In order to measure the color of fabric in the batch dyeing using multi-dyes

a soft-sensing technique based on particle filter is proposed.It uses the particle filtering method to predict the concentration of dyes through the absorbance of dye liquor in the jet dyeing machine and then develops a soft-sensing model applied to predict the color of fabric.The feasibility and validity of the proposed technique in this research is verified by its application to real examples.The results show that the soft-sensing system has better measuring precision and their color differences are all less then 1.0 CIELAB

which meets the technical requirements of dyeing industry.