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About coating machine :

 

Development of Coating Technology of Coating Machine

 

Judging from the development of coating technology for coating machines in recent years, the future of coating technology will have three important characteristics:

 

1. It is worth mentioning that blade coating is still the most important coating method for a long period of time, and it is developing in the direction of high speed and high solid content;

 

2. The large-scale use of the metering and sizing press coating method has developed rapidly;

 

3. The new coating methods (spray coating and curtain coating) are widely concerned and will have bright development prospects.

 

However, it does not mean that the development mentioned above will be smooth, and there may be many technical difficulties and challenges. Squeegee coating with high solid content will cause operational problems such as scraper marks, high pressure on the squeegee, coating precipitation on the squeegee (commonly known as turning over), and rapid squeegee wear; The many difficulties brought about by the coating content and high coat weight. Including fog splashing at the exit of the coating roll nip, orange peel paper disease on the coating surface, etc.; the new coating method should also solve new problems that have not been encountered in conventional coating.

 

Advances in Coating Technology for Coating Machines

 

The development of the coating technology of the coater also requires the development of pigments, adhesives and additives to match. At this time, the coating additives show their unique and important value. With the increase of solid content, the viscoelastic properties of coatings are becoming more and more important. The interaction between the various components in the coating leads to the structuring of the wet coating, which exhibits distinct viscoelastic characteristics. It would be extremely beneficial if the coating structure could be effectively broken down under shear and recovered quickly after metering. In this way, not only good runnability is exhibited, but also the migration of coating adhesives is low, and the coating coverage is good. However, at very high solids content, the viscoelastic structure cannot be eliminated to the desired level. As a result, the problems that can exist with knife coating and metered size press coating arise. In spray coating and curtain coating, new coating additives are required to obtain good runnability. For example, the addition of wetting agents to coatings is required to spread spray-coated coating drops and to stabilize curtain-coated coating curtains. More importantly, spray coating requires low coating viscosity, and curtain coating requires proper coating extension viscosity and other properties may also require suitable additives to be matched. In addition, coating auxiliaries also show a development trend of multifunctionality. Rheology and water retention modifiers have some functions of lubricants, and some companies even claim to function as water repellents; new lubricants show many features of rheology modifiers.

 

Where to buy coating machine ?

 

JIALITE is one of the top Water Base Oil Coating Machine Manufacturers, Factory and Suppliers that focuses on Automatic pre-coating laminating machine. We have our own production workshop and design team. If you cooperate with us, we can provide you with first-hand prices.

 

Welcome to choose JIALITE - one of the top Water Base Oil Coating Machine Manufacturers, Factory and Suppliers that focuses on Automatic pre-coating laminating machine.

 

For more product information about YouTube and Automatic coating machine, you can click on the relevant link below.

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Due to the lack of in-depth understanding, most friends do not know which part of Automatic coating machine manufacturers to choose to obtain satisfactory results. In fact, as long as we have the patience to explore more things, we will soon know that manufacturers that have been established for many years, while focusing on the industry, have cooperated with different customers, and they will definitely have strong strength.

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