1. Insufficient baking time or temperature after screen printing: After screen printing, the characters on many silica gel products become blurred after several times, mainly because the baking temperature and time difference are too far and the temperature is too low. The ink is not completely cured. Xiong Hui Electronic Technology Co., Ltd. suggests checking the set temperature and running speed of the roasting tunnel furnace. And whether the circulating fan is turned on.
2. The quality of screen printing ink is too poor to meet the standard requirements: you can't use the wrong ink. Silicone products generally use silicone screen printing ink, which has certain requirements.
3. The surface of silica gel product is too dirty and not cleaned, which affects the adsorption of ink and silica gel, resulting in the words being wiped off. Therefore, the dosage of release agent should not be too high, and the surface should be kept clean during subsequent processing and storage.
In short, screen printing technology is also widely used in processing industry. In the process of operation, we must pay attention to the baking temperature and time, especially don't use low-quality silk-screen printing ink to save costs.