크리스티 맷슨의 자카드 위빙에 적용된 일렉트로닉 텍스타일 연구

김종옥 한국기초조형학회 2019 기초조형학연구 Vol.20 No.1

The purpose of this study was to investigate the expressive characteristics of electronic textiles in interactive weaving works by Christy Matson. It is no exaggeration to say that electronic textiles are playing critical roles in the research and development process of wearable technologies capable of real-time monitoring. In the present study, electronic textiles were presented a new in two paradigms, "in put and out put textiles." In put textiles are electronic, being charged with electric currents. They can serve as soft switches themselves and send out in put signals. Reacting to signals reaching the microboard, out put textiles are electronic ones to serve as out puts. They are an extended paradigm of smart textiles. The expressive characteristics of these new electronic textile categories were analyzed in terms of materials, techniques, and installations based on Christy Matson's jacquard weaving. The analysis results led to a conclusion that they were strongly characterized by the installation features of interior textiles based on input electronic weaving in various conducting materials. The study thus proposes the possibilities of developing diverse interactive textile designs based on the application of smart textile expressions and hopes that its findings will serve as guidelines to lead the smart textile industry. 본 연구의 목적은 크리스티 맷슨의 인터랙티브 위빙 작품에서 표현된 일렉트로닉 텍스타일의 표현 특성을 고찰하는데 있다. 텍스타일 분야에서 실시간 모니터링이 가능한 웨어러블의 기술들이 연구, 개발되고 있는 과정에서일렉트로닉 텍스타일은 중요한 역할을 하고 있다고 해도 과언이 아니다. 이에 본 연구에서 일렉트로닉 텍스타일을 ‘인풋(In Put) 텍스타일’과 ‘아웃풋(Out Put) 텍스타일’의 두 가지 패러다임으로 분류하여 새롭게 제시하였다. 전류가 통하는 텍스타일이며, 스스로 소프트 스위치의 역할이 가능하여 인풋의 신호를 보낼 수 있는 텍스타일과마이크로 보드로 전달된 신호에 따라 반응하는 아웃풋의 역할을 하는 일렉트로닉 텍스타일로 분류하였고 이는스마트 텍스타일의 확장된 패러다임으로 보았다. 이렇게 새롭게 분류한 일렉트로닉 텍스타일의 표현 특성을 크리스티 맷슨의 자카드 위빙을 근거로 재료, 기법, 설치 특성으로 나누어 분석하였다. 이에 다양한 전도성사를 활용한 인풋 일렉트로닉 위빙과 이를 활용한 인터랙티비티의 설치는 공간과 어우러지는 특성이 강하게 보이고 있다는 결과를 도출할 수 있었다. 이를 통해 인테리어 공간을 위한 일렉트로닉 텍스타일의 요소로 활용가능성을 알수 있었다. 이는 다양한 인터랙티브 텍스타일디자인에 관한 개발이 가능함을 제안하며, 스마트 섬유산업을 이끌어 갈 수 있는 가이드라인으로 활용될 수 있기를 기대하는 바이다.

E-textile gas sensors composed of molybdenum disulfide and reduced graphene oxide for high response and reliability

Yun, Yong Ju,Hong, Won G.,Kim, Do Yeob,Kim, Hae Jin,Jun, Yongseok,Lee, Hyung-Kun Elsevier Sequoia 2017 Sensors and actuators. B Chemical Vol.248 No.-

<P><B>Abstract</B></P> <P>Textiles with electronic functions (<I>e</I>-textiles) have been investigated due to a raise of internet-of-things (IoTs) and wearable electronics. The authors reported <I>e</I>-textile gas sensors based on reduced graphene oxides (RGOs) which were coated on the commercially available yarns treated with Bovine Serum Albumin (BSA) as a molecular glue. The <I>e</I>-textiles show sensitive responses to NO<SUB>2</SUB> (25%@4.5ppm) and durabilities to washing and bending stresses. This study reports an ultrasensitive response of an <I>e</I>-textile to NO<SUB>2</SUB> using combined sensing materials of transition metal disulfide (TMD) and RGO. The <I>e</I>-textile covered with MoS<SUB>2</SUB> and RGO shows a 28% response to 0.45ppm of NO<SUB>2</SUB> gas which is one of the most sensitive responses using RGOs as sensing materials.</P> <P><B>Highlights</B></P> <P> <UL> <LI> This manuscript reports bendable and washable electronic textile (<I>e</I>-textile) gas sensors composed of molybdenum disulfide(MoS<SUB>2</SUB>) and reduced graphene oxides (RGOs) using commercially available cotton yarn and molecular glue through an electrostatic self-assembly. </LI> <LI> The <I>e</I>-textile gas sensor possesses chemical durability to detergent washing treatments up to 100 times and mechanical stability under 1,000 bending tests as well as a high response to NO<SUB>2</SUB> gas at room temperature. </LI> <LI> Raman spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy confirm the wrapping of sensing materials composed of RGO and MoS<SUB>2</SUB> on cotton yarn. The large accessible surface of the yarn, composed of several hundreds of fibrils, and a robust wrapping method using molecular glue and 2D sensing material are considered the origins of the high sensor performances, such as the gas response and stability. </LI> <LI> Furthermore, the authors found that the combination of 2D sensing materials has a synergic effect on sensing NO<SUB>2</SUB> with 48% response to 4.5ppm of NO<SUB>2</SUB> gas </LI> </UL> </P>

Wearable ultra-lightweight solar textiles based on transparent electronic fabrics

Wu, Chaoxing,Kim, Tae Whan,Guo, Tailiang,Li, Fushan Elsevier 2017 Nano energy Vol.32 No.-

<P><B>Abstract</B></P> <P>Wearable solar textiles have currently emerged as excellent candidates for potential applications in next-generation wearable functional clothing. Here, we report a wearable ultra-lightweight polymer solar textile based on transparent electronic fabrics (e-fabrics). The transparent e-fabrics with a structure of polyester/Ag nanowires/graphene core-shell have been used as anodes, as well as transparent substrates, for solar textiles. The anode buffer layer and the bulk heterojunction layer were deposited by blade-coating them onto the e-fabrics. The fabricated solar textiles show a power conversion efficiency of 2.27%, a low areal density of 5.0mg/cm<SUP>2</SUP>, good endurance against mechanical deformations, and high compatibility with clothing. These results indicate that these novel solar textiles hold potential applications in the field of wearable self-powered portable electronics.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Wearable ultra-lightweight polymer solar textile based on transparent electronic fabrics (e-fabrics) is developed. </LI> <LI> Transparent e-fabric has been used as anodes as well as transparent substrates for solar textile. </LI> <LI> Solar textile shows a power conversion efficiency of 2.27%, good endurance against mechanical deformations, and high compatibility with clothing. </LI> <LI> Solar textile shows a low areal density of 5.0mg/cm<SUP>2</SUP>. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Putting Function into Fashion: Organic Conducting Polymer Fibres and Textiles

Wallace, G.G.,Campbell, T.E.,Innis, P.C. The Korean Fiber Society 2007 Fibers and polymers Vol.8 No.2

Textiles have traditionally been employed over the centuries with great utility in areas as diverse as fashion through to technical textiles. In all these instances the textile itself has been a structural element that once fabricated has limited utility beyond the intended structural and aesthetic application. In recent years there has been a shift towards the incorporation of electronic systems into textile structures. The new paradigm for textiles is the development of systems that not only provide the more traditional aspects of textiles but expands upon this to provide a unique capability to transmit and store information and energy. More importantly these next generation materials will be capable of responding to external stimuli, modifying features of the textile in a direct response to its working environment. A potential route to truly functional electronic textiles is through the application of conducting polymers.

Highly Flexible Electrospun Nanofiber-Based Phototransistors on a Textile Composite and Their Applications in Wearable Photosensors

이무열,홍자연,이은광,유호정,김효은,박종민,이제욱,이원오,오준학 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0

Organic Electronics has highlighted as next-generation electronics such as wearable electronics because of their flexibility, low-cost, lightweight properties, and easy fabrication process. Textiles have been considered strong candidates as novel substrates for wearable electronics with high flexibility and stretchability. However, the textile is hard to be utilized as the substrate of the electronic devices because of its high surface roughness. Herein, we report highly flexible transistor-based photosensors based on a textile/PDMS composite substrate and electrospun semiconducting nanofibers. The textile-based phototransistors showed operation stability under harsh mechanical deformations. Finally, we demonstrated flexible arrays (10 × 10 of photosensors) which can detect incident photonic signals with high resolution. Our results showed the possibility of applications toward the wearable photosensors.

Fabrication of highly flexible textile-based organic transistors and application toward wearable photosensors

이무열,홍자연,이은광,이해랑,박철희,이원오,이제욱,오준학 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1

There is growing interest in sensors based on organic field-effect transistor (OFET) platform due to its use as wearable electronic devices. Although textile is one of the strong candidates for wearable electronics because of its high flexibility, textile is hard to be utilized as the substrate because of its high surface roughness. Herein, we report highly flexible photosensors based on a buffered textile substrate. Electrospun organic nanofibers were used as active layer for the sensors. As a result, textile-based OFETs showed high electrical performance and mechanical stability with low bending radius (~ 1.0 mm). Furthermore, photoresponsive characteristics of the devices have been investigated under irradiation of various wavelengths. The results showed possibility of application for our devices toward the wearable photosensors.

Environment friendly, transparent nanofiber textiles consolidated with high efficiency PLEDs for wearable electronics

Park, M.,Lee, K.S.,Shim, J.,Liu, Y.,Lee, C.,Cho, H.,Kim, M.J.,Park, S.J.,Yun, Y.J.,Kim, H.Y.,Son, D.I. ELSEVIER 2016 ORGANIC ELECTRONICS Vol.36 No.-

<P>Electrospinning used to fabricate eco-friendly, transparent, human hair-based nanofibers (NFs) using natural resources such as keratin (which is found in hair, wool, feather, nails, and horns). These NF-based textiles are very useful in making transparent, wearable electronics, as they possess unique optical properties in the visible light regions, such as transparency exceeding 85%. The resulting environmentally friendly, hair-based NFs were investigated through various methods. In order to study transparent property of optically transparent NFs for applying transparent wearable devices, we fabricated transparent flexible consolidated sandwich structures embedded in NF textiles with polymer light-emitting diodes (PLEDs). The devices exhibit the fabrication process and characterization of consolidated textiles and PLEDs by using various color emission type of polymer. Also, we investigated a comparison between PLEDs without textiles and consolidated PLEDs with textile. When used white, red, and yellow polymer in this consolidated textile/LEDs/textile structures, the performances of device was obtained from a spectrally white, red, and yellow color light with a maximum luminance of 2781, 2430, and 6305 cd/m(2) at 13, 11, and 10 V, respectively. The LED characteristics of the consolidated PLEDs with textile maintained similar device efficiencies of PLEDs without textiles. (C) 2016 Elsevier B.V. All rights reserved.</P>

Demonstration of durable electronic textiles via mechanically assisted highly adhesive printing of carbon nanotube-polymer composites on commercial fabrics

Kwangjin Choi,Hyungi Son,Jaewon Park,Inhui Han,Byeol Han,Boohyun Youn,Jonggab Park,Mingyu Kim,Eunchang Jeong,Jong G. Ok 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.108 No.-

We demonstrate the highly adhesive and uniform printing of carbon nanotube (CNT)-polymercomposites (CPCs) on diverse commercial fabrics for durable electronic textiles. The mechanicallyassisted printing (MAP) technique proposed in this work enables the uniform and faithful printing of conductiveCPCs on fabrics with excellent adhesion against fabric deformation and stretching. We have systematicallystudied that the printability and conductivity of CPCs can be optimized by controlling themixture ratio of the CNTs in an adequate polymer. We also present that various practical patterningmethods, such as masked printing and pattern molding, can be applied to the MAP of specifically patternedCPCs to fabricate flexible electronic circuits that operate durably on fabrics. Many diverse industrialapplications may benefit from this work, including but not limited to lightweight flexible electronicsand sensors, wearable devices and gears, and functional textiles.

플렉시블/웨어러블 일렉트로닉스 최신 연구동향

강석희,홍석원,Kang, Seok Hee,Hong, Suck Won 대한용접접합학회 2014 대한용접·접합학회지 Vol.32 No.3

Flexible devices have been developed from their rigid, heavy origins to become bendable, stretchable and portable. Such a paper displays, e-skin, textile electronics are emerging research areas and became a mainstream of overall industry. Thin film transistors, diodes and sensors built on plastic sheets, textile and other unconventional substrates have a potential applications in wearable displays, biomedical devices and electronic system. In this review, we describe current trends in technologies for flexible/wearable electronics.

EU환경정책과 한국기업의 대응에 관한 연구

변재웅 한국유럽학회 2006 유럽연구 Vol.23 No.-

The Treaty of Rome made no provision for a Community environment policy. The environmental programmes now cover many fields, ranging from chemicals to climate change. But, the fundamental aim of the policy is to protect the natural environment of the European region so as to contribute to the sustainable growth of the EU market. This paper considers the case of the EU environmental policy and its implications. The EU environmental policy has a mixed effect (either positive or negative) on non-member countries, such as Korea, in many ways. Applying the strict EU environmental policy will boost the manufacturing sectors that produce the commodities related to environment. The policy will contribute to the creation of a larger market than before, by allowing environmentally friendly goods and services to move freely without any regulation. In fact, it requires non-member countries, like Korea, to meet a high standard of environmental rules. But, if Korean firms meet the newly imposed requirements, there would be many opportunities for them to do new businesses. If not, Korean firms will face some difficulties to penetrate the EU markets. In this paper we address how Korean exports to EU can be affected by the EU environmental policy. The main discussion will be focused on the manufacturing sectors, such as automobiles, textile, and electronics. This paper is organized as follows. Section II reviews the EU environmental policy. Section III analyses the impacts of the policy on the Korean manufacturing sectors, such as automobiles, textile, and electronics. Section IV suggests some reform measures to meet the EU environmental policy newly imposed. Finally, conclusions are provided in Section V. 최근 EU는 각종 환경관련 규제들을 강화하여 친환경적인 제품생산을 유도하고 있으며, EU 환경기준은 EU 수출국에게는 이중적인 의미를 내포하고 있다. EU 환경규제 조치는 가전제품정보통신기기 등의 소비재로 확산되고 있어 환경기준을 충족시키지 못하는 역외국 기업들에게는 무역장벽으로 작용한다. 이면에는 유럽의 우수한 환경기술로 환경규제를 지속적으로 강화하고 있다. 한국의 경우, EU 환경규제로 인해 한국기업의 수출에 긍정적 혹은 부정적인 영향을 미칠 것으로 전망되어 이에 따른 적절한 대응이 필요한 실정이다. 한국기업은 현행 EU 환경규제 뿐만 아니라 장기적인 관점에서 선진국의 산업환경정책 방향을 주시하고, 기업활동 전 과정에 걸친 환경친화성을 제고하기 위한 계획 수립과 시행이 필요하다. 본 논문은 최근 관심이 고조되고 있는 EU의 환경규제 정책에 관한 연구로서, EU 환경규제 정책 시행에 따른 국내기업의 대응과 시사점을 중심으로 분석하며, 전기전자산업, 자동차산업, 섬유산업을 사례 분석한다.