METHOD FOR PREPARING NANO-SILVER PARTICLE AND DETERGENT COMPOSITION BY USING THEM

摘要

PURPOSE: An additive for detergent is provided to ensure excellent antibacterial activity, harmful bacteria removal ratio and antibiotic durability, and to increase skin mildness and storage stability while not reducing detergency. CONSTITUTION: A method for preparing nano-silver particle comprises the steps of: (i) mixing trisodium citrate and hydrogen peroxide(H2O2) solution after dispersing silver nitrate(AgNO3) solution; (ii) adding polyvinyl pyrrolidone and sodium borohydride to the mixed solution and stirring them; (iii) removing impurity by filtering the mixed solution; and (iv) evaporating and drying the mixed solution from which impurity is removed.