The Following Is The Production Process Of Winding Film

Wrap film is a common plastic film product, usually used in packaging, protection and decoration. The following is an overview of the general winding film production process:
1. Raw material preparation: Select appropriate plastic materials as raw materials, such as polyethylene (PE), polypropylene (PP), etc. Raw materials are usually provided in the form of pellets or granular materials.
2. Plastic melting: the raw material is melted into a melt by heating and extrusion. This is usually done by adding pellets or granular plastic raw material to an extruder, where it melts through an extrusion and heating process.
3. Winding extrusion: The molten plastic melt is extruded by the winding extruder into a film with the required size and shape by the die head.
4. Calender processing: The extruded film is calender processing to eliminate surface defects and improve finish. This can be done by a pressing or calender device.
5. Cooling: After extrusion and calendering, the film needs to be cooled quickly to maintain its shape and characteristics. This can be done by air cooling or water cooling.
6. Winding and cutting: winding or cutting the cooled film to get the required volume
Packaged or flake products.
7. Inspection and packaging: Quality inspection of the film after winding or cutting, including size,
Finish, transparency, etc. Products that meet the quality requirements will be packaged and ready for shipment.
It should be noted that the specific winding film production process may be dependent on the production equipment and products
It varies slightly depending on the solution. For example, some production lines may involve high speed extrusion and special
Post-processing processes, such as printing, stretching, etc. In addition, the production process also needs to follow the relevant
Quality control and environmental protection standards.