What are the production process and maintenance methods of the protective film?
Posted by Admin | 23 Nov
What are the production process and maintenance methods of the protective film? In the production process of the protective film, corona treatment is usually carried out, which will increase the surface area of the film and be charged with static electricity, and then perform subsequent gluing work, so that the film and glue can be well bonded and combined. The PE protective film will effectively act on the inner layer of the film. In production, its main material is EVA, which has a certain adsorption function in use, so as to achieve the overall adsorption function of the film. The two electrostatic films have different electrostatic formulations, and the product quality and price are also different. Inexpensive electrostatic films transfer electrostatic components to the surface of the product, leading to product deterioration and scrapping.
PE protective film is a common surface protective film in our daily life. Because of its good adhesion, good adhesion and no residual glue, it is widely used in mobile phones, notebook computers, TV screen surfaces, LCD screens and other fields. In the production process of PE protective film, the processing temperature of the barrel should be appropriately increased, and the method of condensation and cooling should be adopted. It can improve the transparency of the film. In fact, in order to produce a transparent PP film, a water quenching method must be used. If air cooling is used, the blown PP film produced is fuzzy and translucent due to poor cooling effect. Therefore, it is an effective method to improve transparency by appropriately increasing the processing temperature and adopting effective cooling means. Add a small amount of transparent polyacrylate resin with good compatibility to PE protective film and PP protective film.
The raw material of PE protective film is LLDPE, which is soft and has certain tensile properties. The general thickness is 0.05mm-0.15mm, and its viscosity can be changed between 5g-500g according to requirements. The PE material protective film project is divided into electrostatic film, mesh film and so on. Electrostatic film is a non-adhesive protective film, mainly used for surface protection such as electroplating.
Protective film is now a relatively common material on the market. It has its presence in all walks of life; no matter what type of protective film, it must be protected to ensure its performance and good quality. If it is not properly maintained, it will damage its surface and affect it. Its normal use. Of course, pay attention to its maintenance methods on the basis of use, and avoid contact with some strong alkaline solutions, otherwise it will easily damage the ingredients on the surface of the product.
The adhesive force between the protective film and the protective product is weak, and the water is washed off during transportation and use. The most likely reason is that the photosensitive glue used in the protective film product is not produced enough. Another possibility is that the user has a problem with the rear mold. The pressure used by the molding machine is not enough, or the surface of the profile is clean, without dust or paint, etc., which will affect the paste effect of the photosensitive glue! If you want to use the medicine appropriately for this reason, you can replace the photosensitive glue to increase the pressure of the coating film, or pay attention to the surface of the profile when coating the film to avoid floating.
You can use a clean cloth dipped in a little alcohol, and repeat the friction test on the remaining sensitive glue until the sensitive glue is wiped off. Pay attention not to use too much force during the friction test, otherwise the finish of the profile product may be affected. When dust is found on the surface of the protective film, do not wash it with water, otherwise it will affect its adhesion, as long as it is treated with dry paper towels. Generally speaking, oil is the biggest opponent of the protective film. Once the oil is released, the protective film will not only lose its material, but also cannot protect the goods. Therefore, oil pollution is absolutely prohibited.
The performance of the protective film is good after being used for a period of time in the middle, but at both ends of the wing, this phenomenon is the main reason. The protective profile on the protective film is deepened during the pasting process. Bottom, flushing is an unnecessary retraction phenomenon, so the protective film should pay attention to the impact of ambient temperature on the use of the product during the production process to avoid unnecessary surface tension during the pasting process.