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Plain weave is the most common and tightest of basic weave structures in which the filling threads pass over and under successive warp threads and repeat the same pattern with alternate threads in the following row, producing a chequered surface. They do not ravel easily but tend to wrinkle and have less absorbency than other weaves. The plain weave is variously known as Calico or Tabby weave. It is the simplest of all weaves having a repeat size of 2.
A draft indicates the number of heald shafts used to produce a given design and the order is which warp ends are threaded through the heald eyes of the heald shaft. The principle of drafting (i.e. putting of ends on different healed shafts) is that ends which work in different order require separate heald shafts. To keep matters simple, we can also say that the ends that work alike are put on the same heald shaft.
Woven fabrics are made by using two or more sets of yarn interlaced at right angles to each other. Much variety is produced by weaving.
The process of producing a fabric by interlacing warp and weft threads is known as weaving. The machine used for weaving is known as weaving machine or loom. Weaving is an art that has been practiced for thousands of years. The earliest application of weaving dates back to the Egyptian civilization. In order to interlace wrap and weft threads to produce a fabric, the basic mechanisms necessary for any type of looms are Primary, Secondary and Auxiliary mechanisms.
Weaving is the process of making fabrics by interlacing the threads lengthwise and widthwise commonly known as warp and weft in a regular order. The operation is performed in a machine called a loom. Two sets of yarns are interlaced, almost always at right angles to each other. One, called the warp, runs lengthwise in the loom; the other, called the filling, weft or woof, runs crosswise. The raising and lowering sequence of warp threads in various sequences give many possible weave structures.
Textile substrates are formed from yarns or fiber webs by several techniques including weaving, knitting, tufting, and nonwoven formation. Composites of textile substrates are formed by bonding two fabrics together by use of an adhesive to form a bonded substrate or backed substrate or by application of cut fibers to an adhesive-coated substrate to form a flocked substrate.