Siegwerk unveils NC-free toolbox for recyclable packaging

Siegwerk has launched a new NC-free toolbox for flexible packaging, combining a range of nitrocellulose-free ink solutions for lamination and surface applications in gravure and flexo printing. Initially available in the EMEA region, the toolbox enables customers to develop recyclable polyolefin packaging that meets current recycling standards.

Dr Björn Ewig, head of technology for flexible packaging at Siegwerk in EMEA, explained: "Inks based on nitrocellulose offer many advantages but can significantly hinder material recycling. They can cause odours and discolouration, lowering recyclate quality." As the recycling regulatory landscape evolves, particularly within the European Union, NC-based inks are facing increased restrictions.

The new toolbox includes inks based on advanced polyurethane resins, which provide similar performance to NC-based options while being more compatible with recycling. "Our NC-free toolbox is a milestone in the development of NC replacement," said Dr. Ewig. "It combines high packaging performance with better recyclability, enabling customers to create packaging solutions that are both effective and sustainable."

The toolbox offers a full range of colour, white, and overprint varnishes for lamination and surface applications, all fully compliant with recycling guidelines. It is available either as ready-to-use inks or masterbatch systems.

Dr Hanns Martin Kaiser, vice president of flexible packaging for Siegwerk in EMEA, added: "With this toolbox, customers can easily find the right NC-free solution for recyclable PE and PP structures without compromising performance."

The NC-free toolbox is a key part of Siegwerk’s ongoing efforts to support sustainable packaging solutions. The company continues to optimise its ink formulations to meet the demand for circular packaging that complies with Design for Recycling guidelines.