Multi-layer Co-extrusion Blown Film Technology

In the future, the packaging industry will surely upgrade towards the trend of thinner products, multiple functions, energy saving and consumption reduction. Multi-layer co-extrusion blown film  machine technology increases the diversity of raw materials through multi-layer equipment, so that each layer has different properties, reduces production costs, and achieves energy saving and consumption reduction. Sincerity helps objectively avoid product homogeneity, broaden application boundaries, and meet the market's customized needs for high-end products. Explore the new future of packaging with you.

General steps for multi-layer co-extrusion blown film:

1. Different types of plastic pellets are heated and melted through independent extruders.

2. The outlet of each extruder forms different layers of plastic melt, which together form a multi-layer structure.

3. Different layers of plastic melts need to have similar rheological properties before being combined to ensure that they can be evenly combined together.

4. The melt of the multi-layer structure passes through the blow molding machine, where the melt is blown into a film by air flow.

5. After film blowing, the film is quickly cooled through cooling rollers or other cooling devices to solidify the film structure.

Advantages of multi-layer co-extrusion blown film technology:

1. Performance superiority:

Composite membranes with superior performance can be obtained by combining the advantages of different materials.

2. Cost-effectiveness:

By manufacturing multi-layer structures on the same production line, production efficiency can be improved and costs reduced.

3. Wide application:

Suitable for food packaging, agricultural film, industrial packaging, express packaging and other fields to meet the requirements of different industries.