The core material is rolled into sheet form with uniform core specifications (commonly 3-inch core). The roll is tight and not loose, and the outer layer is coated to prevent dirt and scratches, making it convenient for storage and machine use.
The film is precisely sized to fit various cup openings (common diameters 60mm-95mm), and can be customized to round, square, and other irregular shapes as needed. The film is flat, wrinkle-free, bubble-free, and scratch-free, with neatly cut edges to ensure a tight seal without shifting when sealing.
It has a uniform thickness (commonly 25μm-80μm), feels light and thin but is sturdy, does not stretch or deform after unfolding, can fit tightly to the edge of the cup, and has no curling or wrinkles after sealing.
LANGUAGE
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