What is Paper Coating?

Paper coating, in simple terms, refers to applying one or more layers of specific functional coatings on the surface of paper to improve its surface properties and appearance quality. This technology is widely used in the production process of various types of paper, such as packaging paper, printing paper, household paper, etc. The main purpose of coating is to improve the smoothness, glossiness, opacity, water resistance, oil resistance, wear resistance and other properties of paper.

What is Position of Coating Process for Paper Machine?

In the paper production process, the coating machine evenly applies the coating on the surface of the paper, and after drying, calendering and other processes, it forms coated paper with excellent performance. There are many types of coated paper, and different coatings and coating processes can be selected according to their different uses and performance requirements.

What's The Methods of Coating Process?

Coating Blade:Coating blades are often made of alloy tool steel with good strength and hardness. This type of blade has high strength, hardness, and small straightness error of the cutting edge. When scraping glue, the coating blade is fixed and does not rotate. Pneumatic and fine adjustment mechanisms are used to adjust and control the position of the scraper. The coating amount control and scraping accuracy are high, and the use is extremely convenient. The advantage of the coating blade is that the scraping glue is very uniform, suitable for precise scraping glue on the smooth roller.

Coating Rods: coating rods are commonly made of round rods with good strength and hardness, which are precision processed. The technical requirement is that the jumping error is very small, and they are mostly used for pre scraping glue coating in scraper type scraping glue devices on smooth rollers. When scraping glue, it is required that the round rod rotate, and the coating rod can directly scrape on the substrate. When the adhesive viscosity is high, it can also be directly scraped onto the substrate with a scraper as the precise scraping mechanism for the coating mechanism. It can also be used for disposable adhesive with thicker coating.