Abstract: A particulate laundry detergent composition which comprises a detergent base powder comprising surfactant and builder and, as separate particulate components: (a) an alkali metal carbonate salt selected from carbonate, bicarbonate, sesquicarbonate and combinations thereof; and (b) a water-soluble organic acid which, when reacted with (a) in the presence of water, generates carbon dioxide gas; wherein the alkali metal carbonate salt, when taken separately, has a 90% dissolution time of less than 15 seconds, preferably less than 10 seconds, more preferably less than 7 seconds; and the water-soluble organic acid has a d50 particle size which is in the range of from 150 to 1500 microns. The alkali metal carbonate salt preferably has an average bulk density of at most 1000 g/l, preferably at most 800 g/l, more preferably at most 600 g/l. The alkali metal carbonate salt preferably has a d50 particle size of at most 250 microns, preferably from 1 to 200 microns, more preferably from 10 to 150 microns.

Abstract: A particulate laundry detergent composition which comprises, as separate particulate components:

Abstract: A particulate laundry detergent composition which comprises a detergent base powder comprising surfactant and builder and, as separate particulate components:

Abstract: A particulate laundry detergent composition which comprises, as separate particulate components:

Abstract: A free-flowing granular detergent component comprises a high level (at least 30 wt %) of a heat-sensitive surfactant, preferably an alkyl ether sulphate; a water-insoluble silica or silicate carrier material of high oil absorption capacity; and a film-forming or crystal-forming structurant. The granular component may be used in conjunction with one or more other granular components containing surfactant and/or detergency builder, to form a particulate laundry detergent composition. The granular component is preferably prepared by mixing and granulation in a high- or moderate-shear mixer and drying in a fluidized bed.

Abstract: A particulate detergent composition or component of high bulk density (at least 600 g/l), comprising at least 10% by weight of detergent surfactant and from 10 to 70% by weight of detergency builder, is composed of at least two, and preferably at least three, different granular components: (i) granules comprising at least 60% by weight of anionic surfactant, (ii) granules comprising at least 20% by weight of nonionic surfactant, and less than 10% by weight of aluminosilicate. (iii)optionally, granules comprising detergency builder.

Abstract: A detergent tablet of compressed particulate composition, and a process of making such a tablet, wherein the tablet or a region thereof comprises organic detergent and detergency builder and the tablet or region thereof is compacted from a composition which contains: (A) particles containing at least 60% by weight of non-soap anionic detergent (B) particles containing at least 80% of their own weight of one or more water-soluble materials selected from compounds with a water-solubility exceeding 50 grams per 100 grams water at 20° C.; and sodium tripolyphosphate containing at least 50% of its own weight of the phase I anhydrous form.

Abstract: A free-flowing built particulate laundry detergent composition comprises: (i) at least 27% by weight of non-soap organic detergent surfactant, (ii) one or more detergency builders, but not more than 7% by weight of alkali metal aluminosilicate, the weight ratio of surfactant to builder being at least 1.2:1.

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.