T-shaped polyester fiber spinneret plate

Abstract

The invention discloses a T-shaped polyester fiber spinneret plate which is balanced in pressure, high in deformability rate and good in spinning effect. The T-shaped polyester fiber spinneret plate comprises a body and a plurality of small spinneret holes formed in the lower end face of the body, the section of each small spinneret hole is in a T shape, and the small spinneret holes are arranged in a radiating shape, center lines of the T-shaped longitudinal small holes pass through the center of the body, the length ratio of the T-shaped longitudinal small holes and the horizontal small holes is 1.2 to 1.5, melt guiding holes are formed in the upper portions of the small spinneret holes, and melt guiding grooves are connected to the upper ends of the melt guiding holes.

Description

technical field [0001] The invention relates to melt spinning equipment, in particular to a spinneret suitable for T-shaped polyester fiber production. Background technique [0002] Ordinary polyester fiber has poor wearing performance, and it is easy to cause the skin to feel stuffy and airtight, so it cannot meet people's requirements for wearing comfort of chemical fiber textiles. By changing the cross-sectional structure of the fiber, fine grooves are formed on the surface of the fiber, and through the wicking effect, good moisture absorption and moisture conduction functions are produced, thereby improving the air permeability of the fabric and improving the comfort of the fabric. The function of the spinneret is to transform the viscous polymer melt or solution into a fine flow with a specific cross-section through the micropores, and to form filaments after being solidified by a coagulation medium such as air or a coagulation bath, so the spinneret The cross-sectiona...

AI Technical Summary

Problems solved by technology

The function of the spinneret is to transform the viscous polymer melt or solution into a fine flow with a specific cross-section through the micropores, and to form filaments after being solidified by a coagulation medium such as air or a coagulation bath, so the spinneret The cross-sectional shape of the spinneret micropores is the key to determine the cross-sectional shape of the fiber. Although the moisture conductivity of ordinary cross-shaped, Y-shaped, T-shaped, triangular, and H-shaped fibers has been significantly improved compared with ordinary fibers, the effect It is still not ideal, and the more complicated the cross-sectional shape of the spinneret microholes, the more difficult it is to spin, especially the ordinary spinneret cannot guarantee the consistency of the pressure in each spinneret microhole, which will affect the spinning stability.

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