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Ultrasonication-aided dye extraction from waste onion peel and eco-friendly dyeing on organic cotton fabric with enhanced efficacy in color fixation

Mohammad Abul Hasan Shibly, Abdullah Al Tahsin, and Md. Adib Hossain Chisty

Department of Textile Engineering, National Institute of Textile Engineering and Research, University of Dhaka, Dhaka, Bangladesh

 

E-mail: hasan.niter@gmail.com

Received: 20 July 2022  Accepted: 10 March 2023

Abstract:

This study focused on effective natural colorants extraction from onion (Allium cepa L.) peel and applying the extracted dye on 100% organic cotton fabric assisted by ultrasonication (US) technique. Three techniques, pre-mordanting, simultaneous mordanting, and post-mordanting, were employed, using lemon juice as a mordant to assist the dye material for steady penetration and fixation into the pre-treated organic cotton fabric. The ISO standards were maintained in color fastness tests to compare the stability of dyed samples. Fastness properties showed moderate to good color change and staining for the post-mordanted sample. Fourier Transform Infrared Spectroscopy evidenced potential binding sites having stretched N–H and C–O vibration of alcohols, esters, ethers, carboxylic acids, anhydrides, and medium C–N stretching at 3330 cm−1 and 1028 cm−1, respectively. Within the visible range of 400–700 nm, the spectrophotometer test was carried out to obtain CIELAB and CIELCH color coordinates (CIE L*, a*, b*, C*, h*), color strength (K/S) values to ensure dye fixation together with after-dyeing behavior. The pre-mordanted sample showed comparatively better color strength (K/S) which was 2.6, and the post-mordanted sample showed better color fastness properties.

Keywords: Onion peel; Ultrasonication; Dye extraction; Cotton fabrics; Color fastness

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-023-02783-7

 

Chemical Papers 77 (8) 4345–4353 (2023)

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