	US 11,807,025 B2
	Plastic material for printing by dye diffusion thermal transfer printing
Huifeng Yu, Shanghai (CN); Jianmin Yang, Shanghai (CN); Fei Teng, Shanghai (CN); Chenyu Ye, Shanghai (CN); Florian Hermes, Haltern am See (DE); and Martin Wielpütz, Senden (DE)
Assigned to Evonik Operations GmbH, Essen (DE); and Evonik Specialty Chemicals (Shanghai) Co., Ltd., Shanghai (CN)
Appl. No. 17/250,085
Filed by Evonik Operations GmbH, Essen (DE); and Evonik Specialty Chemicals (Shanghai) Co., Ltd., Shanghai (CN)
PCT Filed May 25, 2018, PCT No. PCT/CN2018/088511 § 371(c)(1), (2) Date Nov. 23, 2020, PCT Pub. No. WO2019/223008, PCT Pub. Date Nov. 28, 2019.
Prior Publication US 2021/0206187 A1, Jul. 8, 2021
Int. Cl. B41M 5/385 (2006.01); B41M 5/52 (2006.01)

CPC B41M 5/385 (2013.01) [B41M 5/5263 (2013.01); B41M 2205/02 (2013.01)]

23 Claims

1. A method for dye diffusion thermal transfer printing, comprising:

thermally transferring an ink and/or dye onto a plastic material,

wherein the plastic material comprises:

(a) a polyamide component (a), and

(b) a (co)-polyamide (b) based on ether units and amide units,

wherein the (co)-polyamide (b) is selected from the group consisting of poly-ether-block-amide (PEBA) copolymers comprising blocks of amide units and sequences of ether units,

wherein the plastic material comprises 20-80% of the PEBA copolymers.