| 摘要 |
PROBLEM TO BE SOLVED: To provide a decayable particlewhich gives less damage to skin and itch due to decay of the particle during s process of washing and rinsing and a detergent composition which contains said decayable particle and shows excellent detergency and washing-out ability due to easy decay of the decayable particle by rinsing water and tears. SOLUTION: A decayable particle is formed by coagulation of a primary particle at least a part of which is insoluble in water and the coagulation is destroyed by decrease of concentration of water soluble salt of an aqueous solution containing a water soluble salt. The detergent composition contains a decayable particle, the water soluble salt, a surface active agent and water wherein the concentration of water soluble salt is less than the concentration of the saturated solubility. The detergent composition shows excellent physical (mechanical) detergency, less time dependence thereof and good availability and further gives less damage and itch to skin and excellent washing-out ability due to ease decay of the decayable particle by rinsing water and tears. |
