LAUNDRY DETERGENT COMPOSITIONS CONTAINING A COMBINATION OF SURFACTANTS AND OPTICAL BRIGHTENERS

摘要

A laundry detergent composition, preferably in granular form, comprising 5 % to about 40 % detergent surfactant consisting of a primary anionic surfactant selected from alkylbenzene sulfonate, alkyl sulfate, and mixtures thereof, and an alkyl ethoxy sulfate surfactant having an average of from about 1 to about 9 moles ethoxy per mole surfactant, the ratio of primary anionic surfactant to alkyl ethoxy sulfate surfactant being within the range of from about 38:1 to about 4:1, and optical brightener selected from triazinylaminostilbenes and distyrylbiphenyls, wherein the weight ratio of primary anionic surfactant plus alkyl ethoxy sulfate surfactant to optical brightener is about 50:1 and above. The composition optionally comprises an hydroxyalkyl quaternary ammonium cationic surfactant and an alkyl ethoxy alcohol surfactant. The composition provides improved brightener performance.