Detergent composition and method for washing using the same

C - Chemistry – Metallurgy – 11 – D

Patent

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C11D 7/24 (2006.01)

Patent

CA 2182629

A detergent composition for laundering thin and contractive laundry made of silk, wool, etc. at home without fiber damage and a method for laundering using the same are disclosed. The detergent composition includes from about 15 to about 45 parts by weight of surfactant consisting of lauryl alcohol oxyethylene and coconut fatty acid alcohol amide, from about 15 to about 35 parts by weight of solvent for laundering containing normal paraffin and/or limonene, from about 25 to about 50 parts by weight of water, from about 0.3 to about 0.7 parts by weight of tetra-alkyl ammonium chloride, from about 0.2 to about 0.7 parts by weight of protease maintaining a titer at the pH of from about 6.0 to about 8.0, from about 0.3 to about 0.8 parts by weight of lipase, from about 0.3 to about 0.7 parts by weight of carboxymethyl cellulose and about 6 to about 10 parts by weight of butyl diglycol. After adding the detergent composition to a washing tank having a rotary blade, an appropriate amount of water is added to the washing tank while rotating the rotational blade to dilute the detergent composition. More water is added to the washing tank to adjust the water level to a level suitable for laundering and laundry made of wool or silk is introduced into the washing tank. The laundering is carried out by rotating the rotary blade to generate water flow.

L'invention concerne une composition détergente permettant de laver, à domicile, du linge mince pouvant se contracter, constitué de soie, de laine, etc., sans endommager les fibres, ainsi qu'un procédé de lavage au moyen d'une telle composition. Ladite composition détergente comprend d'environ 15 à environ 45 parties en poids d'un tensioactif constitué d'oxyéthylène d'alcool laurique et d'amide d'alcool d'acide gras de coco, d'environ 15 à environ 35 parties en poids d'un solvant pour blanchissage contenant un hydrocarbure paraffinique normal et/ou du limonène, d'environ 25 à environ 50 parties en poids d'eau, d'environ 0,3 à environ 0,7 parties en poids de chlorure de tétra-alkylammonium, d'environ 0,2 à environ 0,7 parties en poids de protéase destinée à maintenir le pH à une valeur comprise entre environ 6,0 et environ 8,0, d'environ 0,3 à environ 0,8 parties en poids de lipase, d'environ 0,3 à environ 0,7 parties en poids de carboxyméthylcellulose et d'environ 6 à environ 10 parties en poids de butyldiglycole. Après avoir placé la composition détergente dans une cuve de lavage pourvue d'une palette rotative, on ajoute, dans ladite cuve, une quantité d'eau appropriée tout en faisant tourner la palette rotative pour diluer la composition détergente. Puis on ajoute encore de l'eau dans la cuve jusqu'à un niveau convenant au lavage et le linge constitué de laine ou de soie est placé dans ladite cuve. Le blanchissage se fait par rotation de la palette rotative, cette rotation générant un flux d'eau.

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