Custom Black Target
Overview
Some applications require a customized black composition to achieve the desired visual black appearance on the final substrate. To simplify this process, the Profile Variant should include a dedicated workflow that allows users to print, evaluate, and apply a custom black without leaving the profiling environment.
Workflow
1. Create the Profile
Complete the profiling process as usual until the profile has been successfully generated. Once finished, edit the desired Profile Variant.
2. Print the Custom Black Target
Activate option "Custom Black Point" and Select "Print Custom Black Target" option, available inside the Profile Variant. This will generate a target containing multiple composite black combinations designed for visual evaluation.
3. Print
Print the generated target using the selected profile variant and process it through the normal workflow. The target should be produced using the same media and production conditions that will be used for final jobs. The job will send to the RIP.
4. Evaluate the Results
After printing, compare all black patches and determine which composite black provides the best visual result in terms of density, neutrality, and overall appearance for the specific application.
Composite Black Patches
Each patch must contain:
- Center Patch Pure K = 100% (constant)
- Backgroud (Edges) = CMY values generated using the following increments:
- 30%
- 60%
- 90
5. Select the Preferred Black
Choose the preferred patch from the printed target. You must manually enter the selected values after the evaluation in the "Custom Black Point" section. The "Optimize" option should not be selected, as this option will attempt to compose the black combination while maintaining the color proportions.
6. Apply the Custom Black
Apply the selected CMYK combination as the Custom Black for the current Profile Variant (Option OK). The variant should immediately use these values for future output.