Patent JPS4875894A successfully refreshed from Google Patents.
Patent EP0223501A2 successfully refreshed from Google Patents.
EP0223501A2
Expired / Lapsed
EP
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Waterfast ink jet compositions and process
Assignee: Xerox Corp
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Filing: 1986-11-05
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Granted: —
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Expires: 2006-11-05
Abstract
Abstract An ink composition comprising a major amount of water, and a polymeric dye comprising the reaction product of a water soluble polymer such as a polyethylenimine with a reactive dye such as a sulfonated water soluble dye containing monohalotriazinyl groups.
Inventors
- 👤 David A. Allen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 21:08
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328; C09B; C09B69/00; C09B69/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
32 words
An ink composition comprising a major amount of water and a polymeric dye, characterised in that the polymeric dye comprises a water soluble polymer having covalently bonded thereto a stable chromophore moiety.
Claim 2
Dependent Claim
32 words
An ink composition comprising a major amount of water and a polymeric dye, characterised in that the polymeric dye comprises a water soluble polymer having covalently bonded thereto a stable chromophore moiety.
Claim 3
Dependent Claim
16 words
An ink composition in accordance with claim 1 wherein the water soluble polymer is a polyethylenimine.
Claim 4
Dependent Claim
22 words
An ink composition in accordance with claim 2 wherein the polyethylenimine is of a molecular weight of from 10,000 to about 70,000.
Claim 5
Dependent Claim
29 words
An ink composition in accordance with claim 2 wherein the polyethylenimine is of the formula (-CH₂CH₂NH-) x wherein x is a number of from about 1,000 to about 1,500.
Claim 6
Dependent Claim
33 words
An ink composition in accordance with any one of claims 2 to 4 wherein the polymeric dye comprises the reaction product of the polyethylenimine and a sulfonated water soluble dye containing monohalotriazinyl groups.
Claim 7
Dependent Claim
28 words
An ink composition in accordance with claim 5 wherein the sulfonated dye is Reactive Red 4, Reactive Black 31, Reactive Blue 7, Reactive Red 24, or mixtures thereof.
Claim 8
Dependent Claim
62 words
An ink composition in accordance with claim 6 wherein a black polymeric dye comprises Reactive Blue 7 in an amount of about 29 percent by weight, Reactive Yellow 2 in an amount of about 38 percent by weight, Reactive Red 24 in an amount of about 17 percent by weight; and the polyethylenimine in an amount of about 17 percent by weight.
Claim 9
Dependent Claim
35 words
An ink composition in accordance with any one of claims 1 to 7 wherein the polymeric dye is present in an amount of from about 4 percent by weight to about 15 percent by weight.
Claim 10
Dependent Claim
31 words
An ink composition in accordance with any one of claims 1 to 8 further including therein a compound selected from the group consisting of benzyl alcohol, N-n-butyldiethanolamine, 2-(2-butoxyethoxy)-ethanol, and 1-methyl-2- pyrrolidinone.
Claim 11
Independent Claim
39 words
A method of developing images formulated in ink jet printing processes which comprises generating an image and subsequently directing ink droplets onto a paper surface, which droplets comprise the ink composition of any one of claims 1 to 9.
References Cited (Backward Citations)
No citation records indexed.
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