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Natural Dyes in Combination: Dual Dyeing for Newer Shades by Varying Pre-treatments, Mordants and Type of Natural Dyes

Natural Dyes in Combination: Dual Dyeing for Newer Shades by Varying Pre-treatments, Mordants and... In this study, three different dyes, i.e., Punica granatum, Terminalia arjuna and Acacia catechu were used in combination with natural indigo dye. Pure cotton and pure silk mordanted swatches were first dyed by above three dyes and then re-dyed by indigo through vat method which gave beautiful shades of bluish green and shining dark green. It has also been observed that pre-mordanting with five different inorganic salts produced different shades after indigo dyeing. CIE La*b* and K/S values shown excellent reflectance on fabric. The light and washing fastness of the dyed samples were also evaluated, giving fair to excellent fastness grades especially the wash fastness after indigo dyeing gave very good results. It has been observed that combination of Punica, Acacia and Terminalia with Indigo has produced a diverse array of shades different from their intrinsic shades on both the fabric. Dyed fabric has shown substantial increase in color depth (K/S) and wash, light and rubbing fastness after indigo dyeing. The collection of shades and fastness grades may be useful for textile dyeing industry for cotton and silk fabrics. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of The Institution of Engineers (India) Series E Springer Journals

Natural Dyes in Combination: Dual Dyeing for Newer Shades by Varying Pre-treatments, Mordants and Type of Natural Dyes

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References (21)

Publisher
Springer Journals
Copyright
Copyright © The Institution of Engineers (India) 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
2250-2483
eISSN
2250-2491
DOI
10.1007/s40034-022-00251-7
Publisher site
See Article on Publisher Site

Abstract

In this study, three different dyes, i.e., Punica granatum, Terminalia arjuna and Acacia catechu were used in combination with natural indigo dye. Pure cotton and pure silk mordanted swatches were first dyed by above three dyes and then re-dyed by indigo through vat method which gave beautiful shades of bluish green and shining dark green. It has also been observed that pre-mordanting with five different inorganic salts produced different shades after indigo dyeing. CIE La*b* and K/S values shown excellent reflectance on fabric. The light and washing fastness of the dyed samples were also evaluated, giving fair to excellent fastness grades especially the wash fastness after indigo dyeing gave very good results. It has been observed that combination of Punica, Acacia and Terminalia with Indigo has produced a diverse array of shades different from their intrinsic shades on both the fabric. Dyed fabric has shown substantial increase in color depth (K/S) and wash, light and rubbing fastness after indigo dyeing. The collection of shades and fastness grades may be useful for textile dyeing industry for cotton and silk fabrics.

Journal

Journal of The Institution of Engineers (India) Series E – Springer Journals

Published: Jun 1, 2023

Keywords: Natural dyes; Re-dyeing; Punica; Terminalia; Acacia; Indigo

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