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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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 desired coat weight. In addition to having a major impact on end-product quality, blades also improve production efficiency which in turn leads to more saleable production.

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 threading times.

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.

Natura Paper investing in safety with Valmet Tail Threading Conveyors

Natura Paper investing in safety with Valmet Tail Threading Conveyors

Feb 28, 2023 | Reference

Natura Paper Co. Ltd, in South Korea is a newsprint production company. The mill wanted to improve operators' safety in the tail threading area. With Valmet Tail Threading conveyors no manual interference by operators is needed and the system automatically adjusts to all running situations.

Smart technology utilization in the refining & chemicals industry

Smart technology utilization in the refining & chemicals industry

Feb 28, 2023 | Blog

Over the years the field devices used in various process industries have changed from simple to more intelligent. Through the enhanced intelligent features, these smart field devices present process industries wide range of possibilities. Yet we find that the functionalities and benefits of smart technology are often not yet fully utilized. This is particularly the case when it comes to diagnostics features. We at Valmet hope to change all that.

4-steps to energy efficiency: Benchmark your energy efficiency within the industry

4-steps to energy efficiency: Benchmark your energy efficiency within the industry

Feb 28, 2023 | Article

Every board and paper mill is its own production line’s best expert. However, knowing only “your own pockets” is not enough, given that the industry is at a crossroads because of the current energy market conditions. At this crossroads, you need to partner up to take the right steps.

Runnability improvement on press section with Valmet Black Belt

Runnability improvement on press section with Valmet Black Belt

Feb 28, 2023 | Reference

Paper Corea produces linerboard between 80 to120 g/m² with a production capacity of 210,000 t/y. The mill had a strong target to improve the runnability for producing linerboard of over 100 g/m² basis weight by preventing back flow phenomenon causing the web to wrinkle in the shoe press nip position.

The Neles™ NDX 2.0 delivers on sustainability

The Neles™ NDX 2.0 delivers on sustainability

Feb 27, 2023 | Blog

Many have asked what’s so different about the new Neles NDX 2.0 valve controller. While there are several technical developments worth discussing, we’ll start by looking at the considerable increase in the potential to improve the sustainability of valve assemblies and the processes they are a part of.

APP Jingui BM2: Moving towards a low-carbon operation

APP Jingui BM2: Moving towards a low-carbon operation

Feb 16, 2023 | Reference

In 2021, APP Group successfully started up their new Jingui BM2 machine. The Valmet-supplied technology used in BM2 helps the company meet its goals for low-carbon operations. Part of the delivery was an Enzymatic Starch Cooking ZE unit.

Papresa controls processes with stable consistency measurements

Papresa controls processes with stable consistency measurements

Feb 2, 2023 | Reference

Papresa S.L. in Spain installed Valmet Optical Consistency Measurements in their OCC pulp preparation plant and paper machine PM4 to control the processes.

Great expectations for Neles NDX™ 2.0 in China

Great expectations for Neles NDX™ 2.0 in China

Jan 26, 2023 | Blog

The Neles NDX has been a runaway success in China since its launch in 2016. This high-quality valve controller has become a go-to device for many of China’s oil & gas and chemical industry operators. With the recent launch of the latest update, the Neles NDX 2.0, we are looking forward to a continued popularity.

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