US4853036A
Expired / Lapsed
US
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Ink for ink-jet recording and ink-jet recording process using the same
Assignee: Canon Inc
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Filing: 1987-11-23
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Granted: 1989-08-01
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Expires: 2007-11-23
Abstract
Abstract An ink for ink-jet recording is provided which comprises a liquid composition essentially comprised of a coloring matter, a volatile solvent having a vapor pressure of 1 mmHg or more at 25° C., and a material being solid at room temperature and having a molecular weight of 300 or more; and prepared so as to satisfy formula B 1 /A 1 ≧3, assuming viscosity as A 1 cP at 25° C. measured when the content of the solid material in said composition is 10% by weight, and assuming viscosity as B 1 cP at 25° C. measured when the content of the solid material in said composition is 30% by weight. An ink-jet recording process employing the above mentioned ink is also provided.
Inventors
- 👤 Shoji Koike
- 👤 Yasuko Tomida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:26
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/36; Y; Y10; Y10S; Y10S260/00; Y10S260/38
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
135 words
A liquid ink-jet recording ink, comprising a water-soluble dye, from 60-95 wt. % of a volatile solvent having a vapor pressure of 1mmHg or more at 25° C. and from 5-35 wt. % of a water-miscible material which is solid at room temperature and has a molecular weight of at least 300, said material being selected from the group consisting of polyethylene glycol, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether and polyoxyethylene/polyoxypropylene block polymer, where said recording ink satisfies formula (I) shown below, assuming viscosity as A 1 cP at 25° C. measured when the content of the solid material in said composition is 10% by weight, and assuming viscosity as B 1 cP at 25° C. measured when the content of the solid material in said composition is 30% by weight: B.sub.1 /A.sub.1 ≧3 (I).
Claim 2
Dependent Claim
135 words
A liquid ink-jet recording ink, comprising a water-soluble dye, from 60-95 wt. % of a volatile solvent having a vapor pressure of 1mmHg or more at 25° C. and from 5-35 wt. % of a water-miscible material which is solid at room temperature and has a molecular weight of at least 300, said material being selected from the group consisting of polyethylene glycol, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether and polyoxyethylene/polyoxypropylene block polymer, where said recording ink satisfies formula (I) shown below, assuming viscosity as A 1 cP at 25° C. measured when the content of the solid material in said composition is 10% by weight, and assuming viscosity as B 1 cP at 25° C. measured when the content of the solid material in said composition is 30% by weight: B.sub.1 /A.sub.1 ≧3 (I).
Claim 3
Dependent Claim
31 words
The ink for ink-jet recording of claim 1, wherein the ink has a surface tension of 35 to 65 dyne/cm and a viscosity of 15 cP or less at 25° C.
Claim 4
Dependent Claim
24 words
The ink for ink-jet recording of claim 1, wherein said volatile solvent has a vapor pressure of 10 mmHg or more at 25° C.
Claim 5
Dependent Claim
23 words
The ink for ink-jet recording of claim 1, wherein said volatile solvent comprises any one of water, a lower alcohol or a ketone.
Claim 6
Dependent Claim
33 words
The ink for ink-jet recording of claim 1, wherein said volatile solvent is contained in an amount ranging from 70 to 95 % by weight based on the total amount of the ink.
Claim 7
Dependent Claim
20 words
The ink for ink-jet recording of claim 1, wherein said solid material has a molecular weight of 600 or more.
Claim 8
Dependent Claim
156 words
A liquid ink-jet recording ink, comprising a water-soluble dye, from 60-95 wt. % of a volatile solvent having a vapor pressure of 1 mmHg or more at 25° C., a low-viscosity solvent having a vapor pressure of less than 1 mmHg and a viscosity of 10 cP or less at 25° C., and from 5-35 wt. % of a water-miscible material which is solid at room temperature and has a molecular weight of at least 300, said material being selected from the group consisting of polyethleneglycol, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether and polyoxyethylene/polyoxypropylene block polymer, wherein said recording ink satisfies formula (II) shown below, assuming viscosity as A 2 cP at 25° C. measured when the content of the solid material in said composition is 10% by weight, and assuming viscosity as B 2 cP at 25° C. measured when the content of the solid material in said composition is 30% by weight: B/A≧3 (II).
Claim 9
Dependent Claim
156 words
A liquid ink-jet recording ink, comprising a water-soluble dye, from 60-95 wt. % of a volatile solvent having a vapor pressure of 1 mmHg or more at 25° C., a low-viscosity solvent having a vapor pressure of less than 1 mmHg and a viscosity of 10 cP or less at 25° C., and from 5-35 wt. % of a water-miscible material which is solid at room temperature and has a molecular weight of at least 300, said material being selected from the group consisting of polyethleneglycol, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether and polyoxyethylene/polyoxypropylene block polymer, wherein said recording ink satisfies formula (II) shown below, assuming viscosity as A 2 cP at 25° C. measured when the content of the solid material in said composition is 10% by weight, and assuming viscosity as B 2 cP at 25° C. measured when the content of the solid material in said composition is 30% by weight: B/A≧3 (II).
Claim 10
Dependent Claim
31 words
The ink for ink-jet recording of claim 7, wherein the ink has a surface tension of 35 to 45 dyne/cm and a viscosity of 15 cP or less at 25° C.
Claim 11
Dependent Claim
24 words
The ink for ink-jet recording of claim 7, wherein said volatile volent has a vapor pressure of 10 mmHg or more at 25° C.
Claim 12
Dependent Claim
23 words
The ink for ink-jet recording of claim 7, wherein said volatile solvent comprises any one of water, a lower alcohol or a ketone.
Claim 13
Dependent Claim
33 words
The ink for ink-jet recording of claim 7, wherein said volatile solvent is contained in an amount ranging from 70 to 95 % by weight based on the total amount of the ink.
Claim 14
Dependent Claim
20 words
The ink for ink-jet recording of claim 7, wherein said solid material has a molecular weight of 600 or more.
Claim 15
Dependent Claim
34 words
The ink for ink-jet recording of claim 7, wherein said low viscosity solvent is contained in an amount ranging from 1 to 30 % by weight based on the total amount of the ink.
Claim 16
Dependent Claim
75 words
A liquid ink-jet recording ink, comprising a water soluble dye, from 60-95 wt. % of a volatile solvent having a vapor pressure of 1 mmHg or more at 25° C. and from 5-35 wt. % of a water-miscible material which is solid at room temperature and has a molecular weight of at least 300, said material being selected from the group consisting of polyethylene glycol, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether and polyoxyethylene/polyoxypropylene block polymer.
Claim 17
Dependent Claim
75 words
A liquid ink-jet recording ink, comprising a water soluble dye, from 60-95 wt. % of a volatile solvent having a vapor pressure of 1 mmHg or more at 25° C. and from 5-35 wt. % of a water-miscible material which is solid at room temperature and has a molecular weight of at least 300, said material being selected from the group consisting of polyethylene glycol, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether and polyoxyethylene/polyoxypropylene block polymer.
Claim 18
Dependent Claim
31 words
The ink for ink-jet recording of claim 14, wherein the ink has a surface tension of 35 to 65 dyne/cm and a viscosity of 15 cP or less at 25° C.
Claim 19
Dependent Claim
24 words
The ink for ink-jet recording of claim 14, wherein said volatile solvent has a vapor pressure of 10 mmHg, or more at 25° C.
Claim 20
Dependent Claim
23 words
The ink for ink-jet recording of claim 14, wherein said volatile solvent comprised any one of water, a lower alcohol or a ketone.
Claim 21
Dependent Claim
32 words
The ink for ink-jet recording of claim 14, wherein said volatile solvent is contained in an amount ranging form 70 to 95% by weight based on the total amount of the ink.
Claim 22
Dependent Claim
20 words
The ink for ink-jet recording of claim 14, wherein said solid material has a molecular weight of 600 or more.
Claim 23
Dependent Claim
96 words
A liquid ink-jet recording ink, comprising a water-soluble dye, from 60-95 wt. % of a volatile solvent having a vapor pressure of 1 mmHg or more at 25° C., a low-viscosity solvent having a vapor pressure of less than 1mmHg and a viscosity of 10 cP or less at 25° C., and from 5-35 wt. % of a water-miscible material which is solid at room temperature and has a molecular weight of at least 300, said material being selected from the group consisting of polyethylene glycol, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether and polyoxyethylene/polyoxypropylene block polymer.
Claim 24
Dependent Claim
96 words
A liquid ink-jet recording ink, comprising a water-soluble dye, from 60-95 wt. % of a volatile solvent having a vapor pressure of 1 mmHg or more at 25° C., a low-viscosity solvent having a vapor pressure of less than 1mmHg and a viscosity of 10 cP or less at 25° C., and from 5-35 wt. % of a water-miscible material which is solid at room temperature and has a molecular weight of at least 300, said material being selected from the group consisting of polyethylene glycol, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether and polyoxyethylene/polyoxypropylene block polymer.
Claim 25
Dependent Claim
31 words
The ink for ink-jet recording of claim 20, wherein the ink has a surface tension of 35 to 65 dyne/cm and a viscosity of 15 cP or less at 25° C.
Claim 26
Dependent Claim
24 words
The ink for ink-jet recording of claim 20, wherein said volatile solvent has a vapor pressure of 10 mmHg or more at 25° C.
Claim 27
Dependent Claim
23 words
The ink for ink-jet recording of claim 20, wherein said volatile solvent comprises any one of water, a lower alcohol or a ketone.
Claim 28
Dependent Claim
32 words
The ink for ink-jet recording of claim 20, wherein said volatile solvent is contained in an amount ranging from 70 to 95% by weight based on the total amount of the ink.
Claim 29
Dependent Claim
20 words
The ink for ink-jet recording of claim 20, wherein said solid material has a molecular weight of 600 or more.
Claim 30
Dependent Claim
33 words
The ink for ink-jet recording of claim 20, wherein said low viscosity solvent is contained in an amount ranging from 2 to 30% by weight based on the total amount of the ink.
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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) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |