نتایج جستجو برای: wool yarn

تعداد نتایج: 6637  

2003
Ning Pan

This study of woven fabric strength begins by focusing on the effects of the crossing points, where warp and weft yarns interlace with each other to form a fabric, towards the ultimate fabric tensile strength. When a fabric is under uniaxial or biaxial tension, the yarn-yarn interactions at the crossing points are found to consist of two components, a pressure-independent adhesive component and...

2009
E. Zhou D. Mollenhauer E. Iarve

Textile composites are widely used in automotive, naval, and aerospace industries. The variation of the topology of the textile structure will affect the performance of the composite. The yarn micro-geometry is determined by 1) the textile process, such as weaving, braiding, etc. and 2) the composite forming process, such as vacuum bagging, resin transfer molding, etc. In this paper, we present...

1999
Nigel Johnson

ANY MATERIAL COMPOSED OF FIBRES IS A TEXTILE, AND THIS DEFINITION covers an extremely wide range of products in everyday use. Worldwide, over 35 million tonnes of textile fibre is consumed annually, ending up not only as clothing, upholstery, bed linen and carpets, but also in such items as ropes, seat belts, nets, road stabilisation mats, drainage pipes and tents. It is not surprising that, wh...

2005
Vivek Prasad Shankam Narayana

SHANKAM NARAYANA, VIVEK PRASAD. Novel Method for Dynamic Yarn Tension Measurement and Control in Direct Cabling Process. (Under the directions of Dr. William Oxenham, Dr. Abdelfattah Seyam and Dr. Edward Grant). Yarn tension control is an important parameter for quality and efficiency in textile processes. It has a significant influence on productivity in various processes such as winding, twis...

2015
Chi-wai Kan Chui-ha Au Silvana Allodi

Cotton knitted fabrics were manufactured with different yarn types (conventional ring spun yarn and torque-free ring spun yarn) with different fibre types (combed cotton and combed Supima cotton) and yarn fineness (Ne30 and Ne40). These fabrics were then dyed with three types of dye (reactive, direct and sulphur dye) with three dye concentrations (0.1%, 1.0% and 5.0% on-weight of fabric (owf)) ...

2015
Yongliang Liu B. Todd Campbell Chris Delhom Vikki Martin

High volume instrumentation (HVITM) measurement is a primary and routine tool of providing fiber properties to cotton researchers. There have been considerable studies designed to derive yarn quality from acquired fiber quality data by various means, including HVI. There is also of desired information about the comparison of yarn quality within a cotton cultivar or among the cultivars, as such ...

Journal: :علوم و تکنولوژی پلیمر 0
مهدی نوری

the nylon and nylon/lycra yarns were coated with electrically conductive polymers such as polyaniline and polypyrrole, via chemical polymerization process. electrical conductivity of the coated yarns was measured at variousstrain levels using two-point probe technique and their strain sensitivities were studied. the results showed that, electrical conductivity of the coated yarns decreased with...

H. Nosraty, M. Kabganian and Ali A. A Jeddi,

Air-jet weaving is an advanced weaving method with high efficiency and productivity. It is one of the most widely used methods of weaving in the world. In air-jet filling insertion, the motion of weft yarn is caused by friction between weft yarn and air blown through nozzle. After declamping and subjecting the yarn to air stream, its motion is not active but very complicated and influenced by ...

2015
Hongxu Wang Paul J. Hazell Krishna Shankar Evgeny V. Morozov Juan P. Escobedo

In this paper, details of the experimental work to characterise the tensile properties of a UHMWPE single yarn are presented. The yarn specimens were extracted from a plain woven fabric made of Spectra 1000 fibres, and a gripping method which could prevent yarn slippage and ensure the failure occurs in the gauge section was employed. Tensile tests were conducted at three strain rates of 3.3×10,...

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