INDICATORS ON SPANDEX YARN HUB YOU SHOULD KNOW

Chemical route to polyurethane polymer Utilized in creation of spandex. Spandex is especially composed of a polyurea derived from your response of the diol and a diisocyanate. Two classes of spandex are outlined because of the "macrodiols". 1 course of macrodiols is the oligomer produced from tetrahydrofuran (i.Double covered yarn contains a spande