Why do women who died in the Qing Dynasty wear scarves?

Longhua is an accessory for Manchu women in Qing Dynasty. The color is white, and the texture is mostly silk and silk. When in use, it is wrapped around the neck to play the role of a collar. The scarves of Manchu women in Qing Dynasty were made of white silk, several inches wide and several feet long. When it is used, it is tied around the neck and hangs down. As we know, the traditional clothes in Manchuria have no collars, or the collars are separated, and so are men's and women's clothes. However, when wearing official clothes, in addition to wearing a "collar coat" or a fake collar in summer, women will also wear casual clothes. Shirts and clothes have no collars, and the strip of cloth around the neck is actually the role of the collar.