Different foods should choose food packaging bags with different material structures according to the characteristics of food, so what kind of food is suitable for what kind of material structure as food packaging bags, customers who need to customize food packaging bags can refer to it.
l 1. Puffed snack food packaging bags
Product requirements: oxygen resistance, water resistance, light protection, oil resistance, fragrance retention, good appearance, bright color, low cost.Design structure: BOPP/VMCPP
Reason: BOPP and VMCPP are both scratched, BOPP has good printability and high gloss. VMCPP has good barrier properties, retains fragrance and moisture. CPP is also more resistant to oil.
l 2. Biscuit packaging bags
Product requirements: good barrier, strong shading, oil resistance, high strength, odorless and tasteless, and the packaging is quite scratchy.
Design Structure: BOPP/EXPE/VMPET/EXPE/S-CPP
Reason: BOPP has good rigidity, good printability and low cost. VMPET has good barrier properties, protects against light, oxygen and water. S-CPP has good low-temperature heat sealability and oil resistance.
l 3. Green tea packaging bags
Product Requirements:
Anti-deterioration, anti-discoloration, anti-taste, that is, to prevent the oxidation of protein, chlorophyll, catechuic acid, and vitamin C contained in green tea.
Design structure: BOPP/AL/PE, BOPP/VMPET/PE, KPET/PE
Reason: AL foil, VMPET, and KPET are all materials with excellent barrier properties, and have good barrier properties against oxygen, water vapor, and odors. AK foil and VMPET are also very light-resistant. The price of the product is moderate.
l 4. Coffee packaging bags
Product requirements: anti-water absorption, anti-oxidation, resistant to the hard lump of the product after vacuuming, and retain the volatile and easily oxidized aroma of coffee. Design structure: PET/PE/AL/PE, PA/VMPET/PE Reason: AL, PA, VMPET have good barrier properties, water and gas barriers, and PE heat sealability.
