1986 Volume 40 Issue 12 Pages 1137-1144
Quality requirement of paper depend on its end use. Major use of wood-containing printing paper is for magazines, school textbooks, notebooks and other books. Use of wood-containing paper for advertising insert is incresing recently. Sensory evaluation on 7 wood-containing papers in the market was carried out. Based on the answers from large number of panelists, paper quality for various end use and correlation between sensory evaluation and physical test are discussed. Whiteness of paper is just opposit to opaqueness, thus the whiter the paper, the worse the opaqueness. Formation did not correlated with thickness, but with two-sidedness and smoothness.
Three major factors for the paper quality evaluation were confirmed to be surface, mechanical and optical properties. It was also became clear that the suitable paper for magazines and books were the kind of paper which was white, but less opaque, and had smooth texture. On the other hand, textbooks and notebooks required the paper with opaque, slightly yellowish color and less smooth surface.
