US4842646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substantive dyes, inks and dye baths
Assignee: SARANDA CONSOLIDATED A DE PARTNERSHIP LP
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Filing: 1986-09-23
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Granted: 1989-06-27
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Expires: 2006-09-23
Abstract
Abstract A dye composition comprising (a) a water insoluble nigrosine dye, induline dye or basic dye, (b) a water miscible solvent, and (c) a hydroxycarboxylic acid having at least three hydroxy groups is useful in preparing aqueous inks and dye baths. If desired, such baths may also include a mordant, a humectant and a corrosion inhibitor.
Inventors
- 👤 Rodger L. Gamblin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:46
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/03; C09D11/037; C09B; C09B67/00; C09B67/0071; C09B67/0075; C09B67/0076; D; D06; D06P; D06P1/00; D06P1/41; D06P1/44; D06P1/653; D06P1/6533
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
65 words
A dye comprising (a) about 0.0001 to about 15 parts by weight of a solubilized water insoluble nigrosine dye, induline dye or basic dye; (b) about 0.0001 to about 60 parts by weight of a water miscible solvent; and (c) about 0.0001 to about 60 parts by weight of a hydroxycarboxylic acid having at least three hydroxy groups and not more than six hydroxy groups.
Claim 2
Dependent Claim
65 words
A dye comprising (a) about 0.0001 to about 15 parts by weight of a solubilized water insoluble nigrosine dye, induline dye or basic dye; (b) about 0.0001 to about 60 parts by weight of a water miscible solvent; and (c) about 0.0001 to about 60 parts by weight of a hydroxycarboxylic acid having at least three hydroxy groups and not more than six hydroxy groups.
Claim 3
Dependent Claim
13 words
A dye according to claim 1, wherein the hydroxycarboxylic acid is gluconic acid.
Claim 4
Dependent Claim
84 words
An ink or dye bath comprising an aqueous solution that comprises: (a) about 0.0001 to about 15 parts by weight of a solubilized water insoluble nigrosine dye, induline dye or basic dye; (b) about 0.0001 to about 60 parts by weight of a water miscible solvent; (c) about 0.0001 to about 60 parts by weight of a hydroxycarboxylic acid having at least three hydroxy groups and not more than six hydroxy groups; and (d) about 25 to about 100 parts by weight of water.
Claim 5
Dependent Claim
84 words
An ink or dye bath comprising an aqueous solution that comprises: (a) about 0.0001 to about 15 parts by weight of a solubilized water insoluble nigrosine dye, induline dye or basic dye; (b) about 0.0001 to about 60 parts by weight of a water miscible solvent; (c) about 0.0001 to about 60 parts by weight of a hydroxycarboxylic acid having at least three hydroxy groups and not more than six hydroxy groups; and (d) about 25 to about 100 parts by weight of water.
Claim 6
Dependent Claim
16 words
An ink or dye bath according to claim 3, wherein the hydroxycarboxylic acid is gluconic acid.
Claim 7
Dependent Claim
42 words
An ink or dye bath according to claim 3, wherein the weight ratio of said hydroxycarboxylic acid to said water insoluble nigrosine dye, induline dye or basic dye is in the range of about 4 to 1 to about 0.5 to 1.
Claim 8
Dependent Claim
17 words
A ink or dye bath according to claim 5, wherein said ratio is about 1 to 1.
Claim 9
Dependent Claim
47 words
An ink or dye bath according to claim 3, said ink or dye bath comprising (a) a water insoluble nigrosine dye, induline dye or basic dye; (b) a water miscible solvent; (c) a hydroxycarboxylic acid having at least three hydroxy groups; (d) a mordant; and (e) water.
Claim 10
Dependent Claim
24 words
An ink or dye bath according to claim 7, wherein the mordant is selected from the group consisting of tannic acid and gallic acid.
Claim 11
Dependent Claim
16 words
An ink or dye bath according to claim 7, wherein the hydroxycarboxylic acid is gluconic acid.
Claim 12
Dependent Claim
18 words
An ink or dye bath according to claim 7, said ink or dye bath also comprising a humectant.
Claim 13
Dependent Claim
21 words
An ink or dye bath according to claim 7, said ink or dye bath also comprising at least one corrosion inhibitor.
Claim 14
Dependent Claim
42 words
An ink or dye bath according to claim 7, wherein the weight ratio of said hydroxycarboxylic acid to said water insoluble nigrosine dye, induline dye or basic dye is in the range of about 4 to 1 to about 0.5 to 1.
Claim 15
Dependent Claim
17 words
An ink or dye bath according to claim 12, wherein said ratio is about 1 to 1.
Claim 16
Dependent Claim
27 words
An ink or dye bath according to claim 7, said ink or dye bath also comprising about 0.0001 to about 30 parts by weight of a mordant.
Claim 17
Dependent Claim
23 words
An ink or dye bath according to claim 14, wherein the mordant is selected from the group consisting tannic acid and gallic acid.
Claim 18
Dependent Claim
16 words
An ink or dye bath according to claim 15, wherein the hydroxycarboxylic acid is gluconic acid.
Claim 19
Dependent Claim
16 words
An ink or dye bath according to claim 14, wherein the hydroxycarboxylic acid is gluconic acid.
References Cited (Backward Citations)
US590139A
Cited
US1787233A
Cited
US1905347A
Cited
US2022413A
Cited
US4101329A
Cited
US4156657A
Cited
US4159203A
Cited
US4421561A
Cited
US4624709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-26 | 1992-12-26 | 1993-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-26 | 1996-12-26 | 1997-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-26 | 2000-12-26 | 2001-06-27 | $7700.00 | Window Closed / Lapsed |