Method for removing contaminants from fibers in recycle fiber pulping
    1.
    发明公开
    Method for removing contaminants from fibers in recycle fiber pulping 审中-公开
    用于从纤维中除去污染物在废纸的溶解过程的方法

    公开(公告)号:EP1118706A3

    公开(公告)日:2002-05-08

    申请号:EP01300162.3

    申请日:2001-01-09

    IPC分类号: D21C5/02 D21B1/32

    摘要: An improved process for the separation of cellulosic fiber from difficult to process coated and inked paper products is disclosed and claimed. This process readily separates the paper pulp fraction substantially free of contaminants from such waste paper products as single and two side polymeric coated board having wet strength resin, single and two side polymeric coated board having no wet strength resin, single and two-sided glossy printer trimmings, ultraviolet (UV) cured ink coated stocks, and mixtures thereof. Preferred embodiments include a process in an inclined pressure vessel equipped with agitating and rotating means operative to reflux the waste material with respect to the inclined axis of the vessel in the presence of steam and chemical aids for a sufficient period of time so as to bring about repulping and separation of the paper fiber fraction and formation of a contaminant-collecting polymer phase. The recovered paper pulp fraction is suitable as a feedstock in the manufacture of a variety of paper products including paper tissue and paper towel products.

    Method for removing contaminants from fibers in recycle fiber pulping
    2.
    发明公开
    Method for removing contaminants from fibers in recycle fiber pulping 审中-公开
    用于从纤维中除去污染物在废纸的溶解过程的方法

    公开(公告)号:EP1118706A2

    公开(公告)日:2001-07-25

    申请号:EP01300162.3

    申请日:2001-01-09

    IPC分类号: D21C5/02 D21B1/32

    摘要: An improved process for the separation of cellulosic fiber from difficult to process coated and inked paper products is disclosed and claimed. This process readily separates the paper pulp fraction substantially free of contaminants from such waste paper products as single and two side polymeric coated board having wet strength resin, single and two side polymeric coated board having no wet strength resin, single and two-sided glossy printer trimmings, ultraviolet (UV) cured ink coated stocks, and mixtures thereof. Preferred embodiments include a process in an inclined pressure vessel equipped with agitating and rotating means operative to reflux the waste material with respect to the inclined axis of the vessel in the presence of steam and chemical aids for a sufficient period of time so as to bring about repulping and separation of the paper fiber fraction and formation of a contaminant-collecting polymer phase. The recovered paper pulp fraction is suitable as a feedstock in the manufacture of a variety of paper products including paper tissue and paper towel products.

    摘要翻译: 用于纤维素纤维的从难以分离的改进方法,以处理所涂覆和着墨纸产品是游离缺失盘和要求保护的。 这个过程随手纸浆馏分基本上不含污染物从寻求废纸产品为单和两个侧聚合物涂覆板,其具有湿强度树脂,单和不具有湿强度树脂两个侧聚合物涂层板,单和双面打印机光泽分离 装饰带,紫外(UV)固化的油墨涂覆的股票,以及它们的混合物。 优选实施方案包括在配备有搅拌和旋转装置操作相对于回流废物材料在蒸汽和化学助剂的存在下,容器的倾斜轴线的一段足够的时间,以使大约倾斜压力容器内的过程 再制浆和污染物收集聚合物相的纸纤维部分和形成的分离。 将回收的纸浆分数是适合作为在各种纸产品,包括薄纸和纸巾产品的制造的原料。