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Decorative sheet for construction material

A technology for decorative sheets and building materials, applied in decorations, applications, home walls, etc., can solve problems such as easy cracks and cracks, and achieve crack suppression, excellent scratch resistance and impact resistance, and high design Effect

Active Publication Date: 2009-09-30
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, cracks are likely to occur when an impact is applied, and there is a problem that cracks are likely to occur in the curable resin layer when embossing is performed from the curable resin layer.
Therefore, it is expected that the curable resin layer is excellent in impact resistance and scratch resistance (crack resistance), and at the same time, it has characteristics that can easily impart an embossed pattern, so there is room for further improvement.

Method used

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  • Decorative sheet for construction material
  • Decorative sheet for construction material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] A decorative sheet for building materials was produced through the following steps.

[0102] Corona discharge treatment was applied to the front and back of the base sheet formed of a colored polypropylene film having a thickness of 60 μm. Next, on the surface of the sheet, 8 parts by weight of hexamethasone dissolved in a mixed solvent of methyl ethyl ketone and butyl acetate was applied to a total of 100 parts by weight of polyurethane resin and acrylic polyol resin by gravure printing. A solution of resin formed from methylene diisocyanate, so that the solid content is 2g / m 2 , forming a primer layer for forming a pattern pattern layer with a thickness of 2 μm. In addition, on the surface of the substrate sheet opposite to the design layer, by the gravure printing method, coated with a total of 100 parts by weight of polyurethane resin and nitrocellulose in a mixed solvent of methyl ethyl ketone and butyl acetate. A solution of 5 parts by weight of hexamethylene di...

Embodiment 2

[0117] A decorative sheet for building materials was produced in the same manner as in Example 1, except that the coating solution for the ionizing radiation-curable resin layer in Example 1 was replaced with the following coating solution composition (b).

[0118] [Coating solution composition (b) of ionizing radiation-curable resin layer]

[0119] 85 parts by weight of urethane acrylate oligomer (A)

[0120] ・UA306H (manufactured by Kyoeisha Chemical Co., Ltd., hexafunctional aliphatic urethane acrylate oligomer) 15 parts by weight

[0121] ・Silicon dioxide (manufactured by Fuji Silysia: SYLYSIA450) 10 parts by weight

[0122] 100 parts by weight of ethyl acetate

Embodiment 3

[0124] A decorative sheet for building materials was produced in the same manner as in Example 1, except that the coating solution for the ionizing radiation-curable resin layer in Example 1 was replaced with the following coating solution composition (c).

[0125] [Coating Liquid Composition (c) of Ionizing Radiation Curable Resin Layer]

[0126] 95 parts by weight of urethane acrylate oligomer (A)

[0127] · U-15HA (manufactured by Shin-Nakamura Chemical Industry, pentafunctional aliphatic urethane acrylate oligomer) 5 parts by weight

[0128] ・Silicon dioxide (manufactured by Fuji Silysia: SYLYSIA450) 10 parts by weight

[0129] 100 parts by weight of ethyl acetate

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Abstract

To provide a decorative sheet for a building material superior in impact resistance and flaw resistance, and restraining the occurrence of a crack when performing embossing finish from above a curing resin layer. The decorative sheet for the building material forms the curing resin layer on a thermoplastic resin base material sheet, and is characterized in that the curing resin layer is a hardening material layer of a resin mixture including (A) >70 wt.% and <=95 wt.% of urethane (meta) acrylate oligomer of weight average molecular weight of 1000-4000 having two radical polymeric unsaturated groups in one molecule and (B) >=5 wt.% and <=30 wt.% of aliphatic urethane (meta) acrylate oligomer having 3-15 pieces of radical polymeric unsaturated groups in one molecule.

Description

technical field [0001] The present invention relates to a decorative sheet for building materials. Background technique [0002] Currently, thermoplastic resin sheets such as polyolefins are generally used as decorative sheets for building materials for decorating Japanese-style house facilities and flooring materials. [0003] For example, Patent Document 1 discloses that a pattern pattern layer, an adhesive layer, a transparent resin layer made of a polyolefin resin, and a transparent resin layer are sequentially laminated on a base sheet made of a polyolefin-based elastomer. A decorative sheet formed from a surface protection layer. In addition, as a transparent surface protection layer, a curable resin layer (a layer obtained by curing a resin) is often used. [0004] In addition, Patent Document 2 discloses that ionization is formed directly or through other layers on a colored base material sheet composed of a material containing high-density polyethylene, thermoplas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/32B32B27/16B32B37/14B32B38/06C08J7/04C08L75/14
CPCB32B27/08B32B27/32B32B27/40B32B38/0012B32B2419/00B32B2451/00B32B2607/00C08G18/632C08G18/711C08L75/16
Inventor 竹本正孝增田洋史若松佑至
Owner DAI NIPPON PRINTING CO LTD
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