1. First of all, you should understand that mirror inks are as rare as water, and printing skills are the key. When the printing speed is slow, on the one hand, the mirror ink that is water-like will leak down the screen, on the other hand, the mirror ink is easy to absorb moisture in the air, after printing The mirror effect obtained is not good. Therefore, when printing, the mirror ink must be continuously printed quickly after being poured into the screen to complete the smooth printing. That is, the speed of checking the workpiece while printing will affect the printing effect. For example, blocking the network, the ink can not print, slag on the screen, etc.
2. The environmental temperature and humidity when printing mirror ink is very important, because the ink is easy to dry on the screen, so it can not be screen printed under air circulation, otherwise it is very easy to block the network, when the air humidity is high, the mirror effect is poor, so When screen printing, avoid air flow and humidity as much as possible.
3. Since the ink is rare like water, you should choose a high-mesh screen. Not only that, but the hardness of the glue scraper should be harder, which can be more than 80º.
4. The mirror ink must be fully stirred before use, so that the aluminum powder and the resin must be fully mixed evenly to ensure the appearance of the mirror effect, otherwise it will affect the production of the mirror effect.
5. The tension of the screen is slightly lower, the screen distance is also adjusted closer, and the scraping pressure of the scraper is appropriately reduced, otherwise it will destroy the formation of the mirror effect.
6. When using mechanical printing, the ink-recovery knife can not be made of hard aluminum or stainless steel. Instead, use a colloidal ink-recovery knife to ensure that the screen printing ink is evenly applied to make the mirror effect uniform.
7. The mirror effect of the mirror ink is related to the drying method. As far as the mirror effect is concerned, natural drying is not as good as heating and drying. Note that the temperature of heating and the drying time should be the same, otherwise the mirror performance and color saturation will also be There is a difference.
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