Patent US3785767A successfully refreshed from Google Patents.
US3785767A
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US
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Process for the continuous dyeing and printing of fibre materials containing ionic groups
Assignee: Bayer AG
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Filing: 1970-08-10
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Granted: 1974-01-15
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Expires: 1990-08-10
Abstract
Abstract Pad-steaming process for the continuous dyeing and printing of fibre materials containing ionic groups, from organic solvents, characterised in that the fibre materials are dyed or printed with chlorinated hydrocarbon dyeing baths containing ionic dyestuffs which have been rendered soluble in chlorinated hydrocarbons by the formation of salts or addition products with lipophilic compounds. With the new process, it is possible to produce on fibre materials containing ionic groups strong, level and well developed dyeings and prints in excellent yields.
Inventors
- 👤 D Hildebrand
- 👤 R Kuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:59
CPC Classifications
C; C09; C09B; C09B69/00; C09B69/02; D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/922; D06P1/924; D06P1/928; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/938
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
19 words
organic solvent said organic solvent consisting of a chlorinated hydrocarbon solvent having a boiling point between 40*C and 170*C;
Claim 2
Dependent Claim
23 words
The process of claim 1 in which the fiber material is subjected to an intermediate drying step before the steam treatment step (B).
Claim 3
Dependent Claim
27 words
The process of claim 1 in which the fiber material is rinsed with chlorinated hydrocarbon solvent to remove non-fixed dyestuff subsequent to the steam treatment step (B).
Claim 4
Dependent Claim
14 words
up to 10% by weight of water based on said chlorinated hydrocarbon solvent; and
Claim 5
Dependent Claim
38 words
0 to 5% by weight based on said chlorinated hydrocarbon solvent of an emulsifier which forms a thickened emulsion in the presence of water and chlorinated hydrocarbon solvent; B. subjecting the fiber material to a treatment with steam.
Claim 6
Dependent Claim
41 words
The process of claim 1 in which said fiber material is wool; synthetic polyamide, polyacrylonitrile containing anionic groups selected from sulfinic acid, sulfimide, carboxyl and phosphonic acid groups; polyesters with carboxyl or sulfonic acid groups; or polyamide with sulfonic acid groups.
Claim 7
Dependent Claim
37 words
The process of claim 1 in which the pad-liquor contains in addition to the amine salt or addition product (1) and the chlorinated hydrocarbon solvent (2); (3) an auxiliary which assists in the fixing of the dyestuff.
Claim 8
Dependent Claim
36 words
The process of claim 1 in which the pad-liquor contains in addition to the amine salt or addition product (1) and the chlorinated hydrocarbon solvent (2); (3) an auxiliary which improves the levelness of the dyeing.
Claim 9
Dependent Claim
46 words
The process of claim 1 in which the pad-liquor contains in addition to the amine salt or addition product (1) and the chlorinated hydrocarbon solvent (2); (3) 0.1 to 2 percent by weight of a lower carboxylic acid based on the weight of chlorinated hydrocarbon solvent.
Claim 10
Dependent Claim
10 words
The fiber material dyed by the process of claim 1.
References Cited (Backward Citations)
US2274751A
Cited
US2721111A
Cited
US3164449A
Cited
BE682830A
Cited
US3523749A
Cited
US3510243A
Cited
CH454084A
Cited
US3623834A
Cited
FR1581325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |