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US5690722A
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Use of tetrafluoropropanol as co-solvent in ink-jet ink vehicles
Assignee: HP Inc
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Filing: 1996-10-28
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Granted: 1997-11-25
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Expires: 2016-10-28
Abstract
Abstract An ink-jet ink composition and a method for printing are provided which involve the use of tetrafluoropropanol (TFP), and preferably 2,2,3,3-TFP, as a co-solvent to impart improved bleed control, dot gain, and edge acuity characteristics to the ink as well as to reduce the dry time upon printing onto a print medium. Preferably, the ink-jet ink composition comprises a dye, 2,2,3,3-TFP, 2-ethyl-2-hydroxymethyl-1,3-propanediol, sodium alginate, and water. In an ink-jet ink set in which the color inks are dye-based ink-jet inks compositions formulated to include 2,2,3,3-TFP in accordance with the invention, but when the black ink is a pigment-based suspension without 2,2,3,3-TFP, black to color bleed may be controlled by further adding any one of calcium nitrate, magnesium nitrate, tetraethylenepentamine, or polyethylenimine to the color dye-based inks.
Inventors
- 👤 Norman E. Pawlowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:53
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
19 words
An ink-jet ink composition for ink-jet printing comprising at least one colorant and a vehicle, said vehicle including tetrafluoropropanol.
Claim 2
Dependent Claim
19 words
An ink-jet ink composition for ink-jet printing comprising at least one colorant and a vehicle, said vehicle including tetrafluoropropanol.
Claim 3
Dependent Claim
12 words
The ink-jet ink composition of claim 1 wherein said tetrafluoropropanol is 2,2,3,3-tetrafluoropropanol.
Claim 4
Dependent Claim
27 words
The ink-jet ink composition of claim 1 wherein said tetrafluoropropanol is present in said ink-jet ink composition within the range of about 5 to 50 wt %.
Claim 5
Dependent Claim
27 words
The ink-jet ink composition of claim 3 wherein said tetrafluoropropanol is present in said ink-jet ink composition within the range of about 10 to 30 wt %.
Claim 6
Dependent Claim
25 words
The ink-jet ink composition of claim 4 wherein said tetrafluoropropanol is present in said ink-jet ink composition at a concentration of about 20 wt %.
Claim 7
Dependent Claim
13 words
The ink-jet ink composition of claim 1 wherein said colorant is a dye.
Claim 8
Dependent Claim
52 words
The ink-jet ink composition of claim 1 wherein said vehicle also contains at least one humectant selected from the group consisting of polyols and glycol ethers and, optionally, at least one co-solvent selected from the group consisting of glycol esters, long chain alcohols, esters, ketones, lactones, lactams, and glycerols, and their derivatives.
Claim 9
Dependent Claim
32 words
The ink-jet ink composition of claim 7 wherein said humectant consists essentially of 2-ethyl-2-hydroxymethyl-1,3-propanediol at a concentration within the range of about 5 to 30 wt % of said ink-jet ink composition.
Claim 10
Dependent Claim
29 words
The ink-jet ink composition of claim 8 wherein said 2-ethyl-2-hydroxymethyl-1,3-propanediol is present in said ink-jet composition at a concentration within the range of about 5 to 15 wt %.
Claim 11
Dependent Claim
33 words
The ink-jet ink composition of claim 1 wherein said vehicle also contains a sodium alginate at a concentration in the range of about 0.1 to 0.2 wt % of said ink-jet ink composition.
Claim 12
Dependent Claim
25 words
The ink-jet ink composition of claim 10 wherein said sodium alginate is present in said ink-jet composition at a concentration of about 0.15 wt %.
Claim 13
Dependent Claim
50 words
The ink-jet ink composition of claim 1 wherein said ink-jet ink composition also contains a bleed control agent selected from the group consisting of calcium nitrate, magnesium nitrate, tetraethylenepentamine, and polyethylenimine, said bleed control agent serving to control bleed between said ink-jet ink composition and a second pigment-based ink-jet ink.
Claim 14
Dependent Claim
49 words
An ink-jet ink composition for ink-jet printing comprising: (a) about 0.1 to 6 wt % of a dye; (b) about 10 to 30 wt % 2,2,3,3-tetrafluoropropanol; (c) about 5 to 15 wt % 2-ethyl-2-hydroxymethyl-1,3-propanediol; (d) about 0. 1 to 0.2 wt % sodium alginate; and (e) the balance water.
Claim 15
Dependent Claim
49 words
An ink-jet ink composition for ink-jet printing comprising: (a) about 0.1 to 6 wt % of a dye; (b) about 10 to 30 wt % 2,2,3,3-tetrafluoropropanol; (c) about 5 to 15 wt % 2-ethyl-2-hydroxymethyl-1,3-propanediol; (d) about 0. 1 to 0.2 wt % sodium alginate; and (e) the balance water.
Claim 16
Dependent Claim
42 words
The ink-jet ink composition of claim 13 comprising: (a) about 0.1 to 6 wt % of a dye; (b) about 20 wt % 2,2,3,3-tetrafluoropropanol; (c) about 15 wt % 2-ethyl-2-hydroxymethyl-1,3-propanediol; (d) about 0.15 wt % sodium alginate, and (e) the balance water.
Claim 17
Independent Claim
48 words
A method of increasing bleed control between adjacent colors, dot gain, edge acuity, and decreasing dry time of an ink-jet ink for ink-jet printing, said ink-jet ink comprising at least one colorant and a vehicle, said method comprising incorporating tetrafluoropropanol into said vehicle to form an improved vehicle.
Claim 18
Independent Claim
48 words
A method of increasing bleed control between adjacent colors, dot gain, edge acuity, and decreasing dry time of an ink-jet ink for ink-jet printing, said ink-jet ink comprising at least one colorant and a vehicle, said method comprising incorporating tetrafluoropropanol into said vehicle to form an improved vehicle.
Claim 19
Dependent Claim
10 words
The method of claim 15 wherein said tetrafluoropropanol is 2,2,3,3-tetrafluoropropanol.
Claim 20
Dependent Claim
24 words
The method of claim 15 wherein said tetrafluoropropanol is present in said ink-jet ink within the range of about 5 to 50 wt %.
Claim 21
Dependent Claim
24 words
The method of claim 17 wherein said tetrafluoropropanol is present in said ink-jet ink within the range of about 10 to 30 wt %.
Claim 22
Independent Claim
61 words
A method of printing an ink-jet ink on a medium, said ink-jet ink comprising at least one colorant and a vehicle, said method comprising (a) providing tetrafluoropropanol in said vehicle and (b) printing said ink-jet ink onto said medium, thereby increasing bleed control between adjacent colors, dot gain, edge acuity, and decreasing dry time of said ink-jet ink for ink-jet printing.
Claim 23
Independent Claim
61 words
A method of printing an ink-jet ink on a medium, said ink-jet ink comprising at least one colorant and a vehicle, said method comprising (a) providing tetrafluoropropanol in said vehicle and (b) printing said ink-jet ink onto said medium, thereby increasing bleed control between adjacent colors, dot gain, edge acuity, and decreasing dry time of said ink-jet ink for ink-jet printing.
Claim 24
Dependent Claim
10 words
The method of claim 19 wherein said tetrafluoropropanol is 2,2,3,3-tetrafluoropropanol.
Claim 25
Dependent Claim
24 words
The method of claim 19 wherein said tetrafluoropropanol is present in said ink-jet ink within the range of about 5 to 50 wt %.
Claim 26
Dependent Claim
24 words
The method of claim 21 wherein said tetrafluoropropanol is present in said ink-jet ink within the range of about 10 to 30 wt %.
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| 3.5 Years (Year 4) | 2000-11-24 | 2001-05-26 | 2001-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-24 | 2005-05-26 | 2005-11-25 | $3760.00 | Window Closed / Lapsed |
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