METHOD FOR MAKING OF PAPER, TISSUE, BOARD OR THE LIKE
    34.
    发明申请
    METHOD FOR MAKING OF PAPER, TISSUE, BOARD OR THE LIKE 有权
    制作纸,纸巾,纸板等的方法

    公开(公告)号:US20150041092A1

    公开(公告)日:2015-02-12

    申请号:US14380323

    申请日:2013-02-22

    Applicant: KEMIRA OYJ

    Abstract: The invention relates to a method for making of paper, tissue, board or the like by using recycled fibre material as a raw material. The method comprises following steps: pulping recycled paper, board or the like in a pulper and obtaining a pulp flow comprising (i) an aqueous phase and (ii) at least recycled fibres and starch having low molecular weight, which are dispersed in the aqueous phase; adding a coagulant agent to the pulp flow or to an aqueous process flow comprising starch having low molecular weight; allowing the coagulant agent to interact with the starch having low molecular weight and optionally forming aggregates; and adding at least one flocculating agent, after the addition of the coagulant agent, to any flow, which comprises interacted coagulant agent, and forming a treated flow with starch comprising agglomerate(s); retaining at least part of the said aggregates and/or the said agglomerates to the fibres or to a web, which is formed.

    Abstract translation: 本发明涉及通过使用再生纤维材料作为原料来制造纸,纸板,纸板等的方法。 该方法包括以下步骤:在碎浆机中制浆再循环的纸,板等,并获得纸浆流,其包含(i)水相和(ii)至少回收的纤维和低分子量的淀粉,其分散在水性 相; 向纸浆流中加入凝结剂或包含低分子量淀粉的含水工艺流程; 使凝结剂与低分子量的淀粉相互作用并任选地形成聚集体; 在加入凝结剂之后,将至少一种絮凝剂加入到包含相互作用的凝结剂的任何流动中,并用包含附聚物的淀粉形成经处理的流体; 将所述聚集体和/或所述附聚物的至少一部分保留在所形成的纤维或纤维网上。

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