| 摘要 |
PROBLEM TO BE SOLVED: To provide a humidifying-type hair setting treatment preparation capable of making hair-waving set, and straight-set and hair correction etc. through eliminating strains inside the hair such as wavy hair and curly hair, by producing tannin linkages among the polypeptide chains of the hair using odorless and highly safe tannin, compared to cold perming treatment as a current method with a highly concentrated mercaptan-based reducing agent emitting intense odor as the main agent. SOLUTION: The humidifying-type hair setting treatment preparation comprises: a tannin crosslinking agent with, as the main agent, a modified tannin obtained by oligomerizing, in the alkaline range of pH 8-10 and further activating, by reducing action with a sulfite, the original tannin; and a weakly acidic neutralizing agent to neutralize alkali compound(s) left inside the hair treated with the tannin crosslinking agent. Besides, a hair setting treatment method owing to the tannin crosslinking is provided, also serving as a highly effective means for repairing and ameliorating e.g. the declines in the mechanical strengths and elasticity of damaged hair caused by the chemical actions stemmed from current methods including cold perming, hair-coloring and hair-bleaching treatment methods. COPYRIGHT: (C)2011,JPO&INPIT |
