Whitepaper

Responding to new regulatory challenges with an eco-friendly and effective repulping aid

New regulations, especially in Europe, will further restrict use of traditional hypochlorite in wet-strength papers. A new eco-friendly repulping aid was developed as an alternative to hazardous and eco-challenging substances.

Responding to new regulatory challenges with an eco-friendly and effective repulping aid

Wet-strengthened paper grades often require a use of oxidative repulping aids. Traditional hypochlorite is undesirable due to its hazardous nature and a contribution to AOX. New stricter regulations, especially in Europe, will restrict its use even further. Alternative persulfate powders are more eco-friendly, but often limited in their effectiveness and have some drawbacks, e.g., alkaline yellowing of pulp.

A new eco-friendly repulping aid, FennoSpec 9368, was developed by Kemira. This product is based on sodium percarbonate chemistry and provides an economic alternative without significant drawbacks. The benefits, advantages and industrial experiences with FennoSpec 9368 are reviewed in this paper.

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