Optimisation of offset and flexo UV/UV LED printing process for labels
In the competitive world of label printing, efficiency and quality are key. Every detail counts so that the final result meets the customer's expectations and adds value to the product. That's why today we want to talk to you about something fundamental: the optimisation of the offset and flexo UV/UV LED printing process, two technologies that have revolutionised the production of high quality labels, especially in sectors such as food, cosmetics and pharmaceuticals.
At AnagrafWe work closely with printers and converters to ensure that our customers the performance and quality of your processes are at their best. Here are some tips on how to achieve this.
Why go for UV/UV LED technology?
In both offset and flexo printing, the use of UV and UV LED inks has brought with it a number of advantages that justify its choice:
Instant curing: UV/UV LED inks dry instantly, eliminating waiting times and increasing production speed.
Greater colour stability: By curing immediately, shade variations that can occur with other types of drying are avoided.
Versatility in supports: They are ideal for printing on non-absorbent materials such as plastic films, metal labels or coated papers.
Sustainability: LED curing reduces energy consumption and eliminates ozone emissions, offering a more environmentally friendly process.
However, in order for everything to run like a Swiss watch, it is key to optimise every stage of the process. Let's get down to it.
Keys to optimise UV/UV LED offset printing
In offsetting, balance is essential. Here are some tips to improve performance and quality of work:
1. Choice of high quality UV/UV LED Inks
Not all inks are the same. At Anagraf we distribute T&K TOKA, a leader in UV and UV LED inks. These inks are formulated to offer high colour strength, excellent adhesion and low odour, which is key for applications such as food labels.
2. Humidification Control
Although the UV process minimises some of the problems typical of conventional offset, it is essential to maintain the water/ink balance. Too much water can lead to emulsions and loss of definition.
3. UV Specific Sheets and Rubbers
The use of plates and rubbers specifically designed for UV printing ensures accurate ink transfer and prevents premature deterioration of consumables.
4. Power of UV/UV LED lamps
Periodically check the power of the lamps. Insufficient curing causes adhesion and overprinting problems, while excessive power can degrade the substrate or inks.
How to improve your process with Anagraf
At Anagraf, we are official distributors of T&K TOKA and Foilco in Spain and Portugal.
If you want to take your label printing to the next level, contact us. We help you choose the best UV/UV LED inks and advise you on how to get the most out of your offset and flexo equipment.
