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    • 5. 发明公开
    • 일시적습윤강도를갖는페이퍼
    • 潮湿强度纸
    • KR1020000005091A
    • 2000-01-25
    • KR1019980707722
    • 1997-03-25
    • 더 프록터 앤드 갬블 캄파니
    • 스미스데이비드제이헤드램마이클마틴
    • D21H21/20D21H17/28D21H17/29
    • D21H21/20D21H17/24D21H17/28D21H17/29D21H17/31D21H17/32D21H17/37D21H17/375D21H23/08
    • PURPOSE: A paper product is provided to have a satisfactory initial wet strength and a wet strength reducing rate by including polyaldehyde polymer and polyhydroxy polymer. CONSTITUTION: The present invention relates to paper products having temporary wet strength. The paper products contain cellulosic fibers that are treated with a polyaldehyde polymer having free aldehyde groups and a water soluble polyhydroxy polymer. The initial wet strength obtained with the combined use of these materials is significantly greater than that obtained by use of either the polyaldehyde or polyhydroxy polymer alone. At the same time, the wet strength decays at a rate that is rapid enough to enable the paper product to be flushed under conditions of normal use. Preferred polyaldehydes include cationic, aldehyde functionalized starches and cationic, aldehyde functionalized polyacrylamides. Preferred polyhydroxy polymers are polysaccharides having cis-hydroxyl groups in at least a portion of the main polymeric chain (i.e., polymer backbone). Preferred polysaccharides include those derived from one or more sugars selected from man nose, galactose, allose, altrose, gulose, talose, ribose, and lyxose. Economically preferred polysaccharidesare guar gum, locust bean gum and ionic derivatives thereof. The polysaccharide is preferably a neutral polysaccharide or a charge balanced mixture of polysaccharides.
    • 目的:提供纸产品,通过包括聚醛聚合物和多羟基聚合物具有令人满意的初始湿强度和湿强降低率。 构成:本发明涉及具有临时湿强度的纸制品。 纸产品含有用具有游离醛基的聚醛聚合物和水溶性多羟基聚合物处理的纤维素纤维。 通过组合使用这些材料获得的初始湿强度显着大于单独使用多醛或多羟基聚合物获得的初始湿强度。 同时,湿强度以足够快的速度衰减,使得纸张产品在正常使用的条件下被冲洗。 优选的多醛包括阳离子,醛官能化淀粉和阳离子,醛官能化聚丙烯酰胺。 优选的多羟基聚合物是在主聚合物链(即聚合物主链)的至少一部分中具有顺式 - 羟基的多糖。 优选的多糖包括衍生自一种或多种选自人鼻,半乳糖,阿洛糖,阿卓糖,古洛糖,托洛糖,核糖和莱索糖的糖的那些。 经济上优选的多糖是瓜尔胶,刺槐豆胶及其离子衍生物。 多糖优选为中性多糖或多糖的电荷平衡混合物。