Abstract
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.
Highlights
In recent decades, synthetic coloration of textiles is the alarming issue around the world because of ecological imbalance as well as a future threat for human being
Fabric used in this experiment includes commercially scoured-bleached 100% cotton knitted single jersey structure having areal density of 160 grams per square meter having geometrical properties: course per inch (CPI) = 52, Wales per inch (WPI) = 35, stitch length = 2.70 mm and yarn count 28 Ne
The extracted dye from mango seed kernel agronomical bio-waste was successfully employed for dyeing of cellulosic fiber
Summary
Synthetic coloration of textiles is the alarming issue around the world because of ecological imbalance as well as a future threat for human being. In special cases it may leads cancer [06] To release from this problem, eco-friendly natural dyeing technologies are thriving worldwide as alternative of synthetic colorant. The natural dyes have variety of shades and tones They are safe for human body and environment, abundant in availability, cheap, and have no disposal problems [07]. Mango possess different functional properties namely anti-oxidant, anti-viral, anti-diabetic, anti HIV, anti-bacterial, anti-fungal, anti-allergic, anti-microbial, pyro-lytic liquid [10, 11]. These vast deployments of mango yields huge amount of agronomical waste which have no remarkable effective exploitation. For the first time here mango seed kernel extracted dye was used for cotton coloration. Dying temperature and time was optimized in terms of several colorimetric properties and dye-fiber binding permanency and agronomical bio-waste of mango was effectively exploited as well
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