Food packaging

Food packaging (food packaging) is an integral part of food products. One of the major projects in the food industry. It protects the food, the food before leaving the factory to the hands of consumers in the process of circulation, prevent biological, chemical or physical damage to external factors, it can also maintain a stable quality of the food itself, it is also convenient food, food first appearance, attract consumer image, with the material cost value. Therefore, food packaging process is an integral part of food manufacturing systems engineering. However, the versatility of food packaging process makes it relatively independent of the self system.
According to the food packaging packaging materials as metal, glass, paper, plastic, composite materials, can be divided into packaging cans, bottles, bags, boxes, bags, roll, etc., can be divided into the way of packing canning, bottling, envelope, bags, wrapping and filling, the whole set sealing, labeling, printing, etc.; according to the product level is divided into two levels of packaging, packaging, packaging three...... Outer packing.
Due to more attention to food safety, higher requirements, some countries to strengthen the management of food packaging regulations. In order to promote the new development of food packaging, the implementation of the standards of nutrition, the regulations of indirect additives and so on.
Food packaging classification methods. The techniques are divided into: waterproof moisture-proof packaging, packaging, packaging, mouldproof packing, packaging, packaging, frozen air microwave sterilization packaging, aseptic packaging, inflatable packaging, vacuum packaging, packaging, blister packaging, packaging, packaging, packaging and other cooking bags stretching. All kinds of packaging are made of different composite materials, the packaging characteristics are corresponding to different food requirements, can effectively protect the quality of food.

The use of plastic packaging of food products mainly includes four industrial sectors: the first industry refers to the production of plastic resin and film. The second industry is flexible and rigid packaging materials processing industry, the third industry is the packaging machinery manufacturing industry, the fourth industry is the food processing industry. In the first industry is the use of oil, coal, natural gas and other raw materials, the synthesis of low molecular compounds, and then synthesis of various resins. The utility model can be processed into a single or a plurality of layers of composite films, which is used for food packaging in food processing plants.

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