Ink jet recording element

• US 20020155260A1
• Filed: 03/25/2002
• Published: 10/24/2002
• Est. Priority Date: 03/09/2000
• Status: Active Grant

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Chen, Tienteh, Sadasivan, Sridhar, Wang, Xiaoru, Gallo, Elizabeth A., Chu, Lixin
• Granted Patent: US 6,677,008 B2
• Time in Patent Office: Days
• US Class Current: 428/32.36
• CPC Class Codes: B41M 5/52 Macromolecular coatings
• CPC Class Codes: B41M 5/5218 characterised by inorganic additives, e.g. pigments, clays
• CPC Class Codes: B41M 5/5245 characterised by the use of polymers containing cationic or anionic groups, e.g. mordants
• CPC Class Codes: B41M 5/5254 characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers

Abstract

An ink jet recording element having a substrate having thereon an image-receiving layer of a filler and coated particles of a polymeric hard core-polymeric soft shell, the Tg of the polymeric hard core material being greater than about 60° C., the Tg of the polymeric soft shell material being less than about 100° C., and the filler being present in the image-receiving layer in an amount of from about 50 to about 95% by weight, the substrate being paper, resin-coated paper, synthetic paper, impregnated paper, cellulose acetate or a polyester film.

Claims

1. An inkjet recording element comprising a substrate having thereon an image-receiving layer comprising a filler and coated particles comprising a polymeric hard core-polymeric soft shell, the Tg of said polymeric hard core material being greater than about 60°

C., the Tg of said polymeric soft shell material being less than about 100°

C., and said filler being present in said image-receiving layer in an amount of from about 50 to about 95% by weight, said substrate being paper, resin-coated paper, synthetic paper, impregnated paper, cellulose acetate or a polyester film.

2. The recording element of claim 1 wherein said filler comprises a metal oxide, metal hydroxide, calcium carbonate, barium sulfate, clay or polymeric beads.

3. The recording element of claim 2 wherein said metal oxide is silica, alumina, zirconia or titania.

4. The recording element of claim 1 wherein the particle size of said filler is from about 5 nm to about 5000 nm.

5. The recording element of claim 1 wherein the particle size of said coated particles is from about 5 nm to about 1000 nm.

6. The recording element of claim 1 wherein said Tg of said polymeric soft shell material is from about −

50°

C. to about 65°

C.

7. The recording element of claim 1 wherein said polymeric soft shell material is derived from a cationic, anionic or nonionic monomer.

8. The recording element of claim 7 wherein said monomer contains a quaternary ammonium, pyridinium, imidazolium, sulfonate, carboxylate or phosphonate functionality.

9. The recording element of claim 1 wherein said polymeric soft shell material is derived from an acrylate-containing monomer.

10. The recording element of claim 1 wherein said polymeric soft shell material is derived from a styrene-containing monomer.

11. The recording element of claim 9 wherein said polymeric soft shell material is poly(n-butyl acrylate), poly(2-ethylhexyl acrylate) poly(methoxyethylacrylate), poly(ethoxy-ethylacrylate), poly(n-butylacrylate-co-trimethylammoniumethyl acrylate), poly(n-butylacrylate-co-trimethylammoniumethyl methacrylate) or poly(n-butylacrylate-co-vinylbenzyltrimethylammonium chloride).

12. The recording element of claim 1 wherein said coated particles are prepared by polymerizing a monomer in the presence of said polymeric hard core material.

13. The recording element of claim 1 wherein said coated particles are prepared by adsorption of said polymeric soft shell material onto the surface of said polymeric hard core material.

14. The recording element of claim 1 wherein said coated particles are prepared by chemical bond formation between said polymeric hard core material and said polymeric soft shell material.

15. The recording element of claim 1 wherein the weight ratio of said polymeric hard core material to said polymeric soft shell material is from about 0.2:

1 to about 20;

1.

16. The recording element of claim 1 wherein said polymeric hard core material is poly(methylmethacrylate), poly(styrene), poly(p-methylstyrene), poly(t-butylacrylamide) or poly(styrene-co-methylmethacrylate).

17. The recording element of claim 1 wherein a base layer is coated between said substrate and said image-receiving layer.