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    Aramid-based paper with improved properties
    1.
    发明授权
    Aramid-based paper with improved properties 有权

    公开(公告)号：US11686048B2

    公开(公告)日：2023-06-27

    申请号：US17059021

    申请日：2019-05-27

    申请人： TEIJIN ARAMID B.V.

    发明人： Antonius J. J. Hendriks ,  Yen Vu ,  Ernst Michael Winkler ,  Jan-Cees Tiecken

    IPC分类号： D21H13/26 ,  D04H1/4342 ,  D04H1/587 ,  D21H17/55 ,  D21H27/08

    CPC分类号： D21H13/26 ,  D04H1/4342 ,  D04H1/587 ,  D21H17/55 ,  D21H27/08

    摘要： An aramid-based paper comprising at least 90 wt. % of aramid material, the aramid material including at least one of aramid shortcut and aramid fibrid, the paper including at most 40 wt. % aramid pulp, calculated on the total amount of aramid material, wherein the paper includes 0.1-10 wt. % of polyamido-amine epichlorohydrin (PAE). It has been found that the incorporation of 0.1-10 wt. % of polyamido-amine epichlorohydrin (PAE) into an aramid-based paper including at least 90 wt. % of aramid material calculated on the weight of the paper not including the PAE, the aramid material including at least one of aramid shortcut and aramid fibrid, the paper including at most 40 wt. % aramid pulp, leads to a surprising improvement of the z-strength and the tear strength of the paper.

    Oil-Resistant Filter Wrapper Paper
    9.
    发明申请
    Oil-Resistant Filter Wrapper Paper 有权
    耐油滤芯纸

    公开(公告)号：US20150059996A1

    公开(公告)日：2015-03-05

    申请号：US14536973

    申请日：2014-11-10

    申请人： DELFORTGROUP AG

    发明人： Roland Zitturi ,  Dietmar Volgger ,  Dieter Möhring

    IPC分类号： D21H27/08 ,  A24D3/06 ,  A24D3/02

    CPC分类号： D21H27/08 ,  A24D1/02 ,  A24D3/02 ,  A24D3/06 ,  A24D3/061 ,  D21H15/06 ,  D21H17/28 ,  D21H17/30 ,  D21H17/31

    摘要： A method of producing a filter wrapper paper for a smoking article is described. The paper has a content of long-fiber pulp of at least 30 wt %, preferably at least 40 wt %, relative to the pure fiber mass of the paper. The freeness of the long-fiber pulp as per ISO 5267, Schopper-Riegler method, is between 80° SR and 100° SR, preferably between 85° SR and 95° SR. The filter wrapper paper has a filler content of less than 10 wt %, preferably less than 8 wt %, and especially preferably less than 6 wt % relative to the total mass of the paper and is impregnated with a material that is suitable for forming an aqueous composition, more particularly an aqueous solution or an aqueous suspension. The oil-resistance of the filter wrapper paper has a KIT level of at least 4, preferably at least 5, according to TAPPI T559 cm-02.

    摘要翻译： 描述了一种生产用于吸烟制品的过滤包装纸的方法。 纸相对于纸的纯纤维质量具有至少30重量％，优选至少40重量％的长纤维纸浆含量。 根据ISO 5267，Schopper-Riegler方法，长纤维纸浆的游离度在80°SR和100°SR之间，优选在85°SR和95°SR之间。 过滤包装纸的填料含量相对于纸的总质量小于10重量％，优选小于8重量％，特别优选小于6重量％，并且浸渍有适于形成 水性组合物，更特别是水溶液或水性悬浮液。 根据TAPPI T559cm-02，过滤包装纸的耐油性具有至少4，优选至少5的KIT水平。