Kao Corporation

Yasuji Yamada

Hiroyuki Yamashita

Koji Toyoda

Masaaki Sakaue

Teruo Kubota

Hiroshi Kogurusu

Koichi Hatano

The method for producing nonionic detergent granules includes the steps of (I) blending the following (i) to (iii): (i) at least one of a nonionic surfactant and an aqueous nonionic surfactant solution; (ii) an acid precursor of an anionic surfactant capable of having a lamellar orientation; (iii) at least one of an alkali builder and an alkali, porous oil-absorbing carrier, to give a mixture of detergent starting materials containing the nonionic surfactant as a main surfactant component; and (II) heating the mixture obtained in step (I) at least up to a temperature capable of neutralizing the acid precursor of the anionic surfactant in an agitating mixer, and granulating while tumbling the agitating mixer thereby increasing a bulk density, to give nonionic detergent granules having a bulk density of from 0.6 to 1.2 g/ml.

Method for producing nonionic detergent granules

Method for producing detergent particles having high bulk density

Growing community of inventors

Wakayama, Japan

Yasuji Yamada