Adhesive Protective glasses PET Plastic Film Roll

How to produce the PET Plastic Film Roll, PET roll for adhesive Protective glasses, pet film?
Excessive heating will cause crystallization and appear spontaneous; if it is excessively raised, that is, less material, one will also cause cold spontaneous. If there is a layered phenomenon of the colored bottle, the heating does not completely penetrate the preform and the preform temperature: the temperature is required to be 95 ° C, the orientation temperature is too low, the bottle stress is white, and the bottle is too high to produce a mist. Preform cooling should be fast, otherwise it will affect transparency.

Pressure bottles should meet the requirements of stress test and pressure test at the same time. The stress test is an internal quality control to prevent cracking and leakage of the molecular chain caused by the degradation of the molecular chain during the ‘t’ of the contact between the PET Plastic Film Roll, PET roll for adhesive Protective glasses, pet film and the lubricant (alkaline). Burst l (lJ ‘) is used for quality control after gas. In order to meet these two needs, the thickness of the center point should be controlled within a certain range. Good pressure resistance is poor; ‘Buxin point is thick, pressure resistance test is better, stress test is poor. Of course, the result of stress test also has a lot to do with the accumulation of material in the transition zone of the central point, which depends on the actual situation Adjust with experience.