Due to the very different nature of food, there are different results in the selection of printed plastic bag materials, which also constitutes the increasing variety of packaging materials touched by the food packaging profession today.
The printing plastic bag material has the advantages of light weight, convenient transportation and sale, good chemical stability, easy processing and decoration, and good protection to food. However, there are still some questions about the cleanliness and safety. For example, the contamination on the outer surface of plastic packaging will lead to the contamination of food with dust and impurities. Plastic packaging materials themselves toxic monomer residue, toxic additive residue, etc. In addition, improper recall or disposal of packaging materials will lead to food contamination when reused. The packaging materials of plastic bags are being carried out in a pollution-free and safe direction.