EP0618278A2
Expired / Lapsed
EP
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Ink, and ink-jet recording method and apparatus employing the same
Assignee: Canon Inc
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Filing: 1994-03-29
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Granted: —
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Expires: 2014-03-29
Abstract
Abstract An ink for ink-jet recording is provided which contains a coloring material and an aqueous liquid medium for solving or dispersing the coloring material, the liquid medium having a lower critical consolute temperature (Tc) to cause phase separation at a temperature in the range of from 40 to 100°C. Ink-jet recording method and an ink-jet recording apparatus employing the above ink are also provided.
Inventors
- 👤 Hiromichi C/O Canon Kabushiki Kaisha Noguchi
- 👤 Yuko C/O Canon Kabushiki Kaisha Suga
- 👤 Katsuhiro C/O Canon Kabushiki Kaisha Shirota
- 👤 Akio C/O Canon Kabushiki Kaisha Kashiwazaki
- 👤 Aya C/O Canon Kabushiki Kaisha Takaide
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 06:46
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
43 words
An ink containing a coloring material and an aqueous liquid medium for solving or dispersing the coloring material, the liquid medium having a lower critical consolute temperature (Tc) to cause phase separation at a temperature in the range of from 40 to 100°C.
Claim 2
Dependent Claim
20 words
The ink according to claim 1, wherein the liquid medium contains a polymeric compound giving a lower critical consolute temperature.
Claim 3
Dependent Claim
21 words
The ink according to claim 2, wherein the polymeric compound is a copolymer having as a monomer unit an N-alkyl-substituted acrylamide.
Claim 4
Dependent Claim
23 words
The ink according to claim 1, wherein the liquid medium contains a solvent which is a compound giving a lower critical consolute temperature.
Claim 5
Dependent Claim
37 words
An ink-jet recording method which conducts recording by ejecting ink droplets through an orifice of a recording head onto a recording medium in correspondence with recording signals, the ink being the one as defined in claim 1.
Claim 6
Dependent Claim
28 words
The ink-jet recording method according to claim 5, wherein the ink is ejected in a form of liquid droplets by action of thermal energy given to the ink.
Claim 7
Dependent Claim
33 words
The ink-jet recording method according to claim 5, wherein the recording medium is kept at a temperature higher than the lower critical consolute temperature of the liquid medium of the ink on recording.
Claim 8
Dependent Claim
53 words
The ink-jet recording method according to claim 5, wherein the recording head is kept at a temperature lower than the lower critical consolute temperature of the liquid medium of the ink, and the recording medium is kept at a temperature higher than the lower critical consolute temperature of the liquid medium on recording.
Claim 9
Dependent Claim
31 words
A recording unit having an ink container for holding an ink, and a head for ejecting the ink as ink droplets, the ink being the one as defined in claim 1.
Claim 10
Dependent Claim
21 words
The recording unit according to claim 9, wherein the head ejects ink by action of thermal energy given to the ink.
Claim 11
Dependent Claim
19 words
An ink cartridge having ink container for holding ink, the ink being the one as defined in claim 1.
Claim 12
Dependent Claim
36 words
An ink-jet recording apparatus having an ink container for holding an ink, and a recording unit having a head for ejecting the ink as ink droplets, the ink being the one as defined in claim 1.
Claim 13
Dependent Claim
26 words
The ink-jet recording apparatus according to claim 12, wherein the head ejects the ink as liquid droplets by action of thermal energy given to the ink.
Claim 14
Dependent Claim
19 words
The ink-jet recording apparatus according to claim 12, wherein the apparatus has a means for heating a recording medium.
Claim 15
Dependent Claim
52 words
An ink-jet recording apparatus having a recording unit for ejecting droplets of an ink, an ink cartridge having an ink container for holding the ink, and an ink supplying device for supplying the ink from the ink cartridge to the recording unit, the ink being the one as defined in claim 1.
Claim 16
Dependent Claim
31 words
The ink-jet recording apparatus according to claim 15, wherein the recording unit has a head for ejecting the ink as liquid droplets by action of thermal energy given to the ink.
Claim 17
Dependent Claim
19 words
The ink-jet recording apparatus according to claim 16, wherein the apparatus has a means for heating a recording medium.
References Cited (Backward Citations)
No citation records indexed.
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