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Good print quality, a detail is important
2019-11-15
 
A detail often determines the life and death of a company. The current market competition is intensifying. The printing factory needs to be different. If it is a boutique, it must be improved and grasp the quality of printing. For example, in terms of humidity, have you noticed?
Temperature and humidity will affect the paper:
Paper is made up of plant fibers, which are porous and hydrophilic and very sensitive to water. The ambient temperature and humidity will change slightly, and the paper moisture content will change. The influence of relative humidity of air on the water content of paper generally increases the relative humidity and increases the water content of the paper. Conversely, the relative humidity decreases and the water content of the paper decreases. The effect of temperature changes on paper moisture content is different. Generally, the temperature rises and the water content of the paper decreases. The water content of the paper is directly related to the printing performance. For example, changes in the moisture content of the paper can cause the paper to stretch (including local deformation). The dimensional stability of the paper has a lot to do with the suitability of the print and the suitability of the registration. Into it is a multi-color overprint product, the paper size changes, will cause product overprinting is not allowed, become a defective, waste. Therefore, the dimensional change of the paper due to the influence of temperature and humidity is one of the important problems in the printing workshop. Changes in the paper's water content can also cause changes in other properties of the paper. If the water content increases, the tensile strength and surface strength of the paper decrease; if the water content is too low, the paper becomes brittle and hard, and the static charge is easily generated during printing.
Effect of temperature and humidity on ink:
The temperature and humidity affect the ink is the drying speed. Various printing inks are affected by temperature and humidity. Generally, the higher the temperature, the faster the drying; the lower the temperature, the slower the drying. In particular, the ink in the lithographic process causes emulsification during the printing process due to the presence of dampening solution, so the relative humidity affects the evaporation of moisture in the ink. Therefore, the temperature and humidity have a direct influence on the drying speed of the ink. If the temperature is too low, the relative humidity is too large, which will reduce the drying speed of the ink and the printing cycle. The temperature and humidity of the environment also affect the viscosity of the ink. As the ambient temperature increases, the viscosity of the ink decreases; the ambient temperature decreases and the viscosity of the ink increases. If the temperature is too low and the viscosity of the ink is too high, printing failure may occur, such as partial peeling of the paper surface, sticking to a blanket or a printing plate. Therefore, controlling the temperature and relative humidity of the printing shop can control the drying speed of the ink and cause printing failure. If the temperature and humidity are out of control, the substrate will generate static electricity: the temperature and humidity of the printing workshop is too low, and the relative humidity is too low, which will cause the substrate to be electrostatically charged during the printing process. The consequences of static electricity can cause difficulties in paper feeding and delivery, and on the other hand, printing failures, and even fires due to discharge.
The Fangtian A series uses a special industrial humidifier circuit board, a high-reliability toroidal transformer, and a full range of water filters. It is simple and convenient, and employees do not need to learn anything. We look forward to the Fangtian A series industrial humidifier as a good helper for your production and life.



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