What are the characteristics of woven fabrics(2)

Woven fabrics

Adjacent warp (weft) yarn on the continuous warp (weft) tissue points arranged into a diagonal line, the surface of the fabric shows a continuous diagonal weave pattern of fabric tissue. The number of yarns in a tissue cycle of twill is at least 3. Weaving twill fabric is more complex than plain fabric, at least 3 pages of heald frame. The emergence of twill fabrics marked a major development in weaving technology and fabric structure. In China, there were already fabrics with twill patterns in the Yin and Shang dynasties. Silk fabrics such as silk and damask were woven with twill and its variations. 

Twill organization is more widely used, such as cotton, wool fabrics in the khaki, beige, wada tweed, silk fabrics in the beautiful silk, etc.. Twill tissue and plain tissue compared with a larger warp (weft) floating length, and therefore in the same yarn number (count) and warp and weft density of the fabric structure is more flimsy. Configure a larger warp and weft density to get a tight structure of the fabric. Twill organization has a warp tissue points account for most of the warp twill, weft tissue points account for most of the weft twill and warp and weft tissue points equal to the double-sided twill three. The slanting direction of twill has the right slant and left slant. Generally, the twill organization is indicated by a fractional formula with an oblique arrow. The slant of the twill organization is mainly based on the composition of the twill weave pattern of the yarn in the fabric surface of the flick to choose. If the flick to the opposite direction of the weave, the slant line is clearer, and vice versa, the slant line is blurred. Therefore, with "Z" flick single yarn for warp and weft yarn, using the warp surface twill organization, should choose the left twill; using the weft twill organization, should choose the right twill.

On the basis of twill organization, we can add warp and weft organization points, change the twill direction and fly number or use both methods to evolve a variety of twill variations. 

① strengthen twill: in the twill organization based on the addition of warp, weft tissue points and become, the most common application of □ double-sided strengthen twill; 

② compound twill: generally for the organization of a larger number of cycles of twill organization, the surface of the fabric presents a set of width and depth of different twill; 

③ angle twill: change the value of the number of flies can be made to change the angle of inclination of the woven twill. Commonly used is the inclination angle greater than 45 ° organization, with a larger warp density, so that the weave twill full of steep and straight. Qiaoqiding, tweed and other combed wool fabrics are angle twill; 

④ mountain twill: by the left and right two directions of the twill arranged into a mountain-shaped weave organization); 

⑤ broken twill: by the left and right two directions of the twill arranged according to certain requirements, so that the weave twill suddenly interrupted the organization. In addition, there are also shaded twill, rhombus twill, curve twill and many others, most of which are named after the image of the weave. Twill change organization is one of the main organizations used to increase the color of the woven pattern.