Improvements in a method for the Thermal formation of a film of Poly (ethylene Terephthalate).

摘要

Method for forming a film of Poly (ethylene Terephthalate).It includes the following Operations: First, expelling Air existing in the space between the mold surface and the Thermoplastic sheet through a Vent located on the surface of the mould; Second,The Thermoplastic sheet is in contact with the surface of the mold before the crystallinity of Poly (ethylene Terephthalate) from 15; and finally, the article desmoldea Thermoforming.