Development of Distinct Denim Shades Through Controlled Washing Process

Abstract

In order to meet the increasing demand for a variety of aesthetic finishes in the textile sector while maximizing production efficiency and reducing environmental effect, this thesis explores the creation of distinct denim hues through a carefully regulated washing procedure. Conventional denim washing frequently entails subjective control, which can result in uneven outcomes and wasteful resource usage. The impact of several factors, such as enzyme concentration, bleaching agent type and dose, washing time, temperature, and mechanical action, on the final shade and physical characteristics of denim fabric is methodically investigated in this study. To guarantee comparability across experiments, a standardized denim fabric was used in a thorough experimental design. Shade differences were objectively measured using quantitative colorimetric analysis (Lab* values), in addition to evaluations of fabric strength, hand feel, and effluent properties. The results show that a wide range of different blue and grey denim shades, from deep indigo to light vintage looks, can be produced consistently by carefully adjusting the washing parameters, especially the sequential application and concentration of cellulase enzymes and oxidizing agents. Additionally, the study determines the best processing parameters that produce the intended aesthetic results while using less water and chemicals, improving the sustainability of denim finishing. In addition to providing a scientific basis for creating creative and reliable denim treatments and encouraging more environmentally friendly production methods, this study offers insightful information for industrial use.