US 12,214,618 B2
Transfer sheet
Shigenori Saito, Toyohashi (JP)
Assigned to AICELLO CORPORATION, Toyohashi (JP)
Appl. No. 17/617,234
Filed by AICELLO CORPORATION, Toyohashi (JP)
PCT Filed Jul. 3, 2020, PCT No. PCT/JP2020/026116
§ 371(c)(1), (2) Date Dec. 7, 2021,
PCT Pub. No. WO2021/002446, PCT Pub. Date Jan. 7, 2021.
Claims priority of application No. 2019-125282 (JP), filed on Jul. 4, 2019.
Prior Publication US 2022/0234383 A1, Jul. 28, 2022
Int. Cl. B44C 1/17 (2006.01); C08J 7/04 (2020.01); C08L 29/04 (2006.01)
CPC B44C 1/1708 (2013.01) [C08J 7/042 (2013.01); C08L 29/04 (2013.01); C08J 2329/04 (2013.01); C08J 2333/04 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A transfer sheet having a structure in which a polyester layer as a backing layer, a polyvinyl alcohol (PVA) layer, and a transfer layer, are stacked in this order, where the polyvinyl alcohol layer contains a triol compound whose adjacent hydroxyl groups are positioned at & or farther positions with respect to each other, the transfer sheet satisfying a condition in (i) below:
(i) a T-peel strength at a peel rate of 100 mm/min between the polyester layer and the polyvinyl alcohol layer before a transfer layer is formed but after a humidity has been adjusted in an environment of 23° C., 50% RH, is 30 mN/20 mm or greater.