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。