We use the composite yarn, we should pay attention to follow some of the principles:

1. Dope Dyed PBT DTY Yarn with the characteristics of the fabric compatibility: the choice of polyester sewing thread should be the same or similar to the fabric of raw materials, so as to ensure its shrinkage, heat resistance, wear resistance, durability and other uniforms, to avoid the difference between lines, Causing the appearance of shrinkage. 2. consistent with the type of clothing: for special-purpose clothing, should consider the special function of the sewing thread, such as elastic clothing need to use elastic sewing thread, fire service need to use heat, fire and waterproof treatment of polyester sewing thread.

3. Dope Dyed PBT DTY Yarn coordination with the stitch shape: different parts of the clothing used in different stitches, polyester sewing thread should also be changed with it, such as the need for bulging lines or deformation line, double line stitch should choose a large extension of the line, Crotch seam, shoulder suture should be fast, and buttonhole needs to wear.