For some infrequently used Backpack webbing For our customers and novices, it is also a problem to distinguish between warp and weft. So how to distinguish the colorful ribbon is simple: if the identified fabric has a selvage, the yarn direction parallel to the selvage is the warp direction, and the other side is the weft direction.
Sizing is the direction of warp, and non sizing is the direction of weft. Generally, the fabric with high density is in warp direction, while the fabric with low density is in weft direction. For fabrics with obvious reed marks, the direction of reed marks is the warp direction. For half thread fabrics, the ply direction is usually the warp direction and the single yarn direction is the weft direction.
If the single yarn knapsack webbing fabric has different yarn twist, the Z twist direction is the warp direction, and the S twist direction is the weft direction. If the warp and weft yarn count, twist direction and twist degree of the ribbon are not very different, the warp direction is the one with even yarn lines and good luster. If the yarn twist of the fabric is different, most of the twist is in the warp direction, and those with small twist are in the weft direction. For towel fabrics, the yarn direction of the loops is in the warp direction, and those without loops are in the weft direction. Sliver fabric, the sliver direction is usually in the warp direction.
If a fabric has a system of yarns with many different characteristics, this direction is the warp direction. For leno fabrics, the direction of twisted yarn is warp, and the direction of untwisted yarn is weft.
Among the interwoven fabrics made of different materials, cotton wool or cotton hemp interwoven fabrics, cotton is warp yarn; In wool interwoven fabric, silk is warp yarn; In wool cotton interwoven fabric, silk and cotton are warp yarns; In natural silk and spun silk interwoven fabric, natural thread is warp yarn; In the interwoven fabric of natural silk and rayon, natural silk is the warp yarn. Due to the wide range of uses and varieties of webbing, the requirements for fabric raw materials and structure are also varied, so the judgment should be based on the specific conditions of the fabric.
