| abstract |
A molding base paper used for forming paper vessels such as a cup or tray for foods and various industrial products is disclosed which satisfies the following conditions (1) to (4): n (1) a tensile strength (JIS-P 8113) of at least 2.0 kN/m, n (2) an elongation at break (JIS-P 8113) of at least 1.5 %, n (3) a critical compression stress, defined by the following formula, in the range of 1 to 10 MPa: n critical compression stress = A/B n wherein A represents the compression strength determined by JIS-P 8126, and B represents the area of loaded part of the test piece in the determination of the compression strength, and n (4) an amount of the compression deformation, caused by applying compression stress of 20 kgf/cm 2 in thickness direction, of at least 10%. n The paper vessels are prepared by controlling the water content of the molding base paper at 10 to 20% and then drawing the molding base paper at 100 to 150° C. |