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1 – 10 of 104Pamela Miśkiewicz, Iwona Frydrych and Wojciech Pawlak
The purpose of this paper is to present the influence of modifying the fabric surface made from basalt fibers by the magnetron sputtering of chromium and aluminum layers on its…
Abstract
Purpose
The purpose of this paper is to present the influence of modifying the fabric surface made from basalt fibers by the magnetron sputtering of chromium and aluminum layers on its resistance to contact heat and comfort properties.
Design/methodology/approach
In order to modify the surface of basalt fabric, the process of physical deposition from the gas phase was used. It relies on creating a coating on a selected substrate by applying physical atoms, molecules or ions of specific chemical compounds. The trial of modification was carried out using the magnetron sputtering method due to the material versatility, application flexibility and ability to apply layers on substrates of various sizes and properties.
Findings
The findings obtained regarding the heat resistance to contact heat and thermal insulation (comfort) properties show different values depending on the type of metal deposited and the thickness of coating layer. It was found that the modification of basalt fabric surface at the micrometer level changes the tested parameters.
Research limitations/implications
This paper presents the results of resistance to contact heat and thermal insulation properties only for the twill fabric made of basalt fiber. The surface modification of fabric was carried out using the chromium and aluminum of two values of layer thickness (1 and 5 µm).
Originality/value
So far, no tests have been carried out to modify the surface of fabric made from basalt fiber yarns using the magnetron sputtering method. In addition, it has not been studied, how the modification of fabric affects its resistance to contact heat and thermophysiological properties.
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Examines the twelfth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects…
Abstract
Examines the twelfth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.
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Examines the thirteenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects…
Abstract
Examines the thirteenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.
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R. Chollakup, A. Sinoimeri, J-F. Osselin, R. Frydrych and J-Y. Drean
The microspinning technology has generally been used for cotton in the case of small scale spinning test methods (50 gram fibres). One type of silk fibre waste -pierced…
Abstract
The microspinning technology has generally been used for cotton in the case of small scale spinning test methods (50 gram fibres). One type of silk fibre waste -pierced cocoonprepared previously as short silk fibre with cut length of 35 mm is blended with cotton fibre to obtain further data concerning two blending techniques in this microspinning, and to compare pure and blended yarns. The intimate (before carding and drawframe blending as well as the roll settings in the drawing system are being examined. The silk content was changed at 0/100, 25/75 and 50/50 ratio for a yarn count of 30 tex. The physical properties, the irregularity and the fibre arrangement as terms of the Index of Blending Irregularity and the Migration Indices of the blended yarns have been studied. In addition, the effects of the blending techniques as well as those of the silk content have been brought to the fore.
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A. Ayed Amara, J.Y. Drean, M. Nardin and et R. Frydrych
People involved in the cotton industry, from growers to spinners, have been concerned about the problem of stickiness encountered during cotton processing from fibres to yarn…
Abstract
People involved in the cotton industry, from growers to spinners, have been concerned about the problem of stickiness encountered during cotton processing from fibres to yarn. Many methods have been successfully developed to identify and measure stickiness and also to reduce the effect of these contaminations. Yet due to the poor fundamental scientific knowledge regarding the mechanisms of sugar adhesion on fibres, the major part of these methods is empirically based. Today, gaining knowledge about stickiness seems impossible without the help of a fundamental study on the accurate composition of honeydew and on the mechanisms of honeydew adhesion. This paper introduces a new quantitative analysis method for honeydew adhesion behaviour measurement. Adhesion measurement has been carried out on both individual sugar and sugar mixture and it reveals a strong influence of moisture content on adhesion energy and a weak influence of the type of metallic surface on adhesion energy.
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Prapti Behera, Sanjukta Aravind and Balaji Seetharaman
Bales of cotton run through the gins and textile mill instruments, stick to them and make it cumbersome for the ginning mill workers. This is so because more time and money have…
Abstract
Purpose
Bales of cotton run through the gins and textile mill instruments, stick to them and make it cumbersome for the ginning mill workers. This is so because more time and money have to be invested in cleaning these instruments. The stickiness of cotton causes health hazards to the workers, decreases the yarn quality and economic loss to the textile industry. The effect of cotton stickiness on textile ginning, various methods for cotton stickiness detection and the steps for reduction are discussed.
Design/methodology/approach
The different methods that are available for detecting and measuring cotton stickiness are described. The sugars that cause stickiness are either of plant origin (physiological sugars) or from the feeding insects (entomological origin). The methods for stickiness detection and reduction are discussed under physical, chemical and biological categories.
Findings
This review suggests possible ways to mitigate cotton stickiness.
Originality/value
One of the major issues of the textile industry is honeydew-contaminated cotton stickiness. However, there are few papers on detection methods for analyzing honeydew cotton stickiness along with the approaches to reduce stickiness. This paper summarizes different methods along with a study for detection as well as reduction of cotton stickiness.
Rafal Hrynyk and Iwona Frydrych
– The purpose of this paper is to check an applicability of aluminized basalt fabrics for production of gloves protecting simultaneously against thermal and mechanical factors.
Abstract
Purpose
The purpose of this paper is to check an applicability of aluminized basalt fabrics for production of gloves protecting simultaneously against thermal and mechanical factors.
Design/methodology/approach
Six variants of protective gloves were manufactured using two different glove constructions: more simple and cheaper with the anatomical thumb arrangement (model A), and more ergonomic one with so called “distance gussets” (model B). Aluminized basalt fabrics were contained in the back side of all variants and in only one variant of palm side. Then the protective properties against thermal and mechanical factors were measured according to the up-to-date standards.
Findings
The fulfillment of contact heat requirement was achieved for all glove variants at 100°C. Application of aluminized basalt fabrics in the glove back side allowed obtaining the fourth performance level in the case of resistance to small metal splashes and assuring the highest protection against the radiant heat and small metal splashes. Fulfillment of standard requirements for all examined mechanical parameters was achieved and significantly higher values than reqired for the highest performance level were registered.
Research limitations/implications
The further research including upscalling strategy as well as industrial conditions requirements should be taking into account for basalt textiles development. Moreover functionalization of basalt yarns and fabrics seems to be promising feature.
Practical implications
The preliminary utility trials were done and registered results are very promising, shows that this kind of gloves will be cheaper than produced so far and could be used in the glass, welder companies.
Social implications
The basalt textiles applied for protective gloves or other personal protective equipment can ensure safety at work for end users operating in mechanical and thermal risk scenarios.
Originality/value
Up till now the basalt fabrics have not been recognized as a material for the personal protective equipment, they were used mostly for technical purposes.
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Saloni Purandare and Chunhui Xiang
Firefighter Personal Protective Equipment (PPE) is the only barrier between the firefighter and hazardous environment. Gloves are a crucial component of the multi-component PPE…
Abstract
Purpose
Firefighter Personal Protective Equipment (PPE) is the only barrier between the firefighter and hazardous environment. Gloves are a crucial component of the multi-component PPE. Over time the gloves have reduced the intensity of hand injuries, yet further improvement in terms of material selection and glove design is required to strike the balance between protection and comfort. Focusing on the material aspect, the purpose of this study is to present literature analysis on material selection and testing for firefighter gloves.
Design/methodology/approach
The study conducted a literature analysis on material selection and characterization of firefighter PPE. The review summarizes and evaluates past work addressing the characterization of firefighter gloves in accordance with NFPA 1971 requirements and points out found research gaps to aid with foundation of future research.
Findings
The study summarizes several research works to inform readers about the material selection and characterization of firefighter gloves. Based on the analyzed literature, the study resulted in material specification sheets for firefighter gloves. The developed material specification sheets provide information in terms of crucial material properties to be incorporated for accurate functioning of firefighter gloves, testing methods to validate those material properties and materials from analyzed literature exhibiting desired properties.
Originality/value
With large research addressing firefighter PPE, only limited studies focus specifically on gloves. Thus, this study provides a literature analysis covering material selection and testing for gloves. A consolidated firefighter gloves material specification document, which does not appear to be available in the literature, will provide a foundation for the development and characterization of firefighter gloves to better serve the functions along with ensuring user comfort.
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Denis Frydrych, Adam J. Bock and Tony Kinder
This study examines how narratives and legitimacy formation affect crowdfunding capital assembly from distributed, heterogeneous investors.
Abstract
Purpose
This study examines how narratives and legitimacy formation affect crowdfunding capital assembly from distributed, heterogeneous investors.
Methodology/approach
The study explores a dataset of 80,181 projects from Kickstarter, a rewards-based crowdfunding platform, between 2009 and 2013. We explore the link between project-related variables, legitimacy formation and outcomes.
Findings
Entrepreneurs design narratives and create project legitimacy by exploiting crowdfunding platform-specific features. First, lower funding targets and shorter campaign durations confer positive project legitimacy. Second, entrepreneurs exploit reward-levels as narrative tools that encourage funders to engage with the project. Third, visual pitches transmit a broader sociocultural narrative, leveraging emotional rather than financial reasoning. We also note certain gender effects.
Research implications
Crowdfunding platforms allow entrepreneurs to pitch business ideas to a broad online audience. We show that project legitimacy, including both structural and narrative elements, is linked to crowdfunding outcomes. In particular, legitimacy is co-created through the generation of a persuasive narrative linking the entrepreneur and investor cohort.
Practical implications
Entrepreneurs use crowdfunding platforms to generate a coherent narrative around unfamiliar business models. Generic platform tools may be set and manipulated in online crowdfunding pitches to support project legitimacy. Ultimately, these are less important than establishing an affinity-based narrative that engages and exploits investor participation. Successful crowdfunding pitches co-author the project story with investors.
Originality/value
Crowdfunding has been traditionally understood as simply an online-mediated venture resource assembly tool. A narrative framework highlights the critical role of legitimacy formation in a disintermediated investment system.
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Examines the sixteenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects…
Abstract
Examines the sixteenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.
Details