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    • 2. 发明公开
    • Absorbent paper comprising polymer-modified fibrous pulps and wet-laying process for the production thereof
    • 与聚合物的吸收性纸的纤维改性纸浆和处理用于通过湿法成网制备。
    • EP0408128A2
    • 1991-01-16
    • EP90201814.2
    • 1990-07-06
    • THE PROCTER & GAMBLE COMPANY
    • Mackey, Larry NeilSeyed-Rezai, Seyed Ebrahim
    • D21H23/02D21F11/00D21H11/20
    • D21H11/20A61L15/28C08L1/08
    • Processes are described for making highly absorbent tissues and towels by wet-laying pulps comprising particular polycarboxylate polymer-modified fibrous pulps such as mildly hydrolyzed methyl acrylate-grafted softwood kraft pulps; these pulps have distinct protonated and alkall-metal-cation-exchanged states. The wet-laying processes are adapted to exploit the very different behavior of the polymer-modified fibrous pulps in function of the two states. The preferred wet-laying processes described herein are continuous processes embodying one or more on-line chemical treatment steps which chemically switch state of the polymer-modified fibrous pulp component in a wet web on the papermaking machine to improve the processing thereof by averting or minimizing tendencies to mechanically or thermally degrade.
    • 方法被描述为通过湿法成网纸浆包含的特殊聚羧酸酯聚合物改性的纤维纸浆制造高吸收性组织和毛巾:如轻度水解的丙烯酸甲酯接枝的软木纸浆力; 论文纸浆具有不同的质子化和alkall - 金属 - 阳离子交换的状态。 的湿法成网工艺angepasst利用在两个状态中的功能聚合物改性的纤维纸浆的非常不同的行为。 在描述的优选湿法成网过程是连续的过程体现的一个或多个上线其在湿纸幅化学切换聚合物改性的纤维浆粕的组件的状态在造纸机的化学处理步骤,通过避免或减小提高其处理 倾向机械或热降解。