Introduction

Stretch fabric is a fabric with certain elasticity. It can adapt to the activities of the human body, stretches and shrinks with time, is light and comfortable, and can also maintain the beautiful appearance of the clothes, so that the knees, elbows and other parts of the clothes will not be deformed and bulged due to long wearing time.

organizational structure

Spandex elastic yarn is usually used to give the fabric a certain degree of elasticity. The elastic fabric containing spandex yarn can be divided into warp elastic, weft elastic and warp and weft two-way elastic. The two- and four-sided elastic fabric is two-way elastic in warp and weft, the general elastic elongation rate is 10%-15%, and the spandex content in the fabric is about 3%.

processing method

The usual method for elastic fabrics is to add spandex elastic yarn into the fabric, firstly twist the yarn and spandex covered yarn to make elastic yarn, and the feeding length of the two must be controlled separately for twist and twist. To control the size of the yarn elasticity. Yarn and fabric elongation is controlled during manufacturing and finishing to control the stretch of the finished product.

Spandex elastic yarn

Spandex elastic yarn has the stretching characteristics of rubber yarn, and its elongation at break is as high as 500%, and it can immediately restore the original length after releasing the external force. There are three kinds of bare silk single-layer or double-layer covered yarn, leather yarn or leather-core ply yarn. It is more convenient to use single-layer or double-layer covered yarn.