Different products have different elastic requirements for spandex. Therefore, different fabric types should choose different suitable spandex.Two Testing Methods for Spandex.

Spandex fabric has good elasticity and high elastic recovery rate, and the clothes made of it can fit the curve of the human body very well, and people can stretch freely when they are moving without feeling of restraint, so this kind of clothes with spandex is very popular.

There are many factors affecting the elasticity of spandex yarn, such as oxidizing agent, reducing agent, caustic soda, high temperature and high humidity, organic solvent, etc. all have certain influence on the elasticity of spandex yarn.

Spandex Covered Yarns consist of bare spandex as the core material wrapped with various yarns and fibers. In the covering process, the spandex is drawn at a constant ratio, fed through a hollow spindle and covered with a covering yarn from a flanged bobbin.

Which is better, 95% cotton, 5 spandex or 100% cotton? What kind of fabric is 95 cotton 5 spandex? 95% pure cotton fabric is medium-thick, it is thinner than 100% high-count and high-density.

Spandex covered yarn is generally spun on a hollow spindle spinning machine, which is divided into three parts: spandex yarn feeding, stretching and covering, and relaxing winding. When working, the upper and lower groups of hollow spindles (one group for single-layer coating) are driven by the dragon belt to rotate in opposite directions. On the spandex core thread threaded from the hollow spindle. The covered yarn is wound into a parallel bobbin through the yarn drawing roller and the reciprocating yarn guide.