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Cling film, a thin plastic wrap typically made from polyethylene (PE) or polyvinyl chloride (PVC), is widely used in food packaging to preserve freshness and prevent contamination. Its adhesive properties allow it to tightly seal containers or directly wrap food items, creating a protective barrier against moisture loss, airborne bacteria, and odor transfer.
Common applications include:
Household use: Covering bowls, wrapping fruits, vegetables, and leftovers.
Retail packaging: Pre-packaged meats, cheeses, and ready-to-eat meals in supermarkets.
Industrial use: Bulk food storage and transportation.
Modern innovations include biodegradable cling films made from plant-based materials (PLA) or PVC with degradable additives, aligning with sustainability trends.
Shrink film, usually composed of polyethylene (PE), polyolefin (PO), or PVC, shrinks tightly around products when heat is applied, providing secure and tamper-evident packaging. In food applications, it ensures product integrity, hygiene, and visual appeal.
Key uses include:
Beverage multipacks: Bundling bottles or cans.
Fresh produce: Packaging vegetables, meats, or baked goods to extend shelf life.
Labeling: Creating tight, glossy sleeves for branding and product information.
Post-consumer recycled (PCR) shrink films are gaining traction, reducing reliance on virgin plastics while maintaining performance standards like puncture resistance and clarity.
Barrier films are engineered with multi-layer structures (e.g., EVOH, PA, or metallized layers) to block oxygen, moisture, light, and aromas, significantly extending food shelf life. They are critical for sensitive products prone to spoilage or oxidation.
Applications include:
Vacuum packaging: Meats, cheeses,poultry and cured foods.
Snack packaging: Chips, nuts, and coffee to maintain crispness and flavor.
Frozen foods: Preventing freezer burn and moisture ingress.
Vacuum skin packaging films（VSP Film） for food are gaining popularity due to their ability to preserve freshness, effectively block oxygen, prevent cold damage, enhance visual presentation, and ultimately attract more consumers, making them an ideal choice for food packaging.
Together, these films address diverse food preservation needs:
Cling film ensures short-term freshness and convenience.
Shrink film enhances product stability and presentation.
Barrier film provides long-term protection for perishable goods.
