Mainly discusses the effect of three technologic parameters-spinning speed,the gauge between front roller nip and first nozzle,atmospheric pressure on air-jet spun yarn strength, and gives optimal parameters through experiments.

• 阐述了纺纱速度、前罗拉钳口与第一喷嘴隔距、纺纱气压三大工艺参数对喷气纱强力的影响 ,并通过实验找出了最优的参数。