Experimental research of vortex tube's jet orifice technology in jet vortex spinning

It is well known that jet vortex spinning is to form yarns employing high speed air vortex in vortex tube to entangle the fibers.In order to study the influence of the vortex tube′s jet orifice parameters on the spinning,the vortex tube′s jet orifice parameters(jet orifice diameter,jet orifice obliquity and jet orifice number) were discussed.The two jet orifice diameters(0.5,0.6 mm) were chosen,and seven jet orifice obliquities(30.0°,32.5°,35.0°,37.5°,40.0°,45.0° and 50.0°) and three jet orifice numbers(4,5 and 6) were selected based on the above two diameters,and with viscose as raw material,jet vortex spinning experiments were performed on a small sample machine.The experimental results indicate that: the quality of the formed yarn is good and the energy consumption is less under the conditions: jet orifice obliquity of 45.0°,jet orifice diameter of 0.5 mm and jet orifice number of 4.