When the printing ink color is inconsistent, the operator of the Open Type Rotary Screen Printer ( https://www.hotairstenter.com/product/ ) should adjust the pressure of the water bucket roller, the pressure of the plate water roller and the plate, the pressure of the plate ink roller and the plate, and the two ends of the ink inking roller. pressure. During the printing process, the operator of the open rotary screen printing machine should pay attention to the "three levels", that is, the ink roller is flat, the water roller is flat, and the roller is flat. Only when the pressure of the water and ink rollers are within the normal range can the ink color of the printed product be guaranteed. Consistent.

Operators of open rotary screen printing machines need to be familiar with pre-press professional knowledge, understand gray balance, color management and other technologies, which are more conducive to printing operations; familiar with the original and auxiliary materials such as paper, ink, fountain solution, printing plate, blanket, etc. The basic composition, performance and changes in the printing process can be taken before printing to prevent related failures.

The operator of the open rotary screen printing machine must master the skills of water and ink balance. When printing the pre-adjusted ink of each job, the amount of water should be reduced first. After printing the plate paper, when the printing speed is gradually increased, the alcohol in the fountain solution volatilizes quickly, and the mouth is prone to float. The chief of the printing machine should diligently check the printed products, observe the middle and sides of the paper at the mouth, and if there is scumming, increase the amount of water until the scumming disappears. While increasing the amount of water, it is necessary to increase the amount of ink until the water and ink balance. This is because if only the amount of water is increased, and the amount of ink is not added, the ink color will be diluted, resulting in the color of the printed product being lightened, and the ink color before and after cannot be consistent.

The Hot Air Stenter ( https://www.hotairstenter.com/product/hot-air-stenter.html ) operation technician should learn to observe the signal bar. During the printing process, the operator of the hot air tenter must pay attention to the changes of the signal bar at all times to ensure that the solid density on the signal bar is within the standard range, the gray balance is not discolored, and 80% of the dots are not dead. The printed product at this time Is a qualified proof.