Successive warp (weft) tissue points on the adjacent warp (weft) yarns are arranged in diagonal lines, and the fabric surfaces are woven with continuous slash marks.
Twill The number of yarns that organize an organization to circulate is at least 3. Woven twill fabric Bipping fabric complex, at least 3 page full box. The appearance of twill fabrics marks a significant development in weaving technology and fabric structure. China has had twill fabrics in the Shang Dynasty. The Han in silk fabrics are woven with twill and their variations. Twill tissue is widely used, such as khaki, Serge, gabardine and silk fabrics in cotton and wool fabric. Compared with plain weave, twill weave has a larger warp (weft) length, so the fabric structure is softer under the same yarn number (number) and latitude and longitude density. A compact fabric can be obtained by allocating a larger latitude and longitude density. Twill tissue has a majority of the warp-surface twill, weft tissue points accounted for the majority of the latitude and longitude of the two-sided twill three. The diagonal of the twill has a right and a left oblique points. The general twill tissue is expressed by the fractional and the oblique arrows. The diagonal direction of twill is mainly based on the selection of the yarn on the fabric surface which is formed by diagonal weave. If it is opposite to the weaving pattern, the slash is clearer, whereas the slash is blurred.
Therefore, the use of "Z" single yarn as Warp, weft, using the surface twill organization, should choose left oblique, when using weft twill organization, you should choose right oblique. On the basis of twill tissue, the multiple twill change tissues can be evolved by adding warp and weft tissue points, changing the diagonal direction, flying number or simultaneously adopting two methods. ① reinforced twill: in twill tissue based on the addition of warp and weft tissue points, the most commonly used are-double-sided reinforced twill; ② composite twill: Generally a large number of tissue circulation of the twill tissue, the fabric surface presents a group of width and depth of different twill; ③ angle twill: Changing the number of flying numbers can make the tilt angle of the weaving slash change. Commonly used is the inclination of more than 45 ° tissue, with a larger warp, so that the texture slash full steep. Qiao Koding, Gong and other combed wool fabric is the angle twill; ④ Chevron: A structure formed from a diagonal line of about two directions into a mountain-shaped weave; ⑤ broken twill: A diagonal line by the left and right two of the line to the required arrangement, so that the texture slash suddenly interrupted the organization. In addition, there are shadow twill, rhombic twill, curved twill and many other, most of the texture image named. The twill change organization is one of the major organizations used to increase the texture pattern.