Transfer sheet and decorative product using same

Patent metadata

Field	Value
Publication number	US-11325414-B2
Application number	US-201917288857-A
Country	US
Kind code	B2
Filing date	Aug 28, 2019
Priority date	Oct 26, 2018
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A transfer sheet is configured to include a base sheet; a releasable layer laminated on the base sheet, containing an ultraviolet curing resin, and including minute irregularities on at least part of a surface opposite to a surface in contact with the base sheet; a peeling layer laminated entirely on the releasable layer; and a single color solid print layer laminated in a section on the peeling layer corresponding at least to a region where the minute irregularities of the releasable layer are formed. A maximum width W of a recessed portion of the minute irregularities and a depth D of the recessed portion of the minute irregularities satisfy 10≤W/D≤50, W≤100 μm and 2 μm≤D≤10 μm. At least one of the number of recessed portions per unit area and the depth of the recessed portion changes stepwise.

First claim

The invention claimed is:

1. A transfer sheet, comprising:
a base sheet;
a releasable layer laminated on the base sheet, containing an ultraviolet curing resin, and including minute irregularities on at least part of a surface opposite to a surface in contact with the base sheet;
a peeling layer laminated entirely on the releasable layer; and
a single color solid print layer laminated in a section on the peeling layer corresponding at least to a region where the minute irregularities of the releasable layer are formed,
wherein in a case that a maximum width of a recessed portion among recessed portions of the minute irregularities is taken as W, and a depth of the recessed portion of the minute irregularities is taken as D, relations (1) and (2) given below are satisfied,
10≤ W/D≤ 50  (1)

W≤ 100 μm,2 μm≤ D≤ 10 μm  (2), and

at least one of a number of the recessed portions per unit area and the depth of the recessed portion changes stepwise.

2. The transfer sheet according to claim 1 ,
wherein at least one of the number of the recessed portions per unit area and the depth of the recessed portion changes stepwise in a portion to be transferred to a peripheral edge of a transfer target object.

3. The transfer sheet according to claim 1 , further comprising:
an adhesive layer laminated entirely on the solid print layer.

4. The transfer sheet according to claim 2 , further comprising:
an adhesive layer laminated entirely on the solid print layer.

5. A decorative product, comprising:
a transfer target object;
a single color solid print layer formed in a predetermined region on the transfer target object; and
a peeling layer formed on the solid print layer and including minute irregularities in a section corresponding to the region where the solid print layer is formed,
wherein in a case that a maximum width of a projected portion among projected portions of the minute irregularities is taken as W, and a height of the projected portion of the minute irregularities is taken as H, relations (1) and (2) given below are satisfied,
10≤ W/H≤ 50  (1)

W≤ 100 μm,2 μm≤ H≤ 10 μm  (2), and

at least one of a number of the projected portions per unit area and the height of the projected portion changes stepwise.

6. The decorative product according to claim 5 ,
wherein at least one of density of the projected portions and a depth of the projected portion changes stepwise in a peripheral edge portion of the transfer target object.

7. The decorative product according to claim 6 , further comprising:
an adhesive layer formed between the transfer target object and the solid print layer.

Assignees

• Nissha Co Ltd

Inventors

• Taniguchi Chuzo
• Wada Satoshi
• Okuda Michiyasu

Classifications

• B32B27/306

  comprising vinyl acetate or vinyl alcohol (co)polymers · CPC title

• B44F1/02

  produced by reflected light, e.g. matt surfaces, lustrous surfaces · CPC title

• B32B27/08

  of synthetic resin · CPC title

• B32B25/08

  of synthetic resin · CPC title

• B32B7/06

  permitting easy separation · CPC title