How to reduce the unwinding force of the protective film

The following measures can be taken to reduce the unwinding force of the protective film:

1. Optimize material selection: Choose a protective film material suitable for the application, especially considering reducing the viscosity and adhesion of the material in the design. Different materials have different characteristics and protective films with smaller unwinding forces can be selected according to specific needs.
2. Adjust the glue formula: For the pressure-sensitive glue type protective film, adjusting the formula can affect the viscosity of the glue, thereby reducing the unwinding force. Reasonable glue formulation can reduce the unwinding force while ensuring adhesion.
3. Control the amount of glue coating: Control the amount of glue coating on the protective film can affect its viscosity. Reducing the amount of glue coating can reduce the unwinding force, but at the same time ensure that the adhesive force of the glue can still meet the requirements of the product.
4. Optimize the film roll structure: For large-size protective film rolls, the film roll structure can be optimized to reduce the internal tension of the film roll, thereby reducing the unwinding force. The reasonable structure of the film can reduce the deformation and folding of the film and make the unwinding force more uniform.
5. Control the unwinding speed: In the production process, proper control of the unwinding speed can also affect the unwinding force. Too fast unwinding speed may lead to an increase in unwinding force, while properly reducing the unwinding speed can reduce the unwinding force.
6. Use auxiliary tools: For some protective films with large unwinding force, you can consider using auxiliary tools, such as anti-friction devices or unwinding racks, to help reduce the unwinding force.

To sum up, reducing the unwinding force of the protective film needs to be comprehensively considered and optimized from many aspects such as material, glue formula, coating amount, and film roll structure. Enterprises can adjust according to their own product needs and production processes to achieve the best unwinding force effect.

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