- 专利标题: Paper products and pulps with surface enhanced pulp fibers and increased absorbency, and methods of making same
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申请号: US17898983申请日: 2022-08-30
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公开(公告)号: US12104324B2公开(公告)日: 2024-10-01
- 发明人: Harshad Pande , Douglas W. Coffin , Mona Alinejad
- 申请人: DOMTAR PAPER COMPANY, LLC
- 申请人地址: US SC Fort Mill
- 专利权人: DOMTAR PAPER COMPANY, LLC
- 当前专利权人: DOMTAR PAPER COMPANY, LLC
- 当前专利权人地址: US SC Fort Mill
- 代理机构: Troutman Pepper Hamilton Sanders LLP
- 代理商 Alison L. McCarthy; Celeste K. Walker
- 分案原申请号: US16267755 2019.02.05
- 主分类号: D21H11/10
- IPC分类号: D21H11/10 ; D21D1/00 ; D21H15/02 ; D21H25/00 ; D21H27/00
摘要:
Paper products such as tissues can be made using a furnish comprising surface enhanced pulp fibers (“SEPF”). In some embodiments, SEPF have a weighted average fiber length of at least 0.3 millimeters (mm) and an average hydrodynamic specific surface area of at least 10 square meters per gram (m2/g). In some embodiments, a furnish or a paper product can comprise at least 2% SEPF by dry weight. In some embodiments, a paper product comprising SEPF can be formed from a furnish having a freeness of 650 ml Canadian Standard Freeness (CSF) or less, optionally 600 ml CSF or less.
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