Influence of Technological Parameter for Ramie Yarn Hairiness on Compact Spinning with Suction Groove

The application of compact spinning technology with suction groove for ramie was studied. This technology improved ramie yarn hairiness, breaking strength and so on. The performance of the yarn hairiness was analyzed in detail through contrast test of the compact spinning technology with suction groove and the traditional ring spinning for ramie fiber. At the same time, the comprehensive performances of ramie yarn spinning by the two kinds of spinning technologies were contrasted and analyzed. The results showed that the spinning technology with suction groove can be significantly improved ramie yarn properties: hairiness and breaking strength etc. In the spinning technology with suction groove, the optimal technological parameter for producing least yarn hairiness, A1 B1 C1 D1, is acquired, where the spindle speed A is 6600 r/min, twist B is 608 T/m, the value of negative pressure C is -3.1 kPa, and traveler D is 21 # (yarn Nm 36).