Taber stiffness was determined using standard method ASTM
D5342 (ASTM, 2002). Uncoated and coated card paper sheets were cut into samples of 38 70 mm
2
in machine direction (MD) and the cross-machine direction (CD) using a guillotine (Regmed, Brazil). Taber stiffness was measured at an angle of 15 using Taber stiffness equipment (model RI 5000, Regmed, Brazil). Results were expressed in mN. There were at least 15 replicates per experiment