Formulation prediction of polyester/viscose two-component three-color blended fiber based on Kubelka-Munk double constant theory
In order to improve the efficiency of the color matching of the two components of the pigment polyester/viscose,based on Kubelka-Munk double constant theoretical model,three monochrome(bright red,royalblue G,golden yellow)polyester staple fiber and three monochrome(bright red,blue,yellow)viscose staple fiber were selected as the research objects,two-component fibers color mixing was carried out with 6 monochromatic fibers,according to 9 different mixing ratios,54 kinds of three-color mixed-color two-component fiber samples were obtained.The color characteristic parameters,such as reflectance(R),color depth(K/S),brightness(L),red green chromaticity(a)and yellow blue chromaticity(b),were measured by spectrophotometer,the least square method was used to process the data.Finally,the error between the calculated color mixing ratio and the actual color mixing ratio was evaluated.The applicability of Kubelka-Munk two-constant theory model in two-component color mixing was veri-fied.The results show that the color differences of 54 samples are all below 1.0,the mean is 0.277 5 and the standard deviation is 0.217 7,the differences between the predicted ratio and the actual ratio are small,the average ratio error of the combination of red polyester with blue and yellow viscose is the smallest,1.109%,indicating that the ratio prediction effect is good.The average color difference of the combination of yellow polyester with red and blue adhesive is the smallest,which is 0.172 1,indicating that the color prediction is good.
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