The basic factors of hot melting sizing to worsted yarns are expounded in this paper,and developed a suitable sizing to worsted yarns.

• 介绍了毛纱上浆对热熔浆料的基本要求,研制了一种适合毛纱上浆的热熔浆料,并对上浆毛纱的各项性能指标进行了测试和比较。