发明授权
US4298652A 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
- 专利标题: Method of producing medium-grade coated paper for rotogravure printing
- 专利标题(中): 生产用于轮转凹版印刷的中级涂布纸的方法
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申请号: US147825申请日: 1980-05-08
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公开(公告)号: US4298652A公开(公告)日: 1981-11-03
- 发明人: Kuzuhiko Suzuki , Yasuhiro Fujiki , Tojiro Kitahori , Akira Takada
- 申请人: Kuzuhiko Suzuki , Yasuhiro Fujiki , Tojiro Kitahori , Akira Takada
- 申请人地址: JPX Tokyo
- 专利权人: Kanzaki Paper Mfg. Co., Ltd.
- 当前专利权人: Kanzaki Paper Mfg. Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX54-58327 19790511
- 主分类号: D21H19/38
- IPC分类号: D21H19/38 ; D21H11/10 ; D21H19/58 ; D21H19/84 ; B32B23/08 ; B32B27/10 ; D21H1/28
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).
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