Abstract: This invention provides a detergent composition by which proteinaceous depositions can be easily removed from contact lenses in a short time, and method for removing such depositions from the contact lenses. The detergent composition comprises (A) at least one glycosidase selected from the group consisting of amylase, cellulase, pectinase, hemicellulase, alginase, heparinase and dextranase; and (B) at least one activator selected from the group consisting of urea, thiourea, acid salts of guanidine, reductants, amino acids and salts thereof.

Abstract: A detergent composition, suitable for use in washing vegetables and dishes and shampooing human hair, having both good detergency and little hand roughening action is presented. This detergent composition contains:(a) a water-soluble salt of olefin sulfonic acid having 12 to 16 carbon atoms and(b) a tertiary amine oxide having the formula ##STR1## wherein R.sup.1 is an alkyl group of 10 to 14 carbon atoms, and R.sup.2 and R.sup.3 are independently an alkyl or hydroxyalkyl group, of 1 to 3 carbon atoms. The contents of each of said components (a) and (b) in the composition being within the range of from 2 to 20% by weight, and the mol ratio of the component (a) to the component (b) being within the range of from 1.5/1 to 0.5/1, and the pH of an aqueous solution of the detergent composition being within the range of from 7.3 to 8.0 at the concentration when it is used in washing vegetables and dishes.

Abstract: A production process of a liquid detergent composition having both good detergency and little hand roughening action is presented. This liquid detergent composition can be produced by mixing an anionic surface active agent and a semi-polar nonionic surface active agent, each in the stage of an aqueous solution, and then, adding a specified arylsulfonic acid to this mixture in such a manner that the produced liquid detergent composition contains 6 to 25% by weight of the anionic surface active agent, 2 to 8% by weight of the semi-polar nonionic surface active agent and 0.2 to 3.0% by weight of the arylsulfonic acid.