Patent US3940247A successfully refreshed from Google Patents.
US3940247A
Expired / Lapsed
US
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Dye migration control with amine salt of poly(vinyl methyl ether/maleic acid)
Assignee: ISP Investments LLC
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Filing: 1973-12-03
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Granted: 1976-02-24
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Expires: 1993-12-03
Abstract
Abstract In the Thermosol and like processes in which a dye-impregnated textile material is dried prior to fixation, uncontrolled migration of the dye to the surface of the material during the drying operation is obviated by the incorporation of an antimigration additive in the aqueous dye bath liquid, said additive being an amine salt of poly(vinyl methyl ether/maleic acid). The parent poly(vinyl methyl ether/maleic anhydride) from which the said poly(vinyl methyl ether/maleic acid) is prepared by hydrolysis has a specific viscosity of about 0.75 to about 4.5, preferably about 1.0 to 3.5, more preferably from about 2.0 to about 3.5, measured at a concentration of 1 gram of said parent polymer per 100 ml. of methylethyl ketone at 25°C. The additive, employed within the general range of from about 0.05% to about 0.50% by weight based on the total weight of the dye bath, serves to enhance the uniformity of the dyeing operation and the color properties of the dyed textile material.
Inventors
- 👤 Derwin Sthare
- 👤 Richard F. Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:58
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5207; D06P1/525; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/92; Y10S8/922; Y10S8/927
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
227 words
In an aqueous dye bath liquid suitable for the impregnating of textile material with said dye, with subsequent drying prior to the fixing of said dye, the improvement comprising the incorporation in said dye bath of a polymeric antimigration additive in an amount within the range of from about 0.05% to about 0.50% by weight, based on the total weight of said dye bath, said additive being the amine salt of poly(vinyl methyl ether/maleic acid) having the unit structural formula: ##EQU2## where x is from 0.5 to 2.0, R 1 , R 2 and R 3 each being taken from the group consisting of H, CH 3 , CH 2 CH 3 , CH(CH 3 ) 2 , CH 2 CH 2 CH 3 , CH 2 CH 2 OH and CH 2 CHOHCH 3 , with the exception that R 1 , R 2 and R 3 are not all H and that R 1 and R 2 together may be a divalent unit taken from the group consisting of--(CH 2 ) 4-6 and (--CH 2 CH 2 ) 2 O, the presence of said additive serving to minimize uncontrolled dye migration to the surface of the dye-impregnated textile material during the drying of said material prior to fixing, thus enhancing the uniformity of the dyeing operation and the color properties of the dyed textile material.
Claim 2
Dependent Claim
227 words
In an aqueous dye bath liquid suitable for the impregnating of textile material with said dye, with subsequent drying prior to the fixing of said dye, the improvement comprising the incorporation in said dye bath of a polymeric antimigration additive in an amount within the range of from about 0.05% to about 0.50% by weight, based on the total weight of said dye bath, said additive being the amine salt of poly(vinyl methyl ether/maleic acid) having the unit structural formula: ##EQU2## where x is from 0.5 to 2.0, R 1 , R 2 and R 3 each being taken from the group consisting of H, CH 3 , CH 2 CH 3 , CH(CH 3 ) 2 , CH 2 CH 2 CH 3 , CH 2 CH 2 OH and CH 2 CHOHCH 3 , with the exception that R 1 , R 2 and R 3 are not all H and that R 1 and R 2 together may be a divalent unit taken from the group consisting of--(CH 2 ) 4-6 and (--CH 2 CH 2 ) 2 O, the presence of said additive serving to minimize uncontrolled dye migration to the surface of the dye-impregnated textile material during the drying of said material prior to fixing, thus enhancing the uniformity of the dyeing operation and the color properties of the dyed textile material.
Claim 3
Dependent Claim
16 words
The aqueous dye bath liquid of claim 1 in which x is from 1.0 to 1.25.
Claim 4
Dependent Claim
38 words
The aqueous dye bath liquid of claim 1 in which said additive is present in an amount within the range of from about 0.10% to about 0.25% by weight based on the total weight of said dye bath.
Claim 5
Dependent Claim
15 words
The aqueous dye bath liquid of claim 1 in which said amine is trimethyl amine.
Claim 6
Dependent Claim
14 words
The aqueous dye bath liquid of claim 1 in which said amine is monoethanolamine.
Claim 7
Dependent Claim
121 words
A process for the dyeing of textile materials essentially without uncontrolled migration of the dye to the surface of the material during the drying of the impregnated material prior to dye fixation, consisting essentially of: a. impregnating the textile material being treated with an improved aqueous dye bath liquid as defined in claim 1; b. heating said dye-impregnated textile material to remove aqueous dye bath liquid therefrom, thus drying said material; and c. fixing said dye present in said dried, dye-impregnated textile material, whereby the antimigration additive serves to minimize uncontrolled dye migration to the surface of the textile material during said drying operation, thus enhancing the uniformity of the dyeing operation and the color properties of the dyed textile material.
Claim 8
Dependent Claim
13 words
The process of claim 6 in which x is from 1.0 to 1.25.
Claim 9
Dependent Claim
35 words
The process of claim 6 in which said additive is present in an amount within the range of from about 0.10% to about 0.25% by weight based on the total weight of said dye bath.
Claim 10
Dependent Claim
12 words
The process of claim 6 in which said amine is trimethyl amine.
Claim 11
Dependent Claim
11 words
The process of claim 6 in which said amine is monoethanolamine.
Claim 12
Dependent Claim
25 words
The process of claim 6 in which said textile material being treated is taken from the group consisting of cotton, polyester and cotton-polyester blend fabrics.
References Cited (Backward Citations)
US1976679A
Cited
GB871193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |