Fabric grades are determined based on the quality of raw materials and yarns. High-grade fabrics typically use premium natural fibers or combed synthetic fibers, with even yarn, appropriate twist, few breaks, a soft hand feel, and a natural luster. Low-grade fabrics may use short fibers, inferior materials, or mixed fibers, resulting in uneven yarn, pilling, or breakage. The purity of the raw materials and fiber length directly affect the fabric's comfort, durability, and appearance.
Grading also depends on the weaving process and fabric density. High-grade fabrics are precisely woven, with tightly packed warp and weft yarns, a stable structure, uniform thickness, and a smooth surface. Low-grade fabrics may have defects, uneven density, a rough surface, or be prone to deformation. The weaving process directly affects the fabric's durability, drape, and the texture of the finished garment.
Fabric grades are also affected by finishing and functional treatments. High-grade fabrics, after dyeing, printing, softening, wrinkle-resistant, and waterproofing processes, not only have a refined appearance and uniform color but also possess certain functionalities. Low-grade fabrics may have uneven finishing or subpar results. Based on the combined properties of raw materials, weaving, and finishing, fabrics are generally classified into high-grade, medium-grade, and ordinary grades, used for different levels of clothing, home textiles, and industrial applications.