公开(公告)号：US07556714B2

公开(公告)日：2009-07-07

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： D21F11/00

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.

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。

公开(公告)号：US5454405A

公开(公告)日：1995-10-03

申请号：US294552

申请日：1994-08-23

申请人： John M. Hawes

发明人： John M. Hawes

IPC分类号： D21F7/08 ,  D03D11/00 ,  D21F1/00 ,  D03D13/00

CPC分类号： D21F1/0045

摘要： A triple-layer papermaking fabric includes top and a bottom weft yarn layers interwoven with a system of warp yarns. The warp yarn system includes pairs of associated, stacked first and second warp yarns. The first warp yarn in each pair interweaves with the top weft yarns in a plain-weave pattern occasionally broken by an interweaving with a bottom weft yarn to join the top and bottom weft yarn layers together. The second warp yarn in each pair, ordinarily running between the top and bottom weft yarn layers and stacked below the first warp yarn, weaves over the top weft yarn skipped by the first warp yarn when it weaves down under a bottom weft yarn to maintain the plain-weave character of the top surface of the fabric. The second warp yarn never weaves with the bottom weft yarns. The fabric is flat-woven, and subsequently seamed into endless form. The first warp yarns have an exaggerated crimp to provide the fabric with an enhanced seam strength. The second warp yarns, having relatively little crimp, provide the fabric with an enhanced stretch resistance.

摘要翻译： 三层造纸织物包括与经纱系统交织的顶部和底部纬纱层。 经纱系统包括一对相关的，堆叠的第一和第二经纱。 每对中的第一根经纱与顶部纬纱交织在一起，平纹组织图案偶尔由与底部纬纱交织而断裂，将顶部和底部纬纱层连接在一起。 通常在上下纬纱层之间运行并堆叠在第一根经纱下方的第二根经纱在第一根经纱上跳过的顶部纬纱在下纬纱下方编织，以维持 织物顶面的平纹编织。 第二根经纱不会与底部纬纱共纺。 织物是平织的，随后被缝成无止境的形式。 第一根经纱具有夸张的卷曲，为织物提供增强的接缝强度。 具有相对较小卷曲的第二经纱为织物提供增强的抗拉伸性。