Caustic-Free Repulping for Newsprint Production - Part 1, 1999 Pulping Conference Proceedings
Daniel J. Dingman & Christopher D. Perry
Buckman Laboratories International
Results of laboratory studies show that under optimized conditions a deinked pulp of high quality can be produced using caustic-free repulping. Response Surface Methodology was used to compare the quality of flotation deinked ONP/OMG pulps produced using conventional alkaline repulping with those produced by caustic-free repulping. Brightness, ERIC, and Color (L*, a*, b*) were compared.