Multi-layer Composite Structure Drip Coffee Bag Filter Film

 

Drip coffee roll film is a specialized packaging material designed specifically for drip coffee bags, balancing functionality, convenience, and aesthetics. It features a multi-layer composite structure, typically composed of: an outer layer (printing layer) of PET or nylon, a middle barrier layer (such as aluminum foil or EVOH), and an inner heat-sealing layer (PE or PP). This structure effectively blocks oxygen, moisture, and light while ensuring sealing strength. The film thickness usually ranges from 70 to 120μm, offering a good balance between flexibility and barrier performance.

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