Simultaneous x‐linking and antimicrobial finishing of cotton fabric

Montazer, Majid; Afjeh, M. Gorbanali

doi:10.1002/app.25059

Cited by 110 publications

(51 citation statements)

References 25 publications

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“…Moreover it is resistant to common antimicrobial agents. 2,24 Almost all tests for evaluation of textile antibacterial effectiveness have proposed testing this bacterium. Also it has been deduced that antibacterial efficiency of silver composite against Klebsiella pneumoniae and Escherichia colli is higher than Staphylococcus aureus.…”

Section: Resultsmentioning

confidence: 99%

Comparing the effect of three processing methods for modification of filament yarns with inorganic nanocomposite filler and their bioactivity against staphylococcus aureus

2009

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This research compared three methods for producing and processing nanocomposite polypropylene filament yarns with permanent antimicrobial efficiency. The three methods used to mix antimicrobial agents based on silver nano particles with PP were as follows: 1) mixing of PP powder and inorganic nanocomposite filler with the appropriate concentration using a twin-screw extruder and preparing granules, 2) method 1 with a singlerather than twin-screw extruder, and 3) producing the masterbatch by a twin-screw extruder and blending it with PP in the melt spinning process. All pure polypropylene samples and other combined samples had an acceptable spinnability at the spinning temperature of 240 o C and take-up speed of 2,000 m/min. After producing as-spun filament yarns by a pilot plant, melt spinning machine, the samples were drawn, textured and finally weft knitted. The physical and structural properties (e.g., linear density, tenacity, breaking elongation, initial modulus, rupture work, shrinkage and crystallinity) of the as-spun and drawn yarns with constant and variable draw ratios (the variable draw ratio was used to gain a constant breaking elongation of 50%) were investigated and compared, while DSC, SEM and FTIR techniques were used to characterize the samples. Finally, the antibacterial efficiency of the knitted samples was evaluated. The experimental results revealed that the crystallinity reduction of the as-spun yarn obtained from method 1 (5%) was more than that of method 2 (3%), while the crystallinity of the modified as-spun yarns obtained with method 3 remained unchanged compared to pure yarn. However, the drawing procedure compensated for this difference. By applying methods 2 and 3, the drawing generally improved the tenacity and modulus of the modified fibers, whereas method 1 degraded the constant draw ratio. Although the biostatic efficiency of the nanocomposite yarns was excellent with all three methods, the modified fabrics obtained from methods 1 and 2 showed a higher bioactivity.

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Section: Resultsmentioning

confidence: 99%

Comparing the effect of three processing methods for modification of filament yarns with inorganic nanocomposite filler and their bioactivity against staphylococcus aureus

2009

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“…Moreover it is resistant to common antimicrobial agents. [3,28,29] Almost all tests for evaluation of textile antibacterial effectiveness have proposed testing this bacterium. Also it has been deduced that antibacterial efficiency of silver composite against Kleb.pneum and Escherichia colli is higher than Staphylococcus aureus.…”

Section: Methods Sample Type Propertymentioning

confidence: 99%

Processing and Properties of Nanocomposite Filament Yarns with Various Filler Concentrations from Two Different Modification Methods

Dastjerdi¹,

Mojtahedi²,

Shoshtari³

2008

Macromolecular Symposia

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Summary: In this research, the possibility of producing and processing nanocomposite polypropylene filament yarns with permanent antimicrobial efficiency has been assessed by comparing two different methods. Therefore two approaches were used to mix various blending contents of antimicrobial agents based on silver/TiO 2 nano particles with PP: 1) mixing of PP powder and inorganic nanocomposite powder as an antibacterial agent with the appropriate concentration in a twin screw extruder, preparing modified granules and feeding them to the melt spinning machine, 2) producing masterbatch by a twin screw extruder and blending it with PP in the melt spinning process. In both methods, pure PP and all other combined samples had an acceptable spinnability at the spinning temperature of 240 8C and take-up speed of 2000 m/min. After producing as-spun filament yarns by a pilot plant melt spinning machine, samples were drawn, textured and finally weft knitted. Physical and structural properties of as-spun and drawn yarns with constant and variable draw ratios were investigated and compared. Moreover, the DSC, SEM and FTIR techniques have been used for samples characterization. Finally antibacterial efficiency of knitted samples was evaluated. The experimental results indicated that the maximum crystallinity reduction of modified as-spun yarns reached 5%. But by applying method 2 (masterbatch), crystallinity of modified as-spun yarns remained unchanged compared to pure yarn. However, drawing procedure has compensated this difference. By applying the second method, the drawing generally improved the increase of tenacity and modulus of modified fibers, whereas in method 1 the opposite effect was noticed in the case of constant draw ratio. Although the biostatic efficiency of nanocomposite fibers was excellent in both methods, modified fabrics obtained from method 1 showed higher bioactivity.

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“…Antimicrobial finishing for cotton fabrics has attracted much interest from researchers in recent years. Many different kinds of antimicrobial agents have been employed in antimicrobial finishing of cotton fabrics, such as chitosan and its derivatives (Chung et al 1998;Lim and Hudson 2004;Montazer and Afjeh 2007), quaternary ammonium and phosphonium salts (Kenawy et al 2002) and metallic particles and compounds, including silver (Vigneshwaran et al 2007;Zhang et al 2009), zinc oxide (Vigneshwaran et al 2006) and titanium dioxide (Daoud et al 2005). However, antimicrobial activity on fabrics finished with these antimicrobial agents becomes weak after a short duration of time.…”

Section: Introductionmentioning

confidence: 98%

Orthogonal analysis for rechargeable antimicrobial finishing of plasma pretreated cotton

2015

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This paper reports results of an investigation of the effects of different parameters used in the antimicrobial finishing process on rechargeable antimicrobial finishing of cotton fabric after plasma pretreatment. Cotton fabric was pretreated with a mixture of nitrogen and helium plasma before coating with 5, 5-dimethylhydantoin (DMH) (i.e. plasma-pad-drycure) and then chlorinated with sodium hypochlorite to impart antimicrobial property. An orthogonal array testing strategy was employed for identifying optimal conditions for the coating process. After coating and chlorination, properties of finished cotton fabrics were measured in terms of concentration of chlorine, morphological properties of the surface and functional groups on the cotton fabric by Ultraviolet spectroscopy, Scanning electron microscope and Fourier Transform Infrared Spectroscopy, respectively. The results show that coating of plasma pretreated fabric with DMH, followed by chlorination, inhibits microorganisms effectively and the antimicrobial property against S. aureus is rechargeable.

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Simultaneous x‐linking and antimicrobial finishing of cotton fabric

Cited by 110 publications

References 25 publications

Comparing the effect of three processing methods for modification of filament yarns with inorganic nanocomposite filler and their bioactivity against staphylococcus aureus

Comparing the effect of three processing methods for modification of filament yarns with inorganic nanocomposite filler and their bioactivity against staphylococcus aureus

Processing and Properties of Nanocomposite Filament Yarns with Various Filler Concentrations from Two Different Modification Methods

Orthogonal analysis for rechargeable antimicrobial finishing of plasma pretreated cotton

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