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Siegwerk introduces bio-based ink range for flexo print

A new water-based ink set that incorporates natural resins was launched by German ink formulator Siegwerk on 18 May.

The UniXYL range is designed for use with paperboard products on flexo presses. The resin used in it also comes from the forestry sector as it is derived from lignocellulosic biomass; while the use of an aqueous chemistry minimises the release of volatile organic compounds (VOCs).

Pierre-Antoine Noirot, vice president for innovation at Siegwerk, says: ‘As one of the leading ink manufacturers, we want to set a good example and champion the development of eco-friendly inks. At the same time we have tried to reduce the biomass obtained from food or feed plants, which we have now achieved with UniXYL.’

The inks are fully compliant with existing legislation (Swiss Ordinance) and industry standards for food contact printing. Their launch comes at an opportune time as German authorities have just published plans to enact their own law to regulate packaging inks.

The UniXYL inks have been developed at Siegwerk’s R&D laboratory at Annemasse on the France-Switzerland border. They have already undergone beta-testing at the French site of flexo printer Christiansen Print.

Nadine Rodrigues, general manager of Christiansen Print GaranciĆ©res plant, says: ‘We have tested UniXYL recently, and the inks provided excellent print quality, good colour flow, fantastic colour strength, as well as efficient machinability.’

This article comes from Food Contact World, which provides exclusive news and analysis on developments in digital print trends, markets, and technologies.