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    Method of producing medium-grade coated paper for rotogravure printing
    1.
    发明授权
    Method of producing medium-grade coated paper for rotogravure printing 失效
    生产用于轮转凹版印刷的中级涂布纸的方法

    公开(公告)号：US4298652A

    公开(公告)日：1981-11-03

    申请号：US147825

    申请日：1980-05-08

    申请人： Kuzuhiko Suzuki ,  Yasuhiro Fujiki ,  Tojiro Kitahori ,  Akira Takada

    发明人： Kuzuhiko Suzuki ,  Yasuhiro Fujiki ,  Tojiro Kitahori ,  Akira Takada

    IPC分类号： D21H19/38 ,  D21H11/10 ,  D21H19/58 ,  D21H19/84 ,  B32B23/08 ,  B32B27/10 ,  D21H1/28

    CPC分类号： D21H19/84 ,  D21H11/10 ,  D21H19/58 ,  Y10T428/25 ,  Y10T428/277

    摘要： A method of producing medium-grade coated paper for rotogravure printing, which paper, when printed, has fewer missing gravure dots and reproduction of gravure dots is improved.The method comprises applying the following coating composition (A) or (B) to either surface or both surfaces of base paper, the fiber content of which comprises 10 to 100 parts, by weight, high-yield pulp(s) having a 42-mesh fiber fraction content of below 30%, and 0 to 90 parts, by weight, chemical pulp(s): The coating composition (A) comprises pigments containing natural ground calcium carbonate with a specific surface area of 1.5 to 2.5 m.sup.2 /g in a proportion of 5 to (95S-137.5)% by weight ("S" represents a specific surface area (m.sup.2 /g) of natural ground calcium carbonate.), and adhesive of either alkali-sensitive synthetic resin emulsion or a mixture of alkali-nonsensitive synthetic resin emulsion and viscosity increasing agent(s). The coating composition (B) comprises pigments containing natural ground calcium carbonate with a specific surface area of 2.5 to 5 m.sup.2 /g in a proportion of 5 to 100% by weight, and adhesive of either alkali-sensitive synthetic resin emulsion or a mixture of alkali-nonsensitive synthetic resin emulsion and viscosity increasing agent(s).

    摘要翻译： 一种生产用于轮转凹版印刷的中等级涂布纸的方法，其在印刷时具有较少的凹痕凹痕点和凹印点的再现性得到改善。 该方法包括将以下涂料组合物（A）或（B）施用到原纸的任一表面或两个表面上，其中纤维含量为10-100重量份，具有42- 网眼纤维组分含量低于30％，和0至90重量份的化学纸浆：涂料组合物（A）包含含有比表面积为1.5至2.5m 2 / g的天然研磨碳酸钙的颜料， 5〜（95S-137.5）重量％的比例（“S”表示天然磨碎碳酸钙的比表面积（m2 / g）），以及碱敏感合成树脂乳液或碱的混合物的粘合剂 - 不敏感的合成树脂乳液和增粘剂。 涂料组合物（B）包含比例为5〜100重量％的比表面积为2.5〜5m 2 / g的天然研磨碳酸钙的颜料，以及碱敏感性合成树脂乳液或 碱非敏感合成树脂乳液和增粘剂。

    Coated synthetic paper adapted for offset printing and method for production thereof
    2.
    发明授权
    Coated synthetic paper adapted for offset printing and method for production thereof 失效
    适用于胶版印刷的涂布合成纸及其制造方法

    公开(公告)号：US4064304A

    公开(公告)日：1977-12-20

    申请号：US705169

    申请日：1976-07-14

    申请人： Seigoro Fujita ,  Tojiro Kitahori

    发明人： Seigoro Fujita ,  Tojiro Kitahori

    IPC分类号： D21H19/42 ,  D21H1/28 ,  D21H1/34 ,  D21H5/12

    CPC分类号： B41M5/508 ,  B41M5/52 ,  D21H19/42 ,  B41M5/5218 ,  B41M5/5236 ,  B41M5/5254 ,  Y10T428/24901 ,  Y10T428/249978 ,  Y10T428/249986 ,  Y10T428/277 ,  Y10T428/31895 ,  Y10T428/3192

    摘要： A coated synthetic paper adapted for offset printing is produced from a base paper sheet comprising fibrous material, at least 5% by weight of which is formed of polyolefinic pulp fibrils which are formed from a polyolefinic polymer and a hydrophilic polymer, said polyolefinic pulp fibrils having a specific surface area of at least 0.7 square meter/g. A microporous and discontinuous coating layer is formed on at least one of the surfaces of the base paper sheet using a coating composition having an adhesive component and a pigment component, at least 5% by weight of said pigment component being an organic polymer pigment in the form of finely divided particles.

    摘要翻译： 适用于胶版印刷的涂布合成纸由包含纤维材料的原纸制成，其中至少5重量％由聚烯烃聚合物和亲水性聚合物形成的聚烯烃纸浆原纤维形成，所述聚烯烃纸浆原纤维具有 比表面积至少为0.7平方米/克。 使用具有粘合剂成分和颜料成分的涂料组合物在所述原纸的至少一个表面上形成微孔和不连续的涂层，所述颜料成分中的至少5重量％为有机聚合物颜料 细碎颗粒的形式。