What is the twisted yarn? - - - - - - Textile information - Textile net - Textile integrated service provider

Since the twist yarn is another important new type of yarn. Since the twist, the key components of the spinning machine is a pair of rotating and reciprocating traverse slub roller. Article two roots output by a front roller, one end is held by front roller and the other end is held by converging hook, in between the holding point, must be a twist roller by false twist, twist roller made on both sides of the article must be produced in the opposite direction of twist. Due to continuing slub roller rotary and reciprocating traverse, the two roots of the cyclical variations on section & ndash; — Z twist, untwisted and S twist zone. When two twist to the periodic variations of yarn twist to the same area, when they met on rendezvous hook, because of the action of the respective untwisting torque occurred since the twisting effect, make the two root yarn twist together in this area. When two root yarn twist to the opposite area when they met on rendezvous hook, untwisting torque different direction to make two article yarn reverse to the opposite direction, not occur since the twisting effect, formation of untwisted area. When a piece of gauze of the yarn twist zone and another root of untwisted area, when they met in the weaker since the twisting effect, form the weak twist zone, so the twist yarn is twisted to the periodic variations of double strands of yarn. Twist to twist yarn, and the one of single yarn twist to the contrary, fibers in the yarn nearly parallel to the axis. Since the twisted yarn for twist to change alternately, reflective inconsistent. Due to no twist and twist irregularity is bigger, so the strength of the yarn is low. Before use, usually in a normal after twist yarn machine, twist to the same, but the twist irregularity larger twisting the twist yarn or the stranding line. Mainly has since came line ( ST line) And add came from came line ( STT line) 。 The latter is to use the lines to came in came on board again adding a came, came to make the wires came to the basic trend. There are 2 st line and ( 2ST) T line, this is two groups from 90 line came to phase difference & deg; The configuration of the merger of four strands of wire, or sleeping in line with weak came on board. ( 圣) 2 line is 2 times since came line, or 3 line 2 times since came. With a filament instead of the single yarn line came a root, can form STM lines and ( STM) T line. This kind of line is able to adapt to the characteristics of fine needle warp knitting machine. On the basis of the above can also be derived from other varieties, such as color and yarn spun melange line, etc. Since MAO came line feels strong, soft, full, round performance is good, can be used in the production of weft knitting polyester wool-like fabric and yarn dyed fabric, such as knitting cloth, etc. Woven yarn ( Especially the warp) Came from came to use add lines, because rely on additional add came from came line came to make strong and has good abrasion resistance, resistant to all reed scratches and looms shedding motion through frequent stretching, and came to the consistent, because the whole root yarn can improve fabric surface gloss. Additional cover with degrees in offset to the leaf area of came, came online will be a short period of parallel double since no issues section. ( Double yarn each still has the very strong came degrees) , appear this kind of situation is called & other; Dual & throughout; When additional came degree level is called dual came to spend. Add came from came online too many dual section, causes on fabric surface of visual & other; And the bad & throughout; Illusion. Additional came as a result, the actual level should be slightly more than the degree of dual came. But when additional came through, can make the yarn, fabric is a hard, rough detrimental to feel and sense of wool type, curved edge grinding levels decline. Since came spinning machine for 4 ~ 5 head/commonly, have break automatic stop device, the joint operation is easier. Therefore, easy to transform varieties, suitable for small batch and many varieties, deep in the production of colored spun yarn. But since came not supply single yarn spinning, chemical fiber products limited to wool-like type. Since came line came degrees due to not perfect consistent, easy to form a film on fabric surface.