The selection of twist coefficient and twist direction of quilt production line The choice of spun yarn twist and twist direction of quilt production line is mainly determined by the final product's requirements for spun yarn quality. Special equipment for the textile industry on the winder. As the last process of spinning and the first process of weaving, winding is the link between the past and the next.“bridge”Therefore, it occupies an important position in the textile field.
Grinder A spinning machine that turns fiber strands into rovings. The main function is to draft and twist, and to wind the roving into a certain package to meet the processing requirements of the spinning frame. During the spinning process of the spinning frame, the semi-finished roving or sliver is drafted, twisted, and wound into a spinning machine. The combed sliver and the needle-carding machine combine the sliver, the needle row is drafted to improve the sliver structure, and the roving is further spun into spun yarn on the ring spinning frame, which is the main spinning machine.
Spinning yarns have different twist coefficients because of their different uses. Generally, the warp and weft woven fabrics are subjected to the friction of the steel box and repeated elevation deformation on the quilt production line due to the warp passing through the cylinder, warp, sizing and other processes. Therefore, the warp must have high strength and certain The elasticity of the weft yarn is larger, so the twist coefficient is larger, and the weft yarn has a smaller twist coefficient due to less processes and less weft insertion tension. Generally, the twist coefficient of the warp yarn is 10-15% larger than that of the weft yarn.
On the other hand, in terms of the appearance and pavilion feeling of the fabric, if the warp yarn floats on the surface, its twist coefficient should not be too large when it has a great influence on the appearance and feeling of the fabric surface, such as high-density poplin fabrics, the warp yarn twist Appropriately smaller, and the weft yarn twist is appropriately increased to make the weft yarn larger, the warp yarns are easy to bulge and form granular, which can improve the appearance and feel of the fabric. Hemp yarn fabric. The twist coefficient of the warp yarn should be large, so that the fabric has a smooth feeling. The yarns used for Zhou weaving are also different depending on the variety. The twist coefficient of cotton sweater yarn is lower, and the undershirt needs to have a cool feeling, so the twist coefficient should be larger.
The twist coefficient of the pile fabric is small, and the twist coefficient of the twisting yarn is also small. The twist direction of the cotton yarn produced by the quilt production line also depends on the finished product and the finished product and the needs after processing. In order to reduce the spun yarn overhaul and inconvenience in operation, general enterprises are embarrassed.
When the twist directions of the warp and weft yarns of the fabric are different, the weave of the fabric is easy to solve. In chemical fiber material blended fabrics, in order to make the fabric design have a wool-like feel, warp yarns often use various twist directions to develop special styles such as hidden grids and hidden strips.