Production method and device of coarse denier filament fibers

Abstract

The invention discloses a production method and device for coarse denier filament fibers. The method comprises following steps: a fiber melt in a molten state is fed into spinning equipment, spinneretguide holes for conveying the fiber melt are formed in a spinneret plate of the spinning equipment, and each spinneret guide hole is provided with multiple closely adjacent spinneret micropores whichare located at an outlet of the spinneret plate; the fiber melt in the molten state is sprayed out through the spinneret micropores to form multiple fiber units in the molten state; the multiple fiber units still in the molten state are subjected to air blast cooling outside the spinneret plate, so that the multiple fiber units are bonded to one another under blowing of cooling air to form parallel filaments with low bonding surfaces; the parallel filaments are processed, and the coarse denier filament fibers are obtained. According to the production method and device, the problems of waxy sense, aurora effect and unwinding of tows are solved, energy consumption and production cost are reduced, and the problems that nylon has large coarse denier monofilament diameter, is difficult to cooland has low spinning speed are solved completely.

Description

technical field [0001] The invention relates to the technical field of spinning, in particular to a method and device for producing coarse denier filament fibers. Background technique [0002] The spinnability of filaments during winding, unwinding and weaving largely depends on the cohesion of the filaments, that is, the binding force between individual filaments. If the tow has no cohesion force or the cohesion force is very small, it is easy to cause overlapping, stripping and edge collapse during winding. These problems not only reduce the efficiency and product quality, but also affect the normal production. Usually the cohesion of the tow is obtained by twisting and sizing. However, such a processing procedure is long and expensive. At present, interlacing is the most ideal production technology to replace traditional processing methods such as twisting and sizing. It can be easily combined with other processes, such as spinning, stretching, deformation and doffing,...

AI Technical Summary

Problems solved by technology

[0004] However, due to the need to use compressed air in the production process of interlaced yarn, which increases the production cost, and is limited by its own processing method, it is also very difficult to add network to coarse denier (especially coarse denier and few holes) tow

[0005] In addition, the coarse denier monofilament fiber has a large diameter and is difficult to cool. The existing technology can only be produced by water cooling, and the winding speed is less than 200 m / min. The overall production method is characterized by low efficiency, high energy consumption, and poor quality.

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