Abstract:
Reactive dyes are very popular for cellulosic fiber because they are environmentally
safe and having well overall fastness properties. The application of those dyes
necessary in a very high intentness of salt. The salt released from fiber dyeing rising
salinity in flow-out water stream which has a negatory influence on environmental
ecology. Here we have done reactive dye 1% shade blue color in 100% cotton, 100%
viscose & 50/50 cotton/viscose blend fabric in exhaust dyeing method. After getting
our desired shade & color we checked 3 sample color strength value by
spectrophotometer. After the checking of color strength value, we calculated this
value in kubelka monk theory & got color strength is better for 100% viscose than
100% cotton & 50/50 cotton viscose fabric. Then we have done color fastness test
3 of sample. Color fastness to rubbing, color fastness to wash, color fastness to water
& colr fastnes to perspiration. Here we got, color fastness to rubbing of 100% cotton
is better than 100% viscose & 50/50 cotton/viscose fabric. Color fastness to water
is better for 100% viscose than 100% cotton & 50/50 cotton/viscose. Color fastness
to washing is better for 100% cotton & color fastness to perspiration (acid medium)
result is better for 100% viscose & color fastness to perspiration (alkali medium)
result 100% cotton is better.
