| 摘要 |
PURPOSE:The titled dispersion having extreme stability under ordinary preservation condition, improved salt resistance, being restored to the original state when it is melted even if it is frozen, obtained by dispersing a metal salt of 2-mercaptopyridine-N-oxide into water by the use of a specific high polymer compound. CONSTITUTION:A dispersion containing (A) a metal salt of 2-mercaptopyridine- N-oxide, such as salt of Zn, Ca, Fe, Hg, Sb, etc. (preferably Za salt), and (B) a polyglycol/polyamine condensed resin (polyglycol/polyamine/alkyl or alkyleneamine condensed resin). The dispersion is blended in such a way that the amount of A is 0.0015-60wt%, especially 0.1-50wt%, the amount of B is an amount to give a weight ratio of the component A/B of 1/0.01-1/10, especially 1/0.01-1/5, and the rest is preferably water or lower alcohol-water. A hair treatment base is uniformly blended with the above-mentioned dispersion of antimicrobial agent while stirring to give a hair treatment wherein the component A is kept in a stabilized dispersion state.
|
