ETT FOSFATFRITT FRIRINNANDE, PARTIKELFORMIGT, HOGVERKANDE TVETTMEDEL OCH FORFARANDE FOR DESS FRAMSTELLNING

摘要

A free-flowing particulate detergent composition suitable for heavy duty laundering in hard water, comprising particles of ion exchanging zeolite and nonionic detergent, with a water-soluble inorganic builder salt which consists of or includes alkali metal pyrophosphate or a mixture of alkali metal carbonate with alkali metal bicarbonate or with alkali metal silicate. Methods for the manufacture of such compositions involve combinations of spray drying and post-addition techniques.