Operating Manual

10.2.1 Measuring ink leftovers or loading them from ColorNet
1. Click on Measure in the Colorant Selection window. The Measure current ink leftover window
appears.
2. Define the ink leftover by measuring with the spectrophotometer or by loading from ColorNet.
Proceed as for the definition of a target color (
see Section 5.2.3 «Defining a target color»).
If the measuring mode in the current assortment is set to On white and black Ink Formulation
will ask for a measurement on white and black. If measurement on black is omitted, the program
assumes that it is dealing with a transparent color.
The Set up colorant window now appears.
3. Enter a designation and the available quantity. Enter the remaining data (price, dye strength,
specific gravity, viscosity, etc.) according to your requirements.
If the ink leftover was printed with a higher film thickness than the inks of the assortment, the
dye strength of the ink leftover should be increased. The viscosity of the ink leftover (viscosity
module only) is made the same as the viscosity of the assortment, provided no data were
entered.
4. Click on OK. In the Colorant Selection window, the designation of the ink leftover is marked
with a $ - sign in the Selected colorants field.
10.2.2 Loading ink leftovers from the database
1. Click on Database in the Colorant Selection window. The recipe list displayed in the Database:
Recipes window is automatically ordered in accordance with the dE GretagMacbeth color
distance
to the current target color.
dE GretagMacbeth is a quality criterion for using ink leftovers. Among other things, it takes into account
the fact that it is very difficult to achieve a pure ink with a dirty ink leftover.
The recipe list displays all recipes of the current assortment used for formulation.
If you want to enter other criteria, you must click on Search and make the relevant entries
in the Search criteria window.
10 • Using ink leftovers 77