نتایج جستجو برای: cotton yarn

تعداد نتایج: 23174  

2016
R. Yin X. M. Tao B. G. Xu

Twisting is an important process to form a continuous yarn from short fibres and to determine the structure and properties of the resultant yarn. This paper proposes a new theoretical model of yarn dynamics in a generalized twisting system, which deals with two important phenomena simultaneously, that is, twist generation and twist propagation. Equations of yarn motion are established and the b...

2013
Lukas VOJTECH Radoslav BORTEL Marek NERUDA Milos KOZAK

The electrocardiogram (ECG) is one of the most important parameters for monitoring of the physiological state of a person. Currently available systems for ECG monitoring are both stationary and wearable, but the comfort of the monitored person is not at a satisfactory level because these systems are not part of standard clothing. This article is therefore devoted to the development and measurem...

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...

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...

Journal: :Tekstilna industrija 2023

This study aims to investigate the effect of alkalization and chemical coupling methods on surface adsorption properties waste cotton cotton/polyester yarns. The simple cheap alkali treatment was performed using 10% 18% NaOH solution, while method involved combining yarns fly ash, sodium carboxymethyl cellulose alginate as binders. Morphological characteristics unmodified modified were analyzed...

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...

Journal: :Sustainability 2022

Since textile waste recycling is a global challenge, there an emerging need to explore this research direction due the little knowledge about recycling. This study aimed property of yarns produced from recycled textile/cotton fiber blends for proportion optimization and check whether they can be used denim fabric production. The properties virgin cotton spun on open-end having 4.5 Ne were inves...

Journal: :Journal of Natural Fibers 2023

Semi-combed yarn represents a type of ring-spun produced by modifying the typical carded and combed manufacturing process. Carded is inferior in quality, while yarns are not cost efficient. The semi-combed has therefore emerged as an alternative to fully facilitate reasonable quality-cost compromise. This paper reports two techniques associated features cotton same count. One process involves s...

Journal: :Nucleation and Atmospheric Aerosols 2021

This work mainly focuses on the development of a novel type chemically activated electrodes from cotton yarn by carbonization and chemical activation. Chemical activation is employed in order to obtain high specific capacitance, energy power density. The zinc oxide was prepared sol – gel method pH should be range 9 11. ZnO/CCY electrode it stirred with magnetic stirrer. performance evaluated us...

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