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公开(公告)号：US20240102249A1
公开(公告)日：2024-03-28
申请号：US18216267
申请日：2023-06-29
发明人： Per SVENDING , Jonathan Stuart PHIPPS , Johannes KRITZINGER , Tom REEVE-LARSON , Tania SELINA , David SKUSE
IPC分类号： D21H27/32 , D21H11/04 , D21H11/14 , D21H11/18 , D21H17/28 , D21H17/67 , D21H17/68 , D21H19/52 , D21H21/10
CPC分类号： D21H27/32 , D21H11/04 , D21H11/14 , D21H11/18 , D21H17/28 , D21H17/67 , D21H17/675 , D21H17/68 , D21H19/52 , D21H21/10
摘要： The present invention is directed to products, such as paper and paperboard products, comprising a substrate containing cellulose and top ply comprising microfibrillated cellulose and inorganic particulate, to methods of making such paper and paperboard products, and associated uses of such paper and paperboard products. The microfibrillated cellulose and inorganic particulate material are applied at the stage when the wet substrate is in the process of being formed on the wire of a papermaking machine, thereby avoiding the additional cost of more extensive equipment and machinery as well as in separate drying of a coating. The microfibrillated cellulose facilitates the application of inorganic particulate onto the surface of a wet paper or paperboard substrate when applied thusly, by trapping the inorganic particulate on the surface of the substrate and by giving the composite sufficient strength and a suitable pore structure to make it suitable for printing and other end-use demands.
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公开(公告)号：US20190127920A1
公开(公告)日：2019-05-02
申请号：US16233458
申请日：2018-12-27
发明人： Per Svending , Jonathan Stuart PHIPPS , Johannes KRITZINGER , Tom LARSON , Tania SELINA , David SKUSE
IPC分类号： D21H27/32 , D21H19/52 , D21H17/67 , D21H11/14 , D21H11/18 , D21H11/04 , D21H17/68 , D21H21/10 , D21H17/28
摘要： The present invention is directed to products, such as paper and paperboard products, comprising a substrate containing cellulose and top ply comprising microfibrillated cellulose and inorganic particulate, to methods of making such paper and paperboard products, and associated uses of such paper and paperboard products. The microfibrillated cellulose and inorganic particulate material are applied at the stage when the wet substrate is in the process of being formed on the wire of a papermaking machine, thereby avoiding the additional cost of more extensive equipment and machinery as well as in separate drying of a coating. The microfibrillated cellulose facilitates the application of inorganic particulate onto the surface of a wet paper or paperboard substrate when applied thusly, by trapping the inorganic particulate on the surface of the substrate and by giving the composite sufficient strength and a suitable pore structure to make it suitable for printing and other end-use demands.
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公开(公告)号：US20230295881A1
公开(公告)日：2023-09-21
申请号：US18123573
申请日：2023-03-20
发明人： Jonathan PHIPPS , Camery MA , Johannes KRITZINGER , Abigail RULE
摘要： A three dimensional molded object comprising a mixture of cellulose fibers and microfibrillated cellulose, and optionally one or more inorganic particulate material, wherein the microfibrillated cellulose is present in an amount of about 0.5 wt. % to about 50 wt. % on a dry weight basis of the total dry mass of the mixture of cellulose fibres and microfibrillated cellulose, and optionally one or more inorganic particulate material; wherein the coarsely microfibrillated cellulose comprises less than about 90 wt. % fines and/or less than 75% fines A, and a length-weighted median length Lc(w) of greater than 0.3 mm, as measured by fibre image analyzer, and wherein the microfibrillated cellulose optionally has a fibre steepness of about 20 to about 50, as measured by Malvern Mastersizer.
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公开(公告)号：US20220154408A1
公开(公告)日：2022-05-19
申请号：US17590105
申请日：2022-02-01
发明人： Per SVENDING , Jonathan Stuart PHIPPS , Johannes KRITZINGER , Tom REEVE-LARSON , Tania SELINA , David SKUSE
IPC分类号： D21H27/32 , D21H19/52 , D21H11/04 , D21H11/14 , D21H11/18 , D21H17/28 , D21H17/67 , D21H17/68 , D21H21/10
摘要： The present invention is directed to products, such as paper and paperboard products, comprising a substrate containing cellulose and top ply comprising microfibrillated cellulose and inorganic particulate, to methods of making such paper and paperboard products, and associated uses of such paper and paperboard products. The microfibrillated cellulose and inorganic particulate material are applied at the stage when the wet substrate is in the process of being formed on the wire of a papermaking machine, thereby avoiding the additional cost of more extensive equipment and machinery as well as in separate drying of a coating. The microfibrillated cellulose facilitates the application of inorganic particulate onto the surface of a wet paper or paperboard substrate when applied thusly, by trapping the inorganic particulate on the surface of the substrate and by giving the composite sufficient strength and a suitable pore structure to make it suitable for printing and other end-use demands.
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