The Experts below are selected from a list of 63 Experts worldwide ranked by ideXlab platform
Christopher Hurren - One of the best experts on this subject based on the ideXlab platform.
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Ultrasonic scouring of wool and its effects on Fibre breakage during carding
The Journal of The Textile Institute, 2011Co-Authors: Christopher Hurren, Cailing L. Ding, Lijing Wang, Tong Lin, Xungai WangAbstract:Ultrasonics has shown the potential to reduce the cost and environmental impact of textile processing. This work investigates the impact of ultrasonic scouring on Fibre Entanglement caused during the scouring process. Levels of Fibre Entanglement were quantified by measuring Fibre length using OFDA4000 after carding. A significant reduction in Fibre Entanglement after ultrasonic scouring was observed and this was due to a reduced Fibre migration in the wash bath when compared with the mechanical agitation seen in conventional scouring process. Fibre cuticle scale damage resulting from the ultrasonic irradiation may also have contributed to the reduction in Fibre Entanglement. A reduced level of Fibre Entanglement from ultrasonic wool scouring leads to a reduction in Fibre breakage during carding.
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Study into the ultrasonic cleaning of wool
2010Co-Authors: Christopher HurrenAbstract:This research studied the use of ultrasonic irradiation during wool cleaning with an aim to improve the cleaning process and reduce its impact on the environment. The research found that ultrasonic cleaning reduced energy, detergent and chemicals consumption, reduced Fibre Entanglement and had no significant effect on Fibre properties.
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A study of ultrasonic scouring of greasy Australian wool
Journal of Xi'an University of Engineering Science and Technology, 2006Co-Authors: Christopher Hurren, Maolin Zhang, Xin Liu, Xungai WangAbstract:This paper examined the application of ultrasonic agitation in conventional non-ionic detergent wool scouring. Wool samples with different mean Fibre diameters were selected and subjected to various scouring times and temperatures with and without ultrasonic agitation. Scouring efficiency was assessed in tenns of grease content, Fibre whiteness, scouring yield and Fibre Entanglement. The scoured Fibres were also examined under a scanning e lectron microscopy to evaluate the effect of ultrasonic agitation on the Fibre surface structure. Ultrasonic agitation was seen to significantly improve the removal of grease from the wool Fibre. Lower detergent concentrations could be used with ultrasonic agitation and still achieve the same level of scouring as conventional scouring. Lower scouring temperatures of 50"C were feasible with ultrasonic agitation for 22 micron Fibres. Ultrasonic agitation produced vir tually no Fibre Entanglement during scouring. The Fibre surface was modified by ultrasonic agitation causing moder ate cracking of the Fibre cuticle . The Fibre cracking increased the rate of pre-metalised dye pick up at 40"C.
Stephen. J. Russell - One of the best experts on this subject based on the ideXlab platform.
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characterisation of Fibre Entanglement in nonwoven fabrics based on knot theory
Composites Science and Technology, 2012Co-Authors: S Grishanov, Muhammad Tausif, Stephen. J. RussellAbstract:Owing to the structural complexity, the Entanglement of Fibres within nonwoven fabrics is generally characterised in indirect way by determining fabric mechanical properties using destructive testing and empirical modelling. Using elements of knot theory, a new approach is presented in this paper to characterise degree of Entanglement in webs and nonwoven fabrics by topological representation of the fibrous assembly. The identification of Fibre crossings followed by calculation of splitting number gives a numerical estimate of the degree of Entanglement that can be potentially linked to the mechanical properties of the fibrous assembly.
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Application of dynamic recursive splitting to estimate Fibre Entanglement in simulated nonwoven fibrous assemblies
Composites Science and Technology, 2012Co-Authors: S Grishanov, Muhammad Tausif, Stephen. J. RussellAbstract:Abstract Fibrous nonwovens comprise of Fibres or filaments bonded by various methods. Depending on the mode of fabric formation these Fibres may be entangled; this affects the physical properties of the bulk structure. Estimating the degree of Entanglement based on relative Fibre arrangement in such structures is highly challenging. In this paper, Fibre-to-Fibre interactions within simulated fibrous assemblies are analysed using topological and geometrical principles as a means to quantify Entanglement. The underlying theoretical framework in which splitting number is used to characterise Entanglement has been previously described [1] . A detailed algorithm and its practical application for the estimation of Fibre Entanglement are reported based on Dynamic Recursive Splitting (DYRES).
Xungai Wang - One of the best experts on this subject based on the ideXlab platform.
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Ultrasonic scouring of wool and its effects on Fibre breakage during carding
The Journal of The Textile Institute, 2011Co-Authors: Christopher Hurren, Cailing L. Ding, Lijing Wang, Tong Lin, Xungai WangAbstract:Ultrasonics has shown the potential to reduce the cost and environmental impact of textile processing. This work investigates the impact of ultrasonic scouring on Fibre Entanglement caused during the scouring process. Levels of Fibre Entanglement were quantified by measuring Fibre length using OFDA4000 after carding. A significant reduction in Fibre Entanglement after ultrasonic scouring was observed and this was due to a reduced Fibre migration in the wash bath when compared with the mechanical agitation seen in conventional scouring process. Fibre cuticle scale damage resulting from the ultrasonic irradiation may also have contributed to the reduction in Fibre Entanglement. A reduced level of Fibre Entanglement from ultrasonic wool scouring leads to a reduction in Fibre breakage during carding.
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A study of ultrasonic scouring of greasy Australian wool
Journal of Xi'an University of Engineering Science and Technology, 2006Co-Authors: Christopher Hurren, Maolin Zhang, Xin Liu, Xungai WangAbstract:This paper examined the application of ultrasonic agitation in conventional non-ionic detergent wool scouring. Wool samples with different mean Fibre diameters were selected and subjected to various scouring times and temperatures with and without ultrasonic agitation. Scouring efficiency was assessed in tenns of grease content, Fibre whiteness, scouring yield and Fibre Entanglement. The scoured Fibres were also examined under a scanning e lectron microscopy to evaluate the effect of ultrasonic agitation on the Fibre surface structure. Ultrasonic agitation was seen to significantly improve the removal of grease from the wool Fibre. Lower detergent concentrations could be used with ultrasonic agitation and still achieve the same level of scouring as conventional scouring. Lower scouring temperatures of 50"C were feasible with ultrasonic agitation for 22 micron Fibres. Ultrasonic agitation produced vir tually no Fibre Entanglement during scouring. The Fibre surface was modified by ultrasonic agitation causing moder ate cracking of the Fibre cuticle . The Fibre cracking increased the rate of pre-metalised dye pick up at 40"C.
Abdel-fattah M. Seyam - One of the best experts on this subject based on the ideXlab platform.
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Combined numerical and experimental investigation on the effect of jet pressure and forming belt geometry on the hydroEntanglement process
Journal of the Textile Institute, 2009Co-Authors: Ping Xiang, Andrey V. Kuznetsov, Abdel-fattah M. SeyamAbstract:HydroEntanglement is a mechanical bonding process utilised to produce nonwoven fabrics. A web of loose Fibres is put on a forming belt or perforated screen to form an integrated fabric with desired aesthetics by subjecting the web to multiple rows of fine high-pressure water jets. Mechanical performance of hydroentangled nonwovens is determined by the degree of the Fibre Entanglement, which depends on process parameters. This study presents the results of combined experimental and numerical investigation on the effects of the jet pressure and forming belt geometry on Fibre Entanglement. Extensive comparisons of simulations with experimental data are reported and analysed to give a clear understanding of the effect of Fibreweb and forming belt properties on the critical jet pressure. The modelling results are in good correlation with experimental data for a wide range of jet pressures. The effect of the jet count per unit length on the degree of Fibre Entanglement is also investigated.
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Experimental and numerical investigation of the peeling force required for the detachment of fabric from the forming belt in the hydroEntanglement process
Journal of the Textile Institute, 2009Co-Authors: Ping Xiang, Andrey V. Kuznetsov, Abdel-fattah M. SeyamAbstract:HydroEntanglement is a fast-growing process for manufacturing non-woven fabrics. In this process, multiple fine jets of highly pressurised water are directed towards a Fibreweb composed initially of loose Fibres, supported by the forming belt. The impact of the jets causes Fibre Entanglement in the Fibreweb and produces an integrated fabric with desired aesthetics. It is important that, at the end of the process, the Fibreweb could be easily separated from the forming wires. In this paper, the peeling force required for the separation of the hydroentangled fabric from the forming wires is measured experimentally. Numerical simulations of the hydroEntanglement process are also carried out to predict the probability of Fibres to be pushed in the knuckles of the forming wires. The Fibres that get caught in the knuckles are mainly responsible for the peeling force of the fabric from the forming wires. The Fibreweb is modelled as a porous layer, which is supported by forming wires. By correlating experimental ...
S Grishanov - One of the best experts on this subject based on the ideXlab platform.
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characterisation of Fibre Entanglement in nonwoven fabrics based on knot theory
Composites Science and Technology, 2012Co-Authors: S Grishanov, Muhammad Tausif, Stephen. J. RussellAbstract:Owing to the structural complexity, the Entanglement of Fibres within nonwoven fabrics is generally characterised in indirect way by determining fabric mechanical properties using destructive testing and empirical modelling. Using elements of knot theory, a new approach is presented in this paper to characterise degree of Entanglement in webs and nonwoven fabrics by topological representation of the fibrous assembly. The identification of Fibre crossings followed by calculation of splitting number gives a numerical estimate of the degree of Entanglement that can be potentially linked to the mechanical properties of the fibrous assembly.
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Application of dynamic recursive splitting to estimate Fibre Entanglement in simulated nonwoven fibrous assemblies
Composites Science and Technology, 2012Co-Authors: S Grishanov, Muhammad Tausif, Stephen. J. RussellAbstract:Abstract Fibrous nonwovens comprise of Fibres or filaments bonded by various methods. Depending on the mode of fabric formation these Fibres may be entangled; this affects the physical properties of the bulk structure. Estimating the degree of Entanglement based on relative Fibre arrangement in such structures is highly challenging. In this paper, Fibre-to-Fibre interactions within simulated fibrous assemblies are analysed using topological and geometrical principles as a means to quantify Entanglement. The underlying theoretical framework in which splitting number is used to characterise Entanglement has been previously described [1] . A detailed algorithm and its practical application for the estimation of Fibre Entanglement are reported based on Dynamic Recursive Splitting (DYRES).