Driving Environmental Efficiency in Packaging and Labels
- Published: May 1, 2026, By Trevor
By Pierre Dogliani, Narrow Web Europe Technical Director at Flint Group
The narrow web printing landscape is shifting under our feet. Sustainable ink technologies and processes are rapidly evolving, propelled by the urgent need to align ambitious environmental objectives with performance and productivity demands. From dual cure inks and UV LED curing systems to advanced water-based formulations and recycling-optimized coatings, converters now have proven tools to meet brand owner expectations while driving environmental efficiency in label and packaging production.
The Catalysts for Change
It’s a story that’s been getting louder in recent years – brand owners, facing scrutiny from consumers and investors alike, are prioritizing labels and packaging that demonstrate tangible reductions in environmental impact. From carbon footprints to water generation, priorities have shifted, and this change is manifesting in requests for certifications and lifecycle assessments that validate eco-credentials. Converters are being pushed to adopt inks and processes designed for low impact, with fewer volatile organic compounds (VOCs) and improved recyclability.
The regulatory landscape adds a further layer of complexity. Evolving standards governing food contact materials impose ever more stringent migration requirements, driving changes in raw material selection and ink formulation, while directives like the Packaging and Packaging Waste Regulation (PPWR) are encouraging shifts towards highly recyclable, low waste packaging designs.
Converters find themselves having to navigate these challenges by adapting the technologies they use. In particular, scalable solutions that can integrate into existing presses and handle diverse substrates are in high demand as printers seek to minimize disruption and downtime during the transition.
Dual Cure Inks Bridge Curing Methods
Dual cure inks present an invaluable tool in this landscape. Engineered for effective curing under both conventional UV and UV LED arrays, their hybrid capability enables narrow web printers to transition gradually, retrofitting lamps without full press overhauls, thereby preserving investment in legacy equipment while unlocking energy savings.
In practice, these inks can support the vibrant, high-resolution demands of modern label design while making energy efficient UV LED curing more accessible. When paired with UV LED, dual cure inks respond to narrower wavelength spectra that enable precise curing and avoiding overexposure. They deliver almost 100% electrical efficiency rather than wasting energy in the form of heat dissipation, and activate instantly, cutting start-up waste on short runs.
This curing evolution cascades into broader gains: cooler running temperatures expand substrate options, including low-melt PE and bio-based films, while consistent output across the web width ensures uniform cure density. Printers can therefore achieve faster speeds with fewer defects, positioning sustainability as a key lever for productivity as well.
The Maturation of Water-based Inks
Water‑based inks have also moved from niche roles into a serious consideration for mainstream narrow web applications. Historically, concerns have existed around drying speed, robustness, and consistency on non‑absorbent substrates. Over time, however, modern water‑based technologies have evolved and now offer inherently low‑VOC profiles that avoid solvent recovery systems, reduce odor, and remove flammability concerns associated with high‑solvent formulations.
Today’s water‑based dispersions are engineered for superior transfer, laydown, and adhesion on a wide range of papers, films, and label stocks. Resin and pigment technologies, combined with tailored additives, support high color strength and good resistance properties, including scuff and water resistance where needed. From a practical standpoint, operators benefit from healthier pressroom conditions and simpler handling procedures. Cleanup with water or mild detergents rather than strong solvents translates into faster job changes, fewer hazardous chemicals, and opportunities to cut waste and downtime during cleaning.
Importantly, water‑based inks can contribute to downstream sustainability goals. By avoiding or minimizing certain solvents and by supporting mono‑material packaging structures, these formulations can make it easier for printed packs to enter mechanical recycling streams without compromising on on‑press performance. In many cases, narrow web printers can now pair water‑based formulations with optimized drying systems at high speeds, making them a credible option for a growing array of label segments where low emissions and food compliance are priorities.
Addressing Contamination with Recycling-optimized Formulations
Even when suitable substrates and inks are selected, recycling systems can still struggle if printed materials do not behave as required during sorting and reprocessing. Recycling streams, particularly for PET bottles and films, suffer when inks and coatings resist removal, causing issues such as discoloration in recycled PET (rPET) and other recyclates. This is where recycling-optimized primers, inks, and overprint varnishes show their value.
De-inkable primers and wash-off overprint varnishes are specifically designed to separate cleanly during standard recycling processes. In the case of shrink sleeves for PET bottles, for example, coatings can be engineered to cleanly detach in the hot caustic wash step so that the label and its ink layer separate from the bottle and can be removed. By enabling the printed layer to break away, these solutions increase the amount of usable material that can be reclaimed and help maintain the optical quality of rPET.
Beyond shrink sleeves, deinking concepts are being extended to other label formats and substrates in narrow web. Formulators are aligning systems with widely recognized recyclability guidelines so that converters and brand owners can be confident that their printed labels will not be the weak link in an otherwise recyclable pack. This kind of formulation work will prove essential as design-for-recycling criteria become embedded in regulation and retailer specifications.
Coatings for PET bottle shrink sleeves can be engineered to enable clean separation from the bottle during recycling. Image courtesy of Flint Group
Collaborative Frameworks and Transparent Commitments
While print technologies themselves evolve toward sustainability, genuine progress increasingly depends on collaboration. Narrow web printers, suppliers, and brand owners are recognizing that alignment with external standards is crucial to make sure new inks and processes work within real‑world collection and recycling infrastructure. Partnerships with organizations such as APR, RecyClass, CEFLEX, and EPBP are becoming increasingly important across the packaging value chain in 2026, as these bodies refine testing protocols and expand the scope of recognized ink and coating solutions.
From these collaborations, the industry gains practical tools such as design‑for‑recycling guidelines and checklists that help teams make informed choices around substrate‑ink‑adhesive combinations. Ink and coating developers can submit their technologies for evaluation against these guidelines, using the outcomes to support claims and help customers make decisions grounded in recognized criteria rather than marketing language alone.
Internally, many suppliers and printers are also working through co‑development projects with customers to quantify and reduce Scope 1 and Scope 2 emissions. Optimization of curing systems, reductions in waste, and improvements in press efficiency can all contribute to those goals. Public commitments, such as science‑based emissions targets and independent sustainability ratings, add transparency and accountability to these efforts and help demonstrate that ink and process innovation is part of a wider corporate strategy rather than an isolated initiative.
Towards Integrated Circularity
The innovation ongoing in more sustainable ink technologies and printing processes are creating holistic ecosystems: dual cure inks with UV LED for energy-efficient printing, water-based for reducing emissions, and recyclable coatings for simplifying end-of-life processing. Converters leveraging these advancements both satisfy brand and regulatory pressures as well as gaining distinct competitive advantages through cost savings and positioning themselves as innovation leaders. As 2030 circularity horizons approach, such tools mean that narrow web printing is emerging stronger and is elevating performance across the board.
About the Author
Pierre Dogliani is the Narrow Web Europe Technical Director at Flint Group, specializing in ink technology, innovation and sustainability. With a background in polymer sciences and, formerly, an R&D Innovation Manager at the company, he focuses on advancing high-performance, sustainable printing solutions, including UV technology. Flint Group is dedicated to serving the needs of the global Flexible Packaging, Paper & Board, Narrow Web and Publication industries, both conventional and digitally printed. Visit: https://www.flintgrp.com/
