US 12,257,856 B2
Seal-type thermal transfer image-receiving sheet
Hideo Ito, Tokyo (JP); and Masayuki Tani, Tokyo (JP)
Assigned to Dai Nippon Printing Co., Ltd., Tokyo (JP)
Filed by Dai Nippon Printing Co., Ltd., Tokyo (JP)
Filed on Aug. 14, 2023, as Appl. No. 18/449,049.
Application 18/449,049 is a continuation of application No. 16/979,359, granted, now 11,772,403, previously published as PCT/JP2019/013206, filed on Mar. 27, 2019.
Claims priority of application No. 2018-069900 (JP), filed on Mar. 30, 2018.
Prior Publication US 2023/0382146 A1, Nov. 30, 2023
Int. Cl. B41M 5/41 (2006.01); B41M 5/42 (2006.01); B41M 5/52 (2006.01)
CPC B41M 5/41 (2013.01) [B41M 5/42 (2013.01); B41M 5/52 (2013.01); B41M 2205/02 (2013.01); B41M 2205/32 (2013.01); B41M 2205/38 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A seal-type thermal transfer image-receiving sheet comprising a seal portion provided peelably from a release portion,
wherein the seal-type thermal transfer image-receiving sheet has a total thickness of 250 μm or less,
wherein the release portion has a layered structure in which a release layer, a release portion substrate, and a receiving layer are layered in this order from the seal portion,
wherein the seal portion has a layered structure in which a pressure-adhesive layer, a surface resin layer, a seal portion paper substrate, and a back face resin layer are layered in this order from the release portion,
wherein either one or both of the release portion substrate or the surface resin layer comprise a layer made of polyethylene terephthalate,
wherein the total thickness of all the layers made of polyethylene terephthalate included in the release portion substrate and the surface resin layer is 50 μm or more,
wherein the sum of the thickness of the release portion substrate and the thickness of the surface resin layer is four times or more of the thickness of the back face resin layer,
wherein the thickness of the back face resin layer is 20 μm or more, and
wherein the surface resin layer comprises a first surface resin layer made of polyethylene terephthalate.