polyester fiber. these bobbins are constructed of a continuous filament polyester fiber. yards of thread per bobbin. bobbins per box. style "l" refers to the diameter of the bobbin....
"with our initiative to produce recycled pet yarns, we are not only creating a valuable addition to our product portfolio, but also helping to protect the environment by reducing pet waste and co emissions," said yasar kiray, business development manager, tff. posted february , source: the filament factory...