The Effect of NSSC Waste Paper Recycling Times on the Properties of the Produced Recycled Pulp

Recycling is a promising approach for rescue of the earth from recoverable solid waste. Among different wastes, paper has a lot of importance. The effects of wastepaper recycling times on properties of their recycled paper have always been considered but less attention has been paid to semi-chemical papers. In this study, the effect of recycling times of NSSC wastepaper on WRV (Water Retention Value), Hornification of fibers, tensile strength index, burst strength index and tear strength index was investigated. Results indicated that successive recycling of NSSC wastepaper presents an identical behavior to successive recycling of chemical wastepapers. WRV, tensile strength index, burst strength index and tear strength index decreased and Hornification of fibers increased.