Process for preparing detergent granules

摘要

The present invention relates to a process for making a detergent component having a bulk density of at least 650 g/l, which comprises the steps of: (i) forming a structured paste comprising a uniform mixture of, by weight; (a) from 5% to 40% of water; (b) from 30% to 90% of an ingredient selected from the group consisting of anionic, zwitterionic, cationic, ampholytic and nonionic surfactant; water-soluble organic polymer; and mixtures thereof; (c) from 1% to 20% of water-soluble silicate salt; (d) at least 30% of linear alkyl benzene sulphonate; in a continuous process; wherein the maximum pressure reached in step (i) is not less than 10 bar; and (ii) subsequently dispersing said structured paste with one or more builders in powder form; in a high shear mixer at a tip speed of greater than 10 meters per second; wherein the ratio of the structured paste to the builder powder is from 9:1 to 1:5.