US6322209B1
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US
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Ink, ink jet recording method and apparatus using same ink
Assignee: Canon Inc
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Filing: 1996-11-08
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Granted: 2001-11-27
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Expires: 2016-11-08
Abstract
Abstract In an ink-jet recording method employing ink that includes an aliphatic or an alicyclic monohydric alcohol having a vapor pressure of 4 mmHg or less at 20 to 25° C., in which ink droplets are discharged by applying thermal energy onto the ink, and the amount of ink discharged, corresponding to one pulse of energy, is 5 to 20 pl/dot. A recording unit, and ink-jet recording apparatus employing the ink are also included.
Inventors
- 👤 Shinichi Sato
- 👤 Yutaka Kurabayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:24
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/36
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
112 words
A method for stabilizing discharge of dye-based aqueous ink in ink jet recording, comprising the steps of: selecting an ink comprising a dye, water, and an aliphatic or an alicyclic monohydric alcohol for releasing association of water molecules contained in the ink, the aliphatic or alicyclic monohydric alchohol being selected from the group consisting of 1-hexanol, cyclohexanol, and heptanols, and having a vapor pressure of 4 mmHg or less at 25° C.; and discharging the ink in an amount, corresponding to a single pulse of energy, from 5 to 20 pl/dot, said discharge being stabilized by the aliphatic or alicyclic monohydric alcohol releasing the association of water molecules contained in said ink.
Claim 2
Independent Claim
112 words
A method for stabilizing discharge of dye-based aqueous ink in ink jet recording, comprising the steps of: selecting an ink comprising a dye, water, and an aliphatic or an alicyclic monohydric alcohol for releasing association of water molecules contained in the ink, the aliphatic or alicyclic monohydric alchohol being selected from the group consisting of 1-hexanol, cyclohexanol, and heptanols, and having a vapor pressure of 4 mmHg or less at 25° C.; and discharging the ink in an amount, corresponding to a single pulse of energy, from 5 to 20 pl/dot, said discharge being stabilized by the aliphatic or alicyclic monohydric alcohol releasing the association of water molecules contained in said ink.
Claim 3
Dependent Claim
46 words
A method for stabilizing discharge of ink in ink jet recording according to claim 1 , wherein, in said selecting step, the ink contains the monohydric alcohol in an amount ranging from 0.1 to 15 wt. % with respect to a total weight of the ink.
Claim 4
Dependent Claim
34 words
A method for stabilizing discharge of ink in ink jet recording according to claim 1 , wherein, in said selecting step, the ink further contains alkali-soluble resin having molecular weight of 3,000 to 20,000.
Claim 5
Dependent Claim
41 words
A method for stabilizing discharge of ink in ink jet recording according to claim 3 , wherein the alkali-soluble resin is contained in an amount ranging from 0.3 to 5 wt. % with respect to a total weight of the ink.
Claim 6
Dependent Claim
21 words
A method for stabilizing discharge of ink in ink jet recording according to claim 1 , wherein said alcohol is 1-hexanol.
Claim 7
Dependent Claim
20 words
A method according to claim 1 , wherein said discharge has a driving frequency set at 6 kHz or more.
Claim 8
Dependent Claim
76 words
A recording unit, comprising: an ink housing section that holds an ink comprising a dye, and an aliphatic or an alicyclic monohydric alcohol selected from the group consisting of 1-hexanol, cyclohexanol and heptanols, and having a vapor pressure of 4 mmHg or less at 25° C.; and a head section for discharging an amount of said ink as ink droplets by applying thermal energy, wherein the amount of ink discharged is from 5 to 20 pl/dot.
Claim 9
Dependent Claim
76 words
A recording unit, comprising: an ink housing section that holds an ink comprising a dye, and an aliphatic or an alicyclic monohydric alcohol selected from the group consisting of 1-hexanol, cyclohexanol and heptanols, and having a vapor pressure of 4 mmHg or less at 25° C.; and a head section for discharging an amount of said ink as ink droplets by applying thermal energy, wherein the amount of ink discharged is from 5 to 20 pl/dot.
Claim 10
Dependent Claim
13 words
A recording unit according to claim 7 , wherein said alcohol is 1-hexanol.
Claim 11
Dependent Claim
82 words
An ink jet recording apparatus, comprising: an ink housing section that holds an ink comprising a dye, and an aliphatic or an alicyclic monohydric alcohol selected from the group consisting of 1-hexanol, cyclohexanol, and heptanols, and having a vapor pressure of 4 mmHg or less at 25° C.; and a recording unit having a head section for discharging an amount of said ink as ink droplets by applying thermal energy, wherein the amount of ink discharged is from 5 to 20 pl/dot.
Claim 12
Dependent Claim
82 words
An ink jet recording apparatus, comprising: an ink housing section that holds an ink comprising a dye, and an aliphatic or an alicyclic monohydric alcohol selected from the group consisting of 1-hexanol, cyclohexanol, and heptanols, and having a vapor pressure of 4 mmHg or less at 25° C.; and a recording unit having a head section for discharging an amount of said ink as ink droplets by applying thermal energy, wherein the amount of ink discharged is from 5 to 20 pl/dot.
Claim 13
Dependent Claim
15 words
An ink jet recording apparatus according to claim 9 , wherein said alcohol is 1-hexanol.
Claim 14
Dependent Claim
82 words
An ink jet recording apparatus, comprising: an ink housing section that holds an ink comprising a dye, and an aliphatic or an alicyclic monohydric alcohol selected from the group consisting of 1-hexanol, cyclohexanol, and heptanols, and having a vapor pressure of 4 mmHg or less at 25° C.; and a recording head having a head section for discharging an amount of said ink as ink droplets by applying thermal energy, wherein the amount of ink discharged is from 5 to 20 pl/dot.
Claim 15
Dependent Claim
82 words
An ink jet recording apparatus, comprising: an ink housing section that holds an ink comprising a dye, and an aliphatic or an alicyclic monohydric alcohol selected from the group consisting of 1-hexanol, cyclohexanol, and heptanols, and having a vapor pressure of 4 mmHg or less at 25° C.; and a recording head having a head section for discharging an amount of said ink as ink droplets by applying thermal energy, wherein the amount of ink discharged is from 5 to 20 pl/dot.
Claim 16
Dependent Claim
28 words
An ink jet recording apparatus according to claim 11 , further comprising an ink supply section for supplying ink housed in an ink cartridge to said recording head.
Claim 17
Dependent Claim
15 words
An ink jet recording apparatus according to claim 11 , wherein said alcohol is 1-hexanol.
Claim 18
Dependent Claim
98 words
A recording unit comprising: an ink housing section that holds an ink comprising a dye, and an alicyclic or an aliphatic monohydric alcohol having a vapor pressure of 4 mmHg or less at 25° C., said monohydric alcohol being provided in an amount ranging from 0.1 to 15 wt. % with respect to a total weight of the ink, and being selected from the group consisting of 1-hexanol, cyclohexanol and heptanols; and a head section for discharging said ink as ink droplets by applying thermal energy, wherein the amount of ink discharged is from 5 to 20 pl/dot.
Claim 19
Dependent Claim
98 words
A recording unit comprising: an ink housing section that holds an ink comprising a dye, and an alicyclic or an aliphatic monohydric alcohol having a vapor pressure of 4 mmHg or less at 25° C., said monohydric alcohol being provided in an amount ranging from 0.1 to 15 wt. % with respect to a total weight of the ink, and being selected from the group consisting of 1-hexanol, cyclohexanol and heptanols; and a head section for discharging said ink as ink droplets by applying thermal energy, wherein the amount of ink discharged is from 5 to 20 pl/dot.
Claim 20
Dependent Claim
103 words
An ink jet recording apparatus comprising: an ink housing section that holds an ink comprising a dye, and an alicyclic or an aliphatic monohydric alcohol having a vapor pressure of 4 mmHg or less at 25° C., said monohydric alcohol being provided in an amount ranging from 0.1 to 15 wt. % with respect to a total weight of the ink, and being selected from the group consisting of 1-hexanol, cyclohexanol and heptanols; and a recording unit having a head section for discharging said ink as ink droplets by applying thermal energy, wherein the amount of ink discharged is 5 to 20 pl/dot.
Claim 21
Dependent Claim
103 words
An ink jet recording apparatus comprising: an ink housing section that holds an ink comprising a dye, and an alicyclic or an aliphatic monohydric alcohol having a vapor pressure of 4 mmHg or less at 25° C., said monohydric alcohol being provided in an amount ranging from 0.1 to 15 wt. % with respect to a total weight of the ink, and being selected from the group consisting of 1-hexanol, cyclohexanol and heptanols; and a recording unit having a head section for discharging said ink as ink droplets by applying thermal energy, wherein the amount of ink discharged is 5 to 20 pl/dot.
Claim 22
Dependent Claim
91 words
An ink-jet recording apparatus comprising: an ink housing section that holds an ink comprising a dye, and an alicyclic or an aliphatic monohydric alcohol having a vapor pressure of 4 mmHg or less at 25° C., said monohydric alcohol being provided in an amount ranging from 0.1 to 15 wt. % with respect to a total weight of the ink, and being selected from the group consisting of 1-hexanol, cyclohexanol and heptanols; and a recording head having a head section for discharging said ink as ink droplets by applying thermal energy.
Claim 23
Dependent Claim
91 words
An ink-jet recording apparatus comprising: an ink housing section that holds an ink comprising a dye, and an alicyclic or an aliphatic monohydric alcohol having a vapor pressure of 4 mmHg or less at 25° C., said monohydric alcohol being provided in an amount ranging from 0.1 to 15 wt. % with respect to a total weight of the ink, and being selected from the group consisting of 1-hexanol, cyclohexanol and heptanols; and a recording head having a head section for discharging said ink as ink droplets by applying thermal energy.
Claim 24
Dependent Claim
27 words
An ink-jet recording apparatus according to claim 16 , further comprising an ink supply section for supplying ink housed in an ink cartridge to said recording head.
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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) | 2004-11-26 | 2005-05-28 | 2005-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-11-26 | 2009-05-28 | 2009-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-11-26 | 2013-05-28 | 2013-11-27 | $7700.00 | Window Closed / Lapsed |