How Does Tube Packaging For Cigar Prepress Combine Perfectly With Commercial Rotary Printing

How does Tube Packaging For Cigar prepress combine perfectly with commercial rotary printing

Commercial rotary printing machine printing speed is fast, before reaching the normal ink color and registration, there will be a lot of waste and defective products. In order to improve work efficiency, produce qualified printed matter as soon as possible, reduce unnecessary waste of ink, paper, etc., pre-press production should use plate scanning, and control the color difference between printed matter and design in a minimum range.

Plate scanning can reach 80% of the normal amount of ink required for printing, through the adjustment of the overall ink characteristic curve, you can quickly produce genuine products, greatly improve the work efficiency, which is particularly important for those without proofing printing work. Plate scanning work is more obvious for those short plate printing with proofing, it greatly shortens the time for commercial rotary machines to open normal ink, saves a lot of paper, ink and other raw materials, and reduces costs for enterprises.

If the scanned curve is very different from the normal ink curve of the actual printing, the following aspects should be checked before printing:

Different models have different widths of red film. For example, Heidelberg M-600 roller with a circumference of 598mm requires a red film width of 23mm, while M-600 roller with a circumference of 578mm requires a red film width of 23.1mm. The greater the difference from the actual width required, the greater the impact on the scanning results. Therefore, the actual operation should be combined with the model used, through the red film to expose the appropriate width of the field block.

Secondly, check whether the smoothness of the plate used is ideal, sometimes the plate is dented, the surface is uneven, and the scanning results will be affected. The flatness of the general domestic printing plate is slightly inferior compared with the original imported foreign version. Reduce the impact of uneven plates by adjusting the suction volume of the plate scanner. Generally, when scanning imported plates, the intake level is selected as one level, and when scanning domestic plates, the intake level can be selected as two or three levels, depending on the surface flatness of the plate. After increasing the suction volume, the printing plate is more smoothly adsorbed on the scanning panel, which is conducive to correctly reflecting the ink demand of the upper part of the printing plate. However, blindly increasing the suction volume may also suck in a lot of dust, which will block the suction hole for a long time and affect the scanning quality.

In short, in the aspect of pre-press production, it should be gradually realized that pre-press production can adapt to commercial rotary printing, and commercial rotary printing can not adapt to pre-press production. The pre-press production of commercial rotary printing is complex, and it is necessary to constantly explore and summarize in actual work in order to continue to improve the production level.