KR100490790B1 - Method for manufacturing single component hollow fiber crimped fiber using capillary cooling device - Google Patents

Method for manufacturing single component hollow fiber crimped fiber using capillary cooling device Download PDF

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KR100490790B1
KR100490790B1 KR1019970038187A KR19970038187A KR100490790B1 KR 100490790 B1 KR100490790 B1 KR 100490790B1 KR 1019970038187 A KR1019970038187 A KR 1019970038187A KR 19970038187 A KR19970038187 A KR 19970038187A KR 100490790 B1 KR100490790 B1 KR 100490790B1
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fiber
cooling device
hollow
single component
spontaneous
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KR19990015847A (en
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이광재
노영옥
신우택
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주식회사 휴비스
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    • 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
    • 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
    • D01D5/24Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • 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
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent

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  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Multicomponent Fibers (AREA)

Abstract

본발명은 단일성분의 폴리에스테르폴리머를 중공방사구금으로 용융압출시킨 다음에 냉각, 고화시켜서 중공 자발 권축섬유를 제조할 때, 방사직후(통상의 냉각처리 이전)에 방출사조의 한쪽면에만 냉각공기를 분사시켜서 방출사조의 양쪽부분에 배향도와 결정화크기등의 차이를 일으켜서 이와같은 차이가 열수축특성의 차이를 일으키도록하여 자발권축성이 발현되도록 한 제조방법임.According to the present invention, when a single spontaneous polyester polymer is melt-extruded with a hollow spinneret and then cooled and solidified to produce a hollow spontaneous crimped fiber, cooling air is provided on only one side of the discharge yarn immediately after spinning (prior to normal cooling treatment). It is a manufacturing method that spontaneous crimping property is expressed by causing the difference of orientation degree and crystallization size in both parts of emitting thread by spraying.

Description

모세관 냉각장치를 이용한 단성분 중공 자발 권축 섬유의 제조방법Method for manufacturing single component hollow spontaneous crimped fiber using capillary cooling device

본 발명은 모세관 냉각장치(제 1 도 참조)를 이용하여 단성분(單成分)의 중공 자발 고권축 섬유를 제조하는 방법에 관한 것으로서, 냉각풍을 방사구금 하부에서 모세관을 통해 강하게 불어 넣어 섬유의 한쪽 영역만이 냉각되도록 함으로서 섬유의 길이방향으로 사이드 바이 사이즈(side by side) 중공 단면과 유사하게 서로 다른 분자배향과 열수축 특성을 갖도록 하여서, 이를 이완 열처리하였을때 자발 고권축 특성과 함께 우수한 초기 벌키성과 압축회복률이 동시에 발현되도록 함을 특징으로 하는 섬유의 제조방법에 관한 것이다.The present invention relates to a method for producing a hollow spontaneous high-stretch fiber of a single component using a capillary cooling device (see FIG. 1), wherein a cooling air is blown strongly through a capillary tube under a spinneret to By cooling only one area, it has different molecular orientation and heat shrinkage characteristics similar to the side by side hollow cross section in the longitudinal direction of the fiber, and has excellent initial bulkiness with spontaneous high crimping characteristics when relaxed heat treatment. The present invention relates to a method for producing a fiber, characterized in that to simultaneously express the compression recovery rate.

일반적으로 수축성등 물성이 다른 이종의 폴리머를 함께 복합방사하여 단일 섬유로 제조할 때 단일 필라멘트의 횡단면을 편심 시스 - 코어(Sheath-core) 또는 사이드 바이 사이드(Side by side)형으로 형성시킨 복합섬유는 잠재 권축성을 지니며, 이를 이완 열처리하면 균일한 나선상의 고권축성이 발현된다.In general, when multi-component polymers with different properties, such as shrinkage, are spun together to form a single fiber, a cross-section of a single filament is formed into an eccentric sheath-core or side by side type. Has latent crimping properties, and loose heat treatment results in uniform spiral high crimping properties.

이러한 원리를 이용하여 권축성 복합섬유를 제조하는 종래의 방법으로서는 크게 3가지로 분류할 수 있는데, 첫째는 각각 수축성이 다른 섬유를 이수축 혼섬 방식으로 혼섬하여 고권축성을 발현시키는 복합섬유의 제조방법(일특개소 59-216934호), 둘째는 성질이 다른 이종의 폴리머를 단일섬유로 복합방사하여 제조하는 방법(일특개소 51-67421호)과, 셋째로는 동일계 폴리머로서 각각 특성이 다른 공중합체를 각각 제 1성분과 제 2성분으로 하여 고권축특성을 발현시키는 복합섬유의 제조방법(일특개소 51-116220호)등이 제안되고 있다.Conventional methods for producing crimped composite fibers using this principle can be broadly classified into three types. First, a method for producing a composite fiber expressing high crimping properties by mixing fibers having different shrinkage properties in a biaxially blending method. (Japanese Patent Application Laid-Open No. 59-216934), second, a method of manufacturing by spinning a heterogeneous polymer having different properties into a single fiber (Japanese Patent Application No. 51-67421), and third, a copolymer having different properties as an in-situ polymer. A method for producing a composite fiber (one patent application No. 51-116220) and the like that has a high crimping property as a first component and a second component, respectively, has been proposed.

그러나, 위의 첫째 방법인 이수축혼섬방식의 복합섬유제조방법은 동일 조성의 폴리머의 특성을 기준으로 해서 연신시 각각 열수축성이 다르게 연신한 다음, 공기 교락 복합하여 권축이 발현되도록하는 방법이므로 생산성이 저하되는 단점이 있다. 또한, 제조된 복합섬유는 권축의 발현 상태가 불균일하고 섬유 상호간의 접착성이 약하기 때문에 가공 및 후가공 공정중에서 섬유에 가해지는 외력에 의하여 각 성분간에 이탈이 발생하거나 권축특성이 감소하는 등의 권축 내구성이 부족한 단점을 지니고 있다.However, the first method above, the method of manufacturing a composite fiber of the bishrink mixed fiber method is a method to express the crimp by the air entangled composite after drawing the different heat shrinkability at the time of stretching based on the properties of the polymer of the same composition This has the disadvantage of deteriorating. In addition, the manufactured composite fibers have uneven appearance of crimps and poor adhesion between the fibers, and thus the crimp durability such as separation or reduction of crimp characteristics due to external force applied to the fibers during the processing and post-processing processes. This lacks disadvantages.

두번째 방법인 이종의 폴리머로 조성되는 복합섬유의 제조방법, 예를 들면 폴리에스테르와 폴리아마이드를 사용해서 복합방사법으로 복합섬유를 제조하는 방법은 양성분의 열특성의 불균형, 염색성의 차이에 따른 염색 불균일 및 상호 폴리머간의 낮은 상용성에 기인한 계면에서의 낮은 접착성 때문에 방사후 섬유에 가해지는 외력에 의하여 양성분간에 계면분리현상이 발생하는 등의 문제점을 지니고 있으며, 또한 양성분의 용융점도차에 의해 중공부를 형성시키는 과정에서 용융점도가 큰 물질쪽에 중공부가 편심, 축소(제 4도 참조)되므로 고반발성과 우수한 압축 회복력을 기대하기 힘들다. 최근에는 이성분간의 분리에 따른 상기의 문제점을 해결할 수 있는 방법으로 이성분의 복합사 단면 형태를 사이드 바이 사이드 형태가 아닌 편심 시스 - 코어 형태로 하는 것이 제안(일특개소 52-124925호)되고 있지만, 이 경우는 사이드 바이 사이드형에 비하여 권축 특성이 떨어지고 반발성 및 압축 회복력을 향상시키기 위한 중공부를 형성시킬 수 없고 섬유로 제조하기 위한 방사구금장치도 복잡하며 섬유제조 작업성도 떨어지는 단점을 지니고 있다.The second method, a method for producing a composite fiber composed of heterogeneous polymers, for example, a method for producing a composite fiber by using a composite spinning method using polyester and polyamide, is performed by disproportionation of the thermal properties of the nutrients and dyeing according to the difference in dyeability. Due to the low adhesion at the interface due to the non-uniformity and low compatibility between the polymers, there is a problem such as interfacial separation phenomenon due to the external force applied to the fiber after spinning, and also due to the melt viscosity difference In the process of forming the hollow portion by the hollow portion eccentric, shrinkage toward the material having a large melt viscosity (see Figure 4), it is difficult to expect high repulsion and excellent compression recovery. Recently, as a way to solve the above problems due to separation between two components, it is proposed to make the cross-sectional shape of the composite yarn of two components into an eccentric sheath-core type instead of a side by side shape (Japanese Patent Application Laid-Open No. 52-124925). In this case, compared with the side-by-side type, the crimping characteristics are poor, the hollow part for improving the resilience and compression recovery ability cannot be formed, and the spinneret device for manufacturing the fiber is complicated and the fabrication workability is also poor.

세 번째 방법인 동일계 공중합 폴리머를 사용, 2성분의 특성차를 이용하여 제조하는 권축성 복합섬유는 양성분간의 상용성이 위의 경우 보다는 우수하나 권축성을 향상시키기 위해 두성분 간의 특성차를 높였을 경우에는 상용성이 떨어지며, 방사시 방사구금에서의 곡사 발생등의 제사 공정상의 문제점이 있으며, 또 위의 경우와 마찬가지로 양성분의 용융점도차에 의해 중공부를 형성시키는 과정에서 용융점도가 큰 물질쪽으로 중공부가 편심, 축소되기 때문에 고반발성과 우수한 압축 회복력을 기대하기 힘들다. 또한 방사구금 역시 복합방사형이므로 복잡한 단점을 지니고 있다.The crimped composite fiber manufactured using the same method copolymer, which is the third method using the characteristic difference of two components, has better compatibility than the above, but the characteristic difference between the two components is increased to improve the crimping ability. In this case, the compatibility is low, and there are problems in the weaving process, such as the generation of curvature in the spinneret during spinning. Also, as in the case above, a material having a high melt viscosity in the process of forming the hollow part by the melt viscosity difference of the positive component It is difficult to expect high repulsion and excellent compression recovery because the hollow part is eccentric and reduced. In addition, spinnerets also have complex disadvantages because they are complex.

본 발명은 상술한바와같은 종래기술의 문제점을 해결한 것으로서 기존의 방법과는 달리 단성분을 사용하여 통상의 중공방사구금으로 제조하더라도 이완 열처리 공정에서 자발 고권축 특성과 함께 중공부에 의한 고반발성과 우수한 압축회복력이 발휘됨과 동시에 곡사, 방사작업성 및 상용성의 문제점이 해결되는 제조방법을 제공하는데 그 목적이 있는 것이다.The present invention solves the problems of the prior art as described above, even in the conventional method, unlike the conventional method, even if manufactured by using a conventional hollow spinning decompression high repulsion by the hollow part with spontaneous high crimp characteristics in the relaxation heat treatment process The purpose is to provide a manufacturing method that exhibits excellent compression recovery and at the same time solves the problems of bending, spinning workability and compatibility.

본발명을 상세히 설명하면 아래와 같다.Hereinafter, the present invention will be described in detail.

본발명은 제 1 도의 (가) 및 (나)도에 도시한 바와같이 단일성분의 폴리에스테르폴리머를 사용하고, 이것을 통상의 중공사용방사구금(제 2 도 참조)을 통하여 용융방사한후에 통상의 냉각장치로 냉각, 고화시킴에 있어서, 방사구금과 통상의 냉각장치와의 사이에 모세관냉각장치(1)를 설치하여 방출사조(Y)로부터 근접한 위치에서 모세관냉각장치(1)의 분사공(2)으로부터 냉각공기를 분사시킴을 특징으로 하는 것이다.In the present invention, a single component polyester polymer is used as shown in Figs. 1A and 2B, and after the melt spinning through a common hollow spinning die (see Fig. 2), ordinary cooling is performed. In the cooling and solidification of the device, the capillary cooling device 1 is provided between the spinneret and the normal cooling device, and the injection hole 2 of the capillary cooling device 1 is located near the discharge thread Y. It is characterized by spraying the cooling air from.

본발명은 방출사조의 길이방향으로 모세관냉각장치(1)로 부터 냉각풍을 받는쪽과 받지않는 쪽이 있게되고 그 결과 일차로 냉각을 받는쪽과 받지않는 쪽사이에 배향도와 결정크기의 차이등이 유발되기 때문에 최종적으로는 서로 다른 열수축특성이 발현된다.The present invention has a side receiving and receiving the cooling wind from the capillary cooling device (1) in the longitudinal direction of the discharge thread, and as a result, the difference in orientation and crystal size between the side receiving and cooling the primary cooling As a result, different heat shrinkage characteristics are finally expressed.

본발명에서는 방출사조(Y)와 모세관냉각장치(1)간의 거리, 냉각풍온도와 속도등을 조절하면 방출사조의 양쪽에 발현되는 열수축특성차이의 정도를 조절할 수 있으며, 그 결과 자발권축특성의 정도를 조절할 수 있다.In the present invention, by adjusting the distance between the discharge yarn (Y) and the capillary cooling device (1), the cooling wind temperature and the speed, the degree of difference in the heat shrinkage characteristics expressed on both sides of the discharge yarn can be controlled. You can adjust the degree.

실시예 1~2Examples 1-2

통상의 방법으로 제조한 중량 평균분자량 6.5×104인 폴리에틸렌 테레프탈레이트 중합체를 280℃의 온도로 용융압출하고 방사공이 36개인 제 2 도에 도시된 방사구금을 사용하여 일정 속도로 권취하되 모세관냉각장치(1)의 모세관의 직경은 1.2mm, 분사공(2)의 직경은 0.3mm, 냉각풍의 속도는 60cm/sec, 모세관과 방출사조(Y)의 거리는 1cm(실시예 1)과 2cm(실시예 2)으로 하여 미연신 필라멘트를 제조하고 이를 연신 배율 3.0배, 연신온도 110/190℃의 조건에서 연신공정을 실시하고, 연신후 이완 열처리는 습열(수) 80℃에서 5분간 처리하였다. 이렇게 얻어진 사의 특성 및 방사연신 작업성을 표 1 에 나타내었다.A polyethylene terephthalate polymer having a weight average molecular weight of 6.5 × 10 4 prepared by a conventional method was melt-extruded at a temperature of 280 ° C. and wound at a constant speed using a spinneret shown in FIG. The diameter of the capillary tube (1) is 1.2 mm, the diameter of the injection hole (2) is 0.3 mm, the speed of the cooling wind is 60 cm / sec, and the distance between the capillary tube and the discharge thread Y is 1 cm (Example 1) and 2 cm (Example 2) to prepare an unstretched filament, which was subjected to the stretching step under the conditions of the draw ratio 3.0 times, the stretching temperature 110/190 ℃, the relaxation heat treatment after stretching was treated for 5 minutes at 80 ° C wet water (water). The properties of the yarn thus obtained and the radio-stretching workability are shown in Table 1.

비교실시예Comparative Example

제 1 성분은 고유점도가 0.85인 폴리에틸렌 테레프탈레이트이고, 제 2 성분은 고유점도가 0.52인 폴리에틸렌 테레프탈레이트로서 양성분의 고유점도차가 0.3이고 방사온도에서의 용융점도차가 1,730 포아스인 것을 사용하였다. 방사구금은 제 4 도에 도시된 것과 동일한 것을 사용하였으며, 그외 조건은 위의 실시예와 동일하게 제조하였다.The first component was polyethylene terephthalate having an intrinsic viscosity of 0.85, and the second component was polyethylene terephthalate having an intrinsic viscosity of 0.52, and the intrinsic viscosity difference of the positive component was 0.3 and the melt viscosity difference at the spinning temperature was 1,730 pore. The spinneret was the same as that shown in Figure 4, and other conditions were prepared in the same manner as in the above embodiment.

그 결과는 표 1 에 나타내었다.The results are shown in Table 1.

압축탄성 : KS K 2617(면 이불솜 시험방법)에 준하여 시료를 20×20cm의 크기로 하고 측정하여 압축율과 회복율을 구하였다.Compressive elasticity: According to KS K 2617 (Cotton Duvet Cotton Testing Method), the sample was measured as having a size of 20 × 20 cm and the compressibility and recovery rate were obtained.

건조에 의한 용적 회복율 : KS K 2617(면 이불솜 시험방법)에 준하여 시료를 20×20cm의 크기로 하여 측정하였다.Volume recovery rate by drying: The sample was measured in a size of 20 × 20 cm according to KS K 2617 (cotton duvet cotton test method).

중공율 = (중공부의 단면적)/(섬유의 단면적) × 100 (%)Hollow ratio = (cross-sectional area of hollow part) / (cross-sectional area of fiber) × 100 (%)

권축수 C1, C2 : 시료를 단섬유로 채취하여 가능한 장력이 걸리지 않은 상태에서 0.05g/d의 초하중에서 5cm식 10본을 만든후 현미경으로 확대하여 초하중 권축수(개/inch) C1을 측정하고, 초하중을 제거하여 장력이 걸리지 않은 상태에서 30초 방치한후 외관 권축수 C2를 측정한다.Crimp number C1, C2: Take a sample of short fiber and make 10 5cm-type specimens at the super-load of 0.05g / d without possible tension, and magnify with a microscope to measure the super-load crimp number (inch / inch) C1 After removing the super load, leaving it for 30 seconds under no tension, the external crimp number C2 is measured.

본 발명은 단성분을 사용함으로써 구조가 복잡한 방사구금을 사용하지 않아도 되며, 이성분 사용시 야기되는 곡사, 방사작업성의 저하 및 상용성의 문제점을 함께 해결하고 있다. 또한 이성분을 사용할 때 양성분의 용융점도차때문에 중공부를 형성시키는 과정에서 용융점도가 큰 물질쪽에 중공부가 편심, 축소되는 현상(제 3도 참조)이 방지되므로 중공도의 증가와 함께 고반발성과 우수한 압축 회복력을 갖게 된다.The present invention eliminates the use of a spinneret having a complicated structure by using a single component, and solves the problems of curvature, deterioration in spinning workability and compatibility caused by the use of two components. In addition, when the two components are used, the hollow portion is prevented from being eccentric and contracted on the material having a higher melt viscosity (see FIG. 3) in the process of forming the hollow portion due to the difference in melt viscosity of the positive component. Excellent compression recovery.

제 1 도(가)는 본 발명의 제조공정 개략도.1 is a schematic view of the manufacturing process of the present invention.

제 1 도(나)는 본 발명에 사용되는 냉각장치의 사시도.1 (b) is a perspective view of a cooling apparatus used in the present invention.

제 2 도는 본 발명에 사용되는 방사구금의 횡단면도.2 is a cross-sectional view of the spinneret used in the present invention.

제 3 도는 일반적인 이성분 복합방사법으로 제조한 원사의 횡단면도.3 is a cross-sectional view of a yarn made by a general binary composite spinning method.

제 4 도는 비교실시예에서 사용된 방사구금의 횡단면도.4 is a cross-sectional view of the spinneret used in the comparative example.

Claims (1)

단일성분의 폴리에스테르폴리머를 통상의 중공방사구금으로 용융방사하고 냉각, 고화시킴에 있어서, 통상의 방법으로 냉각, 고화시키기 전에 방사구금의 직하부에서 방출사조의 한쪽에 냉각풍을 모세관냉각장치(1)의 분사공(2)으로부터 분사시킴을 특징으로 하는 모세관냉각장치를 이용한 단성분 중공자발권축섬유의 제조방법.In melt spinning, cooling, and solidifying a single-component polyester polymer with a conventional hollow spinning die, a capillary cooling device is placed on one side of a discharge yarn directly below the spinneret before cooling and solidifying by a conventional method. A method for producing a single component hollow spontaneous crimped fiber using a capillary cooling device, characterized in that spraying from the injection hole (2) of 1).
KR1019970038187A 1997-08-11 1997-08-11 Method for manufacturing single component hollow fiber crimped fiber using capillary cooling device KR100490790B1 (en)

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KR20010019393A (en) * 1999-08-23 2001-03-15 박종계 A method for modifying a synthetic resin yarn by using a difference of cooling temperature and a device thereof
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JPS4420497Y1 (en) * 1967-03-01 1969-09-02
KR840000546A (en) * 1981-06-26 1984-02-25 스테이나 칸스타드, 로즈마리 아이젠링 Method for preparing imidazo [1,2-a] pyridine and pyrazine
JPH06287809A (en) * 1993-03-31 1994-10-11 Teijin Ltd Production of potentially crimping polyester fiber
US5407625A (en) * 1993-11-22 1995-04-18 Wellman, Inc. Method of forming self-texturing filaments and resulting self-texturing filaments
JPH07243123A (en) * 1994-03-03 1995-09-19 Mitsubishi Rayon Co Ltd Production of self-crimping polyester multifilament
JPH08188918A (en) * 1994-12-28 1996-07-23 Toray Ind Inc Hollow polyester fiber for bulky wadding cotton and production of the same fiber
KR0123943B1 (en) * 1995-01-20 1997-11-27 박홍기 Spinnerat for polyester fiber

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JPS4420497Y1 (en) * 1967-03-01 1969-09-02
KR840000546A (en) * 1981-06-26 1984-02-25 스테이나 칸스타드, 로즈마리 아이젠링 Method for preparing imidazo [1,2-a] pyridine and pyrazine
JPH06287809A (en) * 1993-03-31 1994-10-11 Teijin Ltd Production of potentially crimping polyester fiber
US5407625A (en) * 1993-11-22 1995-04-18 Wellman, Inc. Method of forming self-texturing filaments and resulting self-texturing filaments
JPH07243123A (en) * 1994-03-03 1995-09-19 Mitsubishi Rayon Co Ltd Production of self-crimping polyester multifilament
JPH08188918A (en) * 1994-12-28 1996-07-23 Toray Ind Inc Hollow polyester fiber for bulky wadding cotton and production of the same fiber
KR0123943B1 (en) * 1995-01-20 1997-11-27 박홍기 Spinnerat for polyester fiber

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