Patents Assigned to SCA Hygiene Paper AB
  • Patent number: 6096167
    Abstract: Process for the manufacture of a colored fibre material, containing a certain proportion of cellulose fibres, such as paper and nonwoven. A dyestuff is applied onto reel or sheet pulp either on the whole material or only on part of it, whereupon the reel or sheet pulp is defibrated and dispersed in liquid or foam possibly together with other fibres. The fibre dispersion is thereafter applied onto a wire and dewatered, whereupon the formed fibre web, which contains a substantially even addition of colored fibres, is subjected to possible further treatment steps before drying and reeling. A fibre material manufactured according to the process is also disclosed. If only part of the pulp fibres are colored, a mottled color impression of the material is obtained.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: August 1, 2000
    Assignee: SCA Hygiene Paper AB
    Inventors: Lennart Reiner, Ulf Holm
  • Patent number: 6089401
    Abstract: A braking arrangement for dispensers of continuous material particulary paper dispensers includes a first gearwheel arranged for rotation about a first axis, and second gearwheel arranged for rotation about a second axis. The second gearwheel is arranged for displacement relative to the first gearwheel such that the second axis remains parallel to the first axis. In addition, the second gearwheel is biased towards the first gearwheel to partially intermesh therewith such that a variable gap is defined between the first and second gearwheel for passage of a continuous material.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: July 18, 2000
    Assignee: SCA Hygiene Paper AB
    Inventor: Allan Sal.ang.ker
  • Patent number: 6068734
    Abstract: Soft, bulky, absorbent paper containing at least 20 percent by weight of a high-temperature chemithermomechanical pulp (HT-CTMP), calculated on the total fibre weight. The paper also contains at least 10 percent by weight pulp that exhibits good strength properties, such as chemical pulp and/or recycled fibre pulp, and has a bulk of at least 5.5 cm.sup.3 /g. The bulk, absorption and liquid-dispersion properties of the paper are enhanced by admixing HT-CTMP with the paper pulp.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: May 30, 2000
    Assignee: SCA Hygiene Paper AB
    Inventors: Hans Wallenius, Bengt Nordqvist
  • Patent number: 6037282
    Abstract: Nonwoven material produced by hydroentangling a fiber web, comprising recycled fibers with a fiber length of between 5 and 60 mm and a fineness of between 0.1 and 20 dtex, which are constituted by fibers which are mechanically shredded or torn from nonwoven waste, textile waste or the like. The fibers are mixed with each other and possibly with new fibers in a wet-formed, foam-formed, air-laid or dry-laid fiber web which is hydroentangled with sufficient energy for forming a compact absorbent material.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: March 14, 2000
    Assignee: SCA Hygiene Paper AB
    Inventors: Ebbe Milding, Ulf Holm, Gerhard Lammers
  • Patent number: 6017833
    Abstract: Nonwoven material produced by hydro-entanglement of a wet- or foam-formed fibre web, which material contains at least 5%, by weight of the total fibre weight, of pulp fibres of chemical-thermomechanical type. These fibres have been mixed with other fibres, such as chemical pulp fibres, vegetable fibres, synthetic fibres or regenerated cellulosic fibres in a wet- or foam-formed fibre web which has been entangled with sufficient energy to produce a dense, absorbent material.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: January 25, 2000
    Assignee: SCA Hygiene Paper AB
    Inventors: Lennart Reiner, Ulf Holm, Gerhard Lammers
  • Patent number: 5853538
    Abstract: Method of producing a nonwoven material by hydroentangling of a fiber web, whereby dry fibers, natural and/or synthetic, are metered into a dispersion vessel, possibly after pre-wetting. The fibers are dispersed in a foamable liquid including water and a tenside for forming a foamed fiber dispersion, which is applied to a wire and drained. The formed fiber web is subjected to hydroentangling directly after forming and the foamable liquid, after having passed through the wire, is recirculated to the dispersion vessel in a simple closed circuit.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: December 29, 1998
    Assignee: SCA Hygiene Paper AB
    Inventor: Lennart Reiner
  • Patent number: 5720851
    Abstract: Method of producing a foam-formed fibre or paper web, whereby a foamed fibre dispersion is formed by dispersing natural and/or synthetic fibres in a foamable liquid comprising water and a tenside in a dispersion vessel (111) and by conveying the foamed fibre dispersion to a wire (118) on a paper machine. The foamed liquid which is removed through the wire (118) is conveyed to a closed foam tank (128) in which a draining of the liquid to the bottom of the tank occurs, whilst the lighter foam is collected in the top of the foam tank. Liquid from the bottom of the foam tank is led to the dispersion vessel (111) via a first pipeline (129), whilst foam passes to the dispersion vessel via a second pipeline (130) in the top of the foam tank where the fibres are added and dispersed in the foamable liquid.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: February 24, 1998
    Assignee: SCA Hygiene Paper AB
    Inventor: Lennart Reiner
  • Patent number: D396369
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: July 28, 1998
    Assignee: SCA Hygiene Paper AB
    Inventor: Giorgetto Giugiaro