Fancy yarn is usually composed of three yarns, namely core yarn, solid yarn and yarn. Core yarn mainly plays a major role in providing yarn strength. Generally, high-strength silk or yarn is used as the core yarn. The solid yarn is used to fix the shape of the flower from the strengthening effect, so that the pattern can be fixed according to the production mode, avoiding sliding along the length direction. Most solid yarns are made of long, thin silk threads. Show the fancy effect of woven yarn through yarn, fancy yarn, such as thickness, round, braid, etc.
Draft ratio=front roller speed/rear roller speed=yarn fed to yarn × The feed ratio/output yarn can be constant or variable in draft weight, resulting in different flowers.
The twist of fancy yarn, for the winding machine, generally refers to the number of packages with the core length of the yarn in the package, namely the hollow spindle speed/output roller speed. The number of packages, the feeling, appearance and effect of fancy yarn are directly related. For the wrap around model, in addition to the number of packages, there is also ring twisting. The purpose of twisting is to balance the imbalance caused by packaging, so the setting of this parameter must be used together with the degree of packaging and other yarns.
