warp polyester brush fabric loop velvet schoolbag velcro surface accessories composite edge pocket tricot tie-dyed 全涤经编拉毛布圈绒书包魔术贴面辅料可复合包边口袋边纶布扎染

Twill fabric is typically woven using a 2/1↖ weave. The twill pattern is clearly visible on the front side, while the back side is less distinct. Both warp and weft threads use single yarns with similar yarn density; the warp density is slightly higher than the weft density. Fabrics woven with fine yarns are called fine twill, and those woven with medium yarns are called coarse twill. The raw materials used include pure cotton, viscose, and polyester-cotton blends. Twill fabrics are tight and thick, with a soft handfeel. A small amount is sold commercially, mainly used for bedding and underwear. Most are processed into colored or patterned fabrics. Colored fine twill is used for uniforms, sportswear, and clothing linings. Patterned twill is used for women’s and children’s clothing. Large-patterned twill can be used for bed covers. Khaki-twill fabric uses a specific weave structure. Varieties are classified based on the yarns used: wire card (both warp and weft using twisted yarns), half-wire card (warp twisted yarns, weft single yarn), and yarn card (both warp and weft single yarns). Wire card is woven using a 2/2↗ weave, with both sides having clear twill patterns; it is also known as double-sided card. Half-wire card is woven using a 3/1↗ weave. Yarn card uses a 3/1↖ weave. Both half-wire card and yarn card are single-sided cards. The main raw materials for wire card include pure cotton and polyester-cotton. This fabric has a tight, thick structure with distinct patterns, making it durable and strong. After dyeing and processing, it is mainly used for winter and spring clothing, as well as for trench coats and raincoats. Yarn card is often used for outer garments and workwear.