A newly developed method for sprinkling (climate-adaptation) at woodyards was tested in a two-part spruce pulpwood-storage experiment during the summer 2001. Four storage alternatives were evaluated during a storage period of eight weeks: climate-adapted sprinkling and dry-stored storage of debarked and undebarked spruce pulpwood. The quality of the pulps made from logs stored under sprinkled conditions were generally comparable to pulp made from fresh pulpwood with one important exception, they provided lower brightness. The majority of the brightness losses occurred during the last four weeks of storage while brightness changes during the First four weeks were relatively small. The pulps made from dry-stored pulpwood suffered also from decreased brightness but the strength properties were also generally worse. The experiments were done by application of a new method for experimental grindings on an industrial scale, which was found to work well. It was easy to identify and handle the individual experimental logs.
Lind, T; Lönnberg, B; Persson, E; Elowson, T; Elsander, A
Dry-storage and water sprinkling of spruce pulpwood.: Part 2.: Effects on groundwood pulp properties
Paperi Ja Puu-Paper And Timber