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138 条记录 (耗时 0.025 秒)

    High strength paper
    33.
    发明授权
    High strength paper 有权

    公开(公告)号：US09605383B2

    公开(公告)日：2017-03-28

    申请号：US14614999

    申请日：2015-02-05

    申请人： NANOPAPER, LLC

    发明人： Gangadhar Jogikalmath ,  Patrick D. Kincaid ,  Lynn D. Bell ,  David S. Soane

    IPC分类号： D21H17/45 ,  D21H17/29 ,  D21H17/37 ,  D21H21/18 ,  D21H17/41 ,  D21H17/42 ,  D21H17/44 ,  D21H17/56

    CPC分类号： D21H17/455 ,  D21H17/29 ,  D21H17/375 ,  D21H17/41 ,  D21H17/42 ,  D21H17/44 ,  D21H17/56 ,  D21H21/18

    摘要： Systems and methods for attaching particulate additives to a population of cellulose fibers dispersed in an aqueous solution are described. The cellulose fibers are treated with an activator that forms complexes with them. The particulate additive is attached to a tether that is capable of interacting with the activator, thereby forming a tether-bearing particulate additive. The tether-bearing particulate additive can be added to the activated suspension of cellulose fibers. The resulting interaction between the tether and the activator forms durable complexes that attach the particulate additive to the cellulose fibers. Using these systems and methods, useful additives like starches can be attached to cellulose fibers, imparting advantageous properties such as increased strength to paper products formed thereby. These systems and methods are particularly useful for papermaking involving virgin pulp fibers, recycled fibers, or any combination thereof.

    Process for production of paper
    35.
    发明授权
    Process for production of paper 有权
    纸张生产流程

    公开(公告)号：US08784611B2

    公开(公告)日：2014-07-22

    申请号：US13501653

    申请日：2010-11-03

    申请人： Ari Juppo ,  Ulf Stenbacka

    发明人： Ari Juppo ,  Ulf Stenbacka

    IPC分类号： D21H17/25 ,  D21H17/44 ,  D21H21/10 ,  D21H17/37 ,  D21H21/52

    CPC分类号： D21H21/10 ,  D21H17/25 ,  D21H17/37 ,  D21H17/375 ,  D21H17/44 ,  D21H21/52 ,  Y10S977/963

    摘要： The invention relates to a process for the production of paper or board comprising: adding a retention system to a stream of stock entering a paper machine head box, directing the stream of stock to a wire, de watering the stream of stock on the wire to form a paper web, and drying the paper web, wherein the retention system comprises a water-soluble cationic polymer, and nanocellulose acting like a micro particle, wherein the nanocellulose is added in an amount of less than 1% as active substance based on dry solids weight of the stock.

    摘要翻译： 本发明涉及一种用于生产纸或纸板的方法，其包括：将保留系统添加到进入造纸机头箱的料流中，将原料流引导到导线上，使线上的原料流脱水至 形成纸幅，并干燥纸幅，其中保留系统包括水溶性阳离子聚合物和作为微粒子的纳米纤维，其中以基于干燥的活性物质加入小于1％的纳米纤维素 原料的固体重量。

    Sheet surface treating and ink-jet printing paper
    36.
    发明申请
    Sheet surface treating and ink-jet printing paper 审中-公开
    片材表面处理和喷墨打印纸

    公开(公告)号：US20050034829A1

    公开(公告)日：2005-02-17

    申请号：US10660935

    申请日：2003-09-12

    申请人： Toshiaki Sugiyama ,  Motosuke Ono ,  Osamu Kamada

    发明人： Toshiaki Sugiyama ,  Motosuke Ono ,  Osamu Kamada

    IPC分类号： B41M5/00 ,  B41M5/50 ,  B41M5/52 ,  C08F2/44 ,  C08F261/04 ,  D21H17/44 ,  D21H19/20 ,  D21H21/16

    CPC分类号： B41M5/5254 ,  B41M5/52 ,  B41M5/5245 ,  D21H17/44

    摘要： There is provided a treating agent for a sheet surface comprising a graft copolymer composed of a back bone polymer and branch polymer, either of which is a polymer having vinyl alcohol units, and the other of which is a polymer having cationic groups, the treating agent is applied onto a pulp sheet or plastic sheet, and the coated sheet is used in ink jet printing. Cationic groups are introduced by graft copolymerization using di(meth)allylamine-based and/or (meth)acryl-based monomer. Alternatively, the graft copolymer of the present invention is obtained by grafting N-vinylcarboxylic acid amide monomer followed by hydrolysis thereof. A formula weight ratio of vinylalcohol units and the introduced cationic groups of 1:20 to 2:1 is preferable in terms of balanced performance.

    摘要翻译： 提供了一种用于片材表面处理剂，其包含由背骨聚合物和分支聚合物组成的接枝共聚物，其中任一种是具有乙烯醇单元的聚合物，另一种是具有阳离子基团的聚合物，处理剂 涂布在纸浆片或塑料片上，并且涂布的片材用于喷墨印刷。 通过使用二（甲基）烯丙基胺和/或（甲基）丙烯酸类单体的接枝共聚引入阳离子基团。 或者，本发明的接枝共聚物是通过接枝N-乙烯基羧酸酰胺单体进行水解而获得的。 在平衡性方面，优选乙烯醇单元和引入的阳离子基团的配方重量比为1:20至2:1。

    Application of material to a substrate
    39.
    发明授权
    Application of material to a substrate 失效
    材料应用于基材

    公开(公告)号：US5942086A

    公开(公告)日：1999-08-24

    申请号：US750937

    申请日：1997-02-13

    申请人： David Malcolm Owen

    发明人： David Malcolm Owen

    IPC分类号： E04F13/08 ,  D21H17/28 ,  D21H17/37 ,  D21H17/42 ,  D21H17/45 ,  D21H23/10 ,  D21H23/76 ,  D21H17/44

    CPC分类号： D21H17/375 ,  D21H17/28 ,  D21H17/42 ,  D21H17/455 ,  D21H23/10

    摘要： The invention relates to a process of applying a polyhydroxy high molecular weight polymer or like material to a substrate, comprising adding to a solution of such material in anionic form a flocculent of oppositely charged form in order to insolubilise such material, and thereafter applying such insolubilised material to said substrate. The invention has particular application in respect of production of paper by adding to the slurry supplied in paper production of an anionic starch and a cationic flocculent in predetermined amounts. The cationic polymer is preferably added prior to addition of the anionic starch. The cationic polymer preferably has a molecular weight of 150,000 or more and the anionic starch is preferably added in an amount of from 75% to 125% of the reaction ratio amount. Preferably, the cationic polymer flocculent is added in an amount of 0.5 kg or more per 1,000 kg of paper substrate and the anionic starch showing an amount of 2 kg or more per 1,000 kg of paper substrate.

    摘要翻译： PCT No.PCT / GB95 / 01935 Sec。 371日期1997年2月13日 102（e）1997年2月13日PCT PCT 1995年8月16日PCT公布。 公开号WO96 / 05373 日期1996年2月22日本发明涉及将多羟基高分子量聚合物或类似材料施用于基材的方法，包括将这种材料的溶液以阴离子形式添加到相反电荷形式的絮状物中以使该材料不溶解， 然后将这种不溶解的材料施加到所述基底上。 本发明特别适用于通过在预定量的阴离子淀粉和阳离子絮凝物的纸张生产中提供的浆料中加入纸的生产。 阳离子聚合物优选在加入阴离子淀粉之前加入。 阳离子性聚合物的分子量优选为15万以上，阴离子性淀粉的添加量优选为反应率的75〜125％。 优选地，阳离子聚合物絮凝剂的添加量为每1000kg纸基材0.5kg或更多，阴离子淀粉的每1000kg纸基材的量为2kg以上。