Double-woven cloth

To integrate the ultrasonic sensor to textile structures as well as to form electric circuits in the stmcmres, silver-plated nylon yarn with a linear resistance of <50 n/m and with a yam count of 312/34f x 4 dtex is used. To prevent formation of short circuits in the textile-based electric circuit, conductive yams are hidden in the stmcture. A fabric stmcmre is considered as a double-woven fabric, and conductive yarns are placed in the middle layer of the stmcmre. The set of warp yams of the upper layer are linked to the set of weft yarns from the bottom layer, and thus the two layers are held together. A four-harness satin weave is chosen for both layers. Fig. 3.2 shows the diagram representing the drawdown, threading, and lift plan of the double-woven cloth together with the 3D-graphical representation of the woven fabric stmcture. 

Figure 3.2 (a) The draft for double-woven cloth with weft stuffers and conductive yam position (b) 3D representation of the double-woven cloth. 

Air gap layer—acts as an insulating barrier, shielding the core from the heat conducted from the surface, either by the structure of the opf woven cloth or, by using a double layer of opf fabric with a felt backing to give added improvement. The latter shows better results... 

In the majority of cases they are produced by needle punching a batt of fibres (a number of layers of carded fibre web formed by means of a cross-laying mechanism) on to both sides of a woven base-cloth or scrim. This may be carried out in a continuous process or by attachment of a preformed and pre-needled batt produced in a separate operation. After tacking the fibre to the scrim, the assembly is consolidated in a secondary, more intensive needle-punching operation, usually with the aid of finer needles. This operation frequently addresses both sides of the felt simultaneously in a single double-punch process. 

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. 

Dimity di-m9-te [alter, of ME demyt, fr. ML dimitum, fr. MGk dimitos of double threat, fr. Gk di- + mitos warp thread] (1570) n. A sheer, thin, spun cloth that sometimes has cords or stripes woven in. It is used for aprons, pinafores, and many types of dress goods. 

Double cloth construction n. Two fabrics are woven in the loom at the same time, one fabric on top of the other, with binder threads holding the two fabrics together. The weave on the two fabrics can be different. 

Double weave n. A fabric woven with two systems of warp or filling threads so combined that only one is visible on either side. Cutting the yarns that hold the two cloths together yields two separate cut pile fabrics. 

Velvet fabric n. A warp-pile woven fabric with short, dense cut pile that produces a rich fabric appearance and soft texture. Two methods are used for weaving velvets. In the double-cloth method, two fabrics are woven face to face with the pile ends interlocking. A reciprocating knife cuts through these pile ends to produce two separate pieces of velvet. In the second method, pile ends are lifted over cutting wires that are inserted with the filling and that are withdrawn to cut the pile. Kadolph SJJ, Langford AL (2001) Textiles. Pearson Education, New York. 

When used in flreflghters clothing, it was found that a woven Zirpro wool fabric of high density over a bulky knitted Zirpro wool underwear fabric offered signiflcantly better protection than a single layer of a woven or knitted fabric or a double layer of a woven fabric of the same total weight. 

Pile lpl(3)l n [ME, fr. L pilus hair] (15c) (1) A fabric effect formed by introducing tufts, loops, or other erect yams on all or part of the fabric surface. Types are warp, filling, and knotted pile, or loops produced by weaving an extra set of yams over wires that are then drawn out of the fabric. Plain wires leave uncut loops wires with a razor-Hke blade produce a cut-pile surfece. Pile fabric can also be made by producing a double-cloth stmcture woven face to face, with an extra set of yam interlacing with each... 

Velvet Fabric A warp-pile woven fabric with short, dense cut pile that produces a rich fabric appearance and soft texture. Two methods are used for weaving velvets. In the double-cloth method, two fabrics are... 

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