The elastic band material is composed of rubber, polyester, glue, elastic fiber and so on. Synthetic rubber generally used: cis-1,4-polyisoprene rubber (isoprene rubber for short) cis-1,4-polybutadiene rubber (cis butadiene rubber for short).
According to different weaving methods, it is divided into woven elastic band, knitted elastic band, and knitted elastic band.
Elastic band woven elastic band is made of cotton or chemical fiber as warp and weft, and is interwoven with a group of rubber yarn (latex yarn or spandex yarn) according to certain rules.
Knitted elastic bands are woven using the warp knitting method. Under the action of crochet or tongue needles, the warp threads are bound into braided chains, and the weft threads are lined with each braided chain, connecting the scattered braided chains into bands, and the rubber wire is covered by the braided chain, or by two sets of weft threads Holding. Knitted elastic bands can produce a variety of small patterns, color bars and crescent edges. The texture is loose and soft. Most of the raw materials are nylon stretch silk. The products are mostly used for women's bras and underwear.
Knitted elastic band is also called spindle woven elastic band, and the warp is woven by the spindle around the rubber wire according to the "8" shaped track. The texture of the belt is herringbone, the bandwidth is generally 0.3 to 2 cm, and the texture is between woven and knitted elastic bands. The color variety is monotonous, and it is mostly used for clothing.