Sustainable Ink Innovation for Flexible Packaging
As sustainability becomes a defining priority in flexible packaging, ink technologies must evolve to meet both environmental and performance demands. At DF Inks we are responding to this shift with PU Ultima, a next generation polyurethane-based ink series engineered for high-speed printing, substrate versatility and circular economy compatibility.
The Push Toward Circular Flexible Packaging
Modern flexible packaging faces a core dilemma: how to maintain barrier performance and durability while improving recyclability. Traditional multilayer films often hinder recycling processes, especially in food contact applications. The packaging sector is now pivoting towards mono-material structures (such as PE and PP) that support mechanical recycling without compromising integrity.
This transformation demands ink systems that are PVC-free, nitrocellulose-free, and compatible with mono-material substrates, precisely where PU Ultima delivers.
PU Ultima: Efficiency Meets Sustainability
PU Ultima includes two distinct ink systems:
- PUF for flexographic printing
- PUR for gravure printing
Both are engineered to maximize bond strength, heat and humidity resistance, and color consistency, even at speeds exceeding 600 meters per minute. In addition to outstanding printability, PU Ultima offers:
- Low solvent retention
- High pigment concentration (reducing ink consumption)
- Excellent adhesion on BOPP, PET, PE, PP, MDOPE, BiOPA, and coated substrates such as PVDC, AlOx, and SiOx
These performance features enable fewer ink changeovers, optimized stock management, and reduced press downtime making the solution attractive for converters focused on cost efficiency and regulatory compliance.
Designed for Recycling: Aligned with CEFLEX and PPWR
In line with CEFLEX’s “Designing for a Circular Economy” guidelines, PU Ultima is considered recycling-compatible when it accounts for less than 5% of the total packaging weight. It also supports the upcoming Packaging and Packaging Waste Regulation (PPWR), helping converters future-proof their operations against tightening EU legislation.
A Strategic Solution for Eco-Conscious Converters
Choosing PU Ultima is a strategic shift toward sustainable packaging innovation. The series not only supports circular design goals but also helps converters streamline operations, reduce environmental impact and meet growing brand owner demands for eco-conscious packaging solutions.
