Sheet

Patent metadata

Field	Value
Publication number	US-10457025-B2
Application number	US-201515554525-A
Country	US
Kind code	B2
Filing date	Sep 29, 2015
Priority date	Mar 26, 2015
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

The present invention provides a sheet, wherein the sheet has an excellent low-gloss feeling; even when oblique light is incident on a surface of the sheet, diffuse reflection of the light is suppressed, the surface is less likely to look white when viewed obliquely, and a design represented on the sheet can be visually recognized; and the sheet has excellent designability. In the sheet, a surface of the sheet has an arithmetic average roughness Ra (JIS B0633: 2001) of 0.7 μm or less, and the reflectance at a detection angle equal to a regular reflection angle ±5°, measured by a variable angle photometer when the surface is irradiated with incident light at an incident angle of 75°, is 50% or less of the reflectance at the regular reflection angle.

First claim

The invention claimed is:

1. A sheet, wherein a surface of the sheet has an arithmetic average roughness Ra (JIS B0633: 2001) of 0.7 μm or less, and the reflectance at a detection angle equal to a regular reflection angle ±5°, measured by a variable angle photometer when the surface is irradiated with incident light at an incident angle of 75°, is 50% or less of the reflectance at the regular reflection angle, wherein the sheet has a surface-protecting layer comprising an ionizing radiation-curable resin on an uppermost surface, wherein the surface-protecting layer comprises silica fine particles and resin beads.

2. A sheet, wherein a surface of the sheet has an arithmetic average roughness Ra (JIS B0633: 2001) of 0.7 μm or less, and the reflectance at a detection angle equal to a regular reflection angle ±5°, measured by a variable angle photometer when the surface is irradiated with incident light at an incident angle of 75°, is 50% or less of the reflectance at the regular reflection angle, wherein the sheet has a picture pattern layer and a transparent resin layer comprising a polyolefin resin, wherein at least the picture pattern layer, the transparent resin layer, and the surface-protecting layer are laminated in this order on a base material sheet.

3. A sheet, wherein a surface of the sheet has an arithmetic average roughness Ra (JIS B0633: 2001) of 0.7 μm or less, and the reflectance at a detection angle equal to a regular reflection angle ±5°, measured by a variable angle photometer when the surface is irradiated with incident light at an incident angle of 75°, is 50% or less of the reflectance at the regular reflection angle, wherein the sheet is a decorative sheet.

4. The sheet according to claim 3 , wherein the sheet is a decorative sheet for floor materials.

5. The sheet according to claim 1 , wherein the ionizing radiation-curable resin is at least one member selected from the group consisting of acrylate resins, polyester resins, and epoxy resins.

6. The sheet according to claim 2 , wherein the sheet has a transparent resin layer comprising a polyolefin resin.

7. The sheet according to claim 1 , wherein the sheet has a transparent resin layer comprising a polyolefin resin.

8. The sheet according to claim 3 , wherein the sheet has a picture pattern layer.

9. The sheet according to claim 1 , wherein the sheet has a picture pattern layer.

10. The sheet according to claim 2 , wherein the sheet has a thickness of 50 to 600 μm.

11. The sheet according to claim 1 , wherein the sheet has a thickness of 50 to 600 μm.

12. The sheet according to claim 2 , wherein the sheet is a decorative sheet.

13. The sheet according to claim 1 , wherein the sheet is a decorative sheet.

14. The sheet according to claim 1 , wherein the sheet is a decorative sheet for floor materials.

15. The sheet according to claim 2 , wherein the ionizing radiation-curable resin is at least one member selected from the group consisting of acrylate resins, polyester resins, and epoxy resins.

16. The sheet according to claim 3 , wherein the sheet has a thickness of 50 to 600 μm.

17. The sheet according to claim 2 , wherein the sheet has a surface-protecting layer comprising an ionizing radiation-curable resin on an uppermost surface, wherein the surface-protecting layer comprises silica fine particles and resin beads.

18. The sheet according to claim 3 , wherein the sheet has a surface-protecting layer comprising an ionizing radiation-curable resin on an uppermost surface, wherein the surface-protecting layer comprises silica fine particles and resin beads.

Assignees

• Dainippon Printing Co Ltd

Inventors

• Iriyama Kouhei
• Kayahara Toshinaru
• Toyota Keita

Classifications

• E04F15/16

  Flooring, e.g. parquet on flexible web, laid as flexible webs; Webs specially adapted for use as flooring; {Parquet on flexible web}(resiliently-mounted floors, e.g. sprung floors, E04F15/22; linoleum D06N; {carpets A47G27/00}) · CPC title

• B32B2264/02

  Synthetic macromolecular particles · CPC title

• B32B2264/102

  Oxide or hydroxide · CPC title

• B32B2307/416

  Reflective · CPC title

• B32B2607/02

  Wall papers, wall coverings · CPC title