Title
Simultaneous dyeing and finishing of cotton fabrics using Red Ocher earth pigment
Authors
HARSHAL HOLKAR, SHASHWAT NARAYAN, JAVED SHEIKH and NAGENDER SINGH

Received September 8, 2024
Published Volume 59 Issue 3-4 March-April
Keywords Red Ocher, cotton, dyeing and finishing, UV protection, thermal properties

Abstract
A novel approach to the pad-dry cure method was employed to prepare concurrently dyed and finished cotton samples. The innovative approach integrates a layer-by-layer pigment dyeing procedure for obtaining varying shades of Red Ocher (RO) and functionalities on dyed cotton. Following the dyeing process, advanced characterization techniques, such as Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA), were employed to confirm the presence of RO and its effect on the fabric. The findings of this unique study indicated exceptional UV protection factors, laundering, and light fastness of dyed cotton. Additionally, an observable trend emerged, indicating an increase in thermal resistance with an augmented number of padded layers, while conversely, a decrease in thermal conductivity was observed. These insightful and novel findings offer exciting opportunities for broader thermal insulation cotton textile applications distinguished by outstanding UV protection and color retention.