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Print Solutions
Blazing a trail with Komori H-UV
Thursday, 27th November 2014

Pietermaritzburg’s oldest printing firm, City Printing Works (CPW), is set to deliver up-to-the-minute colour printing and tailor-made packaging, thanks to the recent installation of a ground-breaking Komori Lithrone LS 429 H-UV four-colour lithographic printing press – the first of its kind in Africa.

‘With our existing 14-year-old four-colour press working round the clock we realised that a second lithographic press was needed to improve efficiencies,’ comments sales director, Mark Backhouse. ‘However, we wanted something special that could take the business to the next level and, while visiting drupa 2012, we made contact with Kemtek Group MD, Gavin van Rensburg, who introduced us to the H-UV technology and its exciting capabilities,’ adds Mark. ‘What really appealed to was its versatility. Besides exceptional print quality and speed, it prints on metallised surfaces and synthetic substrates such as polypropylene and PVC and, with the “instant curing” process, it can turn jobs around quickly without the risk of inks running or bleeding.’

Green innovation
Compared to traditional curing using InfraRed (IR) dryers or UV dryers, Komori H-UV uses a special single quartz UV lamp, developed by Baldwin Technology, to cure highly sensitive UV inks, resulting in an instant dry requiring no extra sealing or varnishing.
The H-UV lamp, which can be located at the end of the press, cures up to 400% ink coverage plus coating at maximum press speed and, thanks to its low heat output, delivers printed sheets immediately from the press at only ten degrees warmer than ambient air temperature.
According to Komori, CO2 emissions from an H-UV lamp are approximately 25% that of a conventional curing system, which significantly reduces press running costs and the need for replacement bulbs. The lamp doesn’t discharge ozone, contributing to a healthy working environment, plus it has a built-in Active Power Control that reduces energy while boosting curing power.

In terms of print standards, Komori has developed, in collaboration with Huber Group, Germany, specialised H-UV sensitive inks – NewV set KHS and NewV poly KHS – that combine exceptional print quality with maximum curing capability, irrespective of the press running speed, or indeed the substrate. The process eliminates any need for spray powder so, apart from the obvious environmental benefits, the printed sheet surface is smooth and the ink has strong reflective qualities and a bright appearance. Without powder transfer to the blankets, reverse-side printing is also of the highest standard. There’s also no ‘dry-back’, as with oil-based inks, so H-UV colour remains true over time. Even on uncoated and matt papers, colour stands strong. This gives printers the confidence to offer various tactile materials with a unique look and feel.

Positive future
‘Komori H-UV ticks all the right boxes, especially for print-on-demand (POD) general commercial printing where quick turnaround is critical, plus added-value and full-colour brand packaging,’ adds Mark.
CPW was supported throughout the installation and commissioning process by a highly-qualified local Kemtek team, with the assistance of Komori and Baldwin Technology specialists from the UK. ‘We’re satisfied that we’ve chosen the right technology partners to take the business to new heights,’ remarks CPW financial director, Robin Barnes. ‘The Kemtek and Komori technicians conducted comprehensive in-house training and are assisting us on-going to ensure that we have the right skill set to succeed. We’re confident that Komori H-UV is going to significantly enhance our business, improving overall production efficiencies and extending our existing product portfolio. Creating sustainable growth and ensuring the longevity of our business is the ultimate goal,’ sums up Robin.

About Kemtek Print Solutions

Kemtek Print Solutions is a comprehensive supplier of raw materials and equipment to the printing industry in Southern Africa. Its key distributions are Fujifilm SA, Flint Photopolymer plates, Komori presses, HP Indigo digital presses and materials, Screen workflow and computer-to-plate systems, including software and hardware for flexographic plates, Duplo finishing systems, Durst Industrial Inkjet Printers, Aristo Cutting Tables as well as Scodix digital embossing presses and materials.



Ready to go! Colin Maher (production director), Craig Backhouse (director), Mark Backhouse (sales director) and Robin Barnes (financial director) are delighted to claim an African first with their all-new Komori Lithrone LS 429 H-UV four-colour litho



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