Particulate detergent compositions

C - Chemistry – Metallurgy – 11 – D

Patent

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134/3.7

C11D 17/06 (2006.01) C11D 1/66 (2006.01) C11D 1/83 (2006.01) C11D 3/06 (2006.01) C11D 3/12 (2006.01)

Patent

CA 2289481

A particulate detergent composition having a bulk density of 700 g/l or less and containing at least 10 wt.% (preferably at least 15 wt.%) of organic detergent surfactant comprises a base powder composed of at least two granular components. Less than 80 % by weight, preferably less than 66 % by weight, of the base powder has a compressibility (measured at 20-25 °C and about 40 % relative humidity) of 17 % or more. Preferably one of the components of the base powder is a granule containing a high level (at least 60 wt.%) of anionic surfactant.

L'invention concerne une composition détergente particulaire ayant une masse volumique en vrac de 700 g/l ou moins et contenant au moins 10 % en poids (de préférence au moins 15 % en poids) de tensioactif détergent organique. Ladite composition comprend une poudre de base constituée d'au moins deux composants granulaires. Moins de 80 % en poids, de préférence moins de 66 % en poids, de la poudre de base présente une compressibilité (mesurée à 20-25 DEG C et à environ 40 % d'humidité relative) de 17 % ou plus. De préférence, un des composants de la poudre de base est une granule à teneur élevée en tensioactif anionique (au moins 60 % en poids).

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