bag in box packaging Manufacturing.How much do you know about food packaging?

In daily life, the close relationship between food packaging and food has long been recognized by people. Whether in shopping malls, supermarkets, or every household, beautifully designed and convenient food packaging can be seen everywhere. In fact, food packaging is like personal clothing for food. It not only protects food from contamination or damage caused by external factors, but also facilitates the storage, transportation, and sales of food. In most cases, the unique and beautiful appearance of food packaging is also aimed at attracting consumers' attention and arousing their purchasing desire. Food packaging has become an integral part of food in modern society.

So, what are food packaging materials? Food packaging materials and containers refer to paper, bamboo, metal, enamel, ceramics, plastics, rubber, natural fibers, chemical fibers, glass products used for packaging and holding food, as well as coatings in contact with food. Internationally, all materials and products that come into contact with food, such as food packaging, food containers, and auxiliary materials, equipment, and tools used for food processing, are collectively referred to as food contact materials. At present, there are many types of food containers and packaging materials allowed to be used in China, mainly including the following 7 types:

1. Plastic products: such as plastic milk bottles, disposable plastic lunch boxes, disposable plastic water cups, etc;

2. Rubber products (including natural rubber and synthetic rubber): such as nipples, pressure cooker sealing washers, etc;

3. Ceramic and enamel products: such as ceramic tableware, enamel water cups, etc;

4. Aluminum, stainless steel, iron products: such as aluminum pots, aluminum foil, stainless steel pots, iron pots, etc;

5. Glass products: such as glass tableware, glass water cups, etc;

6. Paper products: such as disposable paper cups, food packaging boxes, etc;

7. Composite film products: such as composite film bags.

Food packaging materials of different materials have their own characteristics and advantages and disadvantages due to their different materials. For example, plastic materials are cheap and lightweight, metal materials are not easily broken, paper and plant fiber materials are easy to degrade, and so on. However, no matter which type of food container or packaging material is chosen, the fundamental principle that it may cause pollution to food and pose a threat to human health cannot be ignored. The safety hazards of food containers or packaging products made of different materials also vary. The main problem with metal kitchenware and dining utensils such as aluminum, stainless steel, and iron products is the migration of heavy metals such as nickel, chromium, cadmium, and lead into food during the cooking process due to quality issues or improper use of the kitchenware itself; The main problem with ceramic products is the excessive migration of lead and cadmium; However, plant products such as natural fibers and paper products mainly suffer from microbial contamination or excessive sulfur dioxide levels.

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