Paper sizing
    2.
    发明授权
    Paper sizing 失效
    纸张尺寸

    公开(公告)号:US4323425A

    公开(公告)日:1982-04-06

    申请号:US132505

    申请日:1980-03-21

    摘要: This invention relates to improved rosin sizes, and to improved methods for preparing sized paper. In one embodiment, sized paper is prepared by adding the improved rosin size and a polyamine retention aid to a pulp slurry before sheet formation, without the use of aluminum sulfate. In another embodiment, paper is surface-sized with the improved rosin size in the absence of both aluminum sulfate and retention aids.

    摘要翻译: 本发明涉及改进的松香尺寸,以及用于制备大小纸的改进方法。 在一个实施方案中,通过在不使用硫酸铝的情况下,将改进的松香尺寸和多胺助留剂添加到纸浆形成之前,将其制备成大小的纸。 在另一个实施方案中,在不存在硫酸铝和助留剂的情况下,纸张具有改进的松香尺寸的表面尺寸。

    Paper sizing agents
    3.
    发明授权
    Paper sizing agents 失效
    造纸剂

    公开(公告)号:US4222820A

    公开(公告)日:1980-09-16

    申请号:US917629

    申请日:1978-06-21

    CPC分类号: C08C19/28 D21H17/16

    摘要: A sizing agent for use in paper-making comprises an aqueous emulsion of at least one compound of the formulae ##STR1## wherein each R.sup.1 represents a hydrophobic group selected from alkyl, alkenyl, aralkyl or aralkenyl groups, where the R.sup.1 groups in either formula may be the same or different and together they contain from 25 to 60 carbon atoms. The sizing agent can be used for either internal or surface sizing, and is effective in the absence of, or in the presence of, a retention aid.

    摘要翻译: 用于造纸的施胶剂包括至少一种式(I)或图像化合物的水乳液,其中每个R 1表示选自烷基,链烯基,芳烷基或芳烯基的疏水基团,其中R 1基团 在任一式中,它们可以相同或不同,一起含有25至60个碳原子。 上浆剂可用于内部或表面施胶,并且在保留助剂不存在或存在的情况下是有效的。