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Material, classification, characteristics and uses of composite bags

Material, classification, characteristics and uses of composite bags

2021-12-31 16:18:21

There are many kinds of packaging materials and packaging bags on the market, and there are too many to list. Today, I will briefly introduce several common packaging materials, two-composite and three-composite, composite bags are usually photocopying, and those printed in the middle of the two films are generally tear-off composite bags. There will be two layers or one layer on the sexual side. This is a composite bag. The ordinary bag is printed on the surface of one layer, and the printing on it can be scraped off with a small input.
 
The material combination of composite bag and its characteristics and uses:
 
1. Material: BOPP/LLDPE two-layer composite
Features: moisture-proof, cold-resistant, low-temperature heat-sealing strength
Uses: instant noodles, snacks, frozen snacks, powdered packaging, etc.
 
2. Material: BOPP/CPP two-layer composite
Features: moisture-proof, oil-resistant, high transparency, good stiffness
Uses: instant noodles, biscuits, candies, all kinds of light foods
 
3. Material: BOPPVMCPP complex
Features: moisture-proof, oil-resistant, oxygen barrier, shading, good stiffness
Uses: all kinds of dry food, fried food, potato chips
 
4. Material: BOPPVMPET/LLDPE three-layer composite
Features: moisture-proof, oxygen-proof, shading
Uses: all kinds of food, rice snacks, snacks, tea
 
5. Material: PET/CPP two-layer composite, retort vacuum packaging bag
Features: moisture-proof, oxygen-proof, fragrance-preserving, high temperature resistance
Uses: cooking, alcoholic foods, scented foods
 
6.  Material: PET/PET/CPP three-layer composite
Features: moisture resistance, high temperature resistance, easy sealing
Uses: powder packaging soy sauce, liquid, shampoo
The composite bag cannot be scraped off. Composite bags are expensive, while ordinary plastic bags are cheap. Plastic composite bags are generally composed of BOPP and co-extruded films, BOPP and PET, and so on.There are many kinds of packaging materials and packaging bags on the market, and there are too many to list. Today, I will briefly introduce several common packaging materials, two-composite and three-composite, composite bags are usually photocopying, and those printed in the middle of the two films are generally tear-off composite bags. There will be two layers or one layer on the sexual side. This is a composite bag. The ordinary bag is printed on the surface of one layer, and the printing on it can be scraped off with a small input.
The composite bag cannot be scraped off. Composite bags are expensive, while ordinary plastic bags are cheap. Plastic composite bags are generally composed of BOPP and co-extruded films, BOPP and PET, and so on.
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