Low consistency refining of art Old Newspaper/Old Magazine deinked pul
p was examined in pilot and mill Dials to define optimal intensity and
energy requirements for maximum pulp property development. Results in
dicate that low intensity refining (Specific edge load < 0.5 W.m/s and
energy levels of 70-100 kWh/t) are required to maximize strength prop
erties. Fractionation followed by refining of the long fibre fraction
also showed large improvements in strength properties.