The difference between polyethylene film and polypropylene film
May 13, 2019
Polyethylene film and polypropylene film are films which are firstly processed and then extruded and blown. In fact, they can be used for packaging food and daily necessities, but they are different according to their own nature.
Generally, polyethylene film is excellent in low-temperature resistance, so in food packaging, it is often used for packaging frozen foods and fresh foods. The polypropylene film has high heat resistance, so the polypropylene film blown CPP film can often be used to make retort pouches and other sterilizable and sterilizable packaging. In general, polypropylene film has better transparency than vinyl film. Therefore, most high-end clothing packaging and fine food packaging use polypropylene film.
Most of the shopping bags on the market are polyethylene products, and the toughness of the polyethylene film is superior to that of the polypropylene film, and the production cost is low. Polypropylene has high transparency and excellent impact, and is often used as an epidermis film, such as book packaging. At this stage, the commonly used polyethylene packaging film is LDPE, low-pressure polyethylene film, which is low in cost and has good moisture resistance, chemical stability and heat-sealing property, and often requires less demanding food packaging products. www.xmlfilm.com
