EXAMINE THIS REPORT ON COVERED SPANDEX YARN

The crucial function of such molecules is that they're very long and versatile. This Portion of the spandex fiber is responsible for its stretching attribute. One other pre-polymer utilised to supply spandex is a polymeric di-isocyanate. It is a shorter chain polymer, that has an isocyanate (-NCO) team on equally finishes. The principal characteris