In addition to the certain characteristics of traditional fancy yarns, the crocheted fancy yarns have the advantages of novel appearance, no hair removal and no separation.
Since the 1980s, crocheted fancy yarns have become the new darling of fabrics and fashion designers, and have gradually become the new fashion elements in the domestic and international textile market. 1. Crocheted feather yarn in crocheted fancy yarn. As the feather has a fund items: 2010 Shaoxing text of Science level college students research projects (project preparation News of: Tang Limin, E-nail:. tlmusx.edu.cn given directional distribution, highly decorative effect, made of fabric The gloss is soft, the cloth is full, the warmth is strong, and it is not easy to lose hair. The taking performance is good and has a good market prospect.
1 crocheted feather yarn spinning process principle Production process: two warp needles are used as a group, and the positions of some warp needles are vacant between the two needles. The number of needles determines the length of the feathers. The warp yarn determines the strength of the feather yarn. Generally, the nylon filament with better strength is selected. The feather is formed by the weft yarn, just like the decorative yarn in the general fancy thread, which mainly plays a decorative role. Therefore, the weft yarn is selected according to the characteristics of the desired feather. Raw materials, such as good gloss, colorful, feathers are soft or rigid. The weft needle first winds the weft yarn on the left side of the warp needle to the needle bar of the warp needle to complete the weft insertion, then rises and crosses several warp needles in the transverse direction, and then lowers the weft yarn from the right side to the needle bar of the warp needle to complete the weft insertion. Thus, when the warp needle is moved back and forth twice, the weft needle completes the weft insertion from left to right. In this way, the weft yarn is connected between two warp yarns in a continuous round-trip manner to form a yarn path like a sleeper on the railway. Finally, the weft yarn is cut by a blade, and the weft yarn originally connected between the two warp yarns is connected to the feathers respectively. On the root warp, it becomes 2 feather yarns.
2 Process parameters of crocheted feather yarn The crocheted feather fancy yarn is produced on the crochet machine by the warp knitting weft principle. The main technical parameters of the feather fancy yarn include the raw material specifications of the warp and weft yarn, the length of the feather, the density and the feather continuous or interval. Wait.
2.1 Yarn raw material According to the needle number of the warp needle, the number of warp yarns should not be too thick. If the yarn is too thick, it will not be easy to loop or take off because the yarn can not completely enter the hook. Therefore, there is a certain requirement for the fineness of the original yarn, and the strength is also relatively required. The weft yarn mainly acts as a feather and needs to be selected according to the feather design requirements. The optional range is relatively large.
2.2 Feather length The length of the feather of the feather yarn is mainly determined by the number of spaced needle slots of the two warp needles and the position of the cutter, as shown in .
2.3 Feather density Feather density is related to the warp input roller speed of the crochet machine and the yarn output output roller speed. As the yarn output roller speed decreases, the feather density gradually increases, but the speed reduction is limited because the speed is too When it is slow, the warp tension is too small and the old coil cannot be retracted and cannot be spun. The feather density is also related to the weft material. The other parameters are unchanged. The thicker the yarn, the denser the feather and the more full. However, due to the influence of the needle number of the weft thread, the thickness of the selected weft yarn should also conform to the needle number, not the thicker the better.
Feather continuous flower chain arrangement 2.4 Feather continuous spinning feather fancy yarn Whether the feathers are continuous or spaced is mainly determined by the arrangement of the flower plates on the flower board chain. For example, the length of the feather yarn process, if the feathers are to be continuous, the arrangement of the panels is as shown, if it is spaced, as shown (can be adjusted according to the interval).
Feather-spaced flower chain arrangement 3 Conclusion The feather characteristics are mainly determined by the variety, specifications and characteristics of the weft yarn, especially the gloss and color, which affects the appearance of the feather yarn.
The length of the feather is related to the spacing of the warp needles and the position of the cutter. It is also related to the elasticity of the weft yarn and the tension of the machine. Generally, the greater the elasticity and tension, the greater the recovery after being cut, and the feather is relatively short.
The feather density is related to the weft material, the output roller speed, the knitting needle, and the like. The speed of the output roller is related to the yarn tension, and the output roller speed is large, resulting in more yarn breakage.
The continuity of the feathers is related to the arrangement of the flower plates.
The control of the pre-tension tension of the warp yarn is very important, the tension is too large, and it is difficult to break the head in the process of forming a circle and retracting in the spinning process. The tension is too small, the warp yarn is easily cut by the cutter or the weft feathers are cut continuously.
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