EFFECT OF FUNGI ON DISCOLOURATION OF DYED FABRICS
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Date
1999-09-09
Authors
GOUDAR, IRAMMA V.
Journal Title
Journal ISSN
Volume Title
Publisher
UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE
Abstract
The study comprised of experimental procedure, conducted during 1997-98 in
Dharwad. Pure (100%) silk, cotton and polyester white materials were dyeAwith
acid, reactive and disperse dyes, respectively were selected for the study. Each
fabric sample was dyed with three hues viz., blue, red and yellow, all being primary.
The test samples were inoculated with four fungal culttures viz., AspergiUus niger,
Trichoderma harzianum, Phanerocbaete chrysosporium and Pleurotus sapidus of two
concentrations each i.e. 3 days and 6 days old. These inoculated samples were
incubated for 6 days at 30°C and assessed for the level of discolouration and change
In physical parameters viz., cloth weight, cloth tensile strength and cloth tear strength.
The results revealed that greater level of discolouration was caused by AspergiUus
niger compared to other cultures. Of the three primary colours blue discolourised to
a greater extent followed by yellow and red in all the three fabrics. Among all the
dyed samples, blue coloured cotton showed greater reduction in colour. Of the four
selected cultures AspergiUus niger damaged the samples maximum and Pieurotus
sapidus minimum. The 6 days old concentration affected the colour as well as the
physical parameters compared to 3 days old. Cloth weight, cloth tensile strength
and cloth tear strength of cotton sample were adversely affected compared to silk
and polyester on inoculation of fungal cultures.
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