Some printed materials require high friction resistance. For example, the printed products packed with cigarettes in her hands need to be transferred on a high-speed production line. The surface of the printed products must also bear a certain amount of friction. The text is erased, which affects the quality of the printed matter and brings pollution. Prints are not resistant to friction, the main reasons are: 1. There are more residual solvents in the ink film, or the use of non-drying vegetable oil, so that the ink is not completely dry; 2. The ink film after drying is not dense and the hardness is not enough, it will be wiped off after receiving a certain friction. 1. Improve the curing speed and drying speed of the ink, so that the printed matter is completely dried before use. For inks with dry oxidized conjunctiva, it is mainly solved by using resins with good solvent release and high softening point, using dry vegetable oils such as tung oil, Yayou, and high-quality catalysts. For light-curing inks, It is necessary to select high-quality initiators and light-curing resins; 2. Improve the rubbing resistance of the dried ink film. The main method is to use resin with dense film formation and high hardness. At the same time, the micro-particles with small friction coefficient, certain hardness, and small particle diameter will resist this force first when encountering the external force, so as not to let this external force destroy the ink. To make the friction-resistant contact with external force first, it is required that the friction-resistant agent must migrate to the surface of the ink film during the drying process of the ink, and form a layer of friction-resistant layer on the surface of the ink film. home beauty device,home rf beauty device,home use beauty device,home care beauty device Xi'an Double H Health Technology Co., Ltd , https://www.xadoubleh.com
The solution to this problem is: