Drying process
Ikeuchi provides a number of solutions for the drying process in the paper and pulp industry
Paper drying process
The drying process in paper making is an important stage in the production of paper. The drying process reduces the moisture content of the paper web after it has been formed and pressed. The drying process also ensures that the paper attains the desired physical properties and quality for its intended use.
Highlights
- Paper drying
- Polishing process
- Size press
- Dryer canvas
- High wear resistance
Enhance the paper drying process with wear resistant spraying equipment
Lubricant spraying
During the drying process, lubricant spraying is important in order to keep the sheet moving smoothly and protect the equipment. It is important that the lubricant spraying consist of fine atomization to avoid wetting the sheet. For this application, we recommend our fine atomization BIM two-fluid nozzle. The BIM nozzle has a droplet size 100 µm or less.
Size-press
After the pre-drying section, the paper is transferred in the size press where nozzles are spraying starch onto the wet web of paper. This process is required to enhance the binding of the paper fibers, making it stronger and durable. The nozzles that can assist with the spraying of starch are our AP and VP-series.
Dryer-canvas
After the size-press, the paper is transferred to the dryer canvas. Its primary function is to support the paper web as it passes through the drying cylinders, ensuring efficient and even drying while maintaining the quality and integrity of the paper. Within this section a series of nozzles is requested to be installed to ensure that the dryer canvas is kept clean. The BIM header nozzles are suitable for this type of operation, as they provide a uniform distribution. Moreover, the volume of spray can be controlled, which assist in reducing the amount of utilized spray. The paper is then transported to the drying section.
Cooling soft calendar roll
At the end of the drying process, it is important to cool the soft calendar roll in order to prevent blackening, cracking or curling. If the paper is too hot when passing through the nip, high compression can lead to an effect known as “calender blackening.” This is where the paper becomes too dense and develops small, translucent, dark spots that ruin the aesthetic and reduce print quality. For this process, we recommend our TAIFUJet® air nozzles.
- High chemical resistance
- High precision spraying
- High wear resistance
- Reduced water consumption
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