K‐M theory of fabric knitted by three‐channel rotor spun wool yarn

Abstract

Two‐component and three‐component color blended yarns were spun by red, yellow, and blue wool slivers using a three‐channel rotor spun machine, and the corresponding plain fabrics were knitted. The color‐matching models of K‐M theory were built with the relative method and the least squares method, respectively. Colors and blending ratios of the fabrics were predicted by the model. The results showed that the average color differences of the samples predicted by the two methods are both about 1.0 and the mean value of the proportional error is below 3%. The least squares method has a better color‐matching effect for the three‐component sample, and the relative value method has better color‐matching results for the two‐component sample. When the tolerance range is 2.0, the pass rates of the samples predicted by either the relative value method or the least squares method reach 100%.

Manufacturing Color-Blended Slub Yarn: Computer Numerically Controlled Ring-Spinning Frame and Kubelka-Munk Double Constant Theory

“…However, their relative K/S value remains the same, which is known as the relative value method. 16 Based on the predicted K and S values of each colored fiber, the K/S value of the color-blended fabric at each wavelength can be obtained using Eq. 5, which was used to predict the reflectance of the color-blended fabric by Eq.…”