Overview
G7 is a process control method from proof to proof. It combines the traditional method of measuring TVI of each color by determining the gray balance and NPDC curve at the same time, stably and efficiently matching the color visual effects of multiple devices.
The name "G7" comes from the initial letter "G" of gray balance and 7 ISO colors (CMYK / RGB).
Note: The G7 process can help you to obtain an appropriate gray balance, thereby making your device's color gamut reach a certain color tolerance. G7 is not a standard, but using the G7 process can help you achieve international standards such as ISO.
Plate control
G7 recommends using a video-based dot measuring instrument for plate measurement.
X-Rite products:
iCPlate2 X and iCPlate2 XT
PlateScope
main feature:
Helps control the quality of printing plates (according to G7 requirements)
Advantage:
Integrate the G7 process into the customer's workflow, and the operation is simple; help the customer maintain the appropriate color gamut tolerance value required by the G7 when the equipment in the printing shop is running.
Advantages of iCPlate2 and PlateScope:
High precision and repeatability;
High screen density range, including extremely high light and extremely dark tone. [next]
Printing control
G7 recommends users to use spectrophotometer or spectrodensitometer to measure printed matter.
X-Rite products:
IntelliTrax (automatic scanning system)
528, 530, SpectroEye and 939 (portable spectrodensitometer)
IntelliTrax 1.5
main feature:
Measure according to the target determined by G7;
Illustrate the degree of compliance with G7 with a chart;
Identify problem inks and recommend which inks to replace to achieve the G7 goal, reducing the problem-solving requirements of the press operator.
Allow measurement of P2P targets;
The output can be imported into the measurement file G7 report of G7 IDEALink Curve software.
Advantage:
Integrate the G7 process into the customer's workflow, and easy to operate;
Provide customers with a fully automatic software that tracks and uses the G7 process;
Help customers to maintain the appropriate color gamut tolerance value required by G7 when the equipment in the printing shop is running.
528, 530, SpectroEye and 939 portable spectrodensitometers
main feature:
Measured according to the pure color tone and gray balance determined by G7 (free data sheets can be downloaded from the 528 and 530 series instruments);
Display dE and / or other parameters, indicating the degree of compliance with G7;
Advantage:
Integrate the G7 process into the customer's workflow, and easy to operate;
Provide customers with a fully automatic software that tracks and uses the G7 process;
Help customers to maintain the appropriate color gamut tolerance value required by G7 when the equipment in the printing shop is running.
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