Low‐temperature plasma processing for the enhancement of surface properties and dyeability of wool fabric

Mendhe, Pankaj; Arolkar, Gauree A.; Shukla, S. R.; Deshmukh, Rajendra R.

doi:10.1002/app.43097

Cited by 13 publications

(5 citation statements)

References 28 publications

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“…Plasma treatment can improve the water and dye penetration into wool fibres and enhance the wicking properties of woollen fabric . The dyeability of wool with synthetic and natural dyes can be improved by plasma treatment …”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been published on improving the dyeability of wool using plasma treatment, but few reports detail using statistical approaches for the design of experiments, analysis and optimisation of the process for improved natural dyeing. In traditional methods of experimental design like full factorial design, the number of runs is high and may need large amounts of resources and time.…”

Section: Introductionmentioning

confidence: 99%

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Application of D‐optimal design in the analysis and modelling of dyeing of plasma‐treated wool with three natural dyes

Haji

2019

Coloration Technology

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Both the dyeing and finishing of textiles with natural compounds are gaining increasing attention because of various environmental and health problems associated with the use of synthetic reagents. In this study, wool fibres were dyed with three natural dyes, namely, Arnebia euchroma, cotton pods and harmal seeds. Alum was used as the mordant, and samples were mordanted by the premordanting method. Oxygen plasma was employed for the surface modification of wool. Plasma treatment time, alum concentration, dyebath temperature and pH were selected as the process variables, and their effects on the K/S of the dyed samples were analysed using D‐optimal design. The surface topography, morphology and chemistry of the wool fibres after plasma treatment were studied by atomic force microscopy (AFM), scanning electron microscopy (SEM) and Fourier Transform–infrared spectroscopy (FTIR), respectively. FTIR confirmed the creation of new oxygen‐containing groups on the surface of wool fibres after plasma treatment. SEM and AFM images confirmed the surface etching and increase in the roughness of plasma‐treated fibres. Increasing the dyebath pH and temperature increased the K/S of the dyed samples. Increasing the amount of alum mordant increased the K/S of samples dyed with cotton pods but decreased the K/S of samples dyed with A. euchroma and harmal seeds. Increasing the plasma treatment time improved the K/S of samples dyed with A. euchroma and cotton pods but had no significant effect on the K/S of samples dyed with harmal seeds.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of D‐optimal design in the analysis and modelling of dyeing of plasma‐treated wool with three natural dyes

Haji

2019

Coloration Technology

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“…WT, determined by the area under the stress–strain curve up to the fracture (breaking point) from A to D using Microsoft Excel, represents the energy required for extending the surgical gown length without damaging it and reflects the mobility of the garment under deformation (up to fracture) [ 49 , 50 , 51 ]. WT increased as follows: 51,695, 54,675, and 58,675 J/m 3 for untreated and for treated with OMTSE and OMSE, respectively, as in Equation Equation (7): (WT) OMSE > (WT) OMTSE > (WT) untreated …”

Section: Resultsmentioning

confidence: 99%

The Influence of Different Plasma Cell Discharges on the Performance Quality of Surgical Gown Samples

Asghar

Galaly

2021

Materials

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An experimental study was performed on a low-density plasma discharge using two different configurations of the plasma cell cathode, namely, the one mesh system electrodes (OMSE) and the one mesh and three system electrodes (OMTSE), to determine the electrical characteristics of the plasma such as current–voltage characteristics, breakdown voltage (VB), Paschen curves, current density (J), cathode fall thickness (dc), and electron density of the treated sample. The influence of the electrical characteristics of the plasma fluid in the cathode fall region for different cathode configuration cells (OMSE and OMTSE) on the performance quality of a surgical gown was studied to determine surface modification, treatment efficiency, exposure time, wettability property, and mechanical properties. Over a very short exposure time, the treatment efficiency for the surgical gown surface of plasma over the mesh cathode at a distance equivalent to the cathode fall distance dc values of the OMTSE and for OMSE reached a maximum. The wettability property decreased from 90 to 40% for OMTSE over a 180 s exposure time and decreased from 90 to 10% for OMSE over a 160 s exposure time. The mechanisms of each stage of surgical gown treatment by plasma are described. In this study, the mechanical properties of the untreated and treated surgical gown samples such as the tensile strength and elongation percentage, ultimate tensile strength, yield strength, strain hardening, resilience, toughness, and fracture (breaking) point were studied. Plasma had a more positive effect on the mechanical properties of the OMSE reactor than those of the OMTSE reactor.

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“…The elastic region E increased from 2.75 KPa for pre-treated samples to 3.2 KPa for samples treated with L > R, and to 3.5 KPa for samples treated with L < R [34]. The area under the curve of the elastic region AB represents the tensile resilience (RT) [35] as in:…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Theoretical and Experimental Study of the Effect of Plasma Characteristics on the Mechanical Properties of Ihram Cotton Fabric

Galaly

Dawood

2022

Membranes

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Theoretical and experimental investigations of the radial distribution function of the electron temperature (RDFT), for the abnormal glow region in a low-density plasma fluid and weakly ionized argon gas, are provided. The final proved equation of RDFT agrees with the experimental data for different low pressures ranging from 0.2 to 1.2 torr, confirming that the electron temperatures decrease with an increasing product of radial distance (R) and gas pressures (P). A comparison of the two configurations: for the axial distance (L), from the tip of the single probe to the cathode electrode, and the cathode electrode radius (R), shows that, in both cases, the generated plasma temperatures decrease, and densities increase. The RDFT accurately depicts a dramatic decrease for L < R by 60% compared with the values for L > R. This indicates that, when L < R, the rate of plasma loss by diffusion is reduced. Under this investigation, the mechanical characteristics of treated and pre-treated Ihram Cotton Fabric Samples were compared under the Influence of the different two configurations of Plasma Cell discharge: . These characteristics included resiliency, strain hardening, tensile strength, elongation percentage, yield strength, ultimate tensile strength, toughness, and fracture (breaking) point. Furthermore, the mechanism parameters of plasma interaction with textile membrane will be discussed, such as: process mechanism, interaction, and gas type.

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Low‐temperature plasma processing for the enhancement of surface properties and dyeability of wool fabric

Cited by 13 publications

References 28 publications

Application of D‐optimal design in the analysis and modelling of dyeing of plasma‐treated wool with three natural dyes

Application of D‐optimal design in the analysis and modelling of dyeing of plasma‐treated wool with three natural dyes

The Influence of Different Plasma Cell Discharges on the Performance Quality of Surgical Gown Samples

Theoretical and Experimental Study of the Effect of Plasma Characteristics on the Mechanical Properties of Ihram Cotton Fabric

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