Flexible Packaging
NC-free inks open the path towards enhanced circularity in flexible packaging
With sustainability becoming a priority in the packaging sector, pressure is mounting on packaging professionals to adopt more environmentally friendly ink technologies.
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egulatory frameworks like the European Union’s Packaging and Packaging Waste Regulation (PPWR) are pushing stakeholders to adopt materials and processes aligned with the principles of the circular economy, prompting many to seek out the latest sustainable innovations.
One emerging area of focus is the growing use of nitrocellulose-free (NC-free) inks. These formulations are increasingly seen as crucial for improving the recyclability of flexible packaging, as they support recycling by avoiding common challenges associated with NC. At the forefront of this transformation is Flint Group, a global leader in printing inks and coatings, which provides NC-free solutions, including polyurethane-based (PU-based) inks designed to enhance recyclability and improve recyclate recovery rates.
WHY NC-FREE INKS MATTER NC-based inks have historically been used within flexible packaging inks and coatings due to their excellent printability, fast drying times, and strong substrate adhesion. However, these benefits come with reduced compatibility with the mechanical recycling process as their sensitivity to heat can lead to the discoloration of the recycled recyclate.
As recycling guidelines evolve, the limitations of NC-based inks are becoming more evident. Consequently, NC-free inks are no longer just an option for converters aiming to meet high sustainability standards – they are quickly becoming a necessity.
THE REGULATORY PUSH FOR CIRCULARITY
The push towards NC-free inks is not just a matter of improving recycling processes – it is increasingly a regulatory requirement. The European Union’s Packaging and Packaging Waste Regulation (PPWR) has mandated higher recycling targets and introduced stricter design-for-recycling standards. This regulation
36 May 2025
FLINT GROUP’S EXPERTISE IN NC-FREE SOLUTIONS
has directly impacted flexible packaging, where every component – from substrates to adhesives and inks – must contribute to recyclability. NC-free inks align with these goals by enhancing compatibility with recycling, making it easier for recycling infrastructure to operate efficiently.
Additionally, the PPWR has introduced Extended Producer Responsibility (EPR) schemes, which impose fees on packaging printers and converters based on the recyclability of their packaging materials. As a result, many packaging companies are seeking alternative ink solutions to improve the recyclability of their products. By adopting NC-free inks, printers and converters future- proof themselves for regulatory compliance and also enhance their market competitiveness by demonstrating their commitment to sustainability.
Flint Group is a pioneer in sustainable printing technologies, and this commitment to the environment is exemplifi ed by its NC-free ink solutions. The company’s VertixCode (for fl exographic printing) and MatrixCode (for gravure printing) ink ranges are available in NC- free formulations, specifi cally designed to meet the demands of modern fl exible packaging while ensuring compliance with recycling guidelines. Both product ranges provide outstanding adhesion and heat resistance while maintaining compatibility with recycling processes. Designed for enhanced colour strength and consistency, these sustainably-focused technologies leverage advanced PU resin instead of NC, and ensure superior performance at high printing speeds. These inks are an excellent choice for converters aiming to maximise the circularity of their fl exible packaging. Flint Group also designs and manufactures its own range of PU and acrylic resins for fl exible packaging, which ensures that the company will be able to promptly adapt and respond to any future changes in regulations governing these ink components.
SUPPORTING THE INDUSTRY The adoption of NC-free inks represents a signifi cant step towards enhancing the circularity of fl exible packaging. As regulations tighten and consumer expectations evolve, printers and converters must adapt quickly to remain competitive. Flint Group is paving the way for businesses transitioning to NC-free inks with a comprehensive portfolio that supports today’s printers in achieving compliance and sustainability. The company’s innovative solutions not only address current challenges but also position its customers as leaders in sustainable packaging. By choosing NC-free solutions, printers can confi dently meet regulatory requirements while delivering products that enhance recyclability within to support a circular economy.
www.convertermag.com
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