Decorative sheet and decorative panel

Patent metadata

Field	Value
Publication number	US-10213982-B2
Application number	US-201615744305-A
Country	US
Kind code	B2
Filing date	Jul 19, 2016
Priority date	Jul 24, 2015
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

The present invention provides a decorative sheet ( 20 A) that has at least one of visual solidity and solidity by a sense of touch. The decorative sheet ( 20 A) includes a picture pattern layer ( 2 ) formed on a sheet base material ( 1 ), a first front surface protecting layer ( 3 a ) formed on the picture pattern layer ( 2 ), a second front surface protecting layer ( 4 a ) partially formed on the first front surface protecting layer ( 3 a ), and a third front surface protecting layer ( 5 ) partially formed on the second front surface protecting layer ( 4 a ). The first front surface protecting layer ( 3 a ) and the second front surface protecting layer ( 4 a ) have different glosses. The third front surface protecting layer ( 5 ) coats an area 75% or less of the second front surface protecting layer ( 4 a ). The third front surface protecting layer ( 5 ) has a thickness four times or more of a thickness of the second front surface protecting layer ( 4 a ).

First claim

The invention claimed is:

1. A decorative sheet comprising:
a picture pattern layer formed on a sheet base material;
a first front surface protecting layer formed on the picture pattern layer;
a second front surface protecting layer partially formed on the first front surface protecting layer; and
a third front surface protecting layer partially formed on the second front surface protecting layer,
wherein the first front surface protecting layer and the second front surface protecting layer have different glosses, and
the third front surface protecting layer coats an area 75% or less of the second front surface protecting layer, the third front surface protecting layer having a thickness four times or more of a thickness of the second front surface protecting layer.

2. The decorative sheet according to claim 1 ,
wherein the third front surface protecting layer has a surface with a maximum height Rmax value measured by a contact type roughness meter of 30 μm or more.

3. The decorative sheet according to claim 1 ,
wherein the second front surface protecting layer contains a thermoset resin containing an urethane linkage.

4. The decorative sheet according to claim 1 ,
wherein the third front surface protecting layer contains a thermoset resin containing an urethane linkage.

5. The decorative sheet according to claim 1 ,
wherein the third front surface protecting layer contains an ionizing radiation cured resin.

6. The decorative sheet according to claim 1 ,
wherein the third front surface protecting layer contains a synthetic resin bead with an average grain diameter of 30 μm or more or a filler of an inorganic compound.

7. The decorative sheet according to claim 1 ,
wherein the sheet base material has a moisture-proof property.

8. A decorative sheet comprising:
a picture pattern layer formed on a sheet base material;
a first front surface protecting layer formed on the picture pattern layer; and
a second front surface protecting layer partially formed on the first front surface protecting layer,
wherein the first front surface protecting layer contains a thermoset resin containing an urethane linkage,
the second front surface protecting layer contains a thermoset resin containing an urethane linkage or an ionizing radiation cured resin, the second front surface protecting layer coating an area 0.1% or more to 30% or less of the first front surface protecting layer, and
the first front surface protecting layer has a gloss enriched compared with a gloss of the second front surface protecting layer.

9. The decorative sheet according to claim 8 ,
wherein the gloss of the second front surface protecting layer has a gradation.

10. A decorative sheet comprising:
a picture pattern layer formed on a sheet base material;
a first front surface protecting layer formed on the picture pattern layer; and
a second front surface protecting layer partially formed on the first front surface protecting layer,
wherein the first front surface protecting layer contains a thermoset resin containing an urethane linkage,
the second front surface protecting layer contains a synthetic resin bead or a filler of an inorganic compound, and
the first front surface protecting layer has a gloss enriched compared with a gloss of the second front surface protecting layer.

11. The decorative sheet according to claim 10 ,
wherein the second front surface protecting layer contains silica particles by 5 mass % or more to 35 mass % or less.

12. The decorative sheet according to claim, 6 ,
wherein the synthetic resin bead is an acrylic resin bead.

13. The decorative sheet according to claim 10 ,
wherein the second front surface protecting layer has a surface with a maximum height Rmax value measured by a contact type roughness meter of 30 μm or more.

14. The decorative sheet according to claim 10 ,
wherein the second front surface protecting layer contains a thermoset resin containing an urethane linkage and silica particles.

15. The decorative sheet according to claim 1 ,
wherein the sheet base material includes two paper base materials and a moisture-proof resin layer disposed between the two paper base materials.

16. The decorative sheet according to claim 1 ,
wherein the first front surface protecting layer contains the thermoset resin containing an urethane linkage and silica particles.

17. The decorative sheet according to claim 1 ,
wherein a concavo-convex shape is formed by an embossing process.

18. A decorative panel comprising
the decorative sheet according to claim 1 , the decorative sheet being pasted to a substrate to form the decorative panel.

19. The decorative sheet according to claim 2 ,
wherein the second front surface protecting layer contains a thermoset resin containing an urethane linkage.

20. The decorative sheet according to claim 2 ,
wherein the third front surface protecting layer contains a thermoset resin containing an urethane linkage.

Assignees

• Toppan Printing Co Ltd

Inventors

• Oshima Nonoka
• Tokumoto Naoki

Classifications

• B32B3/30 Primary

  characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)} · CPC title

• B32B15/12 Primary

  of paper or cardboard · CPC title

• B32B2255/26

  Polymeric coating · CPC title

• B32B2307/554

  Wear resistance · CPC title

• B32B21/06

  of paper or cardboard · CPC title