Laundry detergent compositions

Details Laundry detergent compositions Laundry detergent compositions

C - Chemistry, Metallurgy

11

D

C11D 3/42 (2006.01) C11D 3/00 (2006.01) C11D 3/02 (2006.01) C11D 3/06 (2006.01) C11D 3/33 (2006.01) C11D 3/37 (2006.01) C11D 3/39 (2006.01)

Patent

CA 2456101

A detergent composition which comprises: a surfactant, a builder, a fluorescer; one or more of a bleach precursor which is preferably N,N,N'N'- tetra-acetyl ethylene diamine or sodium nonanoyloxy benzene sulphonate, one or more of a hydrogen peroxide source which is preferably an alkali metal perborate or percarbonate. Optionally it comprises a nitrogen-containing dye binding polymer selected from polymers and co-polymers of vinyl-pyrrolidone, vinyl-pyridine N-oxide, and vinyl-imidazole, and mixtures thereof. The composition is essentially free of copper binding species, other than those which are deactivated by calcium salts.

L'invention concerne une composition détergente contenant : un tensioactif, un adjuvant, un agent de fluorescence, un ou plusieurs précurseurs de blanchiment tels que, de préférence, N,N,N'N'-tétra-acétyléthylènediamine ou nonanoyloxybenzènesulfonate de sodium, et une ou plusieurs sources de peroxyde d'hydrogène telles que, de préférence, un perborate ou percarbonate de métal alcalin. Cette composition comprend éventuellement un polymère azoté de liaison à la teinture, sélectionné parmi des polymères et copolymères de vinylpyrrolidone, de vinylpyridine N-oxyde et de vinylimidazole et des mélanges de ces derniers. Cette composition est sensiblement exempte d'espèces de liaison au cuivre autres que celles désactivées par des sels de calcium.

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