| 摘要 |
PROBLEM TO BE SOLVED: To provide detergent particles that have markedly improved caking resistance, excellent solubility and adhesion of a surface modifier to surfaces of the particles, and provide the production method thereof and a dispersion of fine particles for substrate treatment that is used in the detergent parciles. SOLUTION: The detergent particles are produced by treating base detergent particles at their surfaces with a substrate treatment fine particle dispersion formed by dispersing the fine particles for substrate treatment in a binder to form the substrate layer including the substrate treatment fine particles on the surface of the base detergent particles before the surface layer is further coated with the surface modifier. The process for producing the detergent particles comprises the step where the base detergent particles are treated with a dispersion of the substrate treatment fine particles in a binder, as a dispersion medium, on the surface to form the substrate layer including the substrate treatment fine particles on the surface of the base detergent particles, and the following step where the resultant particle surfaces are coated with the surface modifier. The fine particle dispersion for the substrate treatment is prepared by dispersing the fine particles for subtrate treatment in a binder. COPYRIGHT: (C)2004,JPO
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