Northern birch pulp made to perfection
UPM Betula fibres are short and thin-walled, providing very high tensile strength for several paper applications. Birch fibres are longer than eucalyptus pulp’s, yet shorter than in softwood pulp.
Birch has a high hemicellulose content compared to many other pulp grades, giving fibres natural stiffness, strength and easy refinability.
UPM Betula is a bright, premium grade fibre which requires very low refining energy. It rapidly develops tensile strength, bonding, high density and very low porosity