Procedure and apparatus for determining the concentrations of dyes in a mixture, with application to the continuous monitoring of a dye bath.

摘要

The device for determining the concentrations of dyes in a mixture (7) comprises preparation means capable of preparing a mixture to be analysed (2), starting from the mixture (7), and bringing it into an analysis cell (3) of a spectrophotometer (1) for measuring the spectral response of the mixture to be analysed (2), and computer means (4) capable of decomposing the measured spectral response into a sum of spectral responses of solutions of a pure dye at a determined concentration. Use in particular for monitoring dye baths for textile fibres. <IMAGE>