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result(s) for
"T-shirt"
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Determination of some heavy metals and their health risk in T-shirts printed for a special program
2022
Heavy metals often are used in different textile processes, like dyeing and printing. When the toxic elements are present in more than recommended in textile materials they may impose potential risk to human health by absorption through the skin. In this study concentrations of some heavy metals (Co, Cu, Cr, Cd, and Pb) were analyzed in skin contact fading T-shirts printed for a special program at Mettu town using Atomic Absorption Spectroscopy with a microwave digestion method technique for sample preparation. High levels of Cu were found in black, green, blue, and red-colored T-shirts ranging from 26.726–179.315mg/kg. Cr exceeded the recommended limits in most samples of T-shirts and was mostly in yellow, black, and blue colors. Cd levels were found to be within normal ranges. However, all T-shirt samples had low levels of cobalt, ranging from 1.33±2.13 to3.94±0.21. Maximum lead concentrations were found to be 3.40 ± 0.19 mg/kg for red-colored samples and 2.71 ± 0.13 mg/kg for blue colored samples. The metal concentrations in the T-shirts investigated were also compared to the OEKO Tex standard 100 limits. In this investigation, the concentrations of Pb, Cu, and Cr in red and green colored T-shirt samples were above the OEKO Tex suggested standard value. Therefore a strict local and international regulation and measures need to be taken to avoid toxicity of the studied metals.
Journal Article
Hottest merch at RNC: Trump assassination-attempt T-shirts
2024
Beyond the branded mugs, ties, bibles and more, RNC attendees can now purchase T-shirts featuring former President Trump post-assassination attempt.
Streaming Video
T-Shirt as the Media of Learning the Nias Culture ( Study of Gamagama Nias T-Shirt)
2019
In this modern era, human endevour to make the innovation in many aspects of life. Gama-Gama is one of the brands of t-shirt that attempt to make innovation in order to introduce Nias culture. On that t-shirt printed vocabularies that uses terms in Nias language The purpose of this research is to describe how GamagamaNias t-shirt can be the media of learning Nias Culture. Through interview and documentation the researcher collecting the data. Base on analysing the data the result of the research that Gama-Gama is a good media of learning Nias culture especially for the millenial generation. Thus the function of t-shirt is not only for fashion but also the media of learning. The suggestion could be given is innovation should be a tool for introducing the culture. The researcher hope there is another innovation way for introducing the culture.
Journal Article
Uncertainty analysis of physical-based carbon accounting in cotton T-shirt manufacturing
2026
The textile sector contributes significantly to global greenhouse gas emissions, yet product-level carbon accounting in this industry remains constrained by data gaps and methodological uncertainty. This study quantifies the uncertainty embedded in process-based carbon accounting for the cradle-to-gate production of a cotton T-shirt. We evaluated secondary activity data and emission factors using a pedigree matrix across five data quality indicators: precision, completeness, and temporal, geographical, and technological representativeness. The total cradle-to-gate carbon footprint was
per T-shirt, with an overall uncertainty of ±13.81 %. Fabric production was the largest source of emissions and uncertainty, contributing over 60 % of total emissions and nearly 70 % of total uncertainty, driven by energy-intensive processes such as weaving, dyeing, and sanforising. Yarn spinning was a secondary hotspot, while the sewing stage had comparatively minor impacts. The results show significant variation in data reliability across production stages and highlight the need for improved primary data, updated emission factors, and harmonised databases to strengthen the robustness and comparability of process-based carbon accounting in the textile sector.
Journal Article
Decorative 3D printing on textiles using elastomer TPU filament under different printing conditions
by
Spahiu, Tatjana
,
Kechagias, John D.
,
Chaidas, Dimitrios
in
3-D printers
,
Cotton
,
Cotton fabrics
2024
Purpose
New sustainable approaches to fashion products are needed due to the demand for customization, better quality and cost reduction. Therefore, the decoration of fashion products using 3D printing technology can create a new direction for manufacturing science.
Design/methodology/approach
This study aims to optimize the 3D printing of soft TPU material on textiles. In the past decade, trials of using 3D printing in tailored fashion products have been done due to the 3D printing simplicity, low cost of materials and time reduction. Therefore, soft polymers can be multi-layer stepped-deposited smoothly with the fused filament fabrication process.
Findings
Even though there have been many attempts in the literature to 3D print multilayer polymer filaments directly onto textile fabrics by special-purpose 3D printers, only a few reports of decorative or personalized artefact 3D printing using open-platform filament material extrusion 3D printers. Printing speed, nozzle Z distance, textile fabric thickness and deposited strand height significantly affect 3D printing on textile fabric.
Originality/value
This study investigates the potential of 3D printing on textiles by changing the printing speed, nozzle hot end, Z distance and layer thickness. It presents two critical case studies of 3D printing soft thermoplastic polyurethane material on a cotton T-shirt and on a tulle textile to reveal the 3D printing on textile fabrics manufacturing challenges.
Journal Article
Feasibility of a T-Shirt-Type Wearable Electrocardiography Monitor for Detection of Covert Atrial Fibrillation in Young Healthy Adults
by
Hasumi, Eriko
,
Toyooka, Tsuguyoshi
,
Ohe, Kazuhiko
in
692/4019/2773
,
692/700/139/1449
,
Atrial Fibrillation - diagnosis
2019
Covert atrial fibrillation (AF) accounts for cryptogenic stroke aetiology in elderly patients and in younger populations. However, asymptomatic AF is difficult to diagnose based on a short electrocardiography (ECG) recording. We evaluated the feasibility of a self-applied continuous ECG monitoring device that can record automatically, easily, and noninvasively in a younger population. We investigated community screening for asymptomatic AF using a wireless single-lead ECG with an electrode embedded in a T-shirt. One hundred men with a CHADS2 score ≥1 who were free from AF and <65 years of age were enrolled. We instructed the participants to wear ECG monitoring devices for at least 4 days/week over 2 months. The proportion of participants with newly detected AF (NDAF) and the monitoring time were evaluated. The mean CHADS2 score was 1.43 ± 0.62. The mean patient age was 52.5 ± 5.4 years. The mean monitoring time was 222 ± 199 hours. NDAF continuing for >30 seconds was detected in 10 participants (10.0%). AF continuing for >6 minutes was detected in 2 participants (2.0%). The T-shirt-type wearable ECG monitoring system was suitable for continuous, daily long-term use among young people with high physical activity, and it had the distinct capability of identifying covert AF.
Journal Article
Higher Education Students' Perceptions of Psychological Aspects Following the Creation of T-Shirt Slogans
2026
It has long been observed that pupils who speak Spanish feel more at ease expressing their thoughts and emotions in a language other than their native tongue. Following their completion of a project in which slogans were created for t-shirts, 142 students from a Peruvian higher education institution provided their opinions for the current study. To achieve this, the students completed a survey that employed a structural equation model to quantify the impact of the latent variables Autonomous Learning (AL), Self-Efficacy (SE), Technology (T), and English Competencies (EC) on Psychological Aspects (PA). One of the most noteworthy results was that students' PA may be favorably and considerably influenced by SE and EC (0.60 and 0.73, respectively). In contrast, the other two variables have either a positive but insignificant impact (T: 0.16) or an inverse influence (AL: -0.45). In terms of the qualitative component, it emphasizes the possibility of conveying sentiments and emotions in the finished production, as well as the favorable perceptions of improved productive English language proficiency. Learning the grammar and syntax of a language that is entirely different from Spanish, as well as the potential time required to become proficient in it, presents one of the challenges faced by the pupils.
Journal Article
Sensorized T-Shirt with Intarsia-Knitted Conductive Textile Integrated Interconnections: Performance Assessment of Cardiac Measurements during Daily Living Activities
by
Ramos, Alberto
,
Hafid, Abdelakram
,
Papachristou, Panagiotis
in
activities of daily living
,
Analysis
,
Electrocardiogram
2023
The development of smart wearable solutions for monitoring daily life health status is increasingly popular, with chest straps and wristbands being predominant. This study introduces a novel sensorized T-shirt design with textile electrodes connected via a knitting technique to a Movesense device. We aimed to investigate the impact of stationary and movement actions on electrocardiography (ECG) and heart rate (HR) measurements using our sensorized T-shirt. Various activities of daily living (ADLs), including sitting, standing, walking, and mopping, were evaluated by comparing our T-shirt with a commercial chest strap. Our findings demonstrate measurement equivalence across ADLs, regardless of the sensing approach. By comparing ECG and HR measurements, we gained valuable insights into the influence of physical activity on sensorized T-shirt development for monitoring. Notably, the ECG signals exhibited remarkable similarity between our sensorized T-shirt and the chest strap, with closely aligned HR distributions during both stationary and movement actions. The average mean absolute percentage error was below 3%, affirming the agreement between the two solutions. These findings underscore the robustness and accuracy of our sensorized T-shirt in monitoring ECG and HR during diverse ADLs, emphasizing the significance of considering physical activity in cardiovascular monitoring research and the development of personal health applications.
Journal Article
Quantification of different microplastic fibres discharged from textiles in machine wash and tumble drying
by
Sillanpää, Markus
,
Kärkkäinen, Niina
in
Aquatic Pollution
,
Atmospheric Protection/Air Quality Control/Air Pollution
,
Cloth
2021
Microplastic fibres released in synthetic cloth washing have been shown to be a source of microplastics into the environment. The annual emission of polyester fibres from household washing machines has earlier been estimated to be 150,000 kg in a country with a population of 5.5 × 10
6
(Finland). The objectives of this study were (1) to quantify the emissions of synthetic textile fibres discharged from five sequential machine washes (fibre number and length) and tumble dryings (fibre mass) and (2) to determine the collection efficiency of two commercial fibre traps. The synthetic fabrics were five types of polyester textiles, one polyamide and one polyacryl. The number of fibres released from the test fabrics in the first wash varied in the range from 1.0 × 10
5
to 6.3 × 10
6
kg
−1
. The fibre lengths showed that the fleece fabrics released, on average, longer fibres than the technical sports t-shirts. The mass of fibres ranged from 10 to 1700 mg/kg w/w in the first drying. Fibre emissions showed a decreasing trend both in sequential washes and dryings. The ratio of the fibre emissions in machine wash to tumble drying varied between the fabrics: the ratio was larger than one to polyester and polyamide technical t-shirts whereas it was much lower to the other tested textiles. GuppyFriend washing bag and Cora Ball trapped 39% and 10% of the polyester fibres discharged in washings, respectively.
Journal Article
Creation and Analysis of a Respiratory Sensor Using the Screen-Printing Method and the Arduino Platform
2023
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.
Journal Article