Study on the Color of Nylon BCF Loop Pile Carpets

The behaviour of the occurrence of color in a loop pile carpet is still unknown hitherto.This study has investigated the color of nylon BCF loop pile carpet and lateral side of pile yarn by using a variety of colorimeters.The main results obtained are as follows :1) To measure the color, the area to be measured should be varied according to the aim of measurement.2) To give the color to loop pile carpet, the relationship should be clarified between chromaticity point (x, y) and the Y-values of lateral side of yarn and loop pile carpet.3) The color of a color-mixed loop pile carpet shows the weighted average of chromaticity point of each monochrome or fundamental color. in addinion, the Y-value of loop pile carpet shows the average Y-value of each monochrome of loop pile carpet.4) The colorimetry of bright portion (top of the loop) and dark portion (bottom between two loops) has shown the remarkable color difference between bright and dark portion. (ΔE∗ab_??_30)5) The loop pile carpet tends to be more affected by the color of the light source with increasing the incidence-receiving angle.