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Your search keyword '"Ewa Skrzetuska"' showing total 6 results
Start Over Author "Ewa Skrzetuska" Topic screen printing
6 results on '"Ewa Skrzetuska"'

1. Design and Analysis of Electrodes for Electrostimulation (TENS) Using the Technique of Film Printing and Embroidery in Textiles

Author

Ewa Skrzetuska, Daria Michalak, and Izabella Krucińska

Subjects
electrodes, carbon nanotubes, graphene, silver, screen printing, machine embroidery, Chemical technology, TP1-1185
Abstract

This article describes the development of transcutaneous nerve stimulating electrodes (TENS) by means of electrically conductive ink and conductive yarn. The scope of work covered a selection of three types of knitwear with a similar surface weight with different raw material composition. Stimulating electrodes were made by means of film printing and machine embroidery. The electrodes were verified after friction tests, washing, and mechanical deformation. Each process was followed by a check of the resistive properties and assessment of the sensations in order to evaluate their performance. Tests of the surface resistance of research materials confirmed the possibility of preparing textile electrodes for electrostimulation with the use of the film-printing technique and machine embroidery. Resistance of the electrodes made on all types of substrates ranged from approximately 1.00 × 10−2 Ω to around 2.00 × 102 Ω, while the electrodes are commercially available at the level of approximately 3.5 × 105 Ω. This paper underpins the validation of the conclusion that operational processes do not adversely affect the functioning of the developed textile electrodes.

Published
2021
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2. Investigation of the Impact of Environmental Parameters on Breath Frequency Measurement by a Textile Sensor

Author

Ewa Skrzetuska and Jarosław Wojciechowski

Subjects
sensors, nanomaterials functionalization, textile actuator, textronic, monitor, human body, carbon nanotubes, screen printing, Chemical technology, TP1-1185
Abstract

The aim of this work was to develop sensors that enable the monitoring of respiratory frequencies and will be competitive at a global level in replacing conventional electronic sensors based on rigid and uncomfortable materials. The preliminary work carried out showed the real possibility of creating flat fibrous products containing carbon nanotubes with sensory properties. Bearing in mind the production of a textile deformation sensor, textile materials with high elasticity and deformation reversibility were used in the preliminary studies. The authors assumed that it would be possible to conduct registration associated with the measurement of pneumography continuously in various atmospheric conditions and with varying intensification of human physical activity. The conducted experiment allows us to state that the resistance at the level of 10 kΩ is sufficient to collect results of breathing frequency at rest and after physical effort.

Published
2020
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3. Chemically Driven Printed Textile Sensors Based on Graphene and Carbon Nanotubes

Author

Ewa Skrzetuska, Michał Puchalski, and Izabella Krucińska

Subjects
graphene, carbon nanotubes, screen printing, textronics, Chemical technology, TP1-1185
Abstract

The unique properties of graphene, such as the high elasticity, mechanical strength, thermal conductivity, very high electrical conductivity and transparency, make them it an interesting material for stretchable electronic applications. In the work presented herein, the authors used graphene and carbon nanotubes to introduce chemical sensing properties into textile materials by means of a screen printing method. Carbon nanotubes and graphene pellets were dispersed in water and used as a printing paste in the screen printing process. Three printing paste compositions were prepared—0%, 1% and 3% graphene pellet content with a constant 3% carbon nanotube mass content. Commercially available materials were used in this process. As a substrate, a twill woven cotton fabric was utilized. It has been found that the addition of graphene to printing paste that contains carbon nanotubes significantly enhances the electrical conductivity and sensing properties of the final product.

Published
2014
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4. Creation and Analysis of a Respiratory Sensor Using the Screen-Printing Method and the Arduino Platform

Author

Ewa Skrzetuska and Jarosław Wojciechowski

Subjects
carbon nanotubes, printing composition, human body, screen printing, Biochemistry, textile actuator, Atomic and Molecular Physics, and Optics, Analytical Chemistry, textiles, textronic, monitor, microcontroller, Arduino, T-shirt, Electrical and Electronic Engineering, Instrumentation
Abstract

The aim of this paper is to present novel highly sensitive and stretchable strain sensors using data analysis to report on human live parameters using the Arduino embedded system as a proof of concept in developing new and innovative solutions for health care. The article introduces the solution of textile sensor origination with electrical resistance measurement using the mobile Arduino microcontroller in the designed/elaborated textile printed sensor. The textile sensor was developed by the screen printing technique based on the water dispersion of carbon nanotubes during printing composition. By stretching and squeezing the T-shirt during breathing, the electrical resistances of the printed sensor were changed. The measured resistance corresponded to the number of breaths of the person wearing the T-shirt. The microcontroller calculated the number of breaths as a number of electrical resistance peaks, which then led to monitoring human live parameters.

Published
2023
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5. The use of carbon nanotubes in textile printing

Author

Ewa Skrzetuska, Wiesława Urbaniak-Domagała, and Izabella Krucińska

Subjects
Materials science, Polymers and Plastics, General Chemistry, Carbon nanotube, Surfaces, Coatings and Films, law.invention, Polyester, Synthetic fiber, law, Screen printing, Materials Chemistry, Antistatic agent, Polymer blend, Composite material, Natural fiber, Antibacterial agent
Abstract

The characteristic properties of carbon nanotubes (CNTs), particularly their heat conduction, electrical conductivity, high modulus of elasticity, high strength, and resistance to chemicals, have resulted in widespread application of CNTs in nanotechnologies. In this study, CNTs were used to impart specific functionality to textiles by printing techniques. To this aim, modified commercial aqueous dispersions of multiwalled CNTs from Nanocyl® were used for preparing special compositions as paste for printing by conventional techniques (screen printing) and as inks for ink-jet printing to bestow the fabric antistatic and antibacterial properties. Taking into account the importance of the dispersion level of CNT in the printing composition from the point of view of antistatic properties, the quality of the CNT dispersion was assessed on the basis of particle size distribution by means of a DLS PSS Nicomp device. Printings were done on two types of woven fabrics: 100% cotton and 30/70% cotton/polyester blend. The CNTs used in printing were found to impart antistatic and antibacterial properties to the printed fabrics. These imparted properties were resistant to repeated washing. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

Published
2011
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6. Tisak grafena na tekstroničke uređaje

Author

Michal Puchalski, Ewa Skrzetuska, Zbigniew Draczynski, Izabella Krucinska, Ludwika Lipinska, Magdalena Aksienionek, Wlodzimierz Stupinski, Pawel Dabrowski, Zbigniew Sieradzki, Igor Wlasny, Maciej Rogala, Zbigniew Klusek, and Joanna Jagiello

Subjects
graphene, textronic, ink-jet printing, screen printing, grafen, tekstronika, tisak mlazom tinte, filmski tisak
Abstract

Grafen se dokazao kao izvrstan nanomaterijal za suvremene elektroničke namjene kao što su biosenzori, tranzistori ili grijači. Nastojanja su da se ovaj novi nanomaterijal upotrebljava za razvoj jedinstvenih tekstroničkih uređaja. Trenutno stanje znanosti o materijalima pokazuje mogućnosti dizajna pametnih tekstila s grafenom. Autori iznose rezultate primjene 2D ugljikove strukture u tekstroničkim uređajima. Primjena novorazvijenih tinti i pasta daju zanimljiva svojstva tekstilu kao što su električna vodljivost i osjetljivost na hlapljive organske spojeve., Graphene has been proved to be an excellent nanomaterial for modern electronic applications such as biosensors, transistors or heaters. The natural point of view is to use this new nanomaterial for the development of unique textronic devices. The current state of the art of the materials science shows design possibilities of the smart textiles with graphene. The authors show the results of implementation of 2D carbon structure into the textronic devices. The development inks and pastes give interesting properties of textile such as electro conductivity and sensitive to the volatile organic compounds.

Published
2016

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