How to achieve ink-and-ink balance, the operator must not only understand and study the organic relationship between ink and ink, the constraints between each other and the rules of subtle changes between them, but also analyze and discuss the undesirable consequences caused by the imbalance of ink and ink.
1. Analysis of the phenomenon that there is little water and little ink: In the printing process, there is a certain water film in the blank part of the printing plate. When the water film and the oil can contend, it will not be stained by the ink on the ink roller. If the moisture is too small, the amount of the water layer can not resist the adsorption of the ink on the blank part, the blank part will adhere to the ink, resulting in hanging dirt, and the amount of ink supply will make the printed matter dull, light gray, and false imprinting , The blots are covered with white spots like snowflakes. In this state, although the "water-ink balance" has also been reached, this "water-ink balance" is not the "water-ink balance" we want.
2. Analysis of the phenomenon of less water and more ink: At this time, it is most likely to produce uneven ink color of the printed product, hanging dirty, a certain part or a large layout due to lack of water leads to paste and paste. At the same time, the printed ink color is relatively dark, making the printed product become black and sloppy, the dots are not clear, especially for the reproduction of fine dots, and the image is not clear.
3. Analysis of the phenomenon of less water and ink: If the water content of the plate is too large, it is gradually spread to all the ink roller surfaces to form a water layer of a certain thickness, which hinders the normal transfer of ink. , The text becomes lighter, the handwriting is dull, gray, hairy, hairy, dull and dull. There is a halo around the imprint, the image is not clear, and there are no layers.
4. Analysis of the phenomenon of large amount of water and ink: When the water content of the plate is excessive, the ink color will become lighter, and it will often blindly think that the amount of ink supply is small, so the amount of ink is continuously increased. A vicious cycle of water and ink imbalance is caused, which causes the ink to emulsify seriously and accumulate on the surface of the ink roller, making printing impossible.
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