Organic dyes and their identification

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F09%3A10000608" target="_blank" >RIV/00216208:11310/09:10000608 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Organic dyes and their identification

Popis výsledku v původním jazyce

This work deals with red organic dyes identification using molecular spectroscopic method. The infrared spectroscopy in reflectance mode (wavenumber between 650 ? 4000 cm-1) has been optimized for identification of nine selected red dyes (i.e., akaroid,brazil, dragon blood, kamala, logwood, cochinea, kraplak, lac and santal). The spectra of individual dyes and their main dyeing components were measured. The significant absorption bands of individual dyes were found and used for identification and differentiation of studied dyes. Further the model samples of dyed textile fibres were prepared. The wool and viscose fibres were mordanted by three types of mordants (namely potassium aluminium sulphate, ferrous sulphate and cupric sulphate) and dyed with seven dyes. The spectra of dyed textile fibres were measured both before and after an accelerated ageing by emission in visible and near infrared area. The ageing had no influence on the dyes, but the fibres were degradated.

Název v anglickém jazyce

Organic dyes and their identification

Popis výsledku anglicky

This work deals with red organic dyes identification using molecular spectroscopic method. The infrared spectroscopy in reflectance mode (wavenumber between 650 ? 4000 cm-1) has been optimized for identification of nine selected red dyes (i.e., akaroid,brazil, dragon blood, kamala, logwood, cochinea, kraplak, lac and santal). The spectra of individual dyes and their main dyeing components were measured. The significant absorption bands of individual dyes were found and used for identification and differentiation of studied dyes. Further the model samples of dyed textile fibres were prepared. The wool and viscose fibres were mordanted by three types of mordants (namely potassium aluminium sulphate, ferrous sulphate and cupric sulphate) and dyed with seven dyes. The spectra of dyed textile fibres were measured both before and after an accelerated ageing by emission in visible and near infrared area. The ageing had no influence on the dyes, but the fibres were degradated.

Druh

D - Stať ve sborníku

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

5th Proceedings of the International Students Conference "Modern Analytical Chemistry"

ISBN

978-80-86561-41-7

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

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Název nakladatele

Charles University in Prague ? Faculty of Science

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

21. 9. 2009

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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