Permanent paper
    74.
    发明公开
    Permanent paper 失效
    Dauerhaftes Papier。

    公开(公告)号:EP0579447A1

    公开(公告)日:1994-01-19

    申请号:EP93305330.8

    申请日:1993-07-07

    IPC分类号: D21H21/16 G03G7/00

    摘要: A permanent paper is disclosed which employs as a stock pulp slurry containing at least one kind of filler, and aluminum sulfate, a hydrophobic modified rosin emulsion sizing agent and a water-soluble alkaline salt, wherein the pH where said filler is dispersed in water to form 10% of a dispersion is 4 - 8, the pH of said pulp slurry is controlled within 6.5 - 7.5 and an alkaline salt of an acid having a pKa of 5 - 14 at a 25°C aqueous solution is coated onto said paper and the pH of the coated paper extract in cold water is 7.5 - 9.0.

    摘要翻译: 公开了一种使用含有至少一种填料的浆料浆料和硫酸铝,疏水改性松香乳液上浆剂和水溶性碱性盐的永久性纸,其中所述填料分散在水中的pH 形成10%的分散体为4-8,所述纸浆的pH值控制在6.5-7.5之间,并且在25℃水溶液中将pKa为5-14的酸性碱性盐涂覆在所述纸上, 涂布纸提取物在冷水中的pH为7.5〜9.0。

    Aqueous dispersions, a process for their preparation and their use as sizing agents
    77.
    发明公开
    Aqueous dispersions, a process for their preparation and their use as sizing agents 失效
    的水分散体,其制备方法和它们作为上浆剂的用途。

    公开(公告)号:EP0275851A1

    公开(公告)日:1988-07-27

    申请号:EP87850386.1

    申请日:1987-12-14

    申请人: EKA NOBEL AB

    IPC分类号: D21H17/02

    摘要: Aqueous dispersions of rosin and synthetic sizing agent wherein the particles in the dispersed phase contain a mixture of rosin and the synthetic sizing agent and wherein the dispersions contain a polyaluminum compound. The dispersions are prepared by homogenization of a homo­genous mixture of rosin material and the synthetic sizing agent and the polyaluminum compound can either be present at the production or be added to an aqueous dispersion of mixed particles. The dispersions are used as sizing agents at the production of paper, paper board, board and similar products.

    摘要翻译: 松香和合成施胶剂worin在分散相中的颗粒的水分散体含有松香和合成上浆剂的混合物,并且worin分散体含有聚化合物。 该分散体通过松香材料的均匀混合物和合成上浆剂和聚化合物的均化制备既可以存在于生产或在混合颗粒wässrige分散体加入到。 该分散体被用作在生产的纸,纸板,纸板和类似产品施胶剂。