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US4659382A
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Waterfast ink jet compositions and process
Assignee: Xerox Corp
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Filing: 1985-11-12
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Granted: 1987-04-21
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Expires: 2005-11-12
Abstract
Abstract Disclosed in an ink jet composition comprised of a major amount of water, a hydroxyethylated polyethylenimine polymer, and a dye component wherein the polymer has incorporated therein from about 65 percent by weight to about 80 percent by weight of hydroxyethyl groups.
Inventors
- 👤 Henry R. Kang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:33
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; Y; Y10; Y10S; Y10S260/00; Y10S260/38
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
40 words
An ink jet composition comprised of a major amount of water, a hydroxyethylated polyethylenimine polymer, and a dye component wherein the polymer has incorporated therein from about 65 percent by weight to about 80 percent by weight of hydroxyethyl groups.
Claim 2
Dependent Claim
40 words
An ink jet composition comprised of a major amount of water, a hydroxyethylated polyethylenimine polymer, and a dye component wherein the polymer has incorporated therein from about 65 percent by weight to about 80 percent by weight of hydroxyethyl groups.
Claim 3
Dependent Claim
21 words
A composition in accordance with claim 1 wherein the polyethylenimine is comprised of about 80 percent by weight of hydroxyl groups.
Claim 4
Dependent Claim
20 words
A composition in accordance with claim 1 wherein the pH of the ink is from about 8 to about 10.
Claim 5
Dependent Claim
29 words
A composition in accordance with claim 1 wherein the dye is black and is selected from the group consisting of Direct Dyes, Acid Dyes, Food Dyes, and Reactive Dyes.
Claim 6
Dependent Claim
16 words
A composition in accordance with claim 4 wherein the black dye is Pontamine Black SP Liquid.
Claim 7
Dependent Claim
13 words
A composition in accordance with claim 1 wherein a color dye is selected.
Claim 8
Dependent Claim
22 words
A composition in accordance with claim 6 wherein the color dye is selected from the group consisting of blue, red, and yellow.
Claim 9
Dependent Claim
29 words
A composition in accordance with claim 1 wherein the hydroxyethylated polyethylenimine is present in an amount of from about 2 percent by weight to about 6 percent by weight.
Claim 10
Dependent Claim
28 words
A composition in accordance with claim 1 wherein the dye is present in an amount of from about 1 percent by weight to about 10 percent by weight.
Claim 11
Dependent Claim
24 words
A composition in accordance with claim 1 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 12
Dependent Claim
26 words
A composition in accordance with claim 10 wherein the compounds selected are present in an amount of from about 0.5 to about 5 percent by weight.
Claim 13
Independent Claim
69 words
A method for the formulation of images which comprises providing an ink jet printing apparatus; generating an image on a substrate; and subsequently affecting development of this image with an ink composition comprised of a major amount of water, a hydroxyethylated polyethylenimine polymer, and a dye component wherein the polymer has incorporated therein from about 65 percent by weight to about about 80 percent by weight of hydroxyethyl groups.
Claim 14
Independent Claim
69 words
A method for the formulation of images which comprises providing an ink jet printing apparatus; generating an image on a substrate; and subsequently affecting development of this image with an ink composition comprised of a major amount of water, a hydroxyethylated polyethylenimine polymer, and a dye component wherein the polymer has incorporated therein from about 65 percent by weight to about about 80 percent by weight of hydroxyethyl groups.
Claim 15
Dependent Claim
23 words
A method of imaging in accordance with claim 12 wherein the polyethylenimine is comprised of about 80 percent by weight of hydroxyl groups.
Claim 16
Dependent Claim
22 words
A method of imaging in accordance with claim 12 wherein the pH of the ink is from about 8 to about 10.
Claim 17
Dependent Claim
31 words
A method of imaging in accordance with claim 12 wherein the dye is black and is selected from the group consisting of Direct Dyes, Acid Dyes, Food Dyes, and Reactive Dyes.
Claim 18
Dependent Claim
18 words
A method of imaging in accordance with claim 15 wherein the black dye is Pontamine Black SP Liquid.
Claim 19
Dependent Claim
15 words
A method of imaging in accordance with claim 12 wherein a color dye is selected.
Claim 20
Dependent Claim
24 words
A method of imaging in accordance with claim 17 wherein the color dye is selected from the group consisting of red, blue and yellow.
Claim 21
Dependent Claim
29 words
A method of imaging in accordance with claim 12 wherein the ink further includes therein a compound selected from the group consisting of benzyl alcohol, N-n-butyldiethanolamine, 2-(2-butoxyethoxy)-ethanol, and 1-methyl-2-pyrrolidinone.
Claim 22
Dependent Claim
28 words
A composition in accordance with claim 1 wherein the water is present in an amount of from about 70 percent by weight to about 90 percent by weight.
Claim 23
Dependent Claim
41 words
An ink jet composition consisting essentially of a major amount of water, a hydroxyethylated polyethylenimine polymer, and a dye component wherein the polymer has incorporated therein from about 65 percent by weight to about 80 percent by weight of hydroxyethyl groups.
Claim 24
Dependent Claim
41 words
An ink jet composition consisting essentially of a major amount of water, a hydroxyethylated polyethylenimine polymer, and a dye component wherein the polymer has incorporated therein from about 65 percent by weight to about 80 percent by weight of hydroxyethyl groups.
Claim 25
Dependent Claim
72 words
A composition in accordance with claim 21 wherein the water is present in an amount of from about 70 percent by weight to about 90 percent by weight, the dye component is present in an amount of from about 1 percent by weight to about 10 percent by weight, and the hydroxyethylated polyethylenimine polymer is present in an amount of from about 2 percent by weight to about 5 percent by weight.
Claim 26
Dependent Claim
23 words
A composition in accordance with claim 1 wherein the dye is selected from the group consisting of cyan, magenta, yellow and mixtures thereof.
Claim 27
Dependent Claim
23 words
A composition in accordance with claim 21 wherein the dye is selected from the group consisting of cyan, magenta, yellow and mixtures thereof.
Claim 28
Dependent Claim
43 words
A composition in accordance with claim 1 with a surface tension of from about 30 dynes/cm 2 to about 60 dynes/cm 2 , a viscosity of from about 1.5 to about 3.0, and a waterfastness of from about 80 to about 95 percent.
Claim 29
Dependent Claim
42 words
A composition in accordance with claim 21 with a surface tension of from about 30 dynes/cm 2 to about 60 dynes/cm 2 , viscosity of from about 1.5 to about 3.0, and a waterfastness of from about 80 to about 95 percent.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-04-20 | 1990-10-20 | 1991-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-20 | 1994-10-20 | 1995-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-20 | 1998-10-20 | 1999-04-21 | $7700.00 | Window Closed / Lapsed |