This paper presents a study on determination of cost optimal operating conditions for decoloration and mineralization of C. I.Reactive Blue 268 by the UV/H2O2 process. The results obtained clearly indicate that, in order to assure effective and economically efficient operation, the UV/H2O2 process should be simultaneously optimized from the perspective of both operational and economic efficiency.
COBISS.SI-ID: 13047574
The effect of the mediator 1,8-dihydroxy-9,10-anthraquinone in enzymatic reduction was studied by means of voltammetry, both in the presence and absence of different textile materials (PA6, PA6.6, CEL) and compared to chemically reduced indigo. It was observed that bio-catalytic formation of leuco indigo and its exhaustion on substrates is inversely proportional to the pH within the range of 7–11, and that the substrate (especially PAs) coloration was strongly influenced by the mediator.
COBISS.SI-ID: 13199382
The purpose of our research was to prepare nanoencapsulated PET textile materials, which would be used as odor carriers (underwear and bed sheets with aromatherapy activities) or would act as malodorous absorbers (absorption of cigarette smell). We grafted beta-cyclodextrin onto PET textile materials by using a polyfunctional reagent 1,2,3,4-butanetetracarboxylic acid. We prepared nanoencapsulated polyester textile materials with increased adsorption capacity and with delayed release of volatile or active compounds.
COBISS.SI-ID: 13229078
Alginate, carboxymethylated guar gum and carboxymethylated cellulose, used as thickeners in printing pastes for monoreactive dyes, were recycled from wastewater concentrates (separated by ultrafiltration from wastewater after screen printing of cotton), and from printing paste residues (obtained from the cleaning of printing equipment and application systems in the printing machine). The printing performance, using original and recycled polymers, was studied via rheological properties of printing pastes and quality-determining parameters of printing.
COBISS.SI-ID: 13134358
The adsorption behavior of fucoidan as well as chitosan derivatives (chitosan sulfate) on poly(ethylene terephthalate) (PET) model film surface was studied using the quartz crystal microbalance technique. The surface chemistry and morphology of the chitosan/fucoidan or chitosan/chitosan sulfate coated PET-H films was analyzed using XPS and AFM. It was found that chitosan/fucoidan films were thinner and more compressed, while in the case of chitosan/chitosan sulfate, large amounts of chitosan sulfate were adsorbed, indicating a loose and thick adsorbed film.
COBISS.SI-ID: 13016086