Determination of two reactive dyes concentration in dyed cotton fabric

Hemijska Industrija

关键词: reflectance spectrophotometry;    reactive dyes;    cotton fabric;    dye concentration;   

DOI  :  10.2298/HEMIND110721091M

来源: DOAJ

【 摘 要 】

The purpose of this paper was to determine the unknown concentration ofdichlortriazinyl reactive dyes, namely Reactive Yellow 22 and Reactive Blue163, in dyed cotton fabric. The samples of cotton fabric were dyedindividually with each dye as well as with a mixture of two dyes. Theunknown concentrations of dyes were determined by measuring thecorresponding reflectance values of dyed fabric samples and then using therelation between the concentration and reflectance values of the samples.The method set by Kubelka and Munk was used. The accuracy and repeatabilityof the concentrations determination were calculated by the statisticalprocessing of the data obtained by measurements. Relative errors ofindividual determination of Reactive Yellow 22 and Reactive Blue 163 were3.66% and 5.94% respectively. Relative errors in determination of ReactiveYellow 22 and Reactive Blue 163 in a mixture were 3.47% and 3.19%respectively. The results showed that reflectance spectrophotometry can besuccessfully used as the method for concentration determination of ReactiveYellow 22 and Reactive Blue 163 in dyed cotton fabric and can therefore beapplied as the shade control method in dyeing.

【 授权许可】

Unknown