Clays maximizes digital print uptime with Contiweb Non-Stop Unwinder

Equipment should increase uptime by 10%

Clays estimates over 800 hours of uptime saved each year

Contiweb, specialists in advanced technologies for web drying, handling and processing, today announces that Clays, a market-leading book production specialist, has installed a Contiweb CD-N Non-Stop Unwinder . The system is expected to save more than 800 hours of uptime per year on the HP PageWide Web Press T260 Mono line at Clay’s Bungay, Suffolk in the UK.

“We already have a CD-N unwinder on one of our larger HP presses, so we’ve seen the benefits the system can bring, especially in terms of uptime,” says Andrew Lawrence, Continuous Improvement Manager , technical and project at Clays. “The press operates 24/7 and around 10% of that time is spent changing paper rolls. With zero-speed splicing, we don’t need to stop the printer to change paper, so we can recover most of that time. We will save approximately 840 hours per year.

Clays prints 150 million books each year, primarily for professional publishers, but also for independent publishers and small start-ups. As the book market continues to thrive, this number will only increase. Production capacity, speed and reliability are therefore crucial to Clay’s business.

Clays purchased its first CD-N unwinder for a new HP PageWide T490HD Web Press in 2018. In view of the productivity gains and reduced waste achieved, the decision was made to also retrofit an HP PageWide Web Press line Existing T260 Mono 26” with the Contiweb CD-N Unwind press line, which was integrated in October last year. “Although the T260 is a smaller press, productivity is still key,” adds Lawrence.

The Contiweb CD-N unwinder can splice a new roll of paper to an expired roll without having to stop printing. Capable of splicing papers of varying web widths, coatings and weights, the system is very useful for short, fast-moving jobs. The unwinder can also send a signal to the press when a splice arrives – even if it recognizes a splice made by the paper mill – so the press can lift the printheads, reducing waste and eliminating the complication of reprinting of signatures rendered unusable by printing on a splice.

“We are thrilled to announce this milestone installation with Clays,” said Robert Bosman, Director of Sales at Contiweb. “This confirms Contiweb’s position not only as a supplier of web offset printing equipment, but also digital inkjet, an important development for the company. I’m also thrilled to see Clays, such a big player in book production, reaping the benefits of Contiweb technology.

Contiweb has also launched a calculator for printers wishing to assess the time savings they could achieve with the non-stop Contiweb CD-N unwinder on their Canon, HP, Kodak, Ricoh, Screen and Xerox presses, available on the Contiweb site .