US5229786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink-jet recording method, recording unit, ink cartridge and recording apparatus employing recording liquid
Assignee: Canon Inc
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Filing: 1992-07-31
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Granted: 1993-07-20
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Expires: 2012-07-31
Abstract
Abstract A recording liquid including a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is in the state of being dissolved in the recording liquid without being absorbed on the pigment is contained in an amount of not more than 2% by weight; and the water-soluble organic solvent comprises at least one of a polyhydric alcohol and an alkyl ether thereof, and an aliphatic monohydric alcohol. This recording liquid is used in an ink-jet recording method, recording unit, ink cartridge, and ink-jet recording apparatus.
Inventors
- 👤 Yuko Suga
- 👤 Hiromichi Noguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:24
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/324; C09D11/326; C09D11/322
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
98 words
An ink-jet recording method comprising applying heat energy to a recording liquid and ejecting the recording liquid from a minute orifice in the form of droplets, said recording liquid comprising a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is dissolved in the recording liquid without being absorbed on the pigment is contained in an amount of not more than 2% by weight; and the water-soluble organic solvent comprises (i) an aliphatic monohydric alcohol, and (ii) at least one of a polyhydric alcohol and an alkyl ether thereof.
Claim 2
Dependent Claim
98 words
An ink-jet recording method comprising applying heat energy to a recording liquid and ejecting the recording liquid from a minute orifice in the form of droplets, said recording liquid comprising a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is dissolved in the recording liquid without being absorbed on the pigment is contained in an amount of not more than 2% by weight; and the water-soluble organic solvent comprises (i) an aliphatic monohydric alcohol, and (ii) at least one of a polyhydric alcohol and an alkyl ether thereof.
Claim 3
Dependent Claim
16 words
An ink-jet recording method according to claim 1, wherein said aliphatic monohydric alcohol is ethyl alcohol.
Claim 4
Dependent Claim
25 words
An ink-jet recording method according to claim 1, wherein said aliphatic monohydric alcohol is contained in an amount ranging from 3 to 15% by weight.
Claim 5
Dependent Claim
21 words
An ink-jet recording method according to claim 1, wherein said water-soluble resin has an acid value of from 50 to 300.
Claim 6
Dependent Claim
21 words
An ink-jet recording method according to claim 1, wherein said water-soluble resin has an acid value of from 70 to 250.
Claim 7
Dependent Claim
96 words
A recording unit having an ink container for holding a recording liquid and a head portion for ejecting the recording liquid as liquid droplets, said recording liquid comprising a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is dissolved in the recording liquid without being absorbed on the pigment is contained in an amount of not more than 2% by weight; and the water-soluble organic solvent comprises (i) an aliphatic monohydric alcohol, and (ii) at least one of a polyhydric alcohol and an alkyl ether thereof.
Claim 8
Dependent Claim
96 words
A recording unit having an ink container for holding a recording liquid and a head portion for ejecting the recording liquid as liquid droplets, said recording liquid comprising a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is dissolved in the recording liquid without being absorbed on the pigment is contained in an amount of not more than 2% by weight; and the water-soluble organic solvent comprises (i) an aliphatic monohydric alcohol, and (ii) at least one of a polyhydric alcohol and an alkyl ether thereof.
Claim 9
Dependent Claim
23 words
The recording unit of claim 6, wherein the head portion ejects liquid droplets by the action of thermal energy on the recording liquid.
Claim 10
Dependent Claim
15 words
The recording unit of claim 6, wherein the ink container comprises an ink absorption member.
Claim 11
Dependent Claim
15 words
The recording unit of claim 8, wherein the ink absorption member is formed from polyurethane.
Claim 12
Dependent Claim
84 words
An ink cartridge having an ink container for holding a recording liquid, said recording liquid comprising a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is dissolved in the recording liquid without being absorbed on the pigment is contained in an amount of not more than 2% by weight; and the water-soluble organic solvent comprises (i) an aliphatic monohydric alcohol, and (ii) at least one of a polyhydric alcohol and an alkyl ether thereof.
Claim 13
Dependent Claim
84 words
An ink cartridge having an ink container for holding a recording liquid, said recording liquid comprising a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is dissolved in the recording liquid without being absorbed on the pigment is contained in an amount of not more than 2% by weight; and the water-soluble organic solvent comprises (i) an aliphatic monohydric alcohol, and (ii) at least one of a polyhydric alcohol and an alkyl ether thereof.
Claim 14
Dependent Claim
14 words
The ink cartridge of claim 10, wherein the ink container is a bag structure.
Claim 15
Dependent Claim
17 words
The ink cartridge of claim 10, wherein the ink container has a liquid-contact face formed of polyolefin.
Claim 16
Dependent Claim
101 words
An ink-jet recording apparatus comprising a recording unit having an ink container for holding a recording liquid and a head portion for ejecting the recording liquid as liquid droplets, said recording liquid comprising a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is dissolved in the recording liquid without being absorbed in the pigment is contained in an amount of not more than 2% by weight; and the water-soluble organic solvent comprises (i) an aliphatic monohydric alcohol, and (ii) at least one of a polyhydric alcohol and an alkyl ether thereof.
Claim 17
Dependent Claim
101 words
An ink-jet recording apparatus comprising a recording unit having an ink container for holding a recording liquid and a head portion for ejecting the recording liquid as liquid droplets, said recording liquid comprising a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is dissolved in the recording liquid without being absorbed in the pigment is contained in an amount of not more than 2% by weight; and the water-soluble organic solvent comprises (i) an aliphatic monohydric alcohol, and (ii) at least one of a polyhydric alcohol and an alkyl ether thereof.
Claim 18
Dependent Claim
23 words
The ink-jet recording apparatus of claim 13, wherein the head portion ejects droplets by the action of thermal energy on the recording liquid.
Claim 19
Dependent Claim
16 words
The ink-jet recording apparatus of claim 13, wherein the ink container comprises an ink absorption member.
Claim 20
Dependent Claim
16 words
The ink-jet recording apparatus of claim 15, wherein the ink absorption member is formed from polyurethane.
Claim 21
Dependent Claim
116 words
An ink-jet recording apparatus comprising a recording head for ejecting the recording as liquid droplets, an ink cartridge having an ink container for holding a recording liquid, and an ink supplying portion for supplying the recording liquid to the recording head from the ink cartridge, said recording liquid comprising a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is dissolved in the recording liquid without being absorbed on the pigment is contained in am amount of not more than 2% weight; and the water-soluble organic solvent comprises (i) an aliphatic monohydric alcohol, and (ii) at least one of a polyhydric alcohol and an alkyl ether thereof.
Claim 22
Dependent Claim
116 words
An ink-jet recording apparatus comprising a recording head for ejecting the recording as liquid droplets, an ink cartridge having an ink container for holding a recording liquid, and an ink supplying portion for supplying the recording liquid to the recording head from the ink cartridge, said recording liquid comprising a pigment, a water-soluble resin, a water-soluble organic solvent, and water, wherein, of the water-soluble resin, water-soluble resin that is dissolved in the recording liquid without being absorbed on the pigment is contained in am amount of not more than 2% weight; and the water-soluble organic solvent comprises (i) an aliphatic monohydric alcohol, and (ii) at least one of a polyhydric alcohol and an alkyl ether thereof.
Claim 23
Dependent Claim
24 words
The ink-jet recording apparatus of claim 17, wherein the recording head ejects liquid droplets by the action of thermal energy on the recording liquid.
Claim 24
Dependent Claim
15 words
The ink-jut recording apparatus of claim 17, wherein the ink container is a bag structure.
Claim 25
Dependent Claim
18 words
The ink-jet recording apparatus of claim 17, wherein the ink container has a liquid-contact face formed of polyolefin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-19 | 1997-01-18 | 1997-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-19 | 2001-01-18 | 2001-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-19 | 2005-01-18 | 2005-07-20 | $7700.00 | Window Closed / Lapsed |