Abstract: Improved fluffed pulp consisting of 95 to 25 percent by weight groundwood and 5 to 75 percent by weight chemical pulp, with a liquid retention capacity of at least 6.5 gram liquid per gram pulp, a liquid dispersing capacity of at least 2.5 gram liquid per gram pulp per minute, a bulk of at least 18 cm.sup.3 /gram and a web strength of at least 0.2 Newton, and a method of producing said pulp by mixing 95 to 25 percent by weight groundwood and 5 to 75 percent by weight chemical pulp beaten in a wet state with each other, dewatering mechanically to a dry solids content of 40 to 50 percent by weight, coarse-defibrating, drying in a flash drying step to 60 to 85 percent by weight, finish-defibrating and finish-drying to 80 to 95 percent by weight dry solids content.
Type:
Grant
Filed:
December 1, 1975
Date of Patent:
March 28, 1978
Assignee:
Molnlycke AB
Inventors:
Sven Ulrik Torbjorn Aberg, Sven Gunnar Bergdahl
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.
Type:
Grant
Filed:
February 20, 1976
Date of Patent:
December 27, 1977
Assignee:
Molnlycke AB
Inventors:
Sven Ulrik Torbjorn Aberg, Sven Gunnar Bergdahl
Abstract: A surgical suction device is provided for removing fluid from a wound which device is adapted to be connected to a suction pump by a hose pipe. The device includes a tubular handle and an inner tube extending from one end of said handle. The inner tube is provided with a suction opening at one end and an open tip at its other end. An outer tube surrounds the inner tube to form an annular space therebetween with the inner and outer tubes being movable relative to each other. The outer tube is telescoped over a portion of the handle and includes an aperture normally aligned with an aperture formed in the handle for controlling the suction functions. A plurality of openings is also formed in the space for quickly removing large quantities of fluid from a wound. At one end of the outer tube there is provided a tapered section having a suction opening for contacting the wound and a seat member at its other end.
Abstract: Absorption products such as compresses, sanitary napkins, diapers or the like which comprise an absorption body furnished with a covering and an at least substantially moisture-impermeable layer which is provided between said body and said covering on the side of the body facing away from the user. The at least substantially moisture-impervious layer comprises short hydrophobic fibers loosely applied and essentially unbound to one another.
Type:
Grant
Filed:
February 4, 1975
Date of Patent:
December 14, 1976
Assignee:
Molnlycke AB
Inventors:
Leif Urban Roland Widlund, Sven Gunnar Bergdahl, Kerstin Anna Helena Strandberg