5 TIPS ABOUT SPANDEX YARN COMPOSITION YOU CAN USE TODAY

The crucial attribute of such molecules is that they are extended and flexible. This part of the spandex fiber is chargeable for its stretching characteristic. Another pre-polymer employed to make spandex is a polymeric di-isocyanate. This is a shorter chain polymer, that has an isocyanate (-NCO) team on the two ends. The principal attribute of thi