JPS6324479B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a wiping-like decorative material, and more specifically, a transfer layer containing a pattern of foamed ink is transferred onto the surface of a foamable resin layer, and the foamable resin layer is heated and foamed. The pattern of the foamed ink is melted and depressed when the foamed ink is applied, thereby forming a recessed portion having an appearance as if it had been wiped.

Foamed decorative materials having an uneven pattern on the surface are widely used because of their attractive design and cushioning properties. However, it is impossible to create a wiping-like effect with colored concave bottoms, such as the conduit grooves with a woodgrain pattern, using conventional methods such as using foam suppressants. The so-called wiping method, in which the colorant is applied to the surface of the foam and then wiped off from areas other than the concave portions, has the disadvantage that the foamed surface may be damaged or cannot be completely wiped off, and cannot be put to practical use.

The present invention has been made in order to eliminate the above-mentioned drawbacks, and is made by forming recesses obtained by melting foamed ink on the surface of a foamable resin layer and reducing its volume. The present invention is characterized in that a concave portion having an appearance as if it had been wiped is obtained on the surface of the decorative material.

The present invention will be explained in detail below with reference to the drawings.

FIGS. 1 and 2 show the manufacturing process of the transfer sheet used in the present invention. First, as shown in FIG. 1, a pattern is applied to the surface of the transfer sheet base material 1 using foam ink 2. Next, as shown in FIG. 2, the foamed ink 2 is foamed, and a transparent resin layer 3 is formed on the entire surface thereof. This transparent resin layer is formed so that the height is the same in both areas where foamed ink is present and where there is no foamed ink, that is, so that the surface after application of the transparent resin layer is flat, and furthermore, any pattern is formed on it. 4 to prepare a transfer sheet.

Next, using the transfer sheet configured as described above, the pattern of the foam ink on the transfer sheet is applied to the surface of the foamable resin composition 5 provided on the base material 6 for decorative material as shown in FIG. Transfer the transparent resin layer and any pattern.

Next, when the decorative material that has been transferred is heated, the foamable resin layer foams to form a foam layer 5' as shown in FIG. The foamed ink, which has been melted and reduced in volume, remains at the bottom of the recess in a state similar to a coloring material applied by the wiping method, resulting in a wiping-like decorative material.

Next, each component will be explained.

As the transfer sheet base material, use may be made of paper with extruded lamination of polypropylene on one side, paper coated with polyamide resin or aminoalkyd resin, or the like.

Foaming inks include New Dyhome (manufactured by Dainichiseika Co., Ltd.), which contains microcapsules of butadiene gas, or foaming ink with an extremely low foaming temperature (130
It is also possible to use a foamed paste at a temperature of around 30°F. In addition, it is also possible to use a foaming agent selected from various known foaming agents that foams at a relatively low temperature and blended with a resin that melts when the foamable resin layer is heated and foamed. In any case, pigments such as carbon black and iron oxide, extender pigments, matting agents, etc. are mixed in so that they function as colorants after being melted.

The transparent resin layer is formed using vinyl chloride plastisol, ethylene vinyl acetate resin, vinyl chloride latex, vinyl chloride vinyl acetate resin, urethane resin, acrylic resin, nitrified cotton, cellulose acetate resin, melamine resin, or the like.

Any pattern is formed using commonly used ink. For example, those using a vinyl chloride-based binder, those using a vinyl acetate-based binder, etc. can be used.

The foamable resin layer is formed using a mixture of polyvinyl chloride resin, ethylene vinyl acetate resin, vinyl chloride vinyl acetate resin, etc., and a known blowing agent as described below.

As the blowing agent, azodicarbonamide, azobisisobutyronitrile, benzenesulfonyl hydrazide, and others are used.

As the base material for the decorative material, asbestos sheets, glass nonwoven fabrics, aluminum foils, iron foils, etc. can be used.

The wiping-like decorative material obtained by the method of the present invention can be used in a wide range of applications, such as flooring materials, wall covering materials, and daily necessities, depending on the type of base material used.

The present invention having the above configuration has the following effects.

Unlike the wiping method, this method does not have the drawback of not being able to completely wipe off coloring material that has adhered to areas other than the recessed portions.

The design effect is outstanding because the recess is sharp and the bottom is matte.

(Example) Foaming ink containing microcapsules containing butadiene gas sealed in an ethylene vinyl acetate binder on one side of a base paper with a basis weight of 80 g/m ² that is extruder laminated with polypropylene on one side: New Daihome (Manufactured by Dainichiseika Co., Ltd.)
After applying a wood grain conduit pattern and foaming the foamed ink, a transparent vinyl chloride plastisol of the following formulation was applied so that the surface was evenly distributed to prepare a transfer sheet.

Vinyl chloride plastisol composition Vinyl chloride resin G-43 (Nippon Zeon Co., Ltd.) Vinyl chloride resin 103ZX (Nippon Zeon Co., Ltd.) Plasticizer DOP Stabilizer KR-69A-10 (Kyodo Yakuhin Co., Ltd.) 70 parts by weight 30 parts by weight 30 parts by weight 3 parts by weight Next, a foamable resin of the following composition is applied to the surface of the asbestos sheet to a thickness of 500μ, and after gelling, the transfer sheet is turned with its pattern forming side facing the foamable resin layer. After removing the transfer sheet base material, they were heated at 200°C for 2 minutes to obtain a foamed decorative material.

Formulated with foamable resin Vinyl chloride resin PSL-10 (manufactured by Kanebuchi Chemical Co., Ltd.) Plasticizer (DOP) titanium white zinc oxide Foaming agent AZ-S (Manufactured by Otsuka Chemical Co., Ltd.) 100 parts by weight 40 parts by weight 5 parts by weight 0.5 parts by weight 2.5 parts by weight

[Brief explanation of the drawing]

The drawings show embodiments of the present invention.
2 and 2 are explanatory diagrams showing the manufacturing process of the transfer sheet, FIG. 3 is an explanatory diagram showing the process of forming a pattern on the surface of the foamable resin layer using the transfer sheet, and FIG. 4 is a cross-section of the obtained decorative material. Figures are shown respectively. 1... Transfer sheet base material, 2... Foamed ink, 3... Transparent resin layer, 4... Pattern, 5... Foamable resin composition,
5'... Foamed layer, 6... Base material for decorative board, 7... Recessed portion.

Claims (1)

[Claims] 1 Form an arbitrary pattern on the surface of the transfer sheet base material using foamed ink, and after foaming the ink, form a transparent resin layer on top of it so that the coated surface is flat, and then add any pattern on top of it so that the coated surface is flat. The step of producing a transfer sheet by applying a pattern, a foamable resin layer is formed on the surface of a base material for a decorative material, and the transfer sheet is layered on top of the foamed ink pattern, a transparent resin layer, and an arbitrary pattern. A method for producing a wiping-like decorative material comprising a step of transferring, and a step of heating the transferred decorative material to foam a foamable resin layer and simultaneously melting and sinking the pattern of the foamed ink.