Aqueous inkjet ink composition

• US 20040092623A1
• Filed: 11/03/2003
• Published: 05/13/2004
• Est. Priority Date: 11/12/2002
• Status: Active Grant

• Current Assignee: Rohm and Haas Company (Dow, Inc.)
• Original Assignee: Rohm and Haas Company (Dow, Inc.)
• Inventors: Hesler, Carl Michael, Johnson, Eric Alvin
• Granted Patent: US 7,338,988 B2
• Time in Patent Office: Days
• US Class Current: 523/160
• CPC Class Codes: C09D 11/30 Inkjet printing inks
• CPC Class Codes: C09D 11/322 Pigment inks

Abstract

An aqueous inkjet ink composition suitable for printing on a hydrophobic surface such as a vinyl surface including an aqueous emulsion polymer having a glass transition temperature (Tg) of from −40° C. to 150° C.; a pigment; and a water-soluble surface agent is provided. Also provided is a method for providing an image on a hydrophobic surface and the image so provided.

Claims

1. An aqueous inkjet ink composition suitable for printing on a hydrophobic surface comprising an aqueous emulsion polymer having a glass transition temperature (Tg) of from −

40°

C. to 150°

C.;

a pigment; and

a water-soluble surface agent.

2. The aqueous inkjet ink composition of claim 1 wherein said aqueous emulsion polymer has a Tg of from 40°

C. to 80°

C.

3. A method for providing an image on a hydrophobic surface comprising:

forming an aqueous inkjet ink composition comprising an aqueous emulsion polymer having a Tg of from −

40°

C. to 150°

C.;

a pigment; and

a water-soluble surface agent;

jetting said ink composition onto said hydrophobic surface; and

drying, or allowing to dry, said ink composition.

4. The method of claim 3 wherein 1 wherein said aqueous emulsion polymer has a Tg of from 40°

C. to 80°

C.

5. The method of claim 3 wherein said hydrophobic surface comprises polyvinyl chloride.

6. An image on a hydrophobic surface formed by the method of claim 3.