US5769930A
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Ink composition for ink jet recording and recording process using same
Assignee: Seiko Epson Corp
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Filing: 1996-10-03
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Granted: 1998-06-23
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Expires: 2016-10-03
Abstract
Abstract An ink composition for ink jet recording, ink composition set, ink cartridge, ink jet recording apparatus and ink jet recording process is disclosed, which can give a highly colored and high quality recorded image without causing color bleeding and feathering with a high reliability in recovery from clogging in ink jet recording. The ink composition comprises (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water. As the foregoing liquid wetting agent component (C) there is contained glycerin in an amount of not less than 8% by weight based on the weight of the composition.
Inventors
- 👤 Tsuyoshi Sano
- 👤 Hiroko Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:53
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
50 words
An ink composition for ink jet recording comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight based on the weight of the ink composition.
Claim 2
Dependent Claim
50 words
An ink composition for ink jet recording comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight based on the weight of the ink composition.
Claim 3
Dependent Claim
23 words
The ink composition according to claim 1, wherein the weight ratio of said alginate (B) to glycerin is from 1: 50 to 1:200.
Claim 4
Dependent Claim
84 words
The ink composition according to claim 1, wherein said penetrant (D) comprises a single or a plurality of penetrants selected from the group consisting of (I) a surface active agent having a concentration of not more than critical micelle concentration in said composition, (II) a monohydric alcohol in an amount of from 1 to 10% by weight based on the weight of said composition, and (III) a polyhydric alcohol derivative in an amount of from 0.5 to 5% by weight based on said composition.
Claim 5
Dependent Claim
85 words
The ink composition according to claim 2, wherein as said penetrant (D) comprises a single or a plurality of penetrants selected from the group consisting of (I) a surface active agent having a concentration of not more than critical micelle concentration in said composition, (II) a monohydric alcohol in an amount of from 1 to 10% by weight based on the weight of said composition, and (III) a polyhydric alcohol derivative in an amount of from 0.5 to 5% by weight based on said composition.
Claim 6
Dependent Claim
33 words
The ink composition according to claim 3, comprising an acetylene glycol surface active agent as said surface active agent (I) and triethylene glycol monobutyl ether as said polyhydric alcohol derivative (III) in combination.
Claim 7
Dependent Claim
33 words
The ink composition according to claim 4, comprising an acetylene glycol surface active agent as said surface active agent (I) and triethylene glycol monobutyl ether as said polyhydric alcohol derivative (III) in combination.
Claim 8
Dependent Claim
14 words
The ink composition according to claim 1, further comprising (F) a solid wetting agent.
Claim 9
Dependent Claim
33 words
The ink composition according to claim 7, wherein said solid wetting agent (F) is present in an amount of from 0.5 to 20% by weight based on the weight of said ink composition.
Claim 10
Dependent Claim
15 words
The ink composition according to claim 1, further comprising (G) a surface diffusibility imparting agent.
Claim 11
Dependent Claim
28 words
The ink composition according to claim 9, wherein said surface diffusibility imparting agent (G) is a compound containing an --SiO-- group or a fluorine atom in its molecule.
Claim 12
Dependent Claim
34 words
The ink composition according to claim 9, wherein said surface diffusibility imparting agent (G) is present in an amount of from 0.01 to 10% by weight based on the weight of said ink composition.
Claim 13
Dependent Claim
22 words
The ink composition according to claim 1, wherein said colorant (A) comprises a dye containing a carboxylic acid group or carboxylate group.
Claim 14
Dependent Claim
30 words
The ink composition according to claim 1, wherein said alginate (B) comprises one comprising D-mannuroic acid and L-gluroic acid in a proportion (D-mannuroic acid/L-gluroic acid) of from 0.8 to 1.5.
Claim 15
Dependent Claim
73 words
An ink composition set for color ink jet recording comprising two or more color ink compositions, wherein at least one of said ink compositions is an ink composition comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight or more based on the weight of the ink composition.
Claim 16
Dependent Claim
73 words
An ink composition set for color ink jet recording comprising two or more color ink compositions, wherein at least one of said ink compositions is an ink composition comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight or more based on the weight of the ink composition.
Claim 17
Dependent Claim
52 words
An ink cartridge, containing an ink composition comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight or more based on the weight of the ink composition.
Claim 18
Dependent Claim
52 words
An ink cartridge, containing an ink composition comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight or more based on the weight of the ink composition.
Claim 19
Dependent Claim
86 words
A color ink cartridge, containing various ink compositions constituting an ink composition set for color ink jet recording in separate partitioned compartments comprising two or more color ink compositions, wherein at least one of said ink compositions is an ink composition comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight or more based on the weight of the ink composition.
Claim 20
Dependent Claim
86 words
A color ink cartridge, containing various ink compositions constituting an ink composition set for color ink jet recording in separate partitioned compartments comprising two or more color ink compositions, wherein at least one of said ink compositions is an ink composition comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight or more based on the weight of the ink composition.
Claim 21
Dependent Claim
57 words
An ink jet recording apparatus, containing an ink cartridge containing an ink composition comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight or more based on the weight of the composition.
Claim 22
Dependent Claim
57 words
An ink jet recording apparatus, containing an ink cartridge containing an ink composition comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight or more based on the weight of the composition.
Claim 23
Dependent Claim
93 words
A color ink jet recording apparatus, containing a color ink cartridge containing various ink compositions constituting an ink composition set for color ink jet recording comprising two or more color ink compositions, wherein at least one of said ink compositions is an ink composition comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight or more based on the weight of the ink composition in separate partitioned compartments.
Claim 24
Dependent Claim
93 words
A color ink jet recording apparatus, containing a color ink cartridge containing various ink compositions constituting an ink composition set for color ink jet recording comprising two or more color ink compositions, wherein at least one of said ink compositions is an ink composition comprising (A) a colorant, (B) an alginate, (C) a liquid wetting agent, (D) a penetrant, and (E) water, wherein glycerin is present in said liquid wetting agent (C) in an amount of 8% by weight or more based on the weight of the ink composition in separate partitioned compartments.
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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) | 2001-06-22 | 2001-12-22 | 2002-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-22 | 2005-12-22 | 2006-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-22 | 2009-12-22 | 2010-06-23 | $7700.00 | Window Closed / Lapsed |