KR20100113785A - Side by side type polyester conjugated yarn with excellent crimp property - Google Patents

Side by side type polyester conjugated yarn with excellent crimp property Download PDF

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KR20100113785A
KR20100113785A KR1020090032276A KR20090032276A KR20100113785A KR 20100113785 A KR20100113785 A KR 20100113785A KR 1020090032276 A KR1020090032276 A KR 1020090032276A KR 20090032276 A KR20090032276 A KR 20090032276A KR 20100113785 A KR20100113785 A KR 20100113785A
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polymer
monofilament
polyester
slit
composite yarn
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KR1020090032276A
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Korean (ko)
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KR101136694B1 (en
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조대현
한재성
권순택
김희동
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한국섬유개발연구원
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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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • 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
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • 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
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • 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
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/32—Side-by-side structure; Spinnerette packs therefor
    • 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
    • D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
    • 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
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/56—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
    • 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]
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/061—Load-responsive characteristics elastic

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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)
  • Multicomponent Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

PURPOSE: A side-by-side type polyester conjugate thread of excellent winding is provided to realize inherent minute crimp in manufacturing the textile and fabric, thereby giving good flexibility. CONSTITUTION: Two-type polyester polymers are arranged in side-by-side on one surface of monofilament. In the center of one surface of the monofilament, a hollow part of the cylindrical is formed in whole section are compression 5~30% surface. The mono denier of the monofilament is 2.0~4.5. The density of monofilament is 1.30~1.35g/cm^2. The thermal stress of monofilament is 0.55~0.57 g/d. The hot water contraction of mono-filament is 12~14%.

Description

권축성이 우수한 사이드 바이 사이드형 폴리에스테르 복합사{Side by side type polyester conjugated yarn with excellent crimp property}Side by side type polyester conjugated yarn with excellent crimp property}

본 발명은 권축성이 우수한 사이드 바이 사이드형 폴리에스테르 복합사에 관한 것이다. 구체적으로, 본 발명은 양모와 같은 권축특성을 구비하여 열수처리시 자발적으로 나선형 구조가 되어 양모와 같은 촉감과 신축성 등을 발현하는 사이드 바이 사이드형(Side by side type) 폴리에스테르 복합사에 관한 것이다.The present invention relates to a side by side type polyester composite yarn excellent in crimping properties. Specifically, the present invention relates to a side by side type polyester composite yarn having a crimping characteristic such as wool and spontaneously spiraling during hot water treatment to express the feel and elasticity such as wool. .

합성섬유는 천연섬유에 비해 짧은 역사를 가지고 있지만 거듭되는 기술개발로 일부 특성에 있어서는 천연섬유에 못지않은 수준에 도달 하였다. 그러나, 권축성은 합성섬유가 쉽게 발현할 수 없는 특성으로서 양모와 같은 천연섬유의 고유 특성으로 간주되고 있다.Synthetic fibers have a shorter history than natural fibers, but due to repeated technological developments, they have reached levels comparable to natural fibers in some characteristics. However, crimping property is regarded as an inherent property of natural fibers such as wool as a property that synthetic fibers cannot easily express.

합성섬유에 권축성을 부여하는 종래 기술로서는 (ⅰ) 신장특성의 차이가 큰 2종의 합성섬유(원사)를 합사-가연-열고정하여 이수축 복합가연사를 제조하는 방법과, (ⅱ) 직편물 제조시 길이방향으로 신축성이 우수한 폴리우레탄 섬유와 기타 합성섬유를 혼용하는 방법과, (ⅲ) 2종의 폴리머를 복합방사하여 복합섬유를 제조하는 방법들이 알려져 있다.Conventional techniques for imparting crimping properties to synthetic fibers include: (i) a method of producing bispun composite twisted yarn by braiding, twisting and heat-fixing two kinds of synthetic fibers (yarn) having a large difference in elongation characteristics; and (ii) a knitted fabric In manufacturing, a method of mixing a polyurethane fiber having excellent elasticity in the longitudinal direction with other synthetic fibers and (i) a method of producing a composite fiber by complex spinning two kinds of polymers are known.

상기 방법들 중에서 이수축복합가연사를 제조하는 방법은 신장특성의 차이가 큰 2종의 원사를 합사-가연-열고정하여 잠재적인 수축율 차이를 부여하는 방법이다. 즉, 가연영역에서의 변형율과 해연후 잔류 변형율의 차이를 최대한 이용하는 것으로 심사와 초사중 초사가 상대적으로 더 크게 변형되어 심사와 혼섬교락 된다.Among the above methods, a method for producing biaxial composite twisted yarn is a method of imparting a potential difference in shrinkage by braiding-flamming-heat fixing two kinds of yarns having a large difference in elongation characteristics. In other words, by utilizing the difference between the strain in the flammable area and the residual strain after disintegration, the yarns in the screening and superficial yarns are relatively more deformed, leading to screening and intermingling.

상기 이수축복합가연사는 후처리 공정에서 열처리시 심사와 초사 간의 신장특성의 차이로 양호한 권축성을 발현하게 된다. 그러나, 상기방법은 권축의 발현상태가 불균일하고, 심사와 초사의 결합력이 공기교락 등에 의존하기 때문에 비교적 약해 후공정 중에 가해지는 물리력에 의해 한 성분 원사가 이탈, 제거되거나 권축특성이 감소되는 단점이 있었다.The biaxial composite twisted yarn exhibits good crimpability due to a difference in elongation characteristics between the screening and the super yarn during heat treatment in a post-treatment process. However, this method is relatively weak because of the uneven appearance of crimping and the binding force of screening and weaving depends on air entanglement, etc. there was.

또한 상기의 이수축복합가연사의 제조방법은 2종 이상의 원사들을 조합하기 때문에 세섬도화가 어렵고, 이미 생산된 2종 이상의 원사를 다시 해사, 합사해야 하기 때문에 공정이 복잡해지고 제조원가가 상승하게 되는 문제가 있었다.In addition, the above-mentioned manufacturing method of biaxially twisted composite twisted yarns is difficult to fine-tune because it combines two or more kinds of yarns, and the process is complicated and manufacturing costs are increased because two or more kinds of yarns already produced must be dismantled and spun together. there was.

한편, 직편물 제조시 폴리우레탄 섬유와 기타 합성섬유를 혼용하는 방법은 폴리우레탄 섬유의 물리, 화학적 특성과 상이하여 가공이 어려운 단점이 있다. 예를들면 폴리에스테르 섬유는 분산염료를 사용하여 염색하는 반면에 폴리우레탄 섬유는 분산염료로 염색시 세탁견뢰도가 크게 저하되기 때문에 산성염료나 함금속염료로 염색해야 한다.On the other hand, the method of mixing a polyurethane fiber and other synthetic fibers when manufacturing a knitted fabric has a disadvantage that is difficult to process because it is different from the physical and chemical properties of the polyurethane fiber. For example, polyester fibers are dyed with disperse dyes, while polyurethane fibers have to be dyed with acid dyes or metal dyes, since washfastness decreases significantly when dyed with disperse dyes.

따라서, 직편물 제조시 폴리에스테르 섬유와 폴리우레탄 섬유를 혼용하는 경우에는 염색시 클로로벤젠계 또는 메틸나프탈렌계 염색용 캐리어(Carrier)를 반드시 사용해야 하며, 최종 제품은 염소계 표백제에 취약하고 가성소오다에 의해 쉽게 가수분해되는 등의 많은 문제점이 있었다.Therefore, when mixing polyester fibers and polyurethane fibers in the manufacture of knitted fabrics, a chlorobenzene-based or methylnaphthalene-based dyeing carrier must be used for dyeing, and the final product is susceptible to chlorine-based bleaching agents and There are many problems such as being easily hydrolyzed by.

복합방사에 의한 잠재권축사의 제조방법으로는 (ⅰ) 서로 점도가 다른 두 종류의 폴리머를 이용하는 방법과 (ⅱ) 물에 의한 팽윤의 정도가 서로 다른 두 종류의 폴리머를 이용하여 권축을 발현하는 방법이 있다.As a method for producing latent crimping yarns by complex spinning, (i) using two kinds of polymers having different viscosities and (ii) two types of polymers having different degrees of swelling with water to express crimps. There is a way.

이중 팽윤의 정도의 차이에 의한 잠재권축사는 물에 의한 팽윤의 정도가 서로 다른 동일계의 폴리머를 사이드 바이 사이드(Side by side) 형태의 단면을 가지도록 방사하여 두 종류의 폴리머를 계면에서 접착시켜 원사를 제조한 후, 이를 물에 의해 팽윤시켜 팽윤 정도의 차이에 의해 권축을 발현하게 하는 방법이다.Due to the difference in the degree of double swelling, latent crimping yarns emit polymers of the same type having different degrees of swelling by water to have a side by side cross-section to bond the two polymers at the interface. After the yarn is manufactured, it is swelled with water to express the crimp by the difference in the degree of swelling.

상기 방법은 물에 의한 팽윤 정도의 차이를 유발하는 수지를 따로 중합하여야 적용이 가능하며 특히, 팽윤차를 나타내기 위해서는 적어도 한 폴리머가 다른 폴리머보다 이온(Ion)화기를 더 많이 함유하여야 한다.The above method is applicable only when the resin causing the difference in the degree of swelling by water is polymerized separately. In particular, at least one polymer should contain more ionizing groups than the other polymer to show the swelling difference.

다음으로, 서로 다른 점도를 가지는 동일계 폴리머를 이용하여 복합방사형 잠재권축사를 제조하는 방법은 점도가 상이한 두 종류의 폴리머를 사이드 바이 사이드(Side by side) 형태로 방사하여 점도가 다른 두 폴리머를 길이 방향의 계면에서 서로 접착시켜 원사를 제조한 후, 이를 이완상태에서 열처리함으로써 2종의 폴리머의 점도차에 의한 수축응력의 차이에 의해 스프링 형태의 권축을 발현시키는 방식이다.Next, a method of producing a composite spun latent yarn using a homopolymer having different viscosities is to spin two kinds of polymers having different viscosities in the form of side by side so that two polymers having different viscosities are lengthened. After the yarns are bonded to each other at the interface in the direction, the yarns are heat-treated in a relaxed state to express the crimp in the form of a spring due to the difference in shrinkage stress due to the difference in viscosity of the two polymers.

이러한 복합방사에 의한 잠재권축사는 동일계의 폴리머를 사용함에 따라 염색 및 후가공이 용이하며 특유의 부드러운 촉감을 나타내 최근 많이 사용하고 있는 방법이다. 그 결과, 상기와 같이 점도가 상이한 두 종류의 폴리머를 복합방사하는 방법은 종래 여러 방법들의 문제점들을 해결할 수 있고, 작업공정성의 단축, 원가의 절감과 더불어 우수한 신축성, 부드러운 촉감을 발현하는 장점을 가져 직물 뿐만 아니라 편물에도 폭넓게 적용이 가능하다.The latent crimping yarn by the composite spinning is easy to dye and post process by using the polymer of the same type, and is a method that has been widely used in recent years, showing a unique soft touch. As a result, the method of complex spinning two kinds of polymers having different viscosities as described above can solve the problems of various methods, and has the advantages of shortening work processability and cost reduction, and excellent elasticity and soft touch. It is widely applicable to knitting as well as woven fabrics.

상기 방법으로 제조된 종래의 사이드 바이 사이드형 폴리에스테르 복합사는 도 2에 도시된 바와 같이 고점도 폴리에스테르 폴리머(A)와 저점도 폴리에스테르 폴리머(B)가 섬유단면상에 사이드 바이 사이드형으로 접합된 단면을 갖는다. 상기 종래의 사이드 바이 사이드형 폴리에스테르 복합사는 양모와 비교할때 밀도가 상대적으로 높아 탄력감, 촉감 등이 양모보다는 나쁜 문제가 있었다.The conventional side-by-side polyester composite yarn manufactured by the above method is a cross-section in which a high-viscosity polyester polymer (A) and a low-viscosity polyester polymer (B) are bonded side by side on a fiber cross section as shown in FIG. 2. Has The conventional side-by-side polyester composite yarn has a relatively high density compared to wool, the elasticity, the touch and the like has a problem that is worse than wool.

본 발명은 이와 같은 종래의 문제점들을 해결하여 잠재권축성이 우수하여 열수처리시 자발적으로 3차원 나선형 구조를 나타내며, 단면 중앙부에 중공부를 갖고 있어서 촉감, 벌키성, 탄력감 등이 양모와 유사한 사이드 바이 사이드형 폴리에스테르 복합사를 제공하는 것을 기술적과제로 한다.The present invention solves these problems and exhibits a three-dimensional spiral structure spontaneously in hot water treatment due to its excellent crimping properties, and has a hollow portion at the center of the cross section, so that the feel, bulkiness, elasticity, and the like are similar to wool. It is a technical problem to provide a type polyester composite yarn.

이와 같은 과제를 달성하기 위한 본 발명의 사이드 바이 사이드형 폴리에스테르 복합사는, 고유점도 차이가 0.1~0.2㎗/g인 2종의 폴리에스테르계 폴리머(A,B)들이 모노필라멘트의 단면상에 사이드 바이 사이드형(Side by side type)으로 배열되어 있는 모노필라멘트들로 구성되며, 상기 모노필라멘트의 단면 중앙에는 단면 전체 면적 대비 5~30%의 면적으로 원형의 중공부(C)가 형성되어 있고, 상기 모노필 라멘트의 단사섬도가 2.0~4.5데니어이고, 밀도가 1.30~1.35g/㎠, 열응력이 0.55~0.57 g/d 및 열수수축율이 12~14%인 것을 특징으로 한다.In order to achieve such a problem, the side by side type polyester composite yarn of the present invention has two kinds of polyester polymers (A, B) having a difference in intrinsic viscosity of 0.1 to 0.2 dl / g on the cross section of the monofilament. The monofilaments are arranged in a side by side type, and a circular hollow portion C is formed at the center of the cross section of the monofilament with an area of 5 to 30% of the total cross-sectional area. The monofilament has a single yarn fineness of 2.0 to 4.5 denier, a density of 1.30 to 1.35 g / cm 2, a thermal stress of 0.55 to 0.57 g / d, and a thermal contraction rate of 12 to 14%.

이하, 첨부한 도면 등을 통하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

먼저, 본 발명의 사이드 바이 사이드형 폴리에스테르 복합사는 고유점도가 상이한 2종의 폴리에스테르 폴리머(A,B)들이 모노필라멘트의 단면상에 사이드 바이 사이드형(Side by side type)으로 배열되어 있는 모노필라멘트들로 구성된다.First, the side by side type polyester composite yarn of the present invention is a monofilament in which two kinds of polyester polymers (A, B) having different intrinsic viscosities are arranged in a side by side type on a cross section of the monofilament. It consists of

상기 모노필라멘트의 단면 중앙에는 도 3 내지 도 4에 도시된 바와 같이 단면 전체면적 대비 5~30%의 면적으로, 다시 말해 5~30%의 중공율로 원형의 중공부(C)가 형성되어 있다. As shown in FIGS. 3 to 4, a circular hollow portion C is formed at an area of 5 to 30% of the total cross-sectional area, that is to say 5 to 30%, as shown in FIGS. 3 to 4. .

중공율이 상기 범위를 벗어날 경우에는 원사 밀도가 양모의 밀도와 비슷한 수준이 되지 않아 탄력감 등이 저하될 수 있다.If the hollow ratio is out of the above range, the yarn density may not be similar to that of the wool, and thus the elasticity may be lowered.

도 3은 본 발명에 따른 폴리에스테르 복합사의 단면 모식도이며, 도 4는 본 발명에 따른 폴리에스테르 복합사의 단면현미경사진이다.Figure 3 is a schematic cross-sectional view of the polyester composite yarn according to the present invention, Figure 4 is a cross-sectional micrograph of the polyester composite yarn according to the present invention.

상기 모노필라멘트의 단사섬도는 양모와 비슷한 수준인 2.0~4.5데니어이다.The monofilament of the monofilament is 2.0 to 4.5 denier, which is similar to wool.

그로 인해 형태안정성과 탄력감은 더욱 증대된다.As a result, form stability and elasticity are further increased.

또한 본 발명에 따른 폴리에스테르 복합사는 10~16개의 모노필라멘트들로 구성되며 총 섬도는 30~50 데니어인 것이 바람직하다.In addition, the polyester composite yarn according to the present invention is composed of 10 to 16 monofilaments, the total fineness is preferably 30 to 50 denier.

고유점도가 서로 상이한 2종의 폴리에스테르 폴리머(A,B)들 간의 고유점도 차이는 0.1~0.2㎗/g이다. 고유점도 차이가 0.1㎗/g 미만인 경우에는 크림프 형성이 나빠지고, 0.2㎗/g을 초과하는 경우에는 방사성이 저하된다.The difference in intrinsic viscosity between two kinds of polyester polymers (A, B) having different intrinsic viscosities is 0.1 to 0.2 dl / g. Crimp formation worsens when intrinsic viscosity difference is less than 0.1 dl / g, and radioactivity falls when it exceeds 0.2 dl / g.

고유점도가 서로 상이한 2종의 폴리에스테르 폴리머들 중에서 상대적으로 고유점도가 높은 폴리에스에르 폴리머(A, 이하 "고점도 폴리머"라고 한다)의 고유점도는 0.60~0.65㎗/g이고, 상대적으로 고유점도가 낮은 폴리에스테르 폴리머(B, 이하 "저점도 폴리머"라고 한다)의 고유점도는 0.460~0.520인 것이 바람직하다.Among the two polyester polymers having different intrinsic viscosities, the inherent viscosity of the polyester polymer (A, hereinafter referred to as "high viscosity polymer") having a relatively high intrinsic viscosity is 0.60 to 0.65 dl / g, and the intrinsic viscosity is relatively The intrinsic viscosity of the low polyester polymer (B, hereinafter referred to as "low viscosity polymer") is preferably 0.460 to 0.520.

상기 2종의 폴리에스테르 폴리머(A,B)에는 소광제, 자외선 차단제 등의 첨가제를 소량 첨가할 수도 있다.A small amount of additives such as a matting agent and a sunscreen agent may be added to the two kinds of polyester polymers (A and B).

본 발명에 따른 사이드 바이 사이드형 폴리에스테르 복합사는 고유점도가 서로 상이한 2종의 폴리에스테르계 폴리머(A,B)들을 도 1과 같은 공정으로 도 4의 단면형태를 갖도록 복합방사한 후 방사된 복합사를 연신 및 열/처리하여 제조할 수 있다.Side-by-side polyester composite yarn according to the invention spun composite after spun two polyester polymers (A, B) of different intrinsic viscosity to have a cross-sectional shape of Figure 4 by the same process as in Figure 1 It can be produced by stretching and heat / treating yarns.

도 1은 본 발명에 따른 사이드 바이 사이드형 폴리에스테르 복합사를 제조하는 공정개략도이다.1 is a process schematic diagram of manufacturing a side by side type polyester composite yarn according to the present invention.

고유점도가 서로 상이한 2종의 폴리에스테르 폴리머를 2개의 익스트루더(1,2)에 각각 별도로 공급하여 폴리머를 용융시킨 후, 보온부(4)를 가진 방사구금(3)을 통해 용융된 폴리머를 토출시키고, 토출된 용융상태의 폴리머는 냉각부(5)를 통과하면서 섬유형태로 고화된다. Two kinds of polyester polymers having different intrinsic viscosities are separately supplied to the two extruders 1 and 2 to melt the polymer, and then the polymer is melted through the spinneret 3 having the thermal insulation portion 4. Is discharged, and the discharged molten polymer solidifies into a fiber form while passing through the cooling unit (5).

본 발명의 상기 방사구금(3)은 도 5에 도시된 바와 같은 용융상태의 폴리머가 토출되는 방사노즐(20)이 반달형 슬릿모양으로 된 것으로서, 반달형의 고점도 폴리머용 슬릿과 상기 고점도 폴리머용 슬릿보다 면적이 상대적으로 큰 저점도 폴리머용 슬릿이 한 쌍으로 마주보도록 이루어진 2슬릿형 방사구금을 사용하는데, 도 5에 도시된 바와 같이 상기 한 쌍의 슬릿으로 이루어진 방사노즐은 방사구금상에 12쌍이상 형성되어 있다. 본 발명에서 상기 방사노즐(20)은 도 6에 도시된 바와 같이 반달형의 고점도 폴리머용 슬릿(100)과 저점도 폴리머용 슬릿(200) 한 쌍이 마주보도록 이루어지고, 고점도 폴리머용 슬릿(100)은 외측호(110)가 지름 0.39~0.41㎜, 내측호(120)가 지름 0.16~0.17㎜인 반달모양이고, 상기 저점도 폴리머용 슬릿(200)은 외측호(210)가 직경 0.43~0.45㎜, 내측호(220)가 직경 0.13~0.15㎜인 반달모양이며, 상기 양슬릿간의 간격(230)이 0.05~0.07㎜인 것이 원료폴리머의 고유점도차이를 고려할 때 원형의 중공부가 안정되게 형성될 수 있다. 본 발명의 방사구금(3)에서는 상기 고점도 폴리머용 슬릿(100)이 방사구금의 외주면쪽에 위치하고, 저점도 폴리머용 슬릿(200)은 방사구금의 중심쪽으로 형성되도록 이루어질 수 있다.In the spinneret 3 of the present invention, the spinning nozzle 20 in which the polymer in the molten state is discharged as shown in FIG. 5 is formed in the shape of a half moon slit, and the slits for the high moon polymer and the high viscosity polymer slit of the half moon type. A two-slit spinneret is used in which a relatively large area of low viscosity polymer slits face each other in pairs. As shown in FIG. 5, the spinneret consisting of a pair of slits has more than 12 pairs on the spinneret. Formed. In the present invention, the spinning nozzle 20 is made so that a pair of semi-moon-type high viscosity polymer slits 100 and low viscosity polymer slits 200 face each other, as shown in Figure 6, the high viscosity polymer slits 100 The outer arc 110 has a diameter of 0.39-0.41 mm, the inner arc 120 has a half moon shape having a diameter of 0.16-0.17 mm, and the low viscosity polymer slit 200 has an outer arc 210 having a diameter of 0.43-0.45 mm, When the inner arc 220 is a half moon shape having a diameter of 0.13 to 0.15 mm, and the gap 230 between the two slits is 0.05 to 0.07 mm, a circular hollow part may be stably formed when considering the inherent viscosity difference of the raw material polymer. . In the spinneret 3 of the present invention, the high viscosity polymer slit 100 is located on the outer circumferential surface side of the spinneret, and the low viscosity polymer slit 200 may be formed toward the center of the spinneret.

상기 냉각부는 0.3~0.5m/sec 의 냉각풍이 형성되도록 하는 것이 바람직한데, 냉각풍은 원료 폴리머의 Tg 이하의 온도가 바람직하다. The cooling unit is preferably to form a cooling wind of 0.3 ~ 0.5m / sec, the cooling wind is preferably a temperature below the Tg of the raw material polymer.

이후 필라멘트에 오일링(6)을 하고, 제1고뎃로울러(7)와 제2고뎃로울러(8)를 거치면서 필요한 경우에 연신을 한 후 와인더(9)에 감게 된다.After the oil ring (6) to the filament, the first gourd roller (7) and the second gourd roller (8) is stretched if necessary and then wound on the winder (9).

본 발명의 사이드 바이 사이드형 폴리에스테르 복합사는 직편물 제조시 양모와 같이 특유의 미세 크림프를 발현하여 양호한 신축성을 부여하고 부드러운 촉감 과 반발탄력성도 발현하는 장점이 있다.Side-by-side polyester composite yarn of the present invention has the advantage of expressing a unique fine crimp, such as wool in the manufacture of knitted fabrics to impart good elasticity and express a soft touch and resilience.

이하, 실시예 및 비교실시예를 통하여 본 발명을 보다 구체적으로 살펴본다. 그러나 본 발명은 하기 실시예에만 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the present invention is not limited only to the following examples.

[실시예 1]Example 1

고유점도가 0.630㎗/g인 통상의 의류용 폴리에스테르 수지를 고점도 폴리머로 사용하고, 고유점도가 0.495인 폴리에스테르 수지를 저점도 폴리머를 사용하여 이들을 외측호(110) 지름이 0.41㎜, 내측호(120) 지름이 0.17㎜인 반달형 고점도 폴리머용 슬릿(100)과, 외측호(210) 지름이 0.44㎜, 내측호(220) 지름이 0.14㎜인 반달형 저점도 폴리머용 슬릿(200)이 양슬릿간의 간격(230)이 0.07㎜가 되도록 마주보는 2슬릿형 방사구금을 통해 도 3과 같이 단면 중앙에 중공율이 10%인 중공부(C)를 갖는 사이드 바이 사이드 형태로 복합방사한 후, 0.4m/sec 의 냉각풍조건의 냉각부를 통과하고, 권취하여 모노필라멘트의 단사섬도가 2.5데니어인 30데니어/12필라멘트의 폴리에스테르 복합사를 제조하였다.Ordinary clothing polyester resin having an intrinsic viscosity of 0.630 dl / g is used as a high viscosity polymer, and a polyester resin having an intrinsic viscosity of 0.495 is used as a low viscosity polymer, and the outer arc 110 has a diameter of 0.41 mm and an inner arc. (120) Half slit for half moon-type high viscosity polymer slit 100 having a diameter of 0.17 mm, and half moon-type low viscosity polymer slit 200 having an outer arc 210 of 0.44 mm diameter and inner arc 220 diameter of 0.14 mm. After the composite spinning in the form of side-by-side having a hollow portion (C) having a hollow ratio of 10% at the center of the cross section through the two-slit spinnerets facing each other so that the gap 230 is 0.07 mm, 0.4 A composite composite yarn of 30 denier / 12 filaments having a single yarn fineness of 2.5 denier was produced by passing through a cooling section under a cooling wind condition of m / sec.

상기와 같이 제조된 폴리에스테르 복합사는 밀도가 1.33g/㎠로 양모의 밀도와 유사하였고, 열응력이 0.55 g/d 및 열수수축율이 12%로 높아 잠재권축성능이 잘 발현될 수 있으며 그로 인해 탄력감이 우수하였다. The polyester composite yarn prepared as described above had a density of 1.33 g / cm 2, similar to that of wool, and the thermal stress was 0.55 g / d and the heat shrinkage rate was 12%, so that the potential crimp performance can be well expressed, thereby providing a sense of elasticity. Was excellent.

[실시예 2][Example 2]

고유점도가 0.630㎗/g인 통상의 의류용 폴리에스테르 수지를 고점도 폴리머 로 사용하고, 고유점도가 0.495인 폴리에스테르 수지를 저점도 폴리머를 사용하여 이들을 도 3과 같이 단면 중앙에 중공율이 20%인 중공부(C)를 갖는 사이드 바이 사이드 형태로 복합방사한 후, 0.4m/sec 의 냉각풍조건의 냉각부를 통과하고, 권취하여 모노필라멘트의 단사섬도가 4.16데니어인 50데니어/12필라멘트의 폴리에스테르 복합사를 제조하였다.A conventional clothing polyester resin having an intrinsic viscosity of 0.630 dl / g is used as a high viscosity polymer, and a polyester resin having an intrinsic viscosity of 0.495 is used as a low viscosity polymer. After composite spinning in the form of side-by-side having a hollow hollow portion C, a 50-denier / 12-filament polyester having a single yarn fineness of 4.16 denier is passed through a cooling section under a cooling wind condition of 0.4 m / sec. Composite yarns were prepared.

상기와 같이 제조된 폴리에스테르 복합사는 밀도가 1.30g/㎠로 양모의 밀도와 유사하였고, 열응력이 0.57 g/d 및 열수수축율이 14%로서 탄력감이 우수하였다.The polyester composite yarn prepared as described above had a density of 1.30 g / cm 2, similar to that of wool, and had excellent elasticity as thermal stress was 0.57 g / d and thermal shrinkage was 14%.

[비교예 1]Comparative Example 1

고유점도가 0.630㎗/g인 통상의 의류용 폴리에스테르 수지를 고점도 폴러미로 사용하고, 고유점도가 0.495인 폴리에스테르 수지를 저점도 폴리머를 사용하여 이들을 도 2와 같이 단면 중앙에 중공부(C)가 없는 사이드 바이 사이드 형태로 복합방사 및 권취하여 모노필라멘트의 단사섬도가 2.5데니어인 30데니어/12필라멘트의 폴리에스테르 복합사를 제조하였다.Using a polyester resin for clothing having an intrinsic viscosity of 0.630 dl / g as a high viscosity polymer, and using a polyester resin having an intrinsic viscosity of 0.495 using a low viscosity polymer, the hollow portion (C) at the center of the cross section as shown in FIG. A composite yarn of 30 denier / 12 filaments having a single yarn fineness of 2.5 denier was prepared by composite spinning and winding in the form of side by side without.

상기와 같이 제조된 폴리에스테르 복합사는 밀도가 1.38g/㎠으로 양모의 밀도보다 높아 탄력감이 저하되었으며, 열수수축율이 6%로 수축율이 낮은 문제가 있다.Polyester composite yarn prepared as described above has a density of 1.38g / ㎠ higher than the density of the wool has a low sense of elasticity, there is a problem that the shrinkage rate of the heat shrinkage is 6%.

도 1은 본 발명에 따른 폴리에스테르 복합사를 제조하는 일례의 공정 개략도이며,1 is a process schematic diagram of an example of manufacturing a polyester composite yarn according to the present invention,

도 2는 종래 사이드 바이 사이드형 폴리에스테르 복합사의 단면 모식도이며,2 is a schematic cross-sectional view of a conventional side-by-side polyester composite yarn,

도 3은 본 발명에 따른 사이드 바이 사이드형 폴리에스테르 복합사의 단면 모식도이며,3 is a schematic cross-sectional view of the side-by-side polyester composite yarn according to the present invention,

도 4는 본 발명에 따른 사이드 바이 사이드형 폴리에스테르 복합사의 단면현미경사진이며,Figure 4 is a cross-sectional micrograph of the side-by-side polyester composite yarn according to the present invention,

도 5는 본 발명에 따른 사이드 바이 사이드형 폴리에스테르 복합사의 방사장치 중 방사구금의 평면도이며,5 is a plan view of the spinneret in the spinning device of the side-by-side polyester composite yarn according to the present invention,

도 6은 방사구금에 형성되고 2슬릿을 가지는 방사노즐의 모식도이다.6 is a schematic diagram of a spinning nozzle formed in the spinneret and having two slits.

※ 도면의 주요부분에 대한 부호의 설명[Description of Drawings]

1,2 : 익스트루더 3 : 방사구금 1,2: Extruder 3: Spinneret

4 : 보온부 5 : 냉각부4: heat insulation portion 5: cooling portion

6 : 오일링 장치 7 : 제1고뎃로울러6: oil ring device 7: first go roller

8 : 제2고뎃로울러 9 : 와인더 20 : 방사노즐8: second gourd roller 9: winder 20: spinneret

100 : 고점도 폴리머용 슬릿 200 : 저점도 폴리머용 슬릿100: slit for high viscosity polymer 200: slit for low viscosity polymer

A : 고점도 폴리머 B : 저점도 폴리머 C : 중공부A: high viscosity polymer B: low viscosity polymer C: hollow part

Claims (4)

고유점도 차이가 0.1~0.2㎗/g인 2종의 폴리에스테르계 폴리머들이 모노필라멘트의 단면상에 사이드 바이 사이드형(Side by side type)으로 배열되어 있는 모노필라멘트들로 구성되며, 상기 모노필라멘트의 단면 중앙에는 단면 전체 면적 대비 5~30%의 면적으로 원형의 중공부가 형성되어 있고, 상기 모노필라멘트의 단사섬도가 2.0~4.5데니어이고, 밀도가 1.30~1.35g/㎠, 열응력이 0.55~0.57 g/d 및 열수수축율이 12~14%인 것을 특징으로 하는 권축성이 우수한 사이드 바이 사이드형 폴리에스테르 복합사. Two polyester polymers having an inherent viscosity difference of 0.1 to 0.2 dl / g are composed of monofilaments arranged side by side type on the cross section of the monofilament, and the cross section of the monofilament In the center, a circular hollow part is formed with an area of 5 to 30% of the total area of the cross section, and the monofilament has a single yarn fineness of 2.0 to 4.5 denier, a density of 1.30 to 1.35 g / cm 2 and a thermal stress of 0.55 to 0.57 g. A side by side type polyester composite yarn having excellent crimpability, characterized in that / d and the heat shrinkage ratio is 12 to 14%. 제 1항에 있어서, 2종의 폴리에스테르계 폴리머들 중에서 상대적으로 고유점도가 높은 고점도 폴리머의 고유점도는 0.60~0.65㎗/g이고, 상대적으로 고유점도가 낮은 저점도 폴리머의 고유점도는 0.460~0.520㎗/g인 것을 특징으로 하는 권축성이 우수한 사이드 바이 사이드형 폴리에스테르 복합사.The intrinsic viscosity of the high viscosity polymer having a relatively high intrinsic viscosity among the two polyester polymers is 0.60 to 0.65 dl / g, and the intrinsic viscosity of the low viscosity polymer having a relatively low intrinsic viscosity is 0.460 to A side by side type polyester composite yarn having excellent crimpability, characterized by being 0.520 dl / g. 고유점도가 서로 상이한 2종의 폴리에스테르 폴리머를 2개의 익스트루더에 각각 별도로 공급하여 폴리머를 용융시킨 후, 반달형의 고점도 폴리머용 슬릿과 상기 고점도 폴리머용 슬릿보다 면적이 상대적으로 큰 저점도 폴리머용 슬릿이 한 쌍 으로 마주보도록 이루어진 2슬릿형 방사구금을 통해 용융된 폴리머를 토출시키고, 토출된 용융상태의 폴리머를 0.3~0.5m/sec의 냉각풍이 형성되는 냉각부를 통과시키면서 고화한 후, 오일링을 하고 권취하는 것을 특징으로 하는 권축성이 우수한 사이드 바이 사이드형 폴리에스테르 복합사의 제조방법.Two kinds of polyester polymers having different intrinsic viscosities are separately supplied to two extruders to melt the polymers, and then a half-moon type high viscosity polymer slit and a low viscosity polymer with a relatively larger area than the high viscosity polymer slit. The molten polymer is discharged through a two-slit spinneret configured to face each other in a pair of slits, and the solidified liquid is passed through a cooling unit where a cooling air of 0.3 to 0.5 m / sec is formed. Method for producing a side-by-side polyester composite yarn excellent in crimpability, characterized in that the winding. 제 3항에 있어서, 상기 고점도 폴리머용 슬릿은 외측호가 지름 0.39~0.41㎜, 내측호가 지름 0.16~0.17㎜인 반달모양이고, 상기 저점도 폴리머용 슬릿은 외측호가 직경 0.43~0.45㎜, 내측호가 직경 0.13~0.15㎜인 반달모양이며, 상기 양슬릿간의 간격이 0.05~0.07㎜인 것을 특징으로 하는 권축성이 우수한 사이드 바이 사이드형 폴리에스테르 복합사 제조방법.According to claim 3, wherein the high viscosity polymer slit is a half moon shape of the outer arc diameter 0.39 ~ 0.41mm, the inner arc diameter 0.16 ~ 0.17mm, The low viscosity polymer slit is the outer arc diameter 0.43 ~ 0.45mm, inner arc diameter A method of producing a side by side type polyester composite yarn having excellent crimping property, characterized by a half moon shape of 0.13 to 0.15 mm, and an interval between the two slits of 0.05 to 0.07 mm.
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CN102787379A (en) * 2012-08-27 2012-11-21 张家港锦亿化纤有限公司 Preparation method of color-concentrated type composite polyester drawn textured yarn
KR20130078538A (en) * 2011-12-30 2013-07-10 웅진케미칼 주식회사 Polyetherether hollow conjugate fiber and preparing thereof

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KR100206086B1 (en) * 1996-07-27 1999-07-01 한형수 The process for production potentiality crimp polyester section conjugated fiber
JP4205500B2 (en) * 2003-06-26 2009-01-07 ソロテックス株式会社 Hollow polytrimethylene terephthalate composite short fiber and method for producing the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130078538A (en) * 2011-12-30 2013-07-10 웅진케미칼 주식회사 Polyetherether hollow conjugate fiber and preparing thereof
CN102787379A (en) * 2012-08-27 2012-11-21 张家港锦亿化纤有限公司 Preparation method of color-concentrated type composite polyester drawn textured yarn

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