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公开(公告)号：US20140000825A1
公开(公告)日：2014-01-02
申请号：US14017954
申请日：2013-09-04
Applicant: INTERNATIONAL PAPER COMPANY
Inventor： ZHENG TAN , XUAN T. NGUYEN , KAREN MAURER
IPC: D21C9/00
CPC classification number: D21C9/007 , D21B1/16 , D21C3/006 , D21C3/02 , D21C9/002 , D21C9/004 , D21C9/1036 , D21C9/163 , Y10T428/298
Abstract: A method for alteration of the morphology of cellulose fibers, particularly softwood fibers, by (a) subjecting the fibers to a metal ion-activated peroxide treatment carried out at a pH of between about 1 and about 9, preferably between 3 and 7, and (b) subjecting the treated fibers to a refining treatment thereby converts SW fibers toHW-like fibers in many respects. The metal ion-activated peroxide treatment has been noted to act on pulp cellulose and hemi-cellulose, causing oxidation and oxidative degradation of cellulose fibers. The chemical treatment of the pulp, taken alone, is not sufficient to attain the desired modification of the morphology of the fibers, however, subsequent refining or like mechanical treatment of the chemically-treated fibers to achieve a given degree of refinement of the fibers requires dramatically less refining energy to achieve a desired end point of refinement and to impart other desirable properties to the pulp. A pulp of modified SW fibers and a mixture of HW fibers and modified HW fibers are disclosed.
Abstract translation: 通过（a）使纤维进行在约1至约9，优选3至7之间的pH下进行的金属离子活化的过氧化物处理，改变纤维素纤维，特别是软木纤维的形态的方法，以及 （b）经处理的纤维进行精制处理，从而在许多方面将SW纤维转化成HW样纤维。 已经注意到金属离子活化的过氧化物处理作用于纸浆纤维素和半纤维素，引起纤维素纤维的氧化和氧化降解。 单独使用纸浆的化学处理不足以达到对纤维形态的所需改性，然而，随后的精炼或类似机械处理化学处理的纤维以达到纤维的一定程度的细化需要 显着减少精炼能量以实现期望的精制终点并赋予纸浆其它所需特性。 公开了改性SW纤维的纸浆和HW纤维和改性的HW纤维的混合物。
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公开(公告)号：US20160024713A1
公开(公告)日：2016-01-28
申请号：US14874797
申请日：2015-10-05
Applicant: INTERNATIONAL PAPER COMPANY
Inventor： ZHENG TAN , XUAN T. NGUYEN , KAREN MAURER
CPC classification number: D21C9/007 , D21B1/16 , D21C3/006 , D21C3/02 , D21C9/002 , D21C9/004 , D21C9/1036 , D21C9/163 , Y10T428/298
Abstract: A method for alteration of the morphology of cellulose fibers, particularly softwood fibers, by (a) subjecting the fibers to a metal ion-activated peroxide treatment carried out at a pH of between about 1 and about 9, preferably between 3 and 7, and (b) subjecting Use treated fibers to a refining treatment thereby converts SW fibers to HW-like fibers in many respects. The metal ion-activated peroxide treatment has been noted to act on pulp cellulose and hemi-cellulose, causing oxidation and oxidative degradation of cellulose fibers. The chemical treatment of the pulp, taken alone, is not sufficient to attain the desired modification of the morphology of the fibers however, subsequent refining or like mechanical treatment of the chemically-treated fibers to achieve a given degree of refinement of the fibers requires dramatically less refining energy to achieve a desired end point of refinement and to impart other desirable properties to the pulp. A pulp of modified SW fibers and a mixture of HW fibers and modified HW fibers are disclosed.
Abstract translation: 通过（a）使纤维进行在约1至约9，优选3至7之间的pH下进行的金属离子活化的过氧化物处理，改变纤维素纤维，特别是软木纤维的形态的方法，以及 （b）使用经处理的纤维进行精制处理，从而在许多方面将SW纤维转化成类似HW的纤维。 已经注意到金属离子活化的过氧化物处理作用于纸浆纤维素和半纤维素，引起纤维素纤维的氧化和氧化降解。 单独使用纸浆的化学处理不足以达到对纤维形态的所需改性，然而随后的精炼或类似的机械处理化学处理的纤维以达到纤维的一定程度的细化需要显着地 较少的精炼能量以实现期望的精制终点并赋予纸浆其它所需的性能。 公开了改性SW纤维的纸浆和HW纤维和改性的HW纤维的混合物。
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公开(公告)号：US20150184346A1
公开(公告)日：2015-07-02
申请号：US14657066
申请日：2015-03-13
Applicant: INTERNATIONAL PAPER COMPANY
Inventor： XUAN T. NGUYEN
Abstract: This invention relates to the delignification of lignocellulosic pulp. More particularly, the invention relates to sulfonation and bleaching of the alkali pulping produced by Kraft pulp processes or produced through combination of alkali pulping processes and extended delignification stages.
Abstract translation: 本发明涉及木质纤维素纸浆的脱木质素。 更具体地说，本发明涉及通过牛皮纸浆法生产的碱制浆的磺化和漂白，或通过碱制浆法和延长脱木素阶段的组合制备。
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