Dyeing absorbance spectra prediction apparatus and method for mixed dye

A dyeing absorbance spectra prediction apparatus for a mixed dye, comprising:

• an input module configured to receive a customer's order for dyeing and colorimetric reflectance data of a dyeing result;
• a database configured to store absorbance data for each concentration for monochromatic dyes and dyeing absorbance data;
• and
• a processor operatively coupled to the input module and the database,
• wherein the processor generates the absorbance data for each concentration on the basis of reflectance data for each concentration for the monochromatic dyes, generates the dyeing absorbance data according to concentration of each dye on the basis of absorbance of a dye bath before and after dyeing of the monochromatic dyes, then predicts a dye mixing ratio for the mixed dye corresponding to a computer color matching (CCM) value of the customer's order and absorbance to predict first spectra, predicts second spectra of the dyeing absorbance with respect to the first spectra, then converts the colorimetric reflectance data of the customer's order into absorbance data to implement third spectra, compares the second spectra with the third spectra, and outputs a comparison result.