Study on the strength of reactive dyes: The influence of the functional group on colouring of the cotton fabrics

Ristić, Nebojša; Ristić, Ivanka; Mičić, Aleksandra; Zdravković, Miloš

doi:10.5937/tekstind2002004r

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…Ristić i saradnici obrađivali su pamučnu tkaninu komercijalnim katjonskim sredstvom Sintegal V7conc u koncentracijama 0,5, 1 i 2 g/dm 3 radi proučavanja promena na površini pamuka i sposobnosti bojenja reaktivnim bojama [19,20]. Morfologija površine pamučnog vlakna ispitana je skenirajućom elektron-skom mikroskopijom kako bi se procenio efekat katjonizacije na morfologiju površine.…”

Section: Slika 1: Vrednosti Zeta Potencijala Netretiranih I Modifikov...unclassified

“…Električno naelektrisanje pamuka značajno se menja katjonizovanjem (P0,5 do P2) bez obzira na koncentraciju primenjenog sredstva u obradi. Iz rezultata merenja zeta potencijala i specifične količine naelektrisanja na površini, očigledno je da su sve katjonizovane tkanine znatno pozitivnije naelektrisane i zato pokazuju bolju adsorpciju rektivnih boja [19,20].…”

Section: Slika 1: Vrednosti Zeta Potencijala Netretiranih I Modifikov...unclassified

“…Autori su propustljivost modifikovanog pamuka objasnili da primenjeno sredstvo (GTA) ima mali molekul, koji pri uslovima kombinovanog predtremana u jednom kupatilu na 90 o C prodire u unutrašnjost pamuka i dodatno doprinosi prodoru boja (slika 3) 18. U Tabeli 2 prikazane su vrednosti zadržane vode i apsorpcija jonskih površinkih aktivnih sredstava [19,20]. Na katjonski modifikovanim pamučnim tkaninama minimalno se smanjuje vrednost zadržane vode, jer do katjonizacije uglavnom dolazi na primarnim hidroksilnim grupama C6 atoma celuloze pamuka tako da je određen broj funkcionalnih grupa blokiran za molekule vode [21].…”

Section: Slika 1: Vrednosti Zeta Potencijala Netretiranih I Modifikov...unclassified

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Influence of cationic modification of cotton on dyeing with reactive dyes

Ristić¹,

Zdravković²,

Ristić³

et al. 2023

Tekstilna industrija

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Reactive dyes are the most popular dyes for dyeing cellulose fibers. The exhaustion method is the most common technical method of their application, when large amounts of neutral salts and alkali are added to the dyeing bath to fixing the dyes. Despite this, 10-40% of the dye is not fixed to the cotton and together with the salts, it represents a large environmental burden for watercourses. Recently, methods have been studied to increase the substantiality and reactivity of these dyes with the aim of promoting procedures that are more economical and environmentally safer. In this sense, cationic modification of cotton can be considered a promising procedure for increasing the utilization of reactive dyes from the technological solution. This review paper reports on the possibilities of applying different cationic agents for cotton processing and the effects of cationic modification on the ability to dye with reactive dyes.

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Section: Slika 1: Vrednosti Zeta Potencijala Netretiranih I Modifikov...unclassified

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Influence of cationic modification of cotton on dyeing with reactive dyes

Ristić¹,

Zdravković²,

Ristić³

et al. 2023

Tekstilna industrija

Self Cite

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The study on the power of monofunctional reactive dyes: The influence of the ionic strength solution on coloring of cotton fabric

Ristić¹,

Mičić²,

Ristić³

et al. 2021

Tekstilna industrija

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Reactive dyes are the most popular dyes for dyeing cellulose fibers. The low affinity of dyes on cotton determines the presence of large amounts of electrolytes and additional substances in the dyeing bath. In recent years, methods for increased use of dyes with minimal consumption of chemicals and natural resources have been popular. The number of ions formed by the dissociation of electrolytes determines the ionic strength of the solution and has a promotional effect on exhaustion and fixation of reactive dyes. In this work, the influence of neutral salts (NaCl and Na2SO4) and alkali salt (Na2CO3) on the color intensity of cotton fabric by reactive dyes has been investigated. A bath with a higher ionic strength of neutral salt has a greater exhaustion of reactive dyes. The addition of an alkaline electrolyte to activate the chemical dye/fiber reaction has an additional promotional effect on the exhaustion of reactive dyes.

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Study on the strength of reactive dyes: The influence of the functional group on colouring of the cotton fabrics

Cited by 2 publications

References 4 publications

Influence of cationic modification of cotton on dyeing with reactive dyes

Influence of cationic modification of cotton on dyeing with reactive dyes

The study on the power of monofunctional reactive dyes: The influence of the ionic strength solution on coloring of cotton fabric

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