With the development of science, synthetic fiber technology has also made significant progress. Synthetic fibers are widely used in industrial production such as textiles and clothing due to their outstanding shaping effect, high strength, good elasticity, and strong wear and corrosion resistance. In the production process of synthetic fibers, the melt is sprayed out from the spinning holes on the spinning plate to form primary fibers, which are then processed into finished synthetic fibers through subsequent processes. The existing spinneret used for producing nylon fibers has circular spinning holes, and the fibers produced from the circular holes have a solid structure inside, arranged tightly, with few hydrophilic structures between molecules, resulting in low moisture regain, poor moisture absorption and dyeability, and a smooth surface. When light shines on the outside, it simply forms diffuse reflection, resulting in poor luster and difficulty in meeting people's needs. It is particularly unsuitable for producing interior fabrics for cars and airplanes. In addition, in the existing production of nylon, in order to give the newborn fibers a specific color, it is usually done by adding color masterbatch in the slicing melt extrusion screw. The existing color masterbatch injection equipment mainly includes the slicing melt extrusion screw and the color masterbatch addition equipment located in front of the slicing melt extrusion screw.

The nylon yarn production equipment mainly includes a slicing melting extrusion screw (I) arranged in sequence from top to bottom, a spinning plate (3) with spinning holes (2), a side blowing air conditioner (4), an oil cooling device (5), and a winding device (6). Its feature is that a colored masterbatch variable frequency injector (7) is installed before the slicing melting extrusion screw (1); The nozzle hole is in a straight shape. Its feature is that the color masterbatch variable frequency injector mainly consists of a housing (8), a feeding port (9), an extrusion screw (10), a driving motor (11), and a variable frequency device (12). The feeding port is set on the housing, the extrusion screw is set inside the housing, the driving motor is connected to the extrusion screw for transmission, and the variable frequency device is connected to the driving motor.

By using a color masterbatch frequency converter injector, the color masterbatch can be injected with frequency conversion according to practical production requirements or production status. The amount of injected color masterbatch can be adjusted according to changes in speed, thereby effectively controlling the color of artificial fibers and improving the color uniformity of nylon fibers. With the increase of production speed, the injection speed can be accelerated, thereby improving production power while ensuring quality; In addition, the spray holes of its spinneret are in a straight shape, and the fibers with a straight cross-section sprayed out can have outstanding water absorption and dispersion effects due to the capillary phenomenon of the groove structure on the surface after being bundled. It has strong moisture absorption and is not easy to diffuse reflection on the surface, with a bright luster and outstanding natural like effect. The nylon fibers produced can be used to produce interior fabrics for automobiles and airplanes.

Article source: Nylon colored yarn

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