Release liner into containerboard: A recycling study and its results

Siliconized release liner generally is perceived as unrecyclable due to the thin layer of silicone on the paper. As interest in recycling more grades of paper grows, niche grades such as liner now are of interest. This study looks at taking two common types of liner and recycling them with old corrugated containers (OCC) to make recycled-containerboard face stock. The mixture of OCC and premium fiber from the silicone-coated release liner produced an equal or better sheet than OCC alone, despite the presumed reduction in strength loss due to the presence of residual silicone.

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