Machine Vision and Web Inspection
Esko makes overcoming today’s challenges easier with groundbreaking new AVT Varnish Inspection and defect detection
“W
inspect without slowing or stopping a narrow web run,” said Jan. A signifi cant percentage of labels require varnish for design and protection. Usually this requires stopping the press to pick a label and conducting a manual inspection using a light box. The process can also require the adding of UV additives to the varnish, which are not allowed in many applications, with viewers then using a special UV light source, all of which just serves to further interrupt production.
ith raw material costs at an all-time high and the pressure for all businesses to become more sustainable, we know
that reducing waste while maximising throughput is a top priority for labels and packaging converters,” said Jan De Roeck, Director Industry Relations & Strategic Marketing, Esko. “In the face of mounting challenges for brands and their label and packaging partners, we are continuously working to address the growing business need to streamline processes and better connect people and technologies,” explained Jan. Esko continues to bridge the gap from digital transformation to packaging business success with software and hardware innovations specifi cally developed to make it easier for people and processes to connect, to automate operations and to accelerate business growth through operational improvements.
“Ensuring accuracy on the print run is a clear way to help drive effi ciency, increasing productivity while reducing waste. Inspecting the varnish coat has traditionally been a time-consuming, and therefore costly, process.”
INSPECT AND DETECT
Esko recently launched a new print inspection module that can inspect and detect defects in varnish coatings during a live label print run. The Varnish Inspection module for the AVT Helios 100% inspection system enables label converters to achieve maximum output while reducing waste in their print production process. It delivers unmatched accuracy and crucially requires no UV additives to the varnish, with a single inspection system that off ers broad compatibility. “While conventional systems and the human eye can’t see clear varnish, with this new Varnish Inspection module for our AVT Helios 100% inspection system, operators can now see and
SAVE TIME, REDUCE WASTE
Delivering unmatched accuracy, the precise, detailed inspection ensures varnish coating defects such as misregister, partial and full varnish starvation are detected immediately once the run starts. The AVT Varnish Inspection module automatically inspects for and alerts the operator to varnish starvation. It also checks for and alerts to any misregistration, delivering signifi cant savings on time and waste with huge effi ciency gains.
The Varnish Inspection module includes a new, patented optical module, which adds to the existing inspection system optic head, as well as software including patented algorithms, developed to support
clear coating inspection. A new Varnish PDF separation viewer identifi es the varnish layers.
ADDITIONAL EFFICIENCY WITH AUTOSET Esko further drives effi ciency in inspection with AutoSet, the end-to-end solution that automates print inspection of both fl exo and digitally printed labels from prepress through to on-press and fi nishing. “AutoSet is a way to better integrate inspection with the prepress workfl ow upfront,” explained Jan. “Designed to enhance the overall print environment, AutoSet automates job setup and eliminates setup time and the need for manual intervention. Data is automatically sent from the Esko Automation Engine to the AVT inspection system, where even very short runs can be automatically inspected, resulting in exceptional print quality and process control,” he said. “In all print environments, and especially with digital print and its many short run jobs, setting up the inspection system can be a huge drain on resources in terms of time and material waste,” said Jan. “With AutoSet, we help make inspection an integral part of the workfl ow rather than treating it as a separate, disjointed and additional production step.”
“Less operator time spent on inspecting and resetting frees up time for value added tasks, while the reduction in waste delivers savings on the cost of materials and energy for reruns. The system also enhances the fi nal print quality, with improved surface coverage, delivering a higher quality product which means increased customer satisfaction,” he said.
For more on the AVT Varnish Inspection module, AutoSet and all the latest solutions from Esko, visit
www.esko.com.
30
May 2024
www.convertermag.com
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