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公开(公告)号：US20240360253A1
公开(公告)日：2024-10-31
申请号：US18688022
申请日：2022-09-21
Applicant: KEMIRA OYJ
Inventor： Asko KARPPI , Matti HIETANIEMI , Giorgio VANZETTI , Jonas KONN , Tomi KEMPAS
CPC classification number: C08F8/28 , D21H17/455 , D21H21/18 , C08F2810/10
Abstract: Method for on-site glyoxylation of polyacrylamide in paper mill, board mill or the like is disclosed. Discontinuous batch glyoxylation reaction of aqueous reaction mixture is performed. The method comprises forming or obtaining the aqueous reaction mixture having a start viscosity and comprising polyacrylamide base polymer having weight average molecular weight of 30 000-300 000 g/mol and glyoxal. Concentration of the polyacrylamide base polymer in the reaction mixture is 1.5-8% above a Critical Concentration of the polyacrylamide base polymer. A feed of an alkali is added to the reaction mixture while measuring viscosity of the reaction mixture and/or a process variable related to the viscosity of the reaction mixture and the on-site glyoxylation reaction of polyacrylamide base polymer in the reaction mixture is allowed to proceed. When a predetermined end viscosity value is attained the feed of alkali is ended and acid is added to the reaction mixture.
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公开(公告)号：US20240200270A1
公开(公告)日：2024-06-20
申请号：US18555480
申请日：2022-04-13
Applicant: SPCM SA
Inventor： Cyril BARRIERE , Gatien FAUCHER , Bastien MARTEL
IPC: D21H17/37 , C08F120/56 , D21H21/10 , D21H21/18 , D21H23/04
CPC classification number: D21H17/375 , C08F120/56 , D21H21/10 , D21H21/18 , D21H23/04 , C08F2810/00
Abstract: A method for producing a sheet of paper or cardboard from a fibrous suspension includes injection of a polymer P2 into a suspension of cellulosic fibers, forming of a sheet of paper or cardboard, and drying of the sheet of paper or cardboard. The polymer P2 is prepared, before the injection, from a water-soluble polymer P1 in inverse emulsion form. P1 consists of at least one nonionic monomer selected from acrylamide, methacrylamide, N,N-dimethylacrylamide, and acrylonitrile. The polymer P1 is subjected to a reaction Re to yield a polymer P2. The reaction Re includes adding the polymer P1 in inverse emulsion form to an aqueous solution M1 of an alkali hydroxide and/or an alkaline earth hydroxide, and an alkali hypohalide and/or an alkaline earth hypohalide, prior to a reaction time of 10 seconds to 5 hours.
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公开(公告)号：US20240175209A1
公开(公告)日：2024-05-30
申请号：US18435210
申请日：2024-02-07
Applicant: Kimberly-Clark Worldwide, Inc.
Inventor： Aisan Khodaei
CPC classification number: D21F11/002 , D21F1/66 , D21F9/00 , D21H13/08 , D21H21/18 , D21H21/56 , D21H27/002
Abstract: A method and system are disclosed for actively cooling a fluid, particularly a foamed fluid. The foamed fluid may comprise a foamed suspension of fibers that is used to form a web. The foamed suspension of fibers is fed around a recirculation loop and actively cooled using a heat exchanger.
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公开(公告)号：US11959226B2
公开(公告)日：2024-04-16
申请号：US17121862
申请日：2020-12-15
Applicant: First Quality Tissue, LLC
Inventor： Byrd Tyler Miller, IV , Justin S. Pence , James E. Sealey
IPC: D21H27/00 , D21H11/00 , D21H11/12 , D21H17/28 , D21H17/37 , D21H21/14 , D21H21/18 , D21H21/20 , D21H21/22 , D21H21/24 , D21H21/28 , D21H27/30 , D21H27/40
CPC classification number: D21H27/005 , D21H5/14 , D21H11/12 , D21H17/28 , D21H17/375 , D21H21/14 , D21H21/18 , D21H21/20 , D21H21/22 , D21H21/24 , D21H21/28 , D21H27/002 , D21H27/30 , D21H27/40
Abstract: A structured rolled sanitary tissue product having at least two plies, wherein the structured rolled sanitary tissue product has a crumple resistance of less than 30 grams force, a caliper of at least 450 microns/ply, and a bulk softness (TS7) of 10 or less.
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公开(公告)号：US11859348B2
公开(公告)日：2024-01-02
申请号：US17809019
申请日：2022-06-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Masahide Nakamura
Abstract: There is provided a fiber body manufacturing method including an accumulating step of forming the web by accumulating a material containing fibers and starch or dextrin on the first transport belt by a dry method; a transport step of transporting the web by peeling off a first surface of the web from the first transport belt, and by bringing a second surface of the web, which is a surface opposite to the first surface peeled off from the first transport belt, into contact with the second transport belt; a water-applying step of applying the water to the web which is in contact with the first transport belt or the second transport belt; and a heating step of heating the web by bringing the heating section into contact with the web peeled off from the second transport belt, and forming a fiber body by binding the fibers with the starch or dextrin, in which the web peeled off from the second transport belt is directly supplied to the heating section.
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Patent Agency Ranking
公开(公告)号：US20230416991A1
公开(公告)日：2023-12-28
申请号：US18036961
申请日：2021-11-24
Applicant: ACTEGA DS GMBH
Inventor： Anna Maier , Jane Oeljeschläger
Abstract: The invention relates to a fiber preparation treated with an aqueous polyolefin dispersion having a pH value from 7.5-9.4 containing a. from 50 to 100 wt. % of an aqueous dispersion A comprising the following ingredients: i. from 41 to 98 wt. % of A1, a copolymer of ethylene and (meth)acrylic acid having a content of (meth)acrylic based groups of at least 14 wt. % based on the total weight of the copolymer or a mixture of different copolymers of ethylene and (meth)acrylic acid each having a content of (meth)acrylic based groups of at least 14 wt. % based on the total weight of the copolymer, ii. from 1 to 59 wt. % of A2, another olefinic structure units containing hydrocarbon polymer, or a mixture of other olefinic structure units containing hydrocarbonpolymers, and iii. from 0-35 wt. % of additive different from A1 and A2, b. from 0 to 50 wt. % of a compound B, where compound B is a material dispersible or soluble in water and different from any of the ingredients of dispersion A wherein —the wt. % of A and B is based on the solid content of the whole aqueous polyolefin dispersion, —the wt. % of the ingredients of dispersion A is based on the solid content of dispersion A, —the sum of the wt. % of ingredients i to iii of dispersion A is 100%.
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公开(公告)号：US11807992B2
公开(公告)日：2023-11-07
申请号：US17121879
申请日：2020-12-15
Applicant: First Quality Tissue, LLC
Inventor： Byrd Tyler Miller, IV , Justin S. Pence , James E. Sealey
IPC: D21H27/00 , D21H11/00 , D21H27/40 , D21H21/24 , D21H21/20 , D21H21/18 , D21H21/14 , D21H17/28 , D21H17/37 , D21H27/30 , D21H21/22 , D21H21/28 , D21H11/12
CPC classification number: D21H27/005 , D21H5/14 , D21H11/12 , D21H17/28 , D21H17/375 , D21H21/14 , D21H21/18 , D21H21/20 , D21H21/22 , D21H21/24 , D21H21/28 , D21H27/002 , D21H27/30 , D21H27/40
Abstract: A structured rolled sanitary tissue product having at least two plies, wherein the structured rolled sanitary tissue product has a crumple resistance of less than 30 grams force, a caliper of at least 450 microns/ply, and a bulk softness (TS7) of 10 or less.
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公开(公告)号：US11802377B2
公开(公告)日：2023-10-31
申请号：US17405090
申请日：2021-08-18
Applicant: SEIKO EPSON CORPORATION
Inventor： Masahiko Nakazawa , Shigemi Wakabayashi , Yoshihiro Ueno , Naotaka Higuchi , Hiroki Kurata , Shunichi Seki
Abstract: A fibrous body manufacturing method includes: a first supplying step of supplying a first raw material containing a first fiber group; a second supplying step of supplying a second raw material containing a second fiber group and a binder, the second fiber group having a length-average fiber length not less than a length-average fiber length of the first fiber group, the binder being configured to bond fibers together; a forming step of forming a first deposited material by depositing a first mixed material containing the first raw material and the second raw material; and a bonding step of bonding first fibers of the first fiber group and second fibers of the second fiber group that are contained in the first deposited material together using the binder to form a first fibrous body.
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公开(公告)号：US20230332357A1
公开(公告)日：2023-10-19
申请号：US18002157
申请日：2021-06-18
Applicant: Archer Daniels Midland Company
Inventor： Ali Ayoub , Baljit Ghotra , Darrell V. Chenault , Alexandra Sanborn
Abstract: A method of preparing a non-wood fiber paper strengthening product is disclosed. The method comprises placing an additive in an aqueous alkaline medium, wherein the additive comprises a hydroxycarboxylic acid, and mixing a non-wood fiber material with the placed additive in the aqueous alkaline medium to form a mixture, wherein the non-wood fiber material comprises starch, protein and fiber, wherein the additive, starch, protein, and fiber of the non-wood fiber material, and metal ions of the alkaline medium become physically crosslinked resulting in a non-wood fiber paper strengthening product. In an aspect, the non-wood fiber paper strengthening product is used in making a paper product wherein the paper product has greater strength than the same paper product made with native starch or chemically modified starch instead of the non-wood fiber paper strengthening product.
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公开(公告)号：US20230313462A1
公开(公告)日：2023-10-05
申请号：US18193694
申请日：2023-03-31
Applicant: SOLENIS TECHNOLOGIES, L.P.
Inventor： Matthew Nicholas , Terry Lynn Bliss , Tiffany Bohnsack
CPC classification number: D21G9/0045 , G01N1/42 , D21H23/66 , D21H21/18 , G01N2001/2873
Abstract: Methods of analyzing a sheet of paper, and methods of preparing paper are provided. In an exemplary embodiment, a method for preparing paper includes applying a paper additive to a first sheet of paper using an initial production technique. The first sheet of paper is sectioned into a first section and a second section, where the first sheet of paper has a top surface defined in an X-Y plane, where a Z axis is perpendicular to the X-Y plane, and where the first and second sections are defined at different positions along the Z axis. A paper additive concentration is measured in the first and second sections, and the initial production technique is adjusted to a subsequent production technique to influence a paper additive concentration profile along the Z axis.
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