Printed packaging film roll may be single-layer or composite. From the market demand point of view, composite printed packaging film is more widely used, because it makes the advantages of the original materials complement each other, showing excellent comprehensive performance. Composite printed packaging film has 2-7 layers, the variety is very rich. The material of outer-layer requires good mechanical strength, heat resistance, printing performance and optical performance. The material of inner-layer requires good heat sealing, non-toxic, odorless, oil-resistant, water-resistant, moisture-proof and chemical-resistant. The barrier-layer is usually located on the side of the laminated structure near the product. Aluminum foil and evaporation coating are commonly used as barrier layer materials. The combination of different material layers makes the printed packaging film present different characteristics and adapt to the use of various industries.
Laminated Instructure Introduction for Different Bag/Material
Structure | Feature | Application |
BOPP/CPP or LDPE | Moisture proof, good heat seal, good air barrier and transparency | Dry food,expanded food,biscuit, cookies and bread packaging |
BOPP/VMPET or VMCPP | Good light barrier, anti-puncture, good stiffness | Dry food, expanded food, medicine, cosmetic, milk powder and tea packaging |
BOPP/PET/LDPE or CPP | Low temperature resistance and high temperature resistance | Food, meat, seafood outer packaging |
BOPP/VMPET/LDPE or CPP | Good anti-puncture and stiffness, can protect from light, good look | Tea, juice, beverage and drink packaging |
BOPP/AL/LDPE | Moisture proof, strong sealing strength | Coffee, glucose, egg powder and other powder packaging |
BOPP/KRAFT/CPP | Easy to tear, good friction, prevent against oxygen | Meat outer packaging |
PET/CPP or VMPET | Good rigidity, hardness, anti-oiliness | Dry food, corn, powder packaging |
PET/LDPE | Anti-oiliness, soft quality, great to preserve scent | Vacuum packaging |
PET/PET or VMPET/LDPE or CPP | Antistatic, anti-aging, anti- ultraviolet radiation | Vacuum packaging |
PET/AL/LDPE or CPP | Can frozen, strong sealing strength,100°C poach | Poach packaging for meat |
PET/PA/LDPE or CPP | Non-leakage, anti-puncture, oiliness, prevent against oxygen | Liquid, vacuum packaging |
PET/PA/RCPP | 121°C,30min high temperature cooking, oiliness, prevent from oxygen | Meat, rice, dish inner packaging |
PET/AL/PA/RCPP | 125°C,30min high emperature cooking, oiliness, prevent from oxygen | Meat, rice, dish inner packaging |
PA/RCPP or LDPE | 121°C,30min high temperature cooking,easy heat seal,can frozen | Mushroom, bean, meat inner packaging |
PA/AL/RCPP or LDPE | 128°C high temperature cooking, strong sealing strength, anti-puncture | Pack retortable food, fried food, rice, corn for cooking |
PA/AL/PA/ RCPP or LDPE | 128°C high temperature cooking, anti-aging | Aviation catering |
PVC | Easy to twist, good look | Candy and snack packaging |
