Non-circular cross-section synthetic fibers spun using profiled orifices. Synthetic fibers have various unique properties. However, after taking fabrics, certain performances are often inferior to natural fibers. In order to make the synthetic fiber have the advantages of wool or silk, the characteristics of the natural fiber structure are often imitated, and under the premise of not damaging the basic performance of the fiber, the spinning fluid is extruded through a specific spinning hole to form a corresponding section. Synthetic fiber, which is a physical modification method. The cross section of the fiber obtained by spinning with viscose or acrylic is not circular, but is serrated or dumbbell-shaped, but it is not shaped fiber.
The profiled fibers have triangular, pentagonal, trilobal, multilobal, dumbbell-shaped, elliptical, L-shaped, serpentine-shaped, circular hollow and irregular shaped hollows. Different types of profiled fibers have different properties. Triangular fibers have flashes that make beautiful flash yarns and coats. The pentagonal fibers have a pronounced wool feel, good pilling resistance, and can be made of high-grade silver gun coats. The five-leaf fiber is very similar to silk, and the fabric is light, soft, smooth and free of wax. It can be made into a cloth with a true silk feel and a chemical fiber. L-shaped fibers have good hygroscopicity; hollow fibers have a light specific gravity, warmth, and good hand feel. They can be used as battings or blankets.
Shaped spinning hole manufacturing. Selecting different shapes of spinneret holes can produce shaped fibers with different sections. It is also possible to use the techniques of melt-adhesion, separation of composite yarns, post-processing deformation, central blowing, composite profiled filaments, or the use of fiber surface deformations to manufacture profiled fibers.
Shaped fibers can be spun into monofilaments, multifilaments, staple fibers, fiber bundles, elastic yarns, and the like. Fabrics made from profiled fibers have a glitter and soft, smooth, bulky feel that is close to that of wool or silk. Special-shaped fibers are suitable for making various kinds of novel fabrics, artificial furs, synthetic leather backings, artificial furs, etc., and are also used in medical treatment, waste disposal and cigarette filters.
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