The quality of offset printing products is inseparable from the consistency of ink and water. In the printing process, the amount of water supplied too much or too small is often easy to occur, because the amount of moisture in the printing plate is manifested from the dirty surface of the printing plate. However, the so-called dirty is not only caused by the small amount of water, the operator often mistakes the water supply amount to cause the ink and water to lose balance and form a vicious circle. What kind of printing consequences are caused by excessive moisture?
Therefore, I think the heater plays an important role in graphic production. However, some problems have also been presented during the practice test. For example, the problem of the copper plate of the printer is not well controlled, and it is not easy to dry, simple to fade, slow, the adhesion of the ink is not strong, and some papers are printed with ink. So is there a better way to deal with these problems now? The answer is yes.
Imitation printing ink is also weakly soluble ink, so many people are worried that this ink is corrosive, so it is daunting to him. Yes, since it is dissolved in ink, the corrosiveness is inevitable, but the pH of this ink is not very high, weak base, and some taste. In fact, we use the general ink does not rule out the damage to the machine nozzle. If the quality of the ink is not good, it will damage the nozzle. I used a company's pigment ink to break the nozzle. So the question is how to look at this problem, if we are getting a good reward, it is still possible to dedicate something.
On the other hand, it is necessary to add a stabilizer in a quantitative manner. Generally, the pH value of the water-based ink should be kept between 8.0 and 9.5. If the pH value is too high or too low, the printing quality will be affected. When the pH value is too low, the printing performance of the acrylic resin will be affected. When the pH value is too high, the ink will dry slowly. It is prone to the problem of dirty and poor water resistance on the back of the printed product.
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