OneBoxVision Blog

LAB Color Measurement for Printing

Just released online color monitoring for printing applications in ImageFlow. Now an operator can define multiple points on a job and measure the LAB value on each and every repeat.

Set up multiple points

Once a job is in specification, simply point and click to learn. Assign a name to the point. The area to be measured is adjustable.

Wizard

Monitor and trend during the job

The system will trend every repeat so that you can see in the machine direction the variance in the color quality of the points being monitored. This is plotted using DeltaE as a basis. Beneath the trend the value of each point is shown in a color gamut display.

Main Screen

Early warning of color drift

The system will warn the operator of color drift. Green is OK, Yellow a warning and Red is out of specification. The thresholds can be stored based on the contract requirements per print job.

Main Screen(Warning) crop

Record for process control

All measurements are recorded so as to enable a certificate of compliance and also for use as a process control parameter for manufacturing optimization.

Measurement Table-1

Come meet us at PackExpo 2018

We will be exhibiting with our partner Acquire Automation  at PackExpo in Chicago at Upper lakeside center E-7038. We will also be demonstrating the following capabilities :

  • Print inspection for packaging and  labels
  • Variable data inspection and serialization
  • Pouch, seam and perforation verification
  • Measurement of opacity and color for films and packaging

Opt in and keep in touch

Topics: Print inspection systems