1. Requirements for food-grade packaging bags Food-grade packaging must meet the protection needs of all aspects of food 1. Food packaging requirements can block water vapor, gas, grease and organic solvents; 2. According to the special requirements of actual production, add functions such as anti-rust, anti-corrosion and anti-electromagnetic radiation; 3. To ensure food safety and pollution-free while extending the shelf life of food. The main materials and auxiliary materials used in food-grade packaging must not contain substances that are harmful to the human body, or the content is within the range allowed by national standards. Due to the particularity of food-grade plastic packaging, products can only be approved and put on the market if they strictly comply with production specifications. All inner packaging bags in contact with food strictly comply with the production process of food-grade packaging bags, which is not only safe and hygienic, but also ensures delicious original flavor. Instead of food-grade packaging bags, the main difference in terms of material composition is the use of additives. If an opening agent is added to the material, it cannot be used for food packaging. Â 2. How to distinguish whether the packaging bag is food grade or non-food grade? Observe first when you get the packaging bag. The new material has no odor, good hand feel, uniform texture and bright color. Only when these are achieved is it a safe and hygienic food-grade environmentally friendly good bag. Â 3. Classification of food packaging bags According to the scope of its application, it can be divided into: Ordinary food packaging bags, vacuum food packaging bags, inflatable food packaging bags, boiled food packaging bags, cooking food packaging bags and functional food packaging bags. There are also many types of materials: plastic bags, aluminum foil bags, and composite bags are relatively common. The vacuum bag is withdrawn all the air in the sealed package, the bag is maintained in a highly reduced pressure state, the air equivalent rare hypoxic effect, no microorganisms living conditions, fresh foods in order to achieve an object of rot disease occurrence. Food aluminum foil bags are made of aluminum foil bags by dry compounding aluminum and other high barrier materials according to the unique properties of aluminum. The aluminum foil bag has good functions of moisture resistance, barrier, light protection, permeability resistance and beautiful appearance. Food-grade compound bags are moisture-proof, cold-resistant, and low-temperature heat-sealable. They are mostly used for instant noodles, snacks, frozen snacks, and powder packaging. garden decoration, garden gifts, garden tools HISMOK(SHENZHEN)TECHNOLOGY CO.,LTD , https://www.fzwilltrade.com