METHOD FOR MANUFACTURING A SILICA POWDER COATED WITH AN ANTIBACTERIAL AGENT, AND TOPICAL DERMATOLOGICAL COMPOSITION INCLUDING SAME

摘要

The present invention relates to a method for manufacturing a silica powder coated with an antibacterial agent, and to a topical dermatological composition including same, and more particularly, to the manufacture of a silica powder coated with an antibacterial agent by reacting silicon alkoxide in the presence of a catalyst in an alcohol solvent to form silica particles, and then forming silver and metal coating layers thereon, and to a method for manufacturing a topical dermatological composition using same. The silica powder coated with an antibacterial agent according to the present invention exhibits: strong antibacterial properties, so that when it is applied to a topical dermatological product, the topical dermatological product can be stored for an extended period without employing chemical preservatives that can cause skin irritation and allergic reactions; favorable antibacterial properties and safety while employing a small amount of expensive silver-ion material; and a bright color that, when used in a cosmetic composition, enables colors to be naturally represented, such that the powder can be applied without restrictions to both dark-colored and light-colored makeup.