Detergent compositions
AssigneeLever Brothers Company, Division of Conopco, Inc.
InventorsWilliam Derek Emery, Terry Instone, Seeng Djiang Liem, Gilbert Martin Verschelling
Life of this patent
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Abstract
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.
Claims15
A particulate detergent composition having a bulk density of 700 g/l or less and comprising at least 10 wt % of organic detergent surfactant, the composition comprising a base powder which contains detergency builder and organic detergent surfactant selected from the group consisting of anionic surfactants, nonionic surfactants and mixtures thereof and which consists of structured particles, characterized in that the base powder is composed of at least two different granular components, including:
- (a) at least one granular component having an anionic surfactant content of 60 wt % or more, and
- (b) at least one granular component containing at least 70 wt % of builder material which is sodium tripolyphosphate and/or zeolite, and less than 5 wt % detergent surfactant,
- at least one of these granular components having a compressibility, measured at 20-25°C. and about 40% relative humidity, of less than 17%, whereby less than 80 wt % of the total base powder is constituted by a granular component or components having a compressibility of 17% or more.
Dependencies are inferred from the claim text.