US5690722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of tetrafluoropropanol as co-solvent in ink-jet ink vehicles
Assignee: HP Inc
•
Filing: 1996-10-28
•
Granted: 1997-11-25
•
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 04:10
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 %.
References Cited (Backward Citations)
US5091005A
Cited
US5116409A
Cited
US5106416A
Cited
US5181045A
Cited
US5320668A
Cited
US5462592A
Cited
US5198023A
Cited
US5342440A
Cited
US5342439A
Cited
US5531817A
Cited
US5476540A
Cited
US5536306A
Cited
US5626655A
Cited
US5565022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 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 |
| 11.5 Years (Year 12) | 2008-11-24 | 2009-05-26 | 2009-11-25 | $7700.00 | Window Closed / Lapsed |