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Food packaging have any requirements for packing technology - protection function is suitable for packaging materials

Author:Food packaging bag supplier    Time:16/10/13    Click:

Food packaging have any requirements for packing technology - protection function is suitable for packaging materials

Second, choose suitable protection function of packaging materials
Traditional packaging materials mainly glass, metal tins, paper boxes, cartons.Modern food packaging materials mainly include plastic, paper, composite materials (plastic/plastic, plastic, paper, plastic/aluminum foil/paper/plastic and other various types of multilayer composite materials), etc.
1, composite materials, composite materials is most species, the most widely used a kind of soft packing material.At present there are more than 30, used for food packaging plastic and plastic multi-layer composite material with hundreds of.Composite materials with 2-6 layer, but the special need of 10 or more multilayer.Plastic, paper or tissue paper machine, aluminum foil backing material, such as composite or scientific and reasonable compatibility, almost can meet the requirements of various food for packing.
2, plastics used in food packaging in China is up to 15, 6 species, such as PE, PP, PS, PET, PA, PVDC, EVA, PVA, EVOH, PVC resin, ionic bonds, etc.The high resistance of oxygen with PVA, EVOH, PVDC, PET, PA, etc., high resistance of wet PVDC, PP, PE, etc.;Ray irradiation resistance such as PS aromatic nylon;Low temperature resistance, such as PE, EVA, POET, PA, etc.;Oil resistance as well as the mechanical properties of good such as ionic bonding resin, PA, PET, etc., high-temperature sterilization and low temperature resistance, such as PET, PA, etc.All kinds of plastic monomer molecule structure is different, different degree of polymerization, the amount and type of additives is different, the performance is also different, even if the same plastic different type sex to pledge will have difference.Therefore, must according to the requirements to choose the right plastic or the combination of plastic and other materials, improper selection may cause the loss of food quality and even lose the edible value.
3 kinds of modern packaging, paper and cardboard mainly in a variety of processing potatoes (board), composite paper, laminated paper (board) and so on, such as polymer materials processing paper, wax paper processing, oil processing paper, glassine paper, parchment, aluminized paper, paper/aluminum foil laminated paper, etc.Most dosage in transport packaging, corrugated board, corrugated carton, pallet almost most instead of wooden cases.Honeycomb carton is the latest high strength cardboard container.In addition, one thing should be paid attention to, aluminized paper, aluminized plastic and paper/aluminum foil laminated material, plastic/aluminum foil laminated materials of different internal structure, properties, cost and other aspects, should be selected according to different protection demands and costs properly.

Food packaging have any requirements for packing technology - protection function is suitable for packaging materials

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