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Статті в журналах з теми "Functional textile"
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Tadesse, Melkie Getnet, Carmen Loghin, Ionuț Dulgheriu, and Emil Loghin. "Comfort Evaluation of Wearable Functional Textiles." Materials 14, no. 21 (October 28, 2021): 6466. http://dx.doi.org/10.3390/ma14216466.
Повний текст джерелаАнотація:
Wearable E-textile systems should be comfortable so that highest efficiency of their functionality can be achieved. The development of electronic textiles (functional textiles) as a wearable technology for various applications has intensified the use of flexible wearable functional textiles instead of wearable electronics. However, the wearable functional textiles still bring comfort complications during wear. The purpose of this review paper is to sightsee and recap recent developments in the field of functional textile comfort evaluation systems. For textile-based materials which have close contact to the skin, clothing comfort is a fundamental necessity. In this paper, the effects of functional finishing on the comfort of the textile material were reviewed. A brief review of clothing comfort evaluations for textile fabrics based on subjective and objective techniques was conducted. The reasons behind the necessity for sensory evaluation for smart and functional clothing have been presented. The existing works of literature on comfort evaluation techniques applied to functional fabrics have been reviewed. Statistical and soft computing/artificial intelligence presentations from selected fabric comfort studies were also reviewed. Challenges of smart textiles and its future highlighted. Some experimental results were presented to support the review. From the aforementioned reviews, it is noted that the electronics clothing comfort evaluation of smart/functional fabrics needs more focus.
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Kiekens, Paul, Els Van der Burght, Erich Kny, Tamer Uyar, and Rimvydas Milašius. "Functional Textiles – From Research and Development to Innovations and Industrial Uptake." Autex Research Journal 14, no. 4 (December 1, 2014): 219–25. http://dx.doi.org/10.2478/aut-2014-0031.
Повний текст джерелаАнотація:
Abstract Functional textiles are one of the most important fields in textile industry and textile materials science. They include breathable, heat and cold-resistant materials, ultra-strong fabrics (e.g. as reinforcement for composites), new flameretardant fabrics (e.g. intumescent materials), optimisation of textile fabrics for acoustic properties, etc. Functional textiles became more and more important materials for various applications and interest in them grew year by year; and more and more conferences are focused on functional textiles, as well as the events which are not only textile conferences but encompass various fields of Material Science. This paper presents a short overview about the European Materials Research Society 2014 Fall meeting conference Symposium M “Functional textiles - from research and development to innovations and industrial uptake” and the projects which participated as symposium co-organisers: the European Coordination Action 2BFUNTEX funded by the EC 7th Framework Programme NMP, the COST Action MP1105 on “Sustainable flame retardancy for textiles and related materials based on nanoparticles substituting conventional chemicals (FLARETEX)” and the COST Action MP1206 on “Electrospun Nano-fibres for bio inspired composite materials and innovative industrial applications”.
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Xiao, Ya-Qian, and Chi-Wai Kan. "Review on the Development and Application of Directional Water Transport Textile Materials." Coatings 12, no. 3 (February 23, 2022): 301. http://dx.doi.org/10.3390/coatings12030301.
Повний текст джерелаАнотація:
Moisture (sweat) management in textile products is crucial to regulate human thermo-physiological comfort. Traditional hydrophilic textiles, such as cotton, can absorb sweat, but they retain it, leading to undesired wet adhesion sensation and even excessive cooling. To address such issues, the development of functional textiles with directional water transport (DWT) has garnered great deal of interest. DWT textile materials can realize directional water transport and prevent water penetration in the reverse direction, which is a great application for sweat release in daily life. In this review article, the mechanism of directional water transport is analyzed. Then, three key methods to achieve DWT performance are reviewed, including the design of the fabric structure, surface modification and electrospinning. In addition, the applications of DWT textile materials in functional clothing, electronic textiles, and wound dressing are introduced. Finally, the challenges and future development trends of DWT textile materials in the textile field are discussed.
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Shiomi, Hidekazu, and Hideyuki Yamada. "FRAICHIR, Functional Textile." FIBER 57, no. 9 (2001): P.254—P.255. http://dx.doi.org/10.2115/fiber.57.p_254.
Повний текст джерела
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Kitagawa, Y. "Functional Textile Products." Sen'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan) 47, no. 4 (1994): P161—P166. http://dx.doi.org/10.4188/transjtmsj.47.4_p161.
Повний текст джерела
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Vashist, Paribha, Santanu Basak, and Wazed Ali. "Bark Extracts as Multifunctional Finishing Agents for Technical Textiles: A Scientific Review." AATCC Journal of Research 8, no. 2 (March 1, 2021): 26–37. http://dx.doi.org/10.14504/ajr.8.2.4.
Повний текст джерелаАнотація:
Bark extracts are important sources of natural dyes. They possess many functional properties of potential interest to the textile industry. Currently, textiles with eco-friendly functional finishing are increasingly sought for in medical and protective clothing due to stringent environmental laws and the associated toxicity of synthetic agents. In view of this, recent studies on bark extracts for multi-functional finishing of textiles, particularly for antimicrobial and UV protective finishing, is reviewed. Bark extracts from various trees are able to effectively impart antimicrobial resistance and UV protection properties to treated fabrics; however, their long-term sustenance and strength depend on a multitude of factors. However, the application of bark extracts on several types of textile fabrics have no significant impact on textile quality.
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Verbič, Anja, Marija Gorjanc, and Barbara Simončič. "Zinc Oxide for Functional Textile Coatings: Recent Advances." Coatings 9, no. 9 (August 27, 2019): 550. http://dx.doi.org/10.3390/coatings9090550.
Повний текст джерелаАнотація:
The use of ZnO for the functionalization of textile substrates is growing rapidly, since it can provide unique multifunctional properties, such as photocatalytic self-cleaning, antimicrobial activity, UV protection, flame retardancy, thermal insulation and moisture management, hydrophobicity, and electrical conductivity. This paper aims to review the recent progress in the fabrication of ZnO-functionalized textiles, with an emphasis on understanding the specificity and mechanisms of ZnO action that impart individual properties to the textile fibers. The most common synthesis and application processes of ZnO to textile substrates are summarized. The influence of ZnO concentration, particle size and shape on ZnO functionality is presented. The importance of doping and coupling procedures to enhance ZnO performance is highlighted. The need to use binding and seeding agents to increase the durability of ZnO coatings is expressed. In addition to functional properties, the cytotoxicity of ZnO coatings is also discussed. Future directions in the use of ZnO for textile functionalization are identified as well.
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Boh Podgornik, Bojana, Stipana Šandrić, and Mateja Kert. "Microencapsulation for Functional Textile Coatings with Emphasis on Biodegradability—A Systematic Review." Coatings 11, no. 11 (November 9, 2021): 1371. http://dx.doi.org/10.3390/coatings11111371.
Повний текст джерелаАнотація:
The review provides an overview of research findings on microencapsulation for functional textile coatings. Methods for the preparation of microcapsules in textiles include in situ and interfacial polymerization, simple and complex coacervation, molecular inclusion and solvent evaporation from emulsions. Binders play a crucial role in coating formulations. Acrylic and polyurethane binders are commonly used in textile finishing, while organic acids and catalysts can be used for chemical grafting as crosslinkers between microcapsules and cotton fibres. Most of the conventional coating processes can be used for microcapsule-containing coatings, provided that the properties of the microcapsules are appropriate. There are standardised test methods available to evaluate the characteristics and washfastness of coated textiles. Among the functional textiles, the field of environmentally friendly biodegradable textiles with microcapsules is still at an early stage of development. So far, some physicochemical and physical microencapsulation methods using natural polymers or biodegradable synthetic polymers have been applied to produce environmentally friendly antimicrobial, anti-inflammatory or fragranced textiles. Standardised test methods for evaluating the biodegradability of textile materials are available. The stability of biodegradable microcapsules and the durability of coatings during the use and care of textiles still present several challenges that offer many opportunities for further research.
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Chruściel, Jerzy J. "Modifications of Textile Materials with Functional Silanes, Liquid Silicone Softeners, and Silicone Rubbers—A Review." Polymers 14, no. 20 (October 17, 2022): 4382. http://dx.doi.org/10.3390/polym14204382.
Повний текст джерелаАнотація:
General information concerning different kinds of chemical additives used in the textile industry has been described in this paper. The properties and applications of organofunctional silanes and polysiloxanes (silicones) for chemical and physical modifications of textile materials have been reviewed, with a focus on silicone softeners, silane, and silicones-based superhydrophobic finishes and coatings on textiles composed of silicone elastomers and rubbers. The properties of textile materials modified with silanes and silicones and their practical and potential applications, mainly in the textile industry, have been discussed.
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Park, Sohyun, Jooyoun Kim, and Chung Hee Park. "Superhydrophobic Textiles: Review of Theoretical Definitions, Fabrication and Functional Evaluation." Journal of Engineered Fibers and Fabrics 10, no. 4 (December 2015): 155892501501000. http://dx.doi.org/10.1177/155892501501000401.
Повний текст джерелаАнотація:
Engineering of superhydrophobic textile surfaces has gained significant scientific and industrial interest for its potential applications in outdoor wear and protective textiles, resulting in many publications especially on theoretical models and fabrication methods. In this review, progress in theoretical definitions to explain the wetting behavior and realization techniques for superhydrophobic textile surfaces is discussed. Firstly, theoretical models from Young, Wenzel, and Cassie-Baxter to the more recent re-entrant angle model are overviewed to understand the design strategy for superhydrophobic surfaces. Secondly, major surface manipulation techniques to produce superhydrophobic textiles were reviewed for: modification of surface energy, addition of surface roughness by depositing or growing nanoparticles either in spherical form or in high aspect ratio, etching by plasma or caustic chemicals. Particular attention is paid to evaluation methods to measure the level of hydrophobicity for superhydrophobic textile surfaces, as a limitation of static water contact angle (WCA) on differentiating superhydrophobic surfaces has been reported elsewhere. The challenges in application of superhydrophobic textiles to clothing materials in terms of comfort properties and durability are discussed with the suggestion of further research opportunities to expand the application.
Дисертації з теми "Functional textile"
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ATAPHOL, SUJIRAPINYOKUL. "Texniture, a freestanding functional textile object." Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20310.
Повний текст джерелаАнотація:
The purpose of this thesis is to explore the possibilities to create freestanding functional textile object that involves thepotential of traditional textile technique for creating three-dimensional textile structures. These three-dimensional textilestructures are used to generate the style of freestanding functional textile object and to create a product for the public room.The subculture and techniques involved in Thai textile techniques are the inspirations throughout this project. Forexample, sitting on the floor is prominent in this subculture and is, therefore; an initiation of the furniture development in thisproject. Meanwhile, Scandinavian design also influences the aesthetic and finds out the simple solution with its simplicityand functionalism. Nature is also a powerful source of inspiration in creating these three-dimensional knitted textiles.These factors influence the method used to explore techniques, colours and style. Moreover, sociology is considered to guidethe design process and to determine the style of freestanding textile object, for instance; the relationships among people.“Texniture” is a name given to the freestanding functional textile object and is a kind of the furniture created in this project. The resultshows how three-dimensional textiles can be manipulated in space, and aims to give audiences a new understanding of textiles.Texniture 1Program: Konstnärligt masterprogram i mode- och textildesign
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Mittal, Khushboo Surender. "Development of Dual Functional Textile Materials Using Atmospheric Plasma Treatments." NCSU, 2009. http://www.lib.ncsu.edu/theses/available/etd-04092009-231813/.
Повний текст джерелаАнотація:
Glow discharges and low temperature plasmas and their applications have increasingly entered various areas of industrial applications. The textile industry is a developing area for application of atmospheric plasma techniques with significant growth potential. Technological advances made possible by plasma processes can reduce the costs for production by reduction in process times, improve the quality of product, generate products with new surface or bulk properties, and contribute to an environmentally sustainable work environment. A novel dual functional textile material was developed which possesses co-existing hydrophobicity and hydrophilicity on opposite faces utilizing atmospheric pressure plasma. One side of the substrate repels water whereas the other side absorbs water. The sequence and chemistry of the plasma aided side specific treatment of poly (ethylene terephthalate)/ polyurethane blend knitted fabric and cellulose with fluorocompound namely 1, 1, 2, 2- tetrahydroperfluorodecyl acrylate (70- 90%) and 1, 1, 2, 2- tetrahydroperfluorododecyl acrylate (10- 30%) was demonstrated to obtain the dual functionality. Effect of process and device parameters such as variation of (1) flow rate of monomer, (2) flow rate of helium and (3) flow rate of argon, (4) RF power, (5) time of plasma exposure to the fabric, (6) gap between electrodes, (7) prewashing the material before treatments and (8) preliminary plasma treatment on the fabric performance was also studied in this research.
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Rothman, Maria. "The needle has a point, stitch has a function : Exploring the embroidered stitch in a functional context." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-288.
Повний текст джерелаАнотація:
This project within the textile design field explores the textile technique embroidery. By using design methods based on words and actions the technique was used in another angle approach that allowed the stitches to be used in a more functional context. This approach differs from how embroidery is traditionally looked upon, an added decorative surface to an already functional object. Embroidery has been explored in a way to see if the technique could be used as something more than just an added surface and if that added surface could be manipulated so that the stitch has both decorative and functional aspects. Stitches has been developed, discovered and realised that they can add density, stability, assembly and form to a material. This has resulted in an alternative way of using embroidery that puts the stitch in the position of being vital to both the expression and function of the object.
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Gismera, García Isaac. "System implementation of functional characterization of textiles electrodes for ECG measurements Software & Hardware components integration." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20103.
Повний текст джерелаАнотація:
The development in textile technology has led to electrodes and wearable measuringsystems. For the implementation of wearable systems is necessary to characterize properly theelectrodes and its influence in generating measurements. The validation of the performance oftextiles electrodes must be made with real ECG measurements.To obtain this ECG with textiles electrodes, a system must be implemented. This systemshould integrate an ECG amplifier, an USB DAQ system, the obtained data is received by aLabview application which stored this data in an ASCII text file. This text file is used tosubsequent study in a power analytical application, for example, Matlab.
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Vílchez, Maldonado Silvia. "Textiles funcionales obtenidos a partir de la incorporación de nanopartículas poliméricas." Doctoral thesis, Universitat de Barcelona, 2014. http://hdl.handle.net/10803/283167.
Повний текст джерелаАнотація:
El objetivo principal de la presente tesis es el diseño de nanopartículas de etilcelulosa para su utilización como vehículos de principios activos o sustancias lipofílicas y su deposición sobre un tejido, con la finalidad de obtener textiles funcionales. Para ello, se seleccionó como sustancia lipofílica modelo un filtro solar orgánico y como sustrato textil tejido de algodón. Debido a las características de la sustancia lipofílica seleccionada, el objetivo final de este trabajo es la obtención de tejido de algodón con propiedades protectoras frente a la radiación ultravioleta mediante la aplicación de nanopartículas poliméricas funcionales de etilcelulosa, preparadas por el método de evaporación del solvente a partir de nano-emulsiones aceite en agua (O/W).
Por consiguiente, este estudio engloba el diseño de nanomateriales, su aplicación al tejido y estudio de la interacción entre las nanopartículas y el sustrato textil, y la evaluación de las propiedades finales de los tejidos tratados con nanopartículas.
Las principales etapas de esta tesis son las siguientes:
- Obtención de nanopartículas de etilcelulosa a partir de nano-emulsiones aceite en agua (O/W) utilizadas como plantilla
o Estudio de la formación y caracterización de nano-emulsiones
o Obtención de nanopartículas a partir de las nano-emulsiones
seleccionadas -Aplicación de las nanopartículas sobre el tejido de algodón -Determinación de las propiedades del tejido tratado con nanopartículas
Las investigaciones desarrolladas han permitido alcanzar las siguientes conclusiones principales:
- Las nano-emulsiones estudiadas presentan suficiente estabilidad a 25ºC para ser utilizadas como plantilla para la obtención de nanopartículas poliméricas de etilcelulosa de tamaño <100 nm mediante el método de evaporación del solvente.
- La determinación indirecta de la concentración de filtro solar en las nanopartículas por HPLC ha permitido concluir que el proceso de evaporación del solvente no induce la difusión del filtro solar hacia la fase continua del sistema, obteniendo un alto rendimiento de encapsulación (>95%).
- La incorporación del agente reticulante Desmodur N100 en la fase oleosa de la nano-emulsión permite la obtención de nanopartículas insolubles en solventes orgánicos tales como etanol. Ello se ha atribuido a la reticulación de las cadenas de etilcelulosa.
- La caracterización de los tejidos tratados con nanopartículas puso de manifiesto que los métodos convencionales de acabado del tejido “impregnación del tejido-paso por el foulard-secado” son adecuados para la incorporación de nanopartículas en una proporción suficiente como para otorgar funcionalidad de protección UV al tejido de algodón.
- A partir de los resultados obtenidos se dedujo que en el mecanismo de anclaje de las nanopartículas en el tejido de algodón probablemente predomina la penetración de cadenas de celulosa (que se encuentran por encima de su Tg) en las cadenas poliméricas que forman las nanopartículas, formando un entrelazado que aumenta la resistencia de las nanopartículas frente a los procesos de lavado.
- La evaluación de las propiedades de protección frente a la radiación UV de los tejidos tratados indica que las diversas modificaciones realizadas en el proceso de deposición de las nanopartículas sobre el tejido de algodón han permitido mejorar las propiedades de protección UV de los tejidos tratados, llegando a obtener textiles con una capacidad de protección excelente (UPF=50+).
- Las medidas de transmitancia de los tejidos después de los lavados y la evaluación del detergente empleado pusieron de manifiesto que la capacidad de protección frente a la radiación UV resulta de una contribución del filtro solar de las nanopartículas que resisten después de los lavados (absorción en el intervalo UVB), y el agente blanqueante del detergente depositado en los lavados (absorción en el intervalo UVA).The main objective of this thesis is the design of ethylcellulose nanoparticles for use as vehicles of lipophilic active substances and their deposition on fabric, to obtain functional textiles. For this purpose, it was selected as a model substance a lipophilic organic sunscreen and cotton fabric as textile. Due to the characteristics of the selected lipophilic substance, the final goal is to obtain UV protective cotton fabric. The main stages of this thesis are: - The preparation of ethylcellulose (EC) nanoparticles loaded with a sunscreen from oil in water nano-emulsions used as templates by the solvent evaporation method. - The application of EC nanoparticles on cotton fabric - The determination of the properties of the textile treated with the nanoparticles Following, the main conclusions of this work are described: - Nano-emulsions studied show sufficient stability to be used as template for the preparation of EC nanoparticles using the solvent evaporation method. - The determination of the concentration of sunscreen in nanoparticles by HPLC allow to conclude that the evaporation process of the solvent does not induce diffusion of sunscreen to the continuous phase (encapsulation efficiency > 95 % ). - The incorporation of the crosslinker Desmodur N100 in the oil phase of the nano-emulsion allows obtaining nanoparticles insoluble in organic solvents such as ethanol. - Characterization of treated fabrics showed that conventional fabric finishing methods "impregnation-padding-drying " are suitable to provide UV protection to fabric. - Evaluation of the properties of protection against UV radiation of the treated fabrics indicates that various modifications to the process of deposition of nanoparticles on the cotton fabric have improved fabric UV properties (UPF = 50+). - Results suggest that cotton textile UV protection is caused by nanoparticles (UVB absorption) and optical whitening agent deposition from detergent used in washing (UVA absorption).
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Sela, Ronit. "An exploration of functional and numerical flexibility in South African organisations: a qualitative study in two textile factories in Cape Town." Thesis, Rhodes University, 2002. http://hdl.handle.net/10962/d1006149.
Повний текст джерелаАнотація:
During this research, an attempt was made to gain an understanding of management and their employees' perceptions regarding functional and numerical flexibility practices within South African organisations. To achieve this, twenty-six people, comprising of a variability of positions within the organisation, were interviewed in the region of the Western Cape. It was found that, although extensive research on the two forms of flexibility have been globally conducted, South African literature, particularly on the part of numerical flexibility, is limited. It is thus believed that this study will present a valuable basis to pursue in further research. Literature that was consulted was found to be supportive of the theoretical notion that South African organisations, in order to be globally competitive, have had to restructure and redefine themselves by ensuring that they make the most efficient and effective use of their human resources. The study found that whilst functional flexibility practices benefit employees in that they experienced increased job satisfaction and job mobility, it was the area of numerical flexibility which raised many dissatisfactions, including those of immense job insecurity and remuneration, both financial and otherwise. The study findings suggest a need for a more comprehensive and employee integrated approach by combining organisational with individual oriented initiatives, and ensuring the trade union's involvement in all facets of functional and numerical flexibility initiatives. The thesis ends with recommendations of various strategies for addressing the concerns of management, employees and the trade union in order to ensure full and proper utilisation of human resources so that the end product, namely job satisfaction, leads to organisational success.
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Roberts, Bryan C. "Exploring the potential for functional enhancement of rugby union shirts through the development and implementation of sports-specific textile test methods." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/23771.
Повний текст джерелаАнотація:
Determination of rugby union shirt prototype functional performance is currently reliant on generic Standard fabric test methods or unstructured human participant trials that, often, do not take into account the demands of the game. Current research, sponsored by Canterbury of New Zealand, describes the development and implementation of reproducible rugby shirt specific textile test methods to determine the effects of contemporary garment construction. Four rugby shirt functions were chosen for investigation: rugby ball-shirt friction interaction, garment strength, thermoregulatory response to exercise when clothed and on-field garment serviceability. Using a sled-type tribometer, the rugby ball-shirt friction interaction was investigated in a range of contemporary shirt designs during simulated light human interference. It was found that the addition of polymer grip textures did not necessarily enhance traction unless raised geometric textures, adhered to the fabric surface, promoted frictional interlocking with ball pimples. A fully-manufactured shirt, as opposed to Standard bulk stock fabric, tensile strength protocol was developed to benchmark a range of contemporary shirt constructions using the strip method. Tensile strength was affected by fabric construction and anisotropy whereby micromesh fabrics, particularly orientated in the course direction, were weakest. In some cases, seam specimens were much weaker than fabric specimens in the same shirt. The thermoregulatory response to rugby attire was investigated using a novel rugby backs-specific intermittent treadmill protocol designed to replicate the physiological and locomotive demands of competitive professional match-play. The thermal and moisture management properties of baselayer, padding and shirt technologies highlighted significant thermoregulatory effects of garment choice. The thermal functionality of baselayers was superior to that of a 100% cotton t-shirt and did not impose a further thermophysical load when worn beneath a team-shirt. Shoulder padding increased skin temperature, sweat rate and rate of change of core temperature, even when worn singly. The need for a structured rugby-shirt specific wearer trial was highlighted from observation of current procedures employed by manufacturers in the rugby shirt industry. Three distinct elements of the wearer trial process were investigated: wear-service conditions replicating the physiological intensity of game-specific demands of rugby, structured garment assessment techniques including failure criteria, and unbiased player questioning through self-administered questionnaires. The range of rugby shirt performance predictors and potential design weaknesses observed in the current research has highlighted the need for a more systematic research-led approach to prototype rugby shirt testing. It is hoped manufacturers will adopt the textile test methods described to better understand rugby apparel functionality, necessary for the potential improvement of match-day performance through superior garment design.
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Andrez, Alexandra Martins. "Proteção das inovações no têxtil do futuro." Master's thesis, Instituto Superior de Economia e Gestão, 2014. http://hdl.handle.net/10400.5/7859.
Повний текст джерелаАнотація:
Mestrado em Gestão e Estratégia IndustrialA indústria têxtil demonstrou ao longo dos anos ter sido capaz de "reinventar-se", sendo hoje em dia uma indústria com grande potencial inovador em muitos segmentos, como é o caso dos têxteis técnicos e funcionais de incorporação de alta tecnologia. Na presente dissertação analisa-se não só a importância da inovação para este setor mas sobretudo a estratégia de proteção das suas inovações, através do recurso aos mecanismos da Propriedade Industrial. A nível da metodologia recorremos ao método qualitativo de estudos de caso, concretizando-o através de entrevistas a duas empresas - uma do setor têxtil e outra de um setor subsidiário daquela indústria -, análise complementada por entrevistas ao CITEVE e INPI. Verificou-se o reconhecimento da importância da inovação para as empresas em causa como fator de reforço da sua competitividade, de forma a garantir o retorno dos elevados custos dos investimentos. As empresas recorrem à Propriedade Industrial através da aquisição de direitos exclusivos da utilização das suas inovações, tendo sido identificadas algumas dificuldades associadas ao seu custo, tanto na proteção internacional como na vigilância. Neste estudo, as patentes são a modalidade habitual para evitar que as inovações possam ser facilmente copiadas; identificaram-se, paralelamente, outros meios de apropriabilidade distintos da Propriedade Industrial, como é o caso do segredo para as inovações mais complexas.
The textile industry has shown over the years the ability to "reinvent itself", being nowadays an industry with great potential for innovation in many industries, such as technical and high technology incorporated functional textiles. In this thesis we analyze not only the importance of innovation for this industry but especially the strategy of protecting its innovations, through the recourse to Intellectual Property mechanisms. At the methodology level we used the qualitative method of case studies, implementing it through interviews with two companies - one of the textile industry and another of a subsidiary sector of that industry - analysis complemented by interviews with CITEVE and INPI. The importance of innovation for these companies was recognized as a reinforcing factor of their competitiveness in order to guarantee the return of high investment costs. Companies turn to Intellectual Property through the acquisition of exclusive rights for the use of its innovations, having been identified some difficulties associated with its cost, both in the international protection and in surveillance. Patents are the most used method to prevent innovations of being easily copied; in parallel, other means of different appropriability of Industrial Property were identified, as it is the case of secrecy in the case of more complex innovations.
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Ekhagen, Sebastian. "Stability of electron acceptor materials for organic solar cells : a work function study of C60/C70 derivatives and N2200." Thesis, Karlstads universitet, Institutionen för ingenjörsvetenskap och fysik (from 2013), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-72727.
Повний текст джерелаАнотація:
Thin films of the fullerenes PC60BM and PC70BM and the non-fullerene N2200, three popular electron acceptor materials in organic photovoltaics, have been studied, using both the Kelvin probe method as well as ultraviolet photoelectron spectroscopy. With these methods the work function was measured, as well as the highest occupied molecular orbital (HOMO) onset. Additionally band bending effects were studied by illuminating the samples while measuring the work function with the Kelvin probe so called surface photovoltage. Sample of each material was exposed to either air and simulated sunlight or N2 and simulated sunlight, for different length of time, to observe how the materials work function evolves after exposure to the different conditions. It was observed that, as expected from previous studies, that PC60BM was less photo-stable than PC70BM. Additionally, the work function of PC60BM changed significantly by storage in N2. Each material after exposure for 24h to air and light, was annealed and measured with the Kelvin probe. A restoring effect was observed, for the non-fullerene material N2200. All three materials developed an increasing surface photovoltage, which suggest increased band bending, when exposed to air and light, indicating that due phot-oxidization, charges are redistributed at the surface of the film. The fullerenes showed a larger surface photovoltage effect than the non-fullerene materials. A difference between the work function values obtained from the Kelvin probe method and the ultraviolet photoelectron spectroscopy could be seen, however the exact reason for this couldn't be isolated within this thesis, but was discussed.
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Li, Menglong. "Electronic packaging for functional electronic textiles." Thesis, University of Southampton, 2018. https://eprints.soton.ac.uk/428043/.
Повний текст джерелаАнотація:
An electronic textile (e-textile) is a textile with integrated electronic functionality. It can be used in many areas, for example, clothing, medical, furniture and aerospace applications. The combination of electronics with textiles requires the use of flexible circuit technology, with electronic components mounted on polymer substrates with conductive tracks, to ensure the textile retains as much as possible their normal physical characteristics and feel. E-textiles in wearable applications are subject to human motion activities and as such the integrated electronic components can be vulnerable to different kinds of stresses such as bending. These forces can potentially shear, pull off or damage the components despite the electronic packaging methods used to protect them. Similarly, temperature changes in the environment can induce thermal expansion stresses in the electronic packaging or components which may result in failure. Therefore the need to develop a new reliable electronic packaging method for e-textiles to mitigate these stresses becomes increasingly important. This thesis presents research into a new reliable packaging technique capable of protecting components against twisting, bending or shear stresses. The use of this packaging technique has been evaluated with the ultra-thin die mounted onto thin flexible polymer film strip which contains conductive tracks for electrical interconnections and power supply for electronics. This electronic strip can be subsequently formed into yarns or woven into a textile. The review of electronic packaging techniques for forming electronic connects between the die and substrate such as flip chip bonding, anisotropic adhesives bonding and wire bonding are also included in this thesis. Finite element analysis (FEA) of the electronic strip is also presented. FEA simulations are used to evaluate the mechanical performance of different electronic packaging assemblies. An FEA investigation is presented in the materials and component dimensions in order to maximize the reliability of the packaging method. The three-point bending, shear, tensile and thermal expansion modelling have been simulated and, in the case of shear load and bending, results validated against an experimental evaluation. The shear and bending experimental results show good agreement with the simulation results and verify the simulated optimal thickness of the adhesive layer. Three under-fill adhesives (EP30AO, EP37-3FLF and Epo-Tek 301 2fl), five highly flexible adhesives (MK055, Nu355, Loctite 4860, Loctite 480 and Loctite 4902) and three substrates (Kapton, Mylar and PEEK) have been evaluated and the optimal thickness of each is found. The Kapton substrate, together with the EP37-3FLF adhesive, was identified as the best materials combination, with the optimum under-fill and substrate thickness identified as 0.05 mm. A novel method for packaging electronics using a thermally deformed Kapton was introduced. The design process for the jig that was used to deform the Kapton and the minimum temperature (360 °C) and time (60 Sec) needed to deform the Kapton has been investigated. This is also the first demonstrated method for reliably incorporating electronic circuits in a textile and that can withstand up to 45, 150,000 and 1470 cycles of machine washing, 180 degree twist test and 90 degree bending test respectively. The new ultra-thin silicon chip (0.025 mm thickness) fabrication method has also been introduced in this thesis to increase the flexibility of the electronic packaging method for functional electronic textiles.
Книги з теми "Functional textile"
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Adaptive and functional polymers, textiles and their applications. London: Imperial College Press, 2011.
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Functional textiles for improved performance, protection and health. Cambridge: Woodhead, 2011.
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Symposium Q on "Advanced Structural and Functional Materials for Protection" (2007 Singapore). Advanced structural and functional materials for protection. Switzerland, UK, USA: Trans Tech Publications, 2008.
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Sally, Milner, ed. Masterworks: Decorative and functional art. Bowral, NSW, Australia: S. Milner Pub., 2000.
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E, Roy Gerald, ed. Antique quilts & textiles: A price guide to functional and fashionable cloth comforts. Paducah, KY: Collector Books, 2004.
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library, Wiley online, ed. Plasma technology for hyperfunctional surfaces: Food, biomedical and textile applications. Weinheim: Wiley-VCH, 2010.
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Symposium T on Advanced Structural and Functional Materials for Protection (2011 Singapore). Advanced structural and functional materials for protection: Selected, peer reviewed papers from the Symposium T on Advanced Structural and Functional Materials for Protection, International Conference on Materials for Advanced Technologies (ICMAT2011), International Convention & Exhibition Centre, June 26-July 1, 2011, Singapore. Durnten-Zurich, Switzerland: Trans Tech, 2012.
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Majumdar, Abhijit, Deepti Gupta, and Sanjay Gupta, eds. Functional Textiles and Clothing. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7721-1.
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Majumdar, Abhijit, Deepti Gupta, and Sanjay Gupta, eds. Functional Textiles and Clothing 2020. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9376-5.
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Shahid, Mohammad, and Ravindra Adivarekar, eds. Advances in Functional Finishing of Textiles. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3669-4.
Повний текст джерелаЧастини книг з теми "Functional textile"
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Momtaz Islam, Md, Musa Ali Reza, Dewan Murshed Ahmed, Md Abdullah Al Mamun, and Hasan Shahariar. "Facile Metallization Technique of Textiles for Electronic Textile Applications." In Functional Textiles and Clothing, 91–99. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7721-1_8.
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Chavan, Pravin, Shahid-ul Islam, Akbar Ali, Shakeel Ahmed, Shakeel Ahmed, and Javed Sheikh. "Green Engineered Functional Textile Materials." In Green and Sustainable Advanced Materials, 263–87. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119407089.ch10.
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Sarkar, Shrabana, Karuna Soren, Priyanka Chakraborty, and Rajib Bandopadhyay. "Application of Enzymes in Textile Functional Finishing." In Textile Science and Clothing Technology, 115–27. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3669-4_5.
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Mohsin, Muhammad, and Qurat Ul Ain Malik. "Functional Finishing of Textile Materials and Its Psychological Aspects." In Advanced Textile Engineering Materials, 31–54. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119488101.ch2.
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Vigneshwaran, N., and A. Arputharaj. "Functional Finishing of Cotton Textiles Using Nanomaterials." In Textile Science and Clothing Technology, 43–56. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3669-4_2.
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Kopitar, Dragana, Beti Rogina-Car, and Zenun Skenderi. "Thermo-Physiological Comfort and Microbial Properties of Different Textile Raw Materials and Structures." In Functional Textiles and Clothing, 285–94. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7721-1_22.
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Manian, Avinash P., Tung Pham, and Thomas Bechtold. "Reactive Modification of Fiber Polymer Materials for Textile Applications." In Reactive and Functional Polymers Volume One, 21–41. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43403-8_3.
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Tadi, Kiran Kumar, N. Mahendar Reddy, Ch G. Chandaluri, Gowri Priya Sakala, and Gubbala V. Ramesh. "Functionalized Biopolymer Nanocomposites for the Degradation of Textile Dyes." In Functional Polymer Nanocomposites for Wastewater Treatment, 175–200. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94995-2_6.
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Samanta, Kartick K., and A. N. Roy. "Chemical Modification of Indian Yak Fibre for Development of Jute/Yak Fibres Blended Warm Textile." In Functional Textiles and Clothing, 151–65. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7721-1_14.
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Ma, Ke, Sébastien Thomassey, and Xianyi Zeng. "A New Collaborative Model for Demand-Driven Supply Chains: A Case Study on Textile Industry." In Functional Textiles and Clothing, 339–47. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7721-1_26.
Повний текст джерелаТези доповідей конференцій з теми "Functional textile"
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Farima, Daniela, Valentin Buliga, and Antonela Curteza. "SOFWARE APPLICATION FOR DETERMINING THE FUNCTIONAL THERMAL FIELD OF THE TEXTILE." In eLSE 2016. Carol I National Defence University Publishing House, 2016. http://dx.doi.org/10.12753/2066-026x-16-251.
Повний текст джерелаАнотація:
One of the most important issues that can be solved by using the numerical values of the thermo-physiological units (thermal resistance and resistance to the passage of the steam) is to establish the thermal field for using a textile product/apparel. The functional thermal field of a textile product/apparel is given by the variation range of the environmental temperature, situated between its minimum temperature tamin [oC] and the maximum temperature tamax [oC], when the wearer feels comfortable. This clearly indicates if the textile products/apparel corresponds to their scope of use. The scientific design of the textile materials/apparel aims for them to be functional in a wide range of environmental conditions and physical effort of the body, so that the wearer perceives them as comfortable. Then we can say that such textile material/apparel fulfills its thermal-physiological function correlated to the requirements resulted from the field of use. The first part of this paper shows the theoretical calculation algorithm of the functional thermal field and a concrete example of determining it for 6 variants of layered jersey made of cotton and polypropylene, for sport, and the second part presents a software application for determining the functional thermal field. This software application has the role to simplify the workload and to reduce the time to determine the variation range of the thermal field, allowing the possibility to simulate, within a short time, the different situations referring to the condition of the body, the environmental conditions and the thermal and physiological characteristics of the analyzed textile materials. This application needs the a database with the input data. This input data is represented by: produced metabolic heat M [W]; average temperature at the skin surface ts [?C]; air temperature of the environment ta [?C]; the area of the body F [m2]; thermal of the textiles Rt [m2?C/W]; discomfort factor d; partial pressure of the saturated water vapours at the skin surface ps [mm. col. Hg. ]; partial pressure of the water vapours in the environment pa [mm.col.Hg.]; resistance of the textiles to the passage of the vapours Rv [mm.Hg.m2/W]; thermal variation ?? [?C], individual's physical load weight m [Kg]; body weight G [Kg]; travel speed vd [m/s]; road's inclination p [%]. Based on the input data, the software application calculates the values of the output data: the energy consumed under the form of mechanic work Lm [W]; the quantity of heat lost by breathing Qres [W]; the index of permeability to wet heat im, the minimum temperature of the environment tamin [oC] and the maximum temperature of the environment tamax [oC] that will delimitate the thermal field of the analysed materials. Should the thermal field need modification, in the event it does not correspond to the field of use of the textiles / apparel, the application provides the possibility of going back to the database in order to establish other values for the input data.
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Farima, Daniela, Mirela Blaga, and Georgios Priniotakis. "SOFTWARE APPLICATION FOR THE FUNCTIONAL THERMO - DESIGN OF THE CLOTHING." In eLSE 2019. Carol I National Defence University Publishing House, 2019. http://dx.doi.org/10.12753/2066-026x-19-194.
Повний текст джерелаАнотація:
Abstract: The course of ''Comfort and function of clothing and leather products'' delivered at Faculty of Textiles, Leather and Industrial Management, is dealing with the thermo-functional design of the clothing, which is a complex approach. The paper proposes a software application, the use of which facilitates the thermo-functional design of the clothing and can be exploit as a tool in teaching activity, as well in research activities (http://www.moodle.tex.tuiasi.ro). For the calculations, two groups of factors were taken into account: factors related to the destination (environmental factors and the state of the body) and factors related to the textile materials that are part of the analyzed clothing. The two groups of factors are synthesized in two thermo physiological indicators: the total heat transfer coefficient imposed by Kimp [Kcal/m2hoC] and the total heat transfer coefficient calculated on the basis of the Kcalc [Kcal/m2hoC] textile materials. A clothing product is considered thermo-functional when the Kimps - Kcalc difference is lower or the ideal case when the two indices have equal values. The calculations follow algorithms specific to the field of thermo physiological comfort and require high work and time. Two options are available for the users after opening the application, envisaging the two mentioned indicators. The application is conceived with the possibility of memorizing the working steps, as well as with the possibility of modifying them. Another advantage of the application is that starting from the knowledge of certain values of the textile materials characteristics, the thermo- physiological evaluation of the product clothing can be achieved.
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Scarlat, Razvan victor, Eduard ionut Stefan, Cristina Grosu, and Mirela Blaga. "DIGITAL CATALOGUE OF MEDICAL DEVICES FOR HERNIA REPAIR." In eLSE 2021. ADL Romania, 2021. http://dx.doi.org/10.12753/2066-026x-21-167.
Повний текст джерелаАнотація:
One of the most important applications of textile materials is in the medical textile industry. This new field is a combination of textile technology and medical sciences with several functional applications. Nowadays, due to the increase in the aging population and hazards of human activities such as traffic accidents, chemical injuries, diseases, sports, etc., the demand for textile-based medical devices has grown rapidly. These parameters have led to the rapid development of the medical textiles market by using novel materials, techniques, and technologies to produce advanced textile-based materials as medical devices [1]. For surgical applications, implantable and topical biotextiles are now readily available and offer a wide range of structural complexities and advantages. They can be designed to perform multiple functions, including maintaining comfort and hygiene, preventing injury and infection, treating injury and disease, and even replacing injured tissue. Examples include vascular grafts, heart valves, ligaments, hernia meshes, and hemostatic dressings. These applications require careful consideration of biocompatibility and biostability. The desired properties of biotextiles vary depending on the application. Biodegradable or bioabsorbable textiles are important for devices that serve temporary functions, such as injury repair. These properties are influenced by the manufacturing process of the biotextiles, including the choice of material or polymer, as well as the structural design of the engineered textiles [2]. The paper presents an interactive learning tool that enables textile PhD students to approach the interdisciplinary field of medical devices and the associated technologies used to manufacture them. The learning content is supported by technical specifications of fabrics, specific applications, textile technologies, various product examples. This online guide is designed to familiarise the reader with textile fabrics and enhance their knowledge in developing new products. A challenge for the learner is to become familiar with and consolidate technical data on yarns, fabric structures, and properties of medical devices. The interactive e-learning tools presented in this paper represent the result of the process of innovation of the working methods applied in the knitting laboratory of the Faculty of Textiles, Leather and Industrial Management of Iasi, within "Gheorghe Asachi" Technical University of Iasi.
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Abtahi, Bahareh, Mareen Warncke, Hans Winger, Carmen Sachse, Eric Häntzsche, Andreas Nocke, and Chokri Cherif. "Novel Strain Sensor in Weft-Knitted Textile for Triggering of Functional Electrical Stimulation." In E-Textiles 2022. Basel Switzerland: MDPI, 2023. http://dx.doi.org/10.3390/engproc2023030013.
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Iordache, Ovidiu, Elena Cornelia Mitran, Irina Sandulache, Maria Memecica, Lucia Oana Secareanu, Cristina Lite, and Elena Perdum. "An overview on far-infrared functional textile materials." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.i.9.
Повний текст джерелаАнотація:
The present study was aimed at highlighting the applicability of novel generations of functional textile materials based on incorporation of safe, pyroelectric nanoparticles into fibers. The synthetic fibers with negative ions emitting properties contain semiprecious stone particles (tourmaline, monazite, opal), ceramic, charcoal, zirconium powders, aluminum titanate and mixtures of such minerals. Currently, the synthetic fibers generating pyroelectric effects are obtained by introducing minerals (e.g. superfine tourmaline powder) into melted polymers before spinning or by dispersing the minerals into the spinning solution. As polymers, polyethylene terephthalate, polyvinyl acetate, polyamide and viscose have been used. In low quantities, these minerals have almost no effect on human health. Included in large quantities, they tend to be too expensive (tourmaline, opal) and the fibers become harsh and fragile. The current generation of FIR functional textile materials faces a series of technical challenges: some of the of the used compounds are radioactive (monazite); if the particles size is too large (0.2-0.3µm), it may result in the production of highly non-uniform fibers and early wear of the mechanical parts producing installation; most of commercial pyroelectric fabrics emit a low amount of negative ions (500-2600 anions/cc) and FI rays, inducing a low health effect. Clinical studies involving exposure to pyroelectric compounds have highlighted positive effects on: blood circulation, skin cell re-vitalizing, collagen and elastin production, sleep modulation, wounds healing and acceleration of micro-circulation, chronic pain management, improvement of vascular endothelial functions, atherosclerosis and arthritis affections etc.
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Čuk, Marjeta, Matejka Bizjak, Deja Muck, and Tanja Nuša Kočevar. "3D printing and functionalization of textiles." In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p56.
Повний текст джерелаАнотація:
3D printing is used to produce individual objects or to print on different substrates to produce multi-component products. In the textile industry, we encounter various 3D printing technologies in fashion design, functional apparel manufacturing (protective, military, sports, etc.), including wearable electronics, where textile material is functionalized. 3D printing enables the personalization of the product, which in the apparel industry can be transformed into the production of clothing or parts of clothing or custom accessories. Additive technology allows a more rational use of the material than traditional technologies. In the textile industry we meet different uses of it, one is the printing of flexible structures based on rigid materials, another is the printing with flexible materials and the third is the printing directly on textile substrate. All rigid, hard and soft or flexible materials can be integrated into the final design using 3D printing directly on the textile substrate. We speak of so-called multi-material objects and systems, which have many advantages, mainly in the increasing customization and functionalization of textiles or clothing. The article gives a broader overview of 3D printing on textiles and focuses mainly on the influence of different parameters of printing and woven fabric properties on the adhesion of 3D printed objects on the textile substrate. In our research we investigated the influence of twill weave and its derivate as well as different weft densities of the woven fabric on the adhesion of printed objects on textile substrate. Therefore, five samples of twill polyester/cotton fabrics were woven and their physical properties measured for this research. 3D objects were printed on textile substrates using the extrusion based additive manufacturing technique with polylactic acid (PLA) filament. Preliminary tests were carried out to define printing parameters and different methods of attaching the fabric to a printing bed were tested. T - Peel adhesion tests were performed on the Instron dynamometer to measure the adhesion between 3D printed objects and textile substrates.
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Hertleer, Carla, Johanna Louwagie, Cedric Cochrane, and Marilyne Rochery. "AN E-LEARNING COURSE ON SMART TEXTILES ENABLED BY TRITEX." In eLSE 2013. Carol I National Defence University Publishing House, 2013. http://dx.doi.org/10.12753/2066-026x-13-268.
Повний текст джерелаАнотація:
The TRITex project (Transfer of Research and Innovations in Textiles)frames in the Interreg IV programme which stimulates cross-regional cooperation between France, the Walloon provinces and Flandres. The TRITex partners are the Flemish Department of Textiles of Ghent University and ENSAIT, a French engineering school.They collaborate to promote the use of communication and information technologies for teaching in order to diffuse knowledge in the field of smart textiles. The main goal of the TRITexproject is to develop ane-learningcourse which is remotelyavailable through a digital platform from Ghent University. The e-learning course consists of two modules, the first one on Functional and Smart Textile Materials, and the second one, building on the knowledge acquired in the first module, on Smart Textile Systems. The entire course gives the trainee a profound insight in the working principals of smart textiles and is completed with examples of prototypes and commercially available products. Throughout the course, online interaction with the teachers of the course is possible. At the end, the acquired information is tested through an extensive assessment at the end of each module. To our knowledge, there is no equivalent resource available on the net in this research area, while there is a need to it because of the continuous emergence of smart textiles. The target group for this e-learning course on smart textiles is people working in the textile industry wanting to sharpen their knowledge on new and advanced technologies. The first module has been officially launched in December 2012, while the second module is to be launched in April 2013.
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Quinlivan, Brendan, Alan Asbeck, Diana Wagner, Tommaso Ranzani, Sheila Russo, and Conor Walsh. "Force Transfer Characterization of a Soft Exosuit for Gait Assistance." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47871.
Повний текст джерелаАнотація:
Recently, there has been a growing interest in moving away from traditional rigid exoskeletons towards soft exosuits that can provide a variety of advantages including a reduction in both the weight carried by the wearer and the inertia experienced as the wearer flexes and extends their joints. These advantages are achieved by using structured functional textiles in combination with a flexible actuation scheme that enables assistive torques to be applied to the biological joints. Understanding the human-suit interface in these systems is important, as one of the key challenges with this approach is applying force to the human body in a manner that is safe, comfortable, and effective. This paper outlines a methodology for characterizing the structured functional textile of soft exosuits and then uses that methodology to evaluate several factors that lead to different suit-human series stiffnesses and pressure distributions over the body. These factors include the size of the force distribution area and the composition of the structured functional textile. Following the test results, design guidelines are suggested to maximize the safety, comfort, and efficiency of the exosuit.
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Steffen, Matthias, and Paul Uwe Thamsen. "Improvement of the Clogging Behaviour of a Wastewater Impeller by the Use of an Inlet Guide Fin." In ASME 2022 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/fedsm2022-86926.
Повний текст джерелаАнотація:
Abstract The presented paper deals with the further development of a clogging-affine impeller with the support of optical high-speed video recordings. Development towards a “guide fin” for improved clogging behaviour is presented in 3 configurations. For configuration 1, functional tests are performed which failed at all operating points, even at light textile load. Evaluation of high-speed videos led to the conclusion that the hub shape is responsible for the initiation of a clogging process. To prevent this initiation, in configuration 2 the hub area is provided with a “guide stick” and a cone positioned on the axis of rotation which deflects incoming textiles to a larger diameter and thus away from the hub. The reperformed functional tests showed a significant improvement of clogging behaviour, especially with light and medium textile loads. However, reconsideration of the high-speed videos showed that the design of the guide stick is unsuitable for higher textile loads. This led to further development of the guide fin (configuration 3), whose reperformed functional tests revealed an impeller that was free of clogging in 11 of 12 test scenarios. It can be shown that the use of an optical access provides the possibility to identify and document the beginning of a clogging event in order to derive specific design modifications that can improve the clogging behaviour of a wastewater impeller. The presented paper focusses on the clogging behaviour caused by the impeller. Further influencing factors, e.g. the volute, are not considered here.
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Golgouneh, Alireza, Brad Holschuh, Crystal Compton, and Lucy E. Dunne. "Evaluation of Textile-Based Wearable Force Sensors for Functional Clothing Applications." In Pivoting for the Pandemic. Iowa State University Digital Press, 2020. http://dx.doi.org/10.31274/itaa.12247.
Повний текст джерелаЗвіти організацій з теми "Functional textile"
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King, William T. MURI/ARO Functionally Tailored Textiles. Fort Belvoir, VA: Defense Technical Information Center, August 2002. http://dx.doi.org/10.21236/ada412609.
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Vondreele, R., A. Larson, A. Lawson, R. Sheldon, and S. Wright. A new approach to texture measurements: Orientation distribution function (ODF) determination by Rietveld refinement. Office of Scientific and Technical Information (OSTI), September 1996. http://dx.doi.org/10.2172/286284.
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Crisosto, Carlos, Susan Lurie, Haya Friedman, Ebenezer Ogundiwin, Cameron Peace, and George Manganaris. Biological Systems Approach to Developing Mealiness-free Peach and Nectarine Fruit. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7592650.bard.
Повний текст джерелаАнотація:
Peach and nectarine production worldwide is increasing; however consumption is flat or declining because of the inconsistent eating quality experienced by consumers. The main factor for this inconsistent quality is mealiness or woolliness, a form of chilling injury that develops following shipping periods in the global fruit market today. Our research groups have devised various postharvest methods to prolong storage life, including controlled atmosphere and delayed storage; however, these treatments only delay mealiness. Mealiness texture results from disruption of the normal ripening process involving disassembly of cell wall material, and creates a soft fruit texture that is dry and grainy instead of juicy and smooth. Solving this problem is a prerequisite for increasing the demand for fresh peach and nectarine. Two approaches were used to reveal genes and their associated biochemical processes that can confer resistance to mealiness or wooliness. At the Volcani Center, Israel, a nectarine cultivar and the peach cultivar (isogenetic materials) from which the nectarine cultivar spontaneously arose, and at the Kearney Agricultural Center of UC Davis, USA, a peach population that segregates for quantitative resistance to mealiness was used for dissecting the genetic components of mealiness development. During our project we have conducted research integrating the information from phenotypic, biochemical and gene expression studies, proposed possible candidate genes and SNPs-QTLs mapping that are involved in reducing peach mealiness susceptibility. Numerous genes related to ethylene biosynthesis and its signal transduction, cell wall structure and metabolism, stress response, different transcription factor families were detected as being differentially accumulated in the cold-treated samples of these sensitive and less sensitive genotypes. The ability to produce ethylene and keep active genes involved in ethylene signaling, GTP-binding protein, EIN-3 binding protein and an ethylene receptor and activation of ethyleneresponsive fruit ripening genes during cold storage provided greater resistance to CI. Interestingly, in the functional category of genes differentially expressed at harvest, less chilling sensitive cultivar had more genes in categories related to antioxidant and heat sock proteins/chaperones that may help fruit to adapt to low temperature stress. The specific objectives of the proposed research were to: characterize the phenotypes and cell wall components of the two resistant systems in response to mealiness- inducing conditions; identify commonalities and specific differences in cell wall proteins and the transcriptome that are associated with low mealiness incidence; integrate the information from phenotypic, biochemical, and gene expression studies to identify candidate genes that are involved in reducing mealiness susceptibility; locate these genes in the Prunus genome; and associate the genes with genomic regions conferring quantitative genetic variation for mealiness resistance. By doing this we will locate genetic markers for mealiness development, essential tools for selection of mealiness resistant peach lines with improved fruit storability and quality. In our research, QTLs have been located in our peach SNPs map, and proposed candidate genes obtained from the integrated result of phenotypic, biochemical and gene expression analysis are being identified in our QTLs as an approach searching for consistent assistant markers for peach breeding programs.
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Aharoni, Asaph, Zhangjun Fei, Efraim Lewinsohn, Arthur Schaffer, and Yaakov Tadmor. System Approach to Understanding the Metabolic Diversity in Melon. United States Department of Agriculture, July 2013. http://dx.doi.org/10.32747/2013.7593400.bard.
Повний текст джерелаАнотація:
Fruit quality is determined by numerous genetic factors that affect taste, aroma, color, texture, nutritional value and shelf life. To unravel the genetic components involved in the metabolic pathways behind these traits, the major goal of the project was to identify novel genes that are involved in, or that regulate, these pathways using correlation analysis between genotype, metabolite and gene expression data. The original and specific research objectives were: (1) Collection of replicated fruit from a population of 96 RI lines derived from parents distinguished by great diversity in fruit development and quality phenotypes, (2) Phenotypic and metabolic profiling of mature fruit from all 96 RI lines and their parents, (3) 454 pyrosequencing of cDNA representing mRNA of mature fruit from each line to facilitate gene expression analysis based on relative EST abundance, (4) Development of a database modeled after an existing database developed for tomato introgression lines (ILs) to facilitate online data analysis by members of this project and by researchers around the world. The main functions of the database will be to store and present metabolite and gene expression data so that correlations can be drawn between variation in target traits or metabolites across the RI population members and variation in gene expression to identify candidate genes which may impact phenotypic and chemical traits of interest, (5) Selection of RI lines for segregation and/or hybridization (crosses) analysis to ascertain whether or not genes associated with traits through gene expression/metabolite correlation analysis are indeed contributors to said traits. The overall research strategy was to utilize an available recombinant inbred population of melon (Cucumis melo L.) derived from phenotypically diverse parents and for which over 800 molecular markers have been mapped for the association of metabolic trait and gene expression QTLs. Transcriptomic data were obtained by high throughput sequencing using the Illumina platform instead of the originally planned 454 platform. The change was due to the fast advancement and proven advantages of the Illumina platform, as explained in the first annual scientific report. Metabolic data were collected using both targeted (sugars, organic acids, carotenoids) and non-targeted metabolomics analysis methodologies. Genes whose expression patterns were associated with variation of particular metabolites or fruit quality traits represent candidates for the molecular mechanisms that underlie them. Candidate genes that may encode enzymes catalyzingbiosynthetic steps in the production of volatile compounds of interest, downstream catabolic processes of aromatic amino acids and regulatory genes were selected and are in the process of functional analyses. Several of these are genes represent unanticipated effectors of compound accumulation that could not be identified using traditional approaches. According to the original plan, the Cucurbit Genomics Network (http://www.icugi.org/), developed through an earlier BARD project (IS-3333-02), was expanded to serve as a public portal for the extensive metabolomics and transcriptomic data resulting from the current project. Importantly, this database was also expanded to include genomic and metabolomic resources of all the cucurbit crops, including genomes of cucumber and watermelon, EST collections, genetic maps, metabolite data and additional information. In addition, the database provides tools enabling researchers to identify genes, the expression patterns of which correlate with traits of interest. The project has significantly expanded the existing EST resource for melon and provides new molecular tools for marker-assisted selection. This information will be opened to the public by the end of 2013, upon the first publication describing the transcriptomic and metabolomics resources developed through the project. In addition, well-characterized RI lines are available to enable targeted breeding for genes of interest. Segregation of the RI lines for specific metabolites of interest has been shown, demonstrating the utility in these lines and our new molecular and metabolic data as a basis for selection targeting specific flavor, quality, nutritional and/or defensive compounds. To summarize, all the specific goals of the project have been achieved and in many cases exceeded. Large scale trascriptomic and metabolomic resources have been developed for melon and will soon become available to the community. The usefulness of these has been validated. A number of novel genes involved in fruit ripening have been selected and are currently being functionally analyzed. We thus fully addressed our obligations to the project. In our view, however, the potential value of the project outcomes as ultimately manifested may be far greater than originally anticipated. The resources developed and expanded under this project, and the tools created for using them will enable us, and others, to continue to employ resulting data and discoveries in future studies with benefits both in basic and applied agricultural - scientific research.
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Katzir, Nurit, James Giovannoni, and Joseph Burger. Genomic approach to the improvement of fruit quality in melon (Cucumis melo) and related cucurbit crops. United States Department of Agriculture, June 2006. http://dx.doi.org/10.32747/2006.7587224.bard.
Повний текст джерелаАнотація:
Fruit quality is determined by numerous genetic traits that affect taste, aroma, texture, pigmentation, nutritional value and duration of shelf-life. The molecular basis of many of these important traits is poorly understood and it’s understanding offers an excellent opportunity for adding value to agricultural products. Improvement of melon fruit quality was the primary goal of the project. The original objectives of the project were: The isolation of a minimum of 1000 fruit specific ESTs. The development of a microarray of melon fruit ESTs. The analysis of gene expression in melon using melon and tomato fruit enriched microarrays. A comprehensive study of fruit gene expression of the major cucurbit crops. In our current project we have focused on the development of genomics tools for the enhancement of melon research with an emphasis on fruit, specifically the first public melon EST collection. We have also developed a database to relay this information to the research community and developed a publicly available microarray. The release of this information was one of the catalysts for the establishment of the International Cucurbit Genomic Initiative (ICuGI, Barcelona, Spain, July 2005) aimed at collecting and generating up to 100,000 melon EST sequences in 2006, leveraging a significant expansion of melon genomic resources. A total of 1000 ESTs were promised under the original proposal (Objective 1). Non-subtracted mature fruit and young fruit flesh of a climacteric variety in addition to a non-climacteric variety resulted in the majority of additional EST sequences for a total of 4800 attempted reads. 3731 high quality sequences from independent ESTs were assembled, representing 2,467 melon unigenes (1,873 singletons, 594 contigs). In comparison, as of June 2004, a total of 170 melon mRNA sequences had been deposited in GENBANK. The current project has thus resulted in nearly five- fold the number of ESTs promised and ca. 15-fold increase in the depth of publicly available melon gene sequences. All of these sequences have been deposited in GENBANK and are also available and searchable via multiple approaches in the public database (http://melon.bti.cornell.edu). Our database was selected as the central location for presentation of public melon EST data of the International Cucurbit Genomic Initiative. With the available unigenes we recently constructed a microarray, which was successfully applied in hybridizations (planned public release by August 2006). Current gene expression analyses focus on fruit development and on comparative studies between climacteric and non-climacteric melons. Earlier, expression profiling was conducted using macroarrays developed at the preliminary stage of the project. This analysis replaced the study of tomato microarray following the recommendations of the reviewers and the panel of the original project. Comparative study between melon and other cucurbit crops have begun, mainly with watermelon, in collaboration with Dr. Amnon Levi (USDA-ARS). In conclusion, all four objectives have been addressed and achieved. In the continuation project that have been approved we plan to apply the genomic tools developed here to achieve detailed functional analyses of genes associated with major metabolic pathway.