JPH08281897A - Production of decorative panel - Google Patents

Abstract

PURPOSE: To produce a decorative panel having extremely high design effect incapable of being expressed heretofore by providing paint using pearl pigment to a base coat layer, a transfer pattern layer or both of them when a design is applied by a transfer system. CONSTITUTION: A color base coat layer 22 is formed on the entire surface of a cementitious inorg. base material and a transfer sheet having a transfer pattern layer consisting of a pattern layer formed using printing ink having adhesive strength to the color base coat layer and a pearl ink resin layer 23 in which pearl pigment is dispersed formed to the entire surface thereof on the side brought into contact with the base coat layer 22 is placed on the base coat layer 22 and pressed by a hot roll to transfer the transfer pattern layer to the base coat layer and a clear topcoat layer 25 is further applied.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method for producing a decorative board for interiors and exteriors in which a transfer pattern layer is formed on the surface of a substrate, and in particular, a pearl pigment is dispersed in the transfer pattern layer, The present invention relates to a method for manufacturing a decorative plate having a high design property in which a pearly luster is expressed on the surface of the decorative plate.

[0002]

2. Description of the Related Art Conventionally, various decorative plates have been used for exterior or interior of houses or as furniture members. In recent years, along with the trend toward higher quality and higher design, users have come to like products having an embossed surface. In particular, a decorative board that imitates a brick or tile having a very high-grade appearance as an exterior material can be installed much easier and cheaper than the actual installation of the brick or tile.

However, since these decorative plates are manufactured mainly for the purpose of embossing decoration, they are currently behind in color design. That is, most of the products are coated with a single-color paint over the entire surface or with two colors using different colors for the joints. In addition, although products with high designability have recently been sold by the direct gravure printing method, the design effect obtained by these methods is limited, and compared with genuine bricks and tiles, user satisfaction is higher. It wasn't something I could get.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and its problems are as follows.
To provide a decorative board with extremely high designability that could not be expressed in the past, by providing a paint using a pearl pigment on the base coat layer, the transfer pattern layer, or both when applying a design by the transfer method. It is in.

[0005]

In order to solve the above-mentioned problems, the present invention forms a colored base coat layer on the entire surface of a cement-based inorganic base material, and on the side in contact with this base coat layer,
Place a transfer sheet on the entire surface of which a transfer pattern layer consisting of a base coat layer, a pattern layer of adhesive printing ink, and a pearl ink resin layer in which a pearl pigment is dispersed is placed, and pressed from above with a heat roll or the like. Then, the transfer pattern layer of the transfer sheet is transferred, and the clear top coat layer is further applied to the decorative plate.

The present invention will be described in detail below with reference to the drawings. FIG. 1 shows an example of the structure of the transfer sheet according to the present invention. A release layer (12) on the surface of the base sheet (11);
Printing ink pattern layer (13) and pearl ink resin layer (1
The transfer pattern layer (15) composed of 4) is sequentially laminated. When a paint in which a pearl pigment is dispersed is used as the base coat layer (22) on the substrate, the pearl ink resin layer of the transfer sheet does not have to be provided.

The base sheet (11) is appropriately determined depending on the surface of the base material (21) to be transferred. That is,
If the surface of the base material (21) has fine irregularities,
A thermoplastic resin film that can follow the fine irregularities due to heat during molding is used. Specifically, vinyl chloride, polyethylene, polypropylene, nylon,
Films such as polyester can be used. The type and thickness of the resin can be appropriately selected in consideration of the degree of surface irregularities and the transfer temperature, but at a molding temperature of 150 to 180 ° C., a vinyl chloride resin film having a thickness of 100 μm or less is most suitable.

If the surface of the base material (21) is smooth,
Besides the thermoplastic resin film, a synthetic resin film such as polyethylene terephthalate or acrylic, or polypropylene resin laminated paper can be used as the base sheet (11) of the transfer sheet.

As a method for forming the following layers on the base sheet (11), a gravure printing method, a screen printing method, an offset printing method and the like can be used.

As the material of the release layer (12), an appropriate material is selected according to the material of the base sheet (11). If it has a peeling function from the printing ink, such as a polyethylene terephthalate resin film, it is not necessary to provide it. When a film having good adhesion to printing ink, for example, a vinyl chloride resin film is used, polyvinyl butyral resin is suitable as the release layer (12).

The ink of the printing ink pattern layer (13) is appropriately determined depending on the site to be used. For example, when durability is required for exterior applications, an ink having weather resistance is used, for example, by using an inorganic pigment-based coloring material. The synthetic resin binder used in this printing ink is determined in consideration of elongation during heating, durability of the final product, and the like. For example, fluororesin, acrylic resin,
A mixture or copolymer of styrene resin, alkyd resin, polyamide, polyester, polyvinyl chloride, polyvinyl acetate, or a combination thereof can be used.

As the synthetic resin binder of the pearl ink resin layer (14), the same resin binder as the printing ink is desirable from the viewpoint of adhesiveness. As a pearl pigment,
It is appropriately determined depending on the site to be used. For the site where durability is required, in the case of titanium oxide-coated mica, which is the mainstream pearl pigment at present, rutile titanium oxide, or a surface-treated material having weather resistance is used.
The particle size and color to be used may be appropriately selected from the aspect of design,
Specifically, a particle size of 5 to 200 μm and a color of silver type, iris type, colored type or the like can be used. The concentration of the pearl pigment dispersed in the synthetic resin binder is preferably 5 to 30 parts with respect to 100 parts of the binder.

FIG. 2 shows a cross-sectional structure of the decorative board of the present invention. A base material (21) to be decorated, a colored base coat layer (2
2), a pearl ink coating layer (23), a transfer pattern layer (15) formed by a transfer sheet, and a top coat layer (25) are sequentially laminated.

The synthetic resin binder used for the base coat layer (22) is determined by the suitability for application to the decorative board, the close contact with the transfer pattern layer to be transferred, and the site where the decorative board is used. For example, for a fiber-reinforced cement board (base material) for exterior use, a two-component curable acrylic urethane resin is suitable. As a coating method, an existing method such as air spray or various coaters can be used.

Further, in the case of the base coat layer in which the pearl pigment is dispersed, the selection of the pearl pigment to be used is the same as in the pearl ink resin layer. The concentration of the pearl pigment to be dispersed is appropriately 1 to 30 parts with respect to 100 parts of the base coat resin. The coating method at this time may be a known method. Also,
There is no problem in forming a pearl ink paint layer (23) by further applying a pearl ink paint on the colored base coat layer in order to suppress the influence of the base color of the decorative plate.

FIG. 3 shows an example of the transfer method of the transfer sheet. It is placed so that the surface of the decorative board base material (21) having the base coat layer formed thereon and the transfer pattern layer (15) side of the transfer sheet (10) are in contact with each other, and a heat roll (33) is applied from the base sheet side. The transfer pattern layer (15) is formed by pressing. In this case, when the surface of the decorative plate base material (21) has fine irregularities, the surface of the heat roll is soft so as to follow the irregularities. That is, the surface rubber hardness is 30 degrees and the rubber wall thickness is 20 m, depending on the degree of unevenness of the decorative plate.
Silicone rubber of m or more is suitable.

The synthetic resin binder used for the top coat is appropriately determined in the same manner as described above. For example, when high durability such as for exterior use is required, fluororesin or acrylic silicone resin is used. Good to use. As a coating method, an existing method such as air spray and various coaters can be used.

[0018]

According to the method of manufacturing a decorative board of the present invention, the use of the pearl pigment in either the transfer pattern layer or the base coat layer of the transfer sheet, or both of them makes it possible to obtain a texture that cannot be expressed by a conventional transfer product. It is possible to obtain a decorative board having a high design property having a pearly luster.

[0019]

EXAMPLES Specific examples will be described below.

<Example 1> As shown in FIG. 1, a semi-cured vinyl chloride sheet having a thickness of 80 μm was used as a base sheet (11) of a transfer sheet, and a polyvinyl butyral resin was formed thereon by a gravure printing method. Release layer (12)
Then, a color ink (alamide yellow, phthalocyanine blue, dianthraquinonidryl red) and a printing ink pattern layer (granite pattern) (13) made of acrylic resin are sequentially laminated. Furthermore, for 100 parts of the same acrylic resin,
A pearl ink resin (14) in which 15 parts of a silver-type pearl pigment having a particle size of 10 to 50 μm is dispersed is printed on the entire surface by a gravure printing method to obtain a transfer sheet (10).
And

As the decorative board base material (21), a fiber reinforced cement board having fine irregularities on its surface is used.
As the base coat layer (22), a two-component curable white urethane paint using titanium oxide as a pigment was applied by air spraying to a thickness of 80 g / m ² and dried in an oven at 80 ° C. for 9 minutes.

Next, as shown in FIG. 3, the transfer sheet (1
0) is placed on the fiber reinforced cement plate of the base material with the transfer pattern layer (15) side facing down, and from the base sheet (11), a heat roll (33) having a surface temperature of 160 ° C. and a rubber hardness of 30 degrees. ) Press. The pressure is 10 kg / cm and the speed is 5 m.
/ Min.

After peeling off the base sheet of the transfer sheet, an acrylic silicone gloss clear top coat (25) is applied to the fiber reinforced cement plate provided with the transfer pattern layer by air spray. The coating amount was 100 g / m ² , dried in an oven at 120 ° C. for 15 minutes, and left at room temperature for one day. The obtained decorative board had a silk-like pearl luster and fine irregularities on the surface, and had a high design effect that could not exist in nature.

Example 2 Although not shown, a polyethylene terephthalate sheet having a thickness of 25 μm was used as the base sheet (11), and a coloring pigment (iron oxide loess, iron oxide tea, phthalocyanine blue) was gravure-printed thereon. ) And a printing ink pattern layer (granite pattern) made of acrylic resin were sequentially laminated to obtain a transfer sheet (10).

As the decorative board base material (21), a fiber-reinforced cement board in which tile-like joints are provided in the concave portions of the large-sized concave-convex portion and the tile portions of the convex portions are smooth is used, and a base coat layer (22) is applied to this. As a pigment, a two-component curable white urethane paint using titanium oxide as a pigment is applied by air spray to a thickness of 8
It was applied to 0 g / m ² and dried in an oven at 80 ° C. for 20 minutes.

Next, as shown in FIG. 2, a pearl ink paint obtained by adding 5 parts of a silver type pearl pigment having a particle size of 40 to 200 μm to 100 parts of the base coat resin was air sprayed to a thickness of 50 g / m 2. ² was applied to form a pearl ink coating layer (23) and dried in an oven at 80 ° C. for 3 minutes.

Next, the transfer pattern layer (1) of the transfer sheet (10)
5) is placed face down on a fiber reinforced cement plate, and the transfer pattern layer (15) is transferred from the base sheet by pressing with a hot roll having a surface temperature of 160 ° C. and a rubber hardness of 60 degrees. The pressure was 10 kg / cm and the speed was 5 m / min.

After peeling off the base sheet of the transfer sheet, the fiber-reinforced cement board provided with the transfer layer is coated with a fluorine-based gloss clear top coat by air spray to a thickness of 1
It was coated at 00 g / m ² and dried in an oven at 80 ° C. for 20 minutes, and then left at room temperature for another day. The resulting decorative plate should express a design effect that has a texture that is not normally possible, with a slightly metallic pearl luster in the concave part that is the joint part and a granite pattern with a metallic shine in the tile part that is the convex part. I was able to.

[0029]

Industrial Applicability The method for producing a decorative board of the present invention comprises forming a colored base coat layer on the entire surface of a base material, and on the side in contact with the base coat layer, a base coat layer, a picture layer made of printing ink having adhesive force, and a pearl pigment. The transfer pattern layer consisting of the dispersed pearl ink resin layer and the transfer pattern layer is pressed by a heat roll to transfer the transfer pattern layer, and a clear top coat layer is applied on top of this. ,
With this configuration, it is possible to obtain a decorative board capable of high design expression due to pearly luster, which has not been obtained by the conventional manufacturing methods.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a laminated structure of a transfer sheet according to the present invention in section.

FIG. 2 is an explanatory view showing a laminated structure of a decorative board according to the present invention in section.

FIG. 3 is an explanatory view showing an example of a method for manufacturing a decorative board according to the present invention.

[Explanation of symbols]

 10 ... Transfer sheet 11 ... Substrate sheet 12 ... Release layer 13 ... Printing ink pattern layer 14 ... Pearl ink resin layer 15 ... Transfer pattern layer 21 ... Base material (fiber reinforced cement board) 22 ... Colored base coat layer 23 ... Pearl ink paint layer 25 ... Top coat layer 33 ... Heat roll

Claims (4)

[Claims] 1. A base coat layer is formed on the surface of a base material, and a transfer sheet is pressure-bonded onto the base coat layer by a desired means.
A method of manufacturing a decorative board for forming a transfer pattern layer, wherein the transfer pattern layer of the transfer sheet is provided with a printing ink pattern layer and a resin layer in which a pearl pigment is dispersed. Method of manufacturing a plate. 2. The method for manufacturing a decorative board according to claim 1, wherein the base coat layer is made of a base coat ink in which a pearl pigment is dispersed. 3. The method for producing a decorative board according to claim 1, wherein a pearl ink layer having a pearl pigment dispersed therein is formed on the base coat layer. 4. The method for manufacturing a decorative board according to claim 1, wherein the base material is a cement-based inorganic base material.