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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Interested to know more about our board and paper deliveries?

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Read more about Valmet's air drying & chemical systems, which complete high-quality coating & sizing
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Planning a grade conversion?

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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Rebuilding a paper or board machine can improve the competitiveness of your business and your processes. Download our e-book to learn more.

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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.

Improved HC press control with Valmet High Solids Measurement

Improved HC press control with Valmet High Solids Measurement

May 25, 2023

BillerudKorsnäs Karlsborg’ mill wanted to measure pulp consistency before high consistency refining, after the HC presses, so they acquired two Valmet High Solids Measurements (Valmet HS) installed in stock preparation before the board machine.

GSPP PM3 - sustainable containerboard production in Malaysia

GSPP PM3 - sustainable containerboard production in Malaysia

May 25, 2023

In 2021, GS Paperboard & Packaging (GSPP) started up their PM 3 board machine at their Selangor site in Malaysia. It produces testliner grades from 100 percent recycled raw material and is equipped with the most modern Valmet-supplied papermaking technology.

Asia Symbol PM 13 advances to a new high

Asia Symbol PM 13 advances to a new high

May 25, 2023

The construction and start-up of Asia Symbol Guangdong Paper’s (ASGD) PM 13 represents a new success. 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.

BCTMP line and BM1 start-up at Liansheng Pulp & Paper in Zhangzhou

BCTMP line and BM1 start-up at Liansheng Pulp & Paper in Zhangzhou

May 24, 2023

Experience the successful startup of folding boxboard making line BM1 on May 1, 2023 at Liansheng Pulp & Paper (Zhangzhou) Co., Ltd. The start-up of BM1 marks an important milestone of their integrated forestry-pulp-paper project with an annual output of 3.9 million tons. It’s another solid monument built by both Valmet & Liansheng. The filler ply pulp of BM1 is from Valmet BCTMP line, which was successfully started up on the same day.

Pick-up roll running time extended at Hamburger Hungaria

Pick-up roll running time extended at Hamburger Hungaria

May 22, 2023

Hamburger Hungaria was troubled by short running times, an unscheduled downtime and extensive maintenance on its PM 7 pick-up rolls. In 2019, Valmet delivered two oil-lubricated pick-up rolls with a two-suction chamber solution to the mill and the running time of pick-up suction roll more than tripled.

Valmet and Cascades celebrate successful start-up of a grade conversion rebuild at Bear Island in Ashland, Virginia

Valmet and Cascades celebrate successful start-up of a grade conversion rebuild at Bear Island in Ashland, Virginia

May 19, 2023

On May 2, Cascades announced that it produced its first roll of 100% recycled containerboard at the Bear Island mill in Virginia, United States. As previously announced, Valmet supplied an extensive paper machine-grade conversion rebuild for this mill. 

Increased roll cover grinding intervals at Indah Kiat Pulp & Paper Perawang

Increased roll cover grinding intervals at Indah Kiat Pulp & Paper Perawang

May 15, 2023

Indah Kiat Pulp & Paper Perawang in Indonesia targeted to increase calender roll cover’s regrinding intervals in their PPM3.

Indah Kiat Pulp & Paper Perawang improved roll reliability

Indah Kiat Pulp & Paper Perawang improved roll reliability

May 15, 2023

Indah Kiat Pulp & Paper Perawang (IKPP) in Indonesia invested in roll reconditioning to ensure improved roll performace at their PPM6.

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