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LED UV curing technology is energy efficient, environmentally friendly, and extremely well suited to the production of a huge range of applications. It’s a massive area of R&D focus for Fujifilm and it is, quite rightly, seen as a key “technology of the future.” So far, so uncontroversial.

And yet, none of that means to say that conventional UV curing has – or will – become a “thing of the past”. Despite the obvious cost and environmental advantages of LED technology, there is no reason to believe that it will replace conventional UV altogether. It won’t. In fact, both technologies will continue to play valuable roles in the future of wide format print long into the future, and where conventional UV is the more appropriate solution, we at Fujifilm will continue to offer customers that option. This is something we’ve clearly demonstrated with the launch of the new Acuity Ultra R2 – which is available in either LED UV or conventional UV curing formats.

Pros and cons

LED UV does, of course, use far less energy than its conventional alternative. As LED UV lamps have a significantly lower level of applied voltage, LEDs have a lower radiance than conventional UV lamps. LEDs emit light in the visible part of the spectrum from 400 nm to 700 nm or in the near infrared (700 nm and 2000 nm), so only part of the spectral energy they emit is UV light. Because they use a fraction of the energy of conventional UV lamps, they don’t need to warm up or cool down, so they are immediately ready for use and don’t use energy unless they are operating.

Understanding the relevant regulation

Another common reason cited for the inevitable decline of conventional UV is government regulation. But here, many of the regulations concerning conventional UV are widely misunderstood. The European Union’s Restriction on Hazardous Substances II (RoHS II) regulation bans the use of heavy metals, including lead, mercury and cadmium. As a result, domestic light bulbs that use conventional UV can no longer be purchased, having been replaced by LED UV. For this reason, many assume that conventional UV for business use is on a similar path to regulatory oblivion.

Counting costs

The operating costs of LED UV are certainly lower than the costs involved with a conventional UV machine, where increased energy and consumables usage needs to be factored in. But if the extra speed and increased adhesion and block resistance of conventional UV allows a print business to produce more work, the additional business can more than cover all these costs, as well as funding responsible waste management systems to minimise environmental impact.

Heat and speed

Another common belief is that conventional UV cannot be used on heat-sensitive materials, but Fujifilm’s Acuity Ultra R2, for example, features a unique water-cooled vacuum table that allows rapid UV curing on a huge range of thin, heat-sensitive materials. The main benefit of conventional UV that cannot be matched by LED UV is the speed at which it is able to print. Depending on the user, this one benefit can outweigh many of the negatives, meaning that it’s often the option that makes the most sense for many businesses. As conventional UV undoubtedly dominates the market in terms of productivity, it remains the obvious option for printers producing high volumes with rapid turnaround times.

The choice is yours

LED UV, of course, has an extremely valuable role to play in the future of wide format print– and we’re very proud at Fujifilm of our extensive range of LED UV curing printers. But it is not a complete replacement for conventional UV. There is still very much a need for both types of technology, depending on the customer’s requirements. The two exist in tandem and will continue to do so. Conventional UV is best for high production, fast-turnaround print, while LED UV offers a multitude of environmental, cost, and energy saving benefits when speed is not as crucial. Until LED can match conventional UV’s performance, specifically its speed and depth of cure, it is unlikely to be a wholesale replacement for conventional UV.

Ultimately, it’s up to the customer to decide on the most appropriate solution for their business, and we will continue to offer them that choice.

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Following the announcement that Fujifilm’s new wide format printers, the Acuity Prime and Acuity Ultra R2, have won Red Dot Awards for product design, Fujifilm’s Kevin Jenner asks: What does good product design really mean? Beyond a stylish exterior, he argues, it’s about usability, reliability and value. Why would a tradesman buy a Mercedes Sprinter van and fill it with Makita tools? There are cheaper vans and there are cheaper tools, but in those brands he’s buying into a perception of quality and reliability that is going to enhance the work that he does and boost his business.

The cynic might say that brand perception is down to good marketing – and they may well be partly right – but brands that stand the test of time, brands that people have confidence in and keep returning to, time and again, have a lot more than clever marketing behind them. They have outstanding product design.

If a CapEx investment can expand the customer offering, boost productivity, cut waste, save time and reduce hassle – that’s good design on the part of the manufacturer, and a solid investment for the customer. But how do we get there? How do we create extraordinary design that can transform a business by making work more efficient, more enjoyable, more productive and ultimately boost ROI?

“The broader one’s understanding of the human experience, the better design we will have.” That’s Steve Jobs again. Good design starts with understanding. By seeking to understand everything, from the long-term business goals, to the day-to-day frustrations of the customers we serve – we give ourselves the best starting point for good product design.

We looked at how improved product design could lead to improved usability, to enhanced performance and to better ROI. I’m going to quote Steve Jobs once more (last time, I promise!) as I begin to wrap this up.

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The Fujifilm name has been closely associated with UV inkjet technology since 2005 – the year in which Fujifilm acquired the pioneering UV inks and inkjet company, Sericol, based in the seaside town of Broadstairs in Kent. Founded in 1950, Sericol had long been a screen inks pioneer and market leader. Then, in the 1970s, it launched the world’s first instant curing UV screen inks and built on this experience to commercialise the first UV digital inkjet systems and inks in the world in 1999. The immediate and rapid growth in this new sector resulted in Sericol being presented with a Queens Award for Enterprise in 2004 for its role in developing and commercialising these new UV inkjet systems.

Market maturity

The early years of wide format UV inkjet development were largely defined by advances in technology that delivered rapid and continual increases in print speed and quality. In 2018, however, Fujifilm recognised that the market had reached an advanced degree of maturity, and a point at which a very high level of quality and productivity was assumed. New product launches were tending to offer only very marginal improvements in print speed and quality. In addition, Fujifilm also became aware that there was an opportunity to use these evolving technologies to drive improvements in wide format print ROI.

Back to first principles

In terms of printing hardware and systems, Fujifilm has always been a technology company first and foremost, rather than a manufacturer, working with a range of OEM partners and other specialists to provide the best possible platforms for its inkjet technology. The Acuity range already has a deserved reputation for quality and reliability, but for this next chapter in the Acuity story, Fujifilm wanted a new level of design influence and control in order to take full advantage of what was possible, to create something that offered far more than mere marginal improvements.

Bringing it all together

Four design criteria emerged from the blueprint that informed all design choices and helped to identify the right manufacturers and suppliers to work with, as well as the OEM partners to help to bring it all together. These were: quality, value, performance and ease of use. In addition, every component part selected was chosen with these four criteria in mind, from the printheads to the user interface, lamps, static control and vacuum solutions. In all cases, Fujifilm made choices based on answering questions like: “does it do what it needs to do?” or “could it be done better?” Nothing was left unchanged that could be improved.