Starting from the three factors the durabilty,the dispersity andthe roughness of cots,some suggestions are made to the cotton mills on selection and use of cots for higher spinning quality.

• 从胶辊的胶料综合分散度、硬度、表面粗糙度的质量特性着手分析了三者对纺纱质量的影响，对棉纺厂选择和使用胶辊、提高纺纱质量有一定的参考价值。