In daily life, the basic elements of life are nothing more than food, clothing, housing and transportation, and among the four elements, "food" is undoubtedly the top priority. With the continuous improvement of living standards, people are paying more and more attention to food safety. Whether the plastic bags used to package food meet food-grade standards has become a common concern for many people. What are the general characteristics of food plastic bags? Let’s take a look with the editor of Dalian Bag Making Products.

Food plastic bags are generally divided into ordinary food packaging bags, vacuum food packaging bags, inflatable food packaging bags, boiled food packaging bags, retort food packaging bags and functional food packaging bags. The materials are also diverse, and common food grade Plastic bag materials include: PE (polyethylene), aluminum foil, nylon and composite materials, etc.

In order to ensure that food is fresh and free from rot, food-grade plastic bags have some common characteristics regardless of category and material. First, they are required to completely block organic solvents, grease, gases, water vapor, etc.; second, they have excellent permeability resistance, It is moisture-proof, cold-resistant, heat-resistant, light-proof and insulating, and has a beautiful appearance; third, it is easy to form and has low processing cost; fourth, it has good strength, and the strength performance per unit weight of the plastic packaging bag is high. Impact resistant and easy to modify.

In addition to the above characteristics, for consumers of edible products, food-grade plastic bags also have some characteristics that come from hard requirements. First of all, the main materials and auxiliary materials used generally contain few chemicals harmful to the human body, or according to the Due to the special needs in the actual production process, the content of chemical substances is within the allowable standard range of the country, and the chemical stability is strong; food-grade plastic bags sometimes also have corresponding added anti-corrosion, anti-rust and anti-electromagnetic radiation functions to ensure that they are safe from all angles. Food safety and hygiene.

Since food-grade packaging is inseparable from people's lives, major manufacturers must strictly abide by production regulations and specifications and comply with the food-grade plastic bag production process before their products can be put into the market through review.