The exquisite advertising images we usually see indoors and outdoors cannot be separated from the high-performance advertisement printer and ink, where the quality of the ink can directly affect the quality of the output advertisement image. So, what kind of ink is the best? How to distinguish the quality of ink? We can make judgments from the following aspects:

1. The purity and salt content of the raw materials. High-purity raw materials will better restore the saturation of the image and fully show the bright parts of the image; too high a salt content will cause the ink to produce a certain amount of alkali during the high temperature inkjet process,resulting in blockage of the nozzle. 　　

2.Viscosity. If the advertisement printer ink viscosity is too large, the ink supply will be interrupted during the printing process; if the viscosity is too small, the ink will flow during the printing process.

3. Drying speed, the speed of the drying speed affects the winding speed of drawings during work and the overall efficiency of printing. 　　

4. pH control, the pH of the ink is directly related to the use time of the ink supply part of the machine; and the printing effect of the image and the length of storage time after being connected with the inkjet media.

5.Particle distribution (pigment type). The distribution of particles directly affects the effects of UV resistance, water resistance, and image saturation.

6. Weather resistance, the ink is generally divided into 1 to 8 grades of weather resistance, the higher the grade, the longest weather resistance time. Including anti-ultraviolet, anti-acid rain, anti-humidity, anti-sand and so on.

In addition, there are bacterial content, metal ion content, color La, b value, heat resistance, conductivity control, measurement point test, silt penetration test, silt test, smear resistance, light Fastness, water resistance, etc. are all factors to judge ink quality. Finally, remind everyone that it is best to buy ink from a regular manufacturer, which is good for the advertisement printer.It is recommended to buy original ink from the advertisement printer manufacturer, or high-quality ink recommended by the manufacturer.