Twill weave fabric woven fabrics

Figure 2.4 A 2/2 twill weave fabric woven from woollen spun yarn - the warp direction is vertical. Twill weaves create bulky media with good mechanical properties and flexibility, but the hairiness of staple fibres can cause cake release problems (Madison Filter).

Chinchilla cloth n. A heavy, twill weave, filling-pile fabric with a napped surface that is rolled into little tufts or nubs. The material is frequently double faced with a knitted or woven, plain or fancy back. Chinchilla cloth is used primarily in coats. The term is also used to refer to a knitted woolen fabric having a napped surface. 

When the twilled weave is woven with multiple wires in both warp and shute, it results in a strong, dense fabric known as braided, basket or multibraid weave. The mesh openings are irregular because the multiple shute wires have a tendency to twist around each other. 

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. 

Plain- and twill-weave woven fabrics (Table 5.6) are used as reusable OR surgical gowns (Aibibu et al., 2006). A microbial barrier effect has been achieved by using microfilament polyester as well as by controlling the pore size in the woven structure. 

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" ... 

Ticking ti-kig [ tick] (1649) n. A durable, closely woven fabric used for covering box springs, mattresses, and pillows. Ticking may be woven in a plain, satin, or twill weave, usually with strong warp yarns and soft filling yarns. 

Woven fabrics with fray resistant constructions (a) shows combination of plain, twill and Leno stitches among the first 6 threads on the left, threads 1 and 3 show plain weave, 2 and 4 show 3/1 twill weave, and 5 and 6 show Leno stitches and (b) shows the S-shaped locked structure. 

In weaving, the warp and weft yams are commonly referred to as picks and ends. The interlacing of the picks and ends gives a coherent structure, and the repeating pattern of the interlacing is referred to as the weave of the fabric. Woven geotextiles are commonly plain weave, but twill weave and leno weave are also used. ... 

Fignre 27.1 Modified twill weave pattern sample used in the woven jumpsuit with an on-fahric network (left) and a sample twill pattern similar to the one used to make the fabric (right). 

The parts shown in Fig. 6.6 were made using (a) Twintex balanced plain-weave fabric and (b)Twintex unbalanced twill-weave fabric. Twintex is a woven fabric comprised of commingled fiber glass/polypropylene yams (Fig. 6.7) and is designed for the manufacture of composite parts using a... 

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. 

Obvious uniformity is found in simple form with plain-weave metal cloth of light gauge wire. As the gauge of the wire becomes heavier and the weave is changed to a twilled or Dutch-type weave, we have a more elaborate medium that is generally used for filtration. The nature of the holes is more complex and more difficult to recognize with the unaided eye. Woven fabrics become more complicated due to the flexible nature of yams, and therefore it is more difficult to try to define the size of the hole in a woven fabric. The same is tme for media with random stmcture, such as felts, paper, fibrous and porous material. 

There are several available weaves of woven wire. Some of these weaves lead the product to be called woven fabric. The basic types of weaves of wire cloth, which are woven for filtration purposes, are plain, twilled, plain Dutch, twilled Dutch, plain reverse Dutch, duplex (twin warp) plain Dutch, Betamesh and braided (basket of multibraid)—see Figure 8.1. 

Magniez et al. (2013) have demonstrated a method to produce piezoelectric woven fabrics from melt-spun PVDF fibres, which were spun using a Busschaert bi-component extmder. The PVDF fibres were assembled with conductive fibres and were integrated into various woven stmctures, such as plain weave and 2x2 twill weave. A non-conducting nylon yam was used as insulation between two electrodes to prevent short-circuiting. The warp yams were PVDF, and the weft yams were silver-coated nylon. The fabrics were tested for electrical output using a 70 N impact force at a 1 Hz frequency, and a maximum output of 6 V was produced. 

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