US 12,420,538 B2
Transfer sheet for forming recessed and projecting shape, method of producing transfer sheet for forming recessed and projecting shape, and method of forming recessed and projecting shape
Ryoko Shinohara, Osaka (JP)
Assigned to O-WELL CORPORATION, Osaka (JP)
Appl. No. 18/042,866
Filed by O-WELL CORPORATION, Osaka (JP)
PCT Filed Aug. 28, 2020, PCT No. PCT/JP2020/032667
§ 371(c)(1), (2) Date Feb. 24, 2023,
PCT Pub. No. WO2022/044275, PCT Pub. Date Mar. 3, 2022.
Prior Publication US 2023/0321967 A1, Oct. 12, 2023
Int. Cl. B32B 37/00 (2006.01); B32B 3/30 (2006.01); B32B 27/28 (2006.01); B32B 27/30 (2006.01)
CPC B32B 37/025 (2013.01) [B32B 3/30 (2013.01); B32B 27/28 (2013.01); B32B 27/306 (2013.01); B32B 2307/7166 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transfer sheet for forming a recessed and projecting shape, comprising:
a water-soluble resin layer that is formed of a water-soluble resin whose dissolving time in distilled water at 25° C. is 0.2 s/μm or more and 1.0 s/μm or less and includes recesses and projections on a first surface thereof; and
a water-insoluble resin layer that is stacked on the first surface,
wherein the water-soluble resin layer contains a latex.