Patent US3884626A successfully refreshed from Google Patents.
US3884626A
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Process for the dyeing of textile material containing amino or amide groups
Assignee: Novartis AG
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Filing: 1973-04-06
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Granted: 1975-05-20
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Expires: 1993-04-06
Abstract
Abstract A process for the dyeing of textile material containing amino or amide groups, especially polyamide such as nylon is disclosed which comprises dyeing said material in a homogeneous solution of one or several water-soluble reactive dyestuffs, in a mixture of a chlorinated aliphatic hydrocarbon, especially trichloroethylene or perchloroethylene, with up to 50 percent of a hydrophilic solvent, especially N,N-dimethylformamide, during about 30 to 50 minutes at a dyeing temperature of about 40* to 130*C. The thus obtained dyeings have excellent fastness properties and the procedure is characterised in shortening the dyeing time compared with the conventional dyeing process.
Inventors
- 👤 Hansruedi Hoster
- 👤 Branimir Milicevic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:35
CPC Classifications
C; C09; C09B; C09B62/00; D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/922; D06P1/924; D06P1/928; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/92; Y10S8/924
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
79 words
A PROCESS FOR THE DYEING OF A TEXTILE MATERIAL CONTAINING AMINO OR AMIDE GROUPS, WHICH CONSISTS ESSENTIALLY OF PERFORMING THE DYEING BY EXHAUST DYEING IN A HOMOGENEOUS SOLUTION OF ONE OR SEVERAL DYESTUFFS, EACH OF SAID DYESTUFFS CONTAINING AT LEAST ONE FREE SULPHONIC ACID GROUP AND AT LEAST ONE FIBERREACTIVE GROUP IN A SOLVENT MIXTURE CONSISTING ESSENTIALLY OF 98 TO 60 PERCENT BY WEIGHT CHLORINATED ALIPHATIC HYDROCARBON, ADMIXED WITH 2 TO 50 PERCENT BY WEIGHT OF A HYDROPHILLIC SOLVENT.
Claim 2
Dependent Claim
79 words
A PROCESS FOR THE DYEING OF A TEXTILE MATERIAL CONTAINING AMINO OR AMIDE GROUPS, WHICH CONSISTS ESSENTIALLY OF PERFORMING THE DYEING BY EXHAUST DYEING IN A HOMOGENEOUS SOLUTION OF ONE OR SEVERAL DYESTUFFS, EACH OF SAID DYESTUFFS CONTAINING AT LEAST ONE FREE SULPHONIC ACID GROUP AND AT LEAST ONE FIBERREACTIVE GROUP IN A SOLVENT MIXTURE CONSISTING ESSENTIALLY OF 98 TO 60 PERCENT BY WEIGHT CHLORINATED ALIPHATIC HYDROCARBON, ADMIXED WITH 2 TO 50 PERCENT BY WEIGHT OF A HYDROPHILLIC SOLVENT.
Claim 3
Dependent Claim
20 words
A process according to claim 1 wherein the dyeing is performed at the boiling point of the organic solvent mixture.
Claim 4
Dependent Claim
34 words
A process according to claim 1 wherein the mixture of organic solvents contains 98 to 60 percent by weight of chlorinated aliphatic hydrocarbon and 2 to 40 percent by weight of a hydrophilic solvent.
Claim 5
Dependent Claim
16 words
A process according to claim 1 wherein perchloroethylene is used in admixture with a hydrophilic solvent.
Claim 6
Dependent Claim
32 words
A process according to claim 1 wherein the solvent mixture employed is the amide or lactam of a lower fatty acid, especially N,N-dimethylacetamide or N,N-dimethylformamide in admixture with a chlorinated aliphatic hydrocarbon.
Claim 7
Dependent Claim
20 words
A process according to claim 1 wherein the mixture of solvents used is: perchloroethylene/N,N-dimethylformamide, trichloroethylene/N,N-dimethylformamide, perchloroethylene/N,N-dimethylacetamide or perchloroethylene/N-hexamethylphosphoric acid triamide.
Claim 8
Dependent Claim
14 words
A process according to claim 1 wherein natural or synthetic polyamide materials are dyed.
Claim 9
Dependent Claim
10 words
A process according to claim 7 wherein wool is dyed.
Claim 10
Dependent Claim
12 words
A process according to claim 7 wherein synthetic polyamide material is dyed.
Claim 11
Dependent Claim
10 words
The dyed textile material obtained by the process of claim
Claim 12
Dependent Claim
34 words
A process according to claim 3 wherein the mixture of organic solvents contains 97 to 70 percent by weight of chlorinated aliphatic hydrocarbon and 3 to 30 percent by weight of a hydrophilic component.
Claim 13
Dependent Claim
26 words
A process according to claim 1 wherein the sulphonic acid groups containing dyestuffs contain as the fiber-reactive radical a radical of a halogenated C1-4 fatty acid.
Claim 14
Dependent Claim
19 words
A process according to claim 12 wherein the chlorinated aliphatic hydrocarbon is perchloroethylene and the hydrophilic solvent is N,N-dimethylformamide.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |