1、 Dirty version
The temperature is high in summer. Compared with other seasons, the water control volume should be appropriately increased, which is to increase the pressure of the water feeding roller; Increase the amount of water to avoid dirty version; 2. Strictly control the temperature; The printing ambient temperature should be controlled at 10-28 degrees, 15-25 degrees, not more than 28 degrees; If conditions permit.
Printing in an air-conditioned room to control the temperature; There is really no condition, and the machine must be moved to a cool place; 3. Humidity control; Humidity is inversely proportional to water control; That is, the greater the humidity, the less the water control volume should be; Generally speaking, the suitable environmental humidity of offset press is controlled between 50% - 85% relative humidity;
2、 Ink emulsification
In summer, the temperature is high and the ink becomes thin; At this time, No. 0 inking oil that thickens the ink should be added; At the same time, considering this factor, the water control should also be increased; 2 some operators may freeze the ink in the refrigerator, so that the ink thickens due to the decrease of temperature; But.
Because the temperature of the ink will gradually increase during the printing process, this method is only useful in the short term; 3 when selecting printing ink, it is to select less oily ink suitable for summer printing; If the ink is too thin, you might as well add a little dry oil; In fact, when controlling water, we should fully consider the comprehensive factors such as ink thickness, temperature and humidity, so as to achieve good printing effect.济南印刷厂讲解的内容 更多的内容 请咨询公司官网http://www.xinfengyinshua.cn/