A New Approach to Dyeing of 80 : 20 Polyester/Cotton Blended Fabric Using Disperse and Reactive Dyes

Muralidharan, B.; Laya, S.

doi:10.5402/2011/907493

Cited by 14 publications

(9 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, discharge of disperse dyes have become a subject of concern in the universe due to its harmful and toxic effects to living organisms and the environment [ 143 ]. As far as the wastewater treatment technologies are concerned, different techniques have been utilized for the reduction and degradation of dispersed dyes such as chemical precipitation, H 2 O 2 adsorption, oxidation by chlorine, electrochemical treatment, ozone electrolysis, adsorption, ion pair extraction, flocculation, coagulation, membrane filtration, and specially the photocatalytic process [ 145 – 147 ].…”

Section: Photocatalytic Decolorization Of Synthetic Dyesmentioning

confidence: 99%

Recent Advances in Heterogeneous Photocatalytic Decolorization of Synthetic Dyes

Julkapli

Bagheri

Hamid

2014

The Scientific World Journal

286

View full text Add to dashboard Cite

During the process and operation of the dyes, the wastes produced were commonly found to contain organic and inorganic impurities leading to risks in the ecosystem and biodiversity with the resultant impact on the environment. Improper effluent disposal in aqueous ecosystems leads to reduction of sunlight penetration which in turn diminishes photosynthetic activity, resulting in acute toxic effects on the aquatic flora/fauna and dissolved oxygen concentration. Recently, photodegradation of various synthetic dyes has been studied in terms of their absorbance and the reduction of oxygen content by changes in the concentration of the dye. The advantages that make photocatalytic techniques superior to traditional methods are the ability to remove contaminates in the range of ppb, no generation of polycyclic compounds, higher speed, and lower cost. Semiconductor metal oxides, typically TiO2, ZnO, SnO, NiO, Cu2O, Fe3O4, and also CdS have been utilized as photocatalyst for their nontoxic nature, high photosensitivity, wide band gap and high stability. Various process parameters like photocatalyst dose, pH and initial dye concentrations have been varied and highlighted. Research focused on surface modification of semiconductors and mixed oxide semiconductors by doping them with noble metals (Pt, Pd, Au, and Ag) and organic matter (C, N, Cl, and F) showed enhanced dye degradation compared to corresponding native semiconductors. This paper reviews recent advances in heterogeneous photocatalytic decolorization for the removal of synthetic dyes from water and wastewater. Thus, the main core highlighted in this paper is the critical selection of semiconductors for photocatalysis based on the chemical, physical, and selective nature of the poisoning dyes.

show abstract

Section: Photocatalytic Decolorization Of Synthetic Dyesmentioning

confidence: 99%

Recent Advances in Heterogeneous Photocatalytic Decolorization of Synthetic Dyes

Julkapli

Bagheri

Hamid

2014

The Scientific World Journal

286

View full text Add to dashboard Cite

show abstract

“…This is as a result of greater stability conferred by the solvents on the treated fibres. The increase in the strength and stability of the treated materials can be ascribed to the improvements in the structural order of the polymer matrix and generation of more number of crystallites leading to improvement in the resistance power to deform the materials with higher inter chain bond [11]. The results obtained here are similar to available reports available on the effects of solvent pretreatments on polymer wherein the solvents do not penetrate the compact crystalline region in the polymer and therefore do not adversely affect the strength of the materials [10].…”

Section: Tenacitymentioning

confidence: 99%

Effect of Chlorinated Solvents on Some Mechanical Properties of Polyester Fibre.

Popoola¹,

Adetuyi²,

Oyeleke³

2014

IOSRJAC

View full text Add to dashboard Cite

The effects of these treatments in a relaxed condition on the tensile properties of the treated polyethylene terephthalate (PET) fibres for modulus (MPa), tenacity (MPa) and extension at break (mm) were determined. A fall in the initial (Young's) modulus of all the treated fibres compared to the control ones was noticed, this may be due to the reduction in stiffness of the phenyl residue on the terephthalate group. The increase in the tenacity and extension at break of the treated fibres compared to the control ones could be linked to the stability conferred on them by the solvent treatments and the convolution occurring from chain folds in the treated fibres. Tetrachloromethane (TCM) was found to give the highest stable equilibrium tenacity and extension at break values within the first 600 secs of the treatments while these two quantities continue to vary with increase in time of treatment for the other three solvents. The stability of these two quantities in TCM treated fibres at shorter treatment time is a useful indication of textile materials that would not be deformed easily during processing and dry cleaning operations.

show abstract

“…Dyeing of polyester/cotton blends poses some challenges to dyer as polyester shows a hydrophobic character while cotton shows a hydrophilic character making it inevitable to dye them with a chemically different class of dyes [8,9]. Muralidharan and Laya [10], found that Polyester/cotton blended fabrics are often coloured using a two-bath or onebath two-step dyeing process. It discusses a new method for dyeing polyester/cotton blends utilizing dispersion and reactive dyes in a one-bath procedure that uses an azeotropic ternary mixture of organic solvents as a pretreatment.…”

Section: Introductionmentioning

confidence: 99%

“…These dying techniques, on the other hand, are time-consuming and difficult. The process of the one-bath two-step dyeing process is shorter than the two-bath method but its disadvantage is lower dyeability from migration and poor reproducibility since two different sorts of dyes are utilized in an equivalent bath [10]. The one-bath one-step dyeing process of polyester/cotton blends with disperse/ reactive dyes has advantages over the conventional dyeing processes on reducing the dyeing cycle as well as energy consumption [16].…”

Section: Introductionmentioning

confidence: 99%

One-bath one-step dyeing of polyester/cotton (PC) blends fabric with disperse dyes after acetylation of cotton

2021

View full text Add to dashboard Cite

Aiming at the classic problem of dyeing of polyester–cotton blended fabric one-bath one-step dyeing of PC blends with disperse dye after surface modification of cotton were studied. Surface modification of cotton was carried out using fibrous acetylation methods. The optimum value for surface modification was obtained with a concentration of acetylation agent 16% and time of reaction 2.5 h, gave a percent acetylation of 34. Surface chemistry and thermal decomposition were studied by using FTIR spectra and TGA. The tear strength crease recovery, pilling and abrasion resistance were evaluated. The experiment result of dyeing showed that the optimum value was obtained with dye concentration above 1% at a temperature of 120 °C warp tensile strength decreased by 12% and weft tensile strength was decreased by 9% from the control half-bleached fabric. Results of this study showed that one-step one bath dyed modified PC blend with disperse dye fabric presents good fastness property and color strength values compared with conventional two-bath dyed fabric.

show abstract

A New Approach to Dyeing of 80 : 20 Polyester/Cotton Blended Fabric Using Disperse and Reactive Dyes

Cited by 14 publications

References 25 publications

Recent Advances in Heterogeneous Photocatalytic Decolorization of Synthetic Dyes

Recent Advances in Heterogeneous Photocatalytic Decolorization of Synthetic Dyes

Effect of Chlorinated Solvents on Some Mechanical Properties of Polyester Fibre.

One-bath one-step dyeing of polyester/cotton (PC) blends fabric with disperse dyes after acetylation of cotton

Contact Info

Product

Resources

About