Carton Box Printing Technical Control Analysis Essentials

Letterpress site layout to avoid a fight with the color version of the small yin line and text, to avoid pressure for the ink can not fully take into account, prone to uneven paste version and pressure, which effects the quality of printing products. Convex plastic overlay of the site layout should have as much as possible distance, so that overlay layout left some gaps around the edges or the edge of appropriate expansion of light-colored pages (to page edges can be laminated overlay cover live), this minor overprint inaccurate not easy to detect the naked eye.
2, do make-up Technical Control The site layout has overprint fight should be near the seams and pull rules (side rules) Department, in order to avoid stretching the paper the changes are not allowed to produce the phenomenon of overlay. In addition, the page "river and" (every other core) Forum chromatography or larger layout, not fight for the overlay in two separate processes.
3, attention to rational use of offset printing Plate
PS version A thin plate, install the drum surface after the package is relatively small angle of the Indian version of the elongation rate is also smaller, and it can be compared with the roller to maintain close contact with convex rubber products help to improve overlay accuracy, Therefore, the offset printing process should be selected for printing PS version.

4, pay attention to the good care of the bottom plate technology control
Small size of packaging is often used on or off the round four-level structure of letterpress printing press for printing, the brochure printing plate material properties to the end of care, the brochure printing pressure and ink quality overprint precision effects are more large effect. The end of the traditional wooden tray, less solid material, Founder Degree, smoothness and stability than less, prone to deformation from the bow and the printing quality is difficult to guarantee. Therefore, Toppan Printing should be firm, smooth, Founder and good stability of magnetic aluminum or cast iron and other metal materials Edition sets the bottom tray, this is the set of standards and improve product quality based ink.

5, pay attention to good technique off the printing pressure control
Print uniform but moderate pressure should be adjusted, the pressure is too large print runs is easy to tensile deformation, causing overprint not allowed, so the pressure required letterpress printing process mus