Patents Assigned to SCA Hygiene Products Aktiebolag
-
Patent number: 8029634Abstract: A method of manufacturing an absorbent article in the form of a pants-type diaper or a sanitary panty starts from a flat blank which includes an elongated absorbent body (5) enclosed between two casing sheets (2, 9) which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond the body on opposite sides thereof. The method includes the step of folding the blank about a transverse axis so that the end edges of the side parts lie edge-to-edge. The front and rear side parts of the blank which oppose one another in the folded state of the blank are joined together by a releasable and refastenable fastener (20).Type: GrantFiled: July 21, 2009Date of Patent: October 4, 2011Assignee: SCA Hygiene Products AktiebolagInventors: Urband Widlund, Anders Gustafsson
-
Patent number: 6802832Abstract: An absorbent product such as a sanitary napkin, a diaper, an incontinence pad or similar article, includes an absorbent body having an absorbent layer presenting a first surface and an opposite second surface. A first material layer is arranged in contact with the first surface of the absorbent layer. A second material layer is arranged in contact with the second surface of the absorbent layer. There is at least one bend indication in the form of a through slit or an elongated opening arranged in the absorbent layer. One of the surfaces of the absorbent layer is mutually joined with the material layer in contact therewith, within a region immediately surrounding the bend indication, on both sides thereof. The absorbent layer's opposite surface in this region is not joined to the material layer in contact therewith.Type: GrantFiled: March 1, 2002Date of Patent: October 12, 2004Assignee: SCA Hygiene Products AktiebolagInventors: Roy Hansson, Kerstin Johansson
-
Patent number: 6534694Abstract: A method of securing an elastic band between two material layers which are at least partially defined by meltable material includes forming perforations in the elastic band, placing the elastic band between two material layers, and bonding the material layers to one another through the perforations by heat fusion, wherein the perforations in the elastic band are formed at the same time as the material layers are fused together (i.e., the formation of the perforations in the elastic band is directly followed by bonding together, through the perforations, portions of the material layers). An elastic band secured between two material layers for inclusion in articles of one-time use includes the use of material layers that are at least partially defined by meltable material and an elastic band having perforations formed therein. The material layers are positioned on opposite sides of the elastic band and are joined together by heat fusion.Type: GrantFiled: October 30, 2001Date of Patent: March 18, 2003Assignee: SCA Hygiene Products AktiebolagInventors: Robert Kling, Berth-Ove Wall
-
Patent number: 6432099Abstract: A waist belt for supporting disposable-type absorbent articles (7), such as incontinence guards or diapers which comprise a front part, a rear part and an intermediate crotch part, wherein the belt can be fastened to the rear part of the article and when fastened to the rear part of the article comprises two front portions (3, 4) which project out laterally from mutually opposing side edges of the rear part of the article and which can be fastened together through the medium of mechanical fastener elements (12, 14) to form a waist band and which taper towards their respective ends over at least a substantial part of their lengths. Each of the front portions includes first fastener elements (12, 13) which are disposed on the outside of the belt, i.e. that side which faces outwardly in relation to the wearer's body in use, and which extend at least over essentially the whole of the tapering portions of the front portions (10, 11) along the longitudinal symmetry lines thereof.Type: GrantFiled: December 13, 2000Date of Patent: August 13, 2002Assignee: SCA Hygiene Products AktiebolagInventor: Peter Rönnberg
-
Patent number: 6340782Abstract: A method of securing an elastic band between two material layers which are at least partially defined by meltable material includes forming perforations in the elastic band, placing the elastic band between two material layers, and bonding the material layers to one another through the perforations by heat fusion, wherein the perforations in the elastic band are formed at the same time as the material layers are fused together (i.e., the formation of the perforations in the elastic band is directly followed by bonding together, through the perforations, portions of the material layers). An elastic band secured between two material layers for inclusion in articles of one-time use includes the use of material layers that are at least partially defined by meltable material and an elastic band having perforations formed therein. The material layers are positioned on opposite sides of the elastic band and are joined together by heat fusion in a punctiform and/or linear bonding pattern.Type: GrantFiled: February 8, 1996Date of Patent: January 22, 2002Assignee: SCA Hygiene Products AktiebolagInventors: Robert Kling, Berth-Ove Wall
-
Patent number: 6300538Abstract: An absorbent article (10) such as a sanitary napkin, having an elongate absorbent core (12) delimited by an upper surface (14) and a lower surface (16), a pair of opposed longitudinal edge portions (18, 20) terminating in longitudinal edges (22, 24), and a pair of opposed transverse edges (26, 28). The core has a first end portion (30), a second end portion (32) and a mid portion (34) located between the end portions. The article further includes a liquid permeable topsheet (36) extending over the upper surface (14) and a liquid impermeable sheet (38) covering the longitudinal edge portions (18, 20) of the absorbent core (12). A strip of generally hydrophobic resilient material (40) is placed between the liquid impermeable sheet (38) and the absorbent core (12) along each longitudinal edge portion (18, 20) of the absorbent core in at least the mid portion (34) to thereby increase the flexure resistance of the article.Type: GrantFiled: November 20, 1996Date of Patent: October 9, 2001Assignee: SCA Hygiene Products AktiebolagInventors: Bengt W. Lindquist, Eva Vastag
-
Patent number: 6241716Abstract: A waist belt for supporting disposable-type absorbent articles (7), such as incontinence guards or diapers which comprise a front part, a rear part and an intermediate crotch part, wherein the belt can be fastened to the rear part of the article and when fastened to the rear part of the article comprises two front portions (3, 4) which project out laterally from mutually opposing side edges of the rear part of the article and which can be fastened together through the medium of mechanical fastener elements (12, 14) to form a waist band and which taper towards their respective ends over at least a substantial part of their lengths. Each of the front portions includes first fastener elements (12, 13) which are disposed on the outside of the belt, i.e. that side which faces outwardly in relation to the wearer's body in use, and which extend at least over essentially the whole of the tapering portions of the front portions (10, 11) along the longitudinal symmetry lines thereof.Type: GrantFiled: July 28, 1998Date of Patent: June 5, 2001Assignee: SCA Hygiene Products AktiebolagInventor: Peter Rönnberg
-
Patent number: 6210387Abstract: The invention relates to liquid-absorbent articles, including diapers, training pants, incontinence guards, and sanitary napkins. Characteristic for the invention is that at least one of the end portions of the absorbent body has a longitudinally tapering shape with a rounded outer edge and that an elastic means is pretensionally applied in a cover enclosing the absorbent body and extends across the article and in a curved path outside the rounded end portion of the absorbent body and equidistantly from the rounded edge. Due to its striving to contract, the elastic means in the curved path section exerts tensile forces across the elastic in a direction towards the center of curvature of the curved path section. When the article is in use, the elastic means, due to the tensile force, lifts the cover around the rounded edge of the absorbent body for formation of a leakage barrier which projects vertically above the absorbent body.Type: GrantFiled: May 12, 1998Date of Patent: April 3, 2001Assignee: SCA Hygiene Products AktiebolagInventors: Åsa Rudberg, Carina Mare
-
Patent number: 6198019Abstract: An absorbent product such as a sanitary napkin, a diaper, an incontinence pad or similar article, includes an absorbent body having an absorbent layer presenting a first surface and an opposite second surface. A first material layer is arranged in contact with the first surface of the absorbent layer. A second material layer is arranged in contact with the second surface of the absorbent layer. There is at least one bend indication in the form of a through slit or an elongated opening arranged in the absorbent layer. One of the surfaces of the absorbent layer is mutually joined with the material layer in contact therewith, within a region immediately surrounding the bend indication, on both sides thereof. The absorbent layer's opposite surface in this region is not joined to the material layer in contact therewith.Type: GrantFiled: June 17, 1997Date of Patent: March 6, 2001Assignee: SCA Hygiene Products AktiebolagInventors: Roy Hansson, Kerstin Johansson
-
Patent number: 6194630Abstract: A superabsorbent fiber or a nonwoven material including a thermoplastic polymeric fiber to which solid particles of superabsorbent material have been thermobonded by heating the polymeric fiber to a temperature at which adhesion is obtained between the fiber and the particles and a method of making the same. Also, an absorbent article is produced including such a superabsorbent fiber or nonwoven material.Type: GrantFiled: March 7, 1996Date of Patent: February 27, 2001Assignee: SCA Hygiene Products AktiebolagInventors: Thami Chihani, Göran Canbäck, Urban Wecke, Thomas Hjertberg
-
Patent number: 6193828Abstract: The present invention relates to a method of producing a plurality of strips starting from a single sheet (1) of elastic film, wherein said single sheet (1) is fed in a longitudinal forward direction (X) up to a severing zone (b), in which the sheet is severed longitudinally into a plurality of strips (2-6), said plurality of strips then being fed further in the forward direction, while simultaneously being stretched in said longitudinal direction to thereby reduce their width (e) and thickness. The invention also relates to an absorbent product which makes use of a plurality of strips which are flat, thin and rectangular in one or more elasticated areas of said product to provide good and uniform breathing ability along said elasticated area(s).Type: GrantFiled: June 17, 1997Date of Patent: February 27, 2001Assignee: SCA Hygiene Products AktiebolagInventor: Robert Kling
-
Patent number: 6100442Abstract: An absorbent article such as a sanitary napkin, a panty liner or an incontinence pad, which is intended to be substantially accommodated within a user's panties and comprising an upper absorbent part (2) and a lower absorbent part (3), whereby the upper absorbent part (2) forms a raised portion (26) projecting from the lower absorbent part (3) and has a lesser extension in the transverse direction of the article than the lower absorbent part (3). A porous liquid acquisition layer (28) is arranged between the two absorbent parts (2,3) and has a density which is less than the density in both the upper absorbent part (2) and the lower absorbent part (3).Type: GrantFiled: June 19, 1998Date of Patent: August 8, 2000Assignee: SCA Hygiene Products AktiebolagInventors: Ann Samuelsson, Charlotte Persson, Solgun Drevik
-
Patent number: 5989370Abstract: The present invention relates to a method and apparatus for ultrasonic welding of material webs which move between at least one ultrasonic horn of an ultrasonic welding arrangement and an anvil holder having a determined pattern of anvils, so as to enable the webs to be welded at high web speeds. The weld width of each ultrasonic horn in the ultrasonic welding arrangement is determined in accordance with the intended highest travel speed of the webs.Type: GrantFiled: May 8, 1996Date of Patent: November 23, 1999Assignee: SCA Hygiene Products AktiebolagInventor: Andreas Wannebo
-
Patent number: 5990375Abstract: The invention relates to a sheathing laminate for an absorbent product, such as a sanitary napkin, a diaper, an incontinence protector or the like, and which is to be used as a liquid permeable top layer, which, when the product is in use, faces the body of the user. The laminate (30) comprises a web (10) of plastic film, to one side of which are fixed two mutually spaced, longitudinal strips (14, 16) of non-woven material, while to the other side of the plastic film web (10)--in an area between the two strips (14, 16) on the opposite side of the plastic film web--there is fixed a longitudinal intermediate strip (26) of non-woven material. When used on an absorbent product, the laminate has perforations (42) at least within a portion of the area of the intermediate non-woven strip (26). The invention also relates to a process for manufacture of the sheathing laminate.Type: GrantFiled: August 22, 1997Date of Patent: November 23, 1999Assignee: SCA Hygiene Products AktiebolagInventors: Bengt Lindquist, Thomas Bohm
-
Patent number: 5958186Abstract: Nonwoven material produced by hydroentanglement of a wet-laid or foam-formed fibre web. The material comprises a mixture of short plant fibres, in particular pulp fibres, and long hydrophillic plant fibres, where the major portion of the fibres presents a fibre length which is at least 10 mm, whereby the portion of long fibres is at least 1 weight-% of the fibre weight. The fibres were mixed with each other in the presence of a dispersing agent which allows a uniform fibre formation, in a wet-laid or foam-formed fibre web which has been hydroentangled with sufficient energy to form a compact absorbing material.Type: GrantFiled: March 19, 1997Date of Patent: September 28, 1999Assignee: SCA Hygiene Products AktiebolagInventors: Ulf Holm, Ebbe Milding
-
Patent number: 5938651Abstract: A disposable, absorbent article such as a diaper or an incontinence guard includes an absorbent pad disposed between inner and outer casing layers. At least one of the inner and outer casing layers is made of an elastic material having areas from which material has been removed while leaving coherent material parts in order to impart different elastic properties to different parts of the material. The material removed can be in the form of through holes or blind holes.Type: GrantFiled: September 24, 1997Date of Patent: August 17, 1999Assignee: SCA Hygiene Products AktiebolagInventors: Urban Widlund, Roy Hansson
-
Patent number: 5855574Abstract: A method of manufacturing an absorbent article, and an absorbent article, in the form of a pants-type diaper or a sanitary panty, starting from a flat blank which includes an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond the body on both sides thereof. The method includes the step of folding the blank around a transverse axis so that the end edges of the side parts lie edge-to-edge. At least one folded band of flexible material is placed between each pair of front and rear side parts which lie opposite one another in the folded state of the blank, and the free ends of the bands are fastened to adjacent side parts.Type: GrantFiled: October 4, 1996Date of Patent: January 5, 1999Assignee: SCA Hygiene Products AktiebolagInventors: Robert Kling, Urban Widlund, Gunilla Hedlund
-
Patent number: RE42478Abstract: A method of manufacturing an absorbent article, and an absorbent article, in the form of a pants-type diaper or a sanitary panty, starting from a flat blank which includes an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond the body on both sides thereof. The method includes the step of folding the blank around a transverse axis so that the end edges of the side parts lie edge-to-edge. At least one folded band of flexible material is placed between each pair of front and rear side parts which lie opposite one another in the folded state of the blank, and the free ends of the bands are fastened to adjacent side parts.Type: GrantFiled: April 11, 1995Date of Patent: June 21, 2011Assignee: SCA Hygiene Products AktiebolagInventors: Robert Kling, Urban Widlund, Gunilla Hedlund