Detergent composition comprising a polymeric polycarboxylic...

C - Chemistry – Metallurgy – 11 – D

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C11D 3/386 (2006.01) C11D 3/33 (2006.01) C11D 3/36 (2006.01) C11D 3/37 (2006.01) C11D 3/39 (2006.01)

Patent

CA 2214266

There is provided a non-phosphate builder-containing detergent composition formulated with a surfactant, a water-soluble organic polymeric polycarboxylic compound, a chelant, an amylase and a source of alkalinity, wherein (a) said water-soluble organic polymeric polycarboxylic compound is in amount less than 3 % by weight (b) said chelant is in amount from 0.1 % to 10 % by weight, (c) said amylase is in amount from 0.001 % to 5 % by weight, and (d) said alkalinity source has the capacity to deliver alkalinity to a wash solution as measured by the alkalinity release test described herein, such that the % weight NaOH equivalent of the composition is greater than 8.0 % by weight of the composition. Also provided herein is a method for reducing fabric encrustation which comprises contacting the fabric with an effective amount of an aqueous solution of said detergent composition.

L'invention porte sur une composition détergente sans phosphates contenant un adjuvant ainsi qu'un tensio-actif un composé polycarboxylique polymère organique hydrosoluble, un chélateur, une amylase et une source d'alcalinité dans laquelle: (a) ledit composé polycarboxylique polymére organique hydrosoluble représente moins de 3 % en poids; (b) ledit chélateur représente de 0,1 à 10 % en poids; (c) ladite amylase représente de 0,001 à 5 % en poids; (d) et ladite source d'alcalinité peut conférer à la lessive une alcalinité, mesurée selon le test de libération d'alcalinité décrit ici, de sorte que l'équivalent de NaOH de la composition en % en poids représente plus de 8 % en poids de la composition. L'invention porte également sur un procédé de réduction des incrustations dans les tissus consistant à exposer le tissu à une quantité efficace d'une solution aqueuse de ladite composition détergente.

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