Lumen loading magnetic paper I: flocculation

Magnetic paper lumen via loading process was prepared from never-dried and dried kraft kenaf pulp. PEI was used as retention aid during the inter-stage treatment. The paper produced from the magnetic pulp showed an increase of magnetic properties as the loading increased. The physical properties of the paper such as tensile index, burst index, tear and folding endurance showed a reduction in the strength value as the loading capacity increased. The flocculation study shows that the magnetic colloid exists in multi particles aggregates form in water solution, which caused by magneto-dipole interaction.