Metsä Board launches innovative eco barrier paperboard

Packaging Solutions Green Solutions

Metsä Board is launching a new eco barrier paperboard. This innovative paperboard is bio based, recyclable and biodegradable, and developed especially for food service use. On top of the sustainability benefits, it also offers efficiencies in printing and converting.

There is a clear market need to develop paperboards with bio based barriers as alternatives to fossil based barriers. The new eco barrier paperboard, MetsäBoard Pro FSB EB1, has a bio based and biodegradable special barrier treatment that is fluorochemicals free. The new eco barrier paperboard can be used with foods requiring grease resistance up to KIT level 5, and the barrier properties can be further improved by adding varnishing layers at the converter. This latter option offers a notable increase in efficiency as the barrier property improvement can be made by applying only one varnishing layer in comparison to paperboards without this special barrier treatment.

Finnish converter, OffsetKolmio Oy, has been using the new special barrier treated paperboard for a baguette pack used by artisan bakery, Huovisen Leipomo. ‘We were able to reduce the print cost without compromising on the quality or barrier properties of the board. Print machine time for barrier

treatment was reduced by 50%, and 65% less varnish was needed thanks to the special barrier treatment of MetsäBoard Pro FSB EB1. In addition, this breathable board keeps its form and preserves the filled baguette well,’ confirmed Kimmo Jokinen, managing director, OffsetKolmio Oy.

The product is a lightweight paperboard and is available in basis weights of 195 to 290 g/m2 with all layers hard sized. It enables high quality printing on both sides and is suitable for offset and flexo printing. The consistent quality of the new paperboard gives excellent convertibility. It is glueable with standard dispersion and hot melt adhesives.

It is safe for direct food contact and it is free of optical brighteners (OBA free). It is available with PEFC or FSC certification. It is fully recyclable with conventional recycling systems.

Mika Joukio, Metsä Board CEO, stated: ‘Consumption of takeaway food keeps on increasing. This makes recyclability and biodegradability of food service boards even more important. We are very excited about this new eco barrier paperboard as we see real sustainability and efficiency benefits for our customers. Metsä Board is continuing development work on further innovative barrier solutions.’