Sappi announced an addition to its containerboard product lines with Fusion Uncoated, a fully bleached fresh fibre liner. In contrast to Sappi’s double-coated Fusion Topliner, Fusion Uncoated has a natural, uncoated surface that is ideal for applications such as corrugated board and carton packaging that require a high white appearance for the topliner, inner liner and fluting.
“Sappi’s core expertise lies in the production of fresh fibre papers,” says Bernd Gelder, Product Group Manager for Containerboard at Sappi. “This makes the development of Fusion Uncoated a logical next step in our ambition to create an ever more appealing containerboard portfolio. We can now offer an uncoated surface with a natural look for the premium corrugated board sector. Fusion Uncoated is wood-free and impresses with its high whiteness and strength values.”
Fusion Uncoated is approved for direct food contact and is recommended for use when branded product manufacturers, designers and corrugated board processors are seeking an alternative to brown liner papers. These applications include inner packaging such as white corrugated board inserts for high-end perfume boxes as well as food packaging. These often-unprinted cartons present a luxury surface finish thanks to their high level of whiteness. Other applications include display and shelf-ready packaging, for which uncoated paper finishes are often the preferred option.
Fusion Uncoated is produced at Sappi’s Stockstadt Mill in Germany. Currently there are seven weights available, ranging from 70 to 130 g/m2 in sheet and roll formats.
Also, as a special requirement for food packaging, another version of this liner has recently been developed without the addition of optical brighteners and is offered under the name Fusion Uncoated OF. Both Fusion Uncoated and Uncoated OF feature excellent printability with offset, flexo, screen and digital printing.