−−−−−− Yellow Lead Disazo Yellow Orange Chromium Vermilion Dinitroaniline Orange Red Azo Lake Brown Bento Benzimidazo Ron Black carbon black White titanium oxide

In the market, it is the actual situation that the minimum necessary amount of heavy metal pigment is blended to the extent that there is no problem in normal use. Thus, for example, if the substrate is plywood,
When there is a black knot in a part, the building material sheet by the doubling method cannot cover the part completely, and there is a problem that the color of the design of the building material sheet looks changed. In the present invention, the concealing layer 3 is used to conceal the color of the base material, not the base sheet 1, so that when the type of the base material changes and the base material color changes, or when the color of the base material surface partially changes. Even if they are different from each other, the design expressed by the colored layer 2 of the building material sheet is not affected, and the desired stable design expression can always be obtained. Further, according to the present application, unlike the doubling method, even if the colorant is an organic pigment, the hiding property is not impaired, so that the cost can be reduced.

To form the colored layer 2 and the hiding layer 3,
It is preferable to use a printing method. According to the printing method, each layer can be continuously formed by one printing machine. Continuous means that the base sheet 1 is unwound, the above layers are laminated in one step, dried and wound.

A protective layer 4 may be provided to protect the colored layer 2 and the hiding layer 3 (see FIG. 2). Protective layer 4
Is formed on the colored layer 2 by a printing method. For the protective layer 4, polyethylene wax or the like may be used. Also,
The protective layer 4 may also serve as the polyethylene wax, the resin, the solvent, and if necessary, the colored layer 2 or the metal powder-containing ink layer. By providing the protective layer 4, the coloring layer 2 and the concealing layer 3 are not peeled off to damage the design before the building material sheet is bonded to the base material. The protective layer 4 may be formed by a printing method such as a gravure printing method, an offset printing method, a screen printing method, a spray coating method, a flow coating method, a knife coating method, a gravure coating method, a roll coating method or a comma coating method. There is a law.

The building material sheet obtained by the present invention may have other configurations depending on the type of decorative pattern. For example, embossing may be performed after printing, or wiping may be performed in which the colored ink is printed in the recess formed by embossing.

In this way, a building material sheet can be obtained. The building material sheet is used by being attached to the base material. Examples of the base material include plywood, wood-based materials such as MDF, synthetic resin-based materials such as injection-molded products and extrusion-molded products, and metal-based materials such as iron, stainless steel, and aluminum.

The building material sheet may be applied to the base material by applying an adhesive agent to the base material or by applying the adhesive agent to the building material sheet. Generally, when the substrate is flat, the adhesive is applied to the substrate, and when the substrate is not planar, the adhesive is applied to the building material sheet in many cases.
A laminator, a multi-stage press, a lapping machine, a vacuum press, or the like can be used to bond the building material sheet to the base material.

Also, when the building material sheet is attached,
When heat pressure can be applied, an adhesive layer may be further provided on the building material sheet. As the adhesive layer, a heat-sensitive or pressure-sensitive resin suitable for the material of the base material is appropriately used. For example, when the base material is acrylic resin, acrylic resin may be used. When the material of the base material is polyphenylene oxide / polystyrene resin, polycarbonate resin, styrene copolymer resin, or polystyrene blend resin, acrylic resin, polystyrene resin, polyamide resin having affinity with these resins. A resin or the like may be used. Further, when the material of the base material is polypropylene resin, chlorinated polyolefin resin, chlorinated ethylene-vinyl acetate copolymer resin, cyclized rubber and coumarone indene resin can be used. If the base material is wood or ceramic, chlorinated polyolefin resin,
A chlorinated ethylene-vinyl acetate copolymer resin, a polyamide resin or the like may be used. As a method of forming the adhesive layer, a printing method such as a gravure printing method, an offset printing, a screen printing method, a spray coating method, a flow coating method,
Knife coating method, gravure coating method, roll coating method,
There are coating methods such as the comma coating method.

[0031]

【Example】

Example 1 A 140 μm-thick vinyl chloride sheet containing a plasticizer, an ultraviolet absorber, a heat stabilizer, and an antioxidant was used to produce a three-color wood coloring layer and a one-color pearl pigment coloring layer using a gravure 10-color printing machine.
A four-color background color layer was printed with a vinyl-based ink.

Further, 20% of aluminum paste having an average particle diameter of 10 μm is continuously added to a transparent ink of vinyl binder.
The formulated hiding layer was printed.

Further, a protective layer containing 2% by weight of polyethylene wax was continuously printed on a woody brown ink to obtain a building material sheet having a wood grain pattern.

Further, by hot pressing with an embossing roll, wood-like unevenness was formed on the surface of the building material sheet, resulting in a building material sheet excellent in expression including touch.

Example 2 A 150 μm-thick polypropylene sheet containing an ultraviolet absorber and a heat-resistant stabilizer was used in a gravure 10-color printing machine to produce a 3-color wood coloring layer, a 1-color pearl pigment coloring layer, and a 4-color background color. The colored layer was printed with a chlorinated olefin resin ink.

Further, a concealing layer containing 20% of an aluminum paste having an average particle size of 10 μm mixed in a transparent ink of a chlorinated olefin resin binder was continuously printed.

Further, a protective layer containing 2% by weight of polyethylene wax was continuously printed on the woody brown ink to obtain a building material sheet having a wood grain pattern.

Further, by heat-pressing with an embossing roll, wood-like unevenness was formed on the surface of the building material sheet, resulting in a building material sheet excellent in expression including touch.

[0039]

Since the present invention has the above-described structure, it has the following effects.

The building material sheet of the present invention is constructed such that a colored layer and a masking layer are sequentially formed on a base sheet. Therefore, since the hiding layer is formed, it is possible to always present a stable colored pattern without being influenced by the substrate color.

The method for manufacturing a building material sheet according to the present invention is constructed such that a colored layer and a masking layer are successively formed on a base sheet by a sequential printing method. Therefore, when each layer is formed on the base sheet, it is continuously performed by the printing method, so that the work efficiency is high. Further, since only the printing process is performed without including another process, the printing loss is less likely to occur. Further, since the building material sheet is obtained by being continuously printed only in the printing process, the product is completed in a short time, the evaluation can be performed immediately, and the quality control is easy. Further, since the building material sheet is not transferred, the base sheet is less likely to expand and contract, and the layers can be easily registered. Thus, a building material sheet that is not affected by the color of the base material can be easily manufactured at low cost.

The building material of the present invention is configured so that the building material sheet according to any one of claims 1 to 7 is adhered to a base material. Therefore, since it has the concealing layer, it is possible to always present a stable colored pattern without being influenced by the substrate color.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a building material sheet of the present invention.

FIG. 2 is a cross-sectional view showing another embodiment of the building material sheet of the present invention.

[Explanation of symbols]

 1 Base Sheet 2 Colored Layer 3 Concealing Layer 4 Protective Layer

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location E04F 13/18 8913-2E E04F 13/18 A

Claims (9)

[Claims] 1. A building material sheet, wherein a colored layer and a masking layer are sequentially formed on the back surface of a transparent base sheet. 2. A building material sheet comprising a transparent base sheet, and a colored layer, a masking layer, and a protective layer, which are sequentially formed on the back surface of the transparent substrate sheet. 3. The building material sheet according to claim 1, wherein the hiding layer is a metal powder-containing ink layer. 4. The metal powder is aluminum powder.
The building material sheet described in. 5. The substrate sheet is vinyl chloride.
The sheet for building materials according to any one of to 4. 6. The building material sheet according to claim 1, wherein the base sheet is an olefin resin. 7. The building material sheet according to claim 1, wherein an emboss is formed on the surface of the base sheet. 8. A method for manufacturing a building material sheet, which comprises continuously forming a colored layer and a metal powder-containing ink layer on the back surface of a transparent base sheet by a gravure printing method. 9. A building material comprising the building material sheet according to claim 1 adhered to a base material.