KR920008962B1 - Melt spinning method of polyamide fiber - Google Patents

Melt spinning method of polyamide fiber Download PDF

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Publication number
KR920008962B1
KR920008962B1 KR1019900011500A KR900011500A KR920008962B1 KR 920008962 B1 KR920008962 B1 KR 920008962B1 KR 1019900011500 A KR1019900011500 A KR 1019900011500A KR 900011500 A KR900011500 A KR 900011500A KR 920008962 B1 KR920008962 B1 KR 920008962B1
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South Korea
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steam
spinning
melt spinning
heated
polyamide fiber
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KR1019900011500A
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Korean (ko)
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KR920002834A (en
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이현우
정대진
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주식회사 코오롱
하기주
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/084—Heating filaments, threads or the like, leaving the spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

The method while preventing the surface of spinneret from staining with monomers or foreign materials during spinning, comprises: sprayin over-heated vapor whose steam pressure is 200-300 mm H2O through steam spraying holes formed inside the bottom wall of the spinning pack along the advancing direction of extruded multifilaments, while over-heated vapor is heated by passing it through the inside of the spinning block. This method improves cleaning efficiency of spinnerets, eliminates fiber entanglement caused by circulating steam and enhances working condition by lowering temp. of the spinning chamber.

Description

폴리아미드계 섬유의 용융방사방법Melt Spinning Method of Polyamide Fiber

제1도는 본 발명을 실시하기 위한 장치의 개략도.1 is a schematic diagram of an apparatus for practicing the present invention.

제2도는 본 발명 이전의 방법을 실시하기 위한 장치의 개략도.2 is a schematic diagram of an apparatus for implementing the method prior to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

1 : 방사구금 2 : 방사팩1: spinneret 2: spinneret

3 : 스피닝블록 4 : 스팀가이드링3: spinning block 4: steam guiding ring

5 : 보온용블록 6 : 배기덕트5: insulation block 6: exhaust duct

7 : 켄치챔버 8 : 압력게이지7: quench chamber 8: pressure gauge

9 : 유량조절 밸브 10 : 증기유입구9: flow control valve 10: steam inlet

11 : 인터플로어 튜브(Inter floor tube)11: Inter floor tube

12 : 권취드럼 13 : 콘 후드(Cone hood)12: winding drum 13: Cone hood

14 : 스팀분사공 15 : 히터14 steam sprayer 15 heater

본 발명은 폴리아미드의 용융방사시에 모노머나 이물질등에 의하여 구금표면이 오염되는 것을 방지하기 위하여 과열증기를 콘 후드(13)의 외벽을 따라서 구금표면으로 상승되도록 한 다음 배기덕트(6)로 배기시키는 선출원 발명인 특허출원 제89-17361호의 방법을 개량한 것이다.The present invention allows the superheated steam to rise along the outer wall of the cone hood 13 to the surface of the confinement in order to prevent contamination of the surface of the polyamide by monomers or foreign matters during melt spinning of the polyamide, and then exhausted to the exhaust duct 6. It is an improvement of the method of patent application No. 89-17361 which is a prior invention.

상기 선출원 발명은 다음과 같은 문제점이 있다. 즉,The prior application has the following problems. In other words,

첫째, 콘 후드와 히터의 무게가 무겁기 때문에(약 40Kg)설치 하는데 애로가 있으며,First, the cone hood and the heater is heavy (about 40kg), so it is difficult to install,

둘째, 콘 후드와 히터때문에 구금을 청소할 때 구금표면까지의 거리가 멀어져서 청소작업하기가 매우 불편하였으며,Second, because of the cone hood and the heater, the distance to the surface of the detention was too great to clean the detention.

셋째, 콘 후드의 외벽을 따라서 상승한 스팀이 구금표면에서 선회하기 마련이므로 이와 같은 스팀의 선회현상 때문에 사란(絲亂)을 일으키게 되고,Third, since the steam rising along the outer wall of the cone hood is turned on the surface of the detention, such a turning phenomenon of steam causes confusion.

넷째, 히터의 사용으로 인하여 방사실의 온도가 그 전보다 약 4℃ 높아져서 작업환경이 나빠진다.Fourth, due to the use of the heater the temperature of the radiation chamber is about 4 ℃ higher than before, worsening the working environment.

본 발명은 상기한 바와 같은 선출원 발명의 문제점을 해결한 것으로서, 본 발명의 콘 후드와 히터를 사용하지 않고 과열된 증기가 구금표면 부근으로 부터 유입되어서 토출되는 멀티 필라멘트의 진행방향과 함께 흐르도록 함을 특징으로 하는 바 이하 상세히 설명하면 다음과 같다.The present invention solves the problems of the above-described prior invention, wherein the superheated steam flows in the discharge direction from the vicinity of the surface of the detention without using the cone hood and heater of the present invention and flows along with the traveling direction of the multifilament. It will be described in detail below as follows.

본 발명은 제1도에 예시한 바와 같이 방사팩(2)의 하부 내벽에 스팀분사공(14)을 스팀이 멀티 필라멘트의 진행방향으로 분사되도록 하향으로 경사지게 천공시킨다.In the present invention, as illustrated in FIG. 1, the steam injection hole 14 is drilled downward on the lower inner wall of the spinning pack 2 so as to inject steam in a traveling direction of the multifilament.

이때 스팀분사공은 직경을 3mm로 하고 8개 천공시키는 것이 좋다.At this time, the steam injection hole is 3mm in diameter and it is preferable to drill 8 holes.

만약 직경이 3mm보다 적으면 스팀을 효과적으로 공급할 수 없으며 3mm보다 크면 스팀의 압력조정이 어렵다. 또 분사공의 갯수가 8개보다 적으면 스팀을 효과적으로 공급할 수 없으며 8개 보다 많으면 비 경제적이다. 스팀분사공(14)은 스팀가이드링(4)과 연통되어 있으며, 증기유입구(10)로부터 유입된 증기는 스피닝 블록(3)과 보온용블록(5)의 내부를 통과하면서 가열된 다음 스팀가이드링(4)을 거쳐서 스팀분사공(14)을 통하여 토출되는 멀티 필라멘트와 함께 진행한 다음 배기덕트(6)로 배기된다.If the diameter is smaller than 3mm, the steam cannot be supplied effectively. If the diameter is larger than 3mm, it is difficult to adjust the pressure of the steam. In addition, if the number of injection holes is less than eight, steam can not be effectively supplied, more than eight is uneconomical. Steam injection hole 14 is in communication with the steam guide ring (4), the steam introduced from the steam inlet 10 is heated while passing through the inside of the spinning block (3) and the thermal insulation block (5) and then the steam guide Proceeds with the multifilament discharged through the steam injection hole 14 via the ring 4, and then exhausted to the exhaust duct (6).

본 발명에서 과열증기의 분사압력은 200~300mm H2O로 하는 것이 좋다.In the present invention, the injection pressure of the superheated steam is preferably set to 200 ~ 300mm H 2 O.

분사압력이 너무 낮으면 응축수가 발생하여 절사원인이 되며, 너무 높으면 오히려 사란을 일으키는 원인이 된다.If the injection pressure is too low, condensate will occur and cause cutting. If it is too high, it will cause turbulence.

본 발명은 상술한 바와 같이 콘 후드와 히터를 사용하지 않기 때문에 이것을 사용하는데 따르는 선출원 발명의 문제점을 해소할 수 있으며, 또 과열증기가 분사된 다음 토출되는 멀티 필라멘트와 같은 방향으로 진행하기 때문에 종래처럼 증기의 선회현상도 방지할 수 있다.Since the present invention does not use the cone hood and the heater as described above, it is possible to solve the problem of the prior application according to the use of the same, and because it proceeds in the same direction as the multifilament discharged after the superheated steam is discharged, as in the prior art. It can also prevent steam turning.

[실시예 1~3][Examples 1-3]

상대점도 2.4인 폴리아미드를 익스투루더에서 용융하고 방사구금(구금공 직경 : 0.3mm, 구금공 수 : 26개)을 통해 토출시키고 제1도에 표시한 장치를 시용하여 수증기를 각각 200mm H2O, 250mm H2O, 300mm H2O 압력으로 사출방향으로 분사 시키고 밑으로 내려온 기류를 흡입 배기덕트(6)을 통해 배기시켰다. 그리고 토출된 필라멘트를 통상의 방법으로 냉각, 연신, 권취 하였다.Polyamides with a relative viscosity of 2.4 were melted in an extruder, discharged through spinnerets (0.3 mm in diameter, 26 in number of holes), and 200 mm H 2 was used in the apparatus shown in FIG. Injected at a pressure of O, 250 mm H 2 O and 300 mm H 2 O in the injection direction, and the airflow descending was exhausted through the intake exhaust duct (6). The discharged filaments were cooled, stretched, and wound in a conventional manner.

[비교예 1~2][Comparative Examples 1 and 2]

과열수증기의 압력을 각각 150mm H2O, 350mm H2O로 하고 기타는 실시예 1과 동일하게 제조 하였다.The pressure of the superheated steam to 150mm H 2 O, 350mm H 2 O , and each other was prepared in the same manner as in Example 1.

[비교예 3~4][Comparative Examples 3-4]

실시예 1 과 같은 폴리아미드 수지를 제2도에 표시한 장치를 사용하여 수증기를 각각 10mm H2O, 200mm H2O의 압력으로 분사시켜 배기덕트(6)을 통해 배기시켰다. 그리고 토출된 필라멘트를 통상의 방법으로 냉각, 연신, 권취 하였다.Of Example 1, was sprayed at a pressure of such a polyamide resin by the use of the apparatus shown in FIG. 2 H 2 O vapor 10mm, 200mm H 2 O each was exhausted through the exhaust duct (6). The discharged filaments were cooled, stretched, and wound in a conventional manner.

Figure kpo00001
Figure kpo00001

Claims (2)

방사팩의 하부내벽에 형성시킨 스팀분사공으로부터 과열증기를 토출되는 멀티 필라멘트의 진행방향으로 분사시키며, 과열증기는 스피닝블록의 내부를 통과 시켜서 가열되도록 함을 특징으로 하는 폴리아미드계 섬유의 용융방사 방법.Melt spinning of polyamide fiber characterized in that the superheated steam is injected in the traveling direction of the multi-filament discharged from the steam injection hole formed in the lower inner wall of the spinning pack, the superheated steam is heated by passing through the inside of the spinning block Way. 제1항에 있어서, 분사되는 스팀압력이 200~300mm H2O임을 특징으로 하는 폴리아미드계 섬유의 용융방사 방법.The melt spinning method of claim 1, wherein the injected steam pressure is 200 to 300 mm H 2 O.
KR1019900011500A 1990-07-27 1990-07-27 Melt spinning method of polyamide fiber KR920008962B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0971056A1 (en) * 1998-07-08 2000-01-12 Lurgi Zimmer Aktiengesellschaft Process and apparatus for steam transport through at least one round spinnerets shaft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0971056A1 (en) * 1998-07-08 2000-01-12 Lurgi Zimmer Aktiengesellschaft Process and apparatus for steam transport through at least one round spinnerets shaft

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