公开(公告)号：US08262850B2

公开(公告)日：2012-09-11

申请号：US10668387

申请日：2003-09-23

申请人： Zheng Tan ,  Xuan Nguyen ,  Karen L. Maurer

发明人： Zheng Tan ,  Xuan Nguyen ,  Karen L. Maurer

IPC分类号： D21C9/16

CPC分类号： D21C9/007 ,  D21B1/16 ,  D21C3/006 ,  D21C3/02 ,  D21C9/002 ,  D21C9/004 ,  D21C9/1036 ,  D21C9/163 ,  Y10T428/298

摘要： 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 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.

摘要翻译： 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。

公开(公告)号：US20090054863A1

公开(公告)日：2009-02-26

申请号：US12152829

申请日：2008-05-16

申请人： Zheng Tan ,  Xuan Nguyen ,  Karen L. Maurer

发明人： Zheng Tan ,  Xuan Nguyen ,  Karen L. Maurer

IPC分类号： A61F13/51 ,  D21C3/00 ,  C08B1/00

CPC分类号： D21C9/007 ,  D21B1/16 ,  D21C3/006 ,  D21C3/02 ,  D21C9/002 ,  D21C9/004 ,  D21C9/1036 ,  D21C9/163 ,  Y10T428/298

摘要： 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 I and about 9, preferably between 3 and 7, and (b) subjecting the 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.

摘要翻译： 一种改变纤维素纤维，特别是软木纤维的形态的方法，通过（a）使纤维进行在约I至约9，优选3-7之间的pH下进行的金属离子活化过氧化物处理，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。

公开(公告)号：US20130098571A1

公开(公告)日：2013-04-25

申请号：US13606073

申请日：2012-09-07

申请人： Zheng Tan ,  Xuan T. Nguyen ,  Karen L. Maurer

发明人： Zheng Tan ,  Xuan T. Nguyen ,  Karen L. Maurer

IPC分类号： D21C3/00

CPC分类号： D21C9/007 ,  D21B1/16 ,  D21C3/006 ,  D21C3/02 ,  D21C9/002 ,  D21C9/004 ,  D21C9/1036 ,  D21C9/163 ,  Y10T428/298

摘要： 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.

摘要翻译： 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。