Process for treating textile materials
AssigneeCiba Specialty Chemicals Corporation
InventorsMenno Hazenkamp, Frank Bachmann, Cornelia Makowka, Marie-Josée Dubs, Grit Richter, Gunther Schlingloff, Josef Dannacher, Peter Weingartner
Life of this patent
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Abstract
The inventions is drawn to mixtures of manganese complexes and organic ligands which significantly improve the bleaching effect of hydrogen peroxide in washing liquours and prevent the reabsorption of migrating dyes in peroxide-containing washing liquors.
Claims11
A process for washing and cleaning as well as for preventing the reabsorption of migrating dyes in a washing liquor, which process comprises adding to a washing liquor which comprises a peroxide-containing washing agent, 0.5 to 150 mg per liter of the washing liquor of a mixture consisting of 2 to 85% by weight of a manganese complex which is a compound of formula
- wherein
- A is an anion;
- n is 0, 1, 2 or 3,
- m is 0, 1, 2 or 3,
- R4 is hydrogen or linear or branched C1-C4alkyl,
- R8 is hydrogen or linear or branched C1-C4alkyl,
- Y is a linear or branched alkylene radical of formula —[C(R4)2]r—, wherein r is an integer from 1 to 8 and the R4 groups have each independently of one another the meanings cited above;
- —CX═CX—, wherein X is cyano, linear or branched C1-C8alkyl or di(linear or branched C1-C8alkyl)amino,
- —(CH2)q—NR4—(CH2)q—, wherein R4 has the meaning cited above, and q is 1, 2, 3 or 4;
- or
- a 1,2-cyclohexylene radical of formula:
- or a 1,2-aryl radical of formula
- wherein
- R9 is hydrogen, SO3H, CH2OH or CH2NH2,
- R and R1 are each independently of the other cyano, halogen, OR4 or COOR4, wherein R4 has the meaning cited above, nitro, linear or branched C1-C8alkyl, linear or branched partially fluorinated or perfluorinated C1-C8alkyl, NR5R6, wherein R5 and R6 are identical or different and are each hydrogen or linear or branched C1-C12alkyl, or linear or branched C1-C8alkyl-R7, wherein R7 is NH2, OR4, COOR4 or NR5R6, which have the meanings cited above, or —CH2—N⊕R4R6R7, or —N⊕R4R5R6, wherein R4, R5 and R5 have the meanings cited above,
- R2 and R3 are each independently of the other hydrogen, linear or branched C1-C4alkyl or unsubstituted aryl, or aryl which is substituted by cyano, halogen, OR4or COOR4, wherein R4 is hydrogen or linear or branched C1-C4alkyl, by nitro, linear or branched C1-C8alkyl, NHR5 or NR5R6;
- wherein R5 and R6 are identical or different and are each hydrogen or linear or branched C1-C12alkyl, or by linear or branched C1-C8alkyl-R7, wherein R7 is NH2, OR4, COOR4 or NR5R6, which have the meanings cited above, or by —N⊕R4R5B6, wherein R4, R5 and R6 have the meanings cited above, and 98 to 15% by weight of an organic ligand of the formula
- wherein R, R1, R2, R3, R8, Y, n and m are as defined above, the percentages being based on the entire weight of the mixture.
Dependencies are inferred from the claim text.