Decorative sheet

Patent metadata

Field	Value
Publication number	US-10792887-B2
Application number	US-201515515244-A
Country	US
Kind code	B2
Filing date	Sep 30, 2015
Priority date	Sep 30, 2014
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

Provided is a decorative sheet that, due to an asperity profile, creates a highly textured impression, such as a contoured impression, three-dimensional impression, impression of depth, and the like, even after being molded, and that has exceptional surface flatness. This decorative sheet has a layer that includes at least a transparent resin film layer, the layer that includes at least the transparent resin film layer having on one surface thereof an asperity profile having recesses that reach the transparent resin film layer, and includes an area in which the depth (d) of the recesses of the asperity profile, and the thickness T from the start point of the depth (d) to the surface on the opposite side from the surface that has the asperity profile in the layer that includes the transparent resin film layer, satisfy the relationship (d)/T×100=5-10, and is intended for use as a decorative resin molded article in which a molding resin is laminated to the surface having the asperity profile.

First claim

The invention claimed is:

1. A decorative sheet comprising a layer including at least a transparent resin film layer, wherein
the layer including the transparent resin film layer has on one surface an irregularity shape having a recess extending into the transparent resin film layer, and
the layer including the transparent resin film layer includes a region where a depth d of the recess in the irregularity shape and a thickness T from a start point of the depth d to a surface on a side opposite to the surface having the irregularity shape in the layer including the transparent resin film layer satisfy a relationship of d/T×100=5.9 to 8.7,
the depth d is 8 to 13 μm,
the layer including the transparent resin film layer includes the transparent resin film layer and a design layer,
the recess in the irregularity shape is formed so as to extend from the design layer side to the transparent resin film layer,
further comprising a support film layer on the surface of the layer including the transparent resin film layer, which has the irregularity shape,
the support film layer is laminated so as to fill the recess in the irregularity shape,
the thickness of the support film is 0.2 to 0.5 mm, and
the decorative sheet is used for obtaining a decorative resin molded article by laminating the surface having the irregularity shape to a molded resin.

2. The decorative sheet according to claim 1 , wherein the transparent film layer is formed of an acryl-based resin.

3. A decorative resin molded article obtained by laminating the decorative sheet according to claim 1 to a molded resin.

4. A decorative resin molded article obtained by laminating the decorative sheet according to claim 2 to a molded resin.

Assignees

• Dainippon Printing Co Ltd

Inventors

• Kataoka Sakie
• Hirose Emi
• Sutou Masatoshi

Classifications

• B29C37/0028 Primary

  In-mould coating, e.g. by introducing the coating material into the mould after forming the article · CPC title

• Y10T428/24529

  and conforming component on an opposite nonplanar surface · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• B29L2031/722

  Decorative or ornamental articles · CPC title

• B29C59/046

  for layered or coated substantially flat surfaces · CPC title