spandex yarn manufacturing process Fundamentals Explained
Chemical route to polyurethane polymer used in production of spandex. Spandex is mainly made up of a polyurea derived from the response of the diol in addition to a diisocyanate. Two lessons of spandex are described because of the "macrodiols". A person course of macrodiols is the oligomer made from tetrahydrofuran (i.Double covered yarn contains a