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## Meet the editor

Dr. Ashis Kumar Samanta currently serves as a consultant in textile chemical processing. He brings extensive experience as a former professor and head of the Department of Jute and Fibre Technology at the University of Calcutta, India. Dr. Samanta has held leadership roles in various committees, notably chairing the TXD-07 committee on specialty Chemicals and dye stuff of the Bureau of Indian Standards (BIS) and the Board of Studies

for the Bachelor of Fashion and Apparel Design (BFAD) program at the University of Calcutta. He is a valued member of WG-31 of the ISO/TC 38 Committee. With a commitment to advancing knowledge in textile science and engineering, Dr. Samanta serves as an associate editor for the AATCC Journal of Research and contributes to the AATCC's Publication Committee. He is also an esteemed editorial board member for prestigious journals such as the Indian Journal of Fibre & Textile Research (IJFTR) and the Journal of The Institution of Engineers (India) Series E. Dr. Samanta's contributions extend beyond academia, as evidenced by his involvement as a RAC and QRT advisory board member for the Indian Council of Agricultural Research-National Institute of Natural Fibre Engineering and Technology (ICAR-NINFET), and his role as an expert member of the Technical Research Advisory Committee for Khadi/Textiles at the Mahatma Gandhi Institute for Rural Industrialization (MGIRI), India. His significant impact on standards development is noteworthy, having contributed to the development of ten BIS Test Standards and five ISO Test Standards for the identification of natural dyes. Dr. Samanta has led 16 R&D projects and 2 Human Resource Development (HRD) training initiatives, showcasing his dedication to advancing the field. As a mentor, Dr. Samanta has guided fifteen Ph.D. students and has authored over 350 publications, including 150 research papers. His outstanding contributions have been recognized with prestigious awards such as the Dr. Triguna Charan Sen Award (1996 and 2014), the Bharat Nirman Award (2014), and an Eminent Engineer Award (2019).

### Contents



Preface

Colorimetry is the science of quantitatively defining, measuring, and communicating a color of any solid, liquid, or semisolid material, instead of subjectively describing it, for evaluating and producing the same color or measuring total color differences and other color interaction parameters like K/S, L\*, a\*, and b\* values, assured by instru-

Color is determined by psychological and physical interactions and the chemical structure of materials influencing its applications. There are many books and monographs available on the basics of color science, colorimetry, color measurements, and so on. However, in today's digital age in which techniques of color evaluations and their applications have advanced greatly, there is a need for updated literature.

Color quantification via advanced techniques has become an essential part of color application for all industries. Initial simple colorimetric measurements have been replaced by spectrophotometric (absorption spectroscopy and reflectance spectroscopy) analysis of colors for different sectors. Moreover, for commercial exploitation, industries are conscious of the importance of color measurement, communications, and precision matching. As such, this book discusses both fundamental and advanced applications of colorimetric analysis for quality assurance of products in terms of color specifications and tolerances acceptable by consumers. The book also presents case studies on practical guidelines along with difficulties and solutions for colori-

Chapter 1: "Advanced Methods and Tools for Color Measuring and Matching: For

Chapter 3: "Application of UV-Visible Spectrophotometric Colour Analysis in

Chapter 6: "Colorimetric Determination of Pyraclostrobin Fungicide Using P-Aminosulphonic Acid Coupling Reagent in Agricultural Soil/Environmental Samples by

Quality Check of Colored Products of Textiles and Apparel Industry"

mental color measurements.

metric analysis.

The book includes nine chapters.

Chapter 2: "Fundamentals of Colorimetry"

Different Natural Product Identification"

Spectrophotometric Analysis"

Chapter 4: "Forensic Analysis of Bloodstain Color"

Chapter 5: "Application of Colorimetry in Food Industries"
