JPH0699550A - Manufacture of decorative plate - Google Patents

Abstract

PURPOSE:To provide a method for efficiently manufacturing a decorative plate in which a desired picture pattern harmonious with the plate having a rugged part of complicated embossed shape on a surface is imparted to the plate and which has different top coating and extremely high designing properties. CONSTITUTION:A transfer sheet 22 having a picture pattern layer harmonious with an emboss shape 21 is heat-transferred to a decorative plate having a rugged part of large emboss shape 21 of a surface and a fine rugged part of a recess part by pressing with a soft heat roll 23, a top coating is provided on the entire surface, and then a different top coating is provided only on protrusions of the large rugged part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a decorative board having a pattern on its surface, and in particular, it has a pattern having a large embossing on the surface and has a pattern in harmony therewith, and a gloss that is in synchronization with the pattern. The present invention relates to a method for efficiently producing a decorative board having a coat and a matte coat and having an extremely high design property.

[0002]

2. Description of the Related Art Conventionally, various decorative boards have been used for exterior or interior of houses or as furniture members, but in recent years, products having embossed surfaces have been favored along with the tendency toward higher quality and higher design. Has become. In the case of a conventional product having a flat surface, as a method of providing a pattern on the surface, for example, a method of laminating a sheet on which a pattern is printed on the surface or the like can be used. However, there was only a simple decoration method such as painting a single color paint or sprinkling sandy matter.

However, the design effects obtained by these methods are limited to some extent and not very effective. In addition, depending on the place where the decorative board is used, a top coat is often applied for the purpose of protecting the surface, but a single top coat, such as gloss coat for gloss coat or matte coat for matte coat, is often used. Was used in most cases. When applying a high-quality gloss coat or matte coat, which can be seen in wallpaper, to these decorative boards, first apply either top coat to the entire surface, and then apply again using masking tape or the like. Such extremely complicated work is required.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and gives a desired pattern in synchronism with a decorative plate having an embossed surface with complicated irregularities. The present invention proposes a method for efficiently manufacturing a decorative board having an extremely high design property, which has different top coats.

[0005]

In order to solve the above-mentioned problems, the present invention provides a decorative plate having an embossed surface with a large concavo-convex pattern and fine concavo-convex pattern of the concave and convex pattern layers in synchronization with the embossed pattern. Manufacturing of a decorative sheet characterized by pressing a transfer sheet with a soft heat roll to perform thermal transfer, applying a top coat to the entire surface, and then applying a different top coat only to the protrusions of large irregularities. The present invention provides a method, and is characterized in that a screen printing method or a roll coater is used to apply a top coat only to the convex portions of the large-sized irregular portion.

The present invention will be described in detail below. FIG. 1 shows the structure of the transfer sheet used in the present invention. Base sheet 1
The peeling layer 2, the pattern layer 3, and the adhesive layer 4 are sequentially provided on the surface of the.

As the base material sheet 1, a thermoplastic resin film is used which can follow the irregularities on the surface of the base material by the heat during molding. Specifically, films of vinyl chloride, polyethylene, polypropylene, nylon, polyester, etc. can be used. The type and thickness of the resin may be appropriately selected depending on the degree of unevenness of the surface and the balance with the transfer temperature.
A vinyl chloride resin film having a thickness of 0 μm or less is most suitable.

As a method of forming the following layers on the base sheet, gravure printing, screen printing, offset printing and the like can be used.

As the material of the release layer, any varnish or the like can be used, but an appropriate one is selected according to the material of the base sheet. For example, when the substrate sheet is a vinyl chloride resin film, polyvinyl butyral is suitable.

As the printing ink for the printing layer, a weather resistant ink can be used such as a pigment-based coloring material. The synthetic resin binder used in the printing ink is determined in consideration of elongation during heating, durability of the final product, and the like. For example, acrylic resin, styrene resin, alkyd resin, polyamide, polyester, polyvinyl chloride, polyvinyl acetate, or a mixture or copolymer of a combination thereof can be used.

The adhesive for the adhesive layer is appropriately selected depending on the material of the base material to be transferred. For example, when a fiber reinforced cement board is used, urethane is suitable.

FIG. 2 schematically shows the transfer method of the present invention.
The adhesive layer surface of the transfer sheet 22 shown in FIG. 1 is installed on the uneven surface of the embossing plate 21 to be decorated, and the heat roll 2 is applied from the surface.
By pressing with 3, the desired pattern is transferred.

The heat roll used at this time is a soft one that follows the irregularities of the plate. Silicon rubber having a rubber hardness of 30 ° and a wall thickness of 20 mm or more is suitable, depending on the size of the unevenness of the plate.

FIG. 3 shows the structure of the cross section of the decorative board according to the present invention. The embossing plate 31, the adhesive layer 32, the pattern layer 33, the gloss coat 34, and the matte coat 35 to be decorated are sequentially laminated. At this time, the gloss coat and the matte coat may be reversed depending on the desired design.

As a method for forming the gloss coat 34, an air spray, a flow coater, a curtain coater or the like may be used. The synthetic resin binder used for the gloss coat is appropriately determined depending on the environment in which the product is used. For example, when high durability such as an exterior is required, fluorine or acrylic silicon may be used.

After the gloss coat 34 is completely cured,
A matte coat 35 is provided. Or vice versa. To form the matte coat 35, a screen printing method or a roll coater is used. The screen printing method allows printing only on the convex portions of the uneven portion of the plate to be decorated. When using a roll coater, its coating structure
The matte coat is applied only to the convex portions of the concave and convex portions. The synthetic resin binder used for the matte coat is appropriately determined as described above, but it is desirable to use the same type of binder in consideration of adhesion to the already coated gloss coat.

[0017]

As described above, according to the present invention, it is possible to provide a desired pattern by printing on an uneven base material by a simple method, and conventionally, a complicated step such as masking with tape was required. Gloss and matte coats can be easily formed.

[0018]

EXAMPLES The present invention will be described more specifically by showing examples of the present invention.

<Example 1> A substrate sheet having a thickness of 50
On a semi-rigid vinyl chloride sheet of μm, using polyvinylgravure printing, a peeling layer made of polyvinyl butyral, a printing ink layer made of a coloring pigment (alamide yellow, phthalocyanine blue, dianthraquinonidryl red) and polyvinyl chloride vinyl chloride. (Dye and granite checkered pattern) and an adhesive layer made of urethane were sequentially laminated to obtain a transfer sheet.

With the adhesive layer of the obtained transfer sheet facing down,
The printed pattern was previously embossed in synchronization with the checkered pattern, placed on a fiber-reinforced cement plate having a large uneven pattern, and pressed from the surface with a hot roll having a surface temperature of 160 ° C. and a rubber hardness of 30 °. The pressure is 10 kg / cm and the speed is 5 m.
/ Min.

After the substrate sheet was peeled off, an acrylic silicon-based gloss clear top coat was applied to the obtained surface by spraying. The coating amount was 80 g / m ² . This was dried in an oven at 120 ° C. for 15 minutes and then left at room temperature for one day.

Acrylic silicon matte clear top coat was applied to the surface of the gloss clear top coat only by means of screen printing only on the convex portions of the large uneven pattern. The obtained product had an embossed shape, a pattern in synchronization with the embossed shape, and a gloss mat top coat.

<Example 2> A substrate sheet having a thickness of 50 μm
On a semi-rigid vinyl chloride sheet of m, by using gravure printing, a release layer made of polyvinyl butyral, a printing ink layer made of a coloring pigment (alamide yellow, phthalocyanine blue, dianthraquinonidryl red) and polyvinyl chloride vinyl acetate. (Gray granite stripe pattern), an adhesive layer made of urethane, and each layer were sequentially laminated to obtain a transfer sheet.

With the adhesive layer of the obtained transfer sheet facing down,
It is embossed in synchronization with the stripes of the printed pattern in advance and placed on a fiber reinforced cement board with a large pattern of unevenness and finer unevenness in the recesses, with a surface temperature of 160 ° C and a rubber hardness of 30 °. Pressed with a hot roll. The pressure was 10 kg / cm and the speed was 3 m / min.

After the substrate sheet was peeled off, an acrylic silicon mat clear top coat was applied to the obtained surface by spraying. The coating amount was 80 g / m ² . This was dried in an oven at 100 ° C. for 15 minutes and then left at room temperature for one day.

An acrylic silicone gloss clear top coat was applied to the surface of the matt clear top coat using a roll coater only on the convex portions of the large-scale uneven pattern. The obtained product had an embossed pattern, a pattern in synchronization with the embossed pattern, and a gloss mat top coat, and had an extremely high designability.

[0027]

As described above, according to the present invention, an embossed decorative board having a beautiful gloss mat pattern can be easily prepared in contrast to a decorative board having a large embossed surface with fine irregularities. Obtainable. Further, when the top coat is applied only to the large concave and convex concave portions, a screen printing method or a roll coater is used, so that a complicated process such as masking with a tape as in the related art is not required.

[0028]

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a transfer sheet according to the present invention.

FIG. 2 is a schematic diagram showing a transfer method according to the present invention.

FIG. 3 is a schematic view showing a decorative board according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Substrate sheet 2 ... Release layer 3 ... Design layer 4 ... Adhesive layer 21 ... Embossing plate 22 ... Transfer sheet 23 ... Heat roll 31 ... Embossing plate 32 ... Adhesive layer 33 ... Design layer 34 ... Gloss coat 35 ... Matte coat

Claims (3)

[Claims] 1. A transfer sheet having a pattern layer synchronized with the embossed shape is pressed by a flexible heating roll onto a decorative plate having a large embossed shape on the surface and fine irregularities on the recessed portion to perform heat transfer. After applying the top coat to the entire surface,
A method for manufacturing a decorative board, characterized in that different top coats are applied only to the convex portions of large rugged portions. 2. The method for manufacturing a decorative board according to claim 1, wherein a screen printing method is used to apply the top coat only to the convex portions of the large-sized concavo-convex portion. 3. The method for producing a decorative board according to claim 1, wherein a roll coater is used to apply the top coat only to the convex portions of the large-sized concavo-convex portion.