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US5213613A
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Ink, and ink-jet recording method and instrument using the same
Assignee: Canon Inc
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Filing: 1992-09-23
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Granted: 1993-05-25
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Expires: 2012-09-23
Abstract
Abstract Disclosed herein is an ink comprising a recording agent and a liquid medium dissolving or dispersing the recording agent therein, wherein the ink contains an imide compound and at least one compound selected from the group consisting of urea, thiourea and derivatives thereof, and volatile alkaline compounds.
Inventors
- 👤 Akira Nagashima
- 👤 Shinichi Tochihara
- 👤 Osamu Nishiwaki
- 👤 Kumiko Mafune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:27
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/38; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
68 words
An ink comprising a recording agent and a liquid medium dissolving or dispersing the recording agent therein, wherein the ink contains an imide compound and at least one compound selected from the group consisting of urea, thiourea and derivatives thereof, and volatile alkaline compounds, and wherein the proportion of the imide compound and volatile alkaline compound to be contained in the ink is 1:1 to 8:1 by weight
Claim 2
Dependent Claim
68 words
An ink comprising a recording agent and a liquid medium dissolving or dispersing the recording agent therein, wherein the ink contains an imide compound and at least one compound selected from the group consisting of urea, thiourea and derivatives thereof, and volatile alkaline compounds, and wherein the proportion of the imide compound and volatile alkaline compound to be contained in the ink is 1:1 to 8:1 by weight
Claim 3
Dependent Claim
26 words
The ink according to claim 1, wherein the imide compound is at least one selected from the group consisting of succinimide, glutarimide, maleimide, diglycolimide and glutazine.
Claim 4
Dependent Claim
29 words
The ink according to claim 1, wherein the volatile alkaline compound is at least one selected from the group consisting of ammonia, monomethylamine, diethylamine, triethylamine, monoethylamine, dimethylamine and trimethylamine.
Claim 5
Dependent Claim
39 words
The ink according to claim 1, wherein the proportion of the imide compound and compound selected from the group consisting of urea, thiourea and the derivatives thereof to be contained in the ink is 1:3 to 10:1 by weight.
Claim 6
Dependent Claim
41 words
The ink according to claim 1, wherein the compound selected from the group consisting of urea, thiourea and the derivatives thereof is contained in a proportion of from 0.1% to 20.0% by weight based o the total weight of the ink.
Claim 7
Dependent Claim
31 words
The ink according to claim 1, wherein the volatile alkaline compound is contained in a proportion of from 0.1% to 20.0% by weight based on the total weight of the ink.
Claim 8
Dependent Claim
95 words
An ink-jet recording method comprising ejecting droplets of an ink out of an orifice in accordance with a recording signal to make a record on a recording material, wherein the ink comprises a recording agent and a liquid medium dissolving or dispersing the recording agent therein, and contains an imide compound and at least one compound selected from the group consisting of urea, thiourea and derivatives thereof, and volatile alkaline compounds, and wherein the proportion of the imide compound and volatile alkaline compound to be contained in the ink is 1:1 to 8:1 by weight.
Claim 9
Dependent Claim
95 words
An ink-jet recording method comprising ejecting droplets of an ink out of an orifice in accordance with a recording signal to make a record on a recording material, wherein the ink comprises a recording agent and a liquid medium dissolving or dispersing the recording agent therein, and contains an imide compound and at least one compound selected from the group consisting of urea, thiourea and derivatives thereof, and volatile alkaline compounds, and wherein the proportion of the imide compound and volatile alkaline compound to be contained in the ink is 1:1 to 8:1 by weight.
Claim 10
Dependent Claim
41 words
The ink-jet recording method according to claim 7, wherein the proportion of the imide compound and compound selected from the group consisting of urea, thiourea and the derivatives thereof to be contained in the ink is 1:3 to 10:1 by weight.
Claim 11
Dependent Claim
15 words
The ink-jet recording method according to claim 7, wherein the recording material is woodfree paper.
Claim 12
Dependent Claim
21 words
The ink-jet recording method according to claim 7, wherein the ink droplets are ejected by applying thermal energy to the ink.
Claim 13
Dependent Claim
40 words
A recording unit comprising an ink container portion with an ink held therein and a head from which the ink is ejected in the form of ink droplets, wherein said ink is the ink as set forth in claim 1.
Claim 14
Dependent Claim
26 words
The recording unit according to claim 11, wherein the head is a head which causes thermal energy to act on the ink to eject its droplets.
Claim 15
Dependent Claim
20 words
The recording unit according to claim 11, wherein the ink container portion is formed of polyurethane, cellulose or polyvinyl acetate.
Claim 16
Dependent Claim
25 words
An ink cartridge comprising an ink container portion with an ink held therein, wherein said ink is the ink as set forth in claim 1.
Claim 17
Dependent Claim
27 words
The ink cartridge according to claim 14, wherein the ink container portion is made of a polyolefin at its surface with which the ink comes into contact.
Claim 18
Dependent Claim
45 words
An ink-jet recording apparatus comprising a recording unit having an ink container portion with an ink held therein and a head from which the ink is ejected in the form of ink droplets, wherein said ink is the ink as set forth in claim 1.
Claim 19
Dependent Claim
27 words
The ink-jet recording apparatus according to claim 16, wherein the head is a head which causes thermal energy to act on the ink to eject its droplets.
Claim 20
Dependent Claim
21 words
The ink-jet recording apparatus according to claim 16, wherein the ink container portion is formed of polyurethane, cellulose or polyvinyl acetate.
Claim 21
Dependent Claim
60 words
An ink-jet recording apparatus comprising a head from which the ink is ejected in the form of ink droplets, an ink cartridge having an ink container portion with an ink held therein, and an ink feeder for feeding the ink from the ink cartridge to the recording head, wherein said ink is the ink as set forth in claim 1.
Claim 22
Dependent Claim
27 words
The ink-jet recording apparatus according to claim 19, wherein the head is a head which causes thermal energy to act on the ink to eject its droplets.
Claim 23
Dependent Claim
28 words
The ink-jet recording apparatus according to claim 19, wherein the ink container portion is made of a polyolefin at its surface with which the ink comes into contact.
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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) | 1996-05-24 | 1996-11-23 | 1997-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-24 | 2000-11-23 | 2001-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-24 | 2004-11-23 | 2005-05-25 | $7700.00 | Window Closed / Lapsed |