With Prinergy 4.0 and Prinergy Evo 4.0 and later, you can apply two separate curves: the plate curve and the print curve (calibration). For flexo , use the plate curve for the bump curve, and use the print curve for the TRC.
Plate and print calibration curves
You create the TRC using a linear current curve and an adjusted target curve.
Creating a tone reproduction curve (Prinergy 4.0 or later)
Once you have determined the bump and tone reproduction values and have created and properly specified the curves in Prinergy or Prinergy Evo, you are ready for full plate production with your workflow system.
The most important point to remember when creating the TRC for use with a bump curve is to anchor the 1% value. This prevents the TRC from affecting the bump curve. You anchor the 1% by activating the 1% node and typing 1% as the value. You should also place another node at 2% to lock the slope of the curve below the 1% value. Again, you activate the 2% node and type 2% as the value for this node.
Anchoring the 1% value
Anchoring the 2% value
In the final curve, which will have adjustment points placed to achieve the target press gain, you can adjust the 2% value slightly to smooth out the final TRC.
Adjusting the 2% value to smooth the final TRC