Recent advances in the surface modification strategies to improve functional finishing of cotton with natural colourants - A review

Textile coloration using synthetic dyes is not eco-friendly and has detrimental impact on wearer skin. Hence, natural dye is assumed as a suitable alternative for sustainable textile manufacturing and coloration. In this study, we utilized Turmeric (Curcuma longa L.) extract for cotton fabric dyeing. Additionally, biomordants (derived from Citrus lemon and Colocasia esculenta bulk) and metallic mordants (Potassium dichromate and Potash alum) pre-treatments were carried out to upturn the overall uptake of dyes into the fabric interior. The resulted color-strength (K/S) of biomordant pretreated sample was two times higher (K/S=8.6) than the metal mordanted sample (K/S=4.0). To investigate the fastness properties of dyed fabric varities, colorfastness to rub (dry and wet), wash, water, and perspiration test were performed and found superior result for bio-crosslinkers compared to metallic salts chelation. Futhermore, the visual uniformity and moisture absorption on the hue (h*) by the final dyed samples were also found excellent in both mordanted dyed fabrics. Thereby, this dyeing process propossed the viability of natural dyestuff with synthetic auxiliaries for facile cotton fabric coloration. Therefore, the utilization of Turmeric extract as a usefull dye source and Citrus lemon, Colocasia esculenta bulk extract as biomordant could reckon a positive insight for cleaner textile manufacturing and dyeing.

Effect of turmeric dye and biomordants on knitted cotton fabric coloration: A promising alternative to metallic mordanting

UV-blocking cotton fabric design for comfortable summer wears: factors, durability and nanomaterials

Comparative dyeing behavior and UV protective characteristics of cotton fabric treated with polyphenols enriched banana and watermelon biowaste

Functional modification of cellulose by chitosan and gamma radiation for higher grafting of UV protective natural chromophores

This study reported a sustainable and facile coloration approach of cotton fabric by exploiting mangiferin enriched mango seed kernel bio-waste. The extract principally contains mangiferin and diff...

Cotton dyeing performance enhancing mechanism of mangiferin enriched bio-waste by transition metals chelation

Typical synthetic colorant and their application processes include various negative eco-toxicological effect and human health risk. Intend to depose the impediments of synthetic dyeing herein mango seed kernel agronomical bio-waste was employed for sustainable dyeing of cotton fabric. 100% cotton knitted single jersey commercially scoured-bleached fabric having areal density of 160 grams per square meter was used for this study. Natural dye was extracted by alkali extraction method from raw seed kernel of Mangifera indica. Optimum dyeing temperature and duration were quantified. Colorimetric appearance of the dyed samples for different dyeing condition were evaluate by using CIE L*a*b* color space in terms of color co-ordinates, color strength (K/S), brightness index (BI) and degree of color levelness values. Dye fiber bonding stability of the dyed fabric was evaluated in terms of colorfastness to wash, water, perspiration, rubbing and light. Overall the colorfastness values were recorded as 4-5 except light fastness. Excellent colorimetric appearance and serviceability indicates future green coloration of cotton fabric through mango seed kernel as well as decent agronomical bio-waste management.

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Manindra Nath Roy

Papers

Cotton dyeing performance enhancing mechanism of mangiferin enriched bio-waste by transition metals chelation

Mango Seed Kernel Agronomical Bio-Waste for Ecofriendly Cotton Dyeing: Optimization of Dyeing Period and Temperature