1. Stable performance: oil-resistant, moisture-resistant, low-temperature freezing resistant, quality-preserving, fresh-keeping, and odor-preserving. It can be used for vacuum packaging, aseptic packaging, and inflatable packaging.

2. High isolation: The high isolation function of different plastic materials is used to co-extrude the film to achieve high isolation against oxygen, water, carbon dioxide, odors, etc.

3. High strength: Co-extruded film has stretching characteristics during processing. After the plastic is stretched, the strength can be increased accordingly. Plastic materials such as nylon and polyethylene can also be added in the middle to make it have a composite strength that exceeds that of ordinary plastic packaging. .

4. Low cost: Compared with glass packaging, vacuum bags and other plastic packaging, co-extruded films have a greater cost advantage in order to achieve the same isolation effect.

5. No pollution: The vacuum bag does not add adhesives, has no residual solvent pollution problems, and is green and environmentally friendly.

6. Small volume ratio: Co-extruded film can be packaged in vacuum shrinkage, with a volume-to-volume ratio of nearly 100%, which is unmatched by glass, iron cans, and paper packaging.