By comparative analysis of the metal top cradles and the plastic ones, conclusion is made that the latter is superior over the former, with the result of reducing CV value and yarn defects.

• 摘要通过应用金属上销与塑料上销纺纱的对比试验，表明塑料上销优于金属上销，可达到改善条干、降低纱疵的目的。