THE SINGLE BEST STRATEGY TO USE FOR SPANDEX COVERED YARN

The critical attribute of these molecules is that they are prolonged and flexible. This A part of the spandex fiber is liable for its stretching characteristic. One other pre-polymer utilised to supply spandex is really a polymeric di-isocyanate. This is the shorter chain polymer, that has an isocyanate (-NCO) group on both of those finishes. The p