Pulping of Anogeissus spp. and Tectona grandis (Lops and Tops) for Newsprint

Recently Nepa Paper Mills have installed cold soda plant with facilities far doing hot or semi hot pulping Tectona grandis and Anogeiseus spp. off Cuts as well as lops and tops will be available around Nepa Nagar for their expansion programme. With this end in view effect of concentration of chemicals, sulphidity, temperature and time. were investigated It was found that optimum conditions of pulping were 15% chemicals on o d basic Sulphidity and boiling for one hour. As the pulp of Anogeissus spp. was darker, it requ'red bleaching with 5% available chlorine. The pulps were mixed with 40% bleached Sulphate bamboo pillp have satisfactory strength properties for newsprint.