Great bright polyester fiber, spinneret plate for great bright polyester fiber spinning and preparation method of great bright polyester fiber

Abstract

The invention discloses a great bright polyester fiber, a spinneret plate for great bright polyester fiber spinning and a preparation method of the great bright polyester fiber. The section of the great bright polyester fiber is in a special cross shape, and the preparation method enables the great bright polyester fiber to have a flat diamond super bright characteristic and a moisture absorptionand sweat releasing characteristic. According to the preparation method, the sections of spinneret holes in the used spinneret plate are in special cross shapes, and the length of the transverse spinneret holes of the special cross-shaped spinneret holes and the length of the longitudinal spinneret holes of the special cross-shaped spinneret holes are different, so that the prepared polyester fiber has the flat diamond super bright characteristic of polyester fiber prepared through linear spinneret holes and the moisture absorption and sweat releasing characteristic of polyester fiber preparedthrough conventional special cross-shaped spinneret holes, wherein the length of transverse spinneret holes of the conventional special cross-shaped spinneret holes and the length of longitudinal spinneret holes of the conventional special cross-shaped spinneret holes are the same; and through the method, yarn having the double characteristics can be made without subsequent plying, so that the production procedures and the production cost are reduced, and the method is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of chemical fiber materials, in particular to a bright polyester fiber and a spinneret used for spinning the same and a preparation method thereof. Background technique [0002] my country is a big country of chemical fiber. The production and usage of chemical fiber have reached 60% of the world, of which more than 80% is polyester, which is the general trend of chemical fiber technology development. The brand-new production concept oriented has been deeply rooted in the hearts of the people, and functional and differentiated polyester fibers will become the mainstream of the future market. Currently on the market, the developed functional bright polyester fibers have single functions, poor production stability, and low post-processing efficiency, which cannot meet the market's requirements for multi-functional fiber textiles. [0003] Because the "one" shaped polyester filament has excellent characteristic...

AI Technical Summary

Problems solved by technology

If both characteristics are available at the same time, it can only be mixed in the subsequent processing, which increases the production process, increases the production cost, and due to the poor control of the mixing uniformity, the effect of the two characteristics at the same time cannot be well highlighted.

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