TY - JOUR
T1 - Effect of Atmospheric Plasma Treatment on Pad-dyeing of Natural Dyes on Wool
AU - Saminathan Ratnapandian , Lijing Wang, Stanley MacArthur Fergusson & Maryam Naebe
JO - Journal of Fiber Bioengineering and Informatics
VL - 3
SP - 267
EP - 276
PY - 2011
DA - 2011/04
SN - 4
DO - http://doi.org/10.3993/jfbi09201106
UR - https://global-sci.org/intro/article_detail/jfbi/4922.html
KW - Acacia Natural Dye
KW - Atmospheric Plasma Treatment
KW - Padding
KW - Mordant
KW - Wool Fabric
AB - Plasma treatment is an emerging surface modification technique that alters dye uptake of wool without
using chemicals or water for pre-treatment. Padding is an established continuous dyeing technique known
for its efficient use of water, time and energy. This study combined these two techniques for colouration
of wool fabric using two natural dyes derived from the Acacia plant family. The investigation focused on
the effects of plasma treatment and obtaining unique patterning effects. Helium (100%) and a mixture
of helium and nitrogen (95%/5%) were used as the plasma gases under atmospheric conditions. Plasma
treated wool fabric was padded with the above natural dyes. Copper sulphate and ferrous sulphate were
applied on the dyed fabric as mordant yielding neutral shades of beige and grey respectively. Up to
a 30% enhancement of dye adsorption on plasma treated wool substrate was observed as compared to
untreated sample for both gases used. This higher adsorption indicates the hydrophilic character of the
natural dyes used. Key performance parameters such as fastness to washing, rubbing and light were
tested and found to be satisfactory. A single process tone-on-tone pattern was achieved by controlling
the plasma exposure of treated area. This study concluded that a merger of natural dyes with modern
plasma treatment and padding techniques for wool colouration was feasible.