Back to results
US 4,065,347 AGranted
Method of producing fluffed pulp
AssigneeMolnlycke AB
InventorsSven Ulrik Torbjorn Aberg, Sven Gunnar Bergdahl
Life of this patent
Estimating the term…
Abstract
The present invention relates to fluffed pulp comprising unwashed mechanical pulp with a liquid-diffusing capacity of at least 3.5 grams liquid per gram pulp per minute, a bulk of at least 18 cm.sup.3 /gram and a volume weight in blocks or bales of at most 0.8 grams/cm.sup.3. The invention also comprises a method of producing such a fluffed pulp by means of defibrating the wood and thereafter drying the same with warm air to a dry content of 80-95% by weight without subjecting the pulp to any mechanical compression.
Claims7
Method of producing fluffed pulp;
- characterized in that wood is defibrated and thereafter dried with warm air to a dry content of 80 -95% by weight without resorting to wet pulping or mechanical compression, thereby to produce a fluffed pulp comprising an unwashed mechanical pulp having a liquid diffusing capacity of at least 3.5 grams liquid per gram pulp and minute, a bulk of at least 18 cm.sup.3 /gram and a volume weight in blocks or bales of at most 0.8 g/cm.sup.3.
Dependencies are inferred from the claim text.