Laundry composition comprising anionic sulphonate and...

C - Chemistry – Metallurgy – 11 – D

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C11D 1/94 (2006.01) C11D 1/14 (2006.01) C11D 1/22 (2006.01) C11D 1/90 (2006.01) C11D 11/00 (2006.01)

Patent

CA 2398939

Laundry detergent compositions giving improved oily soil detergency in the machine wash, especially on knitted cotton and knitted polyviscose fabrics, contain an anionic sulphonate surfactant and a zwitterionic betaine surfactant in a weight ratio of 2:1 to 99:1, preferably 3:1 to 25:1. The preferred anionic surfactant is linear alkylbenzene sulphonate and the preferred betaine surfactant is cocoamidopropyl betaine.

L'invention concerne des compositions détergentes pour lessive offrant une détergence améliorée contre les salissures grasses pendant le lavage machine, notamment pour les tissus en coton tricoté et en polyester/viscose tricoté. Ces compositions contiennent un tensioactif de sulfonate anionique et un tensioactif de bétaïne zwitterionique dans un rapport en poids compris entre 2:1 et 99:1, de préférence entre 3:1 et 25:1. Le tensioactif anionique préféré est un sulfonate d'alkybenzène linéaire, le tensioactif de bétaïne préféré étant un bétaïne de cocoamidopropyle.

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