Introduction to food packaging bags

Food packaging bag is an integral part of food commodities. One of the major engineering processes in the food industry. It protects the food, makes food to consumers' hands in leave factory circulation process, prevents biological, chemical, and physical external factors of the damage, it also can keep the food itself a stable quality function, its edible convenience food, food is the first performance appearance, attract consumer's image, with the value beyond the material cost. Therefore, the food packaging process is also an integral part of the food manufacturing system engineering. But the versatility of the food packaging process makes it have a relatively independent system.

The process of using plastic to package food products mainly includes four industries: The first industry refers to the production of plastic resins and films. The second industry is the flexible and rigid packaging materials processing industry, the third industry is the packaging mechanized production industry, the fourth industry is the food processing industry. In the first industry, petroleum, coal, natural gas, and other raw materials are used to synthesize polymerized low-molecular compounds, which are then polymerized into various resins. From this processing into a single or multi-level composite film, for food processing plants for packaging food.

My company has done the food packaging generally has the following categories; Packaging bags of tea/coffee, seafood/fish and other aquatic products, frozen food packaging bags of beef balls/dumplings,dry goods/miscellaneous grains/dates/walnuts/pine nuts, snack food packaging bags, pet food packaging bags, agricultural products packaging bags and so on.

Food has always been people's favorite, food packaging is more important.

1. Protect food and extend the shelf life of food

(1) To protect the appearance of food quality to produce certain economic benefits

Food in the whole circulation process, through handling, loading, and unloading, transportation, and storage, easy to cause damage to the appearance of the quality of food, food after internal and external packaging, can be a very good protection of food, so as not to cause damage.

(2) To protect the original quality of food, extend the shelf life of food

The food itself has certain nutrients and moisture, which are the basic conditions for the production and reproduction of bacteria, mold, yeast, and so on. When the temperature of food preservation is suitable for their reproduction, it will cause food spoilage and deterioration. If the food adopts aseptic packaging or high-temperature sterilization after packaging, cold storage, and other processing, it will prevent the occurrence of food corruption, prolong the shelf life of food

Again, food in circulation, direct exposure to sunlight and light, and at high temperature, are easy to make food oxidation. Discoloration, odor deterioration, and other phenomena, such as the use of the corresponding vacuum packaging, inflatable packaging technology, and the corresponding packaging materials. It can also effectively extend the shelf life of packaged food.

2. Packaged food facilitates circulation

Some packages are containers for food circulation. For example, the bottles, cans, and bags of bottled wine, beverages, canned milk powder, etc., are the packaging containers. It is also a moving tool for food circulation and sales. It brings great convenience to food circulation.

3. Increase the variety of convenient food, convenient for consumers some convenient food, with local flavor, it can only be circulated after packaging. Make the famous and excellent food exchange, increase the variety of People's Daily food. Moreover, fresh food, such as quick-frozen dumplings, packaged meals, and preservation technology, can be convenient for people to eat

4. Prevent food contamination Convenient cooking food, using special packaging technology

When food is in circulation, it should be in contact with containers and hands, which is easy to make food contaminated. After packaging, food can avoid this phenomenon and is conducive to the health of consumers.

5. Promote the rationality and planning of food circulation

Some fresh food, easy to spoil, not easy to far side transportation, such as fruits and aquatic products, made in the origin of a variety of canned, can reduce waste, reduce transportation costs, and can promote the rationality of food circulation and planning.

6. Promote food competition and increase food sales