The bleached pulp was used for the production of handsheets
according to the TAPPI standard method (T205 sp-95. Forming
handsheets for physical tests of pulp). The physical properties of
the handsheets were tested according to TAPPI test methods, i.e.,
the density (T410 om-98, T411 om-97), the breaking length (a
measure of tensile strength; T494 om-96), the drainage (T221
cm-99), the brightness (ISO 2470), and the opacity (ISO 2471).
The brightness and the opacity were measured using the Color
Touch model manufactured by Technidyne Co. All the data are
averages of results from triplicate experiments, unless otherwise
indicated.