Material of food packaging bag

The main materials are: PVDC (polyvinylidene chloride), PE (polyethylene), PA (nylon), EVOH (ethylene/vinyl alcohol copolymer), aluminized film (aluminum + PE), etc.
Various materials have different properties and different uses. Generally, food packaging bags are not a single material, and are generally multi-layer composite.
However, the packaging bag is not a single material. Generally, the inner layer is PE, the outer layer is PA, and the middle may be EVOH, or PVDC, etc., which is used for aluminized film.
Reason: PE has better heat sealability and is easy to seal.
PA has good printability and is used in the outer layer to print beautiful images.
PVDC and EVOH have good barrier properties and prevent oxidation. The aluminized film has good light-closing properties and is suitable for products that are difficult to see.
The company pays attention to the brand and quality of raw and auxiliary materials, and produces high quality products with high quality raw materials and mature technology. "Quality for survival, innovation for development", strictly implement the ISO9000G series of standards, so that quality management and international standards, seize the opportunity, keep making progress, products to expand the market at home and abroad, striving for a first-class brand. Contact: Mr. Xin, mobile phone 13637026093.