akd was present or how the occurrence could be prevented negatively such dust tended to disrupt the operation of printing presses and converting machines continued experimentation and development resolved the 34 dusting 34 phenomena by increasing the relative quantity of sodium bicarbonate buffer present in the surface size mixture to the 0 125 to 0 150 range described above nevertheless it remains unobvious as to why the buffer concentration needs to be this high mechanical and other properties respective to paper produced according to the table i size formulations during the said six trial periods were measured and recorded table ii below describes representative averages corresponding to the present invention sizing process and to the control process respectively table ii__________________________________________________________________________ control inventiontrial range average 1 2 3 4 5 6 average__________________________________________________________________________basis weight g m sup 2 197 201 199 204 171 170 204 198 198 caliper u03bcm 263 267 265 256 211 211 256 262 262 coated brightness elrepho 79 4 79 4 81 2 81 6 81 3 81 7 82 3 81 6 81 6sheffield smoothness 94 165 120 31 15 27 52 47 74 41coated sidesheffield smoothness 208 230 220 175 173 164 181 206 234 189uncoated side2 min 20 lactic 25 30 27 5 39 38 33 28 41 29 35acid cobb g m sup 2hydrogen.