melt-blown die head

The present invention produces a non-woven fabric for a filter of a melt-blown type capable of forming a branched flow path unit of a geometric progression (a,ar,ar^2,ar^3, ...) having at least a 3^th term in which an initial term (a) is 1 as the inlet and a geometric ratio (r) is 2, and one converg...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: CHOI, JONG HO
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:The present invention produces a non-woven fabric for a filter of a melt-blown type capable of forming a branched flow path unit of a geometric progression (a,ar,ar^2,ar^3, ...) having at least a 3^th term in which an initial term (a) is 1 as the inlet and a geometric ratio (r) is 2, and one convergence flow path unit, which is extended to a separation direction of a plurality of orifices in a state of being connected between an outlet of flow paths of the final n^th term among flow paths of the branched flow path unit and the plurality of orifices, in a die head part which is arranged between an inlet formed in a die head which is a core and the plurality of orifices. The present invention relates to the die head in which the flow paths of the branched flow path corresponding to each term excluding a first term are evenly arranged with the inlet interposed therebetween. The present invention provides a high-quality mask filter. 본 발명은, 멜트 블로운 방식의 필터용 부직포를 생산하는데 있어 핵심인 다이헤드에 형성된 입구와 복수개의 오리피스 사이에 배치된 다이헤드 부위에, 초항(a)이 상기 입구로서 1이고, 공비(r)가 2이며, 적어도 3번째 항을 가진 등비수열(a,ar,ar2,ar3,...)의 분기유로부과 그리고 분기유로부의 유로들 중에서 최종 n번째 항의 유로들의 유출구와 상기 복수개의 오리피스 사이에 이들과 유통한 상태에서 상기 복수개의 오리피스의 이격방향으로 뻗은 하나의 수렴유로부를 형성하되, 첫번째 항을 제외한 항들 각각에 해당하는 분기유로부의 유로들이 상기 입구를 사이에 두고 균등하게 배치되게 한 다이헤드에 관한 것이다.