The Lamination Bottleneck: Why Digital Printing Changes Everything
For decades, flexible packaging production has followed a predictable sequence: print the outer film, laminate it to a barrier layer, apply a protective varnish, then wait two to three days for drying before converting. This multi-step workflow is not only time-consuming but also creates the very problem the industry now urgently needs to solve — unrecyclable multi-material structures.
At Interpack 2026 in Düsseldorf, a collaborative project demonstrated that this paradigm is shifting. Xeikon, POLIFILM Performance Films, Actega, and Gruber Folien jointly presented a fully recyclable PP-monomaterial pouch printed on a Xeikon TX500 digital press — with no lamination or post-print varnishing required. The development addresses one of flexible packaging's most persistent sustainability challenges: achieving high barrier performance without complex multi-material laminates.
How Digital Printing Eliminates the Lamination Step
The key to this breakthrough lies in Xeikon's TITON toner technology. Unlike conventional printing processes that require protective lamination or overprint varnishes to prevent ink scuffing and ensure durability, the TITON toner is inherently scratch-resistant. "What we bring to this is that we can print on that with our digital press without the necessity afterwards to varnish or laminate," explained Frank Jacobs, senior product manager at Xeikon, during the Interpack presentation. "The toner is scratch resistant, so you can skip that step entirely."
This matters for two reasons. First, eliminating the lamination layer directly simplifies the material structure — a film that would traditionally combine PET, PE, or aluminum layers can now be a single PP construction compatible with existing polypropylene recycling streams. Second, removing the lamination bottleneck dramatically compresses production lead times. As Jacobs noted, "In conventional flexible packaging production, after lamination you often need to wait two or sometimes three days before converting because of drying time. We can skip that."
The Mono-Material Imperative: Regulation Is Accelerating Change
The urgency behind these innovations is regulatory. Under the EU Packaging and Packaging Waste Regulation (PPWR 2025/40), which enters full application on August 12, 2026, all packaging placed on the EU market must be recyclable. By 2030, packaging must achieve recyclability performance grades of A, B, or C — anything below 70% recyclability will be classified as "technically non-recyclable" and banned. By 2038, only grades A and B will be permitted.
For flexible packaging converters and brand owners, this creates a hard deadline. The multi-material laminates that have dominated the industry for decades — potato chip bags combining PE with PET or PP, coffee pouches with aluminum foil barriers — face existential regulatory pressure. The industry's response has been a rapid pivot toward mono-material structures, and digital printing is emerging as an unexpected enabler of this transition.
Barrier Performance Without Compromise
One persistent criticism of mono-material flexible packaging has been that it cannot match the barrier performance of traditional multi-layer laminates, particularly for demanding applications such as coffee, pet food, and shelf-stable ready meals. The POLIFILM substrate demonstrated at Interpack directly challenges this assumption.
The PP-monomaterial film structure delivers strong oxygen and water vapor barrier properties suitable for sensitive products — including coffee packaging, a category that has historically been among the most dependent on aluminum foil and complex laminates. The collaboration's technical achievement lies in combining POLIFILM's film engineering with Actega's primer and overprint varnish chemistry, all integrated through Xeikon's digital printing platform and converted into functional pouches by Gruber Folien. The result is a packaging structure where every component — film, ink, primer, and varnish — is compatible with PP recycling streams.
Beyond Sustainability: The Business Case for Digital Mono-Material Production
The commercial advantages extend well beyond regulatory compliance:
- Shorter production cycles: Eliminating the 48–72 hour lamination drying window enables faster time-to-market for brand owners running promotional campaigns or seasonal product launches.
- Reduced minimum order quantities: Digital printing's economic viability at short runs allows brands to test new packaging designs, regional variants, or limited editions without the cost burden of conventional flexographic or gravure plate production.
- Supply chain simplification: Fewer material inputs, fewer processing steps, and fewer supplier touchpoints reduce complexity and potential points of failure in the packaging supply chain.
- Waste reduction: Digital printing generates significantly less substrate waste during makeready compared to conventional printing methods, and mono-material structures eliminate the yield losses associated with lamination registration errors.
Industry Collaboration as a Model for Innovation
The Xeikon-POLIFILM-Actega-Gruber Folien project exemplifies a broader trend in the packaging industry: pre-competitive collaboration across the value chain. No single company — whether a film producer, ink supplier, press manufacturer, or converter — can solve the mono-material challenge alone. Each partner brings a distinct capability that, when combined, produces a solution greater than the sum of its parts.
This collaborative model is being replicated across the industry. At the same Interpack event, multiple exhibitors showcased partnerships spanning raw material suppliers, machinery manufacturers, and brand owners, all focused on developing recyclable flexible packaging solutions that meet PPWR requirements without sacrificing performance or cost competitiveness.
What This Means for Packaging Buyers and Brand Owners
For companies procuring flexible packaging, the Interpack 2026 demonstrations signal that digitally printed mono-material solutions are moving from laboratory proof-of-concept to commercial readiness. The technology is no longer theoretical — it is being shown on production-grade equipment with real film structures.
Key considerations for packaging buyers evaluating these solutions include:
- Barrier requirements: Assess whether PP-monomaterial structures meet the specific oxygen and moisture transmission rate requirements of your product category.
- Recycling infrastructure compatibility: Verify that your target markets have PP collection and sorting streams capable of processing mono-PP flexible packaging.
- Total cost of ownership: While digital printing unit costs may be higher than conventional for very long runs, the elimination of lamination, reduced waste, and faster turnaround can shift the overall cost equation in favor of digital mono-material solutions.
- Regulatory timeline alignment: With PPWR recyclability requirements phasing in from 2030, brand owners who transition early can secure supply chain partners and avoid last-minute compliance scrambles.
The convergence of digital printing technology and mono-material film development represents one of the most significant structural shifts in flexible packaging manufacturing in decades. As PPWR deadlines approach and brand owners intensify their sustainability commitments, digitally printed mono-material packaging is positioned to become the new industry standard rather than a niche alternative.
At Sinoflex Packaging, we monitor these technological and regulatory developments closely to ensure our flexible packaging solutions — from stand-up pouches and flat-bottom bags to rollstock films — align with the evolving requirements of global markets. Our manufacturing capabilities are continuously updated to support brand owners navigating the transition toward recyclable, regulation-compliant flexible packaging. Contact our team to discuss how we can support your packaging sustainability goals.