Pages: 1/1 First page 1 Final page [ View by Articles | List ]

[Pinned] Hi tech textile is more and more popular!

[不指定 2011/01/05 09:12 | by admin ]
1.hi tech textile Introduction

Friction (DREF) spinning system is an Open-end and or Core sheath type of spinning system. Along with the frictional forces in the spinning zone the yarn formation takes place. The DREF spinning system is used to produce yarns with high delivery rate(about 300mpm). Still it has to gain its importance with the growth along with  hi tech textile  technical textiles in India. Amongst the spinning systems, DREF provides a good platform for production of core spun yarns due its spinning principle.It offers less spinning tension to the core and core will be positioned exactly at the centre of the yarn.

Development of DREF core-spun yarns unveils a path for new products including high performance textiles, sewing threads and in the apparels due to its exceptional strength, outstanding abrasion resistance, consistence performance in sewing operation, adequate elasticity for the stretch requirements, excellent resistance to perspiration, ideal wash and wear performance and permanent press. hi tech textile

2.0 Principle of Friction (DREF) spinning hi tech textile Systems

The friction spinning system consists of opening & individualization of fibres from slivers, reassembling of individualized fibres, twisting and winding of yarn. The figure 1 describes the DREF spinning principle where the opened fibres made roll with an aid of a mechanical roller for reassembling and twisting. Due to separate yarn winding and method of twist insertion, it has hi tech textile capability to go for high production rate.

2.1. DREF-1

DREF-1 friction spinning system was developed in 1973 by Dr.Fehrer.A.G. of Austria.The schematic diagram of DREF 1 spinner is shown in the figure 2.The fibres were opened with an opening roller and allowed to fall on a single perforated cylindrical drum slot ,which has negative pressure for fibre collection.The hi tech textile rotation of the drum impart twist to fibre assembly [1].

The ratio of perforated drum to yarn surface is very large, hence the drum speed can be kept relatively low, even if one takes the unavoidable slippage into account [2]. Due to the absence of positive control over the fibres assembly, slippage occurred between the fibre assembly and perforated roller, which reduced twist efficiency of hi tech textile . Hence this development could not be commercialized.

2.2. DREF-2

This is the development with earlier machine. DREF-2 was exhibited in the year 1975 at ITMA exhibition. The feasibility of using two perforated rotating cylinders, (as fibre collecting means), while at the same time the spinning-in of fibres into yarn occurred [3]. It operates on the basis of mechanical/aerodynamic spinning system with an internal suction and same direction of drums rotation [4]. The schematic diagram of the DREF-2 friction spinner is shown in the figure3. Drafted slivers are opened into individual fibres by a rotating carding drum covered with saw tooth type wire clothing. The individualized fibres are stripped off from the carding drum by centrifugal force supported by an air stream from the blower and transported into the nip of two perforated friction drums where they are held by suction. The fibres are sub-sequentially twisted by mechanical friction on the surface of the drums. Suction through the perforations of the drums assists this process besides helping in the removal of dust and dirt, thereby contributing to production of cleaner yarn [5]. The hi tech textile low yarn strength and the requirement of more number of fibres in yarn cross-section(minimum 80-100 fibres) were restricted the DREF-2 spinning with coarser counts (0.3-6s Ne).


2.3. DREF-3

The DREF-3 machine is the next version of DREF 2 for improving the yarn quality came to the market in the year 1981.Yarns up to 18s Ne. can be spun thro this hi tech textile  system.

This is a core-sheath type spinning arrangement. The sheath fibres are attached to the core fibres by the false twist generated by the rotating action of drums. Two drafting units are used in this system, one for the core fibres and other for the sheath fibres. This system produces a variety of core-sheath type structures and multi-component yarns, through selective combination and placement of different materials in core and sheath. Delivery rate is about 300 m/min. DREF 3 schematic diagram is shown in the hi tech textile figure 4.

2.4. DREF-5

It was developed by Schalafhorst, Suessen and Fehrer Inc. The range of count to be spun from this system is from 16�s to 40�s Ne.Production speed is up to 200m/min.The schematic diagram of the DREF 5 is shown in the figure 5. The individualized fibres from a single sliver are fed through a fibre duct into the spinning nip at an angle to the yarn axis, so that they are stretched as far as possible, when fed into the nip[7]. This hi tech textile spinning system was not commercialized due to some reasons.

Tags: , ,

Textile & apparel fair information

[不指定 2011/01/05 09:24 | by admin ]
Textile & apparel fair information

Vestagen Technical Textiles announces its inaugural participation in the 50th annual Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC) this week, hosted by The American Society for Microbiology. Vestagen will exhibit its fluid repellant Vestex™ performance medical apparel at the conference, which will also be the subject of a poster session with Dr. Ruta Dubinskaite. Textile & apparel fair information

Vestex uses exclusively licensed and patented technology to repel blood and bodily fluids, wick away perspiration and contains an antimicrobial to control odors. The innovative, nanotechnology-based uniforms keep healthcare workers clean, cool and dry. Textile & apparel fair information

Earlier this year, a research team led by Dr. Ruta Dubinskaite, Margaret Cotton, Dr. Christopher Gibson, Dr. Thomas Walsh, Dr. Shmuel Shoham and Dr. Matthew Hardwick tested Vestex in emergency rooms and critical care departments where splashes and splatters of bodily fluids are daily occurrences. To evaluate the impact of Vestex fabric treatment on healthcare worker clothing, doctors tested shirts with one half control fabric and one half Vestex fabric Textile & apparel fair information.

Twenty-nine shirts were autoclaved and given to health care workers in the emergency and critical care departments at Washington Hospital Center.  Workers wore the scrub shirts for one eight- to 12-hour shift. Shirt microbial contamination was assessed at baseline and at the end of the shift by swabbing 12 distinct areas of the garments for culture. Total colony counts of cultures from each shirt compared the Vestex treated portion to the untreated portion. Overall, the Vestex-treated portion of the scrub shirts had fewer pathogens at the end of the shift than the control fabric.  Researchers concluded that there is, “a strong trend suggesting that Vestex treated garments are more effective at reducing microbial burden than control fabric.” Textile & apparel fair information

“The results are encouraging and add to the clinical and laboratory evidence base for Vestex,” says Ben Favret, president and CEO of Vestagen.  Textile & apparel fair information

Engineered as a first line of defense against blood and other bodily fluids, Vestex comes at a time when the nation’s healthcare industry is on high alert. Mounting data suggests that microbial contamination can occur via the physical transfer of microorganisms from textiles such as scrubs, lab coats and bed linens. Textile & apparel fair information

“It’s well documented in the medical literature that fluid barriers protect workers in a clinical setting, but most of them are hot and uncomfortable to wear,” Favret adds.  “Vestex is a breathable, comfortable solution, yet maintains the barrier protection workers need to stay safe.”

As an innovator in infectious disease prevention and patient safety, the University of South Florida College of Medicine's Division of Infectious Disease and International Medicine is instituting high-tech, fluid repellant Vestex™ lab coats for its physicians and advanced clinical staff. Engineered as a first line of defense against blood and other bodily fluids, Vestex will help prevent contamination of clothing in healthcare textiles. Textile & apparel fair information

"We are committed to excellence in healthcare and that begins with safety for our patients and our employees," says John Sinnott, MD, FACP, FISDA, associate dean and division director. "As the latest advance in textile technology, Vestex will be another instrument in our quest for innovation. This is the next step in our mission to be an internationally outstanding academic center and resource for infectious disease identification, prevention and treatment issues."

As the principal infectious disease organization in Florida, the division conducts research, analyzes infectious disease policies, and provides clinical care and training to healthcare workers both locally and throughout the world. Sinnott is a Fellow of the American College of Physicians and the Infectious Disease Society of America. Textile & apparel fair information

Developed by Orlando-based Vestagen Technical Textiles, Vestex uses exclusively licensed and patented technology to repel blood and bodily fluids, wick away perspiration, guard against degradation from microorganisms, and control odors. The innovative, nanotechnology-based textile helps prevent contamination of the clothing while keeping the wearer clean, cool and dry. Textile & apparel fair information

"Frequent exposure of healthcare workers to contaminants is predictable in high patient-contact areas like infectious disease units," said Ben Favret, president and CEO of Vestagen. "Vestex will help keep physicians safe from unpredictable spills or splatters that may occur and introduce a new level of protection."

To learn more about Vestex technology, visit www.vestexprotects.com.  Textile & apparel fair information
Tags: , , , ,

textile & apparel fair information

[不指定 2011/01/05 09:22 | by admin ]
High Tech Textiles    (textile & apparel fair)


Qualification and title conferred – Master in High-Tech Textiles, Mestre textile & apparel fair.

Official length - 2 years/4 semesters/40 weeks of full-time study per year/120 ECTS credits textile & apparel fair.

Access requirements – First cycle course in Engineering or Engineering Sciences textile & apparel fair.

Programme requirements - Innovation and development of textile-based materials and products for non-traditional applications is crucial to the future of the European textile industry.  Emerging from these, e (electronic)-textiles, i (interactive)-textiles, I (interactive)-wear, bio textiles, medical and healthcare textiles, textile composites surface functional finishing and functional materials are the most promising.  The Master’s course is specifically oriented to three emerging application areas, leading to 3 course options/branches:  Multifunctional Textiles, Textile Composites and Biomedical Textiles.  textile & apparel fair
To obtain the Master’s degree in High-Tech Textiles in one of the three options offered, the student has to complete 120 ECTS. When completing 60 ECTS the student is entitled with a Postgraduate Diploma in High-Tech Textiles.textile & apparel fair
The Master’s course offers a set of curricular units from the scientific areas of the Textile Engineering Department (Textile Science, Textile Technology, Textile Design and Textile Management), in which collaborate the Departments of Polymer Engineering, Industrial Electronics and Biological Engineering, from the Engineering School. textile & apparel fair
The first semester comprises 4 curricular units, common to all options, in the area of methodologies, techniques and technologies involved in Textile–based Product Development. In the 2nd semester, besides a common curricular unit on Research and Development Trends, the course offers 4 curricular units, specific to each option.  The 3rd and 4th semesters include 2 curricular units – Research Methodologies (common to all options) and R&D project Dissertation. This latter is defined according to the course option selected by the student and can have co-supervision of the Departments involved. textile & apparel fair
The main characteristic of the course is the systematic approach to the market and product, together with the knowledge of industry’s technological and production aspects. Pluri and Interdisciplinary are structural features of the course.  This qualification profile will lead to professionals with competences and skills compatible with the flexibility and knowledge-intensive attributes of this industry. This professional will have the ability to solve problems in a structured way within broader contexts, integrate knowledge, handle complexity and formulate judgements that reflect social and ethical responsibilities. textile & apparel fair

Access to further study - The master degree allows access to doctoral studies, according to the terms described at DGES/Academic+Recognition/Diploma+Supplement. textile & apparel fair

Professional Status and Opportunities - These highly qualified specialists are able to integrate enterprises in the areas of Functional and Technical Textiles development; enterprises developing their activity in fields related to materials and fibrous structures application, such as in the medical, construction, transportation sports and protection sectors, as well as, in R&D organizations. textile & apparel fair

Application Deadlines: 1-19 June; 17August - 8 September; 29 September - 2 October;
Location: Campus of Azurém, Guimarães textile & apparel fair

Course Director:
Ana Maria Moreira Ferreira Rocha

ECTS Coordinator(s):
Rosa Maria Castro Fernandes Vasconcelos  textile & apparel fair
R & D    
The School of Engineering organizes its R&D activity  in order to assure that all researchers and teaching staff are integrated in R&D Centres of the University. textile & apparel fair

The R&D activities of the School of Engineering are coordinated in 11 R&D Centres: textile & apparel fair

          o
            Algoritmi Centre
          o
            Science and Textile Technology Centre
          o
            Biological Engineering Centre
          o
            Territory, Environment and Construction
          o
            Institute for Sustainabilty and Innovation in Structural Engineering
          o
            Mechanical and Materials Technology Centre
          o
            Institute for Polymers and Composites
          o
            Biomaterials, Biodegradables and Biomimetics
          o
            Computer Science and Technology Center
          o
            Interdisciplinary Center for Production Technology and Energy

The School of Textiles and Design, formerly the Scottish College of Textiles, has had a distinguished history since 1883.

Since its beginnings the School has specialised in the education of professionals and practitioners in the global textile and clothing industry and has established a reputation as one of the world's leading textile institutions. textile & apparel fair

Located at the newly opened Scottish Borders Campus, the School is small and friendly which, together with its specialist facilities, provides a stimulating and creative environment in which to learn. Our excellent record for providing professional and vocational orientated courses ensures that graduates are highly successful in securing employment throughout the industry.

The School has well established alumni associations across the world who assist the School and our students in a number of ways e.g. competitions, sponsorship, speakers, work placements and projects, to name just a few. The study of textiles and apparel, leads to exciting and diverse opportunities in a worldwide industry, as textiles and fashion are fundamental to modern society and culture. textile & apparel fair

We provide an extensive range of facilities including spacious studios, superbly equipped workshops for knit, weave, print and apparel, computer suites, and CAD/CAM studios to enhance teaching excellence within the School. The School is engaged in leading-edge research projects in textiles, design, fashion, clothing and colour science, which reinforce our international reputation and contribute towards excellence in teaching. textile & apparel fair
Tags: , , ,

The study of hi tech textile

[不指定 2011/01/05 09:17 | by admin ]
High - tech - textiles in competition sports hi tech history

Michaela NusserCorresponding Author Contact Information, b, E-mail The Corresponding Author and Veit Sennerb

b Technische Universität München, Department of Sports Equipment and Materials, Boltzmannstrasse 15, 85747 Garching b. München
Received 31 January 2010;
revised 7 March 2010;
accepted 21 March 2010.
Available online 11 June 2010.

Abstract hi tech history

The discrepancy of performance among competitive athletes is getting smaller and smaller. Therefore wearing high tech textile could help to get advantage over competitors. For this reason a lot of investigation has been done on developing high tech textiles that support the athletes to better performance. The aims of this study were to give an overview on the available products and to evaluate their level of innovation. Furthermore the research project should reveal which products are effectively used in trainings and competition. Finally the study elicits the status of current research and shows prospective research potential. hi tech history

Keywords: Peformence; Competion sports, ompression garments; Smart textiles; Wearable techonology
References hi tech history

[1]JC Chatard, D Atlaoui, J Farjanel, F Louisy, D Rastel and CY Guezennec, Elastic stockings, performance and leg pain recovery in 63-year-old sportsmen, Eur J Appl Physiol 93 (3) (2004), pp. 347–352. View Record in Scopus | Cited By in Scopus (21) hi tech history

[2]DN French, KG Thompson, SW Garland, CA Barnes, MD Portas and PE Hood, The effects of contrast bathing and compression therapy on muscular performance, Med Sci Sports Exerc 40 (7) (2008), pp. 1297–1306. View Record in Scopus | Cited By in Scopus (7) hi tech history

[3]ND Gill, CM Beaven and C Cook, Effectiveness of post-match recovery strategies in rugby players, Br J Sports Med 40 (3) (2006), pp. 260–263. View Record in Scopus | Cited By in Scopus (41) hi tech history

[4]A Coza, BM Nigg, JF Dunn, B Anderson, Partial external soft tissue vibration damping decreases local oxygen consumption. American Society for Biomechanics. Annual Meeting 2009. Abstract online verfügbar, Zugriff am 8.11.2009 unter http://www.asbweb.org/conferences/2009/2009.html#C. hi tech history

[5]B Dascombe, A Scanlan, M Osborne, P Reaburn, The effect of lower body compression garments on physiological and performance responses across a one hour cycling time trial. 12th Annual Congress of the ECSS, Finnland 2007.

[6]T Higgins, GA Naughton and D. Burgess, Effects of wearing compression garments on physiological and performance measures in a simulated game-specific circuit for netball, J Sci Med Sport 12 (1) (2009), pp. 223–226. Abstract | Article | PDF (201 K) | View Record in Scopus | Cited By in Scopus (5) hi tech history

[7]LA Houghton, B Dawson and SK Maloney, Effects of wearing compression garments on thermoregulation during simulated team sport activity in temperate environmental conditions, J Sci Med Sport 12 (2009), pp. 303–309. Abstract | Article | PDF (187 K) | View Record in Scopus | Cited By in Scopus (5) hi tech history

[8]R Duffield, J Cannon and M. King, The effects of compression garments on recovery of muscle performance following high-intensity sprint and plyometric exercise, Journal of Science and Medicine in Sport (2009), pp. 1–5. hi tech history

[9]MI Trenell, KB Rooney, M Carolyn, S Campbell and H Thompson, Compression garments and recovery from eccentric exercise: a 31P-MRS Study, Journal of Sports Science and Medicine 5 (2006), pp. 106–114. View Record in Scopus | Cited By in Scopus (12) hi tech history

[10]M Rieländer, Leistungssteigerung durch mehrflächige Sporttextilien, Ausdauersport. Zentrale Themen 1988; 91–6. hi tech history

[11]G Gremion, R. Bielinski, J Vallotton, P.F. Leyvraz and C. Gobelet, Influence de l’habillement sur la performance physique en ambiance thermique chaude, Schweizerische Zeitschrift für Sportmedizin und Sporttraumatologie 45 (1997), pp. 179–181. View Record in Scopus | Cited By in Scopus (2) hi tech history

[12]D Feyerabend, Der Einfluss von Temperaturveränderung und unterschiedlichen Sporttextilien auf das Herz-Kreislauf- und StoffwechselSystem bei Stufentest-Belastungen. Diss. Uni Leipzig 1995. Leipzig. hi tech history

[13]AJ Purvis and NT Cable, The effects of phase control materials on hand skin temperature within gloves of soccer goalkeepers, Ergonomics 43 (10) (2000), pp. 1480–1488. View Record in Scopus | Cited By in Scopus (5)

[14]HM Toussaint, PJ Beek, Biomechanics of competitive front crawl swimming. 1992. hi tech history

[15]I Rogowski, K Monteil, P Legreneur and P Lanteri, Influence of swimsuit design and fabric surface properties on the butterfly kinematics, J Appl Biomech. 22 (1) (2006), pp. 61–66. View Record in Scopus | Cited By in Scopus (1) hi tech history

[16]R Dantas De Lucas, P Balikian, CM Neiva, CC Greco and S. Denadai, The effects of wet suits on physiological and biomechanical indices during swimming, Journal of Science and Medicine in Sport 3 (1) (2000), pp. 1–8. hi tech history

[17]PAH Upton, TD Noakes and JM Juritz, Thermal pants may reduce the risk of recurrent hamstring injuries in rugby players, British Journal of Sports Medicine 30 (1) (1996), pp. 57–60. hi tech textile history

[18]KU Schmitt, M Nusser, S Derler, P Boesiger, Analysing the protective potential of padded soccer goalkeeper shorts. British Journal of Sports Medicine (doi:10.1136/bjsm.2008.048058). hi tech textile history

[19]R Paradiso, G Loriga, N Taccini, A Gemignani and B. Ghelarducci, Wealthy-a wearable healthcare system: new frontier on e-textile, Journal of Telecommunications and Information Technology (2005), p. 4. hi tech textile history

[20]D De Rossi, F Carpi, F Lorussi, A Mazzoldi, R Paradiso, EP Scilingo and A. Tognetti, Electroactive Fabrics and Wearable Biomonitoring Devices Autex Research Journal (2003), p. 3.

[21]F Axisa, PM Schmitt, C Gehin, G Delhomme, E McAdams and A. Dittmar, Flexible technologies and smart clothing for citizen medicine home healthcare and disease prevention, Information Technology in Biomedicine IEEE Transactions 9 (3) (2005), pp. 325–336. View Record in Scopus | Cited By in Scopus (50)

[22]CD Metcalf, SRl Collie, AW Cranny, G Hallett, C James, J Adams, Fabric-based Strain Sensors for Measuring Movement in Wearable Telemonitoring Applications. In: Assisted Living March. 2009. hi tech textile textile history

[23]Y Ohtaki, K Sagawa and HA Inooka, Method for Gait Analysis in a Daily Living Environment by Body-Mounted Instruments, JSME International Journal Series C 44 (4) (2001), pp. 1125–1132. View Record in Scopus | Cited By in Scopus (7)

[24]A. Vega Gonzalez, Continuous monitoring of upper-limb activity in a free-living environment, Archives of Physical Medicine and Rehabilitation 86 (3) (2005), pp. 541–548. View Record in Scopus | Cited By in Scopus (20)

[25]A Mazzoldi, D De Rossi, F Lorussi, EP Scilingo and R. Paradiso, Smart textiles for wearable motion capture systems, AUTEX Research Journal 2 (4) (2003), p. 199.
Tags: , ,
Pages: 1/1 First page 1 Final page [ View by Articles | List ]