Inkjet printing process and non-aqueous ink set

US9624394B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9624394-B2
Application numberUS-201414574683-A
CountryUS
Kind codeB2
Filing dateDec 18, 2014
Priority dateDec 27, 2013
Publication dateApr 18, 2017
Grant dateApr 18, 2017

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  2. Abstract

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  5. First independent claim

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Abstract

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An inkjet printing process including forming an image by superposing two or more kinds of inks, wherein the two or more kinds of inks contain (A) an ink containing at least a first coloring material, a non-aqueous solvent, a non-aqueous resin, and a water-soluble resin having an amino group, and (B) an ink containing at least a second coloring material, a non-aqueous solvent, and a nitrogen-containing graft copolymer having a polyester side chain, and a non-aqueous ink set containing the ink (A) and the ink (B).

First claim

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What is claimed is: 1. An inkjet printing process comprising forming an image by superposing two or more different inks selected from an ink set, the ink set comprising: (A) an ink containing at least a first coloring material, a non-aqueous solvent, a non-aqueous resin, and a water-soluble resin having an amino group, and (B) an ink containing at least a second coloring material, a non-aqueous solvent, and a nitrogen-containing graft copolymer having a polyester side chain. 2. The inkjet printing process according to claim 1 , wherein the image is a composite black image, and the first coloring material contains carbon black. 3. The inkjet printing process according to claim 1 , wherein the second coloring material contains copper phthalocyanine. 4. The inkjet printing process according to claim 2 , wherein the second coloring material contains copper phthalocyanine. 5. The inkjet printing process according to claim 1 , wherein the image is a color image, and the first coloring material and the second coloring material contain coloring materials of chromatic colors. 6. The inkjet printing process according to claim 1 , wherein the non-aqueous resin is an acrylic polymer formed of a copolymer of a monomer mixture containing (a) an alkyl(meth)acrylate having an alkyl group having 8 to 18 carbon atoms, and (b) a monomer having a β-diketone group or a β-ketoacid ester group. 7. The inkjet printing process according to claim 1 , wherein the water-soluble resin is a polyethyleneimine. 8. The inkjet printing process according to claim 1 , wherein the image is formed by superposing the ink (B) on the ink (A). 9. The inkjet printing process according to claim 2 , wherein the image is formed by superposing the ink (B) on the ink (A). 10. The inkjet printing process according to claim 3 , wherein the image is formed by superposing the ink (B) on the ink (A). 11. The inkjet printing process according to claim 4 , wherein the image is formed by superposing the ink (B) on the ink (A). 12. The inkjet printing process according to claim 5 , wherein the image is formed by superposing the ink (B) on the ink (A). 13. The inkjet printing process according to claim 6 , wherein the image is formed by superposing the ink (B) on the ink (A). 14. The inkjet printing process according to claim 7 , wherein the image is formed by superposing the ink (B) on the ink (A). 15. A non-aqueous ink set comprising (A) an ink containing at least a first coloring material, a non-aqueous solvent, a non-aqueous resin, and a water-soluble resin having an amino group, and (B) an ink containing at least a second coloring material, a non-aqueous solvent, and a nitrogen-containing graft copolymer having a polyester side chain.

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What does patent US9624394B2 cover?
An inkjet printing process including forming an image by superposing two or more kinds of inks, wherein the two or more kinds of inks contain (A) an ink containing at least a first coloring material, a non-aqueous solvent, a non-aqueous resin, and a water-soluble resin having an amino group, and (B) an ink containing at least a second coloring material, a non-aqueous solvent, and a nitrogen-con…
Who is the assignee on this patent?
Riso Kagaku Corp
What technology area does this patent fall under?
Primary CPC classification C09D11/36. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Apr 18 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).