Bacteriostatic agent and an extended release preparation

The present invention relates to a method of preparing sustained-release and antimicrobial agent, the release agent is an antibacterial agent, bactericide release enhancer colloidal paste mixing, and dissolving agent obtained release the bacteriostatic agent active parts by weight of the composition and: 1000 parts of sodium bentonite, hymexazol 1.2 to 1.8 parts of rosin acid copper and 3.6 to 6.0 parts of aluminum sulfate 24 to 36 parts, the balance of pure water, the interaction of the ingredients prepared gray paste gel, antibacterial antiseptic effect is prominent, and take full advantage of the features and performance of each component, the ratio of the amount of scientific and rational; combined with the actual production closely, use the method is simple, cheap and easy to buy material for a wide range, with strong practical, the promotion of high value in use.