5 ESSENTIAL ELEMENTS FOR SPANDEX YARN COVERING MACHINE

The vital characteristic of these molecules is that they're lengthy and versatile. This A part of the spandex fiber is chargeable for its stretching characteristic. The opposite pre-polymer applied to make spandex is really a polymeric di-isocyanate. That is a shorter chain polymer, that has an isocyanate (-NCO) group on both equally ends. The prin