Long Path Towards to Success in Electrospun Nanofiber Yarn Production Since 1930’s: A Critical Review

Fatma Göktepe and Beyza Buzol Mülayim

Published: 12 Jun 2018, DOI: https://doi.org/10.1515/aut-2018-0004

Direct conversion of nanofibers into a yarn formed by electrospinning has begun to draw attention recently while pioneering attempts in fact go back to 1930s. Once nanofiber yarns are spun successfully by electrospinning, obviously, this would open new gates for many different applications. However, this is still a challenging task and there is no system accepted universally yet. There are more than 20 different approaches available so far but with serious limitations. In this review, they were categorized as (i) systems for production of parallel bundle of nanofibers and (ii) systems for production of twisted nanofiber yarns, presenting potential applicability of each with a critical point of view. The results show that some of the attempts mainly present basic conceptual ideas only. There are some works to produce real twisted nanofiber yarns continuously while mainly funnel, disc, or ring collectors have been used as the twisting element. However, there is limited information regarding stability of spinning system or control of yarn properties. This review also analyses the technical properties of electrospun nanofiber yarns summarizing the available data in terms of yarn properties such as fiber fineness, twist, production speed, mechanical properties, polymer types, and other important parameters available.


Date Added: 2018-06-17

Influence of Twist on Selected Properties of Multifilament Yarn

Influence of Twist on Selected Properties of Multifilament Yarn

Iva Mertová, Eva Moučková, Bohuslav Neckář and Monika Vyšanská

Published: 12 Jun 2018, DOI: https://doi.org/10.1515/aut-2017-0018

Owing to twisting of filament fiber bundle, the structure and consequently various parameters and properties of a fiber bundle are changed. The aim of the work is to verify the effect of multifilament yarn twist (or twist coefficient) on selected mechanical properties such as multifilament tenacity, breaking elongation, and coefficient of fiber stress utilization in the yarn. Furthermore, the influence of twist on structural parameters such as the angle of peripheral fibers, the packing density, and the substance cross-sectional area of fiber bundle is observed. Two multifilament yarns with different filament cross-section shape and material were used for the experiment. Experimentally obtained data was compared with the known model dependencies derived decades ago based on the helical model. It can be stated that multifilament yarn retraction can be predicted based on the angle of peripheral fibers using the Braschler’s model. The coefficient of fiber stress utilization in the multifilament yarn determined experimentally corresponds with a theoretical curve, constructed according to Gégauff and Neckář, in the area of Koechlin’s twist coefficient α > 54 ktex1/2 m−1. Results as well as possible causes of deviations of experimental data from the theoretical one are discussed in this work.


Date Added: 2018-06-17

Experimental and Numerical Analysis of the Tendon Repair Process Using Tubular Braided Fabrics

Experimental and Numerical Analysis of the Tendon Repair Process Using Tubular Braided Fabrics

Date Added: 2018-06-17

Numerical Study of Extra-Large Parachute’s Pre-Inflation in Finite Mass Situation

Numerical Study of Extra-Large Parachute’s Pre-Inflation in Finite Mass Situation

Date Added: 2018-06-17

An Effect of Washing on Durability of Hydrophobic Finishes of Membrane Laminates

An Effect of Washing on Durability of Hydrophobic Finishes of Membrane Laminates

Date Added: 2018-06-17

Use a Modified Ring Method to Predict Drape Properties in Drapery Fabrics

Use a Modified Ring Method to Predict Drape Properties in Drapery Fabrics

Date Added: 2018-06-17

Effects of Processing Parameters on the Mechanical Properties of Aramid Air Textured Yarns for Protective Clothing

Effects of Processing Parameters on the Mechanical Properties of Aramid Air Textured Yarns for Protective Clothing


Date Added: 2018-06-17

Implementation of Statistical Process Control (SPC) in the Sewing Section of Garment Industry for Quality Improvement

Implementation of Statistical Process Control (SPC) in the Sewing Section of Garment Industry for Quality Improvement

Date Added: 2018-06-17

Response Surface Modeling of Physical and Mechanical Properties of Cotton Slub Yarns

Response Surface Modeling of Physical and Mechanical Properties of Cotton Slub Yarns

Date Added: 2018-06-17

Application of Knitting Structure Textiles in Medical Areas

Application of Knitting Structure Textiles in Medical Areas

Date Added: 2018-06-17

Investigation of Mechanical and Utility Properties of Two-Layer Cotton Woven Fabrics

Investigation of Mechanical and Utility Properties of Two-Layer Cotton Woven Fabrics

Date Added: 2018-06-17

Effect of Thickness, Density and Cavity Depth on the Sound Absorption Properties of Wool Boards

Effect of Thickness, Density and Cavity Depth on the Sound Absorption Properties of Wool Boards

Hua Qui and Yang Enhui

Date Added: 2018-06-17
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