Monika Vysanska

Technical University of Liberec | TUL · Department of Textile Technologies

The electrically conductive textiles market expands every year because of its broader applications. Especially in electromagnetic shielding applications, textile materials are widely used. There have been many studies on the development and manufacturing of conductive textiles, but there are very few studies related to their deformation performance...

Nowadays, the strain sensor is widely used in the health care industry to monitor the human body. The warp-knitted and weft-knitted structures are interesting with the behavior during stretching; the yarns were arranged crisscross and act as a spring-like behaviour because of their structures. While stretching, the loop in the knit structure reacts...

This work deals with analysis of the behavior of two and three-fold twisted multifilament yarn in dependence on twist level. The structure and consequently various parameters and properties of filament fibers bundle are changed due to twisting. For experiment, two and three-fold twisted polyamide and polyester multifilament yarns were used. Selecte...

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 str...

A diameter of single yarn is well known as one of the main geometrical descriptive characteristics of yarn formation. Many experimental methods also measure and define this parameter while assuming cylindrical shape of a single yarn. Very rare information exists in the case of two-ply yarn geometrical parameters. This paper, in its first part, intr...

Although the use of shape memory materials in textiles have been widely studied [1], the textile application of thin wires made from Nickel-Titanium shape memory alloys remains almost unexplored [2]. There are mainly two reasons for that. First, metallic materials are in general considered for many reasons as not appropriate for textiles. Second, t...

Manufacturing of a macro-scale helix auxetic yarn (HAY) was described. Consequently areal woven fabric and three kinds of woven fabrics various in weaves were introduced respectively. Their expected auxetic effect (assured by double helix yarn) was tested through the Poisson's ratio value (for auxetic structure is negative). Other observed paramete...

This chapter discusses several models which describe the mechanical properties of staple fibre yarns. Starting with definitions of yarns and their structure, a simple model of a yarn is developed. This is then used to describe the packing density of a yarn and the maximum twist it can bear without coiling. The model is then applied to determine the...

We report on a particular direction of currently conducted extended research on novel textiles with integrated thin metallic filaments made of an intermetallic shape memory NiTi alloy exhibiting functional behaviour such as superelastic deformation up to 10% and a thermally induced shape memory effect. Within this research direction we focus on dev...

This is preliminary report describing results of the single fiber pull-out tests conducted with newly developed composite material based on integration of NiTi filaments into the silicon-polyester matrix. Nominal shear stress at debonding, debonding force, and spring constant characterizing fiber-matrix interface prior to a failure of the adhesion,...

A woven fabric structure is defined by mutual threads interlacing in the fabric as well as the basic parameters of the fabric. The interrelation among fabric parameters can be obtained by considering a geometrical model of the fabric and specific experimental methods. The geometrical model is mainly concerned with the shape taken up by the yarn in...