# US 10,273,372 B2 · Textile printing

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- Number: US 10,273,372 B2
- Document ID: US10273372B2
- Status: Granted
- Kind: B2
- Application number: 15/547,424
- Filed: 2015-04-07
- Published: 2018-02-15
- Granted: 2019-04-30
- Earliest claimed: 2015-04-07
- Assignees: HP Indigo B.V.
- Applicants: HP Indigo B.V.
- Inventors: Dafna Or-Chen; Hannoch Ron; Eyal Joseph
- Web page: https://patentgrep.com/patent/US10273372B2

## CPC

- C09D 11/101: Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
- C09D 11/00: Inks
- C09D 11/52: Electrically conductive inks
- D06P 1/525: {Polymers of unsaturated carboxylic acids or functional derivatives thereof}
- D06P 1/5285: {Polyurethanes; Polyurea; Polyguanides}
- D06P 5/2005: {Treatments with alpha, beta, gamma or other rays, e.g. stimulated rays}
- G03G 7/0093: {Image-receiving members, based on materials other than paper or plastic sheets, e.g. textiles, metals}
- G03G 8/00: Layers covering the final reproduction, e.g. for protecting, for writing thereon
- G03G 9/12: in liquid developer mixtures
- G03G 15/1625: {on a base other than paper}
- G03G 2215/00312: Other special types
- G03G 2215/00527: Fabrics, e.g. textiles
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- D06P: DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## 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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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

### Claim 3 (depends on 2)

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.

### Claim 4 (depends on 1)

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

### Claim 5 (depends on 1)

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

### Claim 6 (depends on 1)

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

### Claim 7 (depends on 5)

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

### Claim 8 (depends on 7)

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

### Claim 9 (depends on 1)

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

### Claim 10 (depends on 1)

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

### Claim 11 (depends on 10)

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

### Claim 12 (depends on 11)

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

### Claim 13 (depends on 1)

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

### Claim 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.

### Claim 15 (depends on 14)

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.

### Claim 16 (depends on 6)

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

### Claim 17 (depends on 16)

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

### Claim 18 (depends on 1)

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

### Claim 19 (depends on 1)

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