合成高分子系床仕上材料のよごれの評価指標および評価方法の提示 : 合成高分子系床仕上材料のよごれの評価方法に関する研究(その3)

抄録

This paper, Part 3 of the study, presents an index and a method for instant evaluation of the state of stains on polymeric floor finishing materials. The procedure of the present study was as follows : 1. The applicability of an accelerating device for stains, which had beem reported in Part 2, was again proved by the similarity of stains of products to that of the actually exposed materials. 2. The evaluating scale for measuring the grade of stains was created through a sensory test. In this sensory test, the method of rank-order was employed using twenty adult men who were interested in stains of floor finishings. 3. From the relation of the evaluating scale to average color differences, an index for evaluating stains on ploymeric floor finishing materials was presented. 4. The procedure of instant evaluation for stains on polymeric floor finishing materials was : (1) to produce stains on a sample material by means of the accelerating device, (2) to measure the average color difference of the artificially stained sample, (3) to estimate the average color difference of an acctually exposed material by the result of artificial staining, (4) to evaluate the degree of stains on the sample using the index obtained above.