| 摘要 |
PURPOSE:To obtain the subject coated paper, having high smoothness without any difference between the front and the back sides and useful as coated paper for printing with good productivity, by regulating elastic rolls of a heated calendar so as to satisfy specific conditions. CONSTITUTION:Base paper is coated with a water-based coating consisting essentially of a pigment and an adhesive, dried and passed through a heated calender consisting of metallic rolls and elastic rolls heated at >=100 deg.C to finish surfaces. In the process, the above-mentioned elastic rolls are regulated so as to have surface roughness satisfying conditions of RMAX<=-0.1D-0.01T+40 [RMAX is surface roughness (mum) of the elastic rolls; D is Shore hardness D ( deg.) of the elastic rolls; T is surface temperature ( deg.C) of the metallic rolls in operation]. Thereby, the aimed coated paper is obtained. |
