Radiation Effects in Textile Materials

Irradiation processes have several commercial applications, in the coating of metals, plastics, and glass, in printing, wood finishing, film and plastic cross-linking, and in the fields of adhesive and electrical insulations. The advantages of this technology are well known

Plasma-Enhanced Vapor Deposition Process for the Modification of Textile Materials

Nowadays many techniques are used for the surface modification of fabrics and textiles. Two fundamental techniques based on vacuum deposition are known as chemical vapor deposition (CVD) and physical vapor deposition (PVD). In this chapter, the effect of plasma-enhanced physical and chemical vapor deposition on textile surfaces is investigated and explained

Simulation of Single Fibre Wetting

A stationary system composed of a fibre, liquid and air consists of a background for the shape determination of a typical liquid at the liquid-fibre inter-phase. Up to the present, it has not been possible to define this shape by a mathematical function. In this study a differential equation was found and solved analytically, describing the liquid curve at the mentioned interphase in the air-fiber-liquid system. This equation was solved and the result calculated by a numerical method, which were then compared with the experimental data obtained by a measurement technique developed by us

Theoretical Model of the Influence of Textile Structure on Wetting Hysteresis

In our work we theoretically analysed the influence of textile structure on the hysteresis of wetting. The situation with current fabrics is complicated and the properties of fibers, yarns, and geometric arrangement also influence their wetting. The basis of the theoretical model is a simple plain weave fabric made from monofilaments. From this model we determined the real contact angle and apparent contact angle, and later we compared these values with results from the experimental measurement

Free Energy Balance Of Polyamide, Polyester And Polypropylene Surfaces

The wettability of a solid surface is often characterized by the contact angle of liquid on the solid surface. The wettability is pertinent to surface energy, which is an important parameter. The wettability can be affected, for example, by the roughness of the solid surface. In our work textiles are used as macroscopic roughness surfaces, and smooth plate surfaces are used as well to determine surface energies. For the calculation of surface energies it is fundamental to know the contact angle. The advancing and receding contact angles are measured, and the relation between the hysteresis and surface energy is monitored.Research Centrum "TEXTILE II" [1M4674788501

Tensile, surface and thermal characterization of jute fibres after novel treatments

Jute fibres have been treated with enzymes, CO2 pulsed infra red laser, ozone and plasma to study the effect of these treatments on their tensile, surface and thermal properties. Surface characteristics of jute fibres have been examined by scanning electron microscopy and Fourier transform infrared spectroscopy while thermal characteristics using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). No significant reduction in the tensile strength of treated jute fibres is observed. Changes in the surface chemical composition and increase in surface roughness are observed after the treatments. DSC data show a decrease in decomposition temperature of hemicellulose of all treated jute fibres. DSC and TGA analyses show no marginal difference in the cellulose decomposition temperature of untreated and treated jute fibres. The study shows a change in the surface chemistry and morphology after treatments without any substantial change in the thermal stability and tensile properties of jute fibres. The study also reveals the potential use of infrared laser and ozone treatments for the modification of natural fibres besides the conventional treatments using enzymes and plasma