US5656072A
Expired / Lapsed
US
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Ink composition process for its preparation and ink-jet recording process
Assignee: Brother Industries Ltd
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Filing: 1996-07-10
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Granted: 1997-08-12
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Expires: 2016-07-10
Abstract
Abstract An ink composition comprising a dye or pigment, dissolved or dispersed in an aqueous medium, and having acetates in a content less than 90 ppm or formates in a content less than 6 ppm.
Inventors
- 👤 Masahito Kato
- 👤 Hideto Yamazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:10
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
43 words
An ink composition comprising a dye or a pigment, dissolved or dispersed in an aqueous medium; said ink composition having at least one of i) acetates in a content less than 90 ppm and ii) formates in a content less than 6 ppm.
Claim 2
Dependent Claim
43 words
An ink composition comprising a dye or a pigment, dissolved or dispersed in an aqueous medium; said ink composition having at least one of i) acetates in a content less than 90 ppm and ii) formates in a content less than 6 ppm.
Claim 3
Dependent Claim
35 words
The ink composition according to claim 1, wherein said dye or pigment is contained in an amount of from 0.1% by weight to 20% by weight based on the total weight of the ink composition.
Claim 4
Dependent Claim
22 words
The ink composition according to claim 1, wherein said aqueous medium is a mixed solvent of water and a water-soluble organic solvent.
Claim 5
Dependent Claim
13 words
The ink composition according to claim 3, wherein said water is deionized water.
Claim 6
Dependent Claim
29 words
The ink composition according to claim 1, wherein said ink composition has acetates in a content less than 90 ppm and formates in a content less than 6 ppm.
Claim 7
Dependent Claim
35 words
The ink composition according to claim 5, wherein said dye or pigment is contained in an amount of from 0.1% by weight to 20% by weight based on the total weight of the ink composition.
Claim 8
Dependent Claim
22 words
The ink composition according to claim 5, wherein said aqueous medium is a mixed solvent of water and a water-soluble organic solvent.
Claim 9
Dependent Claim
13 words
The ink composition according to claim 7, wherein said water is deionized water.
Claim 10
Dependent Claim
70 words
A process for preparing an ink composition comprising a dye or a pigment, dissolved or dispersed in an aqueous medium; said process comprising the steps of; dissolving or dispersing the dye or pigment in the aqueous medium; and subjecting the resulting solution or dispersion to anion exchange so that the ink composition has acetates in a content less than 90 ppm or formates in a content less than 6 ppm.
Claim 11
Dependent Claim
70 words
A process for preparing an ink composition comprising a dye or a pigment, dissolved or dispersed in an aqueous medium; said process comprising the steps of; dissolving or dispersing the dye or pigment in the aqueous medium; and subjecting the resulting solution or dispersion to anion exchange so that the ink composition has acetates in a content less than 90 ppm or formates in a content less than 6 ppm.
Claim 12
Dependent Claim
61 words
An ink-jet recording process comprising jetting an ink composition to a recording medium in the form of droplets to make a record; said ink composition comprising a dye or a pigment, dissolved or dispersed in an aqueous medium, and having been controlled to have acetates in a content less than 90 ppm or formates in a content less than 6 ppm.
Claim 13
Dependent Claim
61 words
An ink-jet recording process comprising jetting an ink composition to a recording medium in the form of droplets to make a record; said ink composition comprising a dye or a pigment, dissolved or dispersed in an aqueous medium, and having been controlled to have acetates in a content less than 90 ppm or formates in a content less than 6 ppm.
Claim 14
Dependent Claim
27 words
The ink-jet recording process according to claim 10, wherein said ink composition is jetted in the form of droplets by utilizing the vibration of a piezoelectric device.
Claim 15
Dependent Claim
25 words
The ink-jet recording process according to claim 10, wherein said ink composition is jetted in the form of droplets by the action of heat energy.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-08-11 | 2001-02-10 | 2001-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-11 | 2005-02-10 | 2005-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-11 | 2009-02-10 | 2009-08-12 | $7700.00 | Window Closed / Lapsed |