EFFECT OF SOAKING AND CLEANSING AGENTS ON THE PIGMENTATION OF DHARWAD DESI COLOURED COTTON-1 (Gossypium arboreum L.) FABRIC
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Date
1999-09-09
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE
Abstract
The study was conducted during the year 1997-98 in Dharwad
city of Karnataka State with the objectives to study the effect of soaking,
acidic and alkaline cleansing agents on the pigment of DDCC-1 fabric.
Further the effect of commercial scouring and mercerisation was also
studied. The change in the colour of DDCC-1 fabric was assessed with the
aid of computer colour matching system under four illuminations viz.,
daylight, tungsten, tubelight-83 and tubelight-84. The study was also
aimed to know the commonly used cleansing agents by the households for
domestic laundering, since this information was essential to select the
cleansing agents for the present experiment. Survey results of 150 female
households revealed that detergent consumption is higher than the soaps
and majority of them purchased the cleansing agents monthly. The pigment
of DDCC—1 fabric improved on soaking in water irrespective of hardness.
Stability in the improvement of colour was attained at 13'^ soaking.
Significant enhancement in the pigment was observed on subsequent
washes. Though the fabric was subjected for twenty washes, maximum
increase in the colour was observed after 10'"' wash. Greater improvement in
the pigment was observed when washed with detergents viz., Ariel, Surf
and wheel compared to soaps (Nirma, 501 soap and OK soap cake) natural
cleansing agents (Shikakai and Reetanut) and liquid detergents {Ezee and
Genteel). Though all the selected cleansing agents enhanced the original
colour, higher alkalinity, acidity and neutral pH did not show a remarkable
improvement in the original colour. Commercial scouring and mercerisation
also enhanced the original colour of DDCC-1 fabric remarkably.
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