基于Friele模型的彩色纤维混色配方算法

为提高色纺纱配色算法在实际应用中的准确性及实用性,首先采用Datacolor SF600测试粘胶原液染色散纤维单色纱和混色纱的颜色值;然后基于Friele模型参数,采用对未知参数进行区间0 1]赋值迭代取最优值的方法,与需要通过大量实验计算出最优固定参数值的方法对比,用这2种不同方法预测其拟合配方与拟合反射率,并根据CMC(l∶c)色差公式计算其与标准样的色差。对比得出,当模型参数固定时,平均拟合色差为1.23,而优化后参数不固定时,平均拟合色差为0.399,进而建立了本文试验条件下的混色纱线反射率的预测模型。选取14种不同比例的三色混纺纱进行纺纱验证,其色差较小,经过1~2次修正即可得到色差小于1的配色结果。

Color fiber mixing formula algorithm based on Friele model

In order to improve the accuracy and practicability 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 for 0 1] interval assignment iteration to unknown parameter was adopted to obtain the optimal value,and the comparison with the method which needs to calculate an optimal fixed parameter value by a large number of experiments was carried out.The two different methods were used to predict the fitting formula and the fitting reflectivity,and the color difference with the standard according to the CMC (l:c) color difference formula was calculated.The comparison results show that 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.14 different proportions of three-color blended yarn were chosen for spinning verification,and the color difference is small,an the matching results of color difference less than 1 can be obtained after correcting color for 1-2 times.