Food packing bag is what material release date: 2018 -
23 what is food packaging
materials what is a food packaging materials, food packaging material is used in the manufacture of food packaging bags, constitute the floorboard of the packaging bags.
2 according to the packing material source points: 1, plastics (
Polyethylene, polypropylene, polystyrene, cross-linked with cyanogen amine, etc. )
2, 3, paper and paper board 4, metal composite film three according to the packaging function, such as: 1, convenient packing 2, display 3, transport packing 4, four common food packaging materials, plastic, composite membrane, metal, glass, ceramics, paper, wood, bamboo rattan, natural plant fiber, composite materials, etc.
Five common PE, PVC, etc. What is material?
Our common PE, PC, PVC, ABS, POM, PP, PS, PMMA is belong to the plastic material.
PE, PC -
Polycarbonate, PP. -
Pp, PVC -
PVC, PS -
Pom, ABS -
Acrylonitrile, butadiene and styrene terpolymer, PMMA -
Poly (methyl methacrylate, commonly known as organic glass.
Now we seldom use the packing bag of plastic material, because of damage to the environment and harm to human body health, below mainly on food packaging composite packaging materials.
6 what is called composite flexible packaging materials?
Refers to two or more than two layers of different varieties, and through certain technical combination of multilayer materials, is now the main varieties of food packaging materials and international development direction.
Seven composite material of flexible packaging materials and basic requirements of composite flexible packaging material although the species is numerous, but its performance mainly depends on the number of base material and performance.
The characteristics of composite flexible packaging materials requirements 1, integrated packaging performance is better in combination with all the advantages of the base material, and overcomes the drawback of them 2, good health security in general will printing adornment layer in the middle (
The structure of food packaging materials requirements 1, the inner layer (
The level of direct contact with food)
Non-toxic, tasteless, good oil resistance, chemical resistance, heat sealing and bonding resistance, such as: PE, CPP, EVA2, outer requirements (
In the outside level)
The optical performance is good,
Look more beautiful)
, good printing, wear-resistant heat-resistant, has the strength and rigidity, such as: PA, PET, BOPP, PC, aluminum foil and paper.
3, the middle layer with high barrier property (
The air resistance, the resistance, moisture-proof and shading)
, such as aluminum foil and PVDC food packaging materials
The representation method of composite packaging materials such as: PET/VMPET/PE from left to right in turn for outer layer, middle layer and inner layer material.
The outer PET provide printing performance;
Intermediate VMPET provides the barrier property and rigidity;
Inner PE provide heat sealing performance.
Food packing bag is what material to believe we had certain understanding, more information please pay attention to our packing.
A: what is the material of aluminum foil bag next article: packing bags of food production processes have
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