PET/AL/PE Foil Bag

PET/AL/PE foil bag is the most classic and widely used three-layer composite aluminum foil packaging bag in the flexible packaging industry.It is formed by laminating PET film,pure aluminum foil and PE inner film through high-standard dry lamination process.This mature three-layer structure perfectly integrates printing performance,ultra-high barrier property and safe heat-sealing performance,making it a universal packaging solution favored by manufacturers across various industries worldwide.

Each layer of PET/AL/PE structure has clear functional division and complementary advantages.The outer PET layer features high surface hardness,excellent wear resistance,good transparency resistance and superb printing adaptability.It can present clear,bright and durable patterns,brand logos,product descriptions and specification information without easy fading or scratching during handling and transportation.The middle AL pure aluminum foil layer is the core functional layer,which provides full light shading,complete oxygen isolation,strong moisture-proof and odor-proof effects.It can block ultraviolet rays,external air,water vapor and peculiar smell thoroughly,stopping contents from oxidation,mildew,damp deterioration and flavor loss fundamentally.The inner PE layer is food-grade soft plastic material,owning excellent thermal sealing performance,low-temperature resistance and non-toxic safety.It can be tightly sealed by common heat sealing machines,ensuring firm edge sealing,no air leakage and no cracking,and can directly contact most daily goods and food safely.

Benefiting from the optimized three-layer composite design,PET/AL/PE foil bags possess outstanding overall performance.Compared with single-layer plastic bags and ordinary aluminized bags,their barrier capacity is greatly upgraded,which can effectively prolong the shelf life of packaged products.They have stable physical properties,good toughness,certain puncture resistance and folding resistance,suitable for long-distance logistics transportation,stacking storage and daily sales display.Meanwhile,this material combination has moderate cost and stable production quality,achieving perfect balance between high performance and economic cost.

In practical application scenarios,PET/AL/PE foil bags cover numerous fields.In food industry,they are widely used for packaging nuts,dried fruits,tea,coffee,seafood snacks,seasoned food and vacuum preserved food,keeping original taste and fresh state for a long time.In daily chemical and cosmetic industries,they are ideal for packing facial mask powder,essence powder,bath salts and various powdery skin care products to avoid moisture and ingredient deterioration.In electronic and industrial fields,they are commonly used to pack small precision accessories,hardware parts,electronic components and chemical powder materials,playing good moisture-proof and anti-oxidation protection effects.

These foil bags support diversified customized styles,including three-side sealed bags,flat bags,vacuum bags,pocket bags and other common shapes,meeting different packaging and packing requirements.They adapt to conventional heat sealing equipment,easy for factory mass production and automatic packaging.All raw materials comply with international food safety and environmental protection standards,free from harmful substances,safe and reliable for long-term use.

Nowadays,PET/AL/PE three-layer aluminum foil bags have become mainstream standard packaging materials in global packaging market.With reliable layered structure,stable comprehensive performance,wide applicability and cost-effective advantage,they keep occupying a core position in flexible packaging industry,and are still the first choice for most merchants when selecting high barrier sealed packaging.