Textile printing

Patent metadata

Field	Value
Publication number	US-10273372-B2
Application number	US-201515547424-A
Country	US
Kind code	B2
Filing date	Apr 7, 2015
Priority date	Apr 7, 2015
Publication date	Apr 30, 2019
Grant date	Apr 30, 2019

Abstract

Herein is described a method of printing an image on a textile. The method comprises electrophotographically printing an image onto a textile substrate using an electrophotographic ink composition, applying a coating composition comprising a polymer and a crosslinking agent to the printed electrophotographic ink, and crosslinking the applied coating composition.

First claim

The invention claimed is:

1. A method of printing an image on a textile, said method comprising
electrophotographically printing an image onto a textile substrate using an electrophotographic ink composition,
applying a coating composition comprising a polymer and a crosslinking agent to the printed electrophotographic ink, and
crosslinking the applied coating composition.

2. A method as claimed in claim 1 , wherein the electrophotographic ink composition is a liquid electrophotographic ink.

3. A method as claimed in claim 2 , wherein the liquid electrophotographic ink comprises:
a colorant,
an acid polymer resin,
a charge adjuvant
a charge director, and
a liquid carrier.

4. A method as claimed in claim 1 , wherein the polymer coating is applied as an aqueous polymer solution or dispersion.

5. A method as claimed in claim 1 , wherein the polymer coating comprises a polymer having a crosslinkable moiety.

6. A method as claimed in claim 1 , wherein the polymer coating comprises a polymer having a —CN and/or carboxyl group.

7. A method as claimed in claim 5 , wherein the polymer coating comprises a polymer selected from an acrylic- or polyurethane-based polymer.

8. A method as claimed in claim 7 , wherein the polymer is a styrene-acrylic polymer or a polyurethane polymer.

9. A method as claimed in claim 1 , wherein the polymer coating is crosslinked by exposure to heat and/or UV.

10. A method as claimed in claim 1 , wherein the textile substrate is treated with a primer polymer coating prior to electrophotographic printing.

11. A method as claimed in claim 10 , wherein the primer polymer coating comprises a primer polymer having a heteroatom-containing group.

12. A method as claimed in claimed in claim 11 , wherein the primer polymer is selected from ethylene acrylic acid, polyethylene imine and polyamide resins.

13. A method as claimed in claim 1 , wherein the textile substrate is a synthetic textile substrate.

14. A printed textile comprising
a textile substrate,
a layer of electrophotographically printed ink printed on the substrate, and
a crosslinked polymer coating deposited on the layer of electrophotographically printed ink.

15. A printed textile as claimed in claim 14 , wherein the textile substrate comprises a primer polymer coating deposited thereon, and wherein the layer of electrophotographically printed ink is printed over the primed substrate.

16. A method as claimed in claim 6 , wherein the polymer coating comprises a polymer selected from an acrylic- or polyurethane-based polymer.

17. A method as claimed in claim 16 , wherein the polymer is a styrene-acrylic polymer or a polyurethane polymer.

18. A method as claimed in claim 1 , wherein the crosslinking agent includes blocked (poly) isocyanate.

19. A method as claimed in claim 1 , wherein the polymer coating comprises a polymer having an isocyanurate or isocyanate group.

Assignees

• Hp Indigo Bv

Inventors

• Or-Chen Dafna
• Ron Hannoch
• Joseph Eyal

Classifications

• G03G15/1625

  on a base other than paper · CPC title

• G03G9/12

  in liquid developer mixtures · CPC title

• G03G2215/00312

  Other special types · CPC title

• G03G2215/00527

  Fabrics, e.g. textiles · CPC title

• C09D11/00

  Inks · CPC title