Peroxygen bleaching and compositions therefor

Details Peroxygen bleaching and compositions therefor Peroxygen bleaching and compositions therefor

D - Textiles, Paper

06

L

8/87

D06L 3/02 (2006.01) C11D 3/39 (2006.01) D06L 3/04 (2006.01)

Patent

CA 1111611

-1- ABSTRACT: A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an N-sulfonyl- imidazole of the formula Image wherein R2, R3 and R4 are each selected from the class consisting of hydrogen, halogen, alkoxy of 1 to 16 carbon atoms, carbonylmethoxy, nitro, an aliphatic hydrocarbon radical or 1 to 16 carbon atoms, a cyclo- aliphatic hydrocarbon radical of 3 to 7 carbon atoms, an aromatic hydrocarbon radical of the benzene and naphthalene series and a heterocyclic radical of 1 to 2 rings each containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the group con- sisting of nitrogen, oxygen and sulfur while taken together R3 and R4 can complete a benzene ring and R1 is a hydrocarbon or heterocyclic radical as above defined for R2, R3 and R4. Also described are dry blend compositions containing the bleach bath components.

310862

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