US5429671A
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US
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Ink, and ink-jet recording method and apparatus employing the ink
Assignee: Canon Inc
•
Filing: 1994-03-08
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Granted: 1995-07-04
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Expires: 2014-03-08
Abstract
Abstract Provided is an ink comprising at least a dye and a liquid medium, the dye being represented by the general formula <IMAGE> (I) wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula -SO2C6H5 or -SO2C6H4-CH3, and M is an alkali metal or ammonium.
Inventors
- 👤 Takao Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:26
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
68 words
An ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR6## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 2
Dependent Claim
68 words
An ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR6## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 3
Dependent Claim
46 words
The ink according to claim 1, wherein the ink comprises the dye of the general formula (I) in an amount of from 0.5 to 10% by weight and a polyhydric alcohol or a polyhydric alcohol ether in an amount of from 2 to 80% by weight.
Claim 4
Dependent Claim
66 words
The ink according to claim 1, wherein the ink comprises the dye of the general formula (I) in an amount of from 0.5 to 10% by weight, a polyhydric alcohol or a polyhydric alcohol ether in an amount of from 2 to 80% by weight and water in an amount of from 10 to 97.5% by weight, and have a pH-value of from 3 to 10.5.
Claim 5
Dependent Claim
91 words
An ink-jet recording method in which droplets of an ink are ejected through an orifice in correspondence with recording signals to conduct recording, said ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR7## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 6
Dependent Claim
91 words
An ink-jet recording method in which droplets of an ink are ejected through an orifice in correspondence with recording signals to conduct recording, said ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR7## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 7
Dependent Claim
23 words
The ink-jet recording method according to claim 4, wherein the droplets of the ink is ejected by applying thermal energy to the ink.
Claim 8
Dependent Claim
19 words
The ink jet recording method according to claim 5, wherein said droplets of ink are ejected on coated paper.
Claim 9
Dependent Claim
90 words
A recording unit having an ink container for holding ink, and a head to eject the ink in a form of droplets, said ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR8## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 10
Dependent Claim
90 words
A recording unit having an ink container for holding ink, and a head to eject the ink in a form of droplets, said ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR8## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 11
Dependent Claim
23 words
The recording unit according to claim 7, wherein the head ejects the droplets of the ink by applying thermal energy to the ink.
Claim 12
Dependent Claim
79 words
An ink cartridge having an ink container for holding an ink, said ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR9## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 13
Dependent Claim
79 words
An ink cartridge having an ink container for holding an ink, said ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR9## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 14
Dependent Claim
18 words
The ink cartridge according to claim 9, wherein the ink container has a liquid-contacting face formed from polyolefin.
Claim 15
Dependent Claim
96 words
An ink-jet recording apparatus equipped with a recording unit having an ink container for holding ink, and a head to eject the ink in a form of droplets, said ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR10## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 16
Dependent Claim
96 words
An ink-jet recording apparatus equipped with a recording unit having an ink container for holding ink, and a head to eject the ink in a form of droplets, said ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR10## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 17
Dependent Claim
24 words
The ink-jet recording apparatus according to claim 11, wherein the head ejects the droplets of the ink by applying thermal energy to the ink.
Claim 18
Dependent Claim
112 words
An ink-jet recording apparatus equipped with a recording head for ejecting droplets of an ink, an ink cartridge having an ink container for holding the ink, and an ink delivery device for delivering the ink from the ink cartridge to the recording head, said ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR11## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 , or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 19
Dependent Claim
112 words
An ink-jet recording apparatus equipped with a recording head for ejecting droplets of an ink, an ink cartridge having an ink container for holding the ink, and an ink delivery device for delivering the ink from the ink cartridge to the recording head, said ink comprising at least a dye and a liquid medium, the dye being represented by the general formula ##STR11## wherein Y is a linear or branched alkyl group having 5 to 12 carbons; Z is a benzoyl group, a radical of the formula --SO 2 C 6 H 5 , or --SO 2 C 6 H 4 --CH 3 ; and M is an alkali metal or ammonium.
Claim 20
Dependent Claim
24 words
The ink-jet recording apparatus according to claim 13, wherein the head ejects the droplets of the ink by applying thermal energy to the ink.
Claim 21
Dependent Claim
19 words
The ink-jet recording apparatus according to claim 14, wherein the ink container has a liquid-contacting face formed from polyolefin.
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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) | 1998-07-03 | 1999-01-02 | 1999-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-03 | 2003-01-02 | 2003-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-03 | 2007-01-02 | 2007-07-04 | $7700.00 | Window Closed / Lapsed |