Birch, Stewart, Kolasch & Birch, LLP
Detergent particles
To provide detergent particles having high-speed dissolution capable of dissolving quickly in water after supplying the detergent particles in water, and a method for preparing the detergent particles, and a detergent composition comprising the detergent particles. Detergent particles having an average particle size of from 150 to 500 &mgr;m and a bulk density of 500 g/liter or more, wherein the detergent particles comprising a detergent particle being capable of releasing a bubble from an inner portion of the detergent particles in a process of dissolving the detergent particle in water, the bubble having a size of one-tenth or more of a particle size of the detergent particle, and wherein the detergent particles have a dissolution rate as calculated by Equation (1) of 90% or more, under conditions where the detergent particles are supplied in water at 5&deg; C.; stirred for 60 seconds under the test stirring conditions; and filtered with a standard sieve having a sieve-opening of 74 &mgr;m as defined by JIS Z 8801, or wherein the detergent particles have a dissolution rate of 82% or more, the detergent particles stirred for 30 seconds and calculated in the same manner as above.
Kao Corporation
C C C
C11D C11D C11D
inventional inventional inventional
Hiroyuki Teruo Shu Shuji Hitoshi
Yamashita Kubota Yamaguchi Takana Takaya