Treatments to improve the properties of keratinous textiles
AssigneeCommonwealth Scientific and Industrial Research Organization
InventorsPeter R. Brady, Peter G. Cookson, Keith W. Fincher, John R. Cook
Life of this patent
Estimating the term…
Abstract
A method of processing a textile material consisting wholly or partly of keratinous fibres, characterised in that the material is treated with an aqueous composition containing at least one compound which possesses one or more ethylenic double bonds activated by two adjacent carbonyl groups. Preferred compounds include fumaric acid or maleic acid, optionally substituted with one or two halo and/or alkyl groups; or a salt, ester or amide of any said acid; or an N-substituted maleimide, optionally substituted with one or two halo and/or alkyl groups.
Claims17
A method of processing a textile material consisting wholly or partly of keratinous fibres to reduce the harmful effects of dyeing said keratinous fibers, characterized in that the material is contacted with an aqueous composition consisting essentially of at least one compound selected from the group consisting of a salt, ester and amide of maleic acid or fumaric acid, said salt, ester or amide having one of the following formulae:
- a) M.sub.1 O.O.dbd.C--CX.dbd.CY--C.dbd.O.OR.sub.5 ;
- b) M.sub.1 O.O.dbd.C--CX.dbd.CY--C.dbd.O.OR.sub.7 O.O.dbd.C--CX.dbd.CY --C.dbd.O.OM.sub.2 ;
- c) R.sub.10 R.sub.11 N.O.dbd.C--CX.dbd.CY--C.dbd.O.NR.sub.10 R.sub.11 ;
- d) M.sub.1 O.O.dbd.C--CX.dbd.CY--C.dbd.O.N(R.sub.10).R.sub.7 N(R.sub.11).O.dbd.C--CX.dbd.CY--C.dbd.O.OM.sub.2 ;
- e) M.sub.1 O.O.dbd.C--CX.dbd.CY--C.dbd.O.N(CH.sub.2 CH.sub.2) .sub.2 N.O.dbd.C--CX.dbd.CY--C.dbd.O.OM.sub.2 ;
- f) M.sub.1 O.O.dbd.C--CX.dbd.CY--C.dbd.O.NR.sub.10 R.sub.11 ;
- or
- g) M.sub.1 O.O.dbd.C--CX.dbd.CY--C.dbd.O.N(R.sub.10)R.sub.7 O.O.dbd.C--CX.dbd.CY--C.dbd.O.OM.sub.2
- where
- X and Y are the same or different and each is a hydrogen atom, a halogen atom or an alkyl group containing from 1 to 12 carbon atoms;
- M.sub.1 and M.sub.2 are the same or different and each is (1) hydrogen;
- (2) an alkali, alkaline earth or transition metal;
- or (3) an ammonium ion, or a substituted ammonium ion of the formula R.sub.1 R.sub.2 R.sub.3 R.sub.4 N.sup.+, where R.sub.1, R.sub.2, R.sub.3, R.sub.4 are the same or different and each is hydrogen or an alkyl group having from 1 to 18 carbon atoms or aryl group having from 6 to 18 carbon atoms, or where any two or more of the groups R.sub.1, R.sub.2, R.sub.3, R.sub.4 , form part of a heterocyclic ring;
- R.sub.5 is selected from the group consisting of methyl, ethyl, n-butyl, 2-butyl, iso-butyl, n-hexyl, cyclohexyl, phenyl, p-sulphophenyl, p-nitrophenyl, benzyl, 2-ethylhexyl, n-octyl, decyl, lauryl, oleyl, and stearyl;
- R.sub.7 is (1) a straight or branched chain aliphatic group containing from 1 to 12 carbon atoms;
- or (2) an arylene group;
- and R.sub.10 and R.sub.11 are the same or different and each is hydrogen, an alkyl group containing up to 18 carbon atoms, phenyl, p-sulphophenyl, p-nitrophenyl, benzyl, or oleyl, wherein said material is contacted with said aqueous composition simultaneous with or prior to dyeing of said keratinous fibers.
A method as claimed in claim 1, wherein the compound has one of the following formulae
- c) R.sub.10 R.sub.11 N.O.dbd.C--CX.dbd.CY--C.dbd.O.NR.sub.10 R.sub.11 ;
- d) M.sub.1 O.O.dbd.C--CX.dbd.CY--C.dbd.O.N(R.sub.10).R.sub.7 N(R.sub.11).O.dbd.C--CX.dbd.CY--C.dbd.O.OM.sub.2 ;
- e) M.sub.1 O.O.dbd.C--CX.dbd.CY--C.dbd.O.N(CH.sub.2 CH.sub.2).sub.2 N.O.dbd.C--CX.dbd.CY--C.dbd.O.OM.sub.2 ;
- or
- f) M.sub.1 O.O.dbd.C--CX.dbd.CY--C.dbd.O.NR.sub.10 R.sub.11 wherein X, Y, M.sub.1, M.sub.2, R.sub.7, R.sub.10 and R.sub.11 are as defined in claim 16.
A method as claimed in claim 7 or claim 2, wherein X and Y are independently hydrogen or chlorine atom, or a methyl or octyl group.
Dependencies are inferred from the claim text.