Abstract:

Aiming at the problems of low efficiency of color management and long transmission cycle of color samples in color spinning industry, a colorimetry index joint model based on discrete Fréchet distance criterion and color difference analyzing formuls was proposed. Meanwhile, based on cluster analysis theory, the discriminant criterion of colorimetry index based on "intra class distance" and "inter class distance" was established,  and used for the analysis on the coloration characteristics and influencing factors of colored spun fabric based on primary-color fibers blending. The results show that the joint model and discriminant criterion of colorimetry index has ideal stability and adaptability. When the quality ratio difference of primary-color fibers is greater than 1%, the colorimetry index of colored spun fabric has significant difference. At the same time, the difference of length, type, and twisting coefficients of primary-color fibers will cause significant differences in colorimetry index of colored spun fabric. The result has a positive guiding role in the final establishment of the prediction model of the mixed color of the primary-color fibers and the practice and production of t color spinning enterprise.

Key words: primary-color fiber, colored spun fabric, coloration characteristic, colorimetry index, color difference, significant difference