When defining a device condition, you can add a spot ink and select a curve channel for the ink. You can also add spot inks to an existing device condition.
Note: The spot ink named "Default" is the default curve channel that is used for undeclared spot inks.- In the Device Condition Properties dialog box, in the Spot Inks section, click the Add button
. - Double-click the Color column and choose a suitable color (for visual recognition only).
- Click the Name column and enter the name of the spot ink, such as
PANTONE 236 C
.
It's important that you enter the spot ink name exactly as its separation is named in the design file, or Prinergy will not apply the correct channel. - Do one of the following:
- Click the Curve column and choose a curve channel to be used for the spot ink
- To create a custom curve channel, select Custom. The custom curve is identical to the curve channel previously selected for the spot ink and can be adjusted without affecting other curve channels
- Click OK. A curve channel is added for the spot ink.
Measure the tonal response of the spot ink using a tint ramp chart. If you don't measure the spot ink, a linear curve is generated and you can adjust it following instructions in Step 7.
Define the target response for the spot ink.
To Define the Spot Ink Target
- Perform one of these actions:
- For spot inks in a PCO, click the Simulation icon
. - For spot inks in an SCO, click the Conversion icon
. - For spot inks in a print calibration curve, click the Calibration icon
.
- Click the Spot Inks tab.
- Select the target as follows:
- If you have measured the SCTV response of spot inks, select Target value Linear (selected automatically). This sets the Curves Method to Linear SCTV.
- To calibrate spot inks to an EDA or TVI target response, select any Target value other than Linear or None. This sets the curve method to Tonal Match.
- To generate linear curves that can be manually adjusted, select Target value None. This sets the curve method to Manual Adjustments Only.
- Click OK.
Note: For a spot ink whose response has not been measured, the following settings always apply:
- Target: None
- Curves Method: Manual Adjustments Only
You can view the Curves Method for each spot ink by clicking Details in the Simulation, Conversion or Calibration definition dialog.