Original scientific paper

Cotton screen-printing with flavonoid natural dyes – Part I. Extraction and application

Ana Sutlović orcid.org/0000-0002-4629-8434 ; University of Zagreb Faculty of Textile Technology, Zagreb, Croatia
Iva Brlek ; University of Zagreb Faculty of Textile Technology, Zagreb, Croatia *
Dorotea Anić ; University of Zagreb Faculty of Textile Technology, Zagreb, Croatia
Martinia Ira Glogar ; University of Zagreb Faculty of Textile Technology, Zagreb, Croatia
Veronika Lovreškov ; University of Zagreb Faculty of Textile Technology, Zagreb, Croatia

* Corresponding author.

Abstract

In view of the development of awareness of environmental protection and circular economy and the increasing interest in natural dyes, the aim of this work was to investigate the process parameters for screen printing of cotton with natural dyes extracted from onion skin and pomegranate peel. The viscosity of Prisulon DCA 90, a universal thickener for textile printing, was tested under acid, neutral and alkaline conditions. Printing was carried out with acid, neutral and alkaline printing pastes with and without metal salts. The results were evaluated spectrophotometrically. It was found that screen-printing with natural dyes of plant origin can be used for cotton fabrics, achieving a wide range of colour hues under different pH conditions, and the addition of metal salts what significantly improves the colour fastness too.

Keywords

natural dyes; flavonoids; screen-printing; thickener; viscosity; metal salts

Hrčak ID:

334438

URI

https://hrcak.srce.hr/334438

Publication date:

17.12.2023.

Article data in other languages: croatian

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