How SpotOn! Flexo Helps Control Spot Colors
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SpotOn! Flexo uses spectral data to provide optimal density information, allowing the operator to run a spot color to match a reference color. This software compares the spectral data of a color measured on a press pull (using a spectrophotometer) to the spectral data of the reference color. A quick calculation gives the press operator the optimal density to obtain the closest (lowest Delta E, or dE) match to the reference color.
The SpotOn! Flexo software’s user interface uses a simple color-coded icon to indicate the density corrections. After each color measurement, a color-coded icon is displayed:
- Green = optimal ink density and color match
- Orange = acceptable color match that could be improved by either increasing or decreasing ink density
- Red = failed color match that cannot be achieved without additional ink formulation
The software also provides a trending chart of the density and the corresponding Delta E versus the reference color.
Reference colors can be loaded into the software in one of three ways:
- Ink formulations files such as MIF or CxF files can be uploaded
- Colors can be measured into the software using a spectrophotometer
- Colors can be input using CIELAB coordinates
SpotOn! Flexo supports all of the popular Delta E equations: dE1976, dE1994, dE2000, dECMC. The software allows the user to set the dE tolerances for a specific job. The user sets both warning and fail tolerances. For example, a customer may require all spot colors to be within a range 3 dE to be accepted, and will be considered failing at 5 dE.
Spoton! Flexo supported measurement instruments:
- Konica-Minolta FD-7 (Windows Only)
- Techkon SpectroDens (Windows only)
- X-Rite i1 Pro
- X-Rite 530
- X-Rite 939
- X-Rite SpectroEye
- X-Rite SP62-64