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公开(公告)号:US10463205B2
公开(公告)日:2019-11-05
申请号:US15637015
申请日:2017-06-29
Applicant: Mercer International Inc.
Inventor: Tobias Ziegenbein
IPC: D21H11/18 , D21H21/52 , D21H23/76 , D21H27/00 , D21H27/30 , B32B5/26 , D21C9/00 , A47K10/16 , B32B23/10 , D21H11/00 , B82Y40/00 , B82Y99/00
Abstract: 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.
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公开(公告)号:US20180078099A1
公开(公告)日:2018-03-22
申请号:US15637015
申请日:2017-06-29
Applicant: Mercer International Inc.
Inventor: Tobias Ziegenbein
Abstract: A process for making absorbent towel paper webs comprising the steps of (a) providing a papermaking furnish comprising i) from about 45% to about 90% by weight of the dry fiber basis of the tissue towel paper web of a refined softwood pulp fiber mixture comprising u.) from about 20% to about 89.9% by weight of the dry fiber basis of the absorbent towel paper web of softwood pulp fiber, wherein the softwood pulp fiber is optionally refined before being added to the mixture; v.) from about 0.05% to about 20% by weight of the dry fiber basis of the absorbent towel paper web of cellulose nanofilaments x.) from about 0.05% to about 5.0% by weight of the dry fiber basis of the absorbent towel paper web of strengthening additive, ii) 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; iii) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of a fibrillated manmade cellulose; and iv) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-wood natural fibers v) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-cellulosic fibers; and (b) forming a wet fibrous web from said paper making furnish; (c) drying said web until said web contains not more than about 10% by weight moisture.
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公开(公告)号:US20180002502A1
公开(公告)日:2018-01-04
申请号:US15637048
申请日:2017-06-29
Applicant: Mercer International Inc.
Inventor: Tobias Ziegenbein
Abstract: Processes for making absorbent towel paper webs comprising the steps of (a) providing a papermaking furnish comprising: i) from about 45% to about 90% by weight of the dry fiber basis of the tissue towel paper web of a refined softwood pulp fiber mixture comprising: u.) from about 20.0% to about 88.5% by weight of the dry fiber basis of the absorbent towel paper web of softwood pulp fiber, wherein the softwood pulp fiber is optionally refined before being added to the mixture; v.) from about 0.05% to about 5.0% by weight of the dry fiber basis of the absorbent towel paper web of strengthening additive, ii) 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 comprising; y.) from about 9.9% to about 54.9% by weight of the dry fiber basis of the absorbent towel paper web of hardwood pulp fibers; and z.) from about 0.05% to about 20.0% by weight of the dry fiber basis of the absorbent towel paper web of cellulose nanofilaments; iii) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of a fibrillated manmade cellulose; and iv) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-wood natural fibers; v) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-cellulosic fibers; and (b) forming a wet fibrous web from said paper making furnish; (c) drying said web until said web contains not more than about 10% by weight moisture.
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公开(公告)号:US11674267B2
公开(公告)日:2023-06-13
申请号:US16865950
申请日:2020-05-04
Applicant: Mercer International Inc.
Inventor: Tobias Ziegenbein
IPC: D21H27/30 , D21H11/08 , D21H11/18 , D21H15/02 , D21H27/00 , D21F11/14 , D21H11/02 , D21H17/44 , D21H21/20 , B32B29/00
CPC classification number: D21H27/30 , B32B29/005 , D21F11/14 , D21H11/02 , D21H11/08 , D21H11/18 , D21H15/02 , D21H17/44 , D21H21/20 , D21H27/002 , D21H27/005 , B32B2250/02 , B32B2307/54 , B32B2317/12 , B32B2554/00
Abstract: A differential density paper product comprising at least one paper web is disclosed. The paper product has: (a) from about 20% to about 90% by weight of the dry fiber basis of the paper product of a refined soft wood pulp fiber mixture, (b) pulp fibers selected from the group consisting of hard wood fibers, non-wood fibers, recycled fibers, synthetic polymer fibers, bleached eucalyptus kraft fibers, and combinations thereof; and, (c) not more than about 10% by weight moisture.
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公开(公告)号:US11668053B2
公开(公告)日:2023-06-06
申请号:US16865887
申请日:2020-05-04
Applicant: Mercer International Inc.
Inventor: Tobias Ziegenbein
IPC: D21H27/30 , D21H11/08 , D21H11/18 , D21H15/02 , D21H27/00 , D21F11/14 , D21H11/02 , D21H17/44 , D21H21/20 , B32B29/00
CPC classification number: D21H27/30 , B32B29/005 , D21F11/14 , D21H11/02 , D21H11/08 , D21H11/18 , D21H15/02 , D21H17/44 , D21H21/20 , D21H27/002 , D21H27/005 , B32B2250/02 , B32B2307/54 , B32B2317/12 , B32B2554/00
Abstract: The present disclosure provides for a paper product. The paper product has: (a) from about 20% to about 90% by weight of the dry fiber basis of the paper product of a refined soft wood pulp fiber mixture, (b) pulp fibers selected from the group consisting of hard wood fibers, non-wood fibers, recycled fibers, synthetic polymer fibers, bleached eucalyptus kraft fibers, and combinations thereof; and, (c) not more than about 10% by weight moisture.
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16.
公开(公告)号:US11111344B2
公开(公告)日:2021-09-07
申请号:US16587163
申请日:2019-09-30
Applicant: Mercer International Inc.
Inventor: Tobias Ziegenbein
IPC: D21H27/34 , D21H27/30 , D21H21/18 , D21H15/06 , D21H11/18 , D21H11/00 , D21H11/04 , D21H11/20 , D21H13/02 , D21H17/25 , D21H21/20 , D21H27/00 , C08J5/18 , C08L1/06
Abstract: Processes for making absorbent towel paper and soft sanitary tissue paper webs are provided. The processes provide the steps of: (a) providing a papermaking furnish, (b) forming a wet fibrous web having a differential density from the paper making furnish; and, (c) drying the differential density wet fibrous web to not more than about 10% by weight moisture. Step a) provides: i) from about 20.1% to about 99.9% by weight of a softwood pulp fiber mixture; and, ii) from greater than 0% to about 79.9% by weight of a hardwood pulp fiber mixture. Step i) provides u) from about 20.0% to about 99.8% by weight of softwood pulp fiber; and, v) from about 0.05% to about 5.0% by weight of strengthening additive. Step ii) provides w) from about 0.05% to about 79.4% by weight of hardwood pulp fibers; and, x) from about 0.05% to about 20.0% by weight of cellulose nano-filaments.
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公开(公告)号:US20200332471A1
公开(公告)日:2020-10-22
申请号:US16865887
申请日:2020-05-04
Applicant: Mercer International Inc.
Inventor: Tobias Ziegenbein
IPC: D21H27/30 , D21H11/08 , D21H11/18 , D21H15/02 , D21H27/00 , D21F11/14 , D21H11/02 , D21H17/44 , D21H21/20 , B32B29/00
Abstract: The present disclosure provides for a paper product. The paper product has: (a) from about 20% to about 90% by weight of the dry fiber basis of the paper product of a refined soft wood pulp fiber mixture, (b) pulp fibers selected from the group consisting of hard wood fibers, non-wood fibers, recycled fibers, synthetic polymer fibers, bleached eucalyptus kraft fibers, and combinations thereof; and, (c) not more than about 10% by weight moisture.
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公开(公告)号:US10724173B2
公开(公告)日:2020-07-28
申请号:US15637153
申请日:2017-06-29
Applicant: Mercer International Inc.
Inventor: Tobias Ziegenbein
IPC: D21B1/38 , D21H21/52 , D21F11/14 , D21F9/00 , D21H11/18 , D21H11/20 , D21H17/25 , D21H27/00 , C08J5/18 , C08L1/02 , D21D1/20 , D01B9/00
Abstract: An absorbent towel paper web product produced by a paper making process that introduces differential density within the fibrous web and comprises from about 0.05 percent to about 20.0 percent by weight of the dry fiber basis of the paper web product with cellulose nanofilaments.
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公开(公告)号:US10711112B2
公开(公告)日:2020-07-14
申请号:US16587152
申请日:2019-09-30
Applicant: Mercer International Inc.
Inventor: Tobias Ziegenbein
IPC: D21H27/34 , D21H27/30 , D21H21/18 , D21H15/06 , D21H11/18 , D21H11/00 , D21H11/04 , D21H11/20 , D21H13/02 , D21H17/25 , D21H21/20 , D21H27/00 , C08J5/18 , C08L1/06
Abstract: A differential density absorbent towel paper web having from about 45% to about 90% by weight of the dry fiber basis of the differential density 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 differential density absorbent towel paper web of a hardwood pulp fiber mixture is provided. The softwood pulp fiber mixture has: 1) from about 20.0% to about 88.5% by weight of the dry fiber basis of softwood pulp fiber; and, 2) from about 0.05% to about 5.0% by weight of the dry fiber basis of strengthening additive. The hardwood pulp fiber mixture has: 1) from about 9.9% to about 54.9% by weight of the dry fiber basis of hardwood pulp fibers; and, 2) from about 0.05% to about 20.0% by weight of the dry fiber basis of cellulose nano-filaments.
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公开(公告)号:US10687675B2
公开(公告)日:2020-06-23
申请号:US16587099
申请日:2019-09-30
Applicant: Mercer International Inc.
Inventor: Tobias Ziegenbein
IPC: A47K10/16 , D21H11/00 , B32B21/13 , B32B29/00 , D21H21/52 , B32B23/10 , B32B5/26 , B32B7/12 , D21H27/00 , D21H11/18 , D21H27/30 , D21H23/76 , B82Y40/00 , D21C9/00 , B82Y99/00
Abstract: A differential density absorbent towel paper web comprising at least one ply. The differential density absorbent towel paper web has from about 45% to about 90% of a softwood pulp fiber mixture and from about 10% to about 55% of a hardwood pulp fiber mixture. The softwood pulp fiber mixture has from about 20% to about 89.9% of softwood pulp fibers; from about 0.05% to about 20% cellulose nanofilaments; and, from about 0.05% to about 5.0% of strengthening additive.
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