Process for preparing a low tfm detergent bar composition

C - Chemistry – Metallurgy – 11 – D

Patent

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Details

C11D 9/18 (2006.01) C11D 11/04 (2006.01) C11D 13/14 (2006.01)

Patent

CA 2355235

A low total fatty matter content detergent bar composition comprising a surfactant 25-70% total fatty matter, 9-16% by weight colloidal aluminium hydroxide and 12-52% water. The invention also comprises a process for preparing a detergent bar comprising a surfactant, 25-70% total fatty matter, 0.5-20% colloidal aluminium hydroxide and 15-52% water, comprising the steps of reacting one or more fatty acids or fats with sodium aluminate with a solid content of 20-55% wherein the Al2O3 to Na2O ratio is in the region 0.5-1.55:1 to obtain a mixture of aluminium hydroxide and soap at a temperature of between 40°C and 95°C, adding a predetermined amount of water to the mixture of aluminium hydroxide and soap, adding any further minor additives, and converting the product into bars.

L'invention concerne une composition de pain de détergent à faible teneur en matière grasse totale comprenant un tensioactif, 25-70 % de matière grasse totale, 9-16 % en poids d'hydroxyde d'aluminium colloïdal et 12-52 % d'eau. L'invention concerne également un procédé de préparation d'un pain de détergent contenant un tensioactif, 25-70 % de matière grasse totale, 0,5-20 % d'hydroxyde d'aluminium colloïdal et 15-52 % d'eau, comprenant les étapes consistant à faire réagir un ou plusieurs acides gras ou matières grasses avec de l'aluminate de sodium ayant une teneur en solide de 20-55 %, dans lequel le rapport entre Al2O3 et Na2O se situe dans la région de 0,5-1,55:1 pour obtenir un mélange d'hydroxyde d'aluminium et de savon à une température située entre 40 DEG C et 95 DEG C, à ajouter une quantité prédéterminée d'eau au mélange d'hydroxyde d'aluminium et de savon, à ajouter tout autre additif secondaire, et à transformer le produit en pains.

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