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1. 发明授权

US08496784B2 Process for making a stiffened paper 有权
公开(公告)号：US08496784B2
公开(公告)日：2013-07-30
申请号：US13080217
申请日：2011-04-05
申请人： Thomas W. Ballinger
发明人： Thomas W. Ballinger
IPC分类号： D21H17/00 , D21H17/28 , D21H21/14 , D21H23/02 , D21H23/24 , D21H23/50 , D21H17/52
CPC分类号： D21H17/68 , D21H17/36 , D21H17/38 , D21H21/18
摘要： A process for making a stiffened and rigid paper includes preparing a pulp slurry consisting essentially of water, a cellulosic pulp, a crosslinker, and a starch, and optionally a binder; draining the liquid from the pulp slurry to form a web; and drying the web. Alternatively, a process for making a stiffened and rigid paper includes the step of adding at least one crosslinker at one or more locations, such as at the wet-end, dry-end, or at both ends of the papermaking process. Suitable crosslinkers include a glyoxal-containing crosslinker, a gluteraldehyde, a polyfunctional aziridine, a zirconium-containing crosslinker, a titanium-containing crosslinker, and an epichlorohydrin, and mixtures thereof. When a binder is employed, it can be added either in the dry or wet form. Provided is a neutral or alkaline process to produce a paper product having the improved mechanical properties of a laminated product in the Z-direction, without a lamination step.

2. 发明申请

US20120255696A1 PROCESS FOR MAKING A STIFFENED PAPER 有权
标题翻译：制作强力纸的过程
公开(公告)号：US20120255696A1
公开(公告)日：2012-10-11
申请号：US13080217
申请日：2011-04-05
申请人： Thomas W. Ballinger
发明人： Thomas W. Ballinger
IPC分类号： D21H17/28 , D21H17/36
CPC分类号： D21H17/68 , D21H17/36 , D21H17/38 , D21H21/18
摘要： A process for making a stiffened and rigid paper includes preparing a pulp slurry consisting essentially of water, a cellulosic pulp, a crosslinker, and a starch, and optionally a binder; draining the liquid from the pulp slurry to form a web; and drying the web. Alternatively, a process for making a stiffened and rigid paper includes the step of adding at least one crosslinker at one or more locations, such as at the wet-end, dry-end, or at both ends of the papermaking process. Suitable crosslinkers include a glyoxal-containing crosslinker, a gluteraldehyde, a polyfunctional aziridine, a zirconium-containing crosslinker, a titanium-containing crosslinker, and an epichlorohydrin, and mixtures thereof. When a binder is employed, it can be added either in the dry or wet form. Provided is a neutral or alkaline process to produce a paper product having the improved mechanical properties of a laminated product in the Z-direction, without a lamination step.
摘要翻译：制造硬化和刚性纸的方法包括制备基本上由水，纤维素浆，交联剂和淀粉以及任选的粘合剂组成的纸浆; 从纸浆中排出液体以形成网; 并干燥网。或者，制造硬化和刚性纸的方法包括在造纸过程的一个或多个位置，例如在湿端，干端或两端添加至少一种交联剂的步骤。合适的交联剂包括含乙二醛的交联剂，戊二醛，多官能氮丙啶，含锆交联剂，含钛交联剂和表氯醇，及其混合物。当使用粘合剂时，可以以干或湿的形式加入粘合剂。提供了一种中性或碱性方法来生产在Z方向上具有改进的层叠产品的机械性能的纸制品，而无需层压步骤。

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