| Sheet-fed offset press In Print Text larger area or field | | | | 3. Craft remedies and operation precautions |
| version of the print, often appears before the ink with | | | | (1) the aging of the ink rollers are too smooth to be |
| a print after the shallow depth the phenomenon of this | | | | replaced in a timely manner to ensure the ink transfer |
| phenomenon in addition to technical operation and | | | | roller a good performance and sufficient storage roller |
| regulation of improper, the more direct causes of the | | | | surface of ink to the printing ink consumed in the |
| layout from the machine itself and structure. | | | | reservoir with the ink roller to make the ratio may be |
| 1. Drum structure The inking roller to the plate on the | | | | small, it can enhance the ink roller to adjust the amount |
| process of ink, when the inking roller is in the air when | | | | of its capacity to print the same ink. |
| the plate cylinder position, the inking roller does not | | | | (2) master liquidity and viscosity of ink, because the |
| dwell, the ink roller on a large amount of savings, after | | | | flow of ink and the ink viscosity directly affects the |
| the drum roll forward and each inking roller have the | | | | transmission speed and roller ink reservoir. |
| greatest amount of ink to the plate before the ink port | | | | (3) strictly control the layout of water, to prevent |
| position, with the inking roller rolling on the ink, the ink | | | | excessive ink emulsification, to ensure the proper ink |
| roller gradually reduced drag roll to shoot part of the | | | | transfer and adhesion. |
| plate, the inking roller the ink has been few. This can | | | | (4) for uniform distribution of ink-type distribution, |
| easily lead to ink before the dark after the light. | | | | regulation by version roller pressure, the former two |
| 2. Arrangement of rollers Inking roller devices are | | | | should focus more, after the two should be lighter for |
| generally divided into two groups on the ink and the ink | | | | the contact between the width, front to back generally |
| collection, different models, two sets of rollers are | | | | adjusted to 6mm, 6mm, 4mm, 4mm. Inking roller and |
| arranged in different situation there. Uniform distribution | | | | string roller pressure, and should be equal to inking roller |
| of type ink roller is arranged in two-way split, four inking | | | | and the printing plate surface contact pressure. |
| roller dwell even for such a roller arrangement, if | | | | Because the inking roller rotation should be equal to |
| properly adjusted, then add the two inking roller will not | | | | rely on bilateral friction is more ideal, if the pressure |
| achieve any ink, ink absorption and recovery of | | | | difference on both sides too, inking roller ink roller in the |
| excess The role of ink layer, printed on extremely | | | | string or the surface of the rotating plate, sliding friction |
| shallow after dark before the onset of the | | | | will not become pure friction rotation, then it will affect |
| phenomenon. The inking roller more than a few | | | | the ink normal transmission, but also affect the inking |
| pre-dwell type, the former two inking roller 90%, 10% | | | | roller to the layout of the uniform coating. |
| after 2, so that the distribution of printed ink generally | | | | (5) shallow pad of paper in ink, increasing printing |
| does not produce the phenomenon of light after dark | | | | pressure can also play a role in remedying. |
| before. | | | | |