Spectrophotometric color matching algorithm of jacquard fabric with all colored wefts based on Kubelka-Munk double constant theory

Color design has been a long-standing problem in jacquard fabric production,because there is a great variety of fabric structures and single color yarns.For obtaining a color development model of jacquard fabric with all colored wefts,five kinds of colored wefts,that is,black,white,red,green,and yellow,were used and they were divided into two groups according to different proportions and then applied to interweaving of an all colored weft jacquard fabric with single warp and two wefts.Through a great deal of experiments,the single yarn absorption coefficient(K) and scattering coefficient(S) in the double constant theory of Kubelka-Munk was calculated by using the least square method,therefore the spectrophotometric color matching algorithm of jacquard fabric with all-colored wefts was obtained.The algorithm was used to predict the proportion between different colored wefts for certain color effect on the surface of the jacquard fabric.The results show that the Kubelka-Munk double constant theory can well explain the relationship between proportion of different colored wefts and the color of jacquard fabric with all colored wefts.