1994 Volume 48 Issue 3 Pages 476-484
A sensory value of sheet formation for wood-free papers and Xerography papers has been determined quantitatively by the Sheffe's paired comparison method as in a previous paper of this study. This made possible to compare the results on subjective test with physical properties of paper because the sensory value obtained as an “estimated main effect” was not discrete but continuous in contrast to the ranking. The comparison led to the following conclusions :
1. The physical properties such as basis weight, caliper and optical properties showed poor correlations with the subjective evaluation of sheet formation.
2. Most of the sheet formation testers might be able to determine the subjective evaluation of sheet formation.
3. There was a good correlation between sheet formation with a beta radiography and the sensory value. However it should be noted that some paper with the same local mass variation showed a different sensory value, and vice versa.
