i enjoy the film and manufacturing method of the polyester

摘要

this invention is a manufacturing method of polyester film and enjoy them on. in a 90 degrees and 100 degrees, 95 or in a second direction, and the implementation of the second phase of the extension direction, and the 100 or 110 degrees in the preheating stage, the preheating dry film 110 and 140 degrees in the transverse direction of the uc5f0uc2e0uc2dc, horizontal drawing film 210 and 240 degrees and held in fixed transverse relaxation by 1.5% after 180 degrees of the cooling zone is passed or not, and the second fixed region 210 degrees with a transverse relaxation to 1.2% in the transverse direction, and the relaxation rate of the uc2dcud0a8 film stretching machine. 0.012 meters / minutes quickly is to take the right steps, including the method of the system structure of the polyester film is to enjoy the film thickness of the refraction rate, the refraction rate of the average 1.027 or 1.074, enjoy and don't 1.165 1.178 1.396 or 1.403, proportion, and the guide 1.05 or 1.25 range with the coefficient of thermal expansion, low temperature u00b1 is 1.5 x 10 - 5 / - 0.5 degrees and 70 degrees, and 60% of the temperature and humidity conditions, father is old easy to 96 hours to deal with 0.05% following thermal shrinkage film is, the sex is good.