Colorimetric Evaluations and Characterization of Natural and Synthetic Dyes/Pigments and Dyed Textiles and Related Products

Author:

Kumar Samanta Ashis

Abstract

This book chapter covers principles and few case studies on colorimetric Estimation of (i) determining purity/active ingredient % of selective dyes/pigments (ii) Identification of any colorants to distinguish from other similar compound, (iii) Measurement of surface colour strength of a dyed textile, (iv) Measurement of colour differences by estimating DE, DL*, Da*, Db*, DC and DH values, (v)Computer-aided colour match prediction for any standard shades, (vi) Estimation of compatibility of two dyes/colourants to use for compound shades, (vii) Determination of rate of dyeing, dyeing isotherm and dyeing kinetics to control dyeing, (viii) Optimization of dyeing process variables, (ix) Precession grading of Colour Fastness of dyed textiles on fading under different ways/agencies and (x) Estimation of Soil Removal efficacy of different detergent used for textiles. These colorimetric measurements are found to be very useful for effective process and product control of dyed textile materials. Selected Case studies on all the above colorimetric applications with specific example or experimented data are discussed for each of the method under reference. Finally, the other applications of colorimetric analysis besides textiles industry are also mentioned in concluding remarks.

Publisher

IntechOpen

Reference24 articles.

1. CIE Publ. International Lighting Vocabulary. Vol. No. 17.4. 1976 & 1987. pp. 1-5

2. Shah HS, Gandhi RS. Instrumental Colour Measurements & Computer Aided Colour Matching for Textiles. Amhedabad, India: Mahajan Book Distributers; 1990. pp. 76-116

3. Berns RS. Billmeyer and Saltzman’s, Principles of Colour Technology. 3rd ed. New York, USA: John Wiley & Sons; 2000

4. Ohta N, Robertson AR. Colorimetry-Fundamentals and Applications. New York & England: John Wiley & Sons; 2005

5. McLaren K. Colour Science of Dyes and Pigments. 2nd ed. Bristol: Adam Hilger; 1986. pp. 50-87

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