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What is the Working Principle of the Film Coating Machine

2025.04.01

Author：film coating machine

The working principle of the film coating machine mainly involves the process of uniformly coating a liquid or semi-fluid material such as a specific glue, coating or ink on a film substrate. Its detailed working principle is as follows:

1. Feeding system operation:

The coater first transports the material to be coated (such as glue, coating or ink) from a hopper, tank or container to the coating head through the feeding system.

This is usually achieved through pumps, pipes and control systems to ensure that the material can be stably and continuously supplied to the coating head.

2. Coating head coating:

The coating head is the core component of the film coating machine, which is responsible for uniformly coating the material on the film substrate.

The types of coating heads may include roller type, scraper type, slit type, etc., each type has its specific coating method and applicable scenarios.

During the coating process, the coating head maintains a certain contact pressure or gap with the film substrate to ensure the uniformity and thickness control of the coating.

3. Drying and curing:

The coated film substrate enters the drying system, which is to remove the solvent or moisture in the coating, so that the coating can be cured and achieve the desired physical and chemical properties.

The drying system may use hot air, infrared, ultraviolet light and other methods for heating and drying. The specific choice depends on the nature of the coating and the drying requirements.

4. Winding and finished products:

The dried film substrate is rolled up by the winding device to form the finished coated film.

During the winding process, the tension, speed and alignment need to be controlled to ensure the winding quality and appearance of the finished product.

In summary, the working principle of the film coating machine is a complex process involving multiple steps such as feeding, coating, drying and winding. By precisely controlling the parameters and conditions of each step, high-quality and efficient film coating operations can be achieved.

Qingdao Chenan Machinery Co., Ltd. has the advantage of developing and producing rubber winding equipment, with higher technology than various equipment assembly manufacturers in the industry. For more information about film coating machine, please contact us.

Company: Qingdao Chenan Machinery Co., Ltd.

Address: Yanjialing Industrial Park, East Chengma Road, Tongji New Economic Zone, Jimo District, Qingdao City, Shandong Province

Email: qdcajx@gmail.com