How to distinguish between electrostatic film and plastic protective film bubble how to solve

How to distinguish electrostatic film and plastic protective film.

1 Is not with glue difference:.

First of all, we should understand what our products need to stick protective film, is the adhesive or non-adhesive, pp or pe protective film, if yes, yes and non-non-adhesive, belongs to electrostatic film, and pet film without adhesive belongs to protective film, the difference between electrostatic film and adhesive protective film is actually mainly depends on whether they have a strong adhesive difference. Electrostatic film is mainly based on electrostatic adsorption effect.

2 Differences in main uses:.

It is generally used in some bright surfaces, such as the common electrostatic film used in the screen protection layer, and the adhesive protective film is also called glue-coated paper, glue-coated paper is coated with a layer of strong adhesive on the surface, its viscosity is larger, suitable for some areas where the surface is not so smooth, but the classification of glue-coated paper can also be classified according to the strong adhesive viscosity.

Protective film products in the production process, sometimes there will be bubble problems, which is very troublesome, in order to solve this problem to think of a lot of ways, such as choosing the right ink and improve the amount of coating, enhance the glue to the film wettability, improve the local glue defects, improve the temperature and pressure of the composite roller, reduce the composite speed to increase the infiltration time and glue time and so on.

When making the protective film, you can preheat the glue and film and increase the temperature of the composite press roll. At the same time, you can clean the coating roll and strengthen the management of the coating amount and coating roll. For the coating roll, aluminum plating should be performed after the new roll is used to 5 million meters. Prevent the problem of poor appearance and low peeling strength caused by insufficient coating roller.

In order to adjust the viscosity of the protective film, it is necessary to replace the coating roller regularly, within the viscosity range of the process requirements, through the combination of the glue solid content and the coating roller to meet the requirements of the coating amount, and adjust the drying conditions, such as wind speed, temperature and so on.

In addition, it is necessary to increase the coating amount for manufacturing protective film and the temperature and pressure of the composite roller, improve the rubber hardness of the roller, increase the rubber hardness of the roller to 80-85 ° C, and adjust the "wrapping Angle" Angle of the film before the roller, and enter the composite roller as far as possible according to the tangential direction.

In addition, taking moisture-proof measures during the forming process of the protective film, such as keeping the environment dry, curing agent sealing packaging materials, etc., can also play a certain effect on improving the bubble problem, thus greatly improving the quality and use effect of the protective film.