재활용폐지 유래 기름반점 제어효율 평가

Abstract

The paper recycling becomes more important technology in terms of the reduction of the municipal waste and of saving natural resource such as wood. However the more utilization of recycled fiber would resultin the higher contaminants in the papermaking processes and in the deterioration of the paper quality. Theoil marks in the paper products becomes one of the major defects of paper products originated from paper recycling. The coagulation of various stickies in recycled fiber stock led to the oil marks. In this work,we applied functional polymer additives such as the dispersing agents, the fixing agents and the hydrophobic talc powder for the control of those stickies in order to remove the oil marks. The addition of thetalc powder showed the great reduction in the oil marks of the packaging paper products. The hydrophobicsurface of the talc particles collected the individual sticky materials and prevented their aggregationin the recycled fiber stock, which resulted in the great reduction of the oil marks on the paper products.