We know that most industrial production is affected by humidity, as is printing production. Although it seems that the printing production technology is not high on the surface, and the production equipment has no requirements for operating conditions, the production process has certain requirements for air humidity, especially paper, whether newsprint, corrugated paper or other paper, can not be printed in a high humidity environment.
The paper looks very dry on the surface, but in fact this drying is very limited. As long as the air humidity is higher than 70% RH, the paper will be affected by moisture. Among them, newsprint, which is our usual newspaper, is most affected by moisture. It is even used as a desiccant, followed by corrugated paper, paper for printing books, A4 paper, etc., and coated paper is the most difficult to be affected by moisture. Of course, the hygroscopic capacity of toilet paper used in our life is also great.
In the printing process, if the paper is damp, it will expand and become larger, which will lead to the phenomenon of prohibition. In addition, when the paper is damp, there will be lotus leaves, which will lead to printing errors. For example, pirated books we often see will have obvious indentation or folding marks, which is a manifestation of lotus leaves after being damp.
For printing production, if the paper is not affected by moisture and paper jam, it is necessary to control the air humidity in the workshop and warehouse. The air humidity is 45-60% RH. If it is too high or too low, it will affect the printing quality. In addition, moisture will slow down the drying speed of ink and lead to blurring of handwriting patterns. Therefore, moisture-proof work is very important.
Zd-8168c printing factory dehumidifier is used for moisture prevention. It adopts freezing dehumidification technology and is equipped with imported compressors and centrifugal fans. It has strong wind power, large dehumidification capacity and fast speed. The LCD displays the air humidity, which is automatically controlled by the microcomputer. It can automatically dehumidify according to the input air humidity value. The operation is simple and convenient. The high-sensitivity hygrometer can control the humidity error within about 1% RH. It is used in the printing plant workshop and warehouse with good moisture-proof effect.