How to choose food packaging bags correctly

The relationship between food packaging and food is very close, and to a great extent, the heat shrinkable bag food packaging has become an inseparable and important part of food, it is like food close-fitting clothing, thermoplastic packaging film as a modern food industry The last process of food safety, the important role of facilitating food storage, transportation, sales and publicity, will also have a direct or indirect impact on food quality. As the "protector" of food, ensuring food hygiene is one of the most important responsibilities of packaging. Heat shrinkable bag

Because food packaging is in direct contact with food, the ingredients of many materials may enter the food. This process is generally called "migration". Migration is a normal physical phenomenon, which can occur in many types of food packaging, and there is almost no way to avoid it. Therefore, the basic requirement for food packaging is that no harmful substances can be released into the food, and no harmful substances can be released into the food. The ingredients react. Poor food packaging, not only can't play the role of food "protector", but will turn into food contaminants, posing a threat to human health.

Common food packaging materials on the market mainly include paper, plastic, metal, wood, ceramics, glass, bamboo, cloth, etc. Among these food packaging materials, plastic may be worrying.

Plastics are favored by many food companies due to their rich sources of raw materials, low cost, good chemical stability, and strong processing and decoration. But people’s worries are not entirely unreasonable. The use of plastic packaging for food does have some problems that may affect people, especially after the plasticizer storm in Taiwan, the term "plasticizer" is gradually becoming Known by people.

Food packaging bags have developed many functions, such as high-temperature cooking and vacuuming, since they were originally used for convenience in keeping fresh and storing food. In the process of continuous development of food packaging bags, food packaging manufacturers have also continued to emerge. Faced with the food packaging bags produced by many food packaging manufacturers on the market, the choice is also worth paying attention to.

First of all, the packaging film of food packaging bags produced by food packaging manufacturers should meet national standards. Before purchasing food packaging bags, it is clear what material food packaging bags are needed. For example, the structure of food packaging bags used for vacuum packaging should be selected. There is a layer of PA material to ensure the puncture resistance of the food packaging bag, and will not cause some problems such as air leakage and bag breakage of the food packaging bag, or when the food packaging bag uses seven-layer co-extrusion film, the material selection structure should have at least two layers of PA Materials to avoid cutting corners by food packaging manufacturers. In this regard, it is very important to choose a professional and regular food packaging manufacturer when buying food packaging bags.

Secondly, since food packaging bags are in direct contact with packaged foods, food packaging bags made of green and environmentally friendly materials should be selected when purchasing to prevent solvent penetration and pollution of food; and for consumers and packaging aesthetics, the surface of food packaging bags It should be as flat as possible without scratches, scalds, bubbles and wrinkles, and no false seals; the printing of food packaging bags also requires attention. It is strictly forbidden to use benzene solvents to avoid contaminating the food; the production environment of food packaging manufacturers should also be strictly observed to avoid Food packaging bags are polluted and damaged during the bag making process due to production environment problems.

The correct purchase of food packaging bags is very important for any food manufacturer. As market competition becomes more and more fierce, it is especially important to be wary of some food packaging manufacturers who are shoddy. If food packaging bags cause food Safety issues not only damage the reputation of the company, but also endanger the health of consumers.