Metalized Foil Bag

Metalized foil bag,also known as aluminized film bag,is a cost-effective flexible packaging made by vacuum metalizing process.Instead of using real pure aluminum foil,it coats a thin layer of aluminum metal onto plastic film surface,then compounds with other functional films to form composite packaging bags.It is widely favored in light barrier packaging fields for its metallic luster,nice appearance,light weight and affordable price,occupying a large share in daily commodity and ordinary food packaging markets.

The core production feature of metalized foil bags lies in vacuum aluminizing technology.Under high vacuum environment,aluminum wire is heated and vaporized,evenly attached to the surface of base film such as PET or BOPP to form a dense metallic coating.This special craft endows the bag with silvery metallic texture and good light-shielding effect,presenting high-grade visual effect similar to real aluminum foil bags.After further compounding with PE or CPP inner layer,it achieves complete packaging structure with printing,shaping and heat-sealing functions integrated.

In terms of performance characteristics,metalized foil bags have obvious advantages and clear functional positioning.First of all,it has decent light blocking capacity,which can block most visible light and ultraviolet rays,effectively slow down product discoloration and photooxidation deterioration.It also has certain moisture-proof and oxygen-isolating ability,meeting the short and medium-term fresh-keeping storage needs of common goods.Secondly,this packaging material is lighter and softer than pure aluminum foil bags,with good flexibility and fold resistance,not easy to crack during bending and carrying,and brings better hand feeling.Besides,its production cost is much lower than laminated pure aluminum foil bags,with stable supply and fast delivery speed,highly suitable for mass low and medium-end packaging demands.

Nevertheless,it is necessary to distinguish it from real aluminum foil bags clearly.The metalized aluminum layer is thin and easy to crack after repeated folding or strong stretching,which will greatly reduce the barrier effect.Its oxygen and moisture resistance are far weaker than genuine AL aluminum foil bags,so it cannot be used for long-term preservation,vacuum packaging and high-temperature cooking scenarios.Meanwhile,the metalized layer has poor corrosion resistance,not suitable for packaging high oil content,strong acid and alkali products.

Metalized foil bags cover a wide range of applicable scenarios.They are commonly used for packing snacks,candies,biscuits,instant food,daily necessities,stationery,cosmetic sachets,clothing accessories and promotional gifts.The bright metallic surface supports exquisite color printing,which can well highlight brand style and improve product grade on supermarket shelves.Various styles like three-side seal,self-standing bag,zipper bag and middle-seal bag are all available for customization.

All qualified metalized packaging materials conform to regular safety standards,non-toxic and tasteless,safe for ordinary food contact.With balanced appearance effect and economic cost,metalized foil bags have become the preferred alternative packaging for merchants who pursue beautiful appearance and control packaging budget.In the consumer goods circulation industry,it remains stable market demand and irreplaceable practical value,and is always a mainstream choice for general-purpose light barrier packaging.