In the food packaging plastic bag industry, composite packaging bags are common or commonly used. So what is a composite bag, what materials are available, the following editor will take everyone to understand:
The large composite bag is suitable for vacuum packaging or general packaging of food, electronic products, chemicals, medicine, tea, precision instruments and cutting-edge defense products. It has the advantages of high strength, corrosion resistance, not easy to break, non-toxic and tasteless, moisture-proof, opaque, anti-ultraviolet, anti-static, etc. It is widely used in the packaging of powder and granular materials. The process is divided into: side sealing bag, bottom sealing bag, middle sealing bag, three-side sealing; the material is BOPP/LLDPE two-layer composite; common raw materials are: OPP, PE, POF, PPE, PP, etc.
Composite bag
1. Material: BOPP/LLDPE two-layer composite bag: Features: moisture-proof, cold-resistant, low-temperature heat-sealing strength; use: 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: BOPP/VMCPP composite bag: Features: moisture-proof, oil-resistant, oxygen-proof, shading, good stiffness; use: all kinds of dry food, fried food, potato chips.
4. Material: BOPP/VMPET/LLDPE three-layer composite: Features: moisture-proof, oxygen-proof, shading; Uses: all kinds of food, metric snacks, snacks, tea.
5. Material: PET/CPP two-layer composite bag: Features: moisture-proof, oxygen-proof, fragrance-preserving, high-temperature resistance; use: cooking, alcoholic foods, and flavored foods.
6. Material: PET/PET/CPP three-layer composite: Features: moisture-proof, high temperature resistance, easy sealing; Uses: powder packaging, soy sauce, liquid, shampoo.
