Detergent compositions in tablet form
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsPeter William Appel, Edwin Leo Lempers, Henning Wagner
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Abstract
Detergent compositions in the form of tablets used in fabric washing which incorporate most of the surfactants in particles which constitute a substantial part but not all the composition of the tablet. The organic surfactant in this particles provides a substantial part but not all of the weight of the particles. The mixture of anionic and nonionic detergent surfactants is employed wherein anionic is clearly in the majority. The balance of the composition contains a substantial proportion of material other than organic surfactant which is water-soluble.
Claims15
A detergent tablet of compressed particulate composition wherein the tablet or a region thereof comprises organic surfactant and water-insoluble detergency builder, wherein the tablet or region thereof contains from 30 to 65%, by weight of the tablet or region respectively, of particles which contain from 20 to 50% by weight of these particles of non-soap organic surfactant which is anionic and nonionic surfactants in a weight ratio from 5:1 to 1.5:1 and wherein the particles include soap and the weight ratio of nonionic surfactant to soap in said particles lies in a range from 10:1 to 30:1, and wherein in addition to said particles the tablet or region contains 15% or more by weight of the tablet or region respectively of a water-soluble material which is other than soap or organic surfactant and which is selected from the group consisting of compounds with a water-solubility exceeding 10 gm/liter water at 20° C.;
- sodium tripolyphosphate containing at least 50% of its own weight of the phase I anhydrous form, and mixtures thereof.
Dependencies are inferred from the claim text.