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    Filled paper
    5.
    发明授权
    Filled paper 失效
    填充纸

    公开(公告)号：US4240870A

    公开(公告)日：1980-12-23

    申请号：US74317

    申请日：1979-09-11

    申请人： Hiroji Shibazaki ,  Setsuji Edagawa ,  Hisashi Hasegawa

    发明人： Hiroji Shibazaki ,  Setsuji Edagawa ,  Hisashi Hasegawa

    IPC分类号： C09C1/00 ,  C09C1/02 ,  D21H17/67 ,  D21H3/78

    CPC分类号： D21H17/675

    摘要： The filled paper is filled with at least one of (i) a calcium carbonate in the form of particles comprising a core about 0.5 to about 6.5 .mu.m in average diameter and about 100 to about 4000 projections formed on the surface of the core and having a length (L) of about 0.25 to about 2.00 .mu.m, a diameter (D) of about 0.08 to about 0.20 .mu.m and an aspect ratio (L/D) of about 3 to about 10, the calcium carbonate having a void volume of about 1.0 to about 1.8 ml/g and an oil absorption of about 45 to about 60 ml/100 g, and (ii) a calcium carbonate in the form of particles comprising a core about 0.2 to about 2.0 .mu.m in average diameter and about 100 to about 4000 projections formed on the surface of the core and having a length (L) of about 0.15 to about 4.00 .mu.m, a diameter (D) of about 0.05 to about 0.20 .mu.m and an aspect ratio (L/D) of about 3 to about 20, the calcium carbonate having a void volume of about 1.8 to about 3.3 ml/g and an oil absorption of about 50 to about 100 ml/100 g.The paper has increased stiffness and enhanced opacity with reduced weight.

    摘要翻译： 填充的纸填充有以下中的至少一种：（i）颗粒形式的碳酸钙，其包含平均直径约0.5至约6.5μm的芯和在芯的表面上形成的约100至约4000个突起，并且具有 约0.25至约2.00μm的长度（L），约0.08至约0.20μm的直径（D）和约3至约10的纵横比（L / D），所述碳酸钙具有空隙体积 约1.0至约1.8ml / g，吸油量为约45至约60ml / 100g，和（ii）包含平均直径为约0.2至约2.0μm的芯颗粒形式的碳酸钙，以及 在芯的表面上形成约100至约4000个突起，其长度（L）为约0.15至约4.00μm，直径（D）为约0.05至约0.20μm，纵横比（L / D ）为约3至约20，碳酸钙具有约1.8至约3.3ml / g的空隙体积和约50至约100ml / 100的吸油量 G。 该纸具有增加的刚度和增强的不透明度，减轻重量。