Printing ink as well as preparation method and application thereof

The invention discloses printing ink. The printing ink is prepared from the following components in parts by weight: 10 to 90 parts of terminated oligomer, 0 to 5 parts of bifunctional monomer, 0 to 30 parts of polymerizable oligomer, 0 to 5 parts of surfactant, 0 to 5 parts of photoinitiator and 0 to 90 parts of organic solvent. Meanwhile, the invention also discloses a preparation method of the ink, which comprises the following steps: mixing the terminated oligomer, the bifunctional monomer, the polymerizable oligomer, the surfactant, the photoinitiator and the organic solvent to obtain the ink. A coating prepared from the ink can still keep stable under ultraviolet light, and has the characteristics of higher reflection wavelength, larger wavelength shift and lower temperature range when reactive reflection wavelength occurs. 本发明公开了一种油墨，所述油墨包括按重量份数计的以下组分：封端的低聚物10-90份、二官能度单体0-5份、可聚合低聚物0-30份、表面活性剂0-5份、光引发剂0-5份和有机溶剂0-90份。同时，本发明还公开了油墨的制备方法，包括以下步骤：将封端的低聚物、二官能度单体、可聚合低聚物、表面活性剂、光引发剂、有机溶剂混合得到油墨。通过本发明的油墨制备的涂层在紫外光下仍