KR0123041B1 - Manufacturing method of soluble polyester fiber - Google Patents

Manufacturing method of soluble polyester fiber

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Publication number
KR0123041B1
KR0123041B1 KR1019940020150A KR19940020150A KR0123041B1 KR 0123041 B1 KR0123041 B1 KR 0123041B1 KR 1019940020150 A KR1019940020150 A KR 1019940020150A KR 19940020150 A KR19940020150 A KR 19940020150A KR 0123041 B1 KR0123041 B1 KR 0123041B1
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KR
South Korea
Prior art keywords
spinneret
resin
polyester
fiber
weight
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KR1019940020150A
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Korean (ko)
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KR960007844A (en
Inventor
한동수
정도영
전광수
Original Assignee
김준웅
주식회사선경인더스트리
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Priority to KR1019940020150A priority Critical patent/KR0123041B1/en
Publication of KR960007844A publication Critical patent/KR960007844A/en
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Publication of KR0123041B1 publication Critical patent/KR0123041B1/en

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Classifications

    • 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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • 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
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • 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
    • 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)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Artificial Filaments (AREA)

Abstract

Dimethylterephthalate, ethyleneglycol, 5-sulfurdimethylisophthalate sodium and sodium acetate 2 as a catalyzer are mixed to heat up and rising up the temperature, the methanol generated by reaction is drawn out, while conducting ester exchange reaction. When ester exchange reaction is finished, polyethyleneglycol is added, and as a stabilizer, trimitphosphoric, and as a condensation polymerization reacting catalyzer, trioxide antimony is mixed, thereafter the generated material is immersed into the condensation polymerization reacting vessel and decelerated.

Description

이용성 폴리에스테르 섬유의 제조방법Manufacturing method of usable polyester fiber

본 발명은 이용성 폴리에스테르 섬유의 제조방법에 관한 것으로서, 더욱 상세하게는 이용성 수지의 유동 특성에 적합한 사양을 가진 방사구금의 범위를 한정하여 이를 사용함으로써 섬유제조 공정을 안정화하면서 품질이 우수한 이용성 폴리에스테르 섬유를 제조하는 방법에 관한 것이다.The present invention relates to a method for producing a usable polyester fiber, and more particularly, by using a limited number of spinnerets having a specification suitable for the flow characteristics of a usable resin, thereby stabilizing a fiber manufacturing process while maintaining a high quality usable polyester. The present invention relates to a method for producing a fiber.

일반적으로 이용성/수용성 섬유는 자수바닥 소재로 사용되거나 일반 직물 또는 편물에서 새로운 외관이나, 촉감을 발현하기 위한 소재로 사용되어 왔으며 최근에는 면직물을 제조함에 있어 꼬임수를 줄임으로써 부드러운 촉감을 향상시키는 소재로 그 용도가 넓어지고 있다.In general, usable / water-soluble fibers have been used as embroidered flooring materials or as a material for expressing a new look or feel in general fabrics or knitted fabrics, and recently, materials for improving soft touch by reducing the number of twists in manufacturing cotton fabrics The use is getting wider.

종래에는 이러한 용도에 주로 수용성 폴리비닐알콜(이하 PVA)섬유를 사용하는 경우가 거의 대부분을 차지하였으나, PVA 섬유는 고온다습한 조건에서 강도 및 신도 등 기본적인 기계적 물성이 약해지는데 이것은 섬유의 강신도를 결정하는 분자간 결합력이 약해지기 때문이며, 이러한 현상은 수분과 열에 의하여 수용성 PVA 섬유의 분자간 또는 분자내의 수소결합이 절단되기 때문이다.Conventionally, the use of water-soluble polyvinyl alcohol (hereinafter referred to as PVA) fiber is mainly used for this purpose, but PVA fiber is weak in basic mechanical properties such as strength and elongation under high temperature and humidity conditions, which determines the strength of the fiber. This is because the intermolecular binding force is weakened, and this phenomenon is caused by the intermolecular or intramolecular hydrogen bonding of the water-soluble PVA fibers being broken by moisture and heat.

또한 수분에 의해 쉽게 팽윤되므로 직물의 형태안정성이 불량해지는 등 상기 PVA 섬유로 제품을 제조하는데에는 적합한 온도 및 습도의 유지가 필히 요구되는 문제점이 있었다.In addition, there is a problem in that it is necessary to maintain a suitable temperature and humidity in order to manufacture the product from the PVA fibers, such as poor swelling of the fabric due to poor swelling by moisture.

상기한 PVA 섬유의 단점을 극복하기 위하여 이용성 합성수지에 대한 연구가 진행되었으며, 특히 폴리에스테르 수지를 이용한 연구가 활발하였다.In order to overcome the shortcomings of the PVA fibers described above, studies on usable synthetic resins have been carried out, and studies using polyester resins have been particularly active.

예를 들면 일본 특개소 63-1595255 및 일본 특개소 63-165516호에서는 테레프탈산과 에틸렌글리콜을 주성분으로 하며, 5-나트륨설포이소프탈산, 분자량 400 ~6,000의 폴리옥시알킬렌글리콜 및 선상 에스테르 형성성 디카르본산 등을 공중합시켜 수지를 합성하고 이를 섬유화하는 기술이 제안되어 있다.For example, Japanese Patent Laid-Open No. 63-1595255 and Japanese Patent Laid-Open No. 63-165516 have terephthalic acid and ethylene glycol as main components, 5-sodium sulfoisophthalic acid, polyoxyalkylene glycol having a molecular weight of 400 to 6,000, and linear ester-forming properties. A technique for synthesizing a resin by copolymerizing dicarboxylic acid or the like and fiberizing it has been proposed.

그러나 상기한 방법에 의해 제조된 수지는 30~40몰%의 공중합 물질이 첨가되어 있어 수지의 제조공정성은 물론 섬유화하기 위하여 용융방사 및 연신하는 섬유제조 공정성이 극히 불량한 문제가 있다.However, the resin produced by the above method is 30 to 40 mol% of the copolymer is added, there is a problem that the manufacturing process of the resin as well as the process of melt spinning and stretching the fiber manufacturing process in order to make the fiber extremely poor.

따라서, 본 발명은 이러한 종래기술의 문제점을 해결한 것으로, 약 알칼리 농도의 조건에서 용이하게 용해, 가수분해되며, 강도 내열성 등의 물리적 성질이 우수하고 열가소성인 폴리에스테르 수지를 수지의 유동특성에 적합한 직경을 갖는 방사구금을 통하여 방사함으로써 제조공정성이 우수하고 제조된 섬유의 균제도가 우수한 폴리에스테르 섬유를 제조하는 방법을 제공하는데 그 목적이 있다.Accordingly, the present invention solves the problems of the prior art, and is easily dissolved and hydrolyzed under the conditions of weak alkali concentration, and has excellent physical properties such as strength and heat resistance, and is suitable for the flow characteristics of the resin. It is an object of the present invention to provide a method for producing a polyester fiber by spinning through a spinneret having a diameter and excellent manufacturing processability and excellent uniformity of the produced fiber.

이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.

본 발명은 테레프탈산 또는 그 유도체와 디올 화합물을 중합하여 폴리에스테르를 제조하고 이를 용융방사하여 폴리에스테르 섬유를 제조함에 있어서, 테레프탈산 또는 그 유도체에 대하여 2~7몰%의 5-나트륨설포이소프탈레이트 또는 그유도체를 함유하는 폴리에스테르계 및/또는 폴리에스테르에스테르계 수지 83~93중량%과 수평균분자량 2,500~20,000인 수용성 폴리알킬렌옥사이드 7~17중량% 함유하는 수지조성물을 방사구금 단공의 개구면적이 0.01㎟ 이상인 섬유제조용 방사공을 가진 방사구금을 사용하여 해당물을 방사구금 단공의 개구면적 A(㎟)와 방사단공을 통하여 압출되는 토출량 Q(g/분)과의 관계가 다음 식(Ⅰ)를 만족하는 조건에서 용융 방사하는 것을 특징으로 하는 이용성 폴리에스테르 섬유 제조방법에 관한 것이다.In the present invention, a polyester is prepared by polymerizing terephthalic acid or a derivative thereof and a diol compound and melt spinning the same to prepare polyester fiber, and 2 to 7 mol% of 5-sodium sulfoisophthalate or terephthalic acid or a derivative thereof is used. Opening area of the spinneret single hole containing a resin composition containing 83 to 93% by weight of a polyester-based and / or polyester-based resin containing the derivative and 7 to 17% by weight of a water-soluble polyalkylene oxide having a number average molecular weight of 2,500 to 20,000. The relationship between the opening area A (mm2) of the spinneret single hole and the discharge amount Q (g / min) extruded through the spinneret using the spinneret having a spinneret having a fiber manufacturing hole of 0.01 mm2 or more is expressed by the following equation (Ⅰ). It relates to a method for producing a usable polyester fiber characterized in that the melt spinning under conditions satisfying ()).

이하, 본 발명을 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail.

본 발명은 먼저 테레프탈산 또는 그 유도체와 디올 화합물을 반응시켜 폴리에스테르 수지를 제조하는데, 수지의 기계적 내후성과 물리적 특성, 그리고 가수분해성을 향상시키기 위하여 테레프탈산 또는 그 유도체에 대하여 2~7몰%의 5-나트륨설포이소프탈레이트 또는 그의 유도체를 함유하는 폴리에스테르계 및/또는 폴리에스테르에스테르계가 83~93중량%, 수평균분자량 2,500~20,000인 수용성 폴리알킬렌옥사이드 7~17중량% 함유하는 수지조성물을 사용하여 섬유화한다.The present invention first prepares a polyester resin by reacting terephthalic acid or a derivative thereof with a diol compound. In order to improve mechanical weatherability, physical properties, and hydrolyzability of the resin, 2 to 7 mol% of 5- based on terephthalic acid or a derivative thereof is used. The resin composition containing 7-17 weight% of water-soluble polyalkylene oxides with 83-93 weight% of polyester-type and / or polyester-ester type | system | group containing sodium sulfoisophthalate or its derivative (s) and number average molecular weight 2,500-20,000 is used. To fiber.

본 발명에 있어서, 폴리에스테르 및/또는 폴리에스테르에스테르계 수지의 사용량이 83중량% 미만인 경우 후가공에서의 용해성이 불량하게 되고, 93중량%를 초과하게 되면 칩의 건조불량으로인해 단사율, 균제도 등의 제사성이 불량하게 된다. 이와 마찬가지로 폴리알킬렌옥사이드의 사용량이 7중량% 미만일 경우 칩의 건조불량으로 인해 단사율, 균제도 등의 제사성이 불량하게 되고, 17중량%를 초과하게 되면 후가공에서의 용해성이 불량하게 된다.In the present invention, when the amount of the polyester and / or polyester-ester-based resin is less than 83% by weight, solubility in post-processing is poor, and when it exceeds 93% by weight, the single shot rate, the leveling agent, etc. due to poor drying of the chip. The sacrificial property of is bad. Likewise, when the amount of polyalkylene oxide used is less than 7% by weight, the poor dryness of the single shot, the homogenizer, etc. is poor due to the poor drying of the chip, and when the amount of the polyalkylene oxide is more than 17% by weight, the solubility in post processing is poor.

또한, 용융 중축합형 중합체를 섬유로 제조할 때 특히 중요한 공정은 방사공정이다. 방사공정은 방사후 연신 및 제품사의 가공공정에 영항을 끼치며 그 결과로 최종제품의 품질에 상당한 영향을 미친다. 이러한 영향을 끼치는 방사공정 중의 주요 인자는 고분자 사슬들 간의 엉킴의 정도와 섬유를 구성하는 모노필라멘트의 균제도로 압축된다.In addition, a particularly important process for producing melt polycondensation polymers from fibers is the spinning process. The spinning process affects the stretching process after spinning and the processing of the product company, and as a result, has a significant influence on the quality of the final product. The main factor in the spinning process affecting this is the degree of entanglement between the polymer chains and the homogenization of the monofilaments constituting the fibers.

열가소성 수지를 미세한 직경을 가진 방사구금을 통해 압출하여 섬유화할 때 수지는 방사구금 내에서 전단응력을 받아 전당응력을 일으키며 방사구금을 통과한 직후 방사구금 내에서 받은 전단응력이 소멸됨에 따라 섬유직경이 증가하는 현상(소위 비루스 효과)를 일으킴으로 방사구금을 중합반응물의 유동특성에 적합한 직경을 갖는 것으로 선정하여야 한다. 선정된 방사구금의 직경이 중합반응물의 유동특성에 비해 작은 경우 방사구금 내에서의 전단응력 및 전단변형이 높아져서 비루스 효과가 증대되어 섬유를 구성하는 모노필라멘트의 균제도가 불량하게 되며, 반대로 선정된 방사구금의 직경이 중합반응물의 유동특성에 비하여 큰 경우 방사구금 내에서의 전단응력 및 전단변형이 낮아져서 고분자 사슬이 엉킴의 정도가 증가하고 방사 드래프트가 낮아져서 균제도가 불량하게 되기 때문에 섬유화 제조공정성이 불량하게 될 뿐 아니라 이렇게 제조된 섬유의 후공정에서의 사용에도 악영향을 미치는 등 품질이 불량하게 된다.When the thermoplastic resin is extruded through a spinneret having a fine diameter and fiberized, the resin receives a shear stress in the spinneret to cause a pitting stress. As the shear stress received in the spinneret disappears immediately after passing through the spinneret, the fiber diameter is decreased. The spinneret should be chosen to have a diameter suitable for the flow characteristics of the polymerization reactant, causing an increasing phenomenon (so-called virus effect). If the diameter of the selected spinneret is small compared to the flow characteristics of the polymerization reactant, the shear stress and shear strain in the spinneret are increased to increase the virus effect, resulting in poor uniformity of the monofilament constituting the fiber. If the diameter of the mold is larger than the flow characteristics of the polymerization reactant, the shear stress and shear strain in the spinneret are lowered, so that the degree of entanglement of the polymer chain is increased and the spin draft is lowered, so that the uniformity is poor. In addition, the quality of the fiber is bad, such as adversely affects the use in the post-process.

그러므로, 합성된 수지, 특히 개질된 수지를 이용하여 섬유화할 때 적절한 방사구금을 사용함으로써 섬유화 제조공정성을 개선하고 제조된 섬유의 품질을 높일 수 있다.Therefore, when fiberizing with a synthetic resin, especially a modified resin, by using an appropriate spinneret, it is possible to improve the fiber manufacturing processability and to improve the quality of the fiber produced.

본 발명에서는 방사구금의 단공의 개구면적이 0.01㎟ 이상인 섬유제조용 방사공을 가진 방사구금을 사용하여 해당 방사구금의 단공의 개구면적 A(㎟)과 방사단공을 통하여 압출되는 토출량 Q(g/분)과의 관계가 상기식(Ⅰ)을 만족하는 조건에서 용융방사할 경우에 섬유 제조공정성이 양호하였다. 이때, 방사구금 단공의 개구면적이 상기 식(Ⅰ)의 하한보다 작게 되면 방사시 토출량이 너무 적어 결과적으로 단사섬도(monodenier)가 너무 작게 되고, 공정중 방사성이 불량하게 되어 균제도 등에서 문제가 되므로 부적합하고, 반대로 단공의 개구면적이 상기 식(Ⅰ)의 상한을 초과하게 되면, 방사구금 내에서의 전단응력 및 전단변형이 낮아져서 고분자사슬이 엉킴의 정도가 증가하고 방사 드래프트가 낮아져서 균제도가 불량하게 되기 때문에 섬유화 제조공정이 불량하게 될 뿐 아니라 후공정에서의 사용에도 악영향을 미치게 된다.In the present invention, the opening area A (mm2) of the single hole of the spinneret and the discharge amount Q (g / min) extruded through the single end of the spinneret using the spinneret having a spinneret for fiber manufacturing having an opening area of the spinneret single hole of 0.01 mm 2 or more. The fiber manufacturing processability was good when melt spinning under the condition that the relationship with?) Satisfies the above formula (I). At this time, when the opening area of the spinneret single hole is smaller than the lower limit of the above formula (I), the discharge amount during spinning is too small, and as a result, the monoodenier becomes too small and the radioactivity during the process becomes poor, which is a problem in the uniformity, etc. On the contrary, when the opening area of the single hole exceeds the upper limit of the formula (I), the shear stress and shear strain in the spinneret are lowered, thereby increasing the degree of entanglement of the polymer chain and lowering the spinning draft, resulting in poor uniformity. As a result, not only the fiber manufacturing process is poor, but also adversely affects the use in the later process.

이하, 본 발명을 실시예를 통하여 더욱 구체적으로 설명하겠는 바, 본 발명이 실시예에 의하여 한정되는 것은 아니다. 하기 실시예 및 비교예에서 부는 중량부를 의미한다.Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited by Examples. In the following Examples and Comparative Examples, parts means parts by weight.

[실시예 1]Example 1

디메틸테레프탈레이트 1,000부, 에틸렌글리콜 640부, 5-나트륨설포디메틸이소프탈레이트 4몰% 및 교환반응 촉매로서 초산나트륨 2수염을 1.3부 첨가하여 3시간에 걸쳐 온도를 150℃에서 220℃까지 서서히 가열하여 승온하면서 반응에 의해 발생되는 메탄올을 계외로 유출하면서 에스테르 교환반응을 행하였다.1,000 parts of dimethyl terephthalate, 640 parts of ethylene glycol, 4 mol% of 5-sodium sulfodimethylisophthalate and 1.3 parts of sodium acetate dihydrate were added as an exchange reaction catalyst, and the temperature was gradually heated from 150 ° C to 220 ° C over 3 hours. The transesterification reaction was carried out while the methanol generated by the reaction was discharged out of the system while raising the temperature.

이론적인 메탄올 유출량의 95% 이상이 유출되면 에스테르 교환반응을 종료시키고 평균분자량 6,000의 폴리에틸렌글리콜을 13중량% 투입하고 안정제로서 트레밑인산 0.46부, 중축합반응 촉매로서 삼산화안티몬 0.38부를 첨가한 후 20분간 교반하면서 내온을 240℃로 승온하였다.When 95% or more of the theoretical methanol flowed out, the transesterification reaction was terminated, and 13 wt% of polyethylene glycol having an average molecular weight of 6,000 was added. Internal temperature was heated up to 240 degreeC, stirring for minutes.

얻어진 생성물을 미리 240℃로 가열된 중축합 반응조로 옮기고 상압의 질소분위기하에서 15분간 교반하여 내용물을 안정화시킨 후 60분간에 걸쳐 내온을 240℃에서 280℃로 승온하면서 반응계를 0.1㎜Hg까지 감압하고 이후에는 280℃, 0.1㎜Hg의 상태에서 원하는 수준의 용융점도에 도달할 때까지 반응을 지속하여 소정 물성의 수지를 얻어 칩화하였다.The resulting product was transferred to a polycondensation reactor previously heated to 240 ° C., stirred for 15 minutes under a nitrogen atmosphere at atmospheric pressure to stabilize the contents, and the reaction system was decompressed to 0.1 mmHg while raising the internal temperature from 240 ° C. to 280 ° C. over 60 minutes. Thereafter, the reaction was continued until the desired level of melt viscosity was reached at 280 ° C. and 0.1 mm Hg, thereby obtaining and chipping a resin having a predetermined physical property.

얻어진 수지를 상법에 따라 건조하고 용융압출형 방사기에서 방사단공의 지름이 0.35㎜인 원형 방사공을 12개 가진 방사구금을 사용하여 방사온도 270℃, 방사속도 1,200m/분으로 용유방사하여 미연신사를 제조하였고, 이를 공급로울러, 열처리 플레이트 및 연신로울러로 구성된 연신기에서 최종적으로 연신사의 파단신도가 30~40%가 되는 40D/12F의 섬유를 제조하였다.The resin thus obtained was dried according to the conventional method, and was unstretched by melt spinning at a spinning temperature of 270 ° C and a spinning speed of 1,200m / min using a spinneret having twelve round spinnerets having a diameter of 0.35 mm in the melt extrusion type spinning machine. In the drawing machine consisting of a feed roller, a heat treatment plate and a drawing roller, a fiber of 40D / 12F having an elongation at break of the drawn yarn was 30-40%.

연신하는 과정중에 섬유가 절사되는 비율을 산정하고 제조된 섬유의 균제도를 측정하여 표 1에 나타내었다.Table 1 shows the rate at which the fibers are cut off during the stretching process and the homogeneity of the fibers produced.

[실시예 2~4]EXAMPLES 2-4

[비교예 1~3][Comparative Examples 1-3]

방사 단공의 지름이 방사구금을 사용한 것을 제외하고는 실시예 1과 동일한 절차를 반복하였다.The same procedure as in Example 1 was repeated except that the diameter of the spin holes used spinneret.

상기 표 1로부터, 본 발명에 따르는 실시예의 섬유들이 비교예의 섬유들에 비하여 단사율이 현저히 개선되고 균제도가 월등히 향상됨을 알 수 있다.From Table 1, it can be seen that the fibers of the embodiment according to the present invention significantly improved the single yarn rate and the uniformity of the fibers compared to the fibers of the comparative example.

Claims (1)

폴리에스테르 섬유를 제조함에 있어서, 테레프탈산 또는 그 유도체와 디올 화합물을 중합하는 것에 의해 제조되며 테레프탈산 또는그 유도체에 대하여 2~7몰%의 5-나트륨설포이소프탈산 또는 그유도체를 함유하는 폴리에스트계 수지, 폴리에스테르계 수지 또는 이들의 혼합수지 83~93중량%와; 수평균분자량 2,500~20,000인 수용성 폴리알킬렌옥사이드 7~17중량% 함유하는 수지조성물을 방사구금을 사용하여 해당 방사구금 단공의 개구면적 A(㎟)와 방사단공을 통하여 압출되는 토울량 Q(g/분)과의 관계가 다음 식(Ⅰ)을 만족하는 조건에서 용융 방사하는 것을 특징으로 하는 이용성 폴리에스테르 섬유의 제조방법.In preparing polyester fibers, a polyester system prepared by polymerizing terephthalic acid or a derivative thereof and a diol compound and containing 2 to 7 mol% of 5-sodium sulfoisophthalic acid or its derivative relative to terephthalic acid or a derivative thereof. 83 to 93% by weight of resin, polyester resin or mixed resins thereof; Resin composition containing 7 to 17% by weight of a water-soluble polyalkylene oxide having a number average molecular weight of 2,500 to 20,000 using spinneret, the opening area A (mm2) of the spinneret single hole and the amount of tow Q extruded through the spinneret Per minute) and melt spinning on the conditions satisfying the following formula (I).
KR1019940020150A 1994-08-16 1994-08-16 Manufacturing method of soluble polyester fiber KR0123041B1 (en)

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KR101414211B1 (en) * 2013-11-28 2014-07-10 도레이케미칼 주식회사 Fabric comprising a hollow fiber with C-shaped cross-section and method for manufacturing thereof
KR101414206B1 (en) * 2013-11-08 2014-07-18 도레이케미칼 주식회사 C-shaped cross-section with a hollow fiber and method for manufacturing thereof
KR20180110827A (en) * 2017-03-30 2018-10-11 도레이케미칼 주식회사 Alkali-soluble polyester fiber having enhanced weavability and manufacturing method thereof
US10947644B2 (en) 2013-08-02 2021-03-16 Toray Advanced Materials Korea Inc. C-shaped composite fiber, C-shaped hollow fiber thereof, fabric including same, and method for manufacturing same

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Publication number Priority date Publication date Assignee Title
US10947644B2 (en) 2013-08-02 2021-03-16 Toray Advanced Materials Korea Inc. C-shaped composite fiber, C-shaped hollow fiber thereof, fabric including same, and method for manufacturing same
KR101414206B1 (en) * 2013-11-08 2014-07-18 도레이케미칼 주식회사 C-shaped cross-section with a hollow fiber and method for manufacturing thereof
KR101414211B1 (en) * 2013-11-28 2014-07-10 도레이케미칼 주식회사 Fabric comprising a hollow fiber with C-shaped cross-section and method for manufacturing thereof
KR20180110827A (en) * 2017-03-30 2018-10-11 도레이케미칼 주식회사 Alkali-soluble polyester fiber having enhanced weavability and manufacturing method thereof

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