Abstract: A high-density detergent composition comprises 10 to 60% by weight of a surfactant composition having a weight ratio of an anionic surfactant to a nonionic surfactant of 4:10 or more and 10:0 or less, wherein the high-density detergent composition has a bulk density of from 600 to 1200 g/L, and has a total summation of a product of a mass base frequency Wi and a dissolving rate Vi of each group of classified granules obtained by classifying detergent granules by using a classifier, which satisfies the following formula: ?(Wi·Vi)?95(%), and wherein a mass base frequency of the classified granules having a size of less than 125 ?m is 0.1 or less, wherein the classifier comprises sieves each having a sieve-opening 2000 ?m, 1410 ?m, 1000 ?m, 710 ?m, 500 ?m, 355 ?m, 250 ?m, 180 ?m, and 125 ?m, and a receiver.

Abstract: 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), an

Abstract: 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 &mgr;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 &mgr;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 &mgr;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