Patent US3749398A successfully refreshed from Google Patents.
US4417898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous dyeing process which provides improved wetfastness: alkandlamine-containing dye liquor and after-treatment with fixing agent
Assignee: Fidelity Union Bank
•
Filing: 1982-09-08
•
Granted: 1983-11-29
•
Expires: 2002-09-08
Abstract
Abstract The invention relates to a process for continuous dyeing a cellulosic fibrous substrate with a direct or reactive dye comprising the steps of (a) applying to the substrate an aqueous dyeing liquor containing an alkanolamine, followed by (b) fixing the dyeings, and finally (c) after-treating the dyed substrate with a fixing agent, the resulting dyeings having improved wet fastnesses.
Inventors
- 👤 Rolf Hasler
- 👤 Francis Palacin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:37
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/645; D06P3/00; D06P3/58; D06P3/60; D06P3/62; D06P3/66; D06P5/00; D06P5/02; D06P5/04; D06P5/08; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
141 words
A process for continuous dyeing a cellulosic fibrous substrate with a direct or reactive dye comprising the steps of (a) applying to the substrate an aqueous dyeing liquor containing a direct or reactive dye and an alkanolamine, followed by (b) fixing the dyeings, and finally (c) after-treating the dyed substrate with a fixing agent comprising a precondensate or mixture of either (A) the product of reacting a mono- or polyfunctional primary or secondary amine with cyanamide, dicyandiamide, guanidine or bisguanidine; or ammonia with cyanamide or dicyandiamide, said product (A) containing reactive hydrogen atoms bound to nitrogen, or (B) a quaternary polyalkylene polyamine containing reactive hydroxy or amino groups with (C) an N-methylol derivative of a urea, melamine, guanamine, triazinone, urone, carbamate or acid amide, optionally together with (D) a catalyst for the crosslinking of N-methylol compounds of the type (C) above.
Claim 2
Dependent Claim
141 words
A process for continuous dyeing a cellulosic fibrous substrate with a direct or reactive dye comprising the steps of (a) applying to the substrate an aqueous dyeing liquor containing a direct or reactive dye and an alkanolamine, followed by (b) fixing the dyeings, and finally (c) after-treating the dyed substrate with a fixing agent comprising a precondensate or mixture of either (A) the product of reacting a mono- or polyfunctional primary or secondary amine with cyanamide, dicyandiamide, guanidine or bisguanidine; or ammonia with cyanamide or dicyandiamide, said product (A) containing reactive hydrogen atoms bound to nitrogen, or (B) a quaternary polyalkylene polyamine containing reactive hydroxy or amino groups with (C) an N-methylol derivative of a urea, melamine, guanamine, triazinone, urone, carbamate or acid amide, optionally together with (D) a catalyst for the crosslinking of N-methylol compounds of the type (C) above.
Claim 3
Dependent Claim
150 words
A process according to claim 1, wherein the dyeing liquor used in step (a) contains an alkanolamine of formula I ##STR2## wherein n is 2 or 3 m is 0 or 1 and each R 1 , R 2 , R 3 and R 4 , independently is H, CH 3 , C 2 H 5 , --CH 2 CH 2 CH 2 OH, --CH 2 --CHOH--CH 3 , --CR 5 R 6 CH 2 OH or --CR 5 R 6 --CH 2 --O--CR 5 R 6 --CH 2 OH wherein each R 5 and R 6 , independently is H or CH 3 with the proviso that the molecule contains at least one group selected from --CH 2 --CH 2 --CH 2 OH, --CH 2 --CHOH--CH 3 , --CR 5 R 6 --CH 2 OH and --CR 5 R 6 --CH 2 --O--CR 5 R 6 --CH 2 OH.
Claim 4
Dependent Claim
25 words
A process according to claim 1, wherein the alkanolamine is selected from monoethanolamine, diethanolamine, triethanolamine, diethylethanolamine, n-propanolamine, iso-propanolamine, triisopropanolamine, diglycolamine and N-(β-hydroxyethyl)-ethylenediamine, and mixtures thereof.
Claim 5
Dependent Claim
22 words
A process according to claim 1, wherein the dyeing liquor used in step (a) contains from 0.1 to 50 g/l of alkanolamine.
Claim 6
Dependent Claim
15 words
A process according to claim 1, wherein the aqueous dyeing liquor contains a direct dye.
Claim 7
Dependent Claim
23 words
A process according to claim 1, wherein the dyeing liquor used in step (a) contains up to 200 g/l of a hydrotropic agent.
Claim 8
Dependent Claim
26 words
A process according to claim 1, wherein the dyeing liquor used in step (a) contains a wetting agent or a thickening agent or a mixture thereof.
Claim 9
Dependent Claim
59 words
A process according to claim 1, wherein in step (c) the substrate is after-treated with a precondensate of (i) the reaction product of diethylene triamine with dicyandiamide, said product containing reactive hydrogen atoms bound to nitrogen, with (ii) dimethyloldihydroxyethyleneurea in the presence of a catalyst for the crosslinking of N-methylol compounds of the type (ii), and then heat cured.
Claim 10
Dependent Claim
14 words
A process according to claim 1, wherein the catalyst for crosslinking is magnesium chloride.
Claim 11
Dependent Claim
21 words
A process according to claim 2 wherein the dyeing liquor used in step (a) contains 0.1 to 50 g/l of alkanolamine.
Claim 12
Dependent Claim
22 words
A process according to claim 3 wherein the dyeing liquor used in step (a) contains from 0.1 to 50 g/l of alkanolamine.
Claim 13
Dependent Claim
11 words
A process according to claim 3 wherein the alkanolamine is N-(β-hydroxyethyl)-ethylenediamine.
Claim 14
Dependent Claim
21 words
A process according to claim 2 wherein the dyeing liquor used in step (a) contains 1 to 10 g/l of alkanolamine.
Claim 15
Dependent Claim
21 words
A process according to claim 3 wherein the dyeing liquor used in step (a) contains 1 to 10 g/l of alkanolamine.
Claim 16
Dependent Claim
18 words
A process according to claim 10 wherein the dyeing liquor used in step (a) contains a direct dye.
Claim 17
Dependent Claim
15 words
A process according to claim 5 wherein the direct dye is a metal complex dye.
Claim 18
Dependent Claim
19 words
A process according to claim 14 wherein the dyeing liquor used in step (a) contains a metal complex dye.
Claim 19
Dependent Claim
59 words
A process according to claim 14, wherein in step (c) the substrate is after-treated with a precondensate of (i) the reaction product of diethylene triamine with dicyandiamide, said product containing reactive hydrogen atoms bound to nitrogen, with (ii) dimethyloldihydroxyethyleneurea in the presence of a catalyst for the crosslinking of N-methylol compounds of the type (ii), and then heat cured.
Claim 20
Dependent Claim
59 words
A process according to claim 15, wherein in step (c) the substrate is after-treated with a precondensate of (i) the reaction product of diethylene triamine with dicyandiamide, said product containing reactive hydrogen atoms bound to nitrogen, with (ii) dimethyloldihydroxyethyleneurea in the presence of a catalyst for the crosslinking of N-methylol compounds of the type (ii), and then heat cured.
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) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |