Heat transfer paper with peelable film and discontinuous coatings
View Patent ↗The present invention is directed to a unique heat transfer material for use in transferring a discontinuous coating onto a substrate, such as an article of clothing. The heat transfer material of the present invention may be used cold peel transfer processes, resulting in an image-bearing coating having superior crack resistance, washability, and breathability compared to conventional image-bearing coatings. Additionally, the materials may be used on dark colored fabrics without washed-out appearance typically associated with printing on darker fabrics. The heat transfer material of the present invention produces superior results due to the use of discontinuous coatings.
1. A heat transfer material comprising:
a substrate layer;
a release coating layer;
a peelable film layer overlying said release coating layer;
a discontinuous polymer layer having an opacifying material, said discontinuous polymer layer overlying said peelable film layer; and
a discontinuous printable layer adjacent the discontinuous polymer layer.
2. The heat transfer material of claim 1 , wherein the discontinuous printable layer includes a crosslinking agent.
3. The heat transfer material of claim 2 , wherein the crosslinking agent is selected from the group consisting of multifunctional isocyanates, epoxy resins, aziridines, oxazolines, and melamine-formaldehyde resins.
4. The heat transfer material of claim 1 , wherein the discontinuous polymer layer includes a white pigment.
5. The heat transfer material of claim 2 , wherein the discontinuous printable layer and the discontinuous polymer layer each include a crosslinking agent.
6. The heat transfer material of claim 5 , wherein the crosslinking agent is a polyfunctional aziridine crosslinking agent.
7. A heat transfer material comprising:
a substrate layer;
a release coating layer;
a peelable film layer overlying said release coating layer;
a discontinuous polymer layer having an opacifying material; and
a discontinuous printable layer, wherein said discontinuous polymer layer, said discontinuous printable layer, or combinations thereof, overlie said peelable film layer.
8. The heat transfer material of claim 7 , wherein the release coating layer is selected from the group consisting of silicone-containing polymers; acrylic polymers; poly(vinyl acetate); polysiloxanes; fluorocarbon polymers; and mixtures thereof.
9. The heat transfer material of claim 7 , wherein the release coating layer includes an additive selected from the group consisting of a crosslinking agent; a release-modifying additive; a curing agent; a surfactant; a viscosity-modifying agent; and mixtures thereof.
10. The heat transfer material of claim 7 , wherein the substrate layer is selected from the group consisting of cellulosic nonwoven webs and polymeric films.
11. The heat transfer material of claim 7 , wherein the discontinuous polymer layer, the discontinuous printable layer, or combinations thereof, include a crosslinking agent.
12. The heat transfer material of claim 11 , wherein the crosslinking agent is a polyfunctional aziridine crosslinking agent.
13. The heat transfer material of claim 2 , wherein the crosslinking agent comprises a multifunctional isocyanate.
14. The heat transfer material of claim 2 , wherein the crosslinking agent comprises an epoxy resin.
15. The heat transfer material of claim 2 , wherein the crosslinking agent comprises an aziridine.
16. The heat transfer material of claim 2 , wherein the crosslinking agent comprises an oxazoline.
17. The heat transfer material of claim 2 , wherein the crosslinking agent comprises a melamine-formaldehyde resin.
18. The heat transfer material of claim 7 , wherein the release coating layer comprises a silicone-containing polymer.
19. The heat transfer material of claim 7 , wherein the release coating layer comprises an acrylic polymer.
20. The heat transfer material of claim 7 , wherein the release coating layer comprises an poly(vinyl acetate).
21. The heat transfer material of claim 7 , wherein the release coating layer comprises a polysiloxane.
22. The heat transfer material of claim 7 , wherein the release coating layer comprises a fluorocarbon polymer.
23. The heat transfer material of claim 7 , wherein the release coating layer comprises a crosslinking agent.
24. The heat transfer material of claim 7 , wherein the release coating layer comprises a release-modifying additive.
25. The heat transfer material of claim 7 , wherein the release coating layer comprises a curing agent.
26. The heat transfer material of claim 7 , wherein the release coating layer comprises a surfactant.
27. The heat transfer material of claim 7 , wherein the release coating layer comprises a viscosity-modifying agent.
28. The heat transfer material of claim 7 , wherein the substrate layer comprises a cellulosic nonwoven web.
29. The heat transfer material of claim 7 , wherein the substrate layer comprises a polymeric film.