EP0211278A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Recording liquid, recording method by use thereof, and method of color image formation
Assignee: Canon Inc
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Filing: 1986-07-14
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Granted: —
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Expires: 2006-07-14
Abstract
Abstract A recording liquid is provided which comprises a mixture of a recording agent with a water-soluble organic solvent, and water, said mixture giving an aqueous solution having a viscosity of 25 cp or higher at a mixture-water ratio of 9 : 1 by weight, and giving an aqueous solution having a viscosity of 15 cp or lower at said ratio of 1 : 1 by weight at 25 °C, respectively. A recording method is also provided which performs by attaching droplets of the above-mentioned recording liquid onto a recording medium.
Inventors
- 👤 Kazuo Iwata
- 👤 Shinichi Tochihara
- 👤 Shoji Koike
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 17:33
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/16
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
67 words
A recording liquid comprising a mixture of a recording agent with a water-soluble organic solvent, and water, said mixture giving an aqueous solution having a viscosity of 25 cp or higher at a mixture-water ratio of 9 : 1 by weight, and giving an aqueous solution having a viscosity of 15 cp or lower at said ratio of 1 : 1 by weight at 25 °C, respectively.
Claim 2
Dependent Claim
67 words
A recording liquid comprising a mixture of a recording agent with a water-soluble organic solvent, and water, said mixture giving an aqueous solution having a viscosity of 25 cp or higher at a mixture-water ratio of 9 : 1 by weight, and giving an aqueous solution having a viscosity of 15 cp or lower at said ratio of 1 : 1 by weight at 25 °C, respectively.
Claim 3
Dependent Claim
47 words
The recording liquid according to Claim 1, wherein said aqueous solution has a viscosity of 29 cp or higher at a mixture-water ratio of 9 : 1 by weight, and has a viscosity of 14 cp or lower at said ratio of 1 : 1 by weight.
Claim 4
Dependent Claim
21 words
The recording liquid according to Claim 1, wherein said water-soluble organic solvent contains an alkylene oxide adduct of a polyhydric alcohol.
Claim 5
Dependent Claim
34 words
The recording liquid according to Claim 3, wherein said alkylene oxide adduct is contained at a concentration ranging from 0.05 to 4 % by weight based on the total weight of the recording liquid.
Claim 6
Dependent Claim
34 words
The recording liquid according to Claim 1, wherein said alkylene oxide adduct is contained at a concentration ranging from 0.05 to 2 % by weight based on the total weight of the recording liquid.
Claim 7
Dependent Claim
98 words
A recording method which performs recording by attaching liquid droplets of a recording liquid onto a recording medium, said recording liquid comprising a mixture of a recording agent with a water-soluble organic solvent, and water, said mixture giving an aqueous solution having a viscosity of 25 cp or higher at a mixture-water ratio of 9 : 1 by weight, and having a viscosity of 15 cp or lower at said ratio of 1 : 1 by weight at 25 °C, respectively, and said recording medium having been sized and having fibers exposed on the surface to be recorded.
Claim 8
Dependent Claim
98 words
A recording method which performs recording by attaching liquid droplets of a recording liquid onto a recording medium, said recording liquid comprising a mixture of a recording agent with a water-soluble organic solvent, and water, said mixture giving an aqueous solution having a viscosity of 25 cp or higher at a mixture-water ratio of 9 : 1 by weight, and having a viscosity of 15 cp or lower at said ratio of 1 : 1 by weight at 25 °C, respectively, and said recording medium having been sized and having fibers exposed on the surface to be recorded.
Claim 9
Dependent Claim
33 words
The recording method according to Claim 6, wherein said recording medium made of paper having a basis weight of 50 - 100 g/m 2 and Stoeckigt sizing degree of 5 - 60 seconds.
Claim 10
Dependent Claim
20 words
The recording method according to Claim 6, wherein said water-soluble organic solvent contains an alkylene oxide adduct of polyhydric alcohol.
Claim 11
Dependent Claim
38 words
The recording method according to Claim 6, wherein said alkylene oxide adduct of a polyhydric alcohol is contained at a concentration ranging from 0.05 to 4 % by weight based on the total weight of the recording liquid.
Claim 12
Dependent Claim
99 words
A recording method which performs recording by attaching droplets of yellow, magenta, cyan, and black inks onto a recording medium, said recording liquid comprising a mixture of a recording agent with a water-soluble organic solvent, and water, said mixture giving an aqueous solution having a viscosity of 25 cp or higher at a mixture-water ratio of 9 : 1 by weight, and having a viscosity of 15 cp or lower at said ratio of 1 : 1 by weight at 25 °C, and said recording medium having been sized and having fibers exposed on the surface to be recorded.
Claim 13
Dependent Claim
99 words
A recording method which performs recording by attaching droplets of yellow, magenta, cyan, and black inks onto a recording medium, said recording liquid comprising a mixture of a recording agent with a water-soluble organic solvent, and water, said mixture giving an aqueous solution having a viscosity of 25 cp or higher at a mixture-water ratio of 9 : 1 by weight, and having a viscosity of 15 cp or lower at said ratio of 1 : 1 by weight at 25 °C, and said recording medium having been sized and having fibers exposed on the surface to be recorded.
Claim 14
Dependent Claim
33 words
The recording method according to Claim 10, wherein said recording medium made of paper having a basis weight of 50 - 100 g/m 2 and Stoeckigt sizing degree of 5 - 60 seconds.
Claim 15
Dependent Claim
20 words
The recording method according to Claim 10, wherein said water-soluble organic solvent contains an alkylene oxide adduct of polyhydric alcohol.
Claim 16
Dependent Claim
38 words
The recording method according to Claim 10, wherein said alkylene oxide adduct of a polyhydric alcohol is contained at a concentration ranging from 0.05 to 4 % by weight based on the total weight of the recording liquid.
References Cited (Backward Citations)
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