公开(公告)号：US10604897B2

公开(公告)日：2020-03-31

申请号：US15580936

申请日：2016-02-29

申请人： LENZING AG

发明人： Gisela Goldhalm ,  Thomas Maier ,  Gert Kroner

IPC分类号： D21H11/18 ,  D21H13/08 ,  D21F11/00 ,  D21H21/24 ,  D21H21/56 ,  D21H27/00 ,  D21H27/30 ,  D21H21/20 ,  A47K7/04 ,  D21H11/04

摘要： This invention relates to the use of Lyocell fibers with a tendency to fibrillate for the manufacture of a nonwoven fibrous web material, in particular for the use in a wipe, by using a foam technique.

公开(公告)号：US10597501B2

公开(公告)日：2020-03-24

申请号：US15682851

申请日：2017-08-22

申请人： GPCP IP Holdings LLC

发明人： Daniel W. Sumnicht ,  Thomas Schulze ,  Frank-Gunther Niemz

IPC分类号： C08J5/18 ,  D21H17/00 ,  D21H17/25 ,  D21H17/69 ,  D21H17/36 ,  B29C48/00 ,  D21C5/02 ,  D21H11/14 ,  D21H11/18 ,  D21B1/06 ,  D21B1/08 ,  D06M15/333 ,  D01F1/10 ,  D01F6/14 ,  B29K1/00 ,  B29L31/00 ,  D01D5/40

摘要： The present invention is directed to articles of manufacture, including fibers and films, and methods of making thereof. In accordance with the present invention, the article includes a binder impregnated with or encapsulating a filler. The binder is a polyvinyl alcohol (PVOH), cellulose nanofibrils, or a combination of the PVOH and cellulose nanofibrils. The filler is deinking waste solids comprising ash and cellulose fines.

公开(公告)号：US10577805B2

公开(公告)日：2020-03-03

申请号：US15537039

申请日：2015-12-14

申请人： Stora Enso OYJ

发明人： Isto Heiskanen ,  Duncan Mayes ,  Simo Siitonen

IPC分类号： E04F13/02 ,  C09D101/02 ,  D21H11/18 ,  C04B26/28 ,  D21H27/20 ,  C09D197/02 ,  B05D1/02 ,  D21H27/18

摘要： The present invention relates to a method for applying a wallpaper material onto a surface comprising the steps of providing a liquid suspension comprising cellulosic fibers wherein at least part of said cellulosic fibers comprises microfibrillated cellulose and wherein said liquid suspension has a dry content of at least 10% by weight, applying at least one layer of said liquid suspension onto the surface, drying said liquid suspension layer after it has been applied onto the surface, and thereby forming a dry fiber web layer, wherein said fiber web layer forms said wallpaper material.

公开(公告)号：US20200022538A1

公开(公告)日：2020-01-23

申请号：US16587099

申请日：2019-09-30

申请人： Mercer International Inc.

发明人： Tobias Ziegenbein

IPC分类号： A47K10/16 ,  D21H11/00 ,  B32B21/13 ,  B32B29/00 ,  D21H21/52 ,  B32B23/10 ,  B32B5/26 ,  B32B7/12 ,  D21H27/00 ,  D21H11/18 ,  D21H27/30 ,  D21C9/00 ,  D21H23/76

摘要： An absorbent towel paper web comprising at least one ply is disclosed. The absorbent towel paper web has from about 45% to about 90% by weight of the dry fiber basis of the absorbent towel paper web of a softwood pulp fiber mixture and from about 10% to about 55% by weight of the dry fiber basis of the absorbent towel paper web of a hardwood pulp fiber mixture. The softwood pulp fiber mixture has from about 20% to about 89.9% by weight of the dry fiber basis of the absorbent towel paper web of softwood pulp fibers; from about 0.05% to about 20% by weight of the dry fiber basis of the absorbent towel paper web of cellulose nanofilaments; and, from about 0.05% to about 5.0% by weight of the dry fiber basis of the absorbent towel paper web of strengthening additive.

公开(公告)号：US10513827B2

公开(公告)日：2019-12-24

申请号：US15005468

申请日：2016-01-25

申请人： INTERNATIONAL PAPER COMPANY

发明人： James E. Sealey ,  Michael Hevenor

IPC分类号： D21H17/66 ,  D21H21/24 ,  D21H23/76 ,  D21H21/22 ,  D21H17/06 ,  D21H17/07 ,  D21H17/14 ,  D21H11/18 ,  D21H15/04

摘要： A process is provided for making a fluff pulp sheet, comprising contacting at least one cationic trivalent metal, salt thereof, or combination thereof with a composition comprising fluff pulp fibers and water at a first pH, to form a first mixture; contacting at least one debonder surfactant with the first mixture and raising the pH to a second pH, which is higher than the first pH, to form a fluff pulp mixture; forming a web from the fluff pulp mixture; and drying the web, to make the fluff pulp sheet. A fluff pulp sheet is also provided, comprising a web comprising fluff pulp fibers; at least one cationic trivalent metal, salt thereof, or combination thereof; at least one debonder surfactant; and a fiberization energy of

公开(公告)号：US10463205B2

公开(公告)日：2019-11-05

申请号：US15637015

申请日：2017-06-29

申请人： Mercer International Inc.

发明人： Tobias Ziegenbein

IPC分类号： D21H11/18 ,  D21H21/52 ,  D21H23/76 ,  D21H27/00 ,  D21H27/30 ,  B32B5/26 ,  D21C9/00 ,  A47K10/16 ,  B32B23/10 ,  D21H11/00 ,  B82Y40/00 ,  B82Y99/00

摘要： A process for making absorbent towel paper webs is provided. The process has the steps of (a) providing a papermaking furnish having from about 45% to about 90% by weight of the dry fiber basis of the absorbent towel paper web of a refined softwood pulp fiber mixture having from about 20% to about 89.9% by weight of softwood pulp fiber, from about 0.05% to about 20% by weight of cellulose nanofilaments, and from about 0.05% to about 5.0% by weight of strengthening additive, and from about 10% to about 55% by weight of the dry fiber basis of the absorbent towel paper web of a hardwood pulp fiber mixture; (b) forming a wet fibrous web from the paper making furnish; and, (c) drying the web until the web contains not more than about 10% by weight moisture.

公开(公告)号：US20190309476A1

公开(公告)日：2019-10-10

申请号：US16062710

申请日：2016-12-15

申请人： Kemira Oyj

发明人： Kaisa Karisalmi ,  Tom Lundin ,  Mikko Virtanen ,  Antti Laukkanen ,  Jason McKee

IPC分类号： D21H11/18 ,  D21H17/21 ,  D21H17/33 ,  D21H21/20 ,  D21H11/12

摘要： The invention relates to a method for producing paper, board or the like. The method comprises obtaining a thick stock comprising cellulose fibres, forming a fibrous web and drying of drying the fibrous web. A strength agent system, which comprises at least one synthetic or natural polymer, or their mixture, and microfibrillated parenchymal cellulose material originating from non-wood sources, is added to the thick stock. The invention relates also to paper or board produced by the method.

公开(公告)号：US20190300677A1

公开(公告)日：2019-10-03

申请号：US16290990

申请日：2019-03-04

申请人： Kemira Oyj

发明人： Kerstin Malmborg ,  Anette Monica Heijnesson-Hultén ,  John Sandström

IPC分类号： C08K7/02 ,  D21H11/18 ,  D21H17/36 ,  D21H21/14 ,  B32B27/10

摘要： A composition is provided comprising a) cellulose fibres having a number average length of from 0.001 to 0.5 mm and a specific surface area of from 1 to 100 m2/g; b) an at least partially hydrolysed vinyl acetate polymer; and c) at least one anionic polymer. The composition is useful in providing self-supporting films or coating layers for providing barriers to permeable substrates.

公开(公告)号：US20190276619A1

公开(公告)日：2019-09-12

申请号：US16345994

申请日：2017-10-31

申请人： Stora Enso OYJ

发明人： Esa Saukkonen ,  Isto Heiskanen ,  Kaj Backfolk ,  Ville Ribu

IPC分类号： C08J5/18 ,  D21H11/18 ,  D21H25/04

摘要： A method of forming a film comprising nanocellulose having an Oxygen Transmission Rate (OTR) value in the range of 0.1 to 300 cc/m2/24 h at 38° C. and 85% relative humidity (RH), and having a basis weight in the range of in the range of 0.1 to 45 g/m2 wherein the method comprises the steps of; providing a suspension comprising nanocellulose, forming at least one layer of a web or a film from said suspension; drying said formed web or film to a dry content of at least 65 weight-%, wherein said method further comprises the steps of; treating at least one side of said dewatered and dried web or film with ultra violet (UV) or electron beam (EB) irradiation; and wherein at least one cooling step is provided in connection with or after the UV or EB treatment step.

公开(公告)号：US20190264394A1

公开(公告)日：2019-08-29

申请号：US16345348

申请日：2017-10-27

申请人： Stora Enso OYJ

发明人： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen

IPC分类号： D21H11/18 ,  D21H21/06 ,  D21H23/04

摘要： The invention discloses a method to enable the efficient use of surfactants in web forming of a cellulose containing material, e.g. in the making of paper or paperboard. The method comprises the addition of microfibrillated cellulose (MFC) or nanocrystalline cellulose (NCC) to the white water in a web-forming process in order to form complexes with surface active agents. The formed complexes are at least partly recycled to the process. This enables the producer to have control over the concentration of surface active agents in the system.