KR100240414B1 - Method for producing polyester drawyarn - Google Patents

Method for producing polyester drawyarn Download PDF

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Publication number
KR100240414B1
KR100240414B1 KR1019940014642A KR19940014642A KR100240414B1 KR 100240414 B1 KR100240414 B1 KR 100240414B1 KR 1019940014642 A KR1019940014642 A KR 1019940014642A KR 19940014642 A KR19940014642 A KR 19940014642A KR 100240414 B1 KR100240414 B1 KR 100240414B1
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KR
South Korea
Prior art keywords
stretching
thermal
present
polyester
yarn
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KR1019940014642A
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Korean (ko)
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KR960001242A (en
Inventor
한재성
박한용
박충환
Original Assignee
구광시
주식회사코오롱
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Priority to KR1019940014642A priority Critical patent/KR100240414B1/en
Publication of KR960001242A publication Critical patent/KR960001242A/en
Application granted granted Critical
Publication of KR100240414B1 publication Critical patent/KR100240414B1/en

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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/227—Control of the stretching tension; Localisation of the stretching neck; Draw-pins
    • 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
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • 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
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

본 발명은 횡연신법으로 폴리에스테르연신사를 제조할때 제1단연신시에 균일연신되도록 하여서 조업성이 우수하고 물성이 균일한 산업용 폴리에스테르 연신사를 제조하는 방법임.The present invention is a method for producing an industrial polyester stretched yarn having excellent operability and uniform physical properties by making it uniformly stretched during the first stage stretching when the polyester stretched yarn is manufactured by the transverse stretching method.

본 발명은 제1열연신장치와 제2열연신장치에서 1단연신할때 제1열연신장치에 근접설치한 연신핀에 사조를 통과시켜서 연신이 균일해지도록 함을 특징으로 하는 방법임.The present invention is a method characterized in that the stretching is made uniform by passing the thread through the drawing pin installed in close proximity to the first thermal stretching apparatus when the first thermal stretching apparatus and the second thermal stretching apparatus in the first stage stretching.

본 발명은 1단연신이 균일하므로 이후의 다단연신시에 모우나 절사가 없으며 랩발생도 감소될 수 있다.In the present invention, since the single-stage stretching is uniform, there is no hair loss or cutting in subsequent multi-stage stretching, and the occurrence of lap can be reduced.

Description

폴리에스테르연신사의 제조방법Manufacturing method of polyester stretched yarn

제1도는 본 발명의 요부공정개략도.1 is a schematic diagram of main parts of the present invention.

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

1 : 제1열연신장치 2 : 제2열연신장치1: first thermal stretching apparatus 2: second thermal stretching apparatus

3 : 연신핀3: stretching pin

본 발명은 고강력 폴리에스테르연신사의 제조방법에 관한 것으로서, 구체적으로는 횡연신법으로 산업용 폴리에스테르연신사를 제조함에 있어서 연신점을 균일하게 하여서 물성편차가 없는 폴리에스테르연신사를 제조할 수 있도록 한 것이다.The present invention relates to a manufacturing method of high-strength polyester stretched yarn, specifically, in the production of industrial polyester stretched yarn by the transverse stretching method to make the polyester stretched yarn without physical property deviations by making the stretching point uniform. It is.

종래의 횡연신법에 의한 폴리에스테르연신사의 제조방법은 제1도에 예시한 바 있는 제1열연신장치와 제2열연신장치 간의 선속도 차이에 의하여 1단연신이 되도록 한 다음에 다시 다단연신을 하여 제조하는 방법이었는 바, 이 방법은 제1열연신장치의 고뎃롤과 제2열연신장치의 고뎃롤 사이에서 연신점이 불균일해지기 때문에 2단 연신시에 절사 등이 많이 발생하며, 또 제3열연신장치(도시하지 않았음)에서 랩(wrap)의 발생빈도가 높아져서 연신조업성이 불량해질 뿐만 아니라 물성이 균일한 사를 제조할 수 없었다.In the conventional method of producing a polyester drawn yarn by the lateral stretching method, the single drawing is performed by the linear speed difference between the first and the second drawing devices illustrated in FIG. In this method, since the stretching point becomes uneven between the high roll of the first thermal drawing device and the high roll of the second thermal drawing device, a lot of cutting occurs during the two-stage drawing. The frequency of occurrence of wraps in a thermal stretching apparatus (not shown) is increased, and not only the drawability is poor, but also yarns with uniform physical properties cannot be manufactured.

본 발명은 이와 같은 문제점을 해결한 것으로서, 본 발명은 횡연신장치를 사용하여 폴리에스테르미 미연신사를 연신함에 있어서 각 필라멘트들의 연신점이 균일해지도록 함을 특징으로 하는 것인 바 이하 예시도면에 의하여 상세히 설명하면 다음과 같다.The present invention has solved such a problem, the present invention is characterized in that the stretching point of each filament is uniform in stretching the polyester non-drawn yarn using a lateral stretching device by the following drawings It will be described in detail as follows.

제1도는 본 발명의 요부공정을 나타내는 개략도로서 1은 제1열연시장치, 2는 제2열연신장치이고, 3은 3개의 원주형 핀으로 구성된 연신핀이다.1 is a schematic diagram showing the main process of the present invention, where 1 is a first hot drawing apparatus, 2 is a second thermal drawing apparatus, and 3 is a drawing pin composed of three cylindrical pins.

연신핀(3)을 구성하고 있는 3개의 원주형 핀(3a)(3b)(3c)는 진행하는 사조와의 마찰에 의하여 쉽게 자전할 수 있도록 되어 있으며 그 표면은 마찰계수가 극히 적은 세라믹코팅이 되어 있다.The three cylindrical pins 3a, 3b and 3c constituting the stretching pin 3 can be easily rotated by friction with the moving thread, and the surface has a ceramic coating having a very low coefficient of friction. It is.

본 발명은 고유점도 0.80~0.83인 폴리에스테르를 500~700m/분으로 방사하여 권취한 다음, 상기 미연신사를 1단연신할때 제1열연신장치(1)와 연신핀(3)의 원주형 핀(3c)(3a)(3b)를 순차적으로 통과시킨 다음에 제2열연신장치(2) 사이에서 3.0~4.5 배로 연신함을 특징으로 한다.The present invention is wound by spinning the polyester having an intrinsic viscosity of 0.80 to 0.83 at 500 to 700 m / min, and then the columnar form of the first thermal stretching device (1) and the stretching pin (3) when the unstretched yarn is stretched in one step The pins 3c, 3a and 3b are sequentially passed, and then stretched by 3.0 to 4.5 times between the second thermal stretching apparatuses 2.

본 발명은 사조가 종래의 제1열연신장치(1)와 제2열연신장치(2) 사이에서 연신핀(3)을 통과하면서 연신점이 고정되기 때문에 제1단연신시에 연신이 균일해져서 이후 다단공정에서 모우, 절사와 랩발생이 감소된다.According to the present invention, since the stretching point is fixed while the thread passes between the conventional first thermal drawing device 1 and the second thermal drawing device 2, the drawing point is fixed. In the process, wool, cuts and laps are reduced.

본 발명에서 원주형 핀(3a)(3b)(3c)의 직경은 모두 같으며 10~30mm이다.In the present invention, the diameters of the columnar pins 3a, 3b, and 3c are all the same, and are 10 to 30 mm.

만일 직경이 10mm 미만이면 연신점고정의 효과가 없으며 30mm를 초과하면 연신을 원활하게 할 수 없다. 바람직하기로는 20~30mm 이다.If the diameter is less than 10mm, there is no effect of fixing the draw point, and if it exceeds 30mm, the stretching cannot be smoothed. Preferably it is 20-30 mm.

또 본 발명에서 연신핀(3)은 제1열연신장치(1)의 마지막롤로부터 10~20 cm 이내의 거리에 설치하여야 한다.In addition, in the present invention, the drawing pin (3) should be installed at a distance within 10 ~ 20 cm from the last roll of the first thermal drawing device (1).

만일 20cm를 초과하면 연신점고정이 되지 않고 연신점이 불균일해지며 10cm 보다 적으면 연신핀(3)의 역할을 할 수 없다.If it exceeds 20cm, the stretching point is not fixed and the stretching point becomes uneven. If it is less than 10cm, the stretching pin (3) cannot act.

바람직하기로는 10~15mm이다.Preferably it is 10-15 mm.

[실시예 및 비교예][Examples and Comparative Examples]

극한점도 0.98(30℃에서 6 : 4중량비의 페놀/테트라클로로에탄 혼합용액으로 측정)인 폴리에틸렌테레프탈레이트를 용융방사하고 방사속도 600m/분으로 하여 520 데니어 192 필라멘트인 미연신사를 일단 권취한 후 제1도의 횡연신기에서 표 1의 조건으로 연신핀을 설치하고 1단연신배율은 4.0배, 2단연신배율은 1.5배, 온도는 각각 95℃, 125℃로 하여 연신, 권취하였다.Melt-spun polyethylene terephthalate with an ultimate viscosity of 0.98 (measured with a 6: 4 weight ratio phenol / tetrachloroethane mixed solution at 30 ° C), and then unwound untwisted yarn having 520 denier 192 filaments at a spinning speed of 600 m / min. In the 1 degree transverse stretching machine, the drawing pin was installed in the conditions of Table 1, and the 1st draw ratio was 4.0 times, the 2nd draw ratio was 1.5 times, and the temperature was 95 degreeC and 125 degreeC, respectively, and it extended and wound up.

[표 1]TABLE 1

제조된 사의 물성과 조업성을 평가한 결과는 표 2와 같다.The results of evaluating the properties and operation of the manufactured yarn are shown in Table 2.

[표 2]TABLE 2

Claims (3)

폴리에스테르 미연신사를 횡연신법으로 폴리에스테르연신사를 제조함에 있어서, 제1열연신장치(1)와 제2열연신장치(2)에서 1단연신시킬때 제1열연신장치(1)와 제2열연신장치(2)사이에 설치된 연신핀(3)을 통과시킴을 특징으로 하는 폴리에스테르연신사의 제조방법.In manufacturing polyester stretched yarn by transverse stretching of polyester unstretched yarn, the first thermal drawer 1 and the first thermal drawer 1 and the second thermal drawer 2 A method for producing a polyester drawn yarn, characterized by passing through a drawing pin (3) provided between the second thermal drawing device (2). 제1항에 있어서, 연신핀(3)은 제1열연신장치(1)의 마지막롤로 부터 10~20 cm의 위치에 설치함을 특징으로 하는 폴리에스테르연신사의 제조방법.The method according to claim 1, wherein the drawing pin (3) is installed at a position of 10 to 20 cm from the last roll of the first thermal drawing device (1). 제1항에 있어서, 연신핀(3)은 3개의 원주형 핀(3a)(3b)(3c)로 구성되어 있고 그 직경이 10~30mm 임을 특징으로 하는 폴리에스테르연신사의 제조방법.The method according to claim 1, wherein the stretching pin (3) is composed of three cylindrical pins (3a) (3b) (3c) and has a diameter of 10 to 30 mm.
KR1019940014642A 1994-06-24 1994-06-24 Method for producing polyester drawyarn KR100240414B1 (en)

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KR100240414B1 true KR100240414B1 (en) 2000-01-15

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980019782A (en) * 1996-09-03 1998-06-25 이명환 Manufacturing method of polyester posture twisted yarn

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0268327A (en) * 1988-09-03 1990-03-07 Kichi Hashimoto Monofilament for brush, its production and rotary brush produced by using same
JPH0299608A (en) * 1988-10-03 1990-04-11 Mitsubishi Rayon Co Ltd Production of precursor for producing carbon fiber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0268327A (en) * 1988-09-03 1990-03-07 Kichi Hashimoto Monofilament for brush, its production and rotary brush produced by using same
JPH0299608A (en) * 1988-10-03 1990-04-11 Mitsubishi Rayon Co Ltd Production of precursor for producing carbon fiber

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