Performance of food packaging plastic products

The use of plastics as packaging materials, that is, the emergence of plastic products for food packaging, is a sign of the development of modern packaging technology. It is the fastest growing new packaging material in the world for 30 years. It is widely used in food packaging and has largely replaced glass. Traditional packaging materials such as metal and paper have become the main packaging materials for food sales and packaging.

The superiority of plastics for food packaging, especially thermoformed products, is reflected in the following five aspects.

One, light

The relative density of plastics is only 1/8 to 1 for steel, 1/3 to 2/3 for aluminum, and 1/3 to 2/3 for glass, and the strength of the material is calculated to be high, resulting in packaging containers and products. Light weight, convenient storage, sales, but also easy to carry and use. The good mechanical properties of plastic packaging material make it convenient for molding and packaging operations, and it is easy to realize high-speed automation of food packaging.

Second, with good barrier properties

The selection of suitable plastic packaging materials can meet the requirements of airtight, fragrant, waterproof, moisture-proof and other sealing properties such as food packaging, and also meet the requirements for breathability of fresh-food fresh-keeping packaging.

Third, the packaging product molding process performance is good

It can be processed into films, sheets, ribbon fabrics and various shapes of containers to meet the needs of various physical food packaging and other various packaging needs. The plastic packaging material has good heat sealing and sealing properties, and the frog is easy to be combined with other materials to make up for the defects of the single material packaging performance, and to construct a composite packaging material with excellent comprehensive packaging performance.

Fourth, good decorative performance

Plastics can be made into transparent packaging materials to reflect the visibility of the packaging. It can also give beautifully packaged designs and vivid colors by means of coloring, printing, etc., and improve the display effect of goods, thus establishing a product image and promoting sales.

Fifth, the chemical stability is better

Health and safety. Plastics can withstand the corrosion of common acids, alkalis, salts, and greases. Most plastic packaging materials can meet the hygienic requirements for food packaging. With the development of modern science and technology, the variety of plastics is increasing, which greatly promotes the development of new composite materials and their application on packaging.

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