Through systematic and detailed analyses for the causes of fuzz in gun roving production,it is concluded that the fuzz arising is related with strand tension,fiber size lubrication,cake drying and roving winding process.

Position optimization of the two nozzles on the the double nozzles air-jet spinning machine;

The Influence of the Installation Position of the Air-jet Spinning Nozzel on the Yarn Strength;

The first nozzle structural parameters of air-jet spinning machine mainly include jet orifice obliquity,nozzle inside diameter,jet orifice number.

Open-end jet spinning is a new spinning method, which works in such a way that a high-speed air current forms the open end with the aid of roller drafting, while a high-speed rotating air current inserts twist to the sliver.

The blended air-jet spun yarn of linen-like polyester fiber and ordinary polyester fiber is exploited in NO.

In this article,the effects imparted by the quality of the semi-product on the strength and evenness of air-jet spun yarns were simply analyzed,and those imparted by the technology of air-jetspinning machine,such as nozzle pressures、drawing ratios、collector breaths etc,were emphasized.