Abstract
1) As regards viscoelastic properties of paper of z-direction (perpendicular to paper surface), it was showed that its properties were able to same treated as other two directions.
In compressed case, reciprocal curse for tensile curse was obtained. Apparent Young's modulus of Z-direction was known 109 dyne/cm2 as order, less than x, y direction and from this fact simple consideration about the calendering was made.
2) About the smoothness of paper, assuming the strain due to the press N^hich was added to paper surface is proportional to smoothness, straight line relation of compressed stressismoothness was explained, and adaptable region of this straight line relation was derived from the s aloe of apparent Young's modulus and second Young's modulus, fits experimental data considerably.
