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    A METHOD OF OPERATING A PAPERMAKING PROCESS
    2.
    发明公开
    A METHOD OF OPERATING A PAPERMAKING PROCESS 有权
    程序纸制造工艺的实现

    公开(公告)号：EP2064505A1

    公开(公告)日：2009-06-03

    申请号：EP07841589.0

    申请日：2007-08-30

    申请人： Nalco Company ,  ALBANY INTERNATIONAL CORP.

    发明人： GRAY, Ross T. ,  ST. JOHN, Michael R. ,  THOMAS, James L. ,  WEINSTEIN, David I. ,  HAWES, John M. ,  TONEY, Mary M.

    IPC分类号： F26B13/10 ,  D21F5/00

    CPC分类号： D21F3/00 ,  D21H17/37 ,  D21H21/10

    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

    FLUOROMETRIC METHOD FOR MONITORING SURFACE ADDITIVES IN A PAPERMAKING PROCESS
    4.
    发明公开
    FLUOROMETRIC METHOD FOR MONITORING SURFACE ADDITIVES IN A PAPERMAKING PROCESS 审中-公开
    用于监测表面添加剂荧光法IN A造纸过程

    公开(公告)号：EP2212676A1

    公开(公告)日：2010-08-04

    申请号：EP08852826.0

    申请日：2008-11-14

    申请人： Nalco Company

    发明人： THOMAS, James L. ,  CLOT, Olivier ,  BANKS, Rodney H.

    IPC分类号： G01N21/64 ,  G01N21/86 ,  G01N33/34 ,  G01B11/06 ,  D21H21/30

    CPC分类号： G01N21/643 ,  D21H19/36 ,  D21H19/54 ,  D21H21/30 ,  D21H23/78 ,  G01N21/8422 ,  G01N21/86 ,  G01N21/91 ,  G01N33/346 ,  G01N2021/6484 ,  G01N2021/8416 ,  G01N2021/8427 ,  G01N2021/8917

    摘要： A method of monitoring and optionally controlling the addition of one or more surface additives to a papermaking process is disclosed. The method comprises the following steps: (a) adding a known amount of one or more surface additives to a papermaking process either alone or in known proportion with a known amount of one or more inert fluorescent tracers, wherein the surface additives can only be added alone when the surface additives are capable of fluorescing; (b) measuring the fluorescence of the surface additives and/or one or more inert fluorescent tracers at a point subsequent to adding the surface additives and after a sheet has been formed, wherein the surface additives can only be measured when they are capable of fluorescing and wherein fluorescence is measured with a reflectance based fluorometer; (c) correlating the amount of fluorescence of the surface additives when they are capable of fluorescing and/or inert fluorescent tracers on a sheet with the concentration of the surface additives in a coating on a sheet and/or thickness of a coating on a sheet; and (d) optionally controlling the addition of one or more surface additives to a papermaking process by adjusting the amount of the surface additives added to the papermaking process in response to the coating thickness on a sheet and/or concentration of the surface additives in a coating on a sheet.