US4881942A
Expired / Lapsed
US
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Coloration process for cellulose polyester textile blends with a reactive dye container a quaternary nitrogen substituent (e.g. nicotinic acid) and a disperse dye
Assignee: Syngenta Ltd
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Filing: 1988-07-07
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Granted: 1989-11-21
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Expires: 2008-07-07
Abstract
Abstract A process for the coloration of a union of polyester and cellulosic textile materials which comprises applying thereto a liquor or paste containing a disperse dye and a dye containing a cellulose reactive group having a quaternary nitrogen substituent, or the precursors of such a dye, and thereafter heating the textile material at such a temperature and for such a period as to fix the dye on the textile material, characterized in that the pH of the liquor or paste is from 5.8 to 8.0.
Inventors
- 👤 Herbert G. Connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:37
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/04; C09B62/043; D; D06; D06P; D06P3/00; D06P3/82; D06P3/8204; D06P3/8223; D06P3/8238; D06P3/8252; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
97 words
A process for the coloration of a union of polyester and cellulose textile materials which comprises applying thereto a dye liquor or print paste containing a disperse dye and a dye containing a cellulose reactive group having a quaternary nitrogen substituent, or the precursors of such a dye, and thereafter heating the textile material at a temperature in the range from 160° to 250° C. to fix the dye on the textile material, the pH of the liquor or paste being in the range from 5.8 to 8.0 due to the presence of an alkaline agent therein.
Claim 2
Dependent Claim
97 words
A process for the coloration of a union of polyester and cellulose textile materials which comprises applying thereto a dye liquor or print paste containing a disperse dye and a dye containing a cellulose reactive group having a quaternary nitrogen substituent, or the precursors of such a dye, and thereafter heating the textile material at a temperature in the range from 160° to 250° C. to fix the dye on the textile material, the pH of the liquor or paste being in the range from 5.8 to 8.0 due to the presence of an alkaline agent therein.
Claim 3
Dependent Claim
56 words
A process according to claim 1 wherein the cellulose reactive group is a triazinyl group of the formula: ##STR10## in which Q represents a group of the formula: ##STR11## wherein A - is an anion and R 1 , R 2 and R 3 are organic radicals or form part of an aromatic or non-aromatic ring.
Claim 4
Dependent Claim
66 words
A process according to claim 1 wherein the dye containing a cellulose reactive group has the general formula: ##STR12## wherein Ch is a chromophoric group; B is an inert substituent; and Q represents a group of the formula: ##STR13## wherein A - is an anion and R 1 , R 2 and R 3 are organic radicals or form part of an aromatic or non-aromatic ring.
Claim 5
Dependent Claim
83 words
A process according to claim 1 wherein the dye containing a cellulose reactive group has the formula: ##STR14## wherein D is a diamino group derived from a diamine, DH 2 ; E represents either an inert substituent or a chromophoric group; and Ch is a chromophoric group and Q represents a group of the formula: ##STR15## wherein A - is an anion and R 1 , R 2 and R 3 are organic radicals or form part of an aromatic or non-aromatic ring.
Claim 6
Dependent Claim
31 words
A process according to any of claims 2 to 4 wherein Q is a group of the formula: ##STR16## wherein m is 0 or 1 and n is 1 or 2.
Claim 7
Dependent Claim
30 words
A process according to claim 5 wherein Q is a group of the formula: ##STR17## wherein the carboxy group is in the 3- or 4-position relative to the quaternary nitrogen.
Claim 8
Dependent Claim
25 words
A process according to any of the preceding claims wherein the disperse dye is removable from the cellulosic textile material by a simple alkaline wash.
Claim 9
Dependent Claim
21 words
A process according to any of the preceding claims wherein the pH of the liquor or paste is at least 6.0.
Claim 10
Dependent Claim
21 words
A process according to claim 8 wherein the pH of the liquor or paste is in the range 6.5 to 7.6.
Claim 11
Dependent Claim
21 words
A process according to claim 9 wherein the pH of the liquor or paste is in the range 6.9 to 7.6.
Claim 12
Dependent Claim
16 words
A process according to any of the preceding claims wherein the liquor or paste contains urea.
References Cited (Backward Citations)
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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) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |