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12 条记录 (耗时 0.034 秒)

    Method of operating a papermaking process
    8.
    发明申请
    Method of operating a papermaking process 有权
    操作造纸工艺的方法

    公开(公告)号：US20080082198A1

    公开(公告)日：2008-04-03

    申请号：US11522578

    申请日：2006-09-18

    申请人： Ross T. Gray ,  Michael R. St. John ,  James L. Thomas ,  David I. Weinstein ,  John M. Hawes ,  Mary M. Toney

    发明人： Ross T. Gray ,  Michael R. St. John ,  James L. Thomas ,  David I. Weinstein ,  John M. Hawes ,  Mary M. Toney

    IPC分类号： G06F7/66

    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.

    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。

    Method to reduce forming fabric edge curl
    10.
    发明授权
    Method to reduce forming fabric edge curl 失效
    减少成形织物边缘卷曲的方法

    公开(公告)号：US5546643A

    公开(公告)日：1996-08-20

    申请号：US524234

    申请日：1995-09-06

    申请人： John M. Hawes ,  Joe W. Sims ,  Don Lee

    发明人： John M. Hawes ,  Joe W. Sims ,  Don Lee

    IPC分类号： D21F1/10 ,  D21F1/00 ,  D06C13/00

    CPC分类号： D21F1/0027 ,  Y10S26/01

    摘要： A method for reducing or eliminating forming fabric edge curl includes slitting or scoring the knuckles formed by cross-machine direction yarns on the long-shute knuckle side of a papermaker's forming fabric. The knuckles are scored or slit to a depth no greater than half the diameter of the cross-machine direction yarns. At least one such slit or score is provided per knuckle. The scoring or slitting has the effect of bringing the ratio between the shrink forces acting on the two sides of the forming fabric in the cross-machine direction closer to unity, and, in turn, reduces or eliminates the edge curl resulting from shrinkage in the cross-machine direction.

    摘要翻译： 一种用于减少或消除成形织物边缘卷曲的方法包括在造纸机成形织物的长时间转向节上由跨机器方向纱线形成的关节切割或刻划。 指关节被刻痕或切割成不超过横机方向纱线直径的一半的深度。 每个指关节至少提供一个这样的狭缝或刻痕。 刻痕或分切具有使作用在成形织物的两侧的收缩力在横机方向上的比率更接近于一体的效果，并且进而降低或消除由于 跨机器方向。