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Industrial Dehumidification: The Printing Industry

Views:301     Author:Site Editor     Publish Time: 2020-10-05      Origin:Site

If the printing paper is wet, consider using a household or industrial dehumidifier to control the humidity. If the printing paper used is stored for a long time, and the surface is moist (you can consider using a household or industrial dehumidifier to control the humidity), there may be a phenomenon of not feeding paper. At this time, all we have to do is to dry the print paper. Industrial humidifiers are widely used and also have a role in the printing industry.

 

The printing industry uses a variety of complex processes to ensure the production of high-quality paper products. Since this field faces several unique technical challenges, including optimizing resources and energy use, several of these processes are focused on maintaining a favorable printing environment. Therefore, to ensure smooth and efficient operation, maintaining the best air quality and controlling the humidity level are two important points. The need to control humidity by adding or removing moisture is mainly due to the hygroscopicity of the paper.

 

Simply put, paper will absorb water, and the amount of water absorbed will vary according to the ambient temperature. Therefore, without proper humidity control, the paper will swell or shrink. This causes registration problems between images, which affects the quality of the paper. To help control air quality, the printing house introduces outdoor supply air into the space, which may add excess moisture in warm months and extremely dry air in cold months. Each must be handled separately from the HVAC system.

 

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The impact of printer moisture

 

As we all know, paper is transported in a moisture-proof container with a certain moisture content. But when the paper is stored in a printing device that is not controlled by humidity, it can still absorb moisture in the atmosphere. As mentioned earlier, uncontrolled humidity can cause water to be absorbed by the paper, which can cause registry problems. Paper with the wrong moisture content cannot be used for printing, so it will be considered as unused raw material.

 

In addition, even if there is little moisture in the paper, it may lead to weak, low-quality templates and poor imaging results; damaged paper will interfere with the absorption of printing dyes, making the image less clear and accurate. The humidity requirements of textile factories, printing factories, film factories and other places are generally very high, generally greater than 60% RH. Insufficient humidity in the printing and film production process will cause inaccurate color registration, paper shrinkage, paper adhesion, and product quality degradation. When using wet paper, the dye drying process is also more time-consuming, because it is necessary to consider the absorption of too much water.

 

Moisture also weakens the crystal lattice of the paper, resulting in pinholes on the surface. When there is too much moisture, the paper is not suitable for printing photos, because the final product may be sticky. Moisture absorption hinders all the most common printing techniques. Moisture affects the adhesion of toner in digital printing, and deformed paper often causes more frequent paper jams.

 

In offset printing, high moisture content will affect the interaction between the ink, the printing press and the paper. If ink jet printing is used, excessive moisture will cause smearing, delayed drying and ink spreading.

 


Why should we dehumidify during the printing process?


A high-quality dehumidification system can help distinguish the success of printing operations. Consumer groups of industrial dehumidifiers are roughly divided into two categories. The first type of user has no complicated product requirements, as long as it can meet the requirements of dehumidification, but it is highly sensitive to price; the second type is stronger units and some scientific research institutes and other institutions, which have higher requirements for the performance of the machine. Price is a secondary consideration. In small businesses that lack high-end storage equipment, ensuring proper humidity control is especially important.

 

The dehumidifier can remove excess water vapor from the air, and maintain a constant indoor humidity regardless of the indoor climate. These systems can explain the daily and seasonal changes in atmospheric humidity.

 

Another benefit of industrial dehumidifiers is the way they monitor and improve air quality. Most industrial printing equipment requires a lot of ventilation. Because machines release air pollutants such as chemicals, fresh air is needed to protect workers from serious health risks. Unfortunately, no major ventilation system is installed, and few operations can introduce fresh air. Humidifiers solve the problem by cleaning the air to clean chemical contaminants. Relevant technologies provide improved air quality. Cleaner air not only makes employees work safer, but also improves machine performance. Clean intake air allows the cooler to operate.


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More information 

 

Dehumidifiers can improve product quality, minimize waste of raw materials, and even help reduce indoor temperature. Therefore, in all types of paper printing process, the dehumidifier plays an important role. However, in order to ensure the best performance of the printer, it is very important for the application to choose a suitable dehumidifier.

 

The team of specialists of the company (Hangzhou Hongtai Electrical Appliance Co., Ltd.) has professional talents to help you select the perfect dehumidifier for your unique printing needs. Reach out to the website today to learn more.

 


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