Inkjet printing

Patent metadata

Field	Value
Publication number	US-9822269-B2
Application number	US-201314417111-A
Country	US
Kind code	B2
Filing date	Jul 9, 2013
Priority date	Jul 24, 2012
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

An indirect inkjet printing method including providing a jettable ink composition, jetting said ink composition on a surface of an intermediate transfer member forming a film having an image thereon, and transferring said image to a printable substrate. The jettable ink composition includes a hydrocarbon carrier liquid, colorant and polymeric binder resin which is soluble in the hydrocarbon carrier liquid.

First claim

The invention claimed is:

1. An indirect inkjet printing method, comprising: providing a jettable ink composition comprising:
a hydrocarbon carrier liquid;
colorant; and
polymeric binder resin which is soluble in the hydrocarbon carrier liquid; wherein the polymeric binder resin in the jettable ink composition is dissolved in the hydrocarbon carrier liquid forming a solution;
jetting said ink composition on a surface of an intermediate transfer member forming a film comprising an image thereon, wherein said jetting is performed by thermal, acoustic, or piezoelectric inkjet printing; and transferring said image to a printable substrate.

2. The method according to claim 1 , wherein the film is a continuous film.

3. The method according to claim 1 , wherein the polymeric binder resin comprises polyalkylene resin.

4. The method according to claim 1 , wherein the polymeric binder resin comprises a copolymer of styrene.

5. The method according to claim 1 , wherein the colorant is a pigment and the jettable ink composition further comprises a polymeric dispersant having an amine head group.

6. The method according to claim 5 , wherein the amine head group is basic and selected from a primary or secondary amine, or wherein the amine head group is acidic and is a quaternary amine.

7. The method according to claim 1 , wherein the jettable ink composition has a viscosity of about 1 cps to about 50 cps at 25° C.

Assignees

• Hewlett Packard Indigo Bv

Inventors

• Grinwald Yaron
• Reznick Yana
• Vinegrad Adi
• Maswari Tzahi
• Katz Gregory
• Cohen Kobi
• Benjamin Dayan

Classifications

• B41M5/0256

  the transferable ink pattern being obtained by means of a computer driven printer, e.g. an ink jet or laser printer, or by electrographic means · CPC title

• C09D11/322

  Pigment inks · CPC title

• C09D11/107

  from unsaturated acids or derivatives thereof · CPC title

• Y10T428/24802

  Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] · CPC title

• C09D11/36 Primary

  based on non-aqueous solvents · CPC title