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Tuesday, 17 September 2019
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Raw materials & technologies, Technologies, UV/EB Coatings

UV low energy curing inks reduce manufacturing time

Monday, 9 December 2013

UV curing of inks and varnishes is undergoing a change and the low energy UV lamp technology represents an important development for many years.

The printing inks were developed for the new low energy UV lamp technology

Source: Flint Group

The printing inks were developed for the new low energy UV lamp technology

Source: Flint Group

Flint Group in collaboration with OEMs and lamp manufacturers has developed and is now launching a full range of low energy UV curing highly reactive inks and coatings under the name "Ultraking Xcura” for sheetfed and web offset printing. One of the features is that one product will print on certain non porous, as well as standard coated and uncoated substrates. The inks have a high colour strength, display good ink/water stability and require lower levels of energy to operate. They also comply with ISO 2846-1 and are suitable for printing to ISO 12647-2 standard.

Need for exhaust is removed

Ecological advantages are derived from the new low energy lamp technology, not least of which is that the lamps filter out or eliminate wavelengths below 290nm. Consequently there is no ozone created, hence the need for exhaust is removed. The inks are formulated using a selection of photoinitiators which absorb at the higher end of the spectrum and are improved for high speed curing. They are highly reactive, the need for multiple UV lamps is not necessary, thus reducing operating costs for the printer.

Technology improves delivery times

The inks will be attractive to the fast turnaround conventional printers who can save energy costs by eliminating infra-red drying and warm air drying for water based coatings, turning around work in a matter of minutes, saving on work-in-progress and improving delivery times.

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