Patents by Inventor Anna Nihlstrand
Anna Nihlstrand 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).
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Patent number: 11801173Abstract: An absorbent hygienic article for absorbing body fluids, the article including a liquid absorbent top layer and a backing layer, the top layer and the backing layer being made from roll materials and being joined together. The top layer is constituted by a cellulosic fibrous web, the fibres in the cellulosic fibrous web being constituted by a mixture of cellulose fibres, the mixture including regenerated cellulose fibres or natural cellulose staple fibres and cellulose pulp fibres, the cellulosic fibrous web being a foam-formed, hydroentangled cellulosic fibrous web.Type: GrantFiled: December 20, 2019Date of Patent: October 31, 2023Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAGInventors: Anna Bagger-Sjöbäck, Magdalena Hörle, Philip Blomström, Lars Fingal, Anna Nihlstrand
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Publication number: 20230212799Abstract: A method for consolidating a fibrous material of plant-based fibers, such as cellulose fibers and/or poly-lactic acid fibers, the method including: applying to the fibrous material an aqueous solution including a cellulose derivative, and/or a salt thereof, and an acid, the aqueous solution having a pH within the range of from 3 to 7, optionally within the range of from 3 to 6, optionally within the range of from 3 to 4.5; and drying the bonded fibrous material, optionally at 100° C. or higher. Also, a fibrous material formed by the method, an aqueous binder solution including a cellulose derivative, and/or a salt thereof, and an acid, and a nonwoven material including airlaid plant-based fibers being consolidated by a bio-based binder in the presence of a carboxylic acid, the bio-based binder being a cellulose derivative, and/or a salt thereof.Type: ApplicationFiled: June 1, 2021Publication date: July 6, 2023Applicant: Essity Hygiene and Health AktiebolagInventors: Andrea NODBRANDT, Anna NIHLSTRAND, Daniel HAGBERG, Véronique WISS
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Patent number: 11672709Abstract: Absorbent product includes a nonwoven material arranged to be in contact with skin of a user during use of the absorbent product. The nonwoven material includes non-absorbent and/or absorbent fibres. The fibres, at least on a surface arranged to be in contact with skin of a user during use of the absorbent product, have a coarseness of from 0.1 to 10 dtex, or from 0.5 to 7 dtex. The fibres and/or the nonwoven material is coated with a lubricating coating composition suitable for use in absorbent and/or hygiene products at least on a surface arranged to be in contact with skin of a user during use of the absorbent product. By the product including the nonwoven, wet friction can be reduced between the nonwoven and the skin of the user.Type: GrantFiled: January 14, 2015Date of Patent: June 13, 2023Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAGInventors: Maria Fernkvist, Shabira Abbas, Anna Nihlstrand
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Publication number: 20230136549Abstract: An absorbent hygienic article for absorbing body fluids, the article including a liquid absorbent top layer and a backing layer, the top layer and the backing layer being made from roll materials and being joined together. The top layer is constituted by a cellulosic fibrous web, the fibres in the cellulosic fibrous web being constituted by a mixture of cellulose fibres, the mixture including regenerated cellulose fibres or natural cellulose staple fibres and cellulose pulp fibres, the cellulosic fibrous web being a foam-formed, hydroentangled cellulosic fibrous web.Type: ApplicationFiled: December 20, 2019Publication date: May 4, 2023Applicant: Essity Hygiene and Health AktiebolagInventors: Anna BAGGER-SJÖBÄCK, Magdalena HÖRLE, Philip BLOMSTRÖM, Lars FINGAL, Anna NIHLSTRAND
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Patent number: 11602466Abstract: An absorbent hygienic article for absorbing body fluids, the article including a liquid permeable topsheet, a backing layer and an absorbent core arranged between the topsheet and the backing layer, the topsheet and the backing layer being made from roll materials. The topsheet or an absorbent layer in the absorbent core is constituted by a cellulosic fibrous web, the fibres in the cellulosic fibrous web being constituted by a mixture of cellulose fibres including regenerated cellulose fibres or natural cellulose staple fibres and cellulose pulp fibres, the cellulosic fibrous web being a foam-formed, hydroentangled fibrous web.Type: GrantFiled: December 20, 2019Date of Patent: March 14, 2023Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAGInventors: Anna Bagger-Sjöbäck, Magdalena Hörle, Philip Blomström, Lars Fingal, Anna Nihlstrand
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Publication number: 20230042528Abstract: An absorbent hygienic article for absorbing body fluids, the article including a liquid permeable topsheet, a backing layer and an absorbent core arranged between the topsheet and the backing layer, the topsheet and the backing layer being made from roll materials. The topsheet or an absorbent layer in the absorbent core is constituted by a cellulosic fibrous web, the fibres in the cellulosic fibrous web being constituted by a mixture of cellulose fibres including regenerated cellulose fibres or natural cellulose staple fibres and cellulose pulp fibres, the cellulosic fibrous web being a foam-formed, hydroentangled fibrous web.Type: ApplicationFiled: December 20, 2019Publication date: February 9, 2023Applicant: Essity Hygiene and Health AktiebolagInventors: Anna BAGGER-SJÖBÄCK, Magdalena HÖRLE, Philip BLOMSTRÖM, Lars FINGAL, Anna NIHLSTRAND
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Publication number: 20230028309Abstract: The present disclosure relates to an absorbent fibrous web, in which the fibres are constituted by cellulosic fibres including cellulosic staple fibres and cellulose pulp fibres and the absorbent fibrous web is a foam-formed hydro-entangled fibrous web. The present disclosure further relates to a method of manufacturing such an absorbent fibrous web.Type: ApplicationFiled: December 2, 2020Publication date: January 26, 2023Applicant: Essity Hygiene and Health AktiebolagInventors: Joraine RÖSSLER, Anna NIHLSTRAND, Lars FINGAL
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Patent number: 11214902Abstract: An absorbent material, such as a non-woven web or a tissue paper, includes continuous filaments and short fibers, the short fibers including natural and/or synthetic fibers or staple fibers. The absorbent material exhibits an absorbency speed of equal to or less than 2 s and a weight loss when washed of equal to or less than 5%. The absorbent material can be incorporated into a wipe.Type: GrantFiled: November 20, 2015Date of Patent: January 4, 2022Assignee: Essity Hygiene and Health AktiebolagInventors: Maria Bogren, Lars Fingal, Anna Nihlstrand
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Patent number: 11207441Abstract: A fibrous structure exhibits an absorbency time of equal to or less than 1.5 s and exhibits an antimicrobial effect.Type: GrantFiled: November 20, 2015Date of Patent: December 28, 2021Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAGInventors: Hannu Ahoniemi, Lars Fingal, Ulrika Husmark, Kent Malmgren, Anna Nihlstrand
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Publication number: 20210198823Abstract: An absorbent material, such as a non-woven web or a tissue paper, includes continuous filaments and short fibers, the short fibers including natural and/or synthetic fibers or staple fibers. The absorbent material exhibits an absorbency speed of equal to or less than 2 s and a weight loss when washed of equal to or less than 5%. The absorbent material can be incorporated into a wipe.Type: ApplicationFiled: November 20, 2015Publication date: July 1, 2021Applicant: Essity Hygiene and Health AktiebolagInventors: Maria BOGREN, Lars FINGAL, Anna NIHLSTRAND
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Publication number: 20200254135Abstract: A fibrous structure exhibits an absorbency time of equal to or less than 1.5 s and exhibits an antimicrobial effect.Type: ApplicationFiled: November 20, 2015Publication date: August 13, 2020Applicant: ESSITY HYGIENE AND HEALTH AKTIEBOLAGInventors: Hannu AHONIEMI, Lars FINGAL, Ulrika HUSMARK, Kent MALMGREN, Anna NIHLSTRAND
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Publication number: 20180028372Abstract: Absorbent product includes a nonwoven material arranged to be in contact with skin of a user during use of the absorbent product. The nonwoven material includes non-absorbent and/or absorbent fibres. The fibres, at least on a surface arranged to be in contact with skin of a user during use of the absorbent product, have a coarseness of from 0.1 to 10 dtex, or from 0.5 to 7 dtex. The fibres and/or the nonwoven material is coated with a lubricating coating composition suitable for use in absorbent and/or hygiene products at least on a surface arranged to be in contact with skin of a user during use of the absorbent product. By the product including the nonwoven, wet friction can be reduced between the nonwoven and the skin of the user.Type: ApplicationFiled: January 14, 2015Publication date: February 1, 2018Applicant: SCA Hygiene Products ABInventors: Maria FERNKVIST, Shabira ABBAS, Anna NIHLSTRAND
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Publication number: 20170367906Abstract: An absorbent product includes a nonwoven material arranged to be in contact with skin of a user during use of the absorbent product. The nonwoven material includes, at least on a skin contacting surface, a mixture of non-absorbent and absorbent fibres. The absorbent fibres are present in an amount of 2-30% by weight, or about 2-10% by weight, based on the total weight of the fibres in the nonwoven material. The non-absorbent fibres have a coarseness of 1.8 to 10 dtex and the absorbent fibres have a coarseness of 1 to 10. Also disclosed is a use of a nonwoven material in an absorbent product to reduce wet friction between the nonwoven and skin of a user.Type: ApplicationFiled: January 14, 2015Publication date: December 28, 2017Applicant: SCA Hygiene Products ABInventors: Shabira ABBAS, Maria FERNKVIST, Anna NIHLSTRAND
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Patent number: 9725633Abstract: A multi-component fiber includes at least two elongated fiber bodies. A first fiber body consists of a first material including a phase change material and a second fiber body consists of a second material and encloses the first fiber body. The phase change material is non-encapsulated or in raw form and the first material includes a viscosity modifier selected from polyolefines having a density in the range of 890-970 kg/m3 as measured at room temperature according to ISO 1183-2 and a melt flow rate in the range 0.1-60 g/10 minutes as measured at 190° C. with a 21.6 kg weight according to ISO 1133. Further, a textile, a fabric and an absorbent article include the multi-component fiber.Type: GrantFiled: September 3, 2007Date of Patent: August 8, 2017Assignee: SCA HYGIENE PRODUCTS ABInventors: Anna Nihlstrand, Inge Gabrielii, Bengt Hagström
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Publication number: 20170027392Abstract: A flushable wipe or hygiene tissue includes a hydraulically entangled nonwoven material impregnated with a wetting composition, wherein the nonwoven material includes cellulose pulp fibers and/or manmade staple fibers. The nonwoven material includes disintegration elements having a projected surface area between 2 and 50 mm2 and an aspect ratio (L/D) between 1 and 10. The disintegration elements may be selected from the following group: botanical elements, paper containing a wet-strength agent, nonwoven material, and film material, and will result in a material that is more readily disintegratable when flushed in a sewer.Type: ApplicationFiled: April 8, 2014Publication date: February 2, 2017Inventors: Anders STRÅLIN, Hannu AHONIEMI, Lars FINGAL, Anna NIHLSTRAND
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Patent number: 9445951Abstract: An absorbent article, such as a diaper, pant diaper, incontinence garment, incontinence insert, bed protecting sheet or the like intended to absorb and retain body exudates which may include low viscosity fecal materials. The article has an absorbent core (5) and a cover enclosing the absorbent core, the cover having a liquid pervious inner cover (6) on the body facing side of the absorbent core and a liquid impervious cover (7) on the garment facing side of the absorbent core, wherein the inner cover (6) in at least a fecal receiving area has parts of the rear and crotch portions (3, 4) of the article has a three-dimensionally structured hydrophilic fibrous web material (12) having on the body facing surface a plurality of alternating recessed (13) and elevated portions (14), wherein the recessed as well as the elevated portions are hydrophilic.Type: GrantFiled: June 28, 2007Date of Patent: September 20, 2016Assignee: SCA HYGIENE PRODUCTS ABInventors: Barbro Moberg-Alehammar, Anna Nihlstrand
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Patent number: 8575418Abstract: An absorbent article, such as a diaper, sanitary napkin, incontinence guard or panty liner, including a fluid-permeable nonwoven topsheet located on the wearer-facing side thereof. The nonwoven topsheet includes a plurality of channels arranged side-by-side. The channels are located within the nonwoven topsheet, whereby gas is allowed to pass into, out of and along the channels, thus providing ventilation of the absorbent article.Type: GrantFiled: December 21, 2007Date of Patent: November 5, 2013Assignee: SCA Hygiene Products ABInventors: Inge Gabrielii, Anna Nihlstrand
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Publication number: 20110027568Abstract: A multi-component fibre includes at least two elongated fibre bodies. A first fibre body consists of a first material including a phase change material and a second fibre body consists of a second material and encloses the first fibre body. The phase change material is non-encapsulated or in raw form and the first material includes a viscosity modifier selected from polyolefines having a density in the range of 890-970 kg/m3 as measured at room temperature according to ISO 1183-2 and a melt flow rate in the range 0.1-60 g/10 minutes as measured at 190° C. with a 21.6 kg weight according to ISO 1133. Further, a textile, a fabric and an absorbent article include the multi-component fibre.Type: ApplicationFiled: September 3, 2007Publication date: February 3, 2011Applicant: SCA Hygiene Products ABInventors: Anna Nihlstrand, Inge Gabrielii, Bengt Hagström
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Publication number: 20100305536Abstract: The invention relates to an absorbent structure (3) for use in an absorbent article (1) and being defined by an airlaid material structure (3) being formed by a plurality of layers (3a; 3b; 3c; 3d) which are interposed between a liquid-permeable top sheet (2) and an absorbent core (4), said absorbent article (1) also comprising a backsheet (5) being of liquid-impermeable material. According to the invention, the absorbent structure (3) comprises a first layer (3a) having resilient synthetic fibers of at least approximately 5 dtex; that the absorbent structure (3) comprises a second layer (3b) having superabsorbent particles generally arranged as a distinct layer as opposed to being integrated within any other material of said absorbent structure (3); and that the absorbent structure (3) also comprises a treated fluff material having hydrophilic properties.Type: ApplicationFiled: July 6, 2007Publication date: December 2, 2010Applicant: SCA Hygiene Products ABInventors: Maria Fernkvist, Anna Nihlstrand, Maryam Tondkar, Shadi Ståhl, Malin Gullholm
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Publication number: 20100274208Abstract: An absorbent article, such as a diaper, sanitary napkin, incontinence guard or panty liner, including a fluid-permeable nonwoven topsheet located on the wearer-facing side thereof. The nonwoven topsheet includes a plurality of channels arranged side-by-side. The channels are located within the nonwoven topsheet, whereby gas is allowed to pass into, out of and along the channels, thus providing ventilation of the absorbent article.Type: ApplicationFiled: December 21, 2007Publication date: October 28, 2010Applicant: SCA Hygiene Products ABInventors: Inge Gabrielii, Anna Nihlstrand