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What Do You Know about the Shrink Packaging Machine?

Feb. 08, 2021

Shrink packaging machine (shrink packaging machine) is the product wrapped in heat shrink film and then heated, so that the film shrinks after wrapping the product machine.

Low-temperature heat sealability is mainly determined by the performance of the heat seal layer resin, but also with the pressure is also related to the general extrusion lamination extrusion temperature is higher, corona treatment is too strong or film parked too long will reduce the low-temperature heat sealability of the material.The next shrink packaging machine supplier will explain the shrink packaging machine heat sealing issues.

Heat Tackiness

Thermal adhesion is used to describe the strength of the molten surface of the heat seal layer to resist external peeling when it is not sufficiently cooled and cured after heat sealing: such external forces often occur in automatic filling and packaging machines. Therefore, automatic packaging with composite film rolls, should choose heat sealing materials with good thermal adhesion.

Contamination-resistant heat sealability

Anti-pollution heat sealability, also known as the inclusions of the contents of the heat sealability, refers to the performance of the heat seal when the cover is adhered to the contents or other contaminants can still be heat sealed. Composite film according to different packaged materials, different packaging machinery and different packaging conditions (temperature, speed, etc.) to choose different heat sealing resin, can not uniformly use a heat sealing layer.

For packaging with poor heat resistance, low temperature heat sealing materials should be used. For heavy-duty packaging, high heat sealing strength and high mechanical strength, good impact performance of the heat sealing material should be used. For high-speed packaging machine, low-temperature heat sealing and heat sealing materials with high adhesive strength should be used. For powders, liquids and other polluting products, good anti-pollution heat sealing materials should be used.

Shrink Packaging Machine

Advantages of shrink packaging machine

1.The machine is applicable to industries like food, gift, hardware, daily necessities, pharmacy, printing, etc.

2.Equipped with PLC control system and safety protecting and alarm devices;

3.Constant sealing with no need of changing .Easy to operate and maintain;

4.The length of shrink film is automatically adjusted by the electric yes and control timer;

5.The added horizontal and vertical electric eyes provide options for switchover. It's suitable for sealing thin and small products;

6.Automatically perform the scraps discharge process. Leave no mess and keep your working space tidy and clean;


Hi-speed hot air circulating shrink tunnel adopts roller type conveyor, the rollers are covered by silicone gel pipe they roll automatically, and also the conveyor can use Teflon mesh belt or S.S. mesh belt instead of rollers. When shrink PE film, need not the rollers roll, easy to convert it by the handle at the end of the tunnel.

The temperature inside the tunnel is even, suitable for shrink PE.PVO.POF films;

The inner container forms hot air circulation inside tunnel, the volume of hot air can be controlled by the air doors according to the packing requirements for different products.

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