EP0447784A1
Expired / Lapsed
EP
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Ink, Ink-jet recording process, and instrument making use of the ink
Assignee: Canon Inc
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Filing: 1991-02-08
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Granted: —
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Expires: 2011-02-08
Abstract
Abstract An ink comprises a recording agent and a liquid medium capable of dissolving or dispersing the recording agent. The ink contains a compound represented by the following Formula (I). R₁-CONH-R₂ (I) wherein R₁ represents an alkyl group or aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; and R₂ represents a hydrogen atom, an amide group, an aminoalkyl group, an aliphatic carboxylic acid residual group, or an aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; provided that R₁ represents the unsubstituted or substituted aryl group when R₂ is a hydrogen atom. The ink is suitably used in the ink-jet recording.
Inventors
- 👤 Shinichi Tochihara
- 👤 Makoto Aoki
- 👤 Kumiko Mafune
- 👤 Akira Nagashima
- 👤 Kenji Aono
- 👤 Osamu Nishiwaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 03:11
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/38; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
127 words
An ink comprising a recording agent and a liquid medium capable of dissolving or dispersing the recording agent, wherein said ink contains a compound represented by the following Formula (I). R₁-CONH-R₂ (I) wherein R₁ represents an alkyl group or aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; and R₂ represents a hydrogen atom, an amide group, an aminoalkyl group, an aliphatic carboxylic acid residual group, or an aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; provided that R₁ represents the unsubstituted or substituted aryl group when R₂ is a hydrogen atom.
Claim 2
Dependent Claim
28 words
An ink according to Claim 1, wherein water is contained in an amount of from 40 wt.% to 95 wt.% based on the total weight of the ink.
Claim 3
Dependent Claim
15 words
An ink according to Claim 1, wherein said liquid medium comprises a water-soluble organic solvent.
Claim 4
Dependent Claim
33 words
An ink according to Claim 1, wherein said compound represented by Formula (I) is contained in an amount of from 0.1 wt.% to 30 wt.% based on the total weight of the ink.
Claim 5
Dependent Claim
134 words
An ink-jet recording process comprising ejecting ink droplets from an orifice in accordance with a recording signal to make a record on a recording medium, wherein said ink contains a compound represented by the following Formula (I). R₁-CONH-R₂ (I) wherein R₁ represents an alkyl group or aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; and R₂ represents a hydrogen atom, an amide group, an aminoalkyl group, an aliphatic carboxylic acid residual group, or an aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; provided that R₁ represents the unsubstituted or substituted aryl group when R₂ is a hydrogen atom.
Claim 6
Dependent Claim
16 words
An ink-jet recording process according to Claim 5, wherein said recording medium comprises a non-coated paper.
Claim 7
Dependent Claim
22 words
An ink-jet recording process according to Claim 5, wherein a heat energy is acted on the ink to eject said ink droplets.
Claim 8
Dependent Claim
136 words
A recording unit comprising an ink holder that has held an ink and a head from which the ink is ejected in the form of ink droplets, wherein said ink contains a compound represented by the following Formula (I). R₁-CONH-R₂ (I) wherein R₁ represents an alkyl group or aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; and R₂ represents a hydrogen atom, an amide group, an aminoalkyl group, an aliphatic carboxylic acid residual group, or an aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; provided that R₁ represents the unsubstituted or substituted aryl group when R₂ is a hydrogen atom.
Claim 9
Dependent Claim
15 words
A recording unit according to Claim 8, wherein said ink holder is formed of polyurethane.
Claim 10
Dependent Claim
30 words
A recording unit according to Claim 8, wherein said head comprises a head in which a heat energy is acted on the ink so that the ink droplets are ejected.
Claim 11
Dependent Claim
121 words
An ink cartridge comprising an ink holder that has held an ink, wherein said ink contains a compound represented by the following Formula (I). R₁-CONH-R₂ (I) wherein R₁ represents an alkyl group or aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; and R₂ represents a hydrogen atom, an amide group, an aminoalkyl group, an aliphatic carboxylic acid residual group, or an aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; provided that R₁ represents the unsubstituted or substituted aryl group when R₂ is a hydrogen atom.
Claim 12
Dependent Claim
19 words
An ink cartridge according to Claim 11, wherein said ink holder has a liquid-contact surface formed of a polyolefin.
Claim 13
Dependent Claim
141 words
An ink-jet recording apparatus comprising a recording unit comprising an ink holder that has held an ink and a head from which the ink is ejected in the form of ink droplets, wherein said ink contains a compound represented by the following Formula (I). R₁-CONH-R₂ (I) wherein R₁ represents an alkyl group or aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; and R₂ represents a hydrogen atom, an amide group, an aminoalkyl group, an aliphatic carboxylic acid residual group, or an aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; provided that R₁ represents the unsubstituted or substituted aryl group when R₂ is a hydrogen atom.
Claim 14
Dependent Claim
16 words
An ink-jet recording apparatus according to Claim 13, wherein said ink holder is formed of polyurethane.
Claim 15
Dependent Claim
31 words
An ink-jet recording apparatus according to Claim 13, wherein said head comprises a head in which a heat energy is acted on the ink so that the ink droplets are ejected.
Claim 16
Dependent Claim
150 words
An ink-jet recording apparatus comprising a recording head from which ink droplets are ejected, an ink cartridge having an ink holder that has held an ink, and an ink feeder that feeds ink from said ink cartridge to said recording head, wherein said ink contains a compound represented by the following Formula (I). R₁-CONH-R₂ (I) wherein R₁ represents an alkyl group or aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; and R₂ represents a hydrogen atom, an amide group, an aminoalkyl group, an aliphatic carboxylic acid residual group, or an aryl group unsubstituted or substituted with a group selected from a hydroxyl group, a carboxyl group, a sulfone group, an amino group and an acetylamino group; provided that R₁ represents the unsubstituted or substituted aryl group when R₂ is a hydrogen atom.
Claim 17
Dependent Claim
20 words
An ink-jet recording apparatus according to Claim 16, wherein said ink holder has a liquid-contact surface formed of a polyolefin.
Claim 18
Dependent Claim
32 words
An ink-jet recording apparatus according to Claim 16, wherein said recording head comprises a head in which a heat energy is acted on the ink so that the ink droplets are ejected.
Claim 19
Dependent Claim
16 words
Use of the ink according to any one of Claims 1 to 4 in ink-jet recording.
Claim 20
Dependent Claim
19 words
Use of the recording unit according to any one of Claims 8 to 10 in an ink-jet recording apparatus.
Claim 21
Dependent Claim
16 words
Use of the ink cartridge according to Claim 11 or 12 in an ink-jet recording apparatus.
References Cited (Backward Citations)
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