Generally, the selection of food packaging bag materials is based on the purpose to determine the material combination. Here are some common material combinations to share with you:
1. Puffed food bag
Material combination: BOPP18 / VMCPP25 BOPP18 / VMPET12 / PE40
Packing method: inflatable packaging
Performance requirements: air tightness, shading resistance, oil resistance
2. Meat products, fish product bags
Material combination: PA / PE PET / PE AMTTOPP / PA / PE
Packing method: evacuation, freezing
Performance requirements: barrier property, puncture resistance, freezing resistance, air tightness
3. Cooking food bags
Material combination: PET / RCPP PA / RCPP PET / AL / NY / RCPP PET / NY / AL / RCPP
Packing method: high temperature sterilization 121 degrees
Performance requirements: barrier properties, heat resistance, puncture resistance, shading properties
4. Coffee, tea, seasoning powder packaging bags
Material combination: PET / VMPET / PE PET / AL / PE OPP / VMPET / PE OPP / AL / PE
Packing method: ordinary manual / automatic vacuum
Performance requirements: fragrance retention, shading, air tightness, antistatic
5. Liquid stand-up bag
Material combination: PET / AL / LLDPE PET / AL / NY / LDPE
Packing method: automatic filling
Performance requirements: barrier property, pressure resistance, heat resistance, puncture resistance, pollution resistance
6. Packing bags of fertilizers, cultivated soil and organic fungus fertilizer
Material combination: PET / PE PA / PE PET / VMPET PET / AL / PE
Packing method: manual packaging or automatic packaging
Performance requirements: high heat seal strength, compression resistance, corrosion resistance