Product Name: Heat seal liner
Common thickness: AL36+Heat seal30
Color Pingting quantity: 10 Colors.
Heat Seal Liners:
Pre-cut, sometimes embossed, designed to be placed perfectly over pre-formed yogurt cups and run through a heat-sealing machine.
Core Functional Applications:
Barrier Protection: The high-barrier aluminum foil layer completely blocks oxygen, light, and moisture. This prevents fat oxidation, avoids whey separation, and extends shelf life.
Tamper Evidence: Provides visual proof of first opening. Consumers can easily see if the lid has been compromised, ensuring food safety.
Leak-Proof Transit: During e-commerce shipping or long-distance cold chain transportation, a strong heat seal withstands high pressure and vibrations to prevent liquid spills.
Application Fields:
Cup-Packaged Yogurt: The most common application. It primarily uses die-cut aluminum foil lids. These are directly heat-pressed onto PP or PS plastic cups.
Probiotic Dairy Drinks: Commonly uses roll-fed continuous heat sealing. The machinery automatically cuts the film from a roll and heat-seals it onto small plastic bottle necks.
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