EP0712912A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
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: —
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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 C/O Canon Kabushiki Kaisha Noguchi
- 👤 Masahiro C/O Canon Kabushiki Kaisha Haruta
- 👤 Shoji C/O Canon Kabushiki Kaisha Koike
- 👤 Koromo C/O Canon Kabushiki Kaisha Shirota
- 👤 Aya c/o Canon Kabushiki Kaisha Yoshihira
- 👤 Tomoya C/O Canon Kabushiki Kaisha Yamamoto
- 👤 Mariko C/O Canon Kabushiki Kaisha Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 08:01
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/38
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
77 words
A water-based dispersion ink for a bubble jet system comprising water, a water-soluble organic solvent, a disperse dye or pigment, a surfactant, and/or an alkali-and 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 the group consisting of a phosphoric acid and a carboxylic acid, at the ethylene oxide terminal and also having HLB equal to or more than 10.
Claim 2
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 3
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 4
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 5
Dependent Claim
22 words
A water-based dispersion ink for bubble jet system according to Claim 1, wherein said pigment is dispersed by using said water-soluble polymer.
Claim 6
Dependent Claim
43 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 5 is employed as said ink.
Claim 7
Dependent Claim
22 words
An ink-jet recording method according to Claim 6, wherein said ink-jet process is carried out by applying thermal energy to said ink.
Claim 8
Dependent Claim
37 words
An ink-jet recording method according to Claim 7, wherein said ink is ejected to performed the recording from a recording head which utilizes film boiling of a thin film heater as a source for generating ejection energy.
Claim 9
Dependent Claim
30 words
An ink cartridge which has an ink storage portion containing ink, wherein the water-based dispersion ink as recited in any of Claims 1 to 5 is employed as said ink.
Claim 10
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 5 is employed as said ink.
Claim 11
Dependent Claim
23 words
A recording unit according to Claim 10, wherein said ink in said head portion is ejected by applying thermal energy to said ink.
Claim 12
Dependent Claim
44 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 or the recording unit as recited in any one of Claims 9 to 11.
References Cited (Backward Citations)
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