Product Description
The principle of skin packaging is to place the product on a breathable bottom plate (cardboard or plastic sheet), cover it with a plastic film that is softened by heating, and vacuumize the substrate to make the film tightly wrap the product and seal with the bottom plate.
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Breathable Film: High air permeability, easy to form on the body. Best suited for frozen food applications.
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Oxygen Barrier Film: Provides high barrier resistance to oxygen, effectively prolonging the shelf life of food. Excellent formability helps maintain the complete shape of soft food items.
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Multi-layer Co-extruded Electronic Cross-linked Film: Features premium barrier properties, ideal for fresh and refrigerated food. Mainly utilized in automatic continuous body packaging machines.
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Bottom Plate Design Options:
1. Flat bottom tray, constructed from plastic sheet or paper-plastic composite materials.
2. Pre-shaped plastic tray. Although the packaging cost is higher, it delivers a high-end appearance and strong functionality suitable for modern terminal retail channels.
Frequently Asked Questions
How does a vacuum skin packaging machine work?
The machine places the product on a breathable bottom card or plastic plate, softens a plastic film with heat, and then uses vacuum suction to tightly mold the film around the contours of the product, sealing it firmly to the base.
What types of skin packaging films are available?
There are three main types: Breathable Film (ideal for frozen foods), Oxygen Barrier Film (prolongs shelf life for soft foods), and Multi-layer Co-extruded Electronic Cross-linked Film (suitable for fresh and refrigerated products in continuous packaging systems).
How long can skin packaging preserve fresh meat?
Skin packaging creates a highly sealed barrier that isolates air and bacteria more efficiently than standard vacuum packs, maintaining meat freshness for up to 21 days when stored at a temperature of 0-4°C.
What are the advantages of the Siemens microcomputer control system?
It features a simple user interface for easy operations, guarantees highly accurate alignment with minimal system errors, and provides stable, maintenance-free performance.
Why is 304 stainless steel used in this packaging machine?
Food grade 304 stainless steel offers exceptional resistance to high and low temperatures, corrosion, and wear, ensuring hygienic, clean, and durable food-safe operations.
What is the difference between DZ350 and DZ500 models?
The DZ350 model operates at 1KW with a speed of 120-200 boxes/hour and a 10m³/h vacuum pump. The larger DZ500 operates at 2.5KW, features a 20m³/h pump, and can reach production speeds of 120-480 boxes/hour.