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Environmental control of PET protective film production-film supplier

by:POLYVA     2021-12-11
There are two key points in the quality control of PET protective film products. Scratches and dirt must be avoided. To meet these two requirements, we must first have a good production environment. The die-cutting plant is equipped with an independent dust-free purification workshop for protective film production. Dust-free purification workshops are also called clean workshops, clean rooms, and clean rooms, which refer to the removal of particulates, harmful air, bacteria and other pollutants in the air within a certain space, and the indoor temperature, cleanliness, Pressure, airflow velocity and airflow distribution, noise, vibration, lighting, and static electricity are controlled within a certain range of requirements, and are given to specially designed rooms. Regardless of how the external air conditions change, it is required that the cleanliness, temperature, humidity, and pressure parameters that were originally set can be maintained in the dust-free purification workshop. According to the requirements of the production products, the cleanliness of the dust-free purification workshop has different levels of 100, 1,000, 10,000, 100,000, and 300,000. In the dust-free purification workshop, under dynamic conditions, the biggest source of bacteria and dust is the operator. Therefore, before entering the dust-free purification workshop, the operator must wear clean clothes, and blow clean air in the air shower room for 15 seconds to remove the dust particles attached to the surface of the clothes. PET film printing process control. Most plastic films (such as polyolefin films) are non-polar polymers with low surface tension, generally 29-30mN/m. Theoretically speaking, if the surface tension of an object is lower than 33mN/m m. The currently known inks and adhesives cannot be attached firmly, so the surface should be corona treated. The material of the protective film is mostly polyolefin, and corona treatment is required before printing. The corona power is usually 4.0W and the speed is 30m/min. After corona, it is required to print on the machine within 5 minutes, and after 10 minutes, it needs to be corona again before going on the machine. During the printing process of PET protective film, since the PET protective film material will contact the embossing roller, friction will cause the surface of the material to be scratched. Therefore, it is necessary to coat all the embossing rollers in contact with the protective film with a layer of soft cleaning. As we all know, in the composition of electronic products, the protective film is an indispensable part of it, whether it is a mobile phone, a camera or a tablet, before leaving the factory. A protective film should be attached to protect the product screen. The transparency, flatness, and cleanliness of the protective film affect consumers’ impression of electronic products. A good quality protective film will also enhance the external image of the electronic product. Therefore, the die-cutting factory has all the protective film products produced. Strict process control. It is a company specializing in the production of PET film with multiple functions, such as: transparent PET film, milky white PET film, release PET film, supply of PET motor film, etc. With a wide variety of products, affordable prices, and environmental protection, we provide customers with excellent quality and service based on the service tenet of excellence in production, honesty and trustworthiness in distribution, and warm and thoughtful service. Interested parties welcome to inquire! Contact: Wen Feng 13728425799
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