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公开(公告)号：WO2010126712A1
公开(公告)日：2010-11-04
申请号：PCT/US2010/030986
申请日：2010-04-14
申请人： NALCO COMPANY , CHENG, Weiguo , GRAY, Ross T.
发明人： CHENG, Weiguo , GRAY, Ross T.
CPC分类号： D21H17/67 , D21H17/675 , D21H17/68 , D21H17/69 , D21H21/18
摘要： A method of preparing a stable dispersion of flocculated filler particles for use in papermaking processes comprises sequential addition of a first flocculating agent to an aqueous dispersion of filler particles followed by shearing of the dispersion, followed by addition of a second flocculating agent to the dispersion and further shearing of the resultant filler flocs to the desired particle size resulting in shear resistant filler flocs with a defined and controllable size distribution. In addition, a neutralizing coagulant can be added to the dispersion to partially or completely neutralize the charge of the filler before the first flocculating agent is added
摘要翻译： 制备用于造纸方法的絮凝填料颗粒的稳定分散体的方法包括将第一絮凝剂顺序加入到填料颗粒的水分散体中，然后剪切分散体，然后向分散体中加入第二絮凝剂， 进一步将所得填料絮凝物剪切成所需的粒度，从而产生具有限定和可控尺寸分布的抗剪切填料絮凝物。 此外，在添加第一絮凝剂之前，可以将中和凝结剂加入到分散体中以部分或完全中和填料的电荷
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公开(公告)号：WO2011116253A2
公开(公告)日：2011-09-22
申请号：PCT/US2011/028917
申请日：2011-03-18
申请人： NALCO COMPANY , CHENG, Weiguo , GRAY, Ross T.
发明人： CHENG, Weiguo , GRAY, Ross T.
CPC分类号： D21H17/45 , D21H17/375 , D21H17/67 , D21H17/675 , D21H21/18
摘要： The invention provides a method of producing paper with a higher proportion of mineral filler particles than is otherwise be possible without the expected loss in paper strength by preflocculating the filler particles. The method allows for the use of the greater amount of filler particles by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a strength additive. The strength additive holds the paper fibers together tightly and is not wasted on the filler particles.
摘要翻译： 本发明提供了一种生产具有比其它方法更高比例的矿物填料颗粒的纸的方法，通过预填充填料颗粒不会造成纸强度的预期损失。 该方法允许通过用防止填料材料粘附到强度添加剂的材料涂覆至少一些填料颗粒来使用更大量的填料颗粒。 强度添加剂将纸纤维紧密地保持在一起，并且不会浪费在填料颗粒上。
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公开(公告)号：WO2009036271A1
公开(公告)日：2009-03-19
申请号：PCT/US2008/076167
申请日：2008-09-12
申请人： NALCO COMPANY , CHENG, Weiguo , GRAY, Ross T.
发明人： CHENG, Weiguo , GRAY, Ross T.
CPC分类号： D21H17/69 , D21H17/67 , D21H17/675 , D21H17/68 , D21H21/18
摘要： A method of preparing a stable dispersion of flocculated filler particles for use in papermaking processes comprises sequential addition of high and low molecular weight flocculating agents to an aqueous dispersion of filler particles followed by shearing of the resultant filler flocs to the desired particle size resulting in shear resistant filler flocs with a defined and controllable size distribution.
摘要翻译： 制备用于造纸方法的絮凝填料颗粒的稳定分散体的方法包括将高分子量低分子量絮凝剂顺序加入到填料颗粒的水分散体中，然后将所得填料絮凝物剪切成所需的粒度，从而导致剪切 具有规定和可控尺寸分布的耐磨填料絮凝物。
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公开(公告)号：WO2008036497A1
公开(公告)日：2008-03-27
申请号：PCT/US2007/077187
申请日：2007-08-30
申请人： NALCO COMPANY , ALBANY INTERNATIONAL CORPORATION , GRAY, Ross T. , ST. JOHN, Michael R. , THOMAS, James L. , WEINSTEIN, David I. , HAWES, John M. , TONEY, Mary M.
发明人： GRAY, Ross T. , ST. JOHN, Michael R. , THOMAS, James L. , WEINSTEIN, David I. , HAWES, John M. , TONEY, Mary M.
摘要： A method of operating a papermaking process containing a press section with at least one press nip is disclosed. The method comprises simultaneously performing the following steps: (a) providing a press media for said papermaking process that has a MFP size that is less than the MFP size of a press media that was originally supplied to said papermaking process; (b) adding an effective amount of one or more press sheet dewatering additives to said papermaking process prior to the last press nip of said papermaking process; (c) providing a sheet moisture ratio of a paper sheet entering a press nip of said press section to between about 2 to about 9; and (d) applying an optimum rate of pressure development at one or more press nips of said papermaking process, wherein said steps a, b, c, and d either: result in the production of a more uniform paper sheet without the reduction in paper solids exiting the press section that would be expected from performing a, c, and d, alone or in combination with one another; or result in the production of a more uniform paper sheet with an increase in solids content of said paper sheet exiting the press section
摘要翻译： 公开了一种操作含有至少一个压榨压区的压榨部的造纸工艺的方法。 该方法包括同时执行以下步骤：（a）提供具有MFP尺寸小于原始提供给所述造纸过程的印刷媒体的MFP尺寸的所述造纸过程的压制介质; （b）在所述造纸工艺的最后压榨压区之前，在所述造纸工艺中加入有效量的一种或多种压片脱水添加剂; （c）提供进入所述压榨部的压榨辊隙的纸张的片材湿度比在约2至约9之间; 和（d）在所述造纸方法的一个或多个压榨压力下施加最佳压力显影速率，其中所述步骤a，b，c和d也可以产生更均匀的纸张，而不会减少纸张 离开压榨段的固体，预期单独或彼此组合执行a，c和d; 或者导致离开压榨部的所述纸张的固体含量增加而生产更均匀的纸张
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公开(公告)号：WO2013158811A1
公开(公告)日：2013-10-24
申请号：PCT/US2013/037048
申请日：2013-04-18
申请人： NALCO COMPANY
发明人： CHENG, Weiguo , GRAY, Ross T.
CPC分类号： D21H21/00 , D21H17/375 , D21H17/45 , D21H17/455 , D21H17/675 , D21H17/68 , D21H17/71 , D21H17/72 , D21H17/74 , D21H21/06 , D21H21/10 , D21H21/18
摘要： A method of preparing a stable dispersion of flocculated filler particles for use in papermaking processes comprises sequential addition of a first flocculating agent to an aqueous dispersion of filler particles followed by shearing of the dispersion, followed by addition of a second flocculating agent to the dispersion and further shearing of the resultant filler flocs to the desired particle size resulting in shear resistant filler flocs with a defined and controllable size distribution. In addition, a neutralizing coagulant can be added to the dispersion to partially or completely neutralize the charge of the filler before the first flocculating agent is added.
摘要翻译： 制备用于造纸方法的絮凝填料颗粒的稳定分散体的方法包括将第一絮凝剂顺序加入到填料颗粒的水分散体中，然后剪切分散体，然后向分散体中加入第二絮凝剂， 进一步将所得填料絮凝物剪切成所需的粒度，从而产生具有限定和可控尺寸分布的抗剪切填料絮凝物。 此外，在添加第一絮凝剂之前，可以将中和凝结剂加入到分散体中以部分或完全中和填料的电荷。
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