Machine Vision & Web Inspection
Tackling today’s trends in print inspection and quality control
Guy Yogev is director of marketing for AVT, one of the global leaders in print process control, quality assurance and press control for the packaging, labels, and commercial print industries. Here he exclusively outlines how the printing industry is changing and what print inspection and process control systems have to do to keep up with changing demands and requirements. “The types of inspection and quality assurance
solutions available on the market are as broad as the various methods of printing, if not broader,” Yogev begins. “However, far too many inspection processes are relying more on humans – and let’s face it, humans are inherently error-prone, than advisable or necessary. Inspection is often seen as a last step rather than one that adds true value to a production line and supply chain. “We are a provider to whom printers and
packaging providers turn when they require enhanced, often 100 per cent inspection and quality control. AVT is on the cutting edge of inspection and quality assurance technology. One recently introduced solution is Helios Turbo HD, which offers, for the first time, high definition resolution inspection along and across the web at full press and rewinder speeds, all without sacrificing superb quality assurance and key applications such as inline barcode verification.”
The company is also one of the leaders in
inspection for the burgeoning digital printing sector. Its Helios D digital press inspection system is an automatic, 100 per cent print inspection solution designed to meet the specific needs of digital printing in the labels and narrow web markets. Based on AVT’s Helios product line, Helios D supports all stages of digital production workflow, including the identification of specific defects like missing nozzles, ink dripping spots, and colour changes as soon as they occur. The result is reduced waste, enhanced production and comprehensive process monitoring.
CHANGES ACROSS THE INDUSTRY Yogev continues: “One prevalent trend is the push toward shorter print runs and the need to change jobs faster and decrease make-ready time. This increases the need to automate setups and shorten the time to ‘good copy’. This means that vision systems are being used to bring presses into register and pressure more quickly, while in- line spectral systems are used to verify colours, helping ensure brand owner satisfaction. “Another trend is the need to convert jobs
faster and with just-in-time delivery. This goal is aided mightily by pushes for new workflow and automation solutions, which enable printers to control the process on press using pre-defined
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setups, and to use the quality information from the cameras on press to control the converting process. This best ensures defect-free material sent to end customers.” Yogev adds that other printers are significantly
enhancing their inspection and quality assurance processes through sophisticated solutions. Those that delay or decline to do so greatly risk losing out on business opportunities in an environment where precision has become an expectation rather than a luxury. Automation, shorter runs and personalisation
are the key elements of the future, he says. “In a few years we will see more digital solutions for packaging, taking more market share, as seen in the label market in the last five to seven years.”
www.avt-inc.com
Features in the March issue of
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pdugmore@datateam.co.uk February 2017
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