THE SINGLE BEST STRATEGY TO USE FOR SPANDEX YARN PRICE

The important characteristic of those molecules is that they are prolonged and versatile. This Component of the spandex fiber is answerable for its stretching characteristic. The other pre-polymer utilized to create spandex can be a polymeric di-isocyanate. This is a shorter chain polymer, which has an isocyanate (-NCO) team on both equally ends. T