Abstract:

In order to improve the accuracy and practical ability of the color spinning algorithm in practical application, Datacolor SF600 was used to test the color value of the single colored yarn and the mixed yarn of the viscose fiber.On the basis of Friele model parameters Q,The method of [0 1] interval assignment iteration to obtain the optimal value,and compared with the method which needs to calculate an optimal fixed parameter value by a large number of experiments.The two different methods are used to predict the fitting formula and the fitting reflectivity.And calculate the color difference with the standard according to the CMC(l:c) color difference formula.The average color difference is 1.23 when the parameter Q is fixed, and the average color difference is 0.399 when the optimized parameter is not fixed,and then the prediction model of the mixing yarn reflectivity under the experimental condition is established.Select 14 different proportions of three-color blended yarn for spinning verification,the color difference is small, an the matching results of color difference less than 1 can be obtained after correction color for 1-2 times.

Key words: Friele model, model parameter, color difference, color matching prediction, color correction