OptiCoat Jet coating

Uniform and skipfree coating

OptiCoat Jet coating provides very uniform and skipfree coating quality. It gives the best possible surface smoothness compared to any other coating method. OptiCoat Jet coating station applies a surplus coating layer to paperboard surface with jet nozzles. The excess coating is scraped away by metering blade and returned on a return plate to the color collection pan. The desired coatweight is achieved by adjusting the angle or pressure of the blade. The impingement pressure is maximized with closed nozzle geometry.

Uniform coating quality

Fast start-up and web break recovery

Easy maintenance & operation

Excellent runnability

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Uniform coating quality

OptiCoat Jet produces high quality coating on paper and board in both cross and machine direction. High quality backing roll is one of the reasons for reduced MD coatweight variation. Skipfree coating is a result of a very effective de-aeration in color circulation. The application method and cross direction control capabilities are important for uniform application and excellent CD profiles.

Fast start-up and web break recovery

All Valmet coating stations are fully pretested in workshop. The instrumentation and controls are integrated in the machine and all the controls located by the station frame. The interface and automation systems are user-friendly. After web breaks, coating can be re-started fast. Tailthreading is fast and reliable. A wide operating window enables good surface quality almost immediately after the coating is started.

Easy to adjust, operate and maintain

Because of a wide operating window, coating quality is easily maintained high when speeding up the machine. The wide window and operator friendly automation facilitate finding the correct parameters for each paper or board grade. Clean coating process and easy wash-up speed up the maintaining operations.

Excellent runnability

Jet application is contactless resulting less breaks. Runnability is also improved because of a smaller doctor blade load compared to other application methods. Jet application also has excellent efficiency even at very high speeds.

 

Customer success stories

Even better, more stable profiles with OptiCoat Jet at Sappi Alfeld

Even better, more stable profiles with OptiCoat Jet at Sappi Alfeld

Sappi Alfeld in Germany is among the first to use Valmet’s latest coating station member in the new OptiCoat family. With the improved OptiCoat Jet blade coating head, Alfeld has been able to further improve coating profiles. “Our customers are really happy with our products,” says Mill Director Stefan Karrer.

SAICA El Burgo: Completely new type of coated white top liner grades

SAICA El Burgo: Completely new type of coated white top liner grades

SAICA was aiming for improved quality, reduced costs, and responsible fiber use, but it found itself with innovative coated white top liner grades with better properties than they bargained for.

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The world is changing fast; the consumption of papers is decreasing and boards increasing. Update your paper machine with Valmet to produce more profitable products.

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Learn more about the services and automation solutions for coating

Coater roll covers

Coater roll covers

For highest quality coated board or paper, with high smoothness and gloss, in blade coating, Valmet offers a full range of reliable rubber roll covers as well as a high performing polyurethane cover. These roll covers have good wear resistance and strength properties ensuring long grinding intervals and long lifetime.

Roll maintenance

Roll maintenance

Valmet’s modular maintenance service solutions consists of roll maintenance, roll reconditioning, and roll upgrade services. These solutions help board and papermakers achieve maximum performance with transparent and consistently high-quality maintenance services.

Coater blades

Coater blades

Coater blades play an important role in the paper or board making process. They hugely affect efficiency, both materials and time, and have a major impact on final product quality. In blade coating, paper quality variations and rapid wearing of coater blades inevitably result in production losses and higher blade costs. The Valmet Coater Blade family consists of four carbide blades which leave a uniform layer of coating color on paper or board surface, thus creating an excellent finish for d...

Doctoring products

Doctoring products

Doctoring affects machine runnability, paper and board quality, production costs, and production efficiency. Runnability can be improved by optimizing doctoring parameters and blade materials. Cleaner rolls result in better end-product quality. The blades can be selected to meet customers shutdown schedule which will lead to fewer blade changes resulting in lower blade costs. The reduction of unplanned shutdowns and costly downtime periods can be avoided by reliable and trouble-free doctoring....

Tail threading

Tail threading

A reliable tail threading process decreases tail threading times, minimizes waste and improves safety. This means an investment in your process is an investment that pays for itself. Whether you need improvements in paper or board machines, we have an advanced tail threading solution that clearly enhances your production efficiency. Our comprehensive range of tail threading services, from preventive maintenance to tail threading study secures optimal operation of your equipment and reduces threa...

Automation for Board and Paper

Automation for Board and Paper

Board and paper success stories

Explore our customer success stories and learn more about our full-scope offering for the board and paper industries.

Sleeve roll technology

Sleeve roll technology

Aug 22, 2023

The journey to innovate board and paper machine technology has led to the breakthrough known as Sleeve roll technology. This innovative technology redefines dewatering by harnessing the power of compression already in the forming section, reducing the need for energy-intensive vacuum methods that conventional forming technologies rely on.

From OCC to board - Mondi Ružomberok PM 19

From OCC to board - Mondi Ružomberok PM 19

Aug 9, 2023

The Mondi Ružomberok mill is the biggest integrated pulp and paper mill in Slovakia. Their new containerboard line PM 19, including the OCC line, was successfully started-up in 2021.

From unknowns to benefits

From unknowns to benefits

Aug 9, 2023

Stock preparation and wet end processes are typically full of unknowns for board and paper makers. Ville Piikkilä, Business Manager for Valmet Board and Paper Automation Solutions, explains how to turn these unknowns into new benefits.

Scaling up for the future

Scaling up for the future

Aug 9, 2023

APP is investing in a huge new paper manufacturing complex with the world’s highest production capacity, in Rudong, China. The mill aims to realize the benefits of scale by taking advantage of digitalization, future-oriented design and energy-efficient technology.

Successful forming section upgrade leads to improved performance at Sappi’s Tugela mill

Successful forming section upgrade leads to improved performance at Sappi’s Tugela mill

Aug 4, 2023

A few years ago, Sappi launched a multi-year modernisation plan to improve both production and paper quality of its Tugela mill, based in Mandeni in KwaZulu-Natal. In the first phase, the forming section of the mill’s PM2 was upgraded successfully with Valmet’s support.

Disruptive co-innovation

Disruptive co-innovation

Aug 2, 2023

The green transition creates sustainability challenges for the fiber-related industry. How can we use co-innovation to tackle these challenges?

Asia Symbol PM 13: Advancing to a new high

Asia Symbol PM 13: Advancing to a new high

Jul 31, 2023

In 2022, Asia Symbol Guangdong Paper (ASGD) started up their new PM 13 machine. The project took just 17 months and started up on schedule in March 2022. Just four months later it reached a speed of 1,610 m/min.

Retention measurement for a stable wet end and optimized paper quality

Retention measurement for a stable wet end and optimized paper quality

Jul 19, 2023

Opal Packaging, Australia, is using Valmet Retention Measurement in their BM9 to measure and control headbox and white water consistency, while optimizing their chemical consumption and paper quality.

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