Packing tape is a new type of environmentally-friendly material that is popular in the packaging industry, but many people often come to consult the thorny problems of packing products with brittleness. According to professionals, the reason why this happens is that the main reason is this.
Because PET is a kind of water-sensitive plastic, the long-term heating and drying and the friction heat of the single-screw extruder will cause molecular degradation, breaking of the molecular chain, resulting in poor physical properties of the produced plastic steel strip and brittle products. If the equipment status is: single-screw 3-section-5 section machine, drying temperature is about 190°C, bake for 2-3 hours, processing temperature is 290°C-300°C, in this case, it is easy to cause the packing belt to be brittle. problem.
Therefore, knowing the reason, it can be solved fundamentally.
For more packaging information, please pay attention to China's packing belt trading network, there is a demand for packaging can contact QQ, electricity
Printed Shirts,Digital Print Shirt,Custom Made T Shirts,Printed T Shirts For Men
Shaoxing Shanhe garments co.,ltd , https://www.sx-sanhe.com