MIXING OF RECYCLED COLORED OPEN END SPINNING MILL WASTE WITH RECYCLED PULP TO PRODUCE SUSTAINABLE PACKAGING MATERIAL

Abstract

The present invention is related to a process for producing kraft paper or board by mixing the third time recycled colored cotton fiber (RCF) waste with old corrugated container (OCC) pulp. More specifically, the mixture is treated with NaOH solution and cellulase enzymes at certain temperature and time to increase the strength of the sheet. Then the pulp is refined by PFI mill to increase the micro fibrils to develop bonding property. Finally, sheet is produced by using British sheet former in lab scale. Recycled fiber has become an extremely important raw material. Full utilization of recycled fibers in the paper industry not only can ease the shortage of plant fiber resources, but also save the energy consumption, as well as effectively reduce the pollution load caused by papermaking processes. It is obvious that the share of recycled fibers in total raw fiber resources will continue a steadily rising trend. In addition, corrugated container, as an environmental friendly packaging material, is one of the main sources of recycled fibers, with a high degree of recycling for many years, accounting for approximately 40% of the total wastepaper.