Satin-weave fabric

Figure 6.9 An 8-harness satin weave fabric of Nextel 720 fiber (courtesy of N. Chawla)...

These values might correspond, for example, to a square-weave or symmetrical satin-weave fabric-reinforced construction. As an example in the application of the foregoing equations, the tensile stress Oi, acting on the small plate at the top is 10,000 psi, the shear stress Xi2 is 4000 psi, and the angle a is 30°. Then from Figure 8.25 ... 

Other types of woven fabrics used as filter media are the twill and satin weaves. In the twiU weave, yam is woven over two and under one for a 2/1 twill and over three and under one for a 3/1 twill weave. The twill weave fabrics allow good flow rates and do not retain particles as well as the plain weave as a result, the filters do not blind as fast as the plain weave fabric filters. In the satin weave fabrics, the yams are woven over one and under four in both directions. These types of fabrics are not very effective in retaining particles but have the best cake release characteristics therefore, the filters can be cleaned with comparative ease. Woven fabric area densities are typically in the range of 200-500 gm" ... 

Figure 21.12 4-Harness satin weave fabric. Source Reprinted from SP Systems, Newport, lOW, technical data with kind pennission.

A surface treatment that is not engaged for improved cake release purposes is the raising or napping process. This is usually applied to satin weave fabrics made with staple-spun fibres in the weft, and is designed to enhance particle collection efficiency by teasing the fibres of the staple-spun yam into a pile or nap. It will thus be appreciated that the treatment is normally applied to the reverse side of the fabric i.e. the side that does not collect the dust cake. 

If 3D fabrics have to conform to a 3D shape, then the layers have to be joined using satin weave as shown in Figure 9.45. Multilayer satin weave fabrics are drapeable and easily conform to the shape. A multilayer thick panel can be woven by joining layers using satin weave. 

Figure 2.5 A satin weave fabric woven from monofilament yarns - the warp direction is vertical. Satin weaves create smooth release surfaces with flexibility and resistance to blinding (Madison Filter).

Plain weave fabrics tend to be employed where maximum filtration efficiency is required twill weave fabrics where greater hulk and mechanical durahility are a primary concern and satin weave fabrics (particularly with monofilaments) where good discharge and blinding resistance are the primary requirements. 

The thermostamping process is dominated by the fabric architecture. Currently, most of the pure and hybrid woven fabrics used in textile composites are simple 2D fundamental weaves, that is, plain, twill and satin weaves, which are identified by the repeating patterns of the interlaced regions in the warp and weft directions. The plain weave is one of the most commonly used basic reinforcements for woven-fabric composites. In a plain-weave structure, one weft yarn goes over and under warp yarns as shown in Hg. 6.2. In a twill-weave structure as shown in Fig. 6.8a, each warp yam is woven over two consecutive weft yarns and under the following two weft yarns. The UC of a twiU-weave fabric is shown in Fig. 6.8b. The satin-weave fabric has good drapability, with a smooth surface and minimum thickness. One warp yarn is woven over N(N>2) successive weft yarns and then under one weft yarn. This weave structure is called an (N + l)-harness satin weave. The satin-weave fabric as shown in Fig. 6.9a is a 4-haraess satin-weave fabric, and the associated UC is shown in Fig. 6.9b. 

This method was also applied in the study of the influence of scouring and bleaching on the wetting behavior of slivers, yarns, and plain and satin weave fabrics [104]. In summary, the method introduced by Hsieh and Yu should be applicable for measuring contact angles between liquids and different kinds of fiber assemblies and for estimating the liquid retention behavior as well as the porosity of such fabrics. 

These values might correspond, for example, to a square-weave or symmetrical satin-weave fabric-reinforced construction. 

Satin Weave n (ca. 1883) One of the basic weaves, plain, satin, and twill. The face of the fabric consists almost completely of warp or filling floats produced in the repeat of the weave. The points of intersection are distributed evenly and widely separated as possible. Satin-weave fabric has a characteristic smooth, lustrous surface and has a considerably greater number of yarns in the set of threads, either warp or filling, that forms the face than in the other set. 

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