Although
zinc pyrithione is known as an excellent antidandruff component, there is a demand for an effort to reduce the blending amount without lowering the effects from the viewpoint of environmental
pollution. Also, there is a demand for developing a technique that enables combining
zinc pyrithione with cuprous
oxide to be used as an antifouling component for a ship-bottom paint. Moreover, also as an
antiseptic and anti-mold component for
polymer materials, further enhancement of the
antimicrobial activity of
zinc pyrithione has been demanded.It has been elucidated that a new composite of the present invention obtained by treating an
aqueous suspension or an aqueous paste containing zinc pyrithione or a zinc pyrithione / zinc
oxide complex compound and ultrafine zinc
oxide having an average particle
diameter of 0.01 to 0.15 μM at pH 8 to 12 exerts an excellent physiologic / antibiotic activity such as an anti-
dandruff and hair restoration effect and an
underwater antifouling,
antiseptic and anti-mold effect. Thus, the above-described problems have been solved.