The presently disclosed embodiment relates to a polyester hollow fiber having excellent sound absorption performance. The polyester hollow fiber having excellent sound absorption performance according to the presently disclosed embodiment has a hollow ratio of 27-35% relative to the cross-sectional area thereof, wherein the value of equation (1) satisfies 1.5 or more, and the hollow in the cross-section is three-lobed. In equation (1), A is the cross-sectional area of the fiber (μm^2), and P is the length of the cross-section perimeter (μm) of the fiber.

    개시된 실시예는 흡음성이 우수한 폴리에스테르 중공섬유에 관한 것이다. 개시된 실시예에 따른 흡음성이 우수한 폴리에스테르 중공섬유는 단면적 대비 27% 내지 35%의 중공률을 가지며, 하기 식 (1)의 값이 1.5 이상을 만족하고, 단면 내 중공은 3엽형이다. (1) TIFFpat00005.tif1421 상기 식 (1)에서, A는 상기 섬유의 단면적(㎛2)이며, P는 상기 섬유의 단면 둘레의 길이(㎛)이다.


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    Title :

    Polyester hollow fiber with excellent sound absorption


    Additional title:

    흡음성이 우수한 폴리에스테르 중공섬유


    Publication date :

    2021-11-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    D01D MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS , Mechanische Verfahren oder Vorrichtungen für die Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / D01F Chemische Gesichtspunkte bei der Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern , CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS