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US5658376A
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Water-based dispersion ink for bubble jet printing and ink-jet recording method and apparatus using same
Assignee: Canon Inc
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Filing: 1995-11-16
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Granted: 1997-08-19
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Expires: 2015-11-16
Abstract
Abstract The invention provides a water-based dispersion ink for bubble jet system which contains at least water, a water-soluble organic solvent, a disperse dye or pigment, a surfactant, and/or an alkali-soluble, water-soluble polymer having a carboxylic acid value, wherein the surfactant is a polyoxyethylene alkyl ether or a polyoxyethylene alkylphenyl ether having an anionic group, selected from phosphoric acid and carboxylic acid, at the ethylene oxide terminal and also having HLB equal to or more than 10.
Inventors
- 👤 Hiromichi Noguchi
- 👤 Masahiro Haruta
- 👤 Shoji Koike
- 👤 Koromo Shirota
- 👤 Aya Yoshihira
- 👤 Tomoya Yamamoto
- 👤 Mariko Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:58
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/38
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
123 words
A water-based dispersion ink for a bubble jet system comprising water, a water-soluble organic solvent, a disperse dye, a surfactant, and an alkali- and water-soluble polymer having a carboxylic acid value, wherein the surfactant is a polyoxyethylene alkyl ether having an anionic group selected from the group consisting of a phosphoric acid and a carboxylic acid or a polyoxyethylene alkylphenyl ether having a carboxylic acid, at the ethylene oxide terminal and also having an HLB equal to or more than 10, wherein said surfactant is contained in an amount of from 0.1 to 3% by weight and said alkali- and water-soluble polymer is contained in an amount of from 0.1 to 2.5% by weight, based on a total weight of the ink, respectively.
Claim 2
Dependent Claim
123 words
A water-based dispersion ink for a bubble jet system comprising water, a water-soluble organic solvent, a disperse dye, a surfactant, and an alkali- and water-soluble polymer having a carboxylic acid value, wherein the surfactant is a polyoxyethylene alkyl ether having an anionic group selected from the group consisting of a phosphoric acid and a carboxylic acid or a polyoxyethylene alkylphenyl ether having a carboxylic acid, at the ethylene oxide terminal and also having an HLB equal to or more than 10, wherein said surfactant is contained in an amount of from 0.1 to 3% by weight and said alkali- and water-soluble polymer is contained in an amount of from 0.1 to 2.5% by weight, based on a total weight of the ink, respectively.
Claim 3
Dependent Claim
24 words
A water-based dispersion ink for bubble jet system according to claim 1, wherein the anionic group of said surfactant is neutralized with alcohol amines.
Claim 4
Dependent Claim
22 words
A water-based dispersion ink for bubble jet system according to claim 1, wherein said disperse dye is dispersed by using said surfactant.
Claim 5
Dependent Claim
23 words
A water-based dispersion ink for bubble jet system according to claim 1, wherein said disperse dye is dispersed by using said water-soluble polymer.
Claim 6
Dependent Claim
91 words
A water-based dispersion ink for a bubble jet system consisting of water, a water-soluble organic solvent, a pigment, and a surfactant, wherein the surfactant is a polyoxyethylene alkyl ether or a polyoxyethylene alkylphenyl ether having an anionic group selected from the group consisting of a phosphoric acid and a carboxylic acid, at the ethylene oxide terminal and also having an HLB equal to or more than 10, and wherein said surfactant is contained in an amount of from 0.1 to 3% by weight based on a total weight of the ink.
Claim 7
Dependent Claim
91 words
A water-based dispersion ink for a bubble jet system consisting of water, a water-soluble organic solvent, a pigment, and a surfactant, wherein the surfactant is a polyoxyethylene alkyl ether or a polyoxyethylene alkylphenyl ether having an anionic group selected from the group consisting of a phosphoric acid and a carboxylic acid, at the ethylene oxide terminal and also having an HLB equal to or more than 10, and wherein said surfactant is contained in an amount of from 0.1 to 3% by weight based on a total weight of the ink.
Claim 8
Dependent Claim
21 words
A water-based dispersion ink for bubble jet system according to claim 5, wherein said pigment is dispersed by using said surfactant.
Claim 9
Dependent Claim
24 words
A water-based dispersion ink for bubble jet system according to claim 5, wherein the anionic group of said surfactant is neutralized with alcohol amines.
Claim 10
Dependent Claim
46 words
An ink-jet recording method by which droplets of ink formed by an ink-jet process are applied on a recording medium to perform recording, wherein the water-based dispersion ink as recited in any one of claims 1 to 6, 5 or 7 is employed as said ink.
Claim 11
Dependent Claim
22 words
An ink-jet recording method according to claim 8, wherein said ink-jet process is carried out by applying thermal energy to said ink.
Claim 12
Dependent Claim
37 words
An ink-jet recording method according to claim 9, wherein said ink is ejected to perform the recording from a recording head which utilizes film boiling of a thin film heater as a source for generating ejection energy.
Claim 13
Dependent Claim
31 words
An ink cartridge which has an ink storage portion containing ink, wherein the water-based dispersion ink as recited in any one of claims 1 to 6 is employed as said ink.
Claim 14
Dependent Claim
44 words
A recording unit comprising an ink storage portion containing ink and a head portion for ejecting said ink in the form of ink droplets, wherein the water-based dispersion ink as recited in any one of claims 1 to 7 is employed as said ink.
Claim 15
Dependent Claim
23 words
A recording unit according to claim 12, wherein said ink in said head portion is ejected by applying thermal energy to said ink.
Claim 16
Dependent Claim
35 words
An ink-jet recording apparatus by which droplets of ink formed by an ink-jet process are deposited on a recording medium to perform recording, wherein said apparatus includes the ink cartridge as recited in claim 11.
Claim 17
Dependent Claim
35 words
An ink-jet recording apparatus by which droplets of ink formed by an ink-jet process are deposited on a recording medium to perform recording, wherein said apparatus includes the recording unit as recited in claim 12.
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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) | 2000-08-18 | 2001-02-17 | 2001-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-18 | 2005-02-17 | 2005-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-18 | 2009-02-17 | 2009-08-19 | $7700.00 | Window Closed / Lapsed |