How to obtain a good printing registration in flexography?
Printing registration is essential to obtain a quality printing. 3 factors are necessary to obtain a good printing registration. 1.- The press and its tooling 2.- Correct plate mounting 3. Printing registration inspection and control.
It is not enough to have a precise press, in good state, with good tension control, operated by qualified staff; if plates are not perfectly aligned or if registration is not inspected and controlled during printing, any effort or inversion will be in vane.
To obtain a correct plate alignment, it is necessary a plate mounter equipment that allows plate mounting with high precision and repeatability. MDG plate mounter is a useful tool that allows mounting and aligning plates in a precise and fast way. Besides improving registration in press, it has additional benefits such as reducing printing overlap lines thickness, obtaining higher sharpness in color selection and better definition in inverted and elements printed to registration.
On the other side, registration inspection and analysis during printing assures that the printing keeps in registration. inRegister web inspection system is specialized in inspection and analysis of registration. It features an intelligent vision system that eases the analysis, automatically finds the registration mark, measures the registration displacement of each ink individually and notifies the operator in case an ink is out of registration. Registration inspection and analysis is essential, especially in those presses that don't have an automatic registration control.