New coating technology of PET optical film-technical knowledge
New coating technology of pet optical film Source: Protective film factory direct sale Time: 2019-06-20 Click: 2060 The thickness of the coating currently used varies widely, and some coatings are very thin, and the surface is required to be uniform and smooth. In order to improve production capacity, the coating speed must be high, so some research institutions began to study micro-gravure roll coating and slot coating: 1. Micro-gravure roll coating is easy to operate, wide coating range, and save substrate , The thickness of the substrate has a wide range of adaptability, the coating appearance is good, and the surface is smooth and shiny. 2. The slit coating is a coating method with an expected amount, and the coating is uniform, which can realize large-scale coating and ultra-thin coating. The micro-gravure coating method mainly coats high-end functional films. The micro-gravure coating method was used in the preparation process of the anti-reflective film. The slit coating method pointed out that the structure of the distribution cavity should make the pressure distribution reasonable, reduce the Slit adaptation, setting the auxiliary cavity as required, so that the residence time of the material in the coating nozzle is the same, and other key factors in the design and manufacture of the slit coating nozzle. Foshan Bowei Environmental Protection Material Co., Ltd. is an electronic material supplier with 20 years of experience. It can produce PET film with multiple functions, such as: sub-(matte) PET film, flame-retardant (fire-resistant) PET film, inkjet printing Film, anti-static PET film, anti-fog PET film, anti-UV PET film, non-shrinking PET film, PET release film, etc. Interested parties welcome to inquire!