Twisting is the relative rotation of the two sections of the sliver. At this time, the fibers in the sliver that are parallel to the axis of the sliver are tilted into spirals. For short fibers, twisting is mainly to increase the strength of the yarn. The twisting of the filaments can both increase the strength of the yarn and produce some effect. The amount of yarn twisted and the combination of yarn twist and twist in the fabric have a large impact on the appearance and performance of the product.

The indicators of the twisted nature include: the degree of twisting, the twist coefficient, and the direction of twisting.

The twist yarn is twisted and twisted to make a twist. The number of twists per unit length of yarn is called twist. China's cotton yarn adopts a special number system, that is, the number of turns within the length of 10 cm yarn; combed yarn and chemical fiber filaments adopt the metric system to measure twist, that is, the number of turns per meter; and There is also an inch system twist rate expressed in inches per inch.
捻 coefficient. Twist degree can not be used to compare the degree of twisting of different coarse yarns, because the same twist, the thicker slivers have more fibers than the fine slivers. In actual production, the twist factor is often used to indicate the degree of twisting of the yarn. The twist factor is a relative value of the degree of twisting of the yarn as a function of the line density. It can be used to compare the degree of twisting of different coarse yarns. The twist factor can be calculated from the twist of the yarn and the linear density of the yarn.

Towards. Twisting refers to the direction in which individual yarns in a single yarn appear to twist when the yarn is twisted. It is divided into two types, Z and S. After twisting, the twisting direction of the yarn is inclined from the lower right corner to the upper left corner, and the direction of inclination is the same as that of the middle of the “S”; the twist direction of the yarn is inclined from the lower left corner to the upper right corner, and the tilt direction is “ The middle of Z" is the same as Z or backhand. In general, single yarn is often used for Z, and strands are used for S.

The twists and turns of the strands are expressed in the order of 捻 。. For example, a single yarn is a Z-twisted yarn, a first-twisted yarn is a S-twisted yarn, and a re-twisted yarn is a Z-twisted yarn. The twisted yarn is represented by ZSZ.

The twist direction of the yarn has a great influence on the appearance and feel of the fabric. Using the twist direction of the warp and weft yarn and the weave of the fabric can woven the fabrics with different appearances, feels and other styles.

For more content, please follow this site

French Terry Fabric

Custom French Terry Fabric,French Terry Fabric,French Terry Knit Fabric,Heavy Cotton French Terry Fabric

SHAOXING XIANCHENG TRADING CO.,LTD , https://www.xcxssfabric.com