Fibre Properties in Pinus sylvestris Smallwood

1989

Unselbständiges Werk

2767

200014367

Properties of fibres in pulpwood, especially length, width and the thickness of walls in tracheids, are essential for strength properties of pulp and paper. Length and width of tracheids increase from pith to surface in radial direction. Young and small-sized stems have also smaller fibres. Small-sized Pinus sylvestris test trees had tracheids that were shorter both in stem and knot wood than those in normal sized pulp trees. However, cell walls in test trees were as thick as in normal sized trees. It seems that especially the L/T-ratio (length/thickness) in small stems is worse than in normal sized pulp wood.