Decorative sheet and decorative member

Patent metadata

Field	Value
Publication number	US-12502863-B2
Application number	US-202318832537-A
Country	US
Kind code	B2
Filing date	Mar 17, 2023
Priority date	Mar 17, 2022
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

A decorative sheet includes a first surface and a second surface positioned opposite to the first surface. The first surface includes a first region and a second region that is different from the first region. The decorative sheet includes a surface protective layer, a design layer, and a substrate in order from the first surface toward the second surface. The design layer includes a patterned portion disposed only in a location that overlaps the first region. An average skewness Ssk1 of the first region and the average skewness Ssk2 of the second region satisfy a relationship (i), shown below. An average kurtosis Sku1 of the first region A1 and an average kurtosis Sku2 of the second region satisfy a relationship (ii), shown below

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First claim

The invention claimed is:

1 . A decorative sheet comprising a first surface and a second surface positioned opposite to the first surface, wherein
the first surface comprises a first region and a second region that is different from the first region, the decorative sheet comprises a surface protective layer, a design layer, and a substrate in order from the first surface toward the second surface, the design layer comprises a patterned portion disposed only in a location that overlaps the first region, an average 60° specular gloss measured on the first surface is 6 or less, an average 85° specular gloss measured on the first surface is 9 or less, an average skewness Ssk1 of the first region and an average skewness Ssk2 of the second region, in accordance with a definition in ISO 25178-2:2012, satisfy a relationship (i), shown below, and an average kurtosis Sku1 of the first region and an average kurtosis Sku2 of the second region, in accordance with a definition in ISO 25178-2:2012, satisfy a relationship (ii), shown below

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ii
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2 . The decorative sheet according to claim 1 , further comprising a low-gloss portion that overlaps the patterned portion, wherein
the surface protective layer comprises a binder resin and first particles held by the binder resin.

3 . The decorative sheet according to claim 2 , wherein the low-gloss portion comprises inorganic particles.

4 . The decorative sheet according to claim 2 , wherein some of the first particles project from the binder resin.

5 . The decorative sheet according to claim 4 , wherein a number of first particles that project from the binder resin in a location that overlaps the first region is greater than a number of first particles that project from the binder resin in a location that overlaps the second region.

6 . The decorative sheet according to claim 2 , wherein an average particle size of the first particles is greater than an average length between the first surface and the low-gloss portion.

7 . The decorative sheet according to claim 2 , wherein an average length between the first surface and the low-gloss portion is 3 μm or greater and 12 μm or less.

8 . The decorative sheet according to claim 1 , wherein the substrate comprises paper.

9 . The decorative sheet according to claim 8 , further comprising a primer layer disposed between the substrate and the surface protective layer.

10 . A decorative member comprising:
the decorative sheet according to claim 1 ; and a support member supporting the decorative sheet.

Assignees

• Dainippon Printing Co Ltd

Inventors

• NISSATO Emi
• Usui Hironaga

Classifications

• B32B3/22

  of spaced pieces {(not used)} · CPC title

• B32B3/16

  secured to a flexible backing · CPC title

• B32B3/14

  characterised by a face layer formed of separate pieces of material {which are juxtaposed side-by-side (B32B5/02 takes precedence)} · CPC title

• B32B7/05

  the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection (using interposed adhesives or bonding materials applied in spaced arrangements B32B7/14) · CPC title

• B44C5/04

  Ornamental plaques, e.g. decorative panels, decorative veneers · CPC title