Solve the problem of offset printing field version

current. Packaging design of the appearance of the product more use of large blocks of large field. Used to highlight the highlights of the product. In order to achieve the effect of stimulating the human visual perception. This gave us a lot of trouble in the operation of offset printing.

One. Large field version of the product because of the original requirements of thick ink. To achieve the original requirements must use two editions under the ink in order to print thick and flat clothes. Because of the large amount of ink. The water volume also increases accordingly. Causes the ink emulsification degree to increase, the product drying time extends. Processing cycle at the same time Yanshun. Work efficiency is greatly reduced. Short-lived regular delays are required for quick delivery time.

Second, Due to the large amount of ink, despite the precautionary measures set up in the early stages, there are still some inadvertent sticky phenomenon. Only to increase the amount of “dusting powder”, this has caused some difficulties for post-press processing. Although in the film, coating before the powder removal measures. But the powder embedded in the ink is difficult to remove. The film and coating products remain in the ink. And there are imaginary and pitted points. Causes the appearance of the product to be affected.

In order to solve the above problems. Recommended by peers. We chose the “Zebao” anti-adhesive and dirty product that was produced by China Science Congshan Company for trial. According to the requirements of the product specification. Ink color ink in the field added 7% of the "Yebao." Ink with Shanghai Peony Quick Dry Black Ink. With two plates at the same time under the ink. Edition faces 80% of the field. Paper with 300g gray version of cardboard, and appropriate adjustments. Reduce the amount of water. Boot speed 10000 /, J, hour. Turn off dusting completely. An initial trial of 1,500 sheets (stacked paper) was sampled. Ink drying speeds up. The back of the product is not sticky. In the printing process ink transfer performance is normal. No ink roller crust conjunctivae appeared when the machine was running or stopped. Half an hour after printing, red and yellow overprints are made. After finishing printing. Half an hour on the machine. The pimples of the pitting caused by a large amount of powder coating also disappeared completely. The tested products basically meet the proof requirements. After the first test is successful, it is processed like the back 6000 India. No error occurred during the entire operation. In this regard. The author realized that. Difficulty in handling operations. Can not stick to the rules. Be bold and innovative. Finding new solutions. Especially on the market for new materials. To sum up experience in practical work. Can become passive to take the initiative. Improve your operating level. Solve new problems that constantly appear in production.

Author: New Concept Color Printing Company, Nantong City, Jiangsu Province