India’s richest biodiversity has contributed its fame as a treasure-house of plant-based natural products. We are endowed with more than 500 plant species that function as the source of natural colours. Dyes are related to cultural practices and various aspects of human life, but the attention given to natural dye-yielding plants is very less. Natural dyes are more eco-friendly and sustainable sources than their synthetic counterparts.
In the present investigation, dyes were extracted from the
roots of Rubia cordifolia and applied on cotton fabrics using diverse mordants
viz., aluminium potassium sulphate (Alum), ferrous sulphate (FeSO4), copper
sulphate (CuSO4), glacial acetic acid and myrobalan by using pre, post and
simultaneous mordanting methods. Fabrics
dyed without mordanting served as control.
A dye bath was prepared by boiling the powdered root in water at
100°C. Dyed cotton fabrics produced a
wide range of colours/shades. OD of dye
baths before and after dyeing varied significantly among different mordants
used. Percentage dye uptake due to
various mordants was significantly (P< 0.001) varied on mordanting methods.
The highest dye uptake (72.09%) was recorded in myrobalan based post-mordanting
method. Wash fastness and rubbing
fastness were in the range of 1/2nd–4/5th acceptable grades. Thus suggest the use of madder roots along
with mordants to get flamboyant shades on cotton fabric.
Author(s) Details:
Devi Priya M.,
Department of Botany, St. Thomas College, Ranni, Pazhavangadi PO, Pathanamthitta 689673, India.
E. A. Siril,
Department of Botany, University of Kerala, Kariavattom, Trivandrum 695 581, India.
Please see the link here: https://stm.bookpi.org/IBS-V1/article/view/14062
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