SHEET

• US 20180043669A1
• Filed: 09/29/2015
• Published: 02/15/2018
• Est. Priority Date: 03/26/2015
• Status: Active Grant

• Current Assignee: Dai Nippon Printing Company Limited
• Original Assignee: Dai Nippon Printing Company Limited
• Inventors: Iriyama, Kouhei, Kayahara, Toshinaru, Toyota, Keita
• Granted Patent: US 10,457,025 B2
• Time in Patent Office: Days
• CPC Class Codes: B32B 2255/10 on synthetic resin layer or on natural or synthetic rubber layer
• CPC Class Codes: B32B 2255/26 Polymeric coating
• CPC Class Codes: B32B 2255/28 Multiple coating on one surface
• CPC Class Codes: B32B 2264/02 Synthetic macromolecular particles
• CPC Class Codes: B32B 2264/102 Oxide or hydroxide
• CPC Class Codes: B32B 2307/406 Bright, glossy, shiny surface
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2307/416 Reflective
• CPC Class Codes: B32B 2307/538 Roughness
• CPC Class Codes: B32B 2307/732 Dimensional properties
• CPC Class Codes: B32B 2310/08 by wave energy or particle radiation
• CPC Class Codes: B32B 2363/00 Epoxy resins
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2471/00 Floor coverings B32B2419/04 takes precedence
• CPC Class Codes: B32B 2607/02 Wall papers, wall coverings
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/20 using fillers, pigments, thixotroping agents
• CPC Class Codes: B32B 27/32 comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: C08J 7/042 with two or more layers, where at least one layer of a composition contains a polymer binder
• CPC Class Codes: C08J 7/043 Improving the adhesiveness of the coatings per se, e.g. forming primers adhesives in the form of films or foils characterised by the primer layers between the polymer carriers and the adhesives C09J7/50
• CPC Class Codes: C08J 7/046 : Forming abrasion-resistant coatings; Forming surface-hardening coatings
• CPC Class Codes: E04F 15/16 : Flooring, e.g. parquet on flexible web, laid as flexible webs; Webs specially adapted for use as flooring; Parquet on flexible webresiliently-mounted floors, e.g. sprung floors, E04F15/22; linoleum D06N; carpets A47G27/00
• CPC Class Codes: Y10T 428/24893 : including particulate material
• CPC Class Codes: Y10T 428/24942 : including components having same physical characteristic in differing degree

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.

Claims

1. A sheet, wherein a surface of the sheet has an arithmetic average roughness Ra (JIS B0633:

2001) of 0.7 μ

m 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.

2. The sheet according to claim 1, wherein the sheet has a surface-protecting layer comprising an ionizing radiation-curable resin on an uppermost surface.

3. The sheet according to claim 2, wherein the surface-protecting layer comprises silica fine particles and resin beads.

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

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

6. The sheet according to claim 5, 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.

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

m.

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

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

10. 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.

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

12. The sheet according to claim 3, wherein the sheet has a transparent resin layer comprising a polyolefin resin.

13. The sheet according to claim 2, wherein the sheet has a picture pattern layer.

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

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

m.

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

m.

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

18. The sheet according to claim 3, wherein the sheet is a decorative sheet.

19. The sheet according to claim 2, wherein the sheet is a decorative sheet for floor materials.

20. The sheet according to claim 3, wherein the ionizing radiation-curable resin is at least one member selected from the group consisting of acrylate resins, polyester resins, and epoxy resins.