KR20030079015A - Method for producing metachromatic polytrimethyleneterephtalate fiber and the fiber - Google Patents

Method for producing metachromatic polytrimethyleneterephtalate fiber and the fiber Download PDF

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KR20030079015A
KR20030079015A KR1020020017754A KR20020017754A KR20030079015A KR 20030079015 A KR20030079015 A KR 20030079015A KR 1020020017754 A KR1020020017754 A KR 1020020017754A KR 20020017754 A KR20020017754 A KR 20020017754A KR 20030079015 A KR20030079015 A KR 20030079015A
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fiber
ptt
controller
yarn
speed
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KR1020020017754A
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Korean (ko)
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KR100456305B1 (en
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유병규
손양국
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주식회사 효성
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • D01D5/088Cooling filaments, threads or the like, leaving the spinnerettes
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00Modifying 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
    • D02J1/22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/221Preliminary treatments
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00Modifying 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
    • D02J1/22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/224Selection or control of the temperature during stretching
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00Modifying 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
    • D02J1/22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/228Stretching in two or more steps, with or without intermediate steps
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/14Dyeability

Abstract

PURPOSE: Migration polytrimethylene terephthalate fiber is characterized by having low strength and low modulus, increasing workability on raising, having soft texture, having low shrinkage and having excellent dimensional stability. CONSTITUTION: The migration PTT fiber is obtained by the steps of: extruding polytrimethylene terephthalate through a spinning base(1) to get PTT yarn group having 0.4-1.4 of ultimate viscosity; cooling the PTT yarn with a cooling device(2); oiling the yarn with an oil supplying device(3); cool-drawing the yarn between a first godet roller(4) and a second godet roller(5); heating the yarn between the second godet roller(5) and a third godet roller(6); air-confounding the yarn on an interlacer(7); and then winding the yarn.

Description

이염성 폴리트리메틸렌테레프탈레이트 섬유의 제조방법 및 그 섬유{Method for producing metachromatic polytrimethyleneterephtalate fiber and the fiber}Method for producing a di-chlorinated polytrimethylene terephthalate fiber and the fiber {Method for producing metachromatic polytrimethyleneterephtalate fiber and the fiber}

본 발명은 이염성(易染性) 폴리트리메틸렌테레프탈레이트(PTT) 섬유의 제조방법 및 그 방법에 의해 제조된 PTT 섬유에 관한 것으로, 보다 상세하게는 상압하에서 분산염료로 염색이 가능하며 치수 안정성이 우수하고 소프트한 촉감을 갖는폴리트리메틸렌테레프탈레이트 섬유를 제조하기 위한 방법에 관한 것이다.The present invention relates to a method for producing a dibasic polytrimethylene terephthalate (PTT) fiber and a PTT fiber produced by the method, more specifically, it is possible to dye with a disperse dye under normal pressure and dimensional stability A method for producing a polytrimethylene terephthalate fiber having an excellent soft touch.

이염성 폴리에스터 섬유의 제조는 통상적으로 폴리에스터 중합물 제조시, 폴리알킬렌글리콜 등의 성분을 첨가하여 방사공정에서의 폴리에스터 고분자 사슬의 배향 및 배향 결정화를 억제함으로써 비결정 부분을 증가시켜, 통상의 폴리에스터 염색공정 조건보다 비교적 낮은 온도(때로는 상압하)에서 염색이 가능한 섬유를 제조하는 것이 일반적인 방법이었다. 하지만, 상기의 방법으로 제조된 이염성 폴리에스터 섬유는 일반적인 폴리에스터 중합물을 이용하여 제조된 폴리에스터 섬유에 비해 섬유의 물리적 특성(특히, 섬유의 강도)의 저하가 발생되며, 방사 작업성이 불량해지고, 염색후 최종제품의 색상이 전박적으로 황색을 띠는(yellowish) 문제점이 있어, 상업적으로 널리 사용되어지지 않고 있다.In the production of the dibasic polyester fiber, in the production of a polyester polymer, the addition of a component such as polyalkylene glycol increases the amorphous portion by suppressing the orientation and orientation crystallization of the polyester polymer chain in the spinning process, It has been common practice to produce fibers that can be dyed at relatively lower temperatures (sometimes under atmospheric pressure) than polyester dyeing conditions. However, the dibasic polyester fiber prepared by the above method has a decrease in physical properties (particularly, the strength of the fiber) of the fiber compared to the polyester fiber produced by using a general polyester polymer, poor spinning workability After dyeing, there is a problem that the color of the final product after dyeing is totally yellowish, and thus is not widely used commercially.

최근 들어, 염색시 발색성이 우수하며 상압하에서 염색이 가능한 폴리트리메틸렌테레프탈레이트(이하, "PTT"라 함) 섬유의 생산공정의 상업화가 이루어져, 일본국 특허공개 평 9-3274호 및 평 5-262862호에 개시된 바와 같이 주로 BCF 카펫이나 브러시, 테니스 줄 등에 적용되어 전개중이고, 나아가 국제공개 제 00/29653호, 제 00/29654호, 제 00/66822호 및 제 01/23654호에 개시된 바와 같이 일반적인 의류 제품에도 적용을 시도하고 있다.Recently, commercialization of polytrimethylene terephthalate (hereinafter referred to as "PTT") fiber which is excellent in color development during dyeing and which can be dyed under normal pressure has been commercialized, and Japanese Patent Application Laid-open Nos. Hei 9-3274 and Hei 5- 5- As disclosed in 262862, it is mainly being applied to BCF carpets, brushes, tennis strings, etc., and further, as disclosed in International Publication Nos. 00/29653, 00/29654, 00/66822 and 01/23654. It is also applied to general apparel products.

PTT 섬유는 테레프탈산 또는 테레프탈산 디메틸에테레프탈산의 저급 알코올 에스테르와 트리메틸렌글리콜(1,3-프로판판디올)을 축중합시켜 얻어지는 중합물로 제조된 폴리에스터계 섬유로서, 소프트한 촉감, 우수한 탄성회복성, 이염성 등 폴리아미드와 유사한 성질과 아울러 내광성, 열세트성, 치수 안정성, 저흡수율 등 폴리에틸렌테레프탈레이트와 유사한 성능을 겸비한 섬유이다. 그러나, 이러한 PTT 섬유를 통상적인 방법에 따른 환편기모물 제조에 적용할 시에는 섬유 고유의 우수한 탄성회복성이 기모공정에 오히려 악영향을 끼쳐 기모 작업성이 불량해지며, 최종 제품의 외관이 불량한 단점이 있다.PTT fiber is a polyester fiber made of a polymer obtained by the polycondensation of terephthalic acid or terephthalic acid dimethyl ether terephthalic acid with a lower alcohol ester and trimethylene glycol (1,3-propanediol). It is a fiber that has similar properties to polyamide such as dichloride, and similar performance to polyethylene terephthalate such as light resistance, heat setability, dimensional stability, and low water absorption. However, when the PTT fiber is applied to the circular knit raising material according to a conventional method, the excellent elastic recovery property of the fiber adversely affects the raising process, resulting in poor brushing workability, and a disadvantage of poor appearance of the final product. have.

이에 본 발명은 상기와 같은 종래 기술의 문제점들을 해결하기 위한 것으로, 상압하에서 분산염료에 이염성이 있는 폴리트리메틸렌테레프탈레이트(PTT) 섬유를 제조함에 있어서, 방사공정에서 사조를 열처리함으로써 치수 안정성이 확보되고, 후가공시 기모 작업성이 우수하며, 소프트한 촉감을 발현하는 PTT 섬유를 제공함을 목적으로 한다.Accordingly, the present invention is to solve the problems of the prior art as described above, in the production of polytrimethylene terephthalate (PTT) fibers having a dichroic dye to the disperse dye under normal pressure, the dimensional stability by heat treatment of yarn in the spinning process It is an object of the present invention to provide a PTT fiber that is secured and has excellent brushing workability during post processing and expresses a soft touch.

즉, 본 발명의 한 측면은 이염성 폴리트리메틸렌테레프탈레이트(PTT) 섬유를 제조함에 있어서, 방사구금을 통하여 토출된 극한점도 0.4~1.4의 폴리트리메틸렌테레프탈레이트(PTT) 사조를 냉각장치에 의해 완전 냉각시킨 후, 유제공급장치에서 유제 부여 및 집속한 다음, 제1고데트롤러부와 제2고데트롤러부 사이에서 냉연신하고, 제2고데트롤러부와 제3고데트롤러부 사이에서 열처리한 후, 인터레이서에서 공기 교락을 부여하고 권취기에서 권취하는 것을 특징으로 하는 PTT 섬유의 제조방법을 제공한다.That is, in one aspect of the present invention, in the production of dibasic polytrimethylene terephthalate (PTT) fibers, the polytrimethylene terephthalate (PTT) thread having an extreme viscosity of 0.4 to 1.4 discharged through the spinneret is cooled by a cooling device. After completely cooling, the emulsion is fed and focused in the emulsion supply apparatus, and cold drawn between the first and second high controller parts, and heat-treated between the second and third high controller parts, It provides a method for producing a PTT fiber characterized by imparting air entanglement in the interlacer and winding in a winder.

본 발명의 다른 측면은 상기 방법에 의해 제조된 PTT 섬유를 제공한다.Another aspect of the present invention provides a PTT fiber produced by the above method.

도 1은 본 발명에 따른 폴리트리메틸렌테레프탈레이트 섬유의 제조에 사용된 방사장치의 개략도이다.1 is a schematic diagram of a spinning apparatus used in the production of polytrimethylene terephthalate fibers according to the present invention.

* 도면의 주요 부분에 대한 부호 설명 *Explanation of symbols on the main parts of the drawings

1 : 방사구금, 2 : 냉각장치, 3 : 유제공급장치1: spinneret, 2: cooling device, 3: emulsion supply device

4 : 제1고데트롤러부, 5 : 제2고데트롤러부, 6 : 제3고데트롤러부4: the first gode controller part, 5: the second gode controller part, 6: the third gode controller part

7 : 인터레이서, 8 : 권취기7: interlacer, 8: winding machine

이하, 본 발명의 PTT 섬유 제조방법을 단계별로 보다 상세하게 설명한다.Hereinafter, the PTT fiber manufacturing method of the present invention will be described in more detail step by step.

본 발명에서 방사구금(1)으로부터 토출된 폴리에스터 중합물은 제1고데트롤러부(4)까지의 구간에서 1차적으로 분자 배향이 이루어진다. 이 때, 제1고데트롤러부(4)의 속도는 1,000m/분 내지 4,000m/분, 더욱 바람직하게는 1,500m/분 내지 3,000m/분이다. 만일 제1고데트롤러부(4)의 속도가 1,000m/분 미만이면, 필라멘트 내 중합물의 분자 구조가 미배향 형태로 되므로, 적당한 물리적 특성을 발현시키기 위해서는 이후 연신 구간에서 높은 수준의 연신비가 요구되고, 그 결과 필라멘트 단사절 등이 발생하여 공정 작업성이 불안해진다. 반면, 제1고데트롤러부(4)의 속도가 4,000m/분을 초과하면, 제(1)고데트롤러부 전의 폴리트리메틸렌테레프탈레이트(PTT) 사조에 장력이 과다하게 집중되어 필라멘트 단사절이 발생하여 역시 공정 작업성이 불안해진다.In the present invention, the polyester polymer discharged from the spinneret 1 is primarily molecularly aligned in a section up to the first high controller portion 4. At this time, the speed of the first gode controller unit 4 is 1,000 m / min to 4,000 m / min, more preferably 1,500 m / min to 3,000 m / min. If the speed of the first gode controller portion 4 is less than 1,000 m / min, since the molecular structure of the polymer in the filament is in an unoriented form, a high level of draw ratio is required in the subsequent drawing section in order to express proper physical properties. As a result, filament single cutting occurs, resulting in unstable process workability. On the other hand, if the speed of the first gode controller portion 4 exceeds 4,000 m / min, the tension is excessively concentrated in the polytrimethylene terephthalate (PTT) thread before the (1) gode controller portion, the filament disconnection occurs Also, process workability becomes unstable.

제1고데트롤러부(4)를 통과한 필라멘트는 제1고데트롤러부(4)와 제2고데트롤러부(5) 사이에서 연신되는데, 제1고데트롤러부(4)에서는 열처리되지 않으며, 제2고데트롤러부(5) 이후에서 열처리되어 진다. 즉, 제1고데트롤러부(4)와 제2고데트롤러부(5) 사이의 연신은 냉연신 공정이다. 이러한 냉연신 공정을 거치는 이유는 일반적으로 냉연신된 필라멘트는 열연신된 필라멘트에 비해 섬유의 모듈러스(modulus)가 낮아지는데, 이러한 낮은 모듈러스는 최종 환편기물을 제조하고 난 후 소프트한 촉감을 발현시키는데 매우 적합하기 때문이다.The filament that has passed through the first gode controller part 4 is stretched between the first gode controller part 4 and the second gode controller part 5, but is not heat-treated in the first gode controller part 4, and the second The heat treatment is performed after the gode controller unit 5. That is, extending | stretching between the 1st high detro controller part 4 and the 2nd high detro controller part 5 is a cold drawing process. The reason for this cold drawing process is that cold drawn filaments generally have a lower modulus of fibers than hot drawn filaments, and these low modulus have a very good soft feel after producing the final circular knitting machine. Because it is suitable.

상기의 냉연신 단계에서 섬유 사조에 남아있는 잔류 응력을 제거하기 위해,제1고데트롤러부(4)와 제2고데트롤러부(5) 구간에서 연신된 필라멘트는 제2고데트롤러부(5)와 제3고데트롤러부(6) 구간에서 열처리되어 진다.In order to remove the residual stress remaining in the fiber thread in the cold drawing step, the filament stretched in the section of the first high-detro controller section 4 and the second high-detro controller section 5 and the second high-detro controller section 5 and Heat treatment is performed in the section of the third high controller portion 6.

상기 열처리 단계에서, 제2고데트롤러부(5)의 열처리 온도는 60℃ 내지 100℃가 적당하다. 만일 제2고데트롤러부(5)의 열처리 온도가 60℃ 미만이면, 필라멘트에 공급되는 열량이 작아 필라멘트내 분자의 운동성이 충분치 않아 단사절로 인해 공정성이 불량해진다. 반면, 제2고데트롤러부(5)의 열처리 온도가 100℃를 초과하면 제2고데트롤러부(5)에서의 필라멘트 유동성 증가로 인하여 필라멘트 제조 후 염색 불량이 발생한다.In the heat treatment step, the heat treatment temperature of the second high controller portion 5 is suitably 60 ℃ to 100 ℃. If the heat treatment temperature of the second high controller portion 5 is less than 60 ° C., the amount of heat supplied to the filament is small and the mobility of molecules in the filament is not sufficient, resulting in poor processability due to single cutting. On the other hand, if the heat treatment temperature of the second gode controller portion 5 exceeds 100 ℃ due to the increase in the filament fluidity in the second gode controller portion 5, the dyeing failure after filament production occurs.

또한, 제3고데트롤러부(6)의 열처리 온도는 130℃ 내지 200℃가 적당하다. 만일 제3고데트롤러부(6)의 열처리 온도가 130℃ 미만이면, 제1고데트롤러부(4)와 제2고데트롤러부(5) 구간에서 냉연신된 필라멘트의 잔류 수축 응력이 완전히 제거되지 않아 제조된 필라멘트의 치수 안정성이 불량해진다. 반면, 제3고데트롤러부(6)의 열처리 온도가 200℃를 초과하면 필라멘트간 부분적인 융착이 발생되어 공정성 불량이 야기된다.In addition, as for the heat processing temperature of the 3rd high-detro controller part 6, 130 degreeC-200 degreeC is suitable. If the heat treatment temperature of the third high controller portion 6 is less than 130 ℃, the residual shrinkage stress of the cold stretched filament in the section between the first high controller unit 4 and the second high controller unit 5 is not completely removed The dimensional stability of the produced filament is poor. On the other hand, when the heat treatment temperature of the third gode controller portion 6 exceeds 200 ℃ partial fusion between the filament is generated, causing poor processability.

아울러, 제3고데트롤러부(6)의 속도는 제2고데트롤러부(5)의 속도에 의해 결정되며, 하기 식을 만족해야 한다:In addition, the speed of the third gode controller portion 6 is determined by the speed of the second gode controller portion 5, and must satisfy the following equation:

0.8≤V3/V2≤1.00.8≤V 3 / V 2 ≤1.0

(V2: 제2고데트롤러부(5)의 속도; V3: 제3고데트롤러부(6)의 속도)(V 2 : speed of second high-detro controller section 5; V 3 : speed of third high-detro controller section 6)

이렇게 잔류 응력이 제거된 섬유 사조는 통상적인 폴리트리메틸렌테레프탈레이트(PTT) 섬유 또는 폴리에틸렌테레프탈레이트 섬유보다 낮은 수축율을 가지며 치수 안정성이 우수해진다.Fiber yarns from which residual stress has been removed have lower shrinkage and superior dimensional stability than conventional polytrimethylene terephthalate (PTT) fibers or polyethylene terephthalate fibers.

한편, 본 발명에 사용된 폴리트리메틸렌테레프탈레이트(PTT) 수지는 0.4~1.4, 바람직하게는 0.6~1.2의 극한점도를 갖는다. 만일 PTT 수지의 극한점도가 0.4 미만이면 용융점도가 낮기 때문에 방사성이 불안정하고, 섬유의 강도가 낮아 만족스런 물성을 얻을 수 없으며, 후가공 공정성도 좋지 않다. 반면, 극한점도가 1.4를 초과하면 용융점도가 높아서 정량 토출이 어려워져 토출 불균일 등의 문제가 발생하며, 안정한 조업이 곤란하다.On the other hand, the polytrimethylene terephthalate (PTT) resin used in the present invention has an intrinsic viscosity of 0.4 to 1.4, preferably 0.6 to 1.2. If the intrinsic viscosity of the PTT resin is less than 0.4, since the melt viscosity is low, the radioactivity is unstable, the strength of the fiber is low, satisfactory physical properties cannot be obtained, and post-processing processability is also poor. On the other hand, when the intrinsic viscosity exceeds 1.4, the melt viscosity is high, making it difficult to quantitatively discharge, resulting in problems such as uneven discharge, and stable operation is difficult.

상술한 본 발명의 방법에 의해 제조된 PTT 섬유는 단사섬도가 2.0 데니어 이하, 단사의 수가 20개 이상이며, 저강도(2.5~3.0 g/d), 저모듈러스(10% 신장시 모듈러스가 0.8~1.0 g/d) 및 저수축율(비등수 수축율이 4% 미만)의 특성을 갖는다. 이와 같은 특성으로 인하여, 본 발명의 PTT 섬유를 사용하면 환편기모물 제조시 우수한 기모 작업성 및 치수 안정성이 확보된다.PTT fiber produced by the method of the present invention described above has a single yarn fineness of 2.0 denier or less, the number of single yarns is 20 or more, low strength (2.5 ~ 3.0 g / d), low modulus (modulus of 0.8 ~ 10% elongation) 1.0 g / d) and low shrinkage (boiling water shrinkage of less than 4%). Due to these characteristics, using the PTT fiber of the present invention ensures excellent brushing workability and dimensional stability in the manufacture of circular knitting.

이하, 실시예를 통하여 본 발명을 보다 구체적으로 설명하고자 하나, 이러한 실시예들은 단지 설명의 목적을 위한 것으로 본 발명을 제한하는 것으로 해석되어서는 안된다.Hereinafter, the present invention will be described in more detail with reference to examples, but these examples are for illustrative purposes only and should not be construed as limiting the present invention.

제조예 1~5Production Example 1-5

극한점도가 0.85인 폴리트리메틸렌테레프탈레이트(PTT)를 방사온도 265℃로용융시키고, 36홀의 원형 방사구금을 사용하여 제1고데트롤러부(4)의 속도를 기준으로 2,000~3,000m/분의 속도로 방사하여 75d/36f의 원사를 얻었다. 이때, 제2고데트롤러부(5)의 온도는 80℃ 또는 100℃, 제3고데트롤러부(6)의 온도는 160℃ 또는 180℃, 제3고데트롤러부(6)와 제2고데트롤러부(5)의 속도비는 0.90 또는 0.95로 하였다.The polytrimethylene terephthalate (PTT) having an intrinsic viscosity of 0.85 was melted at a spinning temperature of 265 ° C., and a 36-hole circular spinneret was used for 2,000 to 3,000 m / min based on the speed of the first high controller portion 4. Spinning at speed yielded 75 d / 36 f of yarn. At this time, the temperature of the second high controller portion 5 is 80 ℃ or 100 ℃, the temperature of the third high controller portion 6 is 160 ℃ or 180 ℃, the third high controller part 6 and the second high controller part The speed ratio of (5) was 0.90 or 0.95.

비교제조예 1∼2Comparative Production Examples 1-2

방사시 제1고데트롤러부(4)의 속도를 900m/분 또는 4,500m/분으로 한 것을 제외하고는, 상기 제조예 1에서와 동일한 방식으로 제사하였다.The spinning was performed in the same manner as in Preparation Example 1, except that the speed of the first gode controller portion 4 was set at 900 m / min or 4,500 m / min.

비교제조예 3∼4Comparative Production Examples 3-4

제2고데트롤러부(5)의 온도를 40℃ 또는 120℃로 한 것을 제외하고는, 상기 제조예 1에서와 동일한 방식으로 제사하였다.The preparation was carried out in the same manner as in Production Example 1, except that the temperature of the second gode controller portion 5 was 40 ° C or 120 ° C.

비교제조예 5∼6Comparative Production Examples 5-6

제3고데트롤러부(6)의 온도를 110℃ 또는 220℃로 한 것을 제외하고는, 상기 제조예 1에서와 동일한 방식으로 제사하였다.Except that the temperature of the third high controller portion 6 was 110 ° C or 220 ° C, it was prepared in the same manner as in Production Example 1.

상기 제조예 1∼5 및 비교제조예 1∼6에 의한 원사의 제반물성을 평가하였으며, 그 결과는 하기 표 1과 같다.The overall physical properties of the yarns according to Production Examples 1 to 5 and Comparative Production Examples 1 to 6 were evaluated, and the results are shown in Table 1 below.

구분division 제1고데트롤러부 속도(m/분)1st high controller speed (m / min) 제2고데트롤러부 온도(℃)Second gode controller part temperature (℃) 제3고데트롤러부 온도(℃)3rd high controller part temperature (℃) V3/V2 V 3 / V 2 제사공정성Fair Fairness 염색성Dyeability 원사강도Yarn strength 제조예1Preparation Example 1 2,0002,000 8080 180180 0.950.95 제조예2Preparation Example 2 3,0003,000 8080 180180 0.950.95 제조예3Preparation Example 3 2,0002,000 100100 180180 0.950.95 제조예4Preparation Example 4 2,0002,000 8080 160160 0.950.95 제조예5Preparation Example 5 2,0002,000 8080 180180 0.900.90 비교제조예1Comparative Production Example 1 900900 8080 180180 0.950.95 ×× 비교제조예2Comparative Production Example 2 4,5004,500 8080 180180 0.950.95 ×× ×× ×× 비교제조예3Comparative Production Example 3 2,0002,000 4040 180180 0.950.95 ×× ×× 비교제조예4Comparative Production Example 4 2,0002,000 120120 180180 0.950.95 ×× 비교제조예5Comparative Production Example 5 2,0002,000 8080 110110 0.950.95 ×× 비교제조예6Comparative Production Example 6 2,0002,000 8080 220220 0.950.95 ×× ××

(◎ : 우수, ○ : 양호, △ : 보통, × : 불량 )(◎: Excellent, ○: Good, △: Normal, ×: Poor)

[물성 평가 방법][Property evaluation method]

① 제사공정성: 상기의 제조예 및 비교제조예의 방사조건에 의해 75d/36f 원사 9㎏ 권취시의 만권율로 평가하였음. 만권율이 95% 이상이면 우수(◎), 90∼95%이면 양호(○), 85∼90%이면 보통(△), 85% 미만이면 불량(×)으로 판정함.① Manufacturing processability: According to the spinning conditions of the above production example and comparative production example, it was evaluated as the unwinding capacity when winding 9kg of 75d / 36f yarn. It is judged to be excellent (◎) when the winding rate is 95% or more, good (○) when 90 to 95%, normal (△) when 85 to 90%, and poor (×) when less than 85%.

② 염 색 성: 상기의 제조예 및 비교제조예의 방사조건에 의해 제조된 75d/36f 원사를 Hose Knitting Machine을 이용하여 양말 편직한 후, Mathis社의 IR 염색기를 이용하여 염색하되, Nippon Kayakli Co.(일본)의 분산염료인 Kayalon Polyester Blue AN-SE를 시료 무게의 0.5%, 염액비 20:1로 하여 95℃(상압)에서 30분간 염색하여 육안으로 염색성을 평가하였음. 균일 염색인 경우 우수(◎), 불균염 발생하면 불량(×)으로 판정함.② Dyeing: 75d / 36f yarn prepared by the spinning conditions of the above production examples and comparative production examples by socks knitting using a Hose Knitting Machine, and dyed using an IR dyeing machine of Mathis, but Nippon Kayakli Co. Kayalon Polyester Blue AN-SE, a dispersion dye of (Japan), was dyed at 95 ° C (atmospheric) for 30 minutes at 0.5% of the sample weight and a salt ratio of 20: 1. In case of uniform dyeing, it is judged as good (◎), and in case of uneven salt, bad (×).

③ 10% 신장시 원사강도: Instron社의 인장 강·신도기를 이용, 원사 시료長 20㎝로 하여 20㎝/분의 속도로 인장시켜 신장비 대비 강도를 평가하였음. 10% 신장시원사강도가 1.0 그램/데니어 이상이면 우수(◎), 0.95∼1.0 그램/데니어이면 양호(○), 0.90∼0.95 그램/데니어이면 보통(△), 0.90 그램/데니어 이하이면 불량(×)으로 판정함.③ Yarn strength at 10% elongation: Using Instron's tensile strength and elongation machine, 20cm / min of yarn sample was used to stretch at a speed of 20cm / min to evaluate the strength to elongation ratio. 10% elongation at yarn strength of 1.0 grams / denier or higher (◎), 0.95 to 1.0 grams / denier good (○), 0.90 to 0.95 grams / denier normal (△), and 0.90 grams / denier or less ( X).

실시예 1Example 1

상기 제조예 1에 의해 생산된 PTT 섬유를 20 게이지 환편기에 적용하여 루프장 10mm, 생지 중량 450g/야드의 환편물을 개폭전 직경 30인치로 제조하였다. 상기 환편물을 100℃에서 분산염료(코우-네이비)로 염색한 후, 4회의 기모 및 1회의 전모(shearing) 작업을 거쳐 가공후 중량이 400g/야드가 되도록 하였다.The PTT fiber produced in Preparation Example 1 was applied to a 20 gauge circular knitting machine to prepare a circular knitted fabric having a loop length of 10 mm and a dough weight of 450 g / yard with a diameter of 30 inches before opening. The circular knitted fabric was dyed with a disperse dye (Ko-navy) at 100 ° C., and then subjected to four brushing and one shearing operation so as to have a weight of 400 g / yard after processing.

비교실시예 1Comparative Example 1

통상의 방법으로 제조된 비등수 수축율 10%의 PTT 섬유를 사용하여 상기 실시예 1에서와 동일한 방법으로 환편기모물을 제조하였다.Using a PTT fiber having a boiling water shrinkage of 10% prepared in a conventional manner, a circular knitting brush was prepared in the same manner as in Example 1.

상기 실시예 1 및 비교실시예 1에 의한 환편기모물의 제반물성을 평가하였으며, 그 결과는 하기 표 2와 같다.The physical properties of the circular knitted bases according to Example 1 and Comparative Example 1 were evaluated, and the results are shown in Table 2 below.

구분division 섬유수축율(%)Fiber Shrinkage (%) 생지 중량(g/야드)Dough weight (g / yard) 개폭전 생지 직경(인치)Opening dough diameter (inch) 염색가공후루프 길이(mm)Dyeing processing loop length (mm) 기모 작업후파일 길이(mm)Pile length after brushing (mm) 실시예 1Example 1 3.83.8 450450 3030 9.69.6 4.74.7 비교실시예 1Comparative Example 1 10.010.0 450450 3030 8.08.0 3.93.9

[물성 평가 방법][Property evaluation method]

① 수 축 율: 원주 1m의 Warp reel을 이용하여 5회 권회한 후, 초하중 75g을 부여하여 길이(l 0)를 측정한 후, 무장력하에서 150℃의 오븐에서 30분간 열처리를 한 다음 길이(l)를 측정한 데 이어, 다음 식을 이용하여 수축율을 계산함.① Shrinkage rate: After winding 5 times using 1m warp reel of circumference, measure the length ( l 0 ) by giving 75g of super load, heat treatment in oven at 150 ℃ for 30 minutes under no tension and then length ( l ) is measured, and then shrinkage is calculated using the following equation.

수축율(%)=(l0-l)/l0×100Shrinkage (%) = (l 0 -l) / l 0 × 100

② 루프 길이: 제조한 환편물 생지를 염색가공한 후, 전모(shearing) 작업전에 각각의 루프를 30개 채취하여 길이를 측정한 후 평균값을 취함.② Loop length: After dyeing the manufactured circular knitted fabric, 30 loops of each loop are taken before shearing, and the average value is taken.

③ 파일 길이: 제조한 환편물을 염색가공한 후, 전모 작업을 거쳐 각각의 파일을 30개 채취하여 길이를 측정한 후 평균값을 취함.③ Pile length: After dyeing and processing the circular knitted fabrics, 30 pieces of each pile are taken through a full-length operation, the length is measured, and the average value is taken.

상기 표 2에서 볼 수 있듯이, 동일한 중량의 환편기모물을 제조하는 경우, 실시예 1에 의한 환편기모물의 기모작업후 파일(pile) 길이가 더 길며, 역으로 동일한 길이의 파일 길이로 작업할 경우에는 실시예 1에 의한 환편기모물의 중량이 더 적게 된다. 이러한 특성은 본 발명의 방법에 따라 제조된 PTT 섬유의 치수 안정성이 통상의 방법으로 제조된 PTT 섬유보다 더 높은 데에 기인하는 결과이다.As can be seen in Table 2, in the case of producing the same weight circular knit brushed material, the length of the pile after raising the circular knitted brushed material according to Example 1 is longer, and conversely when working with the same length of the pile length The weight of the circular knit brushed material according to Example 1 becomes less. This property is a result of the fact that the dimensional stability of PTT fibers produced according to the method of the invention is higher than that of PTT fibers produced by conventional methods.

이상에서 상세히 설명한 바와 같이, 본 발명의 방법으로 제조된 PTT 섬유는 저강도 및 저모듈러스의 특성으로 인해 기모 가공시 작업성이 향상되고 소프트한 촉감을 발현할 뿐만 아니라, 낮은 수축율로 인해 염가공 처리후에도 기모된파일사(絲)의 사장(絲長)의 변화가 적으므로, 치수 안정성이 우수한 환편기모물 제품을 제공할 수 있다.As described in detail above, the PTT fiber produced by the method of the present invention improves workability during napping due to the characteristics of low strength and low modulus and exhibits a soft touch, and also due to low shrinkage treatment, Since there is little change of the boss of the pile yarn raised afterwards, the circular knit raising product excellent in dimensional stability can be provided.

Claims (5)

이염성 폴리트리메틸렌테레프탈레이트(PTT) 섬유를 제조함에 있어서, 방사구금을 통하여 토출된 극한점도 0.4~1.4의 폴리트리메틸렌테레프탈레이트(PTT) 사조를 냉각장치에 의해 완전 냉각시킨 후, 유제공급장치에서 유제 부여 및 집속한 다음, 제1고데트롤러부와 제2고데트롤러부 사이에서 냉연신하고, 제2고데트롤러부와 제3고데트롤러부 사이에서 열처리한 후, 인터레이서에서 공기 교락을 부여하고 권취기에서 권취하는 것을 특징으로 하는 PTT 섬유의 제조방법.In the production of chlorinated polytrimethylene terephthalate (PTT) fibers, the emulsion supply apparatus after completely cooling the polytrimethylene terephthalate (PTT) thread having an extreme viscosity of 0.4 to 1.4 discharged through the spinneret, by a cooling device After emulsifying and concentrating in, cold drawn between the first and second high-detro controller sections, heat-treated between the second and third high-detro controller sections, and then applying air entrapment in the interlacer. Method for producing a PTT fiber, characterized in that wound in a winder. 제 1항에 있어서, 제1고데트롤러부의 속도가 1,000m/분 내지 4,000m/분이고, 제2고데트롤러부와 제3고데트롤러부의 속도비가 하기 식을 만족하는 것을 특징으로 하는 PTT 섬유의 제조방법:The method of claim 1, wherein the speed of the first high controller portion is 1,000 m / min to 4,000 m / minute, and the speed ratio of the second high controller part and the third high controller part satisfies the following formula. : 0.8≤V3/V2≤1.00.8≤V 3 / V 2 ≤1.0 (V2: 제2고데트롤러부의 속도; V3: 제3고데트롤러부의 속도).(V 2 : speed of second high-detro controller section; V 3 : speed of third high-detro controller section). 제 1항 또는 제 2항에 있어서, 제2고데트롤러부의 온도가 60℃~100℃이고, 제3고데트롤러부의 온도가 130℃∼200℃인 것을 특징으로 하는 PTT 섬유의 제조방법.The method for producing a PTT fiber according to claim 1 or 2, wherein the temperature of the second high detro controller is 60 ° C to 100 ° C, and the temperature of the third high detrolator is 130 ° C to 200 ° C. 제 1항 내지 제 3항 중의 어느 한 항의 방법으로 제조된 PTT 섬유.PTT fiber produced by the method of any one of claims 1 to 3. 제 4항에 있어서, 상기 PTT 섬유의 단사섬도가 2.0 데니어 이하, 단사의 수가 20개 이상, 섬유의 강도가 2.5~3.0 g/d, 10% 신장시 모듈러스가 0.8~1.0 g/d이며, 비등수 수축율이 4% 미만인 것을 특징으로 하는 PTT 섬유.The single yarn fineness of the PTT fiber is 2.0 denier or less, the number of single yarns is 20 or more, the strength of the fiber is 2.5-3.0 g / d, and the modulus is 0.8-1.0 g / d at 10% elongation. PTT fiber characterized by a shrinkage rate of less than 4%.
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