The flexographic printing technology uses a flexible relief plate to transfer inks from a cylinder to a substrate. The flexographic print response is controlled by the highlight gain and minimum printable dot. The minimum printable dot is accomplished by using Mindot bump and cutoff curves. This activity is to control the response of a flexographic plate by using Mindot bump curves.
Goal Create a print transfer curve to control the response of a Kodak Flexcel NX plate.
Task 1: Created a print transfer curve for Kodak Flexcel NX plate
In ColorFlow, click the Print Curves tab.
In the Transfer Curves section, click the Add button .
In the Name box, enter XX Flexcel transfer curve (where xx= your initials).
In the Device Conditions section, choose Flexographic Press for the Device Type and leave all the other settings as default and click OK.
In the viewer window on the right, click the Transfer Curves icon .
In the Transfer Curve definition dialog box, select the Show in Prinergy check box.
In the Curve Origin section, click Flexcel NX Preset.
In the Midtone Tone Value Increase box, enter 0.
In the Mindot Bump/Cutoff > Process Inks (CMYK) section, enter the following:
In the Tint In box, enter 0.39 (minimum system value)
In the Tint Out box, enter 2 (minimum printable dots on this type of Flexcel plate)
Leave the Highlight Contrast as the default value (70%). This value can be adjusted to give the desired adjustment slope.
Click OK. A print transfer curve for Kodak Flexcel NX plate is generated.
Task 2: Output a page using the print transfer curve in Prinergy
In Prinergy, create a new job, and name it as XX Flexcel NX plate (where XX = your initials).