ColorCert 2.7商品说明书

ColorCert 2.7 General Improvements

Version History

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October 12

th

2016 - Version 1.0

March 31

st

2017 - Version 1.1 (Updated support links)

Scope

This document describes the general improvements in Profiles, Rules and Pressroom Tools for ColorCert

Version 2.7.

Solution Summary

Improvements in ColorCert Profiles

Until ColorCert Version 2.6.7 a ColorCert Profile always required a Substrate and at least one Primary target.

Now you can create Profiles with SpotColors only and Profiles with SpotColors and a Substrate.

The separation settings workflow has also been improved. It now uses two different icons to indicate if a

SpotColor is a real ink or a build color and if separation settings for the build color are available.

Improvements in ColorCert Rules

You can now check whiteness and opacity for substrate measurements. The substrate measurement can be

excluded from scoring if a Substrate target is defined in the Profile, but you don’t want to be scored against

that value.

You can also define ΔE methods with custom constants.

Improvements in ColorCert Pressroom Tools

The visualization of the measurements results in the Pressroom Tools has been improved. It includes red

and green dots to indicate pass/fail status and a larger viewer for the Lab graph.

The Numbers tab contains new strength calculation methods for colors, whiteness and opacity for

substrates.

The measurement workflow for backing material has been improved.

Requirements

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ColorCert 2.7 (Manager, to set up the new improvements in Rules and Profiles)

ColorCert 2.7 (Pressroom Client or Pressroom Essentials Client, to use the new improvements in jobs)

Useful samples and information from the ColorCert support website

/service-support/product-support/formulation-and-qc-software/colorcert-desktop-tools

 Color Basics for Pressroom (Rev. B) (physical sample sheet in the eXact box)

 ColorCert ColorBasics Sample Data

 ColorCert Startup and Configuration Guide

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Improvements in ColorCert Profiles

Removed Requirements of Substrate and Primaries

The following Profile variations have been designed for packaging workflows using only solid SpotColors.

These workflows usually do not require or allow substrate measurements.

 Profiles with SpotColors only (no Substrate or Primary required)

 Profiles with SpotColors and Substrate (no Primary required)

Separation Settings

SpotColors in the ColorCert Profile can be either a real printed ink or a build color separated from the

Primaries. The icon for that has been improved:

 Real Ink

 Build

With a click on the Build & Separated icon, the Build Finder Window opens:

 Build & Separated

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Select Mark as Build and separate.

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SpotColor shows the difference between the target SpotColor and the predicted build color based

on the separation settings.

Separation Settings can be adjusted manually.

If an icc profile is used for the Profile you can click on Auto Separate and the separation settings are

adjusted automatically based on the content of the icc profile.

Click on Minimize ∆E to minimize ∆E using the following parameters:

o Min Coverage: minimum ink coverage required (in percent)

o Max Channels: maximum amount of channels to be used for the build color

o ∆E Formula: Select the formula for the calculation.

Click Lab: Build Color -> Target to use the predicted build color values as the new SpotColor

target.

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Some important correlations to know:

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To measure Dot Gain for a specific color, this color must be added under Primaries.

A Substrate target is required if your Profile contains Primaries.

A Profile without Substrate cannot be combined with Rules that require substrate measurement.

Primaries are required if your Profile uses SpotColors defined as build colors.

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Improvements in ColorCert Rules

More Substrate Checks

In ColorCert Rules in Settings 1 you now have the following check values under Substrate:

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Select Check Substrate Color if you want to check the ∆E value of the substrate in the Pressroom

Tools. Define Tolerance and ∆E formula as usual.

Select Check Substrate Whiteness if you want to check the CIE Whiteness of the substrate in the

Pressroom Tools. Define Tolerance as a percentage value.

Select Check Substrate Opacity if you want to check the Opacity of the substrate in the Pressroom

Tools. Define Target and Tolerance as a percentage value.

All of the above require a substrate measurement. The target values are defined in the Substrate target in

the Profile. For Opacity an additional single measurement of the substrate over black is required after all

other measurements in the Pressroom Tools.

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Select Exclude from Scoring if you do not want to calculate one of the above values into the job

score.

Select Substrate is obligatory Requirement if you require a Substrate target in the Profile.

Otherwise the availability of a Substrate target in the Profile determines if the above values are

checked in the Pressroom Tools.

Rules and Profile Combinations

All measurement options are now passive.

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If you select Check Substrate Color in the Rules, but the Profile does not contain a Substrate

target, you are not asked to measure the substrate in the Pressroom Tools.

If you do not select Check Primaries in the Rules, but the Profile contains a Primary it will not be

measured in the Pressroom Tools.

The above scenarios are true in all cases with the exception of Substrate is obligatory. If you

selected this in the Rules you are not able to combine it with Profiles that do not contain a Substrate

target.

If a Profile does not contain a Substrate target:

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Density White Base calculation reverts to Absolute no matter what is defined in Rules.

BestMatch is deactivated.

You are not asked to measure MinDot, Dot Gain or Undertones.

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Cannot be combined

* Substrate is measured but results are not shown. The substrate measurement is used for MinDot, Dot

Gain, Undertones and Density calculations.

** Density White Base calculation defaults to White Base = Absolute because the substrate is not

measured.

Custom ∆E Constants

Wherever you are able to select the ∆E method in the ColorCert Rules you can now define custom ∆E

formula constants for ∆E

CMC

, ∆E

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and ∆E

2000

.

The constants affect the ∆E calculation. For example ∆E

2000

has constants for the Lightness (KL), Chroma

(KC) and Hue (KH), depending on the ratio of these constants the tolerance levels of these parameters are

higher or lower.

Examples

∆E2000 (1:1:1)

∆E2000 (2:1:1)

∆E2000 (1:2:1)

∆E2000 (1:1:2)

∆E2000 (0.5:1:1)

∆E2000 (1:0.5:1)

∆E2000 (1:1:0.5)

All constants have the same tolerance. This is the usual ∆E

2000

formula

The lightness tolerance is higher than chroma and hue. Color differences in

lightness are treated with less importance.

The chroma tolerance is higher than lightness and hue.

Color differences in chroma are treated with less importance.

The hue tolerance is higher than lightness and chroma.

Color differences in hue are treated with less importance.

The lightness tolerance is lower than chroma and hue.

Color differences in lightness are treated with more importance.

The chroma tolerance is lower than lightness and hue.

Color differences in chroma are treated with more importance.

The hue tolerance is lower than lightness and chroma.

Color differences in hue are treated with more importance.

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Improvements in the Pressroom Tools

Opacity Measurement

Open your job as usual and click Measure Tool. If the job requires the opacity of the substrate to be

measured (Opacity check selected in the Rules and Substrate target available in the Profile) you are asked

to measure the patches of your strip as usual. Afterwards you are asked to measure your substrate over a

black backing material.

Backing Material Measurement

If the job requires a measurement of the backing material (Backing Material defined as target and tolerance

in the Rules) you are asked to measure your backing material after your first measurements with the

Measure Tool. You only have to measure it once per job but it can be canceled and activated with a button in

the Summary tab at any time.

If the measurement is out of tolerance you can repeat the measurement up to three times:

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If you click Cancel or Use Anyway, the Summary tab will show that the last backing measurement is not

compliant. Click Measure to start the measurement again.

If the measurement is in tolerance the following window appears for a few seconds. The result is accepted

automatically.

The Summary tab now shows that the last backing measurement is compliant.

If you want to check the backing material in this job again, go to Tools -> Check Backing and the

Measurement window will open again.

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Visual improvements

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Instead of the words Passed or Failed the window displays red and green dots behind each value.

For Primaries and SpotColors the Numbers tab shows the Strength calculation. Please refer to the

ColorCert BestMatch documentation for more information about the strength calculation.

For Substrate you can see the ∆E value, the ∆Whiteness and the ∆Opacity in one line.

NOTE: Substrate values that are not set to be excluded from scoring are calculated together as one

substrate score.

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If one of the required substrate values fails, the score is limited to 49 (just failed) even if the average

of all measurements would be higher (same logic like the Dot Gain score).

If one of these values is excluded from scoring, the ∆ value is not displayed in the Substrate line, but

the detailed values are displayed in the Numbers tab for analysis:

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Large Viewer

Click on the Lab Graph in the Viewer to open a larger viewer of the Lab graph. The larger viewer allows you

to Zoom in and out manually and to Auto Zoom so that the sample is just inside the viewer.

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