Plain-weave filaments

Fabric, Cloth or Mat Woven strands of filament. The weave pattern used depends on the flexibility and balance of strength properties required in the warp and fill directions. Fig. 4.65 shows a plain weave in which the strength is uniform in both directions. The warp direction refers to the direction parallel to... 

For the FCVI of carbon-carbon described here, a circular carbon cloth of 4.8 cm diameter was used to prepare the preform. The carbon cloth consisted of a plain weave of T-300 fibers containing 3000 filaments per tow each filament had a diameter of... 

It is established that the barrier efficiency of the woven fabrics directly depends on the arrangement of the filaments in the yam and the construction of the woven fabric. Research indicates that a desized, scoured, and bleached plain-weave cotton fabric weighing 130 g/m finished with a natural antimicrobial agent, neem seed, showed 99.5% antibacterial activity against S. aureus (Joshi et al., 2007). It should be mentioned that neem seed is obtained from the neem tree, Azadirachta indica, which... 

The substrate of the fabric is composed of untwisted, continuous multi-filament yams such as polyester or nylon that are free to flatten out in the fabric like miniature ribbons. These flat yams have no more than the normal producers twist of one or two turns per inch. The flat yams are woven into a fabric containing forty-four warp yams per inch and thirty-two filling yams per inch in a plain weave. 

The interspacing and diameter/thickness of the yarn is often used to calculate what is termed the fabric s cover factor , meaning the actual area the solid part of the fabric covers when the fabric is laid on a surface. From a more practical sense, this is the fraction of a fabric surface area that comprises the fibres/filaments. Neglecting the very small interfibre interstices. Fig. 8.24 depicts the projected areas seen in this way for a plain-weave structure, which can be used to obtain a calculated estimate of the fabric porosity. 

As an example of fabric shearing, consider the plain-weave fabric shown in Fig. 6.2. Woven fabrics generally consist of two sets of interlaced yam components, known as warp and weft (or fill) yarns according to the yam orientation. Each yarn is a bundle of filaments (or fibers), and the yarn size is measured by the number of filaments in the yarn and the diameter of those filaments. Woven fabrics offer many advantages in terms of deformation capabilities, including dimensional stability, good conformabil-ity and deep-draw formability. Compared to unwoven-fabric composites. 

Studies on the woven fabrics using plain weaves made from high density polypropylene monofilaments were carried out using ASTM D150 standard method [46]. Four fabrics were used, each of which had different filament diameter, yam spacing, thickness and areal mass density. Each of these fabrics was kept between the capacitor plates and the corresponding volume fraction was calculated from the fabric areal density, density of the fiber and the electrode gap. The effective permittivity of the capacitor system with the fabric was calculated from the recorded capacitance value and the over-all capacitor dimensions using... 

Woven reinforcement material constructed is by interlacing fibers, yarns, or filaments to form such fabric patterns as basket, plain, harness, satin, leno weaves, scrim, etc. These different weaving patterns are used to provide different processing and/or directional properties. There are filling threads that represent threads in the so-called machine direction warp threads represent those in the transverse direction or at 90° to the filling threads. 

Morino and Matsudaira [32] had predieted the mechanieal properties and hand value of the fabric from the newly defined weave strueture parameters namely the erossing over firmness factor) and the floating yam faetor. For their study, 5.9 tex eotton yam were used for warp and 8.3 tex/24 polyester filament was used for the weft. Ten fabries with three fundamental weave namely plain, 2/2 twill and 5- harness satin are eonstmeted as mentioned below ... 

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