Has just bought a new ink and ink, if not finished, if not stored properly, it is easy to produce quality problems. So, in the preservation of ink, which should pay attention to what the problem, in order to keep the quality of the ink to maintain it? 

Problems should be paid attention to in the preservation of new ink 

The ink viscosity decreases with the increase of temperature, and the viscosity increases with the decrease of temperature. The placement of some ink in 3 DEG C or below 0 DEG C environment will be solidified into a state of jelly, called the gelling phenomenon, if ink appeared "gelation", usually need to warming beyond the gelling point temperature 5-10 DEG C to restore to the original state. Therefore, in the cold area, the winter storage of ink to pay special attention to. 

Due to the new ink stored for a long time do not know, the ink formulation ingredients sometimes stratified or precipitation of the phenomenon, so when in use must put ink inverted bucket, shaking or stirring. 

Management method of old ink 

Due to the use of gravure printing ink for plastic solvent low boiling point solvent. Therefore, the printing process of volatile will make a mixed solvent ratio imbalance, or due to solvent evaporation cooling, so that the ink surface or the surface of the roller super cooled, so that the air infiltration of moisture to the ink to. In addition, in the printing process, due to the film's debris or electrostatic dust mixed with ink and other reasons, especially the pattern area is small, the amount of ink is more likely to change. The remaining ink is often low viscosity, the occurrence of rapid separation and precipitation. Therefore, again use must be fully stirred, or with more than 100 mesh of metal mesh filter, mixed with the new ink for digestion. If you continue to store, you must seal, indicate the type of ink, and attach the tag, placed in the shade.