EP0447896A2
Expired / Lapsed
EP
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Ink, ink jet recording method employing the same, and apparatus or tool employing the same
Assignee: Canon Inc
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Filing: 1991-03-08
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Granted: —
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Expires: 2011-03-08
Abstract
Abstract An ink includes: a recording agent; a liquid carrier medium; and an alkylether of polyoxyethylene-polyoxypropylene random polymer having the following general formula [I]: R1 - (X) - O - R2 [I] wherein R1 and R2 each is a hydrogen atom or an alkyl group, with the proviso that they cannot both be a hydrogen atom, and X is a random polymer of ethylene oxide and polypropylene oxide.
Inventors
- 👤 Kyouko Fukushima
- 👤 Koromo Shirota
- 👤 Shouji Koike
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 06:16
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
69 words
An ink comprising: a recording agent; a liquid carrier medium; and alkylether of polyoxyethylene-polyoxypropylene random polymer which is represented by the following general formula [I]: R₁ - (X) - O - R₂ [I] where R₁ and R₂ represent a hydrogen atom or an alkyl group, although they do not represent a hydrogen atom at the same time, and X represents a random polymer of ethylene oxide and polypropylene oxide.
Claim 2
Dependent Claim
32 words
The ink according to claim 1, wherein a weight proportion of the alkyl ether of the polymer is between 0.01 wt% and 50 wt% based on the total weight of said ink.
Claim 3
Dependent Claim
25 words
The ink according to claim 1, wherein R₁ and R₂ in General Formula [I] respectively represent an alkyl group having 10 or less of carbons.
Claim 4
Dependent Claim
24 words
The ink according to claim 1, wherein a degree of polymerization of the random polymer in General Formula [1} is between 4 to 200.
Claim 5
Dependent Claim
24 words
The ink according to claim 1, wherein a degree of polymerization of the random polymer in General Formula [1} is between 6 to 100.
Claim 6
Dependent Claim
19 words
The ink according to claim 1, wherein a proportion of ethylene oxide is larger than that of propylene oxide.
Claim 7
Dependent Claim
21 words
The ink according to claim 1, wherein said liquid carrier medium includes a mixture of water and a water-soluble organic solvent.
Claim 8
Dependent Claim
28 words
The ink according to claim 7, wherein a weight proportion of the water is between 50 wt% and 95 wt% based on the total weight of the ink.
Claim 9
Dependent Claim
29 words
The ink according to claim 7, wherein a weight proportion of the organic solvent is between 2 wt% and 50 wt% based on the total weight of the ink.
Claim 10
Dependent Claim
101 words
An ink jet recording method in which recording is conducted on a recording medium by the ejection of an ink droplet from an orifice in accordance with a recording signal, wherein said ink comprises a coloring agent, a liquid carrier medium, and alkyl ether of polyoxyethylene-polyoxypropylene random polymer which is represented by the following general formula [I]: R₁ - (X) - O - R₂ [I] where R₁ and R₂ represent a hydrogen atom or an alkyl group, although they do not represent a hydrogen atom at the same time, and X represents a random polymer of ethylene oxide and polypropylene oxide.
Claim 11
Dependent Claim
19 words
The ink jet recording method according to claim 10, wherein said recording medium comprises a sheet of non-coated paper.
Claim 12
Dependent Claim
24 words
The ink jet recording method according to claim 10, wherein the ink droplet is ejected by the application of thermal energy to the ink.
Claim 13
Dependent Claim
98 words
A recording unit comprising: an ink container portion for holding an ink; and a head portion for ejecting the ink in the form of an ink droplet, wherein said ink comprises a coloring agent, a liquid carrier medium, and alkyl ether of polyoxyethylene-polyoxypropylene random polymer which is represented by the following general formula [I]: R₁ - (X) - O - R₂ [I] where R₁ and R₂ represent a hydrogen atom or an alkyl group, although they do not represent a hydrogen atom at the same time, and X represents a random polymer of ethylene oxide and polypropylene oxide.
Claim 14
Dependent Claim
16 words
The recording unit according to claim 13, wherein said ink container portion is made of polyurethane.
Claim 15
Dependent Claim
28 words
The recording unit according to claim 13, wherein said head portion is a head for ejecting the ink droplet by the application of thermal energy to the ink.
Claim 16
Dependent Claim
83 words
An ink cartridge comprising an ink container portion for holding an ink, wherein said ink comprises a coloring agent, a liquid carrier medium, and alkyl ether of polyoxyethylene-polyoxypropylene random polymer which is represented by the following general formula [I]: R₁ - (X) - O - R₂ [I] where R₁ and R₂ represent a hydrogen atom or an alkyl group, although they do not represent a hydrogen atom at the same time, and X represents a random polymer of ethylene oxide and polypropylene oxide.
Claim 17
Dependent Claim
20 words
The ink cartridge according to claim 16, wherein said ink container portion has a liquid contact surface made of polyolefin.
Claim 18
Dependent Claim
104 words
An ink jet recording apparatus comprising: a recording unit including an ink container portion for holding an ink, and a head portion for ejecting the ink in the form of an ink droplet, wherein said ink comprises a coloring agent, a liquid carrier medium, and alkyl ether of polyoxyethylene-polyoxypropylene random polymer which is represented by the following general formula [I]: R₁ - (X) - O - R₂ [I] where R₁ and R₂ represent a hydrogen atom or an alkyl group, although they do not represent a hydrogen atom at the same time, and X represents a random polymer of ethylene oxide and polypropylene oxide.
Claim 19
Dependent Claim
18 words
The ink jet recording apparatus according to claim 18, wherein said ink container portion is made of polyurethane.
Claim 20
Dependent Claim
30 words
The ink jet recording apparatus according to claim 18, wherein said head portion is a head for ejecting the ink droplet by the application of thermal energy to the ink.
Claim 21
Dependent Claim
114 words
An ink jet recording apparatus comprising: a recording head for ejecting an ink droplet; an ink cartridge having an ink container portion for holding an ink; and an ink supplying portion for supplying the ink from said ink cartridge to said recording head, wherein said ink comprises a coloring agent, a liquid carrier medium, and alkyl ether of polyoxyethylene-polyoxypropylene random polymer which is represented by the following general formula [I]: R₁ - (X) - O - R₂ [I] where R₁ and R₂ represent a hydrogen atom or an alkyl group, although they do not represent a hydrogen atom at the same time, and X represents a random polymer of ethylene oxide and polypropylene oxide.
Claim 22
Dependent Claim
22 words
The ink jet recording apparatus according to claim 21, wherein said ink container portion has a liquid contact surface made of polyolefin.
Claim 23
Dependent Claim
30 words
The ink jet recording apparatus according to claim 21, wherein said recording head is a head for ejecting the ink droplet by the application of thermal energy to the ink.
Claim 24
Dependent Claim
20 words
The ink according to either of claims 1 to 7, wherein said ink is used in an ink jet recording.
Claim 25
Dependent Claim
23 words
The recording unit according to either of claims 13 to 15, wherein said recording unit is used in an ink jet recording apparatus.
Claim 26
Dependent Claim
23 words
The ink cartridge according to either of claims 16 to 17, wherein said ink cartridge is used in an ink jet recording apparatus.
References Cited (Backward Citations)
No citation records indexed.
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