KR930005092B1 - Manufacturing process of polyester fiber by the method of ultra super high spinning speed - Google Patents

Manufacturing process of polyester fiber by the method of ultra super high spinning speed Download PDF

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Publication number
KR930005092B1
KR930005092B1 KR1019910012389A KR910012389A KR930005092B1 KR 930005092 B1 KR930005092 B1 KR 930005092B1 KR 1019910012389 A KR1019910012389 A KR 1019910012389A KR 910012389 A KR910012389 A KR 910012389A KR 930005092 B1 KR930005092 B1 KR 930005092B1
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South Korea
Prior art keywords
cooling
cooling air
temperature
spinning speed
manufacturing process
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KR1019910012389A
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Korean (ko)
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KR930002553A (en
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최승호
류윤호
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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
    • D01D5/088—Cooling 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
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters

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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)
  • Artificial Filaments (AREA)

Abstract

The method for the spinning speed of about 5,000 m/min: sets up three cooling chambers in a way that temperature of cooling air of each chamber increases gradually from the first chamber placed just below the spinneret to the third chamber, i.e. 10-25 deg.C, 25-Tg deg.C and Tg-120 deg.C respectively, and so that cooling air is fed obliquely in the running direction of the filaments, i.e. 25-65≰. The method solves the high-tension of winding, unevenness of physical properties, and no good spinnability faced often in conventional spinning methods by improving cooling method.

Description

초고속방사법에 의한 폴리에스터사의 제조방법Manufacturing method of polyester yarn by ultra high speed spinning

제1도는 본 발명의 제조공정 예시도.1 is an illustration of the manufacturing process of the present invention.

제2도는 종래방법의 제조공정 예시도.2 is an illustration of a manufacturing process of the conventional method.

제3도는 본 발명과 종래방법을 대비한 설명도.Figure 3 is an explanatory diagram in contrast to the present invention and the conventional method.

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

1 : 스핀너렛 2 : 냉각실1: Spinneret 2: Cooling chamber

A,B,C : 부분냉각실 3 : 냉각공기분배판A, B, C: Partial cooling chamber 3: Cooling air distribution board

4 : 풍량조절댐퍼(Damper) 5 : 오일링장치4: Air volume control damper (Damper) 5: Oil ring device

6 : 보온판 7 : 히터6: heat insulation plate 7: heater

본 발명은 5,000m/min 이상의 방사속도로 폴리에스터사를 제조함에 있어서 냉각방법을 개선하여 종래방법의 문제점이었던 고권취장력, 물성불균일 및 방사성불량을 개선한 초고속방사법에 의한 폴리에스터사의 제조방법에 관한 것이다.The present invention is to improve the cooling method in producing polyester yarn at 5,000 m / min or more spinning speed in the manufacturing method of the polyester yarn by the ultra-high-speed spinning method to improve the high winding tension, property non-uniformity and radioactive defects which was a problem of the conventional method It is about.

종래의 방법은 제2도에 도시한 바와 같이 한개의 냉각실로 부터 냉각공기가 냉각공기분배판에 대하여 직각방향으로 방출되는 사에 공급되기 때문에 구금직하에서 급냉이 이루어져서 폴리머의 넥킹포인트(necking point)가 구금으로 부터 500mm 부근에서 발생하게 된다.In the conventional method, as shown in FIG. 2, since the cooling air is supplied from a single cooling chamber to a yarn discharged at right angles to the cooling air distribution plate, quenching is performed under detention, so that the necking point of the polymer is achieved. It occurs around 500mm from the detention.

그 결과 폴리머의 유동이 더 이상 발생하지 않아서 넥킹 포인트 이후로 부터 와인더에 권취될 때까지 사와 공기와의 마찰이 급격하게 상승하게 되어 권취장력이 커지게 되고, 이로 인한 물성 불균일과 방사성불량을 초래하게 되었다.As a result, the flow of polymer no longer occurs, and the friction between the sour and the air rises sharply from the necking point until the winder is wound up, thus increasing the winding tension, resulting in non-property and radioactive defect. Was done.

본 발명은 종래방법의 상술한 바와 같은 문제점을 해결한 것으로서 이하 예시도면에 의하여 상세히 설명하면 다음과 같다.The present invention solves the problems as described above of the conventional method and will be described in detail with reference to the following drawings.

본 발명은 5000m/min 이상으로 폴리에스터사를 고속방사할 때, 제1도에 예시한 바와 같이 냉각실(2)을 A, B 및 C 냉각실 3개로 구분하고, 각 냉각실마다에 온도조절용 히터(7)를 설치하며, 냉각공기분배판(3)의 각도를 25°~65°로 설치하여서 냉각공기를 송출하였다.In the present invention, when the high-speed spinning of the polyester yarn at 5000m / min or more, as shown in Figure 1, the cooling chamber 2 is divided into three A, B and C cooling chambers, for each temperature control The heater 7 was provided, and the cooling air distribution board 3 was set at an angle of 25 ° to 65 ° to send cooling air.

본 발명에서는 냉각실(A)의 온도를 10~25°로, 냉각실(B)의 온도를 25℃~Tg℃로 하고, 냉각실(C)의 온도를 Tg°~120℃로 하였다.In this invention, the temperature of the cooling chamber A was 10-25 degrees, the temperature of the cooling chamber B was 25 degreeC-Tg degreeC, and the temperature of the cooling chamber C was Tg degree-120 degreeC.

본 발명에서, 냉각실(A)의 온도가 10℃보다 낮으면 급속냉각이 되지만 연신이 어려우며, 25℃보다 높으면 냉각효과를 얻을 수 없다.In the present invention, if the temperature of the cooling chamber (A) is lower than 10 ℃ rapid cooling but stretching is difficult, if higher than 25 ℃ cooling effect is not obtained.

또 냉각실(B)의 온도가 25℃보다 낮으면 열처리효과가 없으며, Tg℃보다 높으면 냉각효과가 없다.If the temperature of the cooling chamber B is lower than 25 ° C, there is no heat treatment effect. If the temperature of the cooling chamber B is higher than Tg ° C, there is no cooling effect.

또 냉각실(C)의 온도가 Tg℃보다 낮으면 열처리효과가 없으며 120℃보다 높으면 사의 일부가 용융하여 융착하므로 사절이 많이 발생하게 된다.In addition, if the temperature of the cooling chamber (C) is lower than Tg ℃, there is no heat treatment effect, if higher than 120 ℃ part of the yarn is melted and fused to cause a lot of trimming.

본 발명에서 냉각공기분배판은 그 설치각도가 25°보다 적으면 냉각효과가 적고 설치상에 어려움이 있으며, 65°보다 크면 사조의 유동이 커지고 권취장력이 증가하므로 좋지 않다.In the present invention, the cooling air distribution plate has a low cooling effect and difficulty in installation when its installation angle is less than 25 °, and when it is larger than 65 °, the flow of thread is increased and the winding tension is not good.

또 본 발명에서는 냉각실의 총길이를 ℓ이라고 할 때 각 냉각공기분배판의 길이는 1/4ℓ~1/2ℓ사이로 하는 것이 좋으며 가장 좋기로는 1/3ℓ이다.In the present invention, when the total length of the cooling chamber is 1 L, the length of each cooling air distribution plate is preferably between 1/4 L and 1/2 L, most preferably 1/3 L.

만일 상기조건을 벗어나게 되면 냉각효과가 저하된다.If the above condition is exceeded, the cooling effect is lowered.

본 발명은 상술한 바와 같이 방출되는 사가 구금직하로 부터 3단계에 걸쳐서 낮은 온도로 부터 차츰 높은 온도의 냉각공기로 냉각되고, 또 냉각공기가 사의 진행방향쪽으로 취부되기 때문에 모노필라멘트의 내, 외층간의 폴리머구조를 균일하게 할 수 있으며, 냉각공기가 권취방향으로 작용하기 때문에 권취기로 부터의 상승기류를 감소시킬 수 있어서 권취장력을 떨어뜨릴 수 있다.According to the present invention, since the yarn discharged as described above is cooled from a low temperature to three stages from a low temperature, the cooling air is gradually cooled to a high temperature, and the cooling air is mounted in the direction of the yarn. The polymer structure can be made uniform, and since the cooling air acts in the winding direction, the rising air flow from the winding machine can be reduced, thereby reducing the winding tension.

[실시예 1~6 및 비교예 1~8][Examples 1-6 and Comparative Examples 1-8]

폴리머의 고유점도가 0.65인 폴리에틸렌테레프탈레이트를 방사온도 295℃, 모세공직경 Φ0.2mm, 모세공이 36개, 토출량은 최종원사가 75 데니어가 되도록 조정하고 켄칭챔버의 각 부위별 온도 및 냉각공기 분배판의 각도는 표 1과 같이 변경하면서 제조하였다.Polyethylene terephthalate having an intrinsic viscosity of 0.65 was adjusted to a spinning temperature of 295 ° C, capillary diameter of Φ0.2mm, capillary holes of 36, and the discharge amount to 75 deniers of the final yarn. Was prepared while changing as shown in Table 1.

그 결과는 표 1과 같다.The results are shown in Table 1.

[표 1]TABLE 1

(단, ◎ 매우양호, ○ 양호, △보통, × 불량)(However, ◎ very good, ○ good, △ normal, × poor)

Claims (3)

5,000 m/min 이상의 방사속도로 폴리에스터사를 제조함에 있어서, 냉각실을 3개로 구분하여서 방사구금직하부로 부터 3단계에 걸쳐서 가장 낮은 온도로 부터 점차적으로 높은 온도의 냉각공기를 부여하며, 냉각공기가 필라멘트의 진행방향과 비스듬하게 영향을 미치도록 함을 특징으로 하는 초고속방사법에 의한 폴리에스터사의 제조방법.In manufacturing polyester yarn with a spinning speed of 5,000 m / min or more, the cooling chamber is divided into three sections and the cooling air is gradually supplied from the lowest temperature in three stages from the bottom of the spinneret. Method of producing a polyester yarn by the ultra-fast spinning method characterized in that to affect the direction of the filament obliquely. 제1항에 있어서, 냉각공기의 온도가 1단계에서는 10~25℃, 2단계에서는 25℃~Tg℃, 그리고 3단계에서는 Tg℃~120℃임을 특징으로 하는 초고속방사법에 의한 폴리에스터사의 제조방법.The method of claim 1, wherein the temperature of the cooling air is 10 ~ 25 ℃ in the first stage, 25 ℃ ~ Tg ℃ in the second stage, and Tg ℃ ~ 120 ℃ in the third stage . 제1항에 있어서, 냉각공기의 송출각도가 25°~65°임을 특징으로 하는 초고속방사법에 의한 폴리에스터사의 제조방법.The method of claim 1, wherein the blowing angle of the cooling air is 25 ° ~ 65 °.
KR1019910012389A 1991-07-19 1991-07-19 Manufacturing process of polyester fiber by the method of ultra super high spinning speed KR930005092B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010029197A (en) * 1999-09-30 2001-04-06 조민호 Queching apparatus for high multifilament yarn

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114481372B (en) * 2020-10-23 2024-03-01 中国石油化工股份有限公司 Method for recovering solvent in fiber spinning process and fiber spinning system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010029197A (en) * 1999-09-30 2001-04-06 조민호 Queching apparatus for high multifilament yarn

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