Photochemical Stability of a Cotton Fabric Surface Dyed with a Reactive Triphenodioxazine Dye

The paper describes the photochemical stability of a commercial triphenodioxazine dye (Reactive Blue_204) linked onto a cotton fabric. Preliminary studies have shown that as a result of irradiation, the dye and its photodegradation products can pass directly onto the skin under conditions that mimic...

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Autores principales:	Liliana Rosu, Cristian-Catalin Gavat, Dan Rosu, Cristian-Dragos Varganici, Fanica Mustata
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	triphenodioxazines dyes cotton fabrics photochemical stability color modifications Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/06d98e4f674643608f24b31c75a4920b
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spelling	oai:doaj.org-article:06d98e4f674643608f24b31c75a4920b2021-11-25T18:49:08ZPhotochemical Stability of a Cotton Fabric Surface Dyed with a Reactive Triphenodioxazine Dye10.3390/polym132239862073-4360https://doaj.org/article/06d98e4f674643608f24b31c75a4920b2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/22/3986https://doaj.org/toc/2073-4360The paper describes the photochemical stability of a commercial triphenodioxazine dye (Reactive Blue_204) linked onto a cotton fabric. Preliminary studies have shown that as a result of irradiation, the dye and its photodegradation products can pass directly onto the skin under conditions that mimic human perspiration and cause side-effects. The cotton dyed fabric was photo irradiated at different time intervals. Standard methods were employed to evaluate the color strength at various levels of pH, temperature, dyeing contact time, and salt concentration. The influence of UV radiation at different doses (λ > 300 nm) on the structural and color modifications of the dyed cotton fabrics was studied. Structural modifications before and after irradiation were compared by applying FTIR, UV–Vis, and near infrared chemical imaging (NIR–CI) techniques. Color modifications were investigated with the CIELAB system. Color differences significantly increased with the irradiation dose. High irradiation doses caused changes in the dye structure.Liliana RosuCristian-Catalin GavatDan RosuCristian-Dragos VarganiciFanica MustataMDPI AGarticletriphenodioxazines dyescotton fabricsphotochemical stabilitycolor modificationsOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3986, p 3986 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	triphenodioxazines dyes cotton fabrics photochemical stability color modifications Organic chemistry QD241-441
spellingShingle	triphenodioxazines dyes cotton fabrics photochemical stability color modifications Organic chemistry QD241-441 Liliana Rosu Cristian-Catalin Gavat Dan Rosu Cristian-Dragos Varganici Fanica Mustata Photochemical Stability of a Cotton Fabric Surface Dyed with a Reactive Triphenodioxazine Dye
description	The paper describes the photochemical stability of a commercial triphenodioxazine dye (Reactive Blue_204) linked onto a cotton fabric. Preliminary studies have shown that as a result of irradiation, the dye and its photodegradation products can pass directly onto the skin under conditions that mimic human perspiration and cause side-effects. The cotton dyed fabric was photo irradiated at different time intervals. Standard methods were employed to evaluate the color strength at various levels of pH, temperature, dyeing contact time, and salt concentration. The influence of UV radiation at different doses (λ > 300 nm) on the structural and color modifications of the dyed cotton fabrics was studied. Structural modifications before and after irradiation were compared by applying FTIR, UV–Vis, and near infrared chemical imaging (NIR–CI) techniques. Color modifications were investigated with the CIELAB system. Color differences significantly increased with the irradiation dose. High irradiation doses caused changes in the dye structure.
format	article
author	Liliana Rosu Cristian-Catalin Gavat Dan Rosu Cristian-Dragos Varganici Fanica Mustata
author_facet	Liliana Rosu Cristian-Catalin Gavat Dan Rosu Cristian-Dragos Varganici Fanica Mustata
author_sort	Liliana Rosu
title	Photochemical Stability of a Cotton Fabric Surface Dyed with a Reactive Triphenodioxazine Dye
title_short	Photochemical Stability of a Cotton Fabric Surface Dyed with a Reactive Triphenodioxazine Dye
title_full	Photochemical Stability of a Cotton Fabric Surface Dyed with a Reactive Triphenodioxazine Dye
title_fullStr	Photochemical Stability of a Cotton Fabric Surface Dyed with a Reactive Triphenodioxazine Dye
title_full_unstemmed	Photochemical Stability of a Cotton Fabric Surface Dyed with a Reactive Triphenodioxazine Dye
title_sort	photochemical stability of a cotton fabric surface dyed with a reactive triphenodioxazine dye
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/06d98e4f674643608f24b31c75a4920b
work_keys_str_mv	AT lilianarosu photochemicalstabilityofacottonfabricsurfacedyedwithareactivetriphenodioxazinedye AT cristiancatalingavat photochemicalstabilityofacottonfabricsurfacedyedwithareactivetriphenodioxazinedye AT danrosu photochemicalstabilityofacottonfabricsurfacedyedwithareactivetriphenodioxazinedye AT cristiandragosvarganici photochemicalstabilityofacottonfabricsurfacedyedwithareactivetriphenodioxazinedye AT fanicamustata photochemicalstabilityofacottonfabricsurfacedyedwithareactivetriphenodioxazinedye
_version_	1718410629879955456

Photochemical Stability of a Cotton Fabric Surface Dyed with a Reactive Triphenodioxazine Dye

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