US5108504A
Expired / Lapsed
US
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High chroma color dye-set for use in ink-jet inks employing polysaccharide-containing vehicles
Assignee: HP Inc
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Filing: 1991-07-29
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Granted: 1992-04-28
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Expires: 2011-07-29
Abstract
Abstract A set of dyes is provided for use in vehicles employing high molecular weight saccharides. The dye-set comprises about 1 to 4% xanthene magenta, about 0.9 to 2% of a mixture of Acid Yellow 23 and Direct Yellow 86, and about 0.75 to 2.5 of Acid Blue 9 or a mixture of Acid Blue 9 and a copper phthalocyanine dye containing not more than about 25% copper phthalocyanine. The particular dye-set evidences the following properties: good crusting resistance, good stability, the proper viscosity, the proper surface tension, recognizable secondaries, high color saturation, little color-to-color bleed, rapid drytime, no negative reaction with the vehicle, be highly soluble in the vehicle, consumer-safe, and low strike-through.
Inventors
- 👤 Loren E. Johnson
- 👤 John R. Moffatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:18
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/40
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
115 words
An ink-jet ink-set comprising magenta ink, yellow ink, and cyan inks for use with ink-jet printers, each ink comprising a vehicle and at least one dye: (a) said vehicle containing at least one high molecular weight polysaccharide; (b) said magenta ink consisting essentially of about 1 to 4 wt. % xanthene magenta dye; (c) said yellow ink consisting essentially of about 0.9 to 2wt. % of a mixture of Acid Yellow 23 and Direct Yellow 86 dyes; and (d) said cyan ink consisting essentially of about 0.75 to 2.5wt. % of Acid Blue 9 dye or of a mixture of Acid Blue 9 dye and up to about 25wt. % of a copper phthalocyanine dye.
Claim 2
Dependent Claim
115 words
An ink-jet ink-set comprising magenta ink, yellow ink, and cyan inks for use with ink-jet printers, each ink comprising a vehicle and at least one dye: (a) said vehicle containing at least one high molecular weight polysaccharide; (b) said magenta ink consisting essentially of about 1 to 4 wt. % xanthene magenta dye; (c) said yellow ink consisting essentially of about 0.9 to 2wt. % of a mixture of Acid Yellow 23 and Direct Yellow 86 dyes; and (d) said cyan ink consisting essentially of about 0.75 to 2.5wt. % of Acid Blue 9 dye or of a mixture of Acid Blue 9 dye and up to about 25wt. % of a copper phthalocyanine dye.
Claim 3
Dependent Claim
25 words
The ink-set of claim 1 wherein said xanthene magenta dye is selected from the group consisting of Acid Red 52 and Acid Red 289 dyes.
Claim 4
Dependent Claim
27 words
The ink-set of claim 1 wherein said mixture of Acid Yellow 23 and Direct Yellow 86 dyes ranges in ratio from about 40:60 to 60:40 of AY23:DY86.
Claim 5
Dependent Claim
27 words
The ink-set of claim 3 wherein said ratio is about 50:50 and is present in said ink in an amount ranging from about 1 to 1.5wt. %.
Claim 6
Dependent Claim
18 words
The ink-set of claim 1, wherein both Acid Yellow 23 and Direct Yellow 86 dyes include tetramethylammonium counter-ion.
Claim 7
Dependent Claim
25 words
The ink-set of claim 1 wherein said copper phthalocyanine dye is selected from the group consisting of Direct Blue 86 and Direct Blue 19 dyes.
Claim 8
Dependent Claim
13 words
The ink-set of claim 1, wherein said copper phthalocyanine dye includes lithium counter-ion.
Claim 9
Dependent Claim
68 words
The ink-set of claim 1 wherein said vehicle comprises: (a) about 0.05 to 0.75 wt. % of a high molecular weight polysaccharide having a molecular weight of at least about 10,000; (b) about 0.05 to 5 wt. % of at least one member selected from the group consisting of zwitterionic surfactants and non-ionic amphiphiles; (c) about 0.5 to 20 wt. % of 1,5-pentanediol; and (d) the balance water.
Claim 10
Dependent Claim
31 words
The ink-set of claim 8 wherein said high molecular weight polysaccharide is selected from the group consisting of alginic acid, mannomuronic acid, carrageenan, guar and xanthan gums, dextran, chitin, and chitosan.
Claim 11
Dependent Claim
24 words
The ink-set of claim 9 wherein said alginic acid is present as a salt thereof, having a molecular weight of about 12,000 to 80,000.
Claim 12
Dependent Claim
18 words
The ink-set of claim 9 wherein said carrageenan has a molecular weight ranging from about 300,000 to 500,000.
Claim 13
Dependent Claim
40 words
The ink-set of claim 8 wherein said amphoteric surfactants are pH-sensitive surfactants selected from the group consisting of N,N-dimethyl-N-dodecyl amine oxide, N,N-dimethyl-N-tetradecyl amine oxide, N,N-dimethyl-N-hexadecyl amine oxide, N,N-dimethyl-N-octadecyl amine oxide, N,N-dimethyl-N-(Z-9-octadecenyl)-N-amine oxide, N-dodecyl-N,N-dimethyl glycine, and an acetylenic polyethylene oxide surfactant.
Claim 14
Dependent Claim
50 words
The ink-set of claim 8 wherein said vehicle consists essentially of: about 0.05 to 0.3% sodium alginate; about 0.05 to 1.1% N,N-dimethyl-N-(Z-9-octadecenyl)-N-amine oxide; about 0.1 to 2.35wt. % of an acetylenic polyethylene oxide surfactant; about 0.1 to 0.4wt. % biocide; about 4 to 9.4wt. % 1,5-pentanediol; and the balance water.
Claim 15
Dependent Claim
41 words
The ink-set of claim 13 wherein said vehicle consists essentially of: about 0.28wt. % sodium alginate; about 1.01% N,N-dimethyl-N-(Z-9-octadecenyl)-N-amine oxide; about 2.24wt. % of an acetylenic polyethylene oxide surfactant; about 0.3wt. % biocide; about 8.96wt. % 1,5-pentanediol; and the balance water.
Claim 16
Dependent Claim
25 words
An improved ink-jet dye-set for ink-jet printing including (a) a mixture of Acid Yellow 23 and Direct Yellow 86 and (b) a xanthene magenta dye.
Claim 17
Dependent Claim
25 words
An improved ink-jet dye-set for ink-jet printing including (a) a mixture of Acid Yellow 23 and Direct Yellow 86 and (b) a xanthene magenta dye.
Claim 18
Dependent Claim
27 words
The dye-set of claim 15 wherein said mixture of Acid Yellow 23 and Direct Yellow 86 ranges in a ratio from about 40:60 to 60:40 of AY23:DY86.
Claim 19
Dependent Claim
11 words
The dye-set of claim 16 wherein said ratio is about 50:50.
Claim 20
Dependent Claim
18 words
The dye-set of claim 15, wherein both Acid Yellow 23 and Direct Yellow 86 dyes include tetramethylammonium counter-ion.
Claim 21
Dependent Claim
25 words
The dye-set of claim 15 wherein said xanthene magenta dye is selected from the group consisting of Acid Red 52 and Acid Red 289 dyes.
Claim 22
Dependent Claim
28 words
An improved ink-jet dye-set for ink-jet printing including a mixture of Acid Blue 9 and a copper phthalocyanine dye containing not more than about 25wt. % copper phthalocyanine.
Claim 23
Dependent Claim
28 words
An improved ink-jet dye-set for ink-jet printing including a mixture of Acid Blue 9 and a copper phthalocyanine dye containing not more than about 25wt. % copper phthalocyanine.
Claim 24
Dependent Claim
24 words
The dye-set of claim 20 wherein said copper phthalocyanine dye is selected from the group consisting of Direct Blue 86 and Direct Blue 199.
Claim 25
Dependent Claim
13 words
The dye-set of claim 20, wherein said copper phthalocyanine dye includes lithium counter-ion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-04-28 | 1995-10-28 | 1996-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-28 | 1999-10-28 | 2000-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-28 | 2003-10-28 | 2004-04-28 | $7700.00 | Window Closed / Lapsed |