In order to meet the humidity requirements of the printing production process: the humidity of the air is the same as the temperature, which is an important factor in air conditioning. All materials should hold enough water. In an environment that is too dry, air will absorb water from the material. In the production process of the printing industry, it is especially necessary to ensure sufficient humidity:
1 : Eliminate static electricity. Paper is prone to static electricity. Workers often have a sense of electric shock and are accompanied by static hand-on-hands, especially in the dry seasons of autumn and winter. The intensity of static electricity is closely related to the ambient humidity. Static electricity is active at 30% relative humidity, and the lower the humidity, the more active the static electricity. It gradually weakens as the humidity increases, and disappears substantially in a humidity environment of 50% or more.
2 : Prevents deformation and deformation. Due to the variety of paper, the expansion and contraction rate is different. If the paper and the environment cannot reach the humidity balance, the following conditions will occur: the paper absorbs moisture and swells, loses moisture and shrinks. When the deformation is serious, the monochrome printing machine can't overprint. When multi-color printing, there will be a color-to-color extension phenomenon, or the dragging position is a fan-shaped " corner angle " , causing overprinting or the front and back sides to be inaccurate due to expansion and contraction, or The printed paper has different retractions, which brings a lot of trouble to the next processing.
3 : Avoid wrinkles. The reason is due to its paper crease a "lotus leaf" or "tight side" and so on, so that the paper can not be flat stretch, wrinkles occur during printing. This phenomenon can cause a large amount of waste in the printer.
4 : Paper dust. The paper powder contained in the paper and the dust contained in the air fly around in the dry room, which has different effects on the quality of the printed matter. When the indoor humidity exceeds 50% , various dust fly ash absorbs water and becomes heavy and falls. It can be seen that temperature and humidity have a great impact on the printing industry. Looking for Beijing Jinbaixin industrial humidifier.
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