Abstract:

Objective The color spun yarn made by blending two or more colored fibers has a rich and three-dimensional color effect on the fabric. Compared with traditional fabric dyeing methods, it has the advantages of low energy consumption and less pollution. The preparation of full color gamut blended yarns is an urgent problem in the wool spinning industry. To solve it, this paper investigates how to prepare full color gamut blended yarns towards the chromatic circular color model by blending seven primary color of wool fibers.

Method Based on the color distribution characteristics of the chromatic circle color model, the seven primary colors of red, yellow, green, cyan, blue, magenta and grey are selected as the panchromatic color matching system, and the full color gamut grid color mixture model is constructed based on the ternary coupling-combination color mixing mode, which establishes the correlation between the blending concentration of the primary color fibers and the color values of the full-color gamut grid points. The blending formulation of the blended yarn was planned based on the primary color fibers blending concentration at the grid points of the full color gamut grid color mixture model, according to which the seven primary color fibers were weighed and blended, and then the full color gamut blended yarns were prepared by the spinning process. Based on the above theory, a full color gamut grid color mixture model containing 241 grid points was constructed, according to which, 241 kinds of blended yarns and knitted fabrics were prepared by blending seven primary color fibers, and their color presentation was investigated according to the measured color values of the fabrics.

Results The knitted fabrics of blended yarns exhibits a uniform color effect, indicating that the fiber fusion degree in the blended yarn formed by blending the preferred seven primary color fibers according to the full color gamut grid color mixture model is good. The measured chromatograms of knitted fabrics and the theoretical mapping chromatograms of the seven primary color fibers full color gamut grid color mixture model show the same color change rule, both achieving gradual changes in hue, saturation and lightness within the color gamut, indicating the successful preparation of full-color gamut blended yarns.

Conclusion To realize the preparation of full color gamut blended yarns, a full color gamut grid color mixture model is constructed based on the preferred seven primary color fibers to research the preparation and color matching of full color gamut blended yarns. The results indicate that the fiber fusion degree of the full color gamut blended yarn prepared by the seven primary color fibers according to the full color gamut grid color mixture model was good, and the color of the knitted fabric achieved a gradual change in hue, saturation and lightness within color gamut of the seven primary color mixing, thus realizing the preparation of full color gamut blended yarns.

Key words: blended yarn, seven wool fiber, seven primary color fiber, color mixing mode, full color gamut matching