20.500.12556/DKUM-53001 Presence of dioxins in textile dyes and their fate during the dyeing process Considerable levels of highly toxic polychlorinated dibenzo-p-dioxins (PCCDs) and polychlorinated dibenzofurans (PCDFs) were determined in two among the sixanalysed disperse textile dyes. The dioxin homologue profile of these dyes was similar to that found in some environmental and industrial samples, connected with the textile industry. Dyes contaminated with dioxins were further used in industrial polyester dyeing processes at laboratory scale. We observed the changes in dioxin contents, dioxin transformations and their distribution during the textile dyeing process. After the dyeing and textile finishing processes the content of dioxins was up to fifteen times higher. More than 85% of the total dioxin content was found in dyed polyester. Other 15% was discharged with waste dye bath. Our results confirmed that the presence of dioxins in some textile dyes may be a significant source regardinghuman exposure and environmental contamination. Dioksine predstavljata skupini toksičnih obstojnih spojin polikloriranih dibenzo-p-dioksinov in polikloriranih dibenzofuranov. V okviru naših raziskav smo preverili prisotnost dioksinov v tekstilnih barvilih. Analizirali smo šest vzorcev tekstilnih barvil. V dveh vzorcih tekstilnih disperznih barvil smo določili znatne vsebnosti dioksinov. Porazdelitev dioksinov v teh vzorcih barvil je podobna porazdelitvi dioksinov določeni v nekaterih vzorcih povezanih s tekstilno industrijo. Barvila, ki vsebujejo dioksine smo uporabili v poizkusih barvanja in spremljali spremembe v porazdelitvi in koncentraciji dioksinov skozi postopek barvanja. Masna bilanca dioksinov v postopku barvanja pokaže povečanje vsebnosti dioksinov, medtem ko ostaja njihova porazdelitev nespremenjena. Pri barvanju pri visokih temperaturah in v alkalnem mediju nastajajo dioksini iz prekurzorskih (predhodnih) spojin. Več kot 85% celotne vsebnosti dioksinov smo določili v vzorcih obarvanega poliestra. Preostalih 15% smo določili v odpadni barvalni kopeli. Rezultati raziskav dokazujejo, da prisotnost dioksinov v nekaterih tekstilnih barvilih predstavlja znaten doprinos k vsebnosti teh spojin v širšem okolju. textile dyeing textile dyes dioxins furans formation polychlorinated dibenzofurans polychlorinated dibenzo-p-dioxins barvanje tekstilij tekstilna barvila dioksini furani nastanek dioksinov true false true Angleški jezik Slovenski jezik Znanstveno delo 2015-07-10 18:55:05 2015-07-10 18:55:05 2022-06-02 03:08:33 2021-05-10 03:32:07 2005 0 0 str. 111-118 št. 2 Letn. 52 2005 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1318-0207 543.6:547.84:667 14086149 9647382 1318-0207 URN:SI:UM:DK:8PNGXSQ7 Acta_Chimica_Slovenica_2005_Krizanec_et_al._Presence_of_dioxins_in_textile_dyes_and_their_fate_during_the_dyeing_processes.pdf Acta_Chimica_Slovenica_2005_Krizanec_et_al._Presence_of_dioxins_in_textile_dyes_and_their_fate_during_the_dyeing_processes.pdf 1 2C062A67D0DFB37DE5C68F03ED5015EF 2cf76b8616f0de531469c56197b7365e7c8a93f6b5777cf46e0f49fac5f9fbe2 8dfefd1f-7c0e-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=115912 http://acta-arhiv.chem-soc.si/52/52-2-111.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=77561 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0