纬全显色提花织物的混配色算法研究

为了使用Kubelka-Munk双常数理论求出纬全显色提花织物的单纱表面比例和预测织物颜色,首先使用最小二乘法计算单纱的吸收系数K和散射系数S.采用红、黄、蓝、绿4种颜色为纬纱,按两组分不同比例混合交织得到单经双纬的纬全显色提花织物试样并对其颜色进行测量,求出K值和S值后,得到纬全显色提花织物的配色算法、并对织物中各纬纱颜色的表面比例进行预测.在所测试的60个试样进行颜色匹配,色差约为1.5个CIELab单位,对于拟合得到的单纱比例误差也在2.1％左右,表明该模型可以较好地解释纬全显色提花织物颜色与各单纱颜色比例之间的关系.

Research on the Color-Match Algorithm of Pre-Colored Weft-All-Coloring Jacquard Fabric

In order to predict the color and proportion of single yarn’s surface at weft-all-coloring jacquard fabric based on the theory of Kubelka-Munk with double constant,the authors calculate the absorption coefficients(K) and scattering coefficients(S) with the least square method.This paper uses four primary samples,red,yellow,blue and green yarn to prepare many blend-color fabrics.Through a large number of exprimental color about a datacolor 600 plus spectrophotometric,the authors can calculate the theory of Kubelka-Munk absorption coefficients(K) and scattering coefficients(S) of all yarns and color proportion of weft jacquard fabric with all-coloring.The results indicate that the color difference is 1.5 CIELab units,and the fitting error of the yarn’s proporation is 2.1%.It shows that the model is suitable for predicting the color of weft jacquard fabric with all-coloring and color proportion.