What is the development history and coating process ...

What is the development history and coating process of tape coating machines?

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What is the development history and coating process of tape coating machines? Let me talk to you today:

my country introduced tape machinery in the s. At that time, the development of my country's mechanical manufacturing industry was relatively backward. The initial production speed of tape coating machines reached dozens of meters per minute. After more than 30 years of development, my country's tape machinery industry also eliminated a group of batch The relatively backward device is approved to gradually introduce new devices to help the healthy development of my country's tape -based mother roll industry. As of now, the production speed of the coating machine on the market is still large. With the improvement of my country's productive forces, a group of relatively weak devices have been eliminated.

The tape coating machine has a large size. The coating machine on the market not only has different width, but also has a difference in length due to the different design speed. At present, the width of the domestic coating machine is 500mm, mm, mm, and mm. Among them, mm is common, accounting for about 80%of the nation's usage, 500mm and mm. The coating machine has gradually flourished in recent years. The length of the coating machine is 30-40 meters (design for drying glue).

There are two coating processes of tape coating machines, which are coating and scraper coating. The scraper coating is a traditional coating process. Its advantage is that it can obtain higher smoothness and gloss; the disadvantage is that the requirements for the original membrane are higher and the speed of the coating is relatively slow. As a coating process that has just emerged in recent years, its advantages are: low requirements for the original membrane, faster glue, and coating that can adapt to high -solid content; the disadvantage is that the coating volume can be adjusted to adjust the amount of coating amount. The range is small, the measurement stick is easy to damage, and the quality of glue is high. Each process has the flash point of each process. The two processes can only coexist and cannot be eliminated.

Occupation speed: different craftsmanship, different speeds

The production process of the coating machine is divided into line rod coating process and scraper coating process. Generally speaking, the coating of the thread machine is faster than the production speed of the scraper coating. According to data, the current production speed of the line rods is 250-260 meters per minute, 280-290 meters/minute, and part can be more than 300 meters per minute; the production speed of the scraper coating is 220-230 meters/minute of 220-230 meters/minute. , 180-190 meters/minute, 150 meters/minute, and even some old lines are about 100 meters per minute. Therefore, the production capacity of each coating machine is very different.

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Release Date&#;-01-09 Content Comes From&#;http://www.etong-sh.com/en/

Comparison of the advantages and disadvantages of Protective film coater filtration products

1. Filter bag/filter cloth of Protective film coater

The advantage is that it is cheap, but the disadvantage is that it is not good performance. Due to the process characteristics of the material itself, it is composed of a single-layer filter cloth weaving, when encountering viscosity and pressure, the pores are easily deformed and squeezed, and it is impossible to intercept the fine particles and soft rubber particles in the glue; Moreover, the voids are unstable, resulting in unstable batch filtration.

2. Ordinary filter element of Protective film coater

The advantage is that this type of filter element is less expensive and will be improved over the filter bag or screen. However, there are many disadvantages of the protective film coater: first, the filtration results are general, which may not meet the harsh requirements of high-end protective films; Second, the gel in the glue cannot be removed; Third, the Protective film coater is simple to make, and does not do stability checks; Fourth, there are fiber shedding and other phenomena, polluting the glue. 

Yitong Industry and Trade (Shanghai) Co., Ltd. provides new products, new craft solutions company, we not only provide equipment, but also the new European technology, process through the carrier of equipment, to provide Chinese customers. The main equipment is precision coating, mainly including lithium battery coating, optical film coating, brand tape coating, etc., covering the industries of battery, printing, electronics and precision chemical industry. Precision coating machines include: solvent-free coating machine (hot melt adhesive coating machine), Solvent coater Protective film coater, water-based coating machine, oil-based coating machine, etc. Fully automatic control mode, representing the high level of Europe. Our products have: European quality, joint venture price, Chinese service.

If you are looking for more details, kindly visit Tape Coating Machine.