A kind of melt spinning flocking device

Abstract

The invention provides a melt spinning flocking device which comprises a spray nozzle filled with a melt, wherein a spray mouth of the spray nozzle is made of a conductive metal and is downwards arranged at the top of a closed box body; fiber spray nozzles are uniformly distributed in the circumferential direction below the spray mouth of the spray nozzle; the fiber spray nozzles are communicated with pumping devices through pipelines; fiber feeding devices are further arranged in the pipelines; conductive metal nets are arranged at the opening parts of the fiber spray nozzles; the conductive metal nets and the spray mouth of the spray nozzle are electrically connected with a cathode and an anode of an electrostatic generator respectively; an outlet allowing spinning to flow out is formed in the bottom of the closed box body; and a winding drum for winding the spinning is arranged below the outlet. According to the melt spinning flocking device, due to the fact that the melt sprayed out from the spray nozzle is not condensed at the preliminary stage, natural fiber is glued with the melt by virtue of the electrostatic force and the spraying force of the fiber spray nozzles, the natural fiber is flocked outside the spinning, and the performance of synthetic fiber is effectively improved.

Description

technical field [0001] The invention relates to the field of melt spinning, in particular, a melt spinning flocking structure in which natural fibers are embedded on synthetic fibers. Background technique [0002] The main varieties of synthetic fibers such as polyester, nylon and polypropylene are produced by melt spinning. The main features of melt spinning are high winding speed, no need for solvents and precipitants, simple equipment, and short process flow. Fiber-forming polymers that have a melting point below their decomposition temperature and can be melted to form a thermally stable melt can be formed by this method. The preparation of chemical fibers is usually made of natural or synthetic polymers or inorganic substances into a spinning melt or solution, then filtered, metered, extruded from a spinneret (plate) into a liquid stream, and then Solidified into fibers. The fiber at this time is called primary fiber, and its mechanical properties are very poor. It m...

AI Technical Summary

Problems solved by technology

[0003] Because the chemical fibers produced by melt spinning have the advantages of bright colors, soft texture, drape crisp, smooth and comfortable, they are widely used. However, although the fibers produced by melt spinning have many advantages, their disadvantages are also obvious. Its breathability Performance, fiber cohesion and thermal insulation are inferior to natural fibers

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