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1.发明申请Process for Producing a Paper or Board and a Paper or Board Produced According to the Process 审中-公开根据流程生产纸张或纸张和纸张或纸板的过程公开(公告)号：US20080023164A1
公开(公告)日：2008-01-31
申请号：US11665229
申请日：2005-10-13
申请人： Mats Fredlund , Lars Wagberg , Hans Hallgren , Hans Hoglund , Gunilla Pettersson
发明人： Mats Fredlund , Lars Wagberg , Hans Hallgren , Hans Hoglund , Gunilla Pettersson
摘要： The present invention concerns a process for producing a paper or board product, which process comprises providing a furnish comprising fibers; subjecting a first portion (1) of the furnish to polymer treatment, in which polymers are added to the furnish in at least two steps; blending said polymer treated first portion with an untreated second portion (2) of the furnish; and dewatering the furnish on a wire to form a fiber web. By treating only a portion of the furnish, the strength of the resulting paper or board product is significantly improved whereas the bulk remains substantially unaffected. The invention also concerns a paper or board product produced according to the process.
摘要翻译： 本发明涉及用于生产纸或纸制品的方法，该方法包括提供包含纤维的配料; 对所述配料的第一部分（1）进行聚合物处理，其中将聚合物以至少两个步骤添加到所述配料中; 将所述聚合物处理的第一部分与所述配料的未处理的第二部分（2）共混; 并且将配件在线材上脱水以形成纤维网。 通过仅处理配料的一部分，所得到的纸或板产品的强度显着提高，而体积基本上不受影响。 本发明还涉及根据该方法生产的纸或纸板产品。
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公开(公告)号：US4911790A
公开(公告)日：1990-03-27
申请号：US141315
申请日：1988-01-06
申请人： Tom Lindstrom , Hans Hallgren , Fritz Hedborg
发明人： Tom Lindstrom , Hans Hallgren , Fritz Hedborg
摘要： The present invention relates to a process for obtaining retention of the manufacture of paper, whereby one adds a cationic, high polymer polysaccharide at the preparation of a stock of paper pulp; that one adds an anionic aluminium compound, or a combination of an aluminium salt and an alkali or an acid to the formation in situ of such an anionic aluminium compound immediately prior to the head box, whereby pH immediately prior to the head box is kept at pH 7 to 8.
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