Base particles for supporting a surfactant, obtainable by a step of spray-drying
a slurry comprising (A) a zeolite having an average aggregate particle diameter
of 15 m or less and a variation coefficient of a distribution of an aggregate
particle diameter of 29% or less, (B) a water-soluble polymer; (C) a water-soluble
salt, and (D) a surfactant in an amount of 5% by weight or less of the slurry;
detergent particles comprising the base particles; and a zeolite for a laundry
detergent, wherein the zeolite has an average aggregate particle diameter of 15
m or less and a variation coefficient of a distribution of an aggregate
particle diameter of 29% or less; and a process for preparing base particles for
supporting a surfactant, comprising a step of spray-drying a slurry comprising
a zeolite (A) having an average aggregate particle diameter of 15 m or less
and a variation coefficient of a distribution of an aggregate particle diameter
of 29% or less, a water-soluble polymer (B), a water-soluble salt (C), and optionally
a surfactant (D) so as to give base particles comprising 1 to 90% by weight of
the zeolite (A), 2 to 25% by weight of the water-soluble polymer (B), 5 to 75%
by weight of the water-soluble salt (C), and optionally 0 to 5% by weight of the
surfactant (D).
