Jelly easy to tear sealing aluminum film is a key material widely used for sealing cup food such as jelly, yogurt, pudding, etc. It is not a single-layer film, but a carefully designed multifunctional composite film that perfectly balances the three major needs of sealing and preservation, easy opening experience, and beautiful printing. 

Its core structure is usually divided into three layers, each layer carrying key functions: 

1. Outer layer (printing layer/substrate layer): Polyester (PET) or nylon (BOPA) film is usually used. It provides excellent mechanical strength and serves as a high-quality printing medium for colored patterns, brand logos, and product information, directly determining the attractiveness of the product's appearance. 

2. Middle layer (barrier layer/core layer): a very thin layer of food grade aluminum foil (usually only 6-7 microns thick). This is the core of the membrane, which can: 

Efficient Barrier: Almost completely isolates oxygen, water vapor, and light, effectively preventing jelly oxidation, dehydration, or flavor loss, ensuring its fresh taste and stable quality. 

Providing ease of tearing: Working together with the inner heat sealing material, it is the key structural foundation for achieving the "easy tearing" function. 

3. Inner layer (heat sealing layer): usually made of specially modified polypropylene (CPP) or polyethylene (PE) material. It comes into direct contact with jelly and has: 

Precise heat sealing: It can quickly and firmly heat seal with the edge of the jelly cup (usually PP cup) at a lower temperature, forming a reliable seal and preventing leakage. 

Controlled tearing: Through precise formula and process, its adhesion with the aluminum foil layer is controlled at the "just right" strength - ensuring a firm seal while allowing consumers to tear off the film smoothly and cleanly along the pre engraved "tear line" or the entire circumference of the cup with minimal force, leaving almost no residue and not tearing the cup body, resulting in a smooth experience. 

4. Summary of main features: 

Easy to tear: Designed for all groups including children, it can be easily opened without the need for tools. 

Reliable sealing: Excellent barrier performance provides a long shelf life and ensures safe transportation without leakage. 

Beautiful and hygienic: The surface can be beautifully printed, the aluminum layer provides light shielding protection, and the inner layer meets food safety standards. 

Efficient production: suitable for high-speed automatic filling and heat sealing production lines. 

Leadtra Packaging is a wholesale and customized manufacturer of aluminum foil sealing film, specializing in the research and development, production of various high barrier packaging materials and easy to tear sealing packaging materials. We can provide one-stop services from consultation, design, sampling, production, testing, after-sales service, etc. If you are interested in or have any questions about us, please feel free to call us for consultation.