The method of judging fabric latitude and longitude

1, according to the sizing and no sizing to distinguish: sizing is the longitude, not sizing is the latitude.

2, according to the edge of the cloth to distinguish: parallel with the fabric side of the direction of the yarn will be the direction of the other side is the latitude.

3, according to the density of the fabric to distinguish: the general density of the fabric is always the longitude, the small density has always been the latitude.

4, according to the scar to determine: a clear scar of fabric, the scar direction is the direction of the warp.

5. For half-line fabrics, usually the direction of the strands is the warp direction, and the single yarn direction is the weft direction.

6. If the yarn formation of a single yarn fabric is different, the Z direction is the longitudinal direction and the S direction is the latitude direction.

7, sliver fabrics, the sliver direction is usually in the direction of the meridian.

8. For towel-type fabrics, the direction of the yarns of the terry loops is the warp direction, and those of the terry loops are the latitude direction.

9. Leno fabrics, where the twisted yarns are in the warp direction, and the twisted yarns are in the weft direction.

10. If the number of warp and weft yarns of the fabric does not differ greatly, the yarn is even and the luster is better. If the yarns of the fabric have different yarn twists, the larger the degree of twist is, In the longitudinal direction, the longitudinal direction is small; if the fabric has a system with multiple different special numbers, the direction is the longitudinal direction.

11. In the cross-fabric of different raw materials, generally cotton or cotton intertwined fabrics, cotton as warp yarns; wool intertwined fabrics, silk as warp yarns; wool and cotton intertwined fabrics, then silk, cotton as warp yarns; natural silk and silk In silk interlacing fabrics, natural yarns are warp yarns; in natural yarns and rayon yarn interlacing fabrics, natural yarns are warp yarns. Due to the wide variety of uses of fabrics and the variety of fabrics, the requirements for fabric materials and organizational structures are also varied. Therefore, when judging fabrics, they must be determined according to the specific conditions of fabrics.