STRUCTURED DETERGENT PARTICLES AND GRANULAR DETERGENT COMPOSITIONS CONTAINING THE SAME

摘要

This relates to structured detergent particles with high-level surfactant activity, which contains about 50-90 wt % of a C10-C20 linear alkyl benzene sulphonate, about 10-50 wt % of a hydrophilic silica, and about 0-35 wt % of a water-soluble salt of an alkaline metal. Such structured detergent particles demonstrate better flowability and less moisture uptake, and are therefore particularly useful for forming free-flowing finished detergent products that are less vulnerable to caking over time.

主权项

1. A structured detergent particle comprising:
(a) from 50 wt % to 90 wt % of an anionic surfactant that is a C10-C20 linear alkyl benzene sulphonate; (b) from 10 wt % to 50 wt % of a hydrophilic silica having a mean particle size ranging from 1 μm to 40 μm; and (c) from 0 wt % to 35 wt % of a water-soluble inorganic salt of an alkaline metal; wherein said structured detergent particle is characterized by: (1) a particle size distribution Dw50 of from 100 μm to 1000 μm; (2) a bulk density of from 400 to 1000 g/L; and (3) a moisture content of from 0 wt % to 5 wt %.