The development of textronic and miniaturization of textile sensors allow them to be used as elements of an innovative system for measuring the vital functions of young children. One of the important functions of this system is the measurement of respiratory rhythm, which is based on the variations in the resistance of a knitted fabric made of electrically conductive strands, integrated into baby underwear. The research presented in this article was carried out in order to select the optimum type of stitch used for knitting. The tests were carried out on five samples made of different types of stitches. The resistance studies of individual samples were performed during their operation. The selection of suitable stitches for stability and reliability of measurements was made. In the second stage of the study, two samples selected on the basis of stage 1 were subjected to continuous cycles of 5 h. Based on this two-step analysis, a stitch selection was made.

Electromagnetic radiation can have a negative effect on electronic circuits, for example, by disrupting their work and communication. Therefore, there is a need to reduce or eliminate electromagnetic interference using shields. This paper focuses on using waste materials in the form of iron scale, which is easy and inexpensive to obtain for shielding. Iron scale is the result of gaseous or aqueous corrosion, due to which a superficial layer of metal oxides formed on the surface of heated metal objects as a result of their contact with air or water during an industrial process is developed. In this study, morphology, chemical, and phase composition measurements were carried out. The results show that all the iron-based materials investigated are mainly composed of iron oxides and pure iron. The polymer–iron composites with different quantitative and qualitative compositions were prepared to verify the shielding effectiveness. The electrical resistance, impact strength, and magnetic properties were measured, and dynamic mechanical thermal analysis and tensile strength tests were performed. The tests confirmed the suitability of iron scale for the construction of electromagnetic field shielding material. Iron scale is cheap and easy to obtain from iron-based waste materials. The developed composites are easy to form and use recycled material.

The textile sensors described in the paper are part of the textronic system developed to monitor vital functions of infants and small children - BabyTex. The system enables one to carry out remote monitoring of respiratory rhythm, moisture, body temperature and motoric activity of infants and young children using smart underwear. The article focused on the parameters and measurements results of the designed textronic sensors.

Wydawnictwo SIGMA-NOT wydaje czasopisma fachowe informuj?ce swoich czytelnik?w o najnowszych osi?gni?ciach naukowych i nowoczesnych rozwi?zaniach technicznych w Polsce i na ?wiecie, popularyzuje problemy techniczne oraz poszerza wiedz? i kultur? techniczn?.

The development of technology in the field of new textronic materials allows for their wider application in everyday use. Hence the authors' interest in the use of textiles with an electroconductive coating as screens of non-ionizing electromagnetic fields. Thanks to the use of textronic materials, it is possible to obtain a flexible cover with appropriate strength, elasticity and, above all, the required functionality, which is the elimination of undesirable interference and electromagnetic radiation. The work examined material properties of samples, shielding effectiveness and measurements of volume and surface resistance.

The research and analysis of the bactericidal properties of the spacer knitted fabric with the UV-C system are presented in this paper. The disintegration factor affecting the bacteria in the knitted fabric is the UV-C radiation in the range of 265–270 nm distributed via woven optical fibres. The way of integrating elements of the system generating the UV-C radiation in the structure of the spacer knitted fabric was designed, as well as various configurations of optical fibres arrangement, fibre density, number of radiation sources, and diode types were tested. The material was contaminated with selected microorganisms indicative of sanitary contamination and important in terms of nosocomial infections. The scope of the research included microbiological (quantitative and qualitative) analyses of selected taxonomic groups of microorganisms (mesophilic bacteria, fungi, actinomycetes) before and after the irradiation process. The analysis of the research results and the applied modification of the knitted fabric turned out to be effective in reducing the amount of potentially pathogenic microorganisms.