Mondi Develops World-First Release Liner


Usage of release liners continues to grow. Polyolefin coated paper consumption is around nine billion square metres per year with a market share of 16% of the total release liner market (1), which makes environmentally responsible alternatives in the sector all the more important. Mondi has developed the world’s first sustainable polycoated kraft (PCK) paper release liner, which is being launched on a global scale.

Such liners are indispensable to carry and protect pressure-sensitive adhesive (PSA) products, and currently are often discarded once the PSA products are used. Mondi’s NextLiner uses a recycled base paper with a coating made from renewable resources. Using recycled fibres and renewable materials can have a positive impact on the environmental footprint of NextLiner, used in graphic arts, tapes and other industrial applications.

‘Our goal is to be sustainable by design, so we have worked on innovating environmentally responsible NextLiners that support our customers’ sustainability goals. Using recycled fibres and renewable resins takes us one step closer to making the PSA supply chain more sustainable,’ said Stefan Schönberger, Head of Product Sustainability, Mondi Release Liner.

The launch of NextLiner is a first important step in the development of sustainable liners with more to come. Mondi is continually conducting research and development into more sustainable release liner alternatives (for PCK as well as paper and film-based release liners) and recycling-related technologies as a part of the company’s commitment to contribute to a better world.

– NextLiner is currently available in a 90-pound PCK grade (90# Liner), a standard graphic arts grade. Additional grades are available by adjusting the polycoating and paper weight.
– NextLiner is available in a plain or structured version (as AirXLiner).
– Polycoated kraft paper has several advantages over alternative constructions, as it doesn’t tear easily and offers comparable moisture resistance properties. It has good layflatness, even when wet, and typically comes in an overall higher grammage (e.g., 90-gramm) compared to the standard, thinner options often used for labels.

(1) Source: AWA Annual Review Global Release Liner Market 2020.

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