Then, adding some transparent nucleating agent or polypropylene anti-reflection master batch into the raw material formula can increase the transparency and crystallization speed of PP products, reduce the holding time and improve the production efficiency. You can also switch to a highly transparent PP brand. Just try it. Personally, I think the material is very important. Different materials will release different gases or substances. Some experts pointed out that many cooked food snack boxes sold in supermarkets are not resistant to high temperature. If heated in a microwave oven, it may release the carcinogen styrene monomer! Let's take a closer look at the packaging of fast food. The transparent plastic cover is printed with the word PP, indicating that the material is 6 # polystyrene plastic. The maximum thermal resistance is only 90 degrees Celsius. When heated to 70 degrees Celsius, it may deform and release the carcinogen styrene monomer. If eaten for a long time, it will harm the liver and kidney of Lanzhou Lamian Noodles Lang. Experts remind that the best way is to take food home and heat it on a plate; If microwave heating is used in the supermarket, remember to take off the lid of the fast food box, so as not to lose your health for convenience. The recommended main materials are PP (polypropylene) and BOPS (biaxially oriented polystyrene), which have excellent air tightness, transparency, high impact strength and good processability, are non-toxic and harmless, have excellent recycling function, and are beneficial to environmental protection. The packaged products processed by it are stable in shape, beautiful and crisp, and have good appearance display effect. The above is my personal opinion, I hope it will help you.