US 11,667,802 B2
Transfer media for transferring sublimation dyes onto three-dimensional surfaces
Axel Niemöller, Düren (DE); Arthur Reiners, Erkelenz (DE); Steffen Ohr, Sursee (CH); and Dominic Herren, Bern (CH)
Assigned to Sihl GmbH, Düren (DE)
Filed by Sihl GmbH, Düren (DE)
Filed on Feb. 8, 2022, as Appl. No. 17/667,131.
Claims priority of application No. 21156050 (EP), filed on Feb. 9, 2021.
Prior Publication US 2022/0251407 A1, Aug. 11, 2022
Int. Cl. D06P 5/00 (2006.01); C09D 11/328 (2014.01); C09D 11/037 (2014.01); C09D 11/106 (2014.01); C09D 11/107 (2014.01)
CPC C09D 11/328 (2013.01) [C09D 11/037 (2013.01); C09D 11/106 (2013.01); C09D 11/107 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An inkjet printable transfer medium for transferring a sublimation dye and/or another functional active ingredient to a surface of an article by means of heat in a thermoforming process, wherein the transfer medium comprises:
a carrier substrate comprising a thermoplastic polymer; and
a sublimation ink receiving coating comprising
(a) at least one sublimation ink receiving layer formed over at least a part of one surface of the carrier substrate, the sublimation ink receiving layer comprising at least one of (i) a polyvinyl alcohol and (ii) an N-functional group-containing polymer, or (iii) a polyvinyl alcohol containing N-functional groups; and
(b) a topcoat layer formed over at least a part of the sublimation ink receiving layer, the topcoat layer comprising (i) polymeric particles and at least one (ii) binder comprising a material selected from the group consisting of polyvinyl alcohol, modified cellulose, and combinations thereof.