In ancient times, combing was a necessary hair accessory, especially for women, who could hardly be combed away from the body. After a long time, the style of combing was formed. A grate is a combing tool that is denser than a comb, and is initially used to remove hair dirt. Tang Lihe’s "Qin Palace" poem: "The luan grate won't return people drunk and sleepy." Wang Qi explained: "Grate, so to get rid of dirt, use bamboo for it. Luan grate must be the image of Luan.