US4340388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing of textile materials
Assignee: Monsanto Co
•
Filing: 1981-07-10
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Granted: 1982-07-20
•
Expires: 2001-07-10
Abstract
Abstract Including an aminophosphonate and a hydroxyphosphonate in an aqueous bath in which a textile material is dyed with a water-insoluble (e.g. disperse) dye results in improved dyeing (uniformity, water-fastness, etc.) and, in dyeing of polyester fiber, eliminates the need for use of a swelling agent.
Inventors
- 👤 Xavier Kowalski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:39
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/667
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
89 words
In a process for dyeing textile material with a water-insoluble dye in an aqueous bath, the improvement which comprises including in said bath (a) aminophosphonate selected from the group consisting of aminotri(methylene phosphonic acid) and alkali metal salts thereof and (b) hydroxyphosphonate selected from the group consisting of 1-hydroxyethane-1,1-diphosphonic acid and alkali metal salts thereof in a combined amount sufficient to increase the uniformity of said dyeing and in a mole ratio of (b):(a) sufficient to increase said uniformity above that obtained with the same amount of (a) alone.
Claim 2
Dependent Claim
89 words
In a process for dyeing textile material with a water-insoluble dye in an aqueous bath, the improvement which comprises including in said bath (a) aminophosphonate selected from the group consisting of aminotri(methylene phosphonic acid) and alkali metal salts thereof and (b) hydroxyphosphonate selected from the group consisting of 1-hydroxyethane-1,1-diphosphonic acid and alkali metal salts thereof in a combined amount sufficient to increase the uniformity of said dyeing and in a mole ratio of (b):(a) sufficient to increase said uniformity above that obtained with the same amount of (a) alone.
Claim 3
Dependent Claim
16 words
The process improvement of claim 1 wherein said ratio is between about 0.5:1 and about 5:1.
Claim 4
Dependent Claim
26 words
The process improvement of claim 1 wherein the textile material comprises polyester, the dye comprises disperse dye and the dyeing is carried out above 100° C.
Claim 5
Dependent Claim
16 words
The process improvement of claim 3 wherein said ratio is between about 0.6:1 and about 4:1.
Claim 6
Dependent Claim
20 words
The process improvement of claim 3 wherein said dye is selected from the group consisting of azo and anthroquinone dyes.
Claim 7
Dependent Claim
60 words
A composition comprising a water-insoluble dye suitable for dyeing of textile material in an aqueous bath, (a) aminophosphonate selected from the group consisting of aminotri(methylene phosphonic acid) and alkali metal salts thereof and (b) hydroxyphosphonate selected from the group consisting of 1-hydroxyethane-1,1-diphosphonic acid and alkali metal salts thereof, the mole ratio of (b):(a) being between about 0.5:1 and about 5:1.
Claim 8
Dependent Claim
60 words
A composition comprising a water-insoluble dye suitable for dyeing of textile material in an aqueous bath, (a) aminophosphonate selected from the group consisting of aminotri(methylene phosphonic acid) and alkali metal salts thereof and (b) hydroxyphosphonate selected from the group consisting of 1-hydroxyethane-1,1-diphosphonic acid and alkali metal salts thereof, the mole ratio of (b):(a) being between about 0.5:1 and about 5:1.
Claim 9
Dependent Claim
26 words
A composition of claim 6 wherein (a) and (b) are present in a combined amount between about 5% and about 50% by weight of said dye.
Claim 10
Dependent Claim
19 words
A composition of claim 6 wherein said dye is selected from the group consisting of azo and anthroquinone dyes.
Claim 11
Dependent Claim
17 words
A composition of claim 6 wherein said dye comprises a disperse dye suitable for dyeing polyester fiber.
Claim 12
Dependent Claim
15 words
A composition of claim 9 wherein said ratio is between about 0.7:1 and about 3:1.
Claim 13
Independent Claim
71 words
A method for preparing a water-insoluble dye composition suitable for use in dyeing of textile material in an aqueous bath, which method comprises combining with said dye (a) aminophosphonate selected from the group consisting of aminotri(methylene phosphonic acid) and alkali metal salts thereof and (b) hydroxyphosphonate selected from the group consisting of 1-hydroxyethane-1,1-diphosphonic acid and alkali metal salts thereof in a mole ratio of (b):(a) between about 0.5:1 and about 5:1.
Claim 14
Independent Claim
71 words
A method for preparing a water-insoluble dye composition suitable for use in dyeing of textile material in an aqueous bath, which method comprises combining with said dye (a) aminophosphonate selected from the group consisting of aminotri(methylene phosphonic acid) and alkali metal salts thereof and (b) hydroxyphosphonate selected from the group consisting of 1-hydroxyethane-1,1-diphosphonic acid and alkali metal salts thereof in a mole ratio of (b):(a) between about 0.5:1 and about 5:1.
Claim 15
Dependent Claim
28 words
The method of claim 11 wherein (a) and (b) are combined with said dye in amounts totaling between about 5% and about 50% by weight of said dye.
Claim 16
Dependent Claim
17 words
The method of claim 11 wherein said dye comprises a disperse dye suitable for dyeing polyester fiber.
References Cited (Backward Citations)
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Cited
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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) | 1985-07-19 | 1986-01-18 | 1986-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-19 | 1990-01-18 | 1990-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-19 | 1994-01-18 | 1994-07-20 | $7700.00 | Window Closed / Lapsed |