The production process of glass protective film thirty years ago may not be as advanced and automated as it is now.

The production process of glass protective film thirty years ago may not be as advanced and automated as it is now.

1. Material preparation: Firstly, it is necessary to choose appropriate plastic film materials, such as polyester film, which is the main raw material for making glass protective film. Then, the raw material of the plastic film is processed by cutting, cleaning, and drying.
2. Coating adhesive: A special adhesive is applied to the surface of the pretreated plastic film. The function of this adhesive is to enable the protective film to adhere tightly to the glass surface.
3. Baking: The plastic film coated with adhesive is baked to solidify the adhesive.
4. Printing: Various texts and patterns are printed on the protective film to increase its aesthetic and functional value.
5. Cutting and dividing: The plastic film is cut into small pieces or strips according to the desired size and shape.
6. Packaging: The cut glass protective film is packaged to protect its quality and appearance.
7. Quality inspection: Finally, a strict quality inspection is conducted to ensure that the produced protective film meets the standard.

Compared with now, the production process thirty years ago may rely more on manual operations, and the efficiency and precision may also be relatively low.