Laundry washing method

Details Laundry washing method Laundry washing method

C - Chemistry, Metallurgy

11

D

C11D 1/62 (2006.01) C11D 17/00 (2006.01) D06F 39/02 (2006.01) D06L 1/12 (2006.01) C11D 17/04 (2006.01)

Patent

CA 2226637

There is provided a method of washing soiled laundry in a domestic or industrial washing machine wherein a delivery means is provided for dispensing an effective amount of a detergent composition directly to the drum of a washing machine before the commencement of the wash and subsequently enabling release of said detergent composition to the wash liquor during the wash. Said detergent composition contains a cationic ester surfactant and an alkalinity system comprising alkaline salts. The delivery means enables the delivery of said cationic ester surfactant to said soiled laundry prior to the establishment of an alkaline wash liquor environment around the soiled laundry. A washing method including a pretreatment step is also provided.

L'invention concerne un procédé pour laver du linge sale dans une machine à laver domestique ou industrielle, où un distributeur est prévu pour envoyer une dose efficace de composition détergente directement dans le tambour de la machine à laver avant le commencement du lavage et pour permettre une libération subséquente du détergent dans la liqueur de lavage durant le lavage. La composition détergente contient un tensioactif cationique du type ester et un système apportant de l'alcalinité, constitué de sels alcalins. Le distributeur permet d'envoyer le tensioactif cationique du type ester au linge sale avant la constitution d'un environnement comprenant la liqueur de lavage alcaline autour du linge sale. L'invention concerne également un procédé de lavage comprenant une étape de prélavage.

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