What are the precautions for protective film coaters? （4）

In the protective film coater, it is controlled by the metering vacancy between two coating rollers and metering rollers with the same direction in the dispatch of the forward roller coating, and the composition of the coating roller of the protective film coater requires the thickness of the coating. The coating method is an extraordinarily different method of the rotary roller, that is, a metering roller does not change that is, the speed is zero, and the cross-section of the metering roller is made into a comma shape, also called a comma scraper. 

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