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Influence of the fluorescent brightener Periblanc BA on the degree of whiteness of the knitted cotton fabric

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Author(s): Miljković Milena N. | Purenović Milovan M. | Novaković Mile K. | Ranđelović Sonja S.

Journal: Hemijska Industrija
ISSN 0367-598X

Volume: 65;
Issue: 1;
Start page: 61;
Date: 2011;
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Keywords: fluorescent brightener | Periblanc BA | whiteness | knitted cotton fabric | bleaching | standard illuminant D65

ABSTRACT
In this study the influence of the different fluorescent brightener Periblanc BA concentrations on the degree of knitted cotton fabric whiteness was investigated. Two consecutive experimental runs were performed. The first was the bleaching of the knitted cotton fabric with hydrogen peroxide using the methods of two and single bath exhaustion while the second was the optical bleaching with fluorescent brightener Periblanc BA using the exhaustion method. CIE Whiteness Index and Tint value were measured on the Color-Eye 3000 spectrophotometer at the standard illuminant D65 (Ice-Texicon, d/8, D65/10°) while K/S values were determined using the Kubelka Munk equation. The results show that cotton fabric bleached with fluorescent brightener Periblanc BA after bleaching with hydrogen peroxide using two bath exhaustion method has higher degree of whiteness (118.8) with a reddish tint in comparison to the one bleached with hydrogen peroxide using single bath method (106.1).
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