(199d) Evaluation of Quality of Agricultural Residue Based Coated Papers Using Plackett Burman Statistical Design

Paper is pigment coated to produce a more uniform and more receptive surface for printing ink for better graphic reproduction. Large numbers of variables are involved in coating process which interacts with each other. In order to perform the coating experiments on indigenous base papers made from the furnish of agricultural residue pulp in a most systematic way with many variables, statistically designed experiments based on Plackett Burman design has been employed for examining the effects of different process variables. The variables considered were dosages of china clay, talc, natural and precipitated calcium carbonate, binder, total solids of coating color and thickener dosage (water retention chemicals). Based on the experiments the effects of above process variables on different properties of coated paper were identified