KR20080032594A - Polypropylene false twist yarn and the process of producing thereof - Google Patents

Polypropylene false twist yarn and the process of producing thereof Download PDF

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KR20080032594A
KR20080032594A KR1020070066578A KR20070066578A KR20080032594A KR 20080032594 A KR20080032594 A KR 20080032594A KR 1020070066578 A KR1020070066578 A KR 1020070066578A KR 20070066578 A KR20070066578 A KR 20070066578A KR 20080032594 A KR20080032594 A KR 20080032594A
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South Korea
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polypropylene
feed roller
filament
false twist
twist yarn
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KR1020070066578A
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Korean (ko)
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김상수
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(주)동국가연
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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
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • 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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
    • 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
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
    • 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
    • D10B2501/00—Wearing apparel

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

A method for producing a polypropylene false twist yarn is provided to improve the tactile sensation and the elastic property of the polypropylene false twist yarn while preventing broken filament pieces and hairiness from being generated. A polypropylene filament(1) is supplied by a first feed roller(2). The polypropylene filament is heated by a heater of 120-160°C. The heated polypropylene filament is cooled by a cooling plate(4). The cooled polypropylene filament is false-twisted at a twist ratio of 1.25-2.5 by a false-twisting machine(5). The false-twisted polypropylene filament is passed through a second feed roller(6) at a draw ratio of 1.4-2.0, and passed through a third feed roller(7). The processed polypropylene filament is treated with an oiling agent, and then wound around a winding drum(9). Further, an overfeed rate by speed difference between the second feed roller and the third feed roller is 6.0 to 12.0.

Description

폴리프로필렌 가연사 및 그 제조방법{Polypropylene False Twist Yarn And The Process of Producing Thereof}Polypropylene False Twist Yarn And The Process of Producing Thereof}

본 발명은 폴리프로필렌 가연사 및 그 제조방법에 관한 것으로서 항균성 및 소수성이 우수한 폴리프로필렌 필라멘트를 이용하여 벌키감 및 신축성이 우수하여 고급 스포츠 의류용 직물에 사용할 수 있는 폴리프로필렌 가연사를 제공하는 것을 그 목적으로 한다. The present invention relates to a polypropylene twisted yarn and a method for manufacturing the same, to provide a polypropylene twisted yarn that can be used in high-quality sports apparel fabrics having excellent bulkiness and elasticity by using a polypropylene filament having excellent antibacterial and hydrophobic properties. The purpose.

일반적으로, 폴리프로필렌 필라멘트는 합성필라멘트의 일종으로서, 강도가 우수하며, 혼방성이 좋은 소수성 필라멘트로서, 다른 합성필라멘트와는 달리, 동일한 중량의 원단일지라도 비중이 낮으므로 벌키(bulky)성이 우수하고, 흡수율이 매우 낮아 피부는 항상 건조한 상태를 유지하여 운동 중이나 후에도 항상 쾌적함을 유지할 수 있으며, 또한 천연/합성 필라멘트를 통틀어 가장 낮은 열전도율로 인하여 열손실이 적고, 이로 인해 체온을 일정하게 유지시켜 주게 되고, 수분이 필라멘트 내부로 침투하지 않게 되므로 그냥 흔들어 떨어뜨려 제거할 수 있게 되며, 세탁이 용이하며 건조 속도가 빠르다. In general, polypropylene filament is a kind of synthetic filament, which is excellent in strength and blended hydrophobic filament, and unlike other synthetic filaments, it has excellent bulky property because the specific gravity is low even in the fabric of the same weight. It has a very low absorption rate, so the skin always stays dry, so you can always feel comfortable during and after exercise. Also, the heat loss is low due to the lowest thermal conductivity throughout the natural / synthetic filament, which keeps the body temperature constant. As moisture does not penetrate into the filament, it can be removed simply by shaking it off, easy to wash and fast to dry.

또한, 세균, 곰팡이, 박테리아 등이 서식할 수 있는 환경을 제공하지 않으므 로 이것으로부터 안전하고, 비활성의 폴리머이므로 냄새, 핏자국, 얼룩, 화학약품 등에 반응하지 않으며, 정전기에 대해서도 매우 안정적이다. In addition, because it does not provide an environment where bacteria, fungi, bacteria, etc. can inhabit, it is safe and inert polymer, so it does not react to odors, blood stains, stains, chemicals, etc., and is very stable against static electricity.

한편, 상기 폴리프로필렌을 포함하는 폴리올레핀계 폴리머는 구성 분자가 탄화수소로만 이루어져 있으므로 극성이 없어 소수성이 크므로 카펫이나 가구용 등과 같은 홈 인테리어 용도로 이용 가능하며, 극성오염물질에 대한 저항성이 매우 높다.On the other hand, since the polyolefin-based polymer including the polypropylene is composed of only hydrocarbons, it has no polarity and thus can be used for home interior applications such as carpet or furniture, and has high resistance to polar pollutants.

이러한 특징을 갖는 폴리프로필렌 필라멘트는 융점이 낮기 때문에 의류용으로는 한계가 있으나, 수분수송에 이점이 있는 위킹(wicking) 특성을 이용하여 가벼운 니트류로서만 제한적인 성장을 보이고 있다. Polypropylene filament having such characteristics has a limited melting point for clothing because of its low melting point, but has shown only limited growth as light knits by using wicking properties which are advantageous for water transportation.

이는 폴리프로필렌 필라멘트를 의류용으로 사용할 경우, 폴리프로필렌의 열적특성, 일광특성, 염색특성 등, 원사 자체의 단점으로 인하여 니트 분야를 중심으로 소극적이면서 제한적으로 그 용도 전개가 이루어지고 있는 실정이다. When polypropylene filament is used for clothing, due to the disadvantages of the yarn itself, such as thermal properties, daylight properties, dyeing properties of polypropylene, the development of its use has been made passively and limitedly in the knit sector.

최근에는 열적 및 일광 특성 등에 문제점이 있는 폴리프로필렌 필라멘트의 단점을 보완한 개량형 폴리프로필렌 필라멘트가 개발되어 의류 소재로 그 용도 범위를 확대하는 등 상기 폴리프로필렌 필라멘트에 대한 관심이 날로 증가하고 있다.Recently, an improved polypropylene filament has been developed that supplements the disadvantages of polypropylene filaments having problems with thermal and daylight characteristics, and thus, interest in the polypropylene filament has been increasing day by day, such as expanding its use range as a garment material.

그러나, 폴리프로필렌 필라멘트는 폴리프로필렌의 낮은 융점으로 인한 가연공정의 어려움이 있었고, 특히 의류용으로 사용할 수 있을 정도로 충분한 강도 및 신도를 부여하기가 어려워 가연사용으로는 활용하지는 못하고 있는 실정이다. However, the polypropylene filament has a difficulty in the combustion process due to the low melting point of the polypropylene, and in particular, it is difficult to give sufficient strength and elongation to be used for clothing, and thus it is not utilized for the use of combustibles.

따라서, 본 발명에서는 기존의 폴리프로필렌 필라멘트의 문제점을 극복하여 폴리프로필렌 가연사를 제공하는 것을 그 기술적과제로 한다.Therefore, in the present invention to overcome the problems of the existing polypropylene filament to provide a polypropylene false twist yarn as its technical problem.

이에 본 발명자는 폴리프로필렌의 방사방법의 개선을 통해 가연사용으로 사용할 수 있는 필라멘트를 사용하여 폴리프로필렌 가연사를 제조함으로써 각종 스포츠웨어 및 기능성 의복 분야에 활용할 수 있었다.Accordingly, the present inventors have been able to utilize polypropylene twisted yarns using filaments that can be used for the use of combustibles by improving the spinning method of polypropylene, and thus have been utilized in various sportswear and functional clothing fields.

그러므로 본 발명에서는 폴리프로필렌 필라멘트를 제1피드롤러로 공급하고 온도 120∼160℃로 히터에서 열처리한 후 냉각판을 거치면서 냉각하고, 가연비 1.25∼2.5로 가연장치에 의해 가연을 한 후 연신비 1.4∼2.0으로 제2피드롤러를 통과시킨 후, 제3피드롤러를 통과시키고 유제부여하고 권취하는 것을 특징으로 하는 폴리프로필렌 가연사의 제조방법이 제공된다.Therefore, in the present invention, the polypropylene filament is supplied to the first feed roller, heat treated at a heater at a temperature of 120 to 160 ° C., and then cooled by passing through a cooling plate. After passing the second feed roller at ˜2.0, a method for producing polypropylene false twisted yarn is provided, which is passed through the third feed roller, emulsified and wound.

또한, 본 발명에 의하면 강도 3.0~4.0 g/d 및 신도 20.0~34.0%인 것을 특징으로 하는 폴리프로필렌 가연사가 제공된다.Moreover, according to this invention, the polypropylene false twist yarn provided with intensity 3.0-4.0 g / d and elongation 20.0-34.0% is provided.

이하 본 발명을 보다 상세히 설명하기로 한다.Hereinafter, the present invention will be described in more detail.

본 발명은 항균성 및 소수성이 우수한 폴리프로필렌 필라멘트를 이용하여 벌키감 및 신축성이 우수하여 고급 스포츠 의류용 직물에 사용할 수 있는 폴리프로필렌 가연사를 제공하기 위한 것이다. 본 발명의 폴리프로필렌 가연사의 제조방법을 도 1을 바탕으로 설명하면 다음과 같다.The present invention is to provide a polypropylene false twist yarn that can be used in high-quality sports clothing fabrics with excellent bulkiness and elasticity by using a polypropylene filament excellent in antibacterial and hydrophobic properties. Referring to Figure 1 based on the manufacturing method of polypropylene false twisted yarn of the present invention.

먼저 폴리프로필렌 필라멘트(1)를 제1피드롤러(2)로 공급하고 온도 120∼160 ℃로 히터(3)에서 열처리한 후 냉각판(4)을 거치면서 냉각하고, 가연비 1.25∼2.5로 가연장치(5)에 의해 가연을 한다. 상기 폴리프로필렌 필라멘트는 폴리프로필렌 부분연신 필라멘트(POY) 또는 폴리프로필렌 완전연신 필라멘트(FDY)를 사용할 수 있는데, 폴리프로필렌 부분연신 필라멘트를 사용하는 경우에는 폴리프로필렌 완전연신 필라멘트를 사용하는 경우보다 제조되는 가연사가 더욱 벌키해지는 특징이 있다. 상기 폴리프로필렌 부분연신 필라멘트(POY)는 강도 3.0~4.2 g/dpf, 신도 150~180%인 것을 사용하는 것이 바람직하며, 상기 폴리프로필렌 완전연신 필라멘트(FDY)는 강도 3.5~5.0 g/dpf, 신도 70~90%인 것을 사용하는 것이 바람직하다.First, the polypropylene filament (1) is supplied to the first feed roller (2), heat-treated in the heater (3) at a temperature of 120 to 160 ℃, then cooled through the cooling plate (4), combustible with a fuel ratio of 1.25 to 2.5 The device 5 burns. The polypropylene filament may be polypropylene partially stretched filament (POY) or polypropylene full stretched filament (FDY), but the use of polypropylene partially stretched filament is a combustible manufactured than when using polypropylene full stretched filament There is a characteristic that the yarn becomes more bulky. The polypropylene partially stretched filament (POY) is preferably used having a strength of 3.0 ~ 4.2 g / dpf, elongation 150 ~ 180%, the polypropylene fully stretched filament (FDY) is 3.5 ~ 5.0 g / dpf strength, elongation It is preferable to use 70-90%.

상기 히터(3)에서의 열처리온도는 120∼160℃가 바람직한데, 120℃미만에서는 권축회복율이 높은 가연사가 요구하는 크림프의 안정화에 문제점이 있으며, 160℃를 초과하는 경우에는 원사 용융으로 인한 원사 물성이 변화하는 문제점이 있다. 가연장치의 가연비는 공급되는 폴리프로필렌 필라멘트의 물성에 따라 차이가 있을 수 있는데, 1.25∼2.5인 것이 바람직한데, 1.5 미만에서는 사도떨림이나 사도이탈로 인한 사도불안정으로 가연사의 형태안정성(미가연)에 문제점이 있으며, 2.5를 초과하는 경우에는 사절 및 모우 등의 문제점이 있다. 부분연신 필라멘트를 공급하는 경우의 가연비는 1.5∼2.5, 완전연신 필라멘트의 경우의 가연비는 1.25~1.45로 정하는 것이 바람직하다. 연신비는 크림프율과 관계가 있으며 1.4∼2.0인 것이 바람직한데, 1.4 미만에서는 크림프 발현의 문제점이 있으며, 2.0을 초과하는 경우에는 미해연 및 사절발생등의 문제점이 있다.The heat treatment temperature of the heater 3 is preferably 120 to 160 ° C. If the heat treatment temperature is lower than 120 ° C, there is a problem in stabilizing the crimp required by the high twist rate of crimping yarn. There is a problem that the physical properties change. The combustible ratio of the combustor may vary depending on the properties of the polypropylene filament supplied. It is preferable that it is 1.25 to 2.5, and below 1.5, the form stability of the combustible yarn is unstable due to the apostle oscillation or the deviation of the apostle. There is a problem, and if it exceeds 2.5, there are problems such as trimming and moor. The flammability ratio in the case of supplying the partially drawn filament is 1.5 to 2.5, and the flammability ratio in the case of the fully drawn filament is preferably set to 1.25 to 1.45. The draw ratio is related to the crimp rate and is preferably 1.4 to 2.0. If the draw ratio is less than 1.4, there is a problem of crimp expression.

가연장치 통과 후 연신비 1.4∼2.0이 되도록 제2피드롤러(6)를 통과시키는데, 그 이유는 권축회복율의 안정성은 낮은 신도에서 이루어지므로 사가공상의 모우가 발생이 되지 않는 한계치로 연신비를 설정한다. After passing through the combustor, the second feed roller 6 is passed through so as to have a draw ratio of 1.4 to 2.0. The reason for this is that the stability of the crimp recovery rate is set at a low elongation, so that the draw ratio is set to a limit that does not occur in silt.

이후 제3피드롤러(7)를 통과시키고 유제부여부(8)에서 유제처리하고 권취드럼(9)에 권취하여 본 발명의 폴리프로필렌 가연사를 제조한다. After passing through the third feed roller (7), the emulsion treatment in the emulsification unit (8) and wound in a winding drum (9) to produce a polypropylene false twist yarn of the present invention.

본 발명에서는 특히 롤러간의 오버피드율을 잘 조정하는 것이 특히 바람직한데, 제2피드롤러와 제3피드롤러간의 속도차에 의한 오버피드율을 6.0~12.0으로 조절함으로써 히터와 냉각판(cooling zone)을 거친 사도를 자연냉각시켜 크림프상태를 안정시킬 수 있다. 특히 DPF가 1 미만인 사종의 경우에는 상기 오버피드율을 9.0~11.0으로 조절하는 것이 더욱 바람직하다.In the present invention, it is particularly preferable to adjust the overfeed rate between the rollers well, and to adjust the overfeed rate by the speed difference between the second feed roller and the third feed roller to 6.0 to 12.0, thereby heating the heater and the cooling zone. By cooling the rough apostles naturally, the crimp state can be stabilized. In particular, in the case of the seedlings having a DPF of less than 1, it is more preferable to adjust the overfeed rate to 9.0 to 11.0.

상기 오버피드율은 다음과 같이 계산된다.The overfeed rate is calculated as follows.

오버피드율(%) ={(제2피드롤러표면속도 - 제3피드롤러표면속도)/ 제2피드롤러표면속도}×100Overfeed rate (%) = {(2nd feed roller surface speed-3rd feed roller surface speed) / 2nd feed roller surface speed} × 100

일반적으로 나일론 또는 폴리에스테르 가연사의 경우에는 정전기 발생에 의한 가연사의 형태안정성을 향상시키기 위해 교락공정을 필수적으로 행하나, 본 발명의 폴리프로필렌의 경우에는 정전기가 발생하지 않으므로 교락공정을 필수적으로 행하지는 않는다. 경우에 따라서는 해사성을 향상시키기 위해 상기 제2피드롤러(6)와 제3피드롤러(7) 사이에 공기압 0.5 ~ 3.0㎏/㎠의 조건으로 교락공정을 추가할 수 있다.Generally, in the case of nylon or polyester false twisted yarn, an entanglement process is essentially performed to improve the morphological stability of the false twisted yarn by static electricity generation. However, in the polypropylene of the present invention, the entanglement process is not necessarily performed. Do not. In some cases, an interlacing step may be added between the second feed roller 6 and the third feed roller 7 under conditions of 0.5 to 3.0 kg / cm 2 of air pressure in order to improve the sea resolution.

본 발명에 의하면 강도 3.0~4.0 g/dpf 및 신도 20.0~34.0%인 폴리프로필렌 가연사가 제공된다.According to the present invention, polypropylene false twist yarn having a strength of 3.0 to 4.0 g / dpf and an elongation of 20.0 to 34.0% is provided.

또한, 상기 폴리프로필렌 가연사는 치수변화율 -0.6~-1.5% 및 비수수축율 5.5~5.9%인 것이 제공될 수 있다.In addition, the polypropylene false twist yarn may be provided with a dimensional change rate of -0.6 ~ 1.5% and a non-shrinkage rate of 5.5 ~ 5.9%.

그러므로 본 발명에 의하면 폴리프로필렌 자체의 낮은 융점으로 인해 가연사를 제조하기 어려웠던 폴리프로필렌 필라멘트를 이용하여 사절이나 모우의 발생을 최소로 하면서 촉감이 부드러우며 신축성이 우수하며, 비수수축율이 낮아 후가공시 안정성을 유지할 수 있는 폴리프로필렌 가연사를 제공할 수 있다. Therefore, according to the present invention, polypropylene filament, which has been difficult to manufacture false twisted yarn due to the low melting point of polypropylene itself, minimizes the generation of trimming or wool, and is soft to the touch, excellent in elasticity, and low shrinkage rate. It is possible to provide a polypropylene false twist yarn capable of maintaining.

이하 다음의 실시 예에서는 본 발명의 폴리프로필렌 가연사의 제조방법에 대한 비한정적인 예시를 하고 있다.The following examples are given as non-limiting examples of the method for producing polypropylene false twisted yarn of the present invention.

[실시예 1]Example 1

폴리프로필렌 부분연신 필라멘트(네필라, POY 75d/32fila, 동국가연사산, 강도 3.7g/dpf), 신도 165%)를 제1피드롤러로 공급하고 표 1과 같은 조건으로 열처리한 후 냉각판을 거치면서 냉각하고, 가연을 한 후 제2피드롤러를 통과시킨 후 제3피드롤러를 통과시키고 유제부여하고 권취하여 폴리프로필렌 가연사(50d/32fila)를 제조하였다.Polypropylene partially stretched filament (Nepila, POY 75d / 32fila, Dongkuk Co., Ltd., strength 3.7g / dpf), elongation 165% is supplied to the first feed roller, heat treated under the conditions shown in Table 1, and then cooled. After cooling, burning, and passing through the second feed roller, and then passed through the third feed roller, emulsified and wound to prepare a polypropylene twisted yarn (50d / 32fila).

구 분division 연신비Elongation ratio 히터온도Heater temperature 가연비Fuel economy 오버피드율Overfeed rate 조 건Condition 1.91.9 140℃140 ℃ 1.71.7 10.510.5

[실시예 2]Example 2

폴리프로필렌 완전연신 필라멘트(네필라, FDY 70d/32fila, 동국가연사산, 강도 3.9g/dpf), 신도 80%)를 공급하고 가연비를 1.35로 조절하는 것을 제외하고는 실시예 1과 동일한 조건으로 폴리프로필렌 가연사를 제조하였다.Under the same conditions as in Example 1, except that the polypropylene fully stretched filament (Nepila, FDY 70d / 32fila, Dongguk Co., Ltd., strength 3.9g / dpf), elongation 80% was adjusted and the fuel consumption was adjusted to 1.35. Polypropylene twisted yarn was produced.

[실시예 3]Example 3

제2피드롤러를 통과시킨 후 공기압 1.2㎏/㎠의 조건으로 교락공정을 행한 후 제3피드롤러를 통과시키는 것을 제외하고는 실시예 1과 동일한 조건으로 폴리프로필렌 가연사(50d/32fila)를 제조하였다.A polypropylene false twisted yarn (50d / 32fila) was manufactured under the same conditions as in Example 1, except that the second feed roller was passed through an interlacing process under a condition of 1.2 kg / cm 2 of air pressure and then passed through a third feed roller. It was.

상기 실시예들에 의해 제조한 가연사의 특성을 파악하기 위해 인장강도는 KS K 0215:2002 강도 및 신도 시험방법에 의하여 시험하고, 치수변화율은 KS K 0423: 2002법, 20±2℃. 10분침지, 망건조)에 의하여고, 비수수축율은 상기 가연사를 일정길이(ℓ0)가 되도록 릴에 감아 98℃의 열수에 30분간 무장력으로 끓인 후의 길이(ℓ1)를 재어 다음식에 의해 측정하여 표 2에 나타내었다.Tensile strength is tested by the KS K 0215: 2002 strength and elongation test method, and the rate of dimensional change is KS K 0423: 2002 method, 20 ± 2 ° C. 10 minutes immersion, net drying), and the non-shrinkage rate is wound around the reel to a certain length (ℓ 0 ) and boiled with hot water at 98 ℃ hot water for 30 minutes (L 1 ) to measure the length It was measured and shown in Table 2.

비수수축율 = [(ℓ0-ℓ1)/ℓ0]×100Non-shrinkage ratio = [(ℓ 0 -ℓ 1 ) / ℓ 0 ] × 100

구 분division 신도(%)Elongation (%) 강도(g/dpf)Strength (g / dpf) 치수변화율(%)Dimensional rate of change (%) 비수수축율(%)Non-shrinkage rate (%) 실시예 1Example 1 30.030.0 3.73.7 -1.0-1.0 5.85.8 실시예 2Example 2 28.428.4 3.93.9 -0.9-0.9 5.65.6 실시예 3Example 3 31.431.4 3.73.7 -1.2-1.2 5.75.7

도 1은 본 발명의 폴리프로필렌 가연사를 제조하는 공정의 개략도이다. 1 is a schematic diagram of a process for producing a polypropylene false twist yarn of the present invention.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 폴리프로필렌 필라멘트 2 : 제1피드롤러1: polypropylene filament 2: first feed roller

3 : 히터 4 : 냉각판3: heater 4: cooling plate

5 : 가연장치 6 : 제2피드롤러 5: flammable device 6: second feed roller

7 : 제3피드롤러 8 : 유제부여부 7: third feed roller 8: emulsification

9 : 권취드럼9: winding drum

Claims (9)

폴리프로필렌 필라멘트를 제1피드롤러로 공급하고 온도 120∼160℃로 히터에서 열처리한 후 냉각판을 거치면서 냉각하고, 가연비 1.25∼2.5로 가연장치에 의해 가연을 한 후 연신비 1.4~2.0으로 제2피드롤러를 통과시킨 후, 제3피드롤러를 통과시키고 유제부여하고 권취하는 것을 특징으로 하는 폴리프로필렌 가연사의 제조방법.The polypropylene filament is supplied to the first feed roller, heat treated at a heater at a temperature of 120 to 160 ° C., and then cooled by passing through a cooling plate. After passing through the two feed rollers, passing through the third feed roller, emulsified and wound, the production method of polypropylene false twist yarn. 제 1항에 있어서, 제2피드롤러와 제3피드롤러간의 속도차에 의한 오버피드율은 6.0~12.0인 것을 특징으로 하는 폴리프로필렌 가연사의 제조방법.The method of claim 1, wherein the overfeed rate due to the speed difference between the second feed roller and the third feed roller is 6.0 to 12.0. 제 1항에 있어서, 제2피드롤러와 제3피드롤러간의 속도차에 의한 오버피드율은 9.0~11.0인 것을 특징으로 하는 폴리프로필렌 가연사의 제조방법.The method of claim 1, wherein the overfeed rate due to the speed difference between the second feed roller and the third feed roller is 9.0 to 11.0. 제 1항 또는 제 2항에 있어서, 상기 제2피드롤러와 제3피드롤러 사이에 공기압 0.5 ~ 3.0㎏/㎠의 조건으로 교락공정을 추가하는 것을 특징으로 하는 폴리프로필렌 가연사의 제조방법.The method of claim 1 or 2, wherein an interlacing step is added between the second feed roller and the third feed roller under a condition of 0.5 to 3.0 kg / cm 2 of air pressure. 제 1항에 있어서, 상기 폴리프로필렌 필라멘트는 폴리프로필렌 부분연신 필라멘트 또는 폴리프로필렌 완전연신 필라멘트이며, 부분연신필라멘트인 경우의 가연비는 1.5∼2.5, 완전연신 필라멘트의 경우의 가연비는 1.25~1.45인 것을 특징으로 하는 폴리프로필렌 가연사의 제조방법.The method according to claim 1, wherein the polypropylene filament is a polypropylene partially drawn filament or a polypropylene fully drawn filament, the combustibility ratio of the partially drawn filament is 1.5 to 2.5, the combustibility ratio of the fully drawn filament is 1.25 to 1.45 Method for producing a polypropylene false twist yarn, characterized in that. 제 5항에 있어서, 상기 폴리프로필렌 부분연신 필라멘트(POY)는 강도 3.0~4.2 g/dpf, 신도 150~180%인 것을 특징으로 하는 폴리프로필렌 가연사의 제조방법.6. The method according to claim 5, wherein the polypropylene partially stretched filament (POY) has a strength of 3.0 to 4.2 g / dpf and an elongation of 150 to 180%. 제 5항에 있어서, 상기 폴리프로필렌 완전연신 필라멘트(FDY)를 이용하여 강도 3.5~5.0 g/dpf, 신도 70~90%인 것을 특징으로 하는 폴리프로필렌 가연사의 제조방법.The method of claim 5, wherein the polypropylene fully stretched filament (FDY) using a strength of 3.5 ~ 5.0 g / dpf, elongation 70 ~ 90% characterized in that the manufacturing method of polypropylene twisted yarn. 강도 3.0~4.0 g/dpf 및 신도 20.0~34.0%인 것을 특징으로 하는 폴리프로필렌 가연사.Polypropylene false twist yarn characterized in that the strength of 3.0 ~ 4.0 g / dpf and elongation 20.0 ~ 34.0%. 제 8항에 있어서, 상기 폴리프로필렌 가연사는 치수변화율 -0.6~-1.5% 및 비수수축율 5.5~5.9%인 것을 특징으로 하는 폴리프로필렌 가연사.The polypropylene twisted yarn according to claim 8, wherein the polypropylene twisted yarn has a dimensional change rate of -0.6 to 1.5% and a non-shrinkage ratio of 5.5 to 5.9%.
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