Walki®Copy / Walki®Graphic
Barrier paper wrappers for ream packaging – built for circularity
Advanced barrier solutions for paper ream wrappers – optimised for performance, recyclability and future EU compliance
Optimised for runnability, protection and recyclability
In the world of paper ream packaging, performance is not optional. From friction control on high-speed wrapping lines to moisture protection that preserves sheet quality, every detail matters.
Walki’s barrier paper wrappers are engineered to deliver consistent runnability, excellent printability and reliable protection, while aligning with evolving European requirements on packaging and packaging waste. Designed for recyclability in standard paper streams, these solutions support a smooth transition towards fibre-based, circular packaging.
With deep expertise in barrier technologies, coating and printing, Walki offers complete ream packaging solutions tailored to the needs of paper producers and converters.
Product overview
Walki Ream Packaging solutions combine:
- Optimised friction performance to ensure stable stacking and smooth machine runnability
- Rub-off resistance to keep packaging lines clean and efficient
- Moisture barrier protection to maintain paper quality (typically 3–5% moisture content)
- High print quality to strengthen brand visibility
- Recyclability in standard paper waste streams
From PE-free dispersion coatings to low-polymer and high-performance structures, Walki provides a full portfolio of barrier options adapted to different market and regulatory needs.
Built around performance, compliance and application
Customisation
capabilities
Walki offers extensive flexibility to meet specific customer needs:
- Barrier level (moisture, water vapour)
- Barrier type (dispersion, polymer-based, fibre-based)
- Print design (up to 10-colour flexo printing)
- Surface finish (matt, gloss)
- Friction tuning for machine optimisation
- Sheet sizes and formats
From concept to production, Walki supports the full process including prepress, design optimisation and industrial validation.
PPWR-ready
solutions
All Walki ream packaging solutions are developed with the EU Packaging and Packaging Waste Regulation (PPWR) in mind.
- Designed for recyclability (DfR guidelines)
- Reduced plastic content or plastic-free options
- Compatible with existing paper recycling infrastructure
- Potential to optimise EPR fees
This ensures long-term compliance and reduces future transition risks.
Who is it
for?
Walki ream packaging solutions are designed to support a wide range of businesses across the paper and printing value chain, including:
- Paper producers
(office paper, graphic paper) - Paper merchants and distributors
- Printing houses Converters and packaging companies
- Woodfree uncoated paper manufacturers
Developed together with major paper producers for proven packaging performance.
Product categories
Walki®Copy Bio
Water-based barrier technology for circular packaging
Walki®Copy Mono
Minimal polymer. Maximum recyclability.
Walki®Copy Art
Premium appearance. High barrier performance.
Walki®Copy Green
Lower carbon footprint. Strong performance.
Walki®Graphic
Optimised for graphic and folio formats.
dispersion coatING
Walki®Copy Bio
Water-based barrier technology for circular paper packaging
Walki®Copy Bio is an advanced water-based dispersion-coated solution developed for high-performance ream packaging. Designed to combine reliable barrier protection with recyclability, it offers an effective alternative for paper producers looking to support circular packaging goals while maintaining strong converting and printing performance.
- Water-based dispersion coating technology
- Reliable moisture and water vapour protection
- Compatible with various base papers, including WFU
- Excellent printability and branding possibilities
- Strong runnability on packaging lines
- Suitable for recycling in standard paper waste streams
- PPWR – Designed for recyclability (DfR guidelines)
Best for: paper producers and brands seeking recyclable, high-performance barrier wrappers with water-based coating technology.
optimised PE-coatING
Walki®Copy Mono
Minimal polymer. Maximum recyclability.
A classic structure with less than 5% polymer content, enabling recognition as recyclable under Western European standards.
- PE-coated structure (low polymer content)
- Strong moisture and mechanical protection
- Excellent printability
- Good runnability across packaging lines
- PPWR – Designed for recyclability (DfR guidelines)
Best for: cost-efficient, recyclable solutions with proven performance.
PE-coatING
Walki®Copy Art
Premium appearance. High barrier performance.
Designed for demanding environments, including high humidity conditions.
- PE-coated WFU material
- High moisture barrier (suitable for tropical climates)
- Premium print quality (matt and gloss options)
- Strong mechanical resistance
- PPWR – Designed for recyclability (DfR guidelines)
Best for: premium branded reams and challenging logistics conditions.
Plastic-free
Walki®Copy Green
Lower carbon footprint. Strong performance.
A plastic-free alternative with significantly reduced environmental impact.
- Up to 50% lower CO₂ footprint
- Fibre-based barrier structure
- Good moisture protection
- Excellent printability
- Recyclable and biodegradable
- PPWR – Designed for recyclability (DfR guidelines)
Best for: brands targeting reduced carbon footprint and fibre-based packaging.
PE-coatING
Walki®Graphic
Optimised for graphic and folio formats.
Tailored for larger formats and demanding handling conditions.
- PE-coated paper (printed or unprinted)
- Strong mechanical durability
- Good moisture protection
- Reliable runnability
- Available on brown or white base
Best for: graphic papers and board in folio sizes.
Comparison chart
| Feature | Barrier type | Key Strength | Best Use Case | Recyclable |
|---|---|---|---|---|
| Walki®Copy Bio | Water-based dispersion coating | Recyclability + performance | Future-ready circular packaging | Yes |
| Walki®Copy Mono | Optimised PE coating | Cost-efficient recyclable solution | Standard ream wrapping | Yes |
| Walki®Copy Art | PE coated | High moisture protection | Premium / export markets | Yes |
| Walki®Copy Green | Plastic Free | Low CO₂ footprint | Sustainable branding | Yes |
| Walki®Graphic | PE coated | Strength for large formats | Folio and graphic papers | Yes |
Barrier paper is a functional wrapper that protects paper reams from moisture, dirt and mechanical damage while ensuring good runnability on packaging lines.
Yes, most solutions are designed to be recyclable in standard paper waste streams, aligned with PPWR – Designed for recyclability (DfR guidelines)
Walki®Copy Bio uses water-based dispersion coating technology, while Walki®Copy Mono features an optimised low-polymer structure with less than 5% polymer content, designed to be recyclable in standard paper recycling streams.
Correct friction ensures smooth machine performance and stable stacking without slipping.
Walki®Copy Bio and Walki®Copy Green are the leading options for circular, low-impact packaging.
Ready to optimise your ream packaging?
Talk to our experts to find the right barrier solution for your paper, your machines and your sustainability targets. From polymer-free innovation to high-performance wraps, we help you deliver packaging that performs today and complies tomorrow.
