Through tech-analysis of the application of the doublelayered cots of spun yarn,suggestions are given as to how to properly use the cot for better yarn quality.

• 通过对几种细纱双层胶辊实际应用情况的技术分析,论述了如何合理使用好双层胶辊来提高成纱质量,并指出双层胶辊在日常使用中应注意的事项。