Weaving pattern

Plain weave Another name for square weaves. See weave patterns. 

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... 

There are several types of mesh available, and these are identified by mesh thickness, density, wire diameter and weave pattern. Table 4-9 identifies most of the commercial material now available. The knitted pads are available in any material that can be formed into the necessary weaves, this includes stainless steels, monel, nickel, copper, aluminum, carbon steel, tantalum, Hastelloy, Saran, polyethylene, fluoropolymer, and glass multi-filament. 

Stratum corneum normal thickness (basket weave pattern), epidermis thinned, atrophic, flattened rete ridges... 

Fabrics. These are characterized by o the weave pattern or crossing scheme of the warp (lengthwise) and weft (perpendicular to the warp) yarns... 

Table I lists the typical physical characteristics of the new and old membranes, including a Nepton CR-61 on 9-ounce dynel which was substituted for the 9-ounce glass in production a year or two earlier. Figure 2 shows the electrical resistance of the 4-ounce and 9-ounce membranes. From Table I, it can be seen that the reduction in thickness from 30 mils to 23 mils in both the cation and anion membranes led to reduction in Mullen burst strength to 140 p.s.i. The electrical through resistance (Figure 2) was decreased to approximately two thirds for the cation membranes and about one half for the anion membrane. The Nepton CR-61 9-ounce glass membrane had a much lower resistance than the 9-ounce dynel, because of a difference in the weave pattern in the cloth, so that there was actually little if any difference between the 4-ounce dynel cation and the 9-ounce glass cation in electrical through resistance. However, the superior resistance of the dynel backing to mechanical failures leads to its selection.

Commercial fabrics made from sheep s wool have a variety of names, depending on the weave pattern and the weight of the fabric. These include cavalry twill, challis, felt, flannel, gabardine, khaki, tweed, serge, sharkskin, velour. Cassimere is a fabric made of sheep s wool, not cashmere. It is of moderate weight and used most often for making men s suits. 

Fabric weave. Fabric weave pattern can influence the properties such as drape-ability, tightness, etc. of a fiber product. The quantities of relevance in this regard are pick count, fabric areal weight, etc. 

Different weaving patterns of these materials will also vary cloth performance. Plain, twill and satin weaves are three of the most common. Their effect on cloth performance is shown in Table 2. 

Table 2. Effect of Weave Pattern on Cloth Performance ...

There are many types of weaving patterns for woven fabrics and the four basic types are plain weave, twill weave, satin weave, and plain reverse Dutch weave (Svarovsky 1990) as shown in Figure 22.66. The filtration performances of the four types of weaves are shown in Table 22.13. 

Performance of Woven Fabrics by Different Weave Patterns in Descending Order... 

Braid surfaces at the failure point and a spot away from that area were analyzed. The external and internal surfaces of the braid at the failure area were mildly discolored because of oxidization, similar to the effect of overheating a metallic object. Optical microscopy and scanning electron microscopy showed no disturbance to the weave pattern, no deformation of metal wires, and no surface defects, based on the comparison of defective and normal areas. Energy dispersive x-ray (EDX) showed similar concentrations of iron (Fe), nickel (Ni), chromium (Cr), and molybdenum (Mo) in both areas, indicating stainless steel. A small amount of silicon (Si) was detected that was attributable to environmental contamination such as dust and dirt. 

Figure 9-38. Joined octahedra sharing faces and edges (a) NbjS crystal, after Ref. [9-26] (b) analogy from Formosan basket weaving pattern, after Ref. [9-34].

The fabric design (weaving pattern, fibre density, etc.) is determinant for the POF bend. The radius of fibre curvature in the fabric is expressed by the radius of the circle that passes through three points, X, Y and Z, that are shown in Figure 8.8. 

Figure 8.18 shows a LEF sample based on the developed weave pattern (Figure 8.15) connected to a laser diode light source (Dilas). 

A LEF based on a commercial POF has been developed and tested. It is based on a new weave pattern made from a simple weave (satin weave) and designed to produce a large diffuser (20 cm of useful width) with minimised heterogeneity of hght intensity and optimised intensity of illumination. 

The decision of which method to use is dependent upon several factors. Holt melt film processes are faster and cheaper, but certain resin formulations cannot be handled in this way, and hence solution methods have to be used. The solution dip method is often preferred for fabrics as the need to squeeze hot-melt and film into the interstices of the fabric can cause distortion of the weave pattern. 

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. 

Bias cut Cutting material at 45° from the weave pattern. 

Four-harness satin weave Also called crowfoot satin because the weaving pattern resembles the imprint of a crow s foot. It is a... 

Gauze weave This is an example of a special weave pattern where two warp threads are taken around the weft threads, to the right and left alternately. A wide variety of fabrics can be held together more or less closely by points (gauze weave) with plain links. These patterns produce a decorative effect used mainly in veils. 

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