Study on the Dyeing Properties of Curcumin on Natural and Synthetic Fibers and Antioxidant and Antibacterial Activities

Abstract

Cotton, wool, polyester, and polyamide fabrics have been dyed with the aqueous extract of curcumin, attempting to replace synthetic colorants with natural ones. All dyeing processes were carried out without mordants in aqueous baths in the presence of dispersing agent. It was found that curcumin has high coloristic power on both natural and synthetic substrates offering dark yellow shades. The wash fastness tolerance on all substrates was excellent classifying curcumin as a universal natural dye being able to effectively dye both natural and synthetic fibers, and thus possibly replacing the synthetic and sometimes toxic and allergenic synthetic dyes. It was also found that its antioxidant and antibacterial behavior is considerable, providing useful characteristics to the substrates applied.

Study of the dyeing properties of saffron and ultrafiltrated saffron powders, as colourants for natural and synthetic fibres

“…Similarly, two carotenoids (bixin and norbixin) give annatto its unique red colour 44 like crocin and crocetin give saffron its typical yellow colour. More, the dyeability and antibacterial activity of a third natural dye, of curcumin, on cotton, wool, polyamide and polyester have been recently studied by the authors 45 . The yellow powder of curcumin showed excellent antimicrobial activity, antioxidant activity and wash‐fastness properties.…”

“…No previous investigation has been performed to our knowledge regarding UF‐saffron dyeing, in any substrate. The relevant recent researches on annatto 35 and curcumin 45 dyeing are representative of the UF novelty and contribution applied on natural dyes, carried out for the time being.…”

“…More, the dyeability and antibacterial activity of a third natural dye, of curcumin, on cotton, wool, polyamide and polyester have been recently studied by the authors. 45 The yellow powder of curcumin showed excellent antimicrobial activity, antioxidant activity and wash-fastness properties. It is often discussed that natural dyes offer antimicrobial properties to the fabrics they are treated with, antiinflammatory properties too.…”

Creation of a Functional Cotton Headcover (turban/bonnet) via Lac and Turmeric Natural dyes

“…Curcumin is the chief component of turmeric dye which has antioxidant, anti-inflammatory, and anti-cancer (Rao et al, 2010). Curcumin is rich in sources of phenolic compounds which are reported to act as antioxidants and help protect human cells against oxidative damage (Lykidou et al, 2021). On the other hand, lac dye is composed of the anthraquinone compounds produced by the insect and contains phenolic hydroxyl and carboxy groups.…”

“…So, chitosan inhibits the normal metabolism of microorganisms and finally leads to the death of these cells (Dev et al, 2009b). But the antibacterial activity of turmeric dye is related to the presence of phenolic groups in curcumin compounds (Lykidou et al, 2021; Mari selvam et al, 2012). The -OH groups can interact with the cell membrane of bacteria and disrupt its structure, resulting in the leakage of the cellular components; this could help to delocalize electrons that act as proton exchangers and reduce the gradient across the cytoplasmic membrane of the bacterial cells, causing cell death (Shahmoradi Ghaheh et al, 2021).…”