Fibre properties in Pinus sylvestris pulpwood
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-si...
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Format: | Article |
Language: | English |
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Finnish Society of Forest Science
1989-01-01
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Series: | Silva Fennica |
Online Access: | https://www.silvafennica.fi/article/5371 |
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author | Laurila, Riitta |
author_facet | Laurila, Riitta |
author_sort | Laurila, Riitta |
collection | DOAJ |
description | 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 L. test trees had tracheids that were shorter both in stems and knot wood than those in normal sized 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.Pinus sylvestris |
first_indexed | 2024-04-13T02:18:40Z |
format | Article |
id | doaj.art-ef8c785b030e461f9ef615441bfbcf84 |
institution | Directory Open Access Journal |
issn | 2242-4075 |
language | English |
last_indexed | 2024-04-13T02:18:40Z |
publishDate | 1989-01-01 |
publisher | Finnish Society of Forest Science |
record_format | Article |
series | Silva Fennica |
spelling | doaj.art-ef8c785b030e461f9ef615441bfbcf842022-12-22T03:07:04ZengFinnish Society of Forest ScienceSilva Fennica2242-40751989-01-0123110.14214/sf.a15530Fibre properties in Pinus sylvestris pulpwoodLaurila, RiittaProperties 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 L. test trees had tracheids that were shorter both in stems and knot wood than those in normal sized 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.Pinus sylvestrishttps://www.silvafennica.fi/article/5371 |
spellingShingle | Laurila, Riitta Fibre properties in Pinus sylvestris pulpwood Silva Fennica |
title | Fibre properties in Pinus sylvestris pulpwood |
title_full | Fibre properties in Pinus sylvestris pulpwood |
title_fullStr | Fibre properties in Pinus sylvestris pulpwood |
title_full_unstemmed | Fibre properties in Pinus sylvestris pulpwood |
title_short | Fibre properties in Pinus sylvestris pulpwood |
title_sort | fibre properties in pinus sylvestris pulpwood |
url | https://www.silvafennica.fi/article/5371 |
work_keys_str_mv | AT laurilariitta fibrepropertiesinpinussylvestrispulpwood |