Patents by Inventor Elisabeth Lakso

Elisabeth Lakso has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11471338
    Abstract: An absorbent article having a front panel, a rear panel, an intermediate panel joining the front and the rear panels and optionally one or more fitting components is provided. At least one of the panels and/or the fitting components is elastically contractible and made of an elastic nonwoven material that is pre-stretched and has both non-elastic and elastic polymeric material components in the form of fibers. The nonwoven material is bonded by individual bonding points arranged in a pattern. The pattern has rows of individual bonding points extending in a machine-direction and a cross-direction of the nonwoven material, and each has a centre point. The centre point of each bonding point in a row of bonding points extending in the cross-direction and/or machine-direction is offset from a centre point of each bonding point in a neighbouring row of bonding points extending in the cross-direction and/or in the machine-direction, respectively.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: October 18, 2022
    Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAG
    Inventors: Elisabeth Lakso, Thor Egill Gardarsson
  • Patent number: 11179280
    Abstract: An absorbent article having a topsheet, a backsheet arranged on the garment-facing side, an absorbent core enclosed between the topsheet and the backsheet and a pair of standing gathers. The topsheet and the standing gathers comprise sheet materials with specified stiffness, softness and smoothness properties. The absorbent article may be a diaper or incontinence guard.
    Type: Grant
    Filed: January 2, 2015
    Date of Patent: November 23, 2021
    Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAG
    Inventors: Elisabeth Lakso, Carina Hedlund, Petter Andreassen, Morgan Swedberg
  • Publication number: 20170348163
    Abstract: An absorbent article having a topsheet, a backsheet arranged on the garment-facing side, an absorbent core enclosed between the topsheet and the backsheet and a pair of standing gathers. The topsheet and the standing gathers comprise sheet materials with specified stiffness, softness and smoothness properties. The absorbent article may be a diaper or incontinence guard.
    Type: Application
    Filed: January 2, 2015
    Publication date: December 7, 2017
    Applicant: SCA Hygiene Products AB
    Inventors: Elisabeth LAKSO, Carina HEDLUND, Petter ANDREASSEN, Morgan HANSSON
  • Patent number: 9456934
    Abstract: An absorbent garment has a chassis structure including a front panel having a front end edge, a back panel having a back end edge, a crotch panel arranged between the front and back panels. Elasticated front and back waist panels are arranged along the front and back end edges, and a core component is integrated with the chassis structure. The chassis structure also has a liquid permeable material having a garment facing side and a user facing side and forming a liquid permeable surface layer in the garment. The liquid permeable material extends continuously between the front end edge and the back end edge, and at least one of the front panel and the back panel includes an elastic web that has been bonded to the liquid permeable material with the elastic web stretched by 35-250% in at least one direction.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: October 4, 2016
    Assignee: SCA HYGIENE PRODUCTS AB
    Inventor: Elisabeth Lakso
  • Patent number: 8852372
    Abstract: A method for producing pant-type absorbent articles, each article including a chassis structure having at least one elastic panel and an integrated absorbent core component, the method including a continuous pant-forming process including forming the chassis structure and incorporating the absorbent core component into the chassis structure. The at least one elastic panel is formed by a) separately producing a two-layer laminate having a first non-elastic fibrous nonwoven web and an elastic film, b) activating the two-layer laminate by incremental stretching in at least one activation direction to render the two-layer laminate elastically stretchable, c) stretching the activated two-layer laminate by 10-200% in the activation direction, d) introducing the two-layer laminate) in the pant-forming process, and e) laminating the elastic film of the stretched two-layer laminate to an elastic or nonwoven chassis component. An absorbent pant-type article produced in accordance with the method.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: October 7, 2014
    Assignee: SCA Hygiene Products AB
    Inventors: Elisabeth Lakso, Margareta Wennerbäck, Jan Wästlund-Karlsson
  • Patent number: 8741083
    Abstract: A method for producing an elastically stretchable laminate having at least three layers, the method including the steps of: a) producing a first laminate having a first non-elastic fibrous nonwoven web and an elastic film; b) activating the first laminate by incremental stretching in at least one activation direction to render the first laminate elastically stretchable; c) stretching the activated first laminate to 10-200% in the activation direction; and d) laminating the stretched first laminate to a second non-elastic nonwoven web. An elastically stretchable laminate produced in accordance with the method is also disclosed.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: June 3, 2014
    Assignee: SCA Hygiene Products AB
    Inventors: Margareta Wennerbäck, Jan Wästlund-Karlsson, Elisabeth Lakso
  • Publication number: 20140088537
    Abstract: An absorbent garment has a chassis structure including a front panel having a front end edge, a back panel having a back end edge, a crotch panel arranged between the front and back panels. Elasticated front and back waist panels are arranged along the front and back end edges, and a core component is integrated with the chassis structure. The chassis structure also has a liquid permeable material having a garment facing side and a user facing side and forming a liquid permeable surface layer in the garment. The liquid permeable material extends continuously between the front end edge and the back end edge, and at least one of the front panel and the back panel includes an elastic web that has been bonded to the liquid permeable material with the elastic web stretched by 35-250% in at least one direction.
    Type: Application
    Filed: December 3, 2013
    Publication date: March 27, 2014
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventor: Elisabeth LAKSO
  • Patent number: 8641695
    Abstract: An absorbent article such as a diaper, pant diaper, a sanitary pant or incontinence garment has at least one first elastic web material which is ultrasonically welded to at least one second web material along at least one weld seam. The second web material is different to the first elastic web material and the second web material has a degree of elasticity which is different to the elasticity of the first elastic web material. The ultrasonic weld seam between the first elastic web material and the second web material is reinforced to have a weld strength in a direction transverse to the weld seam which is at least 5N/25.4 mm.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: February 4, 2014
    Assignee: SCA Hygiene Products AB
    Inventors: Kerstin Edwall, Margareta Wennebäck, Elisabeth Lakso
  • Patent number: 8545654
    Abstract: A method for producing pant-type absorbent articles, each article including a chassis structure having at least one elastic panel and an integrated absorbent core component, the method including a continuous pant-forming process including forming the chassis structure and incorporating the absorbent core component into the chassis structure. The at least one elastic panel is formed by a) separately producing a two-layer laminate having a first non-elastic fibrous nonwoven web and an elastic film, b) activating the two-layer laminate by incremental stretching in at least one activation direction to render the two-layer laminate (elastically stretchable, c) stretching the activated two-layer laminate by 35-200% in the activation direction, d) introducing the two-layer laminate in the pant-forming process, and e) laminating the elastic film of the stretched two-layer laminate to an elastic or nonwoven chassis component. An absorbent pant-type article produced in accordance with the method.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: October 1, 2013
    Assignee: SCA Hygiene Products AB
    Inventors: Elisabeth Lakso, Hans Een, Jan Wästlund-Karlsson
  • Publication number: 20130240123
    Abstract: A method for producing pant-type absorbent articles each article including a chassis structure having at least one elastic panel and an integrated absorbent core component, the method including a continuous pant-forming process including forming the chassis structure and incorporating the absorbent core component into the chassis structure. The at least one elastic panel is formed by a) separately producing a two-layer laminate including a first non-elastic fibrous nonwoven web and an elastic film, b) activating the two-layer laminate by incremental stretching in at least one direction to render the two-layer laminate elastically stretchable, c) stretching the activated two-layer laminate by 35-200% in at least one direction, d) introducing the two-layer laminate in the pant-forming process, and e) laminating the elastic film of the stretched two-layer laminate to an elastic or nonwoven chassis component. Also, an absorbent pant-type article produced in accordance with the method.
    Type: Application
    Filed: May 7, 2013
    Publication date: September 19, 2013
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: ELISABETH LAKSO, HANS EEN, JAN WASTLUND-KARLSSON
  • Publication number: 20120245020
    Abstract: An absorbent article such as, for example, a diaper, a sanitary napkin, a panty liner or a male or female incontinence article. The article includes inorganic material. The inorganic material includes carbon which is derived from atmospheric carbon dioxide. Methods for making the absorbent articles are also provided.
    Type: Application
    Filed: December 10, 2009
    Publication date: September 27, 2012
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: Elisabeth Lakso, Chatrine Stridfeldt
  • Patent number: 8057457
    Abstract: Absorbent garment such as a diaper and an incontinence guard, said garment has a first body panel, a second body panel and a crotch portion there between. The garment is provided with opposed laterally extending belt members attached to the waist portion of the first body panel and are adapted to be wrapped around the waist of the wearer of the garment and fastened together by a first fastener. The second body panel at its waist portion is provided with second fasteners adapted to be fastened to the belt members, in such a way that the garment will assume a pant-like shape. An elastic member extends in transverse direction along the waist portion of the first body panel and extends into at least a portion of each belt member.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: November 15, 2011
    Assignee: SCA Hygience Products AB
    Inventors: Lucas Bäck, Elisabeth Lakso, Stefan Nedestam, Ingela Flink-Ekwall, Kent Hermansson, Gunnel Elglund
  • Publication number: 20110257616
    Abstract: A wrapper for an absorbent hygiene article including a sheet of flexible wrapping material. The sheet has a first surface arranged to face the absorbent article and a second surface arranged to be facing away from the absorbent article. The wrapper has at least a portion that is stretchable in at least one direction and has a polymeric coating applied to at least the first or the second surface. The polymeric coating contains an odor control agent. The odor control agent has a first non-active state when the wrapper is in a non-stretched state and a second active state when the wrapper is in a stretched state.
    Type: Application
    Filed: November 7, 2008
    Publication date: October 20, 2011
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: Elisabeth Lakso, Chatrine Stridfeldt
  • Publication number: 20100298798
    Abstract: The invention concerns a method for producing pant-type absorbent articles each article (21) including a chassis structure having at least one elastic panel and an integrated absorbent core component (32), the method including a continuous pant-forming process comprising forming the chassis structure and incorporating the absorbent core component (32) into the chassis structure. The at least one elastic panel is formed by a) separately producing a two-layer laminate (8) comprising a first non-elastic fibrous nonwoven web (1) and an elastic film (6), b) activating the two-layer laminate (8) by incremental stretching in at least one direction to render the two-layer laminate (8) elastically stretchable, c) stretching the activated two-layer laminate (8) by 10-200% in at least one direction, d) introducing the two-layer laminate (24,25) in the pant-forming process, and e) laminating the elastic film (6) of the stretched two-layer laminate (24,25) to an elastic or nonwoven chassis component (39, 40, 23, 54).
    Type: Application
    Filed: May 12, 2006
    Publication date: November 25, 2010
    Applicant: SCA Hygiene Products AB
    Inventors: Elisabeth Lakso, Margareta Wennerbäck, Jan Wästlund-Karlsson
  • Publication number: 20100262110
    Abstract: A method for continuously producing absorbent garments includes forming a continuous multi-component production web; and cutting individual garments from the production web. The production web is formed by: a) feeding a first elastic web in a travelling direction; b) stretching the first elastic web by 35-250% in the travelling direction; c) intermittently laying down absorbent cores in an intermediate zone extending in a travelling direction of the production web; d) feeding a continuous web of liquid permeable material in the travelling direction and covering the absorbent cores with the continuous web of liquid permeable material; and e) bonding the first elastic web to the continuous web of liquid permeable material in a first lateral zone on a side of the intermediate zone of the production web. In addition, an absorbent garment has a continuous liquid permeable layer.
    Type: Application
    Filed: November 14, 2007
    Publication date: October 14, 2010
    Applicant: SCA Hygiene Products AB
    Inventor: Elisabeth Lakso
  • Patent number: 7806884
    Abstract: A pant type absorbent article such as a pant diaper, a sanitary pant or incontinence pant, the article having a core region including an absorbent core and a chassis region surrounding the core region. The article, at least in part of the chassis region, has a outer coversheet in the form of an elastic laminate having puncture resistance of at least 15N, wherein the laminate includes first and second layers of fibrous material and an elastic film layer located between the first and second fibrous layers and in which at least one of the layers of fibrous material has an elongation at maximum load greater than the elasticity of the elastic laminate.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: October 5, 2010
    Assignee: SCA Hygiene Products AB
    Inventors: Jenny Hildeberg, Elisabeth Lakso
  • Publication number: 20100217218
    Abstract: Absorbent garment such as a diaper and an incontinence guard, said garment comprises a first body panel (16), a second body panel (17) and a crotch portion (13) there between. The garment is provided with opposed laterally extending belt members (17) attached to the waist portion of the first body panel (11) and are adapted to be wrapped around the waist of the wearer of the garment and fastened together by means of first fastening means (18). The second body panel (12) at its waist portion is provided with second fastening means (19) adapted to be fastened to the belt members (17), in such a way that the garment will assume a pant-like shape. An elastic member (20) extends in transverse direction (x) along the waist portion (11a) of the first body panel (11) and extends into at least a portion of each belt member (17).
    Type: Application
    Filed: June 21, 2006
    Publication date: August 26, 2010
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: Lucas Bäck, Elisabeth Lakso, Stefan Nedestam, Ingela Flink-Ekwall, Kent Hermansson, Gunnel Elglund
  • Publication number: 20090326503
    Abstract: A method for producing pant-type absorbent articles, each article including a chassis structure having at least one elastic panel and an integrated absorbent core component, the method including a continuous pant-forming process including forming the chassis structure and incorporating the absorbent core component into the chassis structure. The at least one elastic panel is formed by a) separately producing a two-layer laminate having a first non-elastic fibrous nonwoven web and an elastic film, b) activating the two-layer laminate by incremental stretching in at least one activation direction to render the two-layer laminate (elastically stretchable, c) stretching the activated two-layer laminate by 35-200% in the activation direction, d) introducing the two-layer laminate in the pant-forming process, and e) laminating the elastic film of the stretched two-layer laminate to an elastic or nonwoven chassis component. An absorbent pant-type article produced in accordance with the method.
    Type: Application
    Filed: May 11, 2007
    Publication date: December 31, 2009
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: Elisabeth Lakso, Hans Een, Jan Wästlund-Karlsson
  • Publication number: 20090208703
    Abstract: A method for producing an elastically stretchable laminate having at least three layers, the method including the steps of: a) producing a first laminate having a first non-elastic fibrous nonwoven web and an elastic film; b) activating the first laminate by incremental stretching in at least one activation direction to render the first laminate elastically stretchable; c) stretching the activated first laminate to 10-200% in the activation direction; and d) laminating the stretched first laminate to a second non-elastic nonwoven web. An elastically stretchable laminate produced in accordance with the method is also disclosed.
    Type: Application
    Filed: May 12, 2006
    Publication date: August 20, 2009
    Applicant: SCA Hygiene Products AB
    Inventors: Margareta Wennerbäck, Jan Wästlund-Karlsson, Elisabeth Lakso
  • Publication number: 20090048572
    Abstract: A method of production of disposable diaper pants or disposable sanitary panty with openable and resealable side panels. A row of absorption bodies is applied on a continuous web of inner or outer cover sheet material, after which a continuous web of outer or inner cover sheet material is applied and secured to the web with absorption bodies at parts lying outside the absorption bodies to form a web of diaper pants blanks. First side panels having two parts connected by a detachable and resealable connection are secured to the diaper pants blanks at a side of a front or rear portion. Second separate side panels are secured to the side portions of the front or rear portions of the diaper pants blanks which to not have side panels. Individual diaper pants blanks with side panels are cut out, folded along a transverse axis in the crotch, and secured.
    Type: Application
    Filed: August 8, 2008
    Publication date: February 19, 2009
    Applicant: SCA Hygiene Products AB
    Inventors: Birgitta Karlsson, Ken Olsson, Cecile Sandin, Elisabeth Lakso, Anna-Carin Elfstrom, Robert Albino