| abstract |
PROBLEM TO BE SOLVED: To maintain a heat-treated set even after washing hair. [Solution] Using a shampoo, treatment, permanent wave liquid, and hair color containing a biodegradable resin dispersion in which the biodegradable resin is dispersed and stabilized, the biodegradable resin dispersion is attached to the hair and biodegraded. After the adhesive resin dispersion is attached, the hair is heat-treated with a hair iron at a temperature of 10 ° C. to 180 ° C., and a glossy and long-lasting curl set or straight permanent is applied. A curl set or straight perm cannot be removed, and it is characterized by washing with an alkaline soap and washing away the biodegradable resin. |