Film stretched biaxially of poly (hexamethylene adipamide) and its method of preparation

摘要

P film stretched biaxially of poly (hexamethylene adipamide) and its method of preparation. / p & & p & this film has a refractive index of 1,560 at least, both in the longitudinal direction and in the transverse direction, and an absorbance in the ultraviolet, which does not 0,4 exceeds. It has, then, a factor of shrinkage which does not exceeds 5 in both directions. / p & & p & food industries. / p