KR0160465B1 - Method of manufacturing nylon fiber - Google Patents

Method of manufacturing nylon fiber Download PDF

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Publication number
KR0160465B1
KR0160465B1 KR1019950058495A KR19950058495A KR0160465B1 KR 0160465 B1 KR0160465 B1 KR 0160465B1 KR 1019950058495 A KR1019950058495 A KR 1019950058495A KR 19950058495 A KR19950058495 A KR 19950058495A KR 0160465 B1 KR0160465 B1 KR 0160465B1
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South Korea
Prior art keywords
yarn
spinning
winding
nylon
wound
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KR1019950058495A
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Korean (ko)
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KR970043397A (en
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조은래
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백영배
주식회사효성티앤씨
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Priority to KR1019950058495A priority Critical patent/KR0160465B1/en
Publication of KR970043397A publication Critical patent/KR970043397A/en
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    • 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
    • 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
    • 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
    • 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
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides

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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)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

본 발명은 방사구금으로부터 최초 권취롤러까지의 거리는 6m이상으로 하여 권취토록 함으로써 충분한 장력을 부여하고, 지연이완이 어느정도 이루어진 후 권취하는 것을 특징으로 하는 나이론 66계 원사의 제조방법에 관한 것으로, 본 발명의 방법은 낮은 방사속도로 권취할 경우에도 스팀을 방사통안에 넣거나 방사통을 가열하지 않고도 정상적으로 원사를 권취할 수 있는 장점이 있다.The present invention relates to a method for producing a nylon 66-based yarn, characterized in that the winding from the spinneret to the initial winding roller is 6 m or more to impart sufficient tension, and to be wound after a certain amount of delayed relaxation. The method has the advantage of winding the yarn normally without putting steam into the spinning barrel or heating the spinning barrel even when winding up at a low spinning speed.

Description

나이론 66계 원사의 제조방법How to make nylon 66 yarn

본 발명은 나이론 66계 원사 제조방법으로 보다 상세하게는 헥사메틸렌디아민과 아디픽에시드 모노머가 95%이상인 나이론 66계 원사를 용융방사법으로 제조함에 있어서, 낮은 방사속도에서 권취할 경우에도 스팀을 방사통안에 넣거나 방사통을 가열하지 않고도 정상적으로 원사를 권취토록 하는 방법에 관한 것이다.The present invention is a nylon 66-based yarn manufacturing method, more specifically, in the production of nylon 66-based yarn containing 95% or more of hexamethylenediamine and adipic acid monomer by melt spinning method, even when wound at a low spinning speed steam in the spinning barrel The present invention relates to a method of winding a yarn normally without putting or heating a spinning tube.

종래, 나이론 66개 고분자를 사용하여 용융방사법으로 원사를 제조할 경우, 미연신사를 방사한 후 다시 이 미연신사를 연신하여 연신사를 제조하는 2단계 원사생산법이 이용되어 왔다. 그러나, 이 방법은 방사공정에서 미연신사를 권취하는 과정이 반드시 필요한데 비하여, 나이론 66계 고분자는 낮은 방사속도에서 급격한 지연이완이 발생하는 성질이 있기 때문에 권취된 원사의 사층붕괴가 발생하게 된다. 특히 7g/d 고강력사를 제조하기 위해서는 방사속도를 700m/min이하로 하여 가능한 한 미연신사의 배향을 낮추어서 연신기 연신공정에서의 연신비를 최대한 높여야 하는데 방사속도를 낮출수록 지연이완 현상은 크게 발생된다.Conventionally, when yarns are manufactured by melt spinning using 66 polymers of nylon, a two-stage yarn production method has been used in which a non-drawn yarn is spun and then the undrawn yarn is stretched to produce a stretched yarn. However, this method requires the process of winding the undrawn yarn in the spinning process, whereas the nylon 66-based polymer has the property of rapid delayed relaxation at low spinning speed, which causes four layers of wound yarn to collapse. In particular, in order to manufacture 7g / d high-strength yarns, the spinning speed should be lowered to 700m / min to lower the orientation of the undrawn yarn as much as possible, so as to maximize the draw ratio in the drawing machine drawing process. .

종래에 이러한 지연이완 현상에 의한 사층붕괴를 막기 위하여 방사과정에서 결정화를 촉진시켜 지연이완의 발생정도를 줄이는 방법으로 방사통안에 스팀을 주입하든지 방사통을 100℃ 이상으로 가열하는 방법이 사용되어 왔으나 별다른 효과를 거두지 못하는 실정이다.Conventionally, in order to prevent the four-layer decay caused by the delayed relaxation phenomenon, by injecting steam into the spinneret or heating the spinneret to 100 ℃ or more as a method of promoting crystallization during the spinning process and reducing the occurrence of delayed relaxation, a different effect has been used. The situation is not harvested.

따라서 본 발명은 종래의 이러한 문제점을 해결하기 위한 것으로 종래의 방법과 같이 방사과정에서 결정화를 촉진시켜 지연이완 현상을 막는 방법이 아닌, 방사구금으로 권취할 때까지 적정한 장력을 부여하고, 또한 지연이완이 어느정도 일어난 후 권취토록 함을 특징으로 하는 것으로, 스팀을 방사통안에 주입시키거나, 방사통을 가열하지 않고도 정상적인 원사 권취가 가능토록 하였다.Therefore, the present invention is to solve this problem of the prior art, rather than the method of promoting the crystallization during the spinning process to prevent the delayed relaxation, as in the conventional method, to give the appropriate tension until winding with spinnerets, and also delayed relaxation It is characterized by being wound up after this to some extent, so that normal yarn winding is possible without injecting steam into the spinning barrel or heating the spinning barrel.

이하 본 발명을 상세히 설명하면, 본 발명에서는 방사공정에 있어서 방사구금으로부터 최초 권취롤러까지의 거리는 6m이상으로 하며, 방사장력이 권취되는 미연신사의 섬도에 대하여 0.1~0.3g/d가 걸리도록 하는 것이 중요하다. 또한 방사권취실의 온도를 12~13℃, 상대습도를 40~75%, 바람직하게는 65~70%로 유지시켜줌으로써 지연권축 현상에 대한 사층붕괴를 방지할 수 있다. 이와 같은 방사과정을 거쳐 권취된 미연신사는 연신공정을 거쳐 연신사로 사용하게 된다.Hereinafter, the present invention will be described in detail, in the present invention, the distance from the spinneret to the initial winding roller is 6 m or more in the spinning process, and 0.1 to 0.3 g / d is required for the fineness of the undrawn yarn in which the radial tension is wound. It is important. In addition, by maintaining the temperature of the radiation winding room 12 ~ 13 ℃, relative humidity 40 ~ 75%, preferably 65 ~ 70% it is possible to prevent the four-layer collapse to the delay crimping phenomenon. The unstretched yarn wound up through the spinning process is used as the stretched yarn through the stretching process.

따라서, 본 발명의 방법을 낮은 방사속도로 권취할 경우에도 스팀을 방사통안에 넣거나 방사통을 가열하지 않고도 정상적으로 원사를 권취할 수 있는 장점이 있다.Therefore, even when the method of the present invention is wound at a low spinning speed, there is an advantage that the yarn can be wound normally without putting steam into the spinning barrel or heating the spinning barrel.

이하 실시예를 들어 본 발명을 상세히 설명하나, 실시예에 의하여 본 발명이 제한을 받는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited by the Examples.

본 실시예 및 비교예는 최종 단사의 섬도가 약 6데니어인 210d/34f 생산결과로서,The present example and the comparative example are 210d / 34f production results of final fineness of about 6 denier,

[실시예1-4, 비교예1-4][Example 1-4, Comparative Example 1-4]

나이론 66 고분자 상대점도(황산 96%용액) 2.45를 사용하여 방사온도 280℃, 권취실 실내온도 20℃ 및 습도 65% R.H. 의 조건하에 시험을 행하고 그 결과를 표 1에 나타내었다.Nylon 66 polymer relative viscosity (96% sulfuric acid solution) 2.45 using spinning temperature of 280 ℃, room temperature 20 ℃ and humidity 65% R.H. The test was carried out under the conditions of and the results are shown in Table 1.

[실시예5-8, 비교예5-8][Example 5-8, Comparative Example 5-8]

나이론 66 고분자 상대점도(황산 96%용액) 3.1을 사용한 경우 방사온도 290℃, 권취실 실내온도 20℃ 및 습도 65% R.H. 의 조건에서 실시하고 그 결과를 표2에 나타내었다.Nylon 66 Polymer Relative Viscosity (96% sulfuric acid solution) 3.1 When using, spinning temperature 290 ℃, winding room room temperature 20 ℃ and humidity 65% R.H. It was carried out under the conditions of and the results are shown in Table 2.

Claims (2)

방사구금으로부터 최초 권취롤러까지의 거리는 6m이상으로 하여 권취토록 함으로써 충분한 방사장력을 부여하고, 지연이완이 어느정도 이루어진 후 권취하는 것을 특징으로 하는 나이론 66계 원사의 제조방법.A method of manufacturing a nylon 66-based yarn, characterized in that the distance from the spinneret to the initial winding roller is 6 m or more to impart a sufficient radial tension by winding up, and to wind up after a certain amount of delayed relaxation. 제1항에 있어서, 방사장력은 권취되는 미연신사의 섬도에 대하여 0.1~0.3g/d인 것을 특징으로 하는 나이론 66계 원사의 제조방법.The method of manufacturing a nylon 66-based yarn according to claim 1, wherein the radial tension is 0.1 to 0.3 g / d with respect to the fineness of the undrawn yarn wound up.
KR1019950058495A 1995-12-27 1995-12-27 Method of manufacturing nylon fiber KR0160465B1 (en)

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KR0160465B1 true KR0160465B1 (en) 1998-12-01

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