In order to reasonably control the waste percentage,to improve the trash content of noil and cleaning efficiency,the writer made a noil test on Trutzschler blowing-carding units.

• 为了合理控制特吕茨施勒尔清梳联合机的落棉率，提高落棉含杂率和除杂效率，对清梳联进行了落棉试验。