Patent US2112697A successfully refreshed from Google Patents.
Patent US5651813A successfully refreshed from Google Patents.
US5651813A
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US
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Preparation of ink jet inks with sodium N-methyl-N-oleoyl taurate
Assignee: Eastman Kodak Co
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Filing: 1995-11-30
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Granted: 1997-07-29
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Expires: 2015-11-30
Abstract
Abstract A process for making ink jet inks, comprising the steps of: (A) providing a dispersion containing a pigment, a carrier for the pigment and as a dispersant sodium N-methyl-N-oleoyl taurate; (B) mixing the pigment dispersion with rigid milling media; (C) introducing the mixture of step (B) into mill; (D) milling the mixture from step (C) until the pigment particle size less than 1.5 mu m; (E) separating the milling media from the mixture milled in step (D); and (F) diluting the mixture from step (E) to obtain an ink jet ink having a pigment concentration suitable for ink jet printers.
Inventors
- 👤 Domenic Santilli
- 👤 Douglas Eugene Bugner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:27
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/324; C09D11/326
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
An ink jet printing method, comprising the steps of: providing an ink jet printer that is responsive to digital data signals; loading the printer with ink receptive substrates; loading the printer with an aqueous ink jet ink, said ink A) comprising a pigment, an aqueous carrier and sodium N-methyl-N-oleoyl taurate; and B) having a surface tension of 20 to 60 dynes/cm at 25° C., a viscosity of 1 to 5 centipose at 25° C. and a particle size of less than 1.5 μm; and printing on an ink receptive element in response to the digital data signals.
Claim 2
Dependent Claim
97 words
An ink jet printing method, comprising the steps of: providing an ink jet printer that is responsive to digital data signals; loading the printer with ink receptive substrates; loading the printer with an aqueous ink jet ink, said ink A) comprising a pigment, an aqueous carrier and sodium N-methyl-N-oleoyl taurate; and B) having a surface tension of 20 to 60 dynes/cm at 25° C., a viscosity of 1 to 5 centipose at 25° C. and a particle size of less than 1.5 μm; and printing on an ink receptive element in response to the digital data signals.
Claim 3
Dependent Claim
29 words
The ink jet ink printing method of claim 1 comprising from 0.1 to 10.0 weight percent of an organic pigment and from 0.05 to10.0 weight percent sodium N-methyl-N-oleoyl taurate.
Claim 4
Dependent Claim
35 words
The ink jet ink printing method of claim 1 wherein the pigment is selected from pigment black 7, pigment red 122,pigment blue 15, pigment yellow 139 and mixtures of two or more of such pigments.
Claim 5
Dependent Claim
14 words
The ink jet ink printing method of claim 1 wherein the pigment is organic.
Claim 6
Dependent Claim
58 words
The ink jet ink printing method of claim 1 wherein the ink further comprises a cosolvent selected from the group consisting of methyl alcohol, ethyl alcohol, n-propyl alcohol, iso-propyl alcohol, n-butyl alcohol, iso-butyl alcohol, sec-butyl alcohol, ethylene glycol, diethylene glycol, propylene gylcol, dipropylene glycol, 1,5-pentanediol, thiodiglycol, 2-ethyl-2-hydroxymethylpropane-1,3-diol, 2-pyrrolidone, N-methyl-2-pyrrolidone and mixtures of two or more of such solvents.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-07-28 | 2001-01-27 | 2001-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-28 | 2005-01-27 | 2005-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-28 | 2009-01-27 | 2009-07-29 | $7700.00 | Window Closed / Lapsed |