You may know the viscosity of water-based PE, pet, po inks!

One: Pay attention to the influence of temperature on the viscosity of water-based PE, pet po inks

When the temperature difference between winter summer is large, the viscosity is the most sensitive. When the temperature is high, the moisture evaporates quickly the drying is fast. When operating, you must pay attention to prolong the drying time increase the speed of the machine; when the temperature is low, the moisture evaporates slowly the ink drying is also slow. During operation, you can increase the ink drying speed add Turn on the drying device. In winter, the ink is easy to freeze because it is below 0℃. If the ink is frozen, it can be placed in a room with a high temperature to allow it to dissolve naturally. After stirring evenly, it can continue to be used.

Two: Pay attention to the effect of thixotropy on the viscosity of water-based PE, pet po inks

Thixotropy refers to the fluidity of the ink increases under the action of external stirring, the fluidity gradually decreases after the stirring is stopped, the performance is restored. After the ink has been left for a long time, some inks with poor stability are prone to sedimentation delamination, others appear to be thick. At this time, it can be fully stirred. After a certain period of time, the above problems will naturally disappear.

Three: PH value affects the viscosity of water-based PE, pet, po ink

When the PH value is higher than 9.5, the alkalinity is too strong, the viscosity of the water-based ink is reduced, the drying speed becomes slow, the water resistance becomes poor, paste printing is easy to occur; when the pH value is lower than 8.5, that is, the alkalinity is too weak, the water-based ink The viscosity will increase, the ink is easy to dry, clogged on the plate the anilox roller, causing the plate surface to be dirty generating bubbles. The influence of PH value on the printability of water-based PE, pet, po inks is mainly reflected in the viscosity stability dryness of the ink the dot clarity. As the pH value increases, the viscosity of the ink drops the drying speed becomes slower.