Ink drying speed and cleaning knowledge

The drying speed of ink is greatly affected by the paper, because the ink is mainly used for the printing of paper, mainly based on the infiltration drying method. When the ink drying is slow, a looser substrate of paper fibers may be used to speed up the penetration and allow the ink to dry faster, and vice versa. In the case of a certain substrate, inks with a moderate drying speed should be selected. In general, the higher the emulsion resin content in the ink, the faster the drying. Ink such as ethanol, isopropyl alcohol, propylene glycol monomethyl ether, etc., can also be used to make the ink dry quickly. In the adjustment of the printing conditions, it may be considered to increase the drying temperature, lower the printing speed, lower the printing viscosity, and the like so that the drying is sufficient. Maintaining the temperature and humidity of the printing environment also has a certain influence on the drying speed.

As far as the cleaning aspect is concerned, if the ink is relatively quick-drying, it is relatively difficult to clean. When cleaning, it is best to do it as soon as possible. Care should be taken not to wash the ink completely until it is completely clean. Cleaning will become very difficult at this time. Cleaning can also be considered to add propylene glycol monomethyl ether detergent powder, etc., to improve cleaning efficiency. (Gao's Guangzhou Paint Co., Ltd.)