Advances in ink chemistry are helping packaging converters improve recyclability, reduce emissions, comply with evolving regulations and support the transition to more sustainable packaging.
Growing environmental regulations and changing consumer expectations are transforming the packaging industry. While substrates often receive the most attention in sustainability discussions, inks have become equally important in determining whether printed packaging can meet recycling requirements, comply with global legislation and deliver reliable performance.
Today’s packaging converters require inks that do much more than produce vibrant graphics. Modern formulations must support recyclable packaging structures, minimise environmental impact and remain compatible with new-generation materials entering the market. As sustainability becomes central to packaging design, ink technology is evolving rapidly to address these challenges.
The Evolution of Sustainable Ink Chemistry
Ink manufacturers are developing new formulations using renewable raw materials, bio-based ingredients and plant-derived oils. These next-generation chemistries are designed to perform consistently on fibre-based packaging, recyclable films, mono-material structures and bio-based substrates without compromising print quality.
The shift towards sustainable formulations allows converters to support brand owners that are redesigning packaging for improved recyclability while maintaining the colour consistency and durability expected in commercial production.
As packaging materials continue to evolve, inks must adapt alongside them to ensure reliable adhesion and long-term performance across increasingly diverse substrates.
Low-Emission Ink Systems Gain Momentum
Reducing emissions has become another major focus for ink development. Traditional solvent-based formulations are increasingly being replaced by low-VOC, MEK-free and water-based alternatives that improve workplace safety while helping converters comply with stricter environmental regulations.
Renewable solvents such as bio-based ethanol, butanol, limonene and ethyl lactate are also gaining attention due to their lower environmental impact and improved biodegradability. These formulations reduce odour and enhance operator safety without requiring significant changes to existing production workflows.
Water-based ink systems are also becoming more common in corrugated and monochrome printing applications, offering lower emissions while maintaining high production efficiency.
PFAS-Free Formulations Prepare for Future Regulations
Global regulatory changes are accelerating the transition towards safer ink chemistries. Many manufacturers have already introduced PFAS-free formulations in anticipation of tighter environmental legislation, while efforts are also underway to eliminate persistent organic pollutants (POPs) from printing inks.
These developments help converters reduce future compliance risks while supporting evolving regulatory frameworks such as the Packaging and Packaging Waste Regulation (PPWR) and Extended Producer Responsibility (EPR) initiatives.
By adopting compliant ink technologies today, converters can minimise the need for future reformulation and provide greater assurance to brand owners seeking long-term packaging solutions.
Improving Recycling Through Better Ink Design
Ink technology is increasingly being developed with recyclability in mind. New formulations aim to improve deinking performance, allowing printed substrates to move more efficiently through recycling processes.
Innovations include primers that enable UV-cured inks to separate more effectively during recycling, along with plant-oil-based formulations that perform well in enzyme-assisted deinking systems.
These advancements help maintain the quality of recycled fibres and plastics, supporting the circular economy while improving the overall value of recovered materials.
Energy-Efficient Printing Technologies
Sustainability extends beyond ink chemistry to the printing process itself. Modern aqueous ink systems are being formulated to dry more efficiently, reducing the number of drying units required and lowering energy consumption.
At the same time, UV LED curing technologies are replacing conventional mercury-based curing systems. LED curing offers lower energy usage, longer equipment life and more stable curing performance while reducing environmental impact.
These developments allow converters to improve production efficiency, lower operating costs and reduce their carbon footprint without sacrificing print quality.
Preparing for the Future of Sustainable Packaging
The future of packaging printing will depend on close collaboration between ink manufacturers, press suppliers, converters and brand owners. As sustainability requirements continue to evolve, converters will increasingly require ink systems that combine high print quality with environmental performance and regulatory compliance.
Choosing ink technologies that are compatible with recyclable substrates, energy-efficient production methods and future legislation will help businesses remain competitive in an increasingly sustainability-driven market.
Investment in advanced ink research and development is expected to continue as the industry moves towards packaging solutions that support circular economy objectives while meeting the demanding performance requirements of modern print production.
Sustainable inks are no longer simply an environmental alternative—they have become a critical element in the future of packaging printing, enabling converters to deliver high-quality, compliant and recyclable packaging solutions for global markets.
Editor’s Note: This feature has been adapted from industry insights shared by Natasha Jeremic, Head of Piezo Inks at Domino Printing Sciences, and supplemented with broader industry perspectives for editorial purposes.
Source: Domino Printing Sciences industry insights.
For more information: https://www.domino-printing.com/