KR20220072901A - Method of manufacturing liquid crystal complex yarn having excellent cut-resistance property - Google Patents
Method of manufacturing liquid crystal complex yarn having excellent cut-resistance property Download PDFInfo
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- KR20220072901A KR20220072901A KR1020200159438A KR20200159438A KR20220072901A KR 20220072901 A KR20220072901 A KR 20220072901A KR 1020200159438 A KR1020200159438 A KR 1020200159438A KR 20200159438 A KR20200159438 A KR 20200159438A KR 20220072901 A KR20220072901 A KR 20220072901A
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- 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
- D01D5/34—Core-skin structure; Spinnerette packs therefor
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- 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
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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
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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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
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
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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
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- 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
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
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- 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
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
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- 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
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
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- 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
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
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- 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
- D02G3/442—Cut or abrasion resistant yarns or threads
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H1/00—Personal protection gear
- F41H1/02—Armoured or projectile- or missile-resistant garments; Composite protection fabrics
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- 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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- 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
- D10B2401/063—Load-responsive characteristics high strength
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- 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
- D10B2501/04—Outerwear; Protective garments
Abstract
본 발명은 강도와 탄성이 우수하여 내 절단성과 함께 외부 충격에 쉽게 깨어지지 않는 액정섬유를 이용하여 복합사를 제조하는 방법에 관한 것이다. 본 발명은 액정섬유의 표면에 수지를 코팅하여 심사로 사용함에 따라, 이에 감겨지는 초사가 액정섬유 표면으로부터 슬립되지 않고 충분한 마찰력으로 정착된다. 이에 따라, 본 발명은 방검복, 방검 조끼, 보호용 장갑 등과 같은 안전보호복으로 사용되어 날카롭고 뾰족한 물체로부터 신체를 보호할 수 있다. The present invention relates to a method for manufacturing a composite yarn by using a liquid crystal fiber having excellent strength and elasticity, which is not easily broken by an external impact, along with cutting resistance. According to the present invention, as the surface of the liquid crystal fiber is coated with a resin and used as a screening, the yarn wound on it does not slip from the surface of the liquid crystal fiber and is fixed with sufficient frictional force. Accordingly, the present invention can be used as a safety protective suit, such as a sword protection suit, a sword vest, protective gloves, etc. to protect the body from sharp and pointed objects.
Description
본 발명은 내 절단성이 우수한 복합사를 제조하는 방법에 관한 것으로, 보다 상세하게는 강도와 탄성이 우수한 액정섬유를 이용하여 복합사를 제조하는 방법에 관한 것이다. The present invention relates to a method for manufacturing a composite yarn having excellent cut resistance, and more particularly, to a method for manufacturing a composite yarn using a liquid crystal fiber having excellent strength and elasticity.
위험업무를 수행하는 경찰이나 군인, 다양한 산업현장에서 칼과 같이 날카롭고 뾰족한 물체에 노출된 작업자들이 보호하도록 방검복, 보호장갑 등과 같은 섬유제품이 착용되고 있다. Textile products such as sword-proof suits and protective gloves are being worn to protect police, soldiers, and workers exposed to sharp and sharp objects such as knives in various industrial sites.
이와 같은 섬유제품은 칼 등에 절단되지 않도록 높은 강도를 가지는 아라미드, 초고분자량 폴리에틸렌 섬유, 유리섬유와 같은 기능성 섬유를 사용하는데, 이들 기능성 섬유는 강도는 우수하나 촉감이 뻣뻣하고 염색성이 좋지 못하여 폴리에스테르나 나일론 섬유와 합사하여 사용되고 있다.Such textile products use functional fibers such as aramid, ultra-high molecular weight polyethylene fibers, and glass fibers that have high strength so as not to be cut with a knife. It is used by braiding with nylon fibers.
그 예로 특허등록 제10-1460855호에는 심사인 초고분자량 폴리에틸렌 섬유에 초사인 나일론사를 에어로 교락시킨 복합사가 개시되어 있는데, 이와 같은 복합사는 복합사 표면이 치밀하지 못하여 내 절단성능이 충분하지 않다.For example, Patent Registration No. 10-1460855 discloses a composite yarn in which superfine nylon yarns are entangled with ultra high molecular weight polyethylene fibers under examination. Such composite yarns do not have a dense surface and thus have insufficient cutting resistance.
다른 예로, 대한민국 특허등록 제10-1625614호에는 심사인 유리섬유에 초사인 나일론 또는 폴리우레탄가 둘러싸는 커버링사로 이루어진 고강도 섬유가 개시되어 있다. As another example, Korean Patent Registration No. 10-1625614 discloses a high-strength fiber composed of a covering yarn in which super-fine nylon or polyurethane surrounds glass fiber, which is an examination.
이와 같은 커버링사는 심사인 유리섬유가 강도는 높으나 표면이 매끈하여 미끄러움 특성(slippiness)을 가져, 이에 감겨지는 초사가 표면에 견고하게 정착되지 않고 슬립되는 경우가 많아 커버링사의 제조 시 작업성이 좋지 못하다. 또한, 심사인 유리섬유 특성상 충격에 의하여 깨지는 경우 비산하여 사람이 다칠 위험도 있다.In such a covering yarn, the glass fiber, which is the core material, has high strength, but the surface is smooth and slippery. Can not do it. In addition, due to the nature of the glass fiber, which is an examination, if it is broken by an impact, it scatters and there is a risk of injury to people.
따라서, 본 발명은 강도와 탄성이 우수한 액정섬유를 사용하여 내절단성, 신축성 및 안전성이 우수한 액정섬유 복합사를 제공하는데 그 목적이 있다.Accordingly, an object of the present invention is to provide a liquid crystal fiber composite yarn having excellent cut resistance, elasticity and safety by using liquid crystal fibers having excellent strength and elasticity.
상기와 같은 기술적 과제를 해결하기 위하여, 본 발명은 액정 폴리머(LCP)를 용융 방사하여 액정섬유를 제조하는 단계, 액정섬유의 표면을 수지로 코팅하는 단계 및, 액정섬유를 심사로 배치하고 초사로 커버링하는 단계를 포함하는 심초형 복합사가 제공된다. In order to solve the above technical problems, the present invention provides a step of manufacturing a liquid crystal fiber by melt-spinning a liquid crystal polymer (LCP), coating the surface of the liquid crystal fiber with a resin, and disposing the liquid crystal fiber as a core, and There is provided a core-sheath composite yarn comprising the step of covering.
또한 본 발명에 있어서, 액정섬유의 굵기는 100~600 데니어이고, 강도는 6g/d~15g/d이다.In addition, in the present invention, the thickness of the liquid crystal fiber is 100 ~ 600 denier, the strength is 6g / d ~ 15g / d.
또한 본 발명에 있어서, 수지는 폴리우레탄 수지, 아크릴 수지 또는 레조시놀-포르말린-라텍스(RFL) 중 어느 하나이다.In addition, in the present invention, the resin is any one of a polyurethane resin, an acrylic resin, or resorcinol-formalin-latex (RFL).
또한 본 발명에 있어서, 초사는 폴리에스테르사, 나일론사, 초고분자량 폴리에틸렌사, 아라미드사 중 어느 하나이다. Further, in the present invention, the sheath yarn is any one of polyester yarn, nylon yarn, ultra-high molecular weight polyethylene yarn, and aramid yarn.
또한 본 발명에 있어서, 초사는 심사 외면을 150~500 꼬임수로 서로 다른 방향으로 감는다.In addition, in the present invention, the core yarn is wound in different directions with 150 to 500 twists on the outer surface of the core yarn.
본 발명에 따르면, 강도와 탄성이 우수한 액정섬유를 사용하여 내 절단성과 함께 외부 충격에 쉽게 깨어지지 않으며, 액정섬유 표면에 수지를 코팅한 심사 외면에 초사가 감겨짐에 따라 초사가 액정섬유 표면으로부터 슬립되지 않고 충분한 마찰력으로 정착될 수 있을 뿐만 아니라, 탄성을 가진 수지가 외부 충격으로부터 심사인 액정섬유를 보호하여 안전할 뿐만 아니라, 길이방향을 따라 신축성도 함께 제공할 수 있어, 방검복, 방검 조끼, 보호용 장갑 등과 같은 안전보호복으로 사용될 수 있다. According to the present invention, the liquid crystal fiber with excellent strength and elasticity is used so that it is not easily broken by external impact with cutting resistance. Not only does it not slip and it can be fixed with sufficient friction, but it is also safe as the elastic resin protects the liquid crystal fiber from external impacts, and it can also provide elasticity along the length direction, so it can be used as a sword protection suit or a sword vest. , can be used as safety protective clothing such as protective gloves.
도 1은 본 발명에 따른 심초형 복합사 제조방법의 순서도이다.
도 2는 표면에 마찰 탄성층이 형성된 액정섬유의 단면도이다.
도 3은 본 발명에 따라 제조된 심초형 복합사의 사시도이다. 1 is a flowchart of a method for manufacturing a core-sheath-type composite yarn according to the present invention.
2 is a cross-sectional view of a liquid crystal fiber having a friction elastic layer formed on its surface.
3 is a perspective view of a core-sheath composite yarn manufactured according to the present invention.
이하, 첨부 도면을 참조하여 본 발명의 실시예를 상세히 설명한다. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 실시예는 당업계에서 평균적인 지식을 가진 자에게 본 발명을 보다 완전하게 설명하기 위해서 제공되어지는 것으로서, 도면에서의 요소의 형상, 요소의 크기, 요소간의 간격 등은 보다 명확한 설명을 강조하기 위해서 과장되거나 축소되어 표현될 수 있다.This embodiment is provided to more completely explain the present invention to those with average knowledge in the art, and the shape of elements in the drawings, the size of elements, the spacing between elements, etc. may be exaggerated or reduced for
또한, 실시예를 설명하는데 있어서, 만일 어떤 구성요소가 다른 구성요소에 "형성되어", "포함되어", "결합되어", "고정되어" 있다고 기재된 때에는, 그 다른 구성요소에 직접적으로 형성, 포함, 결합 또는 고정되어 있을 수도 있지만, 중간에 다른 구성요소가 존재할 수도 있다고 이해되어야 할 것이다.In addition, in the description of the embodiment, if a component is described as being “formed”, “included”, “coupled”, or “fixed” to another component, it is directly formed in the other component, It may be included, coupled, or fixed, but it will be understood that other components may be present in between.
또한, 실시예를 설명하는데 있어서 원칙적으로 관련된 공지의 기능이나 공지의 구성과 같이 이미 당해 기술분야의 통상의 기술자에게 자명한 사항으로서 본 발명의 기술적 특징을 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략하기로 한다.In addition, when it is determined that the technical features of the present invention may be unnecessarily obscured as it is already obvious to a person skilled in the art, such as a known function or a known configuration related in principle in describing the embodiment, the detailed description thereof A description will be omitted.
도 1은 본 발명에 따른 심초형 복합사의 순서도이고, 도 2는 이에 따라 제조된 심초형 복합사(10)의 사시도이고, 도 3은 심초형 복합사(10)의 심사(20) 단면도이다. 1 is a flow chart of the core-sheath composite yarn according to the present invention, FIG. 2 is a perspective view of the core-
본 발명은 액정 폴리머(LCP)를 용융 방사하여 액정섬유를 제조하는 단계(S110), 액정섬유의 표면을 수지로 코팅하여 마찰 탄성층을 형성하는 단계(S120), 코팅된 액정섬유를 심사로 배치하고 초사로 커버링하는 단계(S130)를 거쳐 심초형 복합사(10)를 제조한다.The present invention provides a step (S110) of melt-spinning a liquid crystal polymer (LCP) to prepare a liquid crystal fiber, a step of coating the surface of the liquid crystal fiber with a resin to form a friction elastic layer (S120), and disposing the coated liquid crystal fiber as a core layer And through the step (S130) of covering the sheath yarn to manufacture the core sheath type composite yarn (10).
먼저, 액정 폴리머(LCP)를 용융 방사하여 액정섬유를 제조한다(S110). 여기서, 액정 폴리머(LCP)는 분자가 강직하고, 용융 상태에서도 분자 간의 얽힘 현상이 없는 액정 상태를 형성하는 폴리머로, 용액으로 생기는 리오트로픽(lyotropic) 액정과, 용융상태에서 생기는 서모트로픽(thermotropic) 액정으로 구분된다. First, a liquid crystal polymer (LCP) is melt-spun to prepare a liquid crystal fiber (S110). Here, the liquid crystal polymer (LCP) is a polymer that forms a liquid crystal state in which molecules are rigid and there is no entanglement between molecules even in a molten state. separated by a liquid crystal.
이와 같은 액정 폴리머는 열 또는 용매로 용융시킨 서포트로픽(thermotropic) 액정을 스피닝 프로세스(spinning process)로 방사되는데, 방사 시 전단력에 의해 분자쇄가 흐름방향으로 배향하는 고 강도, 고 탄성율을 가진다. 이와 같은 방사과정은 공지된 기술로 자세한 설명은 생략한다. Such a liquid crystal polymer is a support tropic (thermotropic) liquid crystal melted with heat or a solvent is spun in a spinning process (spinning process), it has a high strength and high modulus of elasticity in which molecular chains are oriented in the flow direction by shear force during spinning. Such a spinning process is a well-known technique and a detailed description thereof will be omitted.
본 발명에서 액정섬유의 굵기는 100~600 데니어일 수 있는데, 100 데니어 미만이면 충분한 강도가 발현되지 않고, 600 데니어 이상이면 제조가 어렵다. 이와 같이 제조되는 액정섬유는 강도가 6g/d~15g/d로 높아 내 절단성이 우수하며, 또한 탄성율도 높아 외부 충격에 쉽게 깨어지지 않아 안전한 장점이 있다. In the present invention, the thickness of the liquid crystal fiber may be 100 to 600 denier, if it is less than 100 denier, sufficient strength is not expressed, and if it is 600 denier or more, it is difficult to manufacture. The liquid crystal fiber manufactured in this way has a high strength of 6 g/d to 15 g/d, which is excellent in cutting resistance, and also has a high modulus of elasticity, so it is not easily broken by external shocks, so it is safe.
다음으로, 제조된 액정섬유의 표면을 수지로 코팅하여 마찰 탄성층을 형성한다(S120). 본 단계는 매끈한 액정섬유 표면이 마찰 및 보다 높은 탄성을 가지도록 마찰 탄성층을 형성하는 공정으로, 코팅되는 수지는 폴리우레탄 수지, 아크릴 수지 또는 레조시놀-포르말린-라텍스(RFL) 중 어느 하나가 사용될 수 있다. 이때, 코팅은 액정섬유를 수지액조에 침지시키거나, 압출코팅이나 스프레이 코팅법이 사용될 수 있다. Next, the surface of the prepared liquid crystal fiber is coated with a resin to form a friction elastic layer (S120). This step is a process of forming a friction elastic layer so that the smooth liquid crystal fiber surface has friction and higher elasticity. The resin to be coated is polyurethane resin, acrylic resin, or resorcinol-formalin-latex (RFL). can be used In this case, the coating may be performed by immersing the liquid crystal fiber in a resin bath, or by extrusion coating or spray coating.
이와 같이 표면에 마찰 탄성층(21)이 형성된 액정섬유의 단면이 도 2에 도시되어 있는데, 마찰 탄성층(C)은 액정섬유의 매끄러운 표면에 마찰면을 제공함으로서 후술하는 바와 같이 액정섬유 표면에 감겨지는 초사가 슬립(slip)되지 않고, 또한 보다 높은 탄성을 부여하여 외부 충격으로부터 액정섬유를 보호하여 안전할 뿐만 아니라, 길이방향을 따라 신축성도 함께 제공한다.As described above, the cross-section of the liquid crystal fiber having the friction elastic layer 21 formed on the surface is shown in FIG. 2 . The friction elastic layer (C) provides a friction surface to the smooth surface of the liquid crystal fiber, and as will be described later, it is applied to the liquid crystal fiber surface. The wound yarn does not slip, and it provides higher elasticity to protect the liquid crystal fiber from external impact, thereby providing safety and elasticity along the lengthwise direction.
그 다음으로, 표면에 마찰 탄성층(21)이 형성된 액정섬유를 심사로 배치한 후, 초사로 커버링한다(S130). 초사는 마찰 탄성층(C)을 개재하여 액정섬유에 커버링됨에 따라 슬립되지 않고 나선으로 감겨진 위치에 정착될 수 있다. 이때, 초사로는 폴리에스테르사 또는 나일론사와 같은 일반 합성섬유, 또는 초고분자량 폴리에틸렌사, 아라미드사와 같은 기능성 섬유가 사용될 수 있는데, 이들 중 어느 하나가 제1 초사로 다른 섬유가 제1 초사에 감겨지는 제2 초사로 사용될 수도 있다. Next, after arranging the liquid crystal fiber having the friction elastic layer 21 formed on the surface as a core, it is covered with a sheath yarn (S130). The sheath yarn may be fixed in a spirally wound position without slipping as it is covered by the liquid crystal fiber through the friction elastic layer (C). At this time, as the primary yarn, general synthetic fibers such as polyester yarn or nylon yarn, or functional fibers such as ultra-high molecular weight polyethylene yarn and aramid yarn may be used. It can also be used as a second shroud.
즉, S130 단계로 제조되는 심초형 복합사(10)가 도시된 도 3을 참조하면, 액정섬유인 심사(20)의 외면에 제1 초사(30), 제2초사(40)가 서로 다른 방향으로 감겨져있다. 여기서, 심사(20)를 좌연(z연) 방향으로 커버링한 제1 초사(30) 외면을 우연(s연) 방향으로 제2 초사(40)가 커버링을 함으로써, 심사(20)를 보다 효과적으로 커버링할 수 있다. 이때, 초사(30,40)는 심사(20) 외면을 150~500 꼬임수(T/M)로 감겨지는데, 전술한 바와 같이 액정섬유 표면에 마찰 탄성층(C)이 형성됨에 따라, 이와 같이 500TM 이하의 다소 낮은 꼬임수로 감더라도 슬립되지 않고 심사(20) 표면에 안전하게 정착될 수 있다. That is, referring to FIG. 3 in which the core-
이와 같이 제조된 심초형 복합사(10)는 제,편직되어 방검복, 방검 조끼, 보호용 장갑 등과 같은 안전보호복으로 사용되어 날카롭고 뾰족한 물체로부터 신체를 보호할 수 있다.The core-
이상 설명한 본 발명은 기재된 실시예에 한정되는 것은 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형할 수 있음은 이 기술의 분야에서 통상의 지식을 가진 자에게 자명하다. 따라서 그러한 변형예 또는 수정예들은 본 발명의 특허청구범위에 속한다 해야 할 것이다.The present invention described above is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such variations or modifications fall within the scope of the claims of the present invention.
10 : 심초형 복합사
20 : 심사
21 : 마찰 탄성층
30 : 제1 초사
40 : 제2 초사10: core-sheath composite yarn 20: examination
21: friction elastic layer 30: first yarn
40: second sergeant
Claims (5)
액정 폴리머(LCP)를 용융 방사하여 액정섬유를 제조하는 단계;
상기 액정섬유의 표면을 수지로 코팅하여 마찰 탄성층을 형성하는 단계; 및,
상기 액정섬유를 심사로 배치하고 초사로 커버링하는 단계;를 포함하는 것을 특징으로 하는 심초형 액정섬유 복합사 제조방법. In the method for manufacturing a core-sheath composite yarn,
manufacturing a liquid crystal fiber by melt spinning a liquid crystal polymer (LCP);
forming a friction elastic layer by coating the surface of the liquid crystal fiber with a resin; and,
A method of manufacturing a core-sheath-type liquid crystal fiber composite yarn comprising a; disposing the liquid crystal fiber as a core and covering it with a sheath yarn.
상기 액정섬유의 굵기는 100~600 데니어이고, 강도는 6g/d~15g/d인 것을 특징으로 하는 심초형 액정섬유 복합사 제조방법. The method of claim 1,
The liquid crystal fiber has a thickness of 100 to 600 denier, and a strength of 6 g/d to 15 g/d.
상기 수지는 폴리우레탄 수지, 아크릴 수지 또는 레조시놀-포르말린-라텍스(RFL) 중 어느 하나인 것을 특징으로 하는 심초형 액정섬유 복합사 제조방법. 3. The method of claim 2,
The resin is a polyurethane resin, an acrylic resin, or resorcinol-formalin-latex (RFL) core sheath type liquid crystal fiber composite yarn manufacturing method, characterized in that any one.
상기 초사는 폴리에스테르사, 나일론사, 초고분자량 폴리에틸렌사, 아라미드사 중 어느 하나인 것을 특징으로 하는 심초형 액정섬유 복합사 제조방법. 4. The method of claim 3,
The core-sheath type liquid crystal fiber composite yarn manufacturing method, characterized in that the sheath yarn is any one of polyester yarn, nylon yarn, ultra-high molecular weight polyethylene yarn, and aramid yarn.
상기 초사는 상기 심사 외면을 150~500 꼬임수로 서로 다른 방향으로 감는 것을 특징으로 하는 심초형 액정섬유 복합사 제조방법. . 5. The method of claim 4,
The core sheath type liquid crystal fiber composite yarn manufacturing method, characterized in that the sheath yarn is wound in different directions with the number of twists of 150 to 500 on the outer surface of the core yarn. .
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