Influence of different damp-heat setting techniques on crimp-hair setting effect

摘要

In order to investigate the persistence and stability of the human hair setting effect, different setting temperature, setting time, dry and damp conditions were designed to carry out damp-heat setting on real hair samples. Crimp recovery was used to evaluate elastic recovery of crimp hair. The tensile properties of human hair before and after setting were also tested. Results showed that crimp hair settled in the damp state presented a better elasticity than that in the dry state. With the increase of setting time, crimp elasticity increased. In the damp state, setting temperature of 114°C and setting time of 40 minutes were the best condition for the setting of crimp hair.