Glass product drying method after printing

After printing, glass products are dried differently from other substrates by two methods, namely, natural drying and forced drying.

Natural drying is to place the printed glass product in a proper place and allow it to dry naturally. Because of the different conditions of air temperature and air circulation, the speed of drying is also slow, sometimes to speed up drying, and it can also be dried by cold and warm air. After the glass products are printed, they must be fully dried before firing. The firing temperature should not exceed 120 °C. And the firing temperature should be gradually increased from low to high. This must be noticed.

When printing in high-volume multicolor glass products, forced drying methods are often used. The most commonly used is electrothermal drying. For multi-color printing, dry one time for each color of the ink, only after four colors are printed, can the firing be performed. The firing temperature should not exceed 120°C.

Source: China and Hong Kong Silkscreen