Process for improving dry strength and drainage of paper and paperboard
    1.
    发明申请
    Process for improving dry strength and drainage of paper and paperboard 审中-公开
    改善纸张和纸板干燥强度和排水的工艺

    公开(公告)号:US20060162886A1

    公开(公告)日:2006-07-27

    申请号:US11338049

    申请日:2006-01-24

    IPC分类号: D21H21/10 D21H21/18 D21H17/55

    摘要: A process is provided of providing glyoxylated polymer additives to a paper making process which brings about improvements in drainage properties of a cellulosic pulp material along with the ability to increase the dry strength of a resulting paper product. The process uses concentrated glyoxal to generate a working solution of a glyoxylated polymer additive which can be generated on site in a paper mill and used within a 24 to 48 hour interval. The ability to glyoxylate polymers in a working solution concentration provides for a more active additive and which can be supplied in a more economical fashion than conventional glyoxylated polymers.

    摘要翻译: 提供了一种方法,用于在造纸过程中提供乙醛酸聚合物添加剂,其引起纤维素浆料的排水性能的改善以及增加所得纸制品的干强度的能力。 该方法使用浓缩的乙二醛产生可在造纸厂中现场产生的乙醛酸聚合物添加剂的工作溶液,并在24至48小时的间隔内使用。 以工作溶液浓度乙醛酸化聚合物的能力提供了比常规乙醛酸化聚合物更经济的方式提供更活泼的添加剂。