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    Method of increasing paper strength by using natural gums and dry strength agent in the wet end
    3.
    发明授权
    Method of increasing paper strength by using natural gums and dry strength agent in the wet end 有权
    在湿端使用天然树胶和干强力剂增加纸张强度的方法

    公开(公告)号：US09181657B2

    公开(公告)日：2015-11-10

    申请号：US13731311

    申请日：2012-12-31

    Applicant: Nalco Company

    Inventor： David J. Castro ,  Weiguo Cheng

    IPC: D21H17/31 ,  D21H17/32 ,  D21H17/45 ,  D21H17/69 ,  D21H21/10 ,  D21H21/20 ,  D21H21/18

    CPC classification number: D21H17/31 ,  D21H17/67 ,  D21H17/675 ,  D21H17/68 ,  D21H17/69 ,  D21H21/18 ,  D21H21/20

    Abstract: The invention provides a method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in a papermaking process. The method improves the efficiency of drainage aids or wet web strength aids or wet strength aid by coating at least some of the filler particles with a natural gum and with a material that prevents the filler materials form adhering to those additives. The drainage additive or wet web strength additive or wet strength aid holds the cellulose fibers together tightly and is not wasted on the filler particles.

    Abstract translation: 本发明提供了一种在造纸过程中提高脱水效率，增加片材湿网强度，增加片材湿强度和增强填料保留性的方法。 该方法通过用天然树胶涂覆至少一些填料颗粒和防止填料与这些添加剂粘附的材料来提高排水助剂或湿网强度助剂或湿强度助剂的效率。 排水添加剂或湿网强度添加剂或湿强度助剂将纤维素纤维紧密地保持在一起，并且不会浪费在填料颗粒上。

    Furnish pretreatment to improve paper strength aid performance in papermaking
    6.
    发明授权
    Furnish pretreatment to improve paper strength aid performance in papermaking 有权
    提供预处理以提高造纸中纸张强度的帮助性能

    公开(公告)号：US09506202B2

    公开(公告)日：2016-11-29

    申请号：US14537055

    申请日：2014-11-10

    Applicant: NALCO COMPANY

    Inventor： Yulin Zhao ,  Jun Li ,  Qing Long Rao ,  Weiguo Cheng

    IPC: D21H21/20 ,  D21H17/37 ,  D21H17/44 ,  D21C5/02 ,  D21H17/28 ,  D21H17/00 ,  D21H21/18 ,  D21H11/14 ,  D21H23/14 ,  D21H17/45

    CPC classification number: D21H21/20 ,  D21H11/14 ,  D21H17/28 ,  D21H17/375 ,  D21H17/45 ,  D21H17/72 ,  D21H21/18 ,  D21H23/14

    Abstract: The invention is directed towards methods, compositions, and apparatus for increasing the strength of paper made out of a furnish having a large proportion of OCC. The method involves the following steps: 1) Providing a paper furnish having a large amount of OCC in it, 2) adding strength promoter to the furnish prior to adding a strength agent to the furnish, 3) adding a strength agent to the furnish, and 4) making a paper product from the furnish. This method allows cheap OCC material to be used in a papermaking process without the quality problems that the anionic trash in OCC typically causes. Thus paper products having low costs and high quality can be produced.

    Abstract translation: 本发明涉及用于增加由具有大比例的OCC的配料制成的纸的强度的方法，组合物和装置。 该方法包括以下步骤：1）提供其中含有大量OCC的纸配料; 2）在向配料中加入强度剂之前，向配料中加入强度促进剂，3）向配料中加入强度剂， 和4）从配料制造纸制品。 这种方法允许在造纸过程中使用便宜的OCC材料，而没有OCC中的阴离子垃圾通常引起的质量问题。 因此，可以生产成本低，质量高的纸制品。

    ANIONIC PREFLOCCULATION OF FILLERS USED IN PAPERMAKING
    7.
    发明申请
    ANIONIC PREFLOCCULATION OF FILLERS USED IN PAPERMAKING 有权
    在造纸中使用的填料的阴离子取代

    公开(公告)号：US20150167245A1

    公开(公告)日：2015-06-18

    申请号：US14330839

    申请日：2014-07-14

    Applicant: Nalco Company

    Inventor： Weiguo Cheng ,  Katherine M. Broadus ,  Dorota Smoron ,  Shawnee M. Wilson

    IPC: D21H17/00 ,  D21H17/37 ,  D21H17/67

    CPC classification number: D21H17/74 ,  D21H17/375 ,  D21H17/67 ,  D21H17/675 ,  D21H17/68 ,  D21H17/69 ,  D21H21/18

    Abstract: A method of preparing a stable dispersion of flocculated filler particles for use in papermaking processes comprises use of an anionic first flocculating agent to an aqueous dispersion of filler particles, followed by addition of a second anionic flocculating agent to the dispersion and further optional shearing of the resultant filler flocs to the desired particle size resulting in shear resistant filler flocs with a defined and controllable size distribution.

    Abstract translation: 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阴离子第一絮凝剂用于填料颗粒的水分散体，然后向分散体中加入第二阴离子絮凝剂，并进一步选择性地剪切 所得填料絮凝物达到所需的粒度，从而产生具有限定和可控尺寸分布的抗剪切填料絮凝物。

    FURNISH PRETREATMENT TO IMPROVE PAPER STRENGTH AID PERFORMANCE IN PAPERMAKING
    8.
    发明申请
    FURNISH PRETREATMENT TO IMPROVE PAPER STRENGTH AID PERFORMANCE IN PAPERMAKING 有权
    提高造纸纸强度性能的家具预处理

    公开(公告)号：US20150059998A1

    公开(公告)日：2015-03-05

    申请号：US14537055

    申请日：2014-11-10

    Applicant: NALCO COMPANY

    Inventor： Yulin Zhao ,  Jun Li ,  Qing Long Rao ,  Weiguo Cheng

    IPC: D21H21/20 ,  D21H17/37 ,  D21H17/45

    CPC classification number: D21H21/20 ,  D21H11/14 ,  D21H17/28 ,  D21H17/375 ,  D21H17/45 ,  D21H17/72 ,  D21H21/18 ,  D21H23/14

    Abstract: The invention is directed towards methods, compositions, and apparatus for increasing the strength of paper made out of a furnish having a large proportion of OCC. The method involves the following steps: 1) Providing a paper furnish having a large amount of OCC in it, 2) adding strength promoter to the furnish prior to adding a strength agent to the furnish, 3) adding a strength agent to the furnish, and 4) making a paper product from the furnish. This method allows cheap OCC material to be used in a papermaking process without the quality problems that the anionic trash in OCC typically causes. Thus paper products having low costs and high quality can be produced.

    Abstract translation: 本发明涉及用于增加由具有大比例的OCC的配料制成的纸的强度的方法，组合物和装置。 该方法包括以下步骤：1）提供其中含有大量OCC的纸配料; 2）在向配料中加入强度剂之前，向配料中加入强度促进剂，3）向配料中加入强度剂， 和4）从配料制造纸制品。 这种方法允许在造纸过程中使用便宜的OCC材料，而没有OCC中的阴离子垃圾通常引起的质量问题。 因此，可以生产成本低，质量高的纸制品。

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