English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/16034
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Chitosan/acid dye interactions in wool dyeing system

AuthorsJocic, Dragan; Vílchez, Susana; Topalovic, Tatjana; Navarro, Antonio; Jovancic, Petar; Julià, María Rosa; Erra Serrabasa, Pilar
KeywordsAcid dye
Chitosan
Interaction
Spectrophotometry
Dyeing
Issue Date7-Apr-2005
PublisherElsevier
CitationCarbohydrate Polymers 60(1): 51-59 (2005)
AbstractThis study assesses the interactions that could occur during dyeing of the chitosan treated wool fibres on basis of the spectrophotometric study, by measuring the absorbance values of the solutions containing dye and chitosan. It has been shown that there is a 1:1 stoichiometry between protonated amino groups and sulfonate acid groups on the dye ions in low concentrated chitosan solutions. This interaction forms an insoluble chitosan/dye product. With the excess of chitosan in the solution, the dye can be distributed between the different chitosan molecules and the soluble chitosan/dye products remain in the solution. The mechanism of the interaction is suggested, that involves the possibility of adsorbed dye molecules to be desorbed and redistributed between other components present in the system, depending on system parameters (pH, temperature and electrolyte presence). This fact is important in explanation of dyeing behaviour of chitosan treated wool and enables the assessment of the mechanism of dyeing of accordingly modified textile fibres.
Description9 pages, 4 figures, 3 tables.-- Available online Dec 18, 2004.
Publisher version (URL)http://dx.doi.org/10.1016/j.carbpol.2004.11.021
URIhttp://hdl.handle.net/10261/16034
DOI10.1016/j.carbpol.2004.11.021
ISSN0144-8617
Appears in Collections:(IQAC) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.