Eco-friendly surface modification of natural fibres to improve dye uptake using natural dyes and application of natural dyes in fabric finishing: A review

2021 ◽  
Vol 43 ◽  
pp. 2868-2871
Author(s):  
Mumal Singh ◽  
Mona Vajpayee ◽  
Lalita Ledwani
2011 ◽  
Vol 15 (3) ◽  
pp. 1-10 ◽  
Author(s):  
N.F. Ali ◽  
R.S.R.EL. Mohamedy ◽  
E.M. El- Khatib

Natural dyes extracted from Cassia fistula and onion peels are used to dye wool that is pretreated with chitosan by using tannic acid as a mordant. The effect of the mordant concentration on the color strength (K/S) is discussed. The results obtained indicated that K/S increases after treatment with chitosan. It is also noticed that K/S increases with an increasing concentration of chitosan. K/S also increases with an increase of mordant concentration until 4% and then decreases. The effect of the dye bath pH, dyeing temperature and dyeing time are also studied. The K/S and dye uptake exhibit high values. Good fastness properties of the dyed fabric are achieved. The antimicrobial activity of chitosan-treated wool fabric is tested in accordance to diffusion agents. Test organisms, such as Escherichia coli, Bacillus subitilus Pseudomons aeruginosa and Staphylococcus aureus are used and the results indicate that the samples treated with a lower concentration of chitosan exhibit a smaller inhibition zone.


2014 ◽  
Vol 554 ◽  
pp. 116-122 ◽  
Author(s):  
Seyed Meysam Khoshnava ◽  
Raheleh Rostami ◽  
Mohammad Ismail ◽  
Alireza Valipour

Although Natural Fibres have various potential and advantages such as lower in weight, embodied energy and toxicity but their drawbacks are provided relentless competition between natural and synthetics fibres. Intrinsically, Natural Fibres are hydrophilic that is leaded to poor resistance to moisture and incompatible to hydrophobic polymer matrix. This incompatibility of natural fibres results in poor fibre/matrix interface which in turn leads to reduce mechanical properties of the composites. This study try to litreature some methods of chemical treatment or surface modification of Natural Fibres for improving this drawback of natural fibres. The objective of this research is fungi treatment as Green Surface Treatment that is indicate to environmental friendlier process. The use of fungi can provide low cost, highly efficient and environmentally friendly alternatives to natural fibre surface treatment.


2012 ◽  
Vol 457-458 ◽  
pp. 1101-1104
Author(s):  
Pi Bo Ma

In this study, corona discharge treatment is applied to cotton fabric at various discharge voltages and time. The dye uptake of treated fabric was increased when the applied voltage and treating time increased. Its effects on surface modification of cotton fabric and its application in finishing are investigated with a range of analytical methods. The results suggest that corona discharge can be successfully applied the finishing of cotton fabric, especially in the green processing of dyeing.


2012 ◽  
Vol 610-613 ◽  
pp. 590-593
Author(s):  
Panuwat Hernhow ◽  
Potjanart Suwanruji ◽  
Thitinun Karpkird ◽  
Jantip Suesat

The main goal of this work was to study the possibility of improving the natural dye uptake and their fastness properties on cotton fabrics by the application of monochlorotriazine-β- cyclodextrin (MCT-β-CD). Hence, MCT-β-CD was synthesized, characterized, and grafted on cotton fabrics via pad and cure method. The existence of MCT-β-CD on cotton fabrics was confirmed by nitrogen content (%N). Natural dyes used were colorants extracted from turmeric and cassumunar powders, and a commercial natural dye i.e. Natural Red Brown. The commercial one was water soluble whereas the extracted dyes were sparingly soluble in water. These natural dyes were applied on cotton by pad-dry method. The extracted dyes on MCT-β-CD treated cotton fabrics gave higher visual color yield (K/S) than the untreated ones. In contrast, a commercial natural dye exhibited lower color yield on the treated fabrics because of its water soluble nature. The color fastnesses of the natural dyes on the treated cotton fabrics were improved from the untreated cotton samples.


2003 ◽  
Vol os-12 (3) ◽  
pp. 1558925003os-12 ◽  
Author(s):  
Stephen Michielsen

The surface properties of fibers play critical roles in many applications such as wicking, soil resistance, adhesion, and bio-compatibility. This paper will discuss a new approach to surface modification in which polymers are grafted to naturally occurring graft-sites on the substrate. The surface modifying polymers contain a large number of new graft-sites, thus amplifying the potential graft-sites up to several thousand-fold. Subsequent modification of the graft-site amplifying polymer can be used to alter the surface charge, wettability, and dye-uptake. Critical features of this technology will be presented along with specific examples.


2005 ◽  
Vol 107 ◽  
pp. 125-128 ◽  
Author(s):  
Claudia Riccardi ◽  
R. Barni ◽  
P. Esena

Silk, as most of the natural textile fibres, shows many excellent qualities but also some defects. In particular natural fibres are in general delicate and cannot be treated under extreme conditions, for instance at high temperatures or in reactive solutions. This makes silk a very promising object for cold plasma treatment, which happens at room temperature in absence of solvents. A review of the different experimental results obtained at the research center PlasmaPrometeo on the surface modification of silk by various plasma processing will be presented.


Sign in / Sign up

Export Citation Format

Share Document