Why should the printing shop be humidified?

In order to meet the requirements of printing process for humidity: air humidity and temperature are the same, are important factors in air conditioning All substances should hold enough water In an excessively dry environment, the air will absorb water from the material In the production process of printing industry, it is particularly necessary to ensure sufficient humidity: 1 Eliminate static electricity Paper is prone to static electricity Workers often have a sense of electric shock, and accompanied by electrostatic beater phenomenon, especially in the dry season of autumn and winter The strength of static electricity is closely related to environmental humidity Zui is active at 30% relative humidity, and the lower the humidity, the more active the static electricity With the increase of humidity, it gradually weakened, and basically disappeared in the humidity environment of more than 50% 2: Prevent expansion and deformation Due to the different varieties of paper, its expansion and contraction rate is different If the paper and the environment can not reach the humidity balance, it will cause the following conditions: the paper absorbs moisture and expands, loses moisture and contracts When the deformation is serious, the monochrome printing machine can't overprint When the multicolor printing, the monochrome printing will stretch in turn compared with the monochrome printing, or the drag part will show a fan "swing angle", resulting in overprinting, or the front and back sides are not allowed to fold due to stretching, or the printed paper stretching is not the same, which brings a lot of troubles to the next processing procedure 3: Avoid wrinkles The reason of paper wrinkling is that the paper can't stretch flat because of the phenomenon of "Ruffle edge" or "tight edge", and wrinkling occurs during printing This phenomenon will cause a lot of waste products in the printing press 4: Reduce paper dust The paper powder contained in the paper and the dust contained in the air are flying everywhere in the dry room, which has different effects on the quality of the printed matter When the indoor humidity is more than 50%, all kinds of dust and flyash absorb water and become heavy and fall to the ground It can be seen that temperature and humidity have a great impact on the printing industry Find Beijing jinbaixin industrial humidifier.