1, warp, warp, warp density - fabric length dire […]
1, warp, warp, warp density - fabric length direction; the yarn is called warp yarn; its number of yarns within 1 inch is dense (warp density);
2, weft, weft, weft density - fabric width direction; the yarn is called weft yarn, the number of yarns in 1 inch is weft density (weft density);
3, density - used to indicate the number of yarns per unit length of the woven fabric, generally the number of yarns within 1 inch or 10 cm, the national standard specifies the number of yarns within 10 cm to indicate the density, but Textile companies are still accustomed to using the number of yarns within 1 inch to indicate density. As commonly seen, "45X45/108X58" means that the warp weft yarns are 45, respectively, and the warp and weft density is 108, 58.