Drying method of glass 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.

81 Which type of lamp is ideal in silk screen platemaking?

Ultraviolet cold light is an ideal light source. If there is a strong ultraviolet light, the effect is better. Domestic mainly consists of 20W/A branch, 30W/A branch, 40W/A branch, 80W/A branch, 8W/branch, followed by high-pressure mercury lamp, high-pressure xenon lamp, high-pressure mercury lamp is not an ordinary small solar lamp, and is a plate making Dedicated lamp.

Use these two kinds of lamp plates, pay attention to the temperature of the glass surface in the hot season, if necessary, add fan cooling to prevent cross-linking caused by overheating and photoresist.

And can not be started continuously, that is, after the lamp is turned off, it can not be restarted after at least 5 minutes.