US4052156A
Expired / Lapsed
US
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Process for the continuous dyeing of wool with methyl taurino-ethylsulfone dyes
Assignee: Hoechst AG
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Filing: 1974-08-06
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Granted: 1977-10-04
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Expires: 1994-08-06
Abstract
Abstract A process for the continuous dyeing of textile materials consisting of or containing wool with reactive dyestuffs according to a steam fixation method, by impregnating the fibrous material at pH values of from 6.5 to 7.5 with an aqueous liquor containing reactive dyestuffs of the methyltaurino-ethyl-sulphone type, and fixing the dyestuff without intermediate drying of the material by treating with saturated or largely saturated steam at temperatures of from 110° to 120° C.
Inventors
- 👤 Hans-Ulrich von der Eltz
- 👤 Joachim Walter Lehmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:55
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/10; D06P3/82; D06P3/8204; D06P3/8214; Y; Y10; Y10S; Y10S8/00; Y10S8/904; Y10S8/907; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
74 words
A process for the continuous dyeing of textile materials consisting of or containing wool with a reactive dyestuff according to a steam fixation method which comprises impregnating the fibrous material at pH values of from 6.5 to 7.5 with an aqueous liquor containing a reactive dyestuff which contains a methyltaurino-ethylsulphone group, and fixing the dyestuff without intermediate drying of the material by treating with saturated steam at temmperatures of from 110° to 120° C.
Claim 2
Dependent Claim
74 words
A process for the continuous dyeing of textile materials consisting of or containing wool with a reactive dyestuff according to a steam fixation method which comprises impregnating the fibrous material at pH values of from 6.5 to 7.5 with an aqueous liquor containing a reactive dyestuff which contains a methyltaurino-ethylsulphone group, and fixing the dyestuff without intermediate drying of the material by treating with saturated steam at temmperatures of from 110° to 120° C.
Claim 3
Dependent Claim
19 words
A process as claimed in claim 1, wherein blends of wool and polyester fibers are dyed as textile material.
Claim 4
Dependent Claim
37 words
A process as claimed in claim 2, wherein the padding liquors contain besides the reactive dyestuffs disperse dyestuffs and wherein the steam operation is followed by a dry heat treatment in order to fix the disperse dyestuffs.
References Cited (Backward Citations)
CA611482A
Cited
US3326887A
Cited
US3185538A
Cited
FR1544583A
Cited
US3671181A
Cited
US3652200A
Cited
US3792975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |