title: Green dyeing process of modified cotton fibres using natural dyes extracted from Tamarix aphylla (L.) Karst. leaves.
abstract: This research work involves an eco-friendly dyeing process of modified cotton with the aqueous extract of Tamarix aphylla leaves. During this process, the dyeing step was carried out on modified cotton by several cationising agents in order to improve its dyeability. The influence of the main dyeing conditions (dye bath pH, dyeing time, dyeing temperature, salt addition) on the performances of this dyeing process were studied. The dyeing performances of this process were appreciated by measuring the colour yield (K/S) and the fastness properties of the dyed samples. The effect of mordant type with different mordanting methods on dyeing quality was also studied. The results showed that mordanting gave deeper shades and enhanced fastness properties. In addition, environmental indicators (BOD5, COD and COD/BOD5) were used to describe potential improvements in the biodegradability of the dyebath wastewater. Further, HPLC was used to identify the major phenolic compounds in the extracted dye.
authors.affiliation: a Faculty of Sciences of Monastir , Research Unit of Applied Chemistry and Environment (UR13ES63) , Monastir , Tunisia.
authors.forename: Noureddine
authors.initials: N
authors.lastname: Baaka
authors.affiliation: a Faculty of Sciences of Monastir , Research Unit of Applied Chemistry and Environment (UR13ES63) , Monastir , Tunisia.
authors.forename: Adel
authors.initials: A
authors.lastname: Mahfoudhi
authors.affiliation: a Faculty of Sciences of Monastir , Research Unit of Applied Chemistry and Environment (UR13ES63) , Monastir , Tunisia.
authors.forename: Wafa
authors.initials: W
authors.lastname: Haddar
authors.affiliation: a Faculty of Sciences of Monastir , Research Unit of Applied Chemistry and Environment (UR13ES63) , Monastir , Tunisia.
authors.forename: Mohamed Farouk
authors.initials: MF
authors.lastname: Mhenni
authors.affiliation: a Faculty of Sciences of Monastir , Research Unit of Applied Chemistry and Environment (UR13ES63) , Monastir , Tunisia.
authors.forename: Zine
authors.initials: Z
authors.lastname: Mighri
mesh_terms: D001673:Biodegradation, Environmental; D057919:Biological Oxygen Demand Analysis; D003116:Color; D004396:Coloring Agents / Q000737:chemistry*; D032561:Cotton Fiber; D007220:Industrial Waste; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet; D032363:Tamaricaceae / Q000737:chemistry*; D013784:Textiles; D014865:Waste Disposal, Fluid
chemical_list: D004396:Coloring Agents; D007220:Industrial Waste; D010936:Plant Extracts
keywords: Tamarix aphylla (L.) Karst; cationising agents; environmental indicators; fastness properties; mordanting; natural dye