..., leather as well as fibers like wool, silk and cotton (Verma and Gupta, 2017), but use of natural dyes for textile dyeing purposes decreased to a large extent after the discovery of synthetic dyes in 1856 (Ado et al., 2014). Today, the global community is appreciating green technologies...

...Hooman Imani; Kamaladin Gharanjig; Zahra Ahmadi Purpose The purpose of this study is simultaneous dyeing and mordanting of wool yarns with extracted cochineal dye and aluminum sulfate to the reduction of consuming energy, water and time. Design/methodology/approach The dyeing process...

...Ali Shams Nateri; Ehsan Dehnavi Purpose This work aims to study the effect of mordanting method as pre-mordanting (on-chrome), meta-mordanting (meta-chrome) and post-mordanting (after-chrome) on wool dyeing with madder natural dye without tannin and pomegranates peel, as a natural dye contains...

...Aminoddin Haji; Pedram Payvandy Purpose Despite the increasing popularity of natural dyeing of textiles, the low substantivity between the fibers and the natural dyes is a problem. Several methods have been used to overcome this problem. In this study, wool fibers were pretreated with oxygen...

...E. Dehnavi; A. Shams-Nateri; H. Khalili Purpose – This paper aims to focus on the absorption behaviour of single and binary mixtures of natural dyes on wool. Natural dyes are multi-components with different structures and properties. Design/methodology/approach – In this research...

...Padma S. Vankar; Rakhi Shanker; Samudrika Wijayapala Purpose The purpose of this paper is to evaluate the efficiency of dyeing on cotton wool and silk fabrics with natural dye obtained from kitchen waste of dry skin extract of Allium cepa. Design/methodology/approach The dry skin...

... applications as disperse dyes in the fields of dyeing, printing and surface coating. Moreover, the systems can find applications as reactive dyes for wool, silk and cellulosic fibres. A solution of 2‐cyano‐N′‐(arylsulphonyl)acetohydrazide 1 (0.01 mol) and mercapto acetic acid 2 (0.01 mol) were...

...M.H. Helal; G.H. Elgemeie; M.A. El‐kashouti; M.M. ElMolla; H.S. Elsayad; K.A. Ahmed Purpose The purpose of this paper is to synthesise some disperse dyes containing a reactive group and study their applications on polyamide and wool printing by heat transfer and screen printing. Design...