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Operating Manual

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OPERATING MANUAL<br />

dE GretagMacbeth (de GMB) is a quality criterion for using ink leftovers. Among other things, it<br />

takes into account the fact that it is very difficult to achieve a pure ink with a dirty ink leftover.<br />

1. Click in the Sorted according to field and then on the required option in the selection list.<br />

If you click on the Search button, the Search criteria window appears. This enables you to reduce<br />

the number of recipes displayed on the basis of various criteria.<br />

13.3 Processing an existing recipe<br />

You can correct an existing recipe (e.g. you can modify the designation or the additional<br />

description).<br />

1. Click on the recipe you want to process in the left area of the Database: Recipes window.<br />

2. Click on Modify. The Recipe Entry window appears.<br />

3. Click on the Designation or Additional description field in the Recipe entry window<br />

and make the desired entries.<br />

For changes in the Ink quantity and Ink film thickness values, it is best to load the recipe and<br />

then modify it ( see Section 5.5 «Modifying a recipe»). This gives you the chance to observe<br />

the effect of any changes (difference against the target color).<br />

13.4 Batch processing<br />

If an ink manufacturer has to replace a pigment he has been using hitherto with a new one, then<br />

all existing recipes produced using the assortment in question and containing the color in question<br />

will have to be recalculated using the substitute pigment.<br />

Batch processing means that this process of replacement and recalculation, which would otherwise<br />

have to be carried out manually, can be automated and therefore greatly accelerated.<br />

In a case like this, the ink manufacturer will create colorant calibrations for the color using the<br />

new pigment, enter these into the relevant assortment and then make the modified assortment<br />

available to those of his customers working with Ink Formulation.<br />

In an expanded search window, it is possible to filter out from all the saved recipes those containing<br />

the pigment which needs replacing, and to display them in a list.<br />

In a second stage, you can specify in detail the conditions under which the recalculation of these<br />

recipes should take place. For example, the recipes can be recalculated and optimized while<br />

leaving the other colors in the recipe untouched. This is especially useful if the color difference<br />

between the old and new pigments is only slight.<br />

92<br />

13 • Managing recipes

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