Digital printing has transformed the industry — shorter runs, faster time-to-market, personalisation at scale. But until recently, sustainability was a weak point: toner chemistry, inkjet compatibility, and the range of available eco-substrates lagged behind the promise. In 2026, that gap is closing fast.
The Role of Primers in Sustainable Digital Print
At interpack 2026, Michelman’s Jan Denies presented alongside HP in a session titled “Unleashing the Full Potential of Digital Print,” focusing on a component that many print buyers never see: the primer.
A primer prepares the substrate surface to receive digital ink. Without the right primer on recycled paper or bio-based film, you get:
- poor ink adhesion and durability
- ink bleeding on porous surfaces
- reduced colour density and accuracy
- uneven coverage across the sheet
With the right primer, the range of compatible substrates expands significantly — meaning your press is no longer restricted to a narrow list of certified media for each device.
Recycled Paper and FSC in Digital Print
The two most commonly requested sustainable substrates are recycled paper (80–100% recycled content) and FSC-certified stock. Both bring specific digital print considerations:
- Recycled paper has higher porosity and variable whiteness — requires a calibrated ICC profile and ideally a primer application
- FSC-certified stock from quality suppliers is highly consistent — minimal adjustment overhead
- Cellulose-based films for digital print require surface preparation but deliver outstanding visual results
On-Demand Printing: The Smallest Environmental Footprint
One of the most powerful sustainability practices in digital printing is also the simplest: only print what is needed. The on-demand model delivers:
- zero obsolete inventory going to waste
- no excess material cost on short runs
- smaller logistics footprint
- personalisation without waste from unused units
Print providers offering on-demand services have a clear advantage in conversations with sustainability-conscious buyers — especially those responding to public procurement requirements that now include CO2 reporting.
LED-UV: Energy Efficiency Without Compromise
LED-UV technology is one of the best capital investments for sustainable digital print operations. Compared to conventional UV:
- up to 70% lower energy consumption during curing
- no ozone emissions
- lamp life of 30,000+ hours vs. 1,000–2,000 hours for conventional UV lamps
- instant curing — no waiting time between print processes
- compatible with heat-sensitive substrates including films and self-adhesive materials
A Practical Roadmap for Your Print Shop
The sustainable transition in digital print does not require a revolution — it requires a systematic approach:
- Substrate audit: review how much of your current stock is already FSC or recycled. Target: 60%+ within 12 months.
- Primer testing: for each new sustainable film or paper, run a test print with and without primer to establish the baseline.
- ICC profiles for sustainable substrates: profiles are not universal. Each new material requires calibration.
- Client communication: transparently report the CO2 footprint of each project — this is becoming a standard requirement in B2B procurement.
Aero Print is actively investing in sustainable solutions — from FSC-certified paper stocks to LED-UV finishing. Contact us to plan your next project with the smallest possible environmental footprint.
Frequently Asked Questions
Why are primers important in digital printing on recycled paper?
Recycled paper has higher porosity and variable surface characteristics. Without a primer, ink adhesion is poor, bleeding occurs on porous surfaces, and colour density is reduced. A primer homogenises the surface and significantly expands the range of compatible substrates.
Is FSC paper suitable for digital printing?
Absolutely. FSC-certified stock from quality suppliers is highly consistent and requires minimal ICC profile adjustments. It is the standard choice for sustainable print projects.
What is the advantage of LED-UV printing over conventional UV?
LED-UV uses up to 70% less energy, produces no ozone emissions, has lamp life of 30,000+ hours versus 1,000–2,000 hours for conventional UV lamps, and provides instant curing. It is compatible with heat-sensitive substrates including films and self-adhesive materials.
How does on-demand printing improve sustainability?
On-demand printing means producing exactly the quantity ordered — no inventory, no wasted unused materials. This dramatically reduces environmental footprint for short runs and personalised projects.
Posodobljeno: 03-05-2026