Abstract: The foaming performance in hard water of dishwashing detergent compositions containing dialkyl sulphosuccinates is enhanced by including in the composition a substantially water-soluble protein having a Bloom gel strength of at least 50 g, preferably from 150 to 300 g and especially from 200 to 250 g. The protein is advantageously a gelatin.

Abstract: A detergent composition with especially good foaming properties includes a di(C.sub.7 -C.sub.9) alkyl sulphosuccinate, preferably a di(C.sub.8 alkyl) sulphosuccinate, and an unsymmetrical dialkyl sulphosuccinate in which one alkyl group is C.sub.7 -C.sub.9 and the other is C.sub.3 -C.sub.6, preferably a (C.sub.6 alkyl) (C.sub.8 alkyl) sulphosuccinate. A di(C.sub.3 -C.sub.6) alkyl sulphosuccinate may advantageously be present. An especially preferred mixture comprises di(n-octyl), (n-octyl n-hexyl) and di(n-hexyl) sulphosuccinates, and this mixture may be prepared by esterifying maleic anhydride or the like with a mixture of n-octanol and n-butanol, followed by bisulphite addition. The detergent composition is preferably in liquid form and is suitable for shampoos, fabric washing and, in particular, manual dishwashing.

Abstract: A detergent composition with especially good foaming properties includes a di(C.sub.8 alkyl) sulphosuccinate, a di(C.sub.6 alkyl) sulphosuccinate and a further detergent-active agent which is preferably selected from alkyl ether sulphates, nonionic detergents and mixtures thereof. The detergent composition is preferably in liquid form and is suitable inter alia for shampoos, fabric washing and, in particular, manual dishwashing.

Abstract: The foaming performance in hard water of dishwashing detergent compositions containing dialkyl sulphosuccinates is enhanced by including in the composition a substantially water-soluble substantially undegraded protein, such as soluble casein, sodium caseinate, soluble gelatin or chicken egg albumen.