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The squeegee cavity is composed of a cavity and a coating squeegee. The doctor blade cavity is in close contact with the coating gravure roll in the working state, and the coating liquid is transferred to the coating gravure roll. The coating blade is used to remove the excess coating liquid on the coating roll and distribute the coating liquid on the coating roll. Uniform, replaceable coating blades are usually made of stainless steel. The coating roller is a metal roller with small grooves on the surface, and each groove is densely arranged to form a honeycomb structure. The coating liquid is brought into the groove of the coating roller through the doctor blade cavity, and then transferred to the film by the coating roller. During the coating process, the running direction of the coating roller needs to be set opposite to the forward direction of the film, so that the purpose of transferring the coating liquid has been achieved. A coating system with double-sided coating requires two upper and lower coating rollers. The coating rubber roller can be lifted when the coating film is not produced, so that the coating roller does not touch the cast sheet, and the pressure roller is pressed down to make the cast sheet contact the coating roll during production to achieve coating. If double-sided coated products are produced, the upper coating roller will transfer the coating liquid to the surface of the rubber roller, and then the rubber roller will transfer the coating liquid down to the cast sheet. 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!