Parameters' optimization combination of sewing process of winter coat filled with wool

There are some wool fibers penetrating out of winter coat filled with wool during wearing process. In terms of phenomenon,the orthogonal experiments are used to test quantities of wool fibers penetrating out from fabrics and needle holes in different sewing conditions,which refers to the Fabrics-Testing Method for Anti-Penetration Capability of Feather and Down( GB / T 12705— 2009). SPSS software is used to analyze orthogonal experiments results,seeks optimization combination of sewing parameters and discusses influence of quantities of wool fibers penetrating out from fabrics under different sewing conditions. It shows that,for winter coat filled with wool,the optimization combination of sewing parameters are as follows: No. 9 round head sewing needle,linear density of sewing line of 14. 8 tex × 3,and stitch density of 9 needle /3 cm. It also shows that influences of needle size and sewing line's linear density are quite noticeable and equivalent,but stitch density has less influence.