KR102144201B1 - Polypropylene filament elastic yarns, fabric thereof and manufacture method - Google Patents

Polypropylene filament elastic yarns, fabric thereof and manufacture method Download PDF

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KR102144201B1
KR102144201B1 KR1020180170476A KR20180170476A KR102144201B1 KR 102144201 B1 KR102144201 B1 KR 102144201B1 KR 1020180170476 A KR1020180170476 A KR 1020180170476A KR 20180170476 A KR20180170476 A KR 20180170476A KR 102144201 B1 KR102144201 B1 KR 102144201B1
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polypropylene
elastic yarn
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propylene
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이동환
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이동환
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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
    • D01F6/02—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
    • 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
    • D01D5/08—Melt spinning methods
    • D01D5/096—Humidity control, or oiling, of 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
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • 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
    • D01F1/04—Pigments
    • 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
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
    • D03D15/08—
    • 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
    • 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
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Manufacturing & Machinery (AREA)
  • Artificial Filaments (AREA)

Abstract

본 발명은 폴리프로필렌 필라멘트 탄성사에 있어서, 프로필렌 성분 92~82중량%와 에틸렌 성분 8~18중량%를 갖는 프로필렌-에틸렌 코폴리머 50~90중량%와 폴리프로필렌 50~10중량%을 용융압출후 노즐방사하여서 다수 가닥의 필라멘트를 갖는 폴리프로필렌 필라멘트 탄성사를 구비하되, 폴리프로필렌 필라멘트 탄성사는 100~1500데니어 굵기를 가지며 5% 내지 60% 신장시 신장탄성률이 99~70%로 구성하여서, 기존 폴리우레탄 탄성사의 절반 가격으로 훨씬 가격경쟁력이 좋음은 물론이고, 모노사 형태가 아니라 터치감, 유연성, 제직성이 좋은 필라멘트사 형태로 구현하되 다른 섬유에 비해서 소재특성이 우수한 폴리프로필렌사 소재를 이용하여 기존 폴리프로필렌 필라멘트사에 비해 신장탄성율이 훨씬 양호한 폴리프로필렌 필라멘트 탄성사를 구현한 장점이 있다. In the present invention, in the polypropylene filament elastic yarn, 50 to 90% by weight of a propylene-ethylene copolymer having 92 to 82% by weight of a propylene component and 8 to 18% by weight of an ethylene component and 50 to 10% by weight of polypropylene are melt-extruded and then nozzle A polypropylene filament elastic yarn having a plurality of filaments by spinning is provided, but the polypropylene filament elastic yarn has a thickness of 100 to 1500 denier and has an elongation modulus of 99 to 70% when elongated from 5% to 60%. It is not only in the form of mono yarn but also in the form of filament yarn with good touch, flexibility, and weavability, but it is made of polypropylene yarn with superior material properties compared to other fibers. There is an advantage of implementing a polypropylene filament elastic yarn that has a much better elongation modulus than a propylene filament yarn.

Figure 112018130954713-pat00001
Figure 112018130954713-pat00001

Description

폴리프로필렌 필라멘트 탄성사와 그를 이용한 섬유원단 및 그의 제조방법{POLYPROPYLENE FILAMENT ELASTIC YARNS, FABRIC THEREOF AND MANUFACTURE METHOD}Polypropylene filament elastic yarn and fiber fabric using the same, and a method for manufacturing the same TECHNICAL FIELD {POLYPROPYLENE FILAMENT ELASTIC YARNS, FABRIC THEREOF AND MANUFACTURE METHOD}

본 발명은 탄성사에 관한 것으로, 특히 폴리프로필렌 필라멘트사가 신축성이 좋고 그 신장에 대한 탄성회복이 우수하도록 개량된 폴리프로필렌 필라멘트 탄성사와 그를 이용한 섬유원단 및 제조방법에 관한 것이다. The present invention relates to an elastic yarn, and in particular, to a polypropylene filament elastic yarn improved so as to have good elasticity and excellent elastic recovery against elongation, and a fiber fabric and a manufacturing method using the same.

요즈음 탄성 섬유는 그의 우수한 신축 특성 때문에 레그웨어, 이너웨어, 스포츠웨어 등의 신축성 직물 재료 용도나 산업자재 용도로 폭넓게 사용되고 있다.These days, because of its excellent elasticity, elastic fibers are widely used for stretch fabric materials such as legwear, innerwear, and sportswear, or for industrial materials.

이러한 탄성 섬유의 일예로서 폴리우레탄 탄성사가 있다. 폴리우레탄 탄성사에는 고강신도, 고회복성, 고내약품성, 고내열성, 염색 견뢰도를 갖는 것이 요구된다. 특히 내약품성은 최근 폴리에스테르사와 조합하여 혼합 포백으로 사용하는 경우에 있어서는 강하게 요망되고 있고, 폴리에스테르의 감량 가공이나 발식 가공에 견딜 수 있는 내약품성이 요구되고 있다.As an example of such an elastic fiber, there is a polyurethane elastic yarn. Polyurethane elastic yarns are required to have high elongation, high recovery, high chemical resistance, high heat resistance, and color fastness. In particular, chemical resistance is strongly desired in the case of using as a mixed fabric in combination with a polyester yarn in recent years, and chemical resistance capable of withstanding polyester weight loss processing and erosion processing is demanded.

이와 같은 내약품성의 부여를 위해 일 예의 기술로서는 폴리우레탄 방사 용액 내에 폴리불화비닐리덴을 함유시켜 방사하는 기술이 있지만, 폴리불화비닐리덴을 함유시킨 폴리우레탄 탄성사의 경우 회복성이나 내열성이 충분하지 않고 특히 감량 가공이나 발식 가공을 필요로 하는 폴리에스테르사와의 혼합 포백의 용도로는 내약품성도 여전히 불만족스러운 수준이어서 그 사용이 제한되는 여전히 만족스럽지 않다. In order to impart such chemical resistance, an example technique is a technique of spinning by containing polyvinylidene fluoride in a polyurethane spinning solution. However, in the case of polyurethane elastic yarn containing polyvinylidene fluoride, recovery and heat resistance are not sufficient. In particular, for the use of mixed fabrics with polyester yarns that require weight loss processing or erosion processing, the chemical resistance is still unsatisfactory, and its use is still not satisfactory.

더욱이 이러한 탄성사로서 그 일예를 든 폴리우레탄 탄성사의 경우에는 다른 섬유사에 비해서 고가인 관계로 가격 경쟁력이 좋지 못한 단점이 있다. Moreover, the polyurethane elastic yarn, which is an example of such an elastic yarn, has a disadvantage of poor price competitiveness because it is expensive compared to other fiber yarns.

그리고 폴리우레탄 탄성사를 비롯한 다양한 종류의 탄성사는 제조상의 어려움으로 인해서 거의 대부분이 모노사 형태로 제조된다. 그런데 모노사 형태의 탄성사가 단독 내지 혼용 이용하여서 원단으로 직조되면 그 원단의 터치감이나 제직성이 좋지 못하다는 단점이 있다. And, due to the difficulty in manufacturing various types of elastic yarns including polyurethane elastic yarns, almost all of them are manufactured in the form of mono yarns. However, there is a disadvantage in that the touch feeling or weavability of the fabric is not good if the mono yarn type elastic yarn is woven into a fabric by using alone or in combination.

그러므로 만일 폴리우레탄 탄성사보다 훨씬 가격경쟁력이 좋고 또 모노사형태가 아니라 필라멘트사로 구현하되 다른 섬유에 비해서 소재특성이 우수한 폴리프로필렌사 소재를 이용하여 기존 폴리프로필렌 필라멘트사에 비해서 신장탄성율이 훨씬 우수한 폴리프로필렌 필라멘트 탄성사를 구현할 수 있다면, 당해 업계나 관련 종사자로부터 큰 호응을 얻을 수 있을 것이다. Therefore, if price competitiveness is much better than polyurethane elastic yarns, and it is implemented as filament yarns rather than mono yarns, but by using polypropylene yarns that have superior material properties compared to other fibers, polypropylene has a much better elongation modulus compared to existing polypropylene filament yarns. If the filament elastic yarn can be implemented, it will be able to get a great response from the industry or related workers.

등록특허 제10-1440650호 "폴리우레탄 탄성사 및 그의 제조 방법"Registered Patent No. 10-1440650 "Polyurethane elastic yarn and its manufacturing method"

따라서 본 발명의 목적은 소재특성이 좋은 폴리프로필렌 필라멘트사가 신축성이 좋고 그 신장에 대한 탄성회복이 우수하도록 개량되어진 폴리프로필렌 필라멘트 탄성사와 그를 이용한 섬유원단 및 그의 제조방법을 제공함에 있다. Accordingly, an object of the present invention is to provide a polypropylene filament yarn having good material properties and an improved polypropylene filament elastic yarn that has good elasticity and excellent elastic recovery against elongation, and a fiber fabric using the same, and a method of manufacturing the same.

상기한 목적에 따른 본 발명은, 폴리프로필렌 필라멘트 탄성사에 있어서, 프로필렌 성분 92~82중량%와 에틸렌 성분 8~18중량%를 갖는 프로필렌-에틸렌 코폴리머 50~90중량%와 폴리프로필렌 50~10중량%을 용융압출후 노즐방사하여서 다수 가닥의 필라멘트를 갖는 폴리프로필렌 필라멘트 탄성사를 구비하되, 상기 폴리프로필렌 필라멘트 탄성사는 100~1500데니어 굵기를 가지며 5% 내지 60% 신장시 신장탄성률이 99~70%로 구성함을 특징으로 하는 폴리프로필렌 필라멘트 탄성사이다. The present invention according to the above object is, in the polypropylene filament elastic yarn, a propylene component having 92 to 82% by weight and 8 to 18% by weight of an ethylene component-50 to 90% by weight of a propylene-ethylene copolymer and 50 to 10% by weight of polypropylene % Is melt-extruded and nozzle-spun to provide a polypropylene filament elastic yarn having a plurality of filaments, but the polypropylene filament elastic yarn has a thickness of 100-1500 denier and the elongation elastic modulus is 99-70% when elongated from 5% to 60%. It is a polypropylene filament elastic yarn characterized in that it comprises.

상기의 프로필렌-에틸렌 코폴리머는 프로필렌 성분 85중량%와 에틸렌 성분 15중량%로 구성함을 특징으로 하며, The propylene-ethylene copolymer is characterized by consisting of 85% by weight of a propylene component and 15% by weight of an ethylene component,

또 본 발명의 폴리프로필렌 필라멘트 탄성사는 필라멘트 30~100가닥으로 구성함을 특징으로 하며, In addition, the polypropylene filament elastic yarn of the present invention is characterized by consisting of 30 to 100 filament strands,

또 본 발명의 폴리프로필렌 필라멘트 탄성사는 2~3(gf/denier) 비강도를 가짐을 특징으로 한다. In addition, the polypropylene filament elastic yarn of the present invention is characterized by having a specific strength of 2 to 3 (gf/denier).

더욱이 본 발명에서 상기 폴리프로필렌 필라멘트 탄성사는 프로필렌-에틸렌 코폴리머와 폴리프로필렌의 총합 100중량% 대비 안료 3~8중량%을 더 구비하여서 폴리프로필렌 필라멘트 탄성사가 색상을 갖도록 함을 특징으로 한다. Further, in the present invention, the polypropylene filament elastic yarn is characterized in that the polypropylene filament elastic yarn has a color by further comprising 3 to 8% by weight of a pigment relative to 100% by weight of a total of propylene-ethylene copolymer and polypropylene.

또한 본 발명의 다른 견지로서, 상기와 같은 폴리프로필렌 필라멘트 탄성사를 이용하여 단독 내지 혼용으로 직조하여서 직물 즉 제직물, 편직물, 부직물 등을 제조함을 특징으로 하는 폴리프로필렌 탄성사를 이용한 섬유원단을 구성한다. In addition, as another aspect of the present invention, a fiber fabric using polypropylene elastic yarn, characterized in that the fabric, that is, a woven fabric, a knitted fabric, a non-woven fabric, etc., is manufactured by woven alone or mixed using the polypropylene filament elastic yarn as described above. do.

또 본 발명의 또 다른 견지로서, 폴리프로필렌 필라멘트 탄성사의 제조방법에 있어서, 프로필렌 성분 92~82중량%와 에틸렌 성분 8~18중량%를 갖는 프로필렌-에틸렌 코폴리머 50~90중량%을 폴리프로필렌 50~10중량%와 함께 용융압출기에 투입하여서 230~260℃온도로 용융압출하되 용융압출기의 후방 다이스부에서는 190~210℃온도로 낮춘후 방사노즐들을 통해 다수 필라멘트들로 방사하고, 방사노즐들을 통해 방사되는 다수 필라멘트들을 10~20℃ 냉각온도로 송풍 냉각시킨 후 오일링 한 다음, 다수차에 걸쳐 연신하되 50~60℃의 연신온도로 1.5 ~ 3 : 1의 비율로 연신하고 인터레이싱하여서 100~1500데니어 굵기를 가지며 5% 내지 60% 신장시 신장탄성률이 99~70%를 갖는 폴리프로필렌 필라멘트 탄성사를 얻음을 특징으로 한다. In another aspect of the present invention, in the method for producing polypropylene filament elastic yarn, 50 to 90% by weight of a propylene-ethylene copolymer having 92 to 82% by weight of a propylene component and 8 to 18% by weight of an ethylene component is used as polypropylene 50 Put it into the melt extruder with ~10% by weight and melt extruded at a temperature of 230 to 260°C, but after lowering the temperature to 190 to 210°C at the rear die of the melt extruder, it is spun into a number of filaments through the spinning nozzles, After blowing and cooling the spun filaments at a cooling temperature of 10 to 20°C, oiling is performed, and then stretching multiple times, but stretching at a drawing temperature of 50 to 60°C in a ratio of 1.5 to 3 :1 and interlacing to 100 to It is characterized by obtaining a polypropylene filament elastic yarn having a thickness of 1500 denier and having an elongation modulus of 99 to 70% upon elongation of 5% to 60%.

이때 상기 용융압출기에는 프로필렌-에틸렌 코폴리머와 폴리프로필렌의 총합 100중량% 대비 안료 3~8중량%를 마스터배치형태로 더 투입함을 특징으로 한다. At this time, the melt extruder is characterized in that 3 to 8% by weight of pigment is further added in the form of a master batch relative to 100% by weight of a total of propylene-ethylene copolymer and polypropylene.

본 발명은 기존 폴리우레탄 탄성사의 절반 가격이므로 훨씬 가격경쟁력이 좋음은 물론이고, 모노사 형태가 아니라 터치감, 유연성, 제직성이 좋은 필라멘트사 형태로 구현하되 다른 섬유에 비해서 소재특성이 우수한 폴리프로필렌사 소재를 이용하여 기존 폴리프로필렌 필라멘트사에 비해 신장탄성율이 훨씬 양호한 폴리프로필렌 필라멘트 탄성사를 구현한 장점이 있다. Since the present invention is half the price of the existing polyurethane elastic yarn, it is of course much more competitive in price, and is implemented in the form of filament yarn with good touch, flexibility, and weavability, not mono yarn, but with superior material properties compared to other fibers. There is an advantage of implementing a polypropylene filament elastic yarn that has a much better elongation modulus than the existing polypropylene filament yarn by using a yarn material.

도 1은 본 발명의 실시예에 따른 폴리프로필렌 필라멘트 탄성사의 사진 예시도,
도 2a는 본 발명의 폴리프로필렌 필라멘트 탄성사를 늘이기 전 상태의 사진 예시도,
도 2b는 본 발명의 폴리프로필렌 필라멘트 탄성사를 늘려 놓은 상태의 사진 예시도,
도 3은 본 발명의 실시 예에 따른 폴리프로필렌 필라멘트 탄성사의 개략 제조 공정 구성도. 1 is an exemplary photograph of a polypropylene filament elastic yarn according to an embodiment of the present invention,
Figure 2a is an exemplary photograph of the state before stretching the polypropylene filament elastic yarn of the present invention,
Figure 2b is an exemplary photograph of a state in which the elastic polypropylene filament yarn of the present invention is stretched,
Figure 3 is a schematic configuration diagram of the manufacturing process of the polypropylene filament elastic yarn according to an embodiment of the present invention.

이하 본 발명의 바람직한 실시 예들을 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

폴리프로필렌(PP)사는 섬유에 적용시 모든 합성섬유 중 가장 가볍고, 정전기 발생이 없어 착용감 편안하며, 열전도도가 낮아 보온성이 탁월하고 최적의 흡한·속건 기능을 가지므로 꿈의 소재라고 불리운다.Polypropylene (PP) yarn is the lightest of all synthetic fibers when applied to fibers, is comfortable to wear because it does not generate static electricity, has excellent heat retention due to low thermal conductivity, and is called the material of a dream because it has optimal sweat absorption and quick drying functions.

본 발명에서는 이러한 폴리프로필렌 필라멘트사를 탄성사로 구현하여서 폴리프로필렌사에서 얻을 수 있는 장점을 최대한 살리면서도 탄성사의 우수한 신축 특성을 부여함에 의해 레그웨어, 이너웨어, 스포츠웨어 등의 신축성 직물재료 용도나 산업자재 용도로 폭넓게 사용될 수 있도록 한다In the present invention, the polypropylene filament yarns are implemented as elastic yarns to maximize the advantages that can be obtained from polypropylene yarns, while providing excellent stretch characteristics of the elastic yarns, so that the use of stretchable fabric materials such as legwear, innerwear, sportswear, etc. or industrial materials To be widely used

지금까지 탄성을 갖는 폴리프로필렌 필라멘트사의 제조는 상당히 어려웠다. 그 이유는 필라멘트사가 그 특성상 필라멘트 1가닥이 매우 가늘다는 것이고 각 필라멘트가 탄성을 갖도록 하기 위해 연질성분이 포함되면 제조중 필라멘트사 용융 방사시 잘 끊어지기 때문이다. Until now, the production of elastic polypropylene filament yarns has been quite difficult. The reason is that one filament strand is very thin due to its characteristics, and if a soft component is included to make each filament have elasticity, it breaks easily during melt spinning of the filament yarn during manufacture.

그런데 본 발명에서는 이러한 어려움을 극복하고 탄성을 갖는 폴리프로필렌 필라멘트사 즉 폴리프로필렌 필라멘트 탄성사로 구현하였다. However, in the present invention, this difficulty was overcome and implemented as a polypropylene filament yarn having elasticity, that is, a polypropylene filament elastic yarn.

또 기존 탄성사가 대부분 모노사형태인데 반해, 본 발명에서는 연속적인 길이의 장섬유(filament)형태로 이루어져 매끄럽고 평활한 특성이 있는 필라멘트사로 구현하며, 또한 폴리프로필렌 필라멘트 탄성사의 제조단가를 기존의 폴리우레탄 탄성사에 비해 거의 절반 가격 밖에 되지 않도록 제조하여서 탄성사의 보급에 있어 유리한 특징도 겸한다. In addition, while the existing elastic yarn is mostly in the form of mono yarn, in the present invention, it is implemented as a filament yarn having a smooth and smooth property consisting of a continuous length of filament, and the manufacturing cost of the polypropylene filament elastic yarn is It is manufactured so as to be almost half the price compared to the elastic yarn, so it is also advantageous in the spread of elastic yarn.

도 1은 본 발명의 실시예에 따른 폴리프로필렌 필라멘트 탄성사의 사진 예시도이다.1 is an exemplary photographic view of a polypropylene filament elastic yarn according to an embodiment of the present invention.

본 발명의 폴리프로필렌 필라멘트 탄성사는 프로필렌 성분 92~82중량%와 에틸렌 성분 8~18중량%를 갖는 프로필렌-에틸렌 코폴리머(copolymer)와 폴리프로필렌로 성분 구성되며, 이중 프로필렌-에틸렌 코폴리머는 높은 비결정성 영역(high amorphous region)을 가진 반결정성(semi-crystaline) 폴리머이다. The polypropylene filament elastic yarn of the present invention is composed of a propylene-ethylene copolymer and polypropylene having 92 to 82% by weight of a propylene component and 8 to 18% by weight of an ethylene component, of which propylene-ethylene copolymer is a high secret. It is a semi-crystaline polymer with a high amorphous region.

코폴리머(copolymer)는 단독중합체(1종류의 단량체를 가지고 만든 고분자) 보다 더 개선된 물성 또는 더 나은 조합된 물성을 가지고 있는 2종류 이상의 단량체를 연결시켜 만들어진 고분자이다. A copolymer is a polymer made by linking two or more types of monomers with improved physical properties or better combined physical properties than a homopolymer (a polymer made with one type of monomer).

본 발명의 폴리프로필렌 필라멘트 탄성사의 하나의 구성성분이 되는 프로필렌-에틸렌 코폴리머(copolymer)는 비결정성 에틸렌-프로필렌 공중합체의 에틸렌-프로필렌 영역에 미세하게 분산된 아이소탁틱 결정(isotactic crystallite)이 연결되어 있는 구조를 가지며, 이러한 구조로 인해서 열가소성 엘라스토머(thermorplastic elastomer)의 특성을 가진다. The propylene-ethylene copolymer, which is a constituent of the polypropylene filament elastic yarn of the present invention, is an isotactic crystallite finely dispersed in the ethylene-propylene region of the amorphous ethylene-propylene copolymer. It has a structure that has a structure, and because of this structure, it has the properties of a thermoplastic elastomer.

이제 본 발명의 폴리프로필렌 필라멘트 탄성사에 대해서 보다 구체적으로 설명한다. Now, the polypropylene filament elastic yarn of the present invention will be described in more detail.

본 발명의 폴리프로필렌 필라멘트 탄성사는 프로필렌 성분 92~82중량%와 에틸렌 성분 8~18중량%를 갖는 프로필렌-에틸렌 코폴리머 50~90중량%와 폴리프로필렌 50~10중량%로 구성되며, 30~100가닥의 필라멘트들로 형성되고 100~1500데니어 굵기 바람직하게는 200~600데니어 굵기를 가진다. The polypropylene filament elastic yarn of the present invention is composed of 50 to 90% by weight of a propylene-ethylene copolymer having 92 to 82% by weight of a propylene component and 8 to 18% by weight of an ethylene component and 50 to 10% by weight of polypropylene, and 30 to 100 It is formed of strands of filaments and has a thickness of 100 to 1500 denier and preferably 200 to 600 denier.

상기 프로필렌-에틸렌 코폴리머는 바람직한 일예로서는, 프로필렌 성분 85중량%와 에틸렌 성분 15중량%로 구성하는 것이다. As a preferred example, the propylene-ethylene copolymer is composed of 85% by weight of a propylene component and 15% by weight of an ethylene component.

폴리프로필렌 필라멘트 탄성사의 프로필렌-에틸렌 코폴리머 성분에서 에틸렌이 8%중량 미만이면 신축성이 별로 없으며, 18중량%를 초과하게 되면 탄성사로서 의미 있는 신장상태가 될 때 절사가 되는 등과 같이 필라멘트 탄성사로서 요구되는 유의미한 신장탄성률을 가지지 못한다. 8~18중량%의 에틸렌성분은 그 범위내에서 에틸렌성분이 클수록 밀도나 강도가 떨어지고 유연성을 좋아진다. In the propylene-ethylene copolymer component of polypropylene filament elastic yarn, if ethylene is less than 8% by weight, there is not much elasticity, and when it exceeds 18% by weight, it is required as filament elastic yarn, such as cutting when it becomes a meaningful elongation state as elastic yarn. It does not have a significant elastic modulus. The ethylene component of 8 to 18% by weight decreases in density or strength and improves flexibility as the ethylene component increases within the range.

본 발명의 폴리프로필렌 필라멘트 탄성사는 프로필렌-에틸렌 코폴리머가 50~90중량%이고 폴리프로필렌이 50~10중량%로 구성되는데, 만일 프로필렌-에틸렌 코폴리머 성분이 50중량%미만이고 폴리프로필렌 성분이 50중량%를 초과하게 되면 탄성사로서의 신축성이 저하되고 프로필렌-에틸렌 코폴리머 성분이 90중량%를 초과하고 폴리프로필렌 성분이 10중량% 미만이면 필라멘트 제조중 방사시 절사가 다량 발생하므로 필라멘트사로서의 제조가 힘들다.The polypropylene filament elastic yarn of the present invention is composed of 50 to 90% by weight of propylene-ethylene copolymer and 50 to 10% by weight of polypropylene, if the propylene-ethylene copolymer component is less than 50% by weight and the polypropylene component is 50 If it exceeds the weight %, the elasticity as an elastic yarn decreases, and if the propylene-ethylene copolymer component exceeds 90% by weight and the polypropylene component is less than 10% by weight, a large amount of cutting occurs during spinning during filament manufacturing, making it difficult to manufacture as filament yarn. .

더욱이 본 발명의 폴리프로필렌 필라멘트 탄성사는 5%(1.5배) 내지 60%(1.6배) 신장시 신장탄성률이 100~70%을 갖는 구성이다. 상기 신장탄성률(Tensile elasticity)는 섬유사의 신장에 대한 탄성 회복의 정도를 나타내는 수치로서, 단위는 %로 표시된다. Furthermore, the polypropylene filament elastic yarn of the present invention has an elongation modulus of 100 to 70% upon elongation of 5% (1.5 times) to 60% (1.6 times). The tensile elasticity is a value representing the degree of elasticity recovery with respect to the elongation of the fiber yarn, and the unit is expressed as %.

본 발명의 폴리프로필렌 필라멘트 탄성사의 신장탄성률은 일반적인 폴리프로필렌사에 비해서 동일거리 신장시의 신장탄성률에 비해 15~30%가 우수하다. 신장탄성률이 높으면 섬유가 원상태로 다시 회복되는 능력이 우수한 것이므로 높으면 높을수록 그 회복율이 뛰어나므로 좋다. 또한 신장탄성률은 섬유사의 신장이 최대로 늘어난 상태에서도 높은 수치를 유지하는 것이 더욱 좋다. The elastic modulus of elasticity of the polypropylene filament elastic yarn of the present invention is superior to the elastic modulus of elasticity at the same distance as compared to the general polypropylene yarn by 15 to 30%. The higher the elastic modulus of elasticity, the better the ability of the fiber to recover to its original state, so the higher it is, the better the recovery rate is. In addition, it is better to maintain a high modulus of elasticity even in a state in which the elongation of the fiber yarn is maximized.

본 발명의 폴리프로필렌 필라멘트 탄성사는 실험기준이 되는 파지거리(20mm) 의 최대 70%까지 늘어날 수 있으며, 파지거리에서의 신장정도가 크면 클수록 신장탄성률의 범위가 100~70%내에서 반비례하면서 낮아진다. The elastic polypropylene filament yarn of the present invention can be increased to a maximum of 70% of the gripping distance (20mm), which is an experimental standard, and the greater the degree of elongation at the gripping distance, the lower the range of the elastic modulus is inversely within 100 to 70%.

본 발명의 폴리프로필렌 필라멘트 탄성사의 신장탄성률은 일반적인 폴리프로필렌사의 신장탄성률에 비해서 20~30% 더 높으며, 다른 비교예로서 폴리에스테르사는 파지거리의 30%이상 신장시에는 절사되어버림으로써 신장탄성률을 잴 수 없는 것과도 대비된다. The elastic modulus of elongation of the polypropylene filament elastic yarn of the present invention is 20 to 30% higher than that of a general polypropylene yarn, and as another comparative example, the polyester yarn is cut off when elongating more than 30% of the gripping distance, thereby measuring the elongation elasticity. It contrasts with what cannot be done.

또한 본 발명의 폴리프로필렌 필라멘트 탄성사는 2~3(gf/denier) 비강도를 가지며, 이에 대비되는 폴리프로필렌사의 비강도는 3.5~4.0(gf/denier)이다. 또 본 발명의 폴리프로필렌 필라멘트 탄성사는 사(絲) 인장신도가 50~60%인데, 이에 대응하는 폴리프로필렌사의 사(絲) 인장신도는 64~73%이며 또 다른 대비되는 폴리에스테르사의 사(絲) 인장신도는 25~30%이다. In addition, the polypropylene filament elastic yarn of the present invention has a specific strength of 2 to 3 (gf/denier), and the specific strength of the polypropylene yarn in contrast is 3.5 to 4.0 (gf/denier). In addition, the polypropylene filament elastic yarn of the present invention has a tensile elongation of 50 to 60%, and the corresponding polypropylene yarn has a tensile elongation of 64 to 73%, and another contrasting polyester yarn has a tensile elongation of 50 to 60%. ) Tensile elongation is 25~30%.

여기서, 비강도는 정속인장식(CRE) 시험기를 이용한 단사의 절단 강도를 측정하는 값이고 사(絲) 인장신도는 정속인장식(CRE) 시험기를 이용한 단사의 절단 신도 측정하는 값이다. Here, the specific strength is a value measuring the cutting strength of a single yarn using a constant speed tensile (CRE) tester, and the tensile elongation of the yarn is a value measuring the cutting elongation of a single yarn using a constant speed tensile (CRE) testing machine.

또한 본 발명의 상기 폴리프로필렌 필라멘트 탄성사는 프로필렌-에틸렌 코폴리머와 폴리프로필렌의 총합 100중량% 대비 안료 3~8중량%을 더 구비하여서 그 탄성사의 색상 즉 실의 염색성을 갖게 한다. In addition, the polypropylene filament elastic yarn of the present invention further comprises 3 to 8% by weight of a pigment relative to 100% by weight of the total of the propylene-ethylene copolymer and polypropylene, so that the color of the elastic yarn, that is, the dyeability of the yarn, is provided.

도 2a는 본 발명의 폴리프로필렌 필라멘트 탄성사를 늘이기 전 상태의 사진 예시도이고, 도 2b는 본 발명의 폴리프로필렌 필라멘트 탄성사를 늘려 놓은 상태의 사진 예시도이다. Figure 2a is an exemplary photograph of the state before stretching the polypropylene filament elastic yarn of the present invention, Figure 2b is an illustrative photograph of the state in which the polypropylene filament elastic yarn of the present invention is stretched.

도 2a에서와 같은 수축상태에 있던 폴리프로필렌 필라멘트 탄성사는 도 2b에서와 같이 1.5배(50%)나 더 늘어날 수 있으며 최대 1.7배(70%)까지도 더 늘어날 수 있다. The polypropylene filament elastic yarn in the contracted state as in FIG. 2A may be increased by 1.5 times (50%) as in FIG. 2B and may be increased by up to 1.7 times (70%).

도 2a 및 도 2b에 도시된 바와 같은, 본 발명의 폴리프로필렌 필라멘트 탄성사의 구체적인 일예로서, 프로필렌 성분 85중량%와 에틸렌 성분 15중량%를 갖는 프로필렌-에틸렌 코폴리머 50중량%와 폴리프로필렌 50중량%으로 구성되고 200~300데니어 굵기를 가지며, 그 신장탄성률은 각각의 기준 파지거리에서 30%신장시 80~83%, 기준 파지거리에서 40%신장시 75~78%, 기준 파지거리에서 50% 신장시 70~75%의 높은 회복율을 나타낸다. 상기 신장탄성률을 측정할 때 인장속도는 파지거리의 10%로 하였다. As a specific example of the polypropylene filament elastic yarn of the present invention, as shown in FIGS. 2A and 2B, 50% by weight of a propylene-ethylene copolymer having 85% by weight of a propylene component and 15% by weight of an ethylene component and 50% by weight of polypropylene It is composed of 200-300 denier thickness, and its elongation modulus is 80-83% at 30% elongation at each standard holding distance, 75~78% at 40% elongation at standard holding distance, and 50% elongation at standard holding distance It shows a high recovery rate of 70-75%. When measuring the elongation modulus, the tensile speed was set to 10% of the gripping distance.

도 3은 본 발명의 실시 예에 따른 폴리프로필렌 필라멘트 탄성사의 개략 제조 공정 구성도이다. 3 is a schematic configuration diagram of a manufacturing process of an elastic polypropylene filament yarn according to an embodiment of the present invention.

도 3을 참조하여서, 본 발명의 실시예에 따른 폴리프로필렌 필라멘트 탄성사의 제조방법을 설명하면 하기와 같다. Referring to FIG. 3, a method of manufacturing an elastic polypropylene filament yarn according to an embodiment of the present invention will be described below.

먼저 본 발명에서는 프로필렌 성분 92~82중량%와 에틸렌 성분 8~18중량%를 갖는 프로필렌-에틸렌 코폴리머 50~90중량%을 폴리프로필렌 50~10중량%와 함께 용융압출기(10)에 투입하여서 230~260℃온도로 용융압출하되 용융압출기(10)의 후방 다이스부(14)에서는 190~210℃온도로 낮춘후 방사노즐들을 통해 다수의 필라멘트(30)들을 방사 및 낙하시킨다. First, in the present invention, 50 to 90% by weight of a propylene-ethylene copolymer having 92 to 82% by weight of a propylene component and 8 to 18% by weight of an ethylene component is added to the melt extruder 10 together with 50 to 10% by weight of polypropylene. Although melt-extruded at a temperature of ~260°C, a plurality of filaments 30 are spun and dropped through the spinning nozzles after lowering the temperature to 190 ~ 210°C in the rear die 14 of the melt extruder 10.

도 4에서와 같이 용융압출기(10)의 1차로부, 2차로부, 3차로부의 가용온도는 230℃, 240℃, 260℃로 점차적으로 상승되게 유지하고, 기어펌프가 있는 출구부(12)에서는 250℃로 낮아지다가 방사노즐들을 갖는 다이스부(14)에서는 기존 폴리필라멘트사 제조시의 다이스부의 가온온도 220℃보다 상대적으로 낮은 190~210℃(바람직하게는 200℃)의 온도를 유지한다. As shown in Figure 4, the available temperature of the first, second, and third lanes of the melt extruder 10 is maintained to be gradually increased to 230°C, 240°C, and 260°C, and the outlet 12 with a gear pump In the die section 14 having the spinning nozzles, the temperature is lowered to 250 °C, and the temperature of the die section 14 is maintained at a temperature of 190 to 210 °C (preferably 200 °C), which is relatively lower than the heating temperature 220 °C of the die part when manufacturing the existing polyfilament company.

이는 방사되는 필라멘트가 조성 일부를 구성하는 에틸렌성분으로 인한 끈끈한 성질을 나타내기에 다이스부(14)의 가온온도를 210℃를 초과하게 되면 방사노즐로부터 방사되어지는 덜식은 끈적한 필라멘트들이 사도(guide)와 같은 방사후 회전성 또는 비회전성 마찰구간에서 마찰되면서 쉽게 끊어질 수 있기 때문이며, 본원 발명자가 수많은 실험을 통해서 다이스부(14)의 가온온도를 상대적으로 낮춰줌으로써 절사가 최소화 내지 방지됨을 확인한 것이다. This is because the spun filaments exhibit sticky properties due to the ethylene component constituting a part of the composition, so when the heating temperature of the die part 14 exceeds 210°C, the less sticky filaments spun from the spinning nozzle are This is because it can be easily broken while rubbing in a rotational or non-rotating friction section after the same spinning, and the inventor of the present invention confirmed that cutting is minimized or prevented by relatively lowering the heating temperature of the die 14 through numerous experiments.

또 상기 용융압출기(10)에는 프로필렌-에틸렌 코폴리머와 폴리프로필렌의 총합 100중량% 대비 안료 3~8중량%를 마스터배치형태로 더 투입하여서 제조완성되는 프로필렌 필라멘트 탄성사(32)가 색상을 갖도록 구현할 수도 있음을 유의해야 한다. In addition, in the melt extruder 10, 3 to 8% by weight of a pigment relative to 100% by weight of the total propylene-ethylene copolymer and polypropylene is added in the form of a master batch, so that the propylene filament elastic yarn 32 that is manufactured and completed has a color. It should be noted that it may be.

다이스부(14)의 방사노즐들을 통해 방사되는 다수 필라멘트(30)들은 낙하하면서 냉각송풍기(16)에 의해서 10~20℃ 냉각온도로 송풍 냉각된 다음, 오일링부(10)에 의해서 오일링이 이루어진다. 오일링부(10)는 미연신사의 표면에 유제를 균일하게 부여함으로써 습윤효과를 주어 알맞는 분자배향을 이루어 미연신사에 평활성, 집속성 및 대전방지성을 부여시켜 연신 작업성을 높여준다. The plurality of filaments 30 radiated through the spinning nozzles of the die part 14 are blown and cooled to a cooling temperature of 10 to 20°C by the cooling blower 16 while falling, and then oiling is performed by the oil ring part 10. . The oiling part 10 provides a moistening effect by uniformly applying an oil agent to the surface of the undrawn yarn to form a suitable molecular orientation, thereby improving the stretching workability by imparting smoothness, binding properties and antistatic properties to the undrawn yarn.

오일링을 이루어진 후 필라멘트사(30)는 연신부(20)에서 다수차에 걸친 연신이 이루어지되 하되 50~60℃의 연신온도로 1.5 ~ 3 : 1의 연신비로 연신이 이루어진다. 이는 기존 폴리프로필렌사의 연신비 3 ~ 5 : 1에 대비되는 것으로 보다 낮은 연신비를 제공함으로써 연신중의 필라멘트사가 연신롤러에 달라붙는 현상을 최소화한다. After the oil ring is made, the filament yarn 30 is stretched over a number of times in the stretching unit 20, but is stretched at a stretching temperature of 50 to 60°C at a draw ratio of 1.5 to 3: 1. This is compared to the draw ratio of the existing polypropylene yarns of 3 to 5:1, and provides a lower draw ratio, thereby minimizing the phenomenon of sticking of the filament yarns to the draw rollers during drawing.

보다 구체적으로 설명하면, 연신부(20)는 제1 내지 제3 연신롤러(20a)(20b)(20c)로 구성하여서 제1 내지 제3 연신롤러(20a)(20b)(20c)에 의한 2차례에 걸친 연신이 이루어지되, 고데트롤러(godet roller)인 제1 연신롤러(20a)와 제2 연신롤러(20b)간에 의한 1차 연신은 1.5 : 1의 연신비로 연신되게 하고, 고데트롤러(godet roller)인 제2 연신롤러(20b)와 제3 연신롤러(20c)간에 의한 2차 연신은 2 ~ 3 : 1의 연신비로 연신되게 한다. More specifically, the stretching unit 20 is composed of the first to third stretching rollers 20a, 20b, and 20c, so that the first to third stretching rollers 20a, 20b, and 20c The stretching is performed in turn, but the primary stretching between the first stretching roller 20a and the second stretching roller 20b, which is a godet roller, is stretched at a draw ratio of 1.5:1, and a godet roller The secondary stretching between the second stretching roller (20b) and the third stretching roller (20c), which is a roller), is stretched at a draw ratio of 2 to 3: 1.

이렇게 연신부(20)에 의해서 연신이 된 필라멘트(30)은 압축공기를 이용한 인터레이샤(interlacer)(21)에 의한 교락(interlacing)이 수행되어서 필라멘트들 상호간의 헛꼬임에 의한 결속(집속)이 증진된 폴리프로필렌 필라멘트 탄성사(32)가 완성이 되며, 이렇게 얻어진 폴리프로필렌 필라멘트 탄성사(32)는 와인더(22)에 감겨서 최종 원사제품이 된다. In this way, the filaments 30 stretched by the stretching unit 20 are interlaced by an interlacer 21 using compressed air, so that the filaments are bound (focused) by twisting each other. This enhanced polypropylene filament elastic yarn 32 is completed, and the polypropylene filament elastic yarn 32 thus obtained is wound around a winder 22 to become a final yarn product.

도 4에서 미설명부호 (24a)(24b)(24c)(24d)(24e)(24f)(24g)는 안내롤러이다. In Fig. 4, reference numerals 24a, 24b, 24c, 24d, 24e, 24f and 24g denote guide rollers.

상기와 같은 제조공정을 통해 얻어진 본 발명의 폴리프로필렌 필라멘트 탄성사(32)는 프로필렌 성분 92~82중량%와 에틸렌 성분 8~18중량%를 갖는 프로필렌-에틸렌 코폴리머 50~90중량%와 폴리프로필렌 50~10중량%로 구성되며, 30~100가닥의 필라멘트들로 형성되고 100~1500데니어 굵기 바람직하게는 200~600데니어 굵기를 가지며, 5% 내지 60% 신장시 신장탄성률이 99~70%이 되게 구성한다. The polypropylene filament elastic yarn 32 of the present invention obtained through the above manufacturing process is a propylene-ethylene copolymer having 92 to 82% by weight and 8 to 18% by weight of an ethylene component and 50 to 90% by weight of a polypropylene. It is composed of ~10% by weight, is formed of 30-100 strands of filaments, has a thickness of 100-1500 denier, preferably 200-600 denier, and has an elongation elastic modulus of 99-70% when elongated from 5% to 60%. Make up.

상기와 같은 본 발명의 폴리프로필렌 필라멘트 탄성사(32)는 단독으로 사용되거나 다른 섬유사와 혼용되어 직조(제편,제직, 부직 등)되어서 섬유원단이 될 수도 있음을 이해하여야 하며, 그에 따라 단의 형태는 제직물, 편직물, 부직포 등의 형태가 될 수 있다. It should be understood that the polypropylene filament elastic yarn 32 of the present invention as described above may be used alone or mixed with other fiber yarns to be woven (woven, woven, non-woven, etc.) to form a fiber fabric, and accordingly It may be in the form of a woven fabric, a knitted fabric, or a non-woven fabric.

상술한 본 발명의 설명에서는 구체적인 실시 예에 관해 설명하였으나, 여러 가지 변형이 본 발명의 범위에서 벗어나지 않고 실시할 수 있다. 따라서 본 발명의 범위는 설명된 실시 예에 의하여 정할 것이 아니고 특허청구범위 및 그 특허청구범위와 균등한 것에 의해 정해 져야 한다. In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be determined by the described embodiments, but should be determined by the claims and equivalents to the claims.

(10)-- 용융압출기 (14)-- 다이스부
(16)-- 냉각송풍기 (18)-- 오일링부
(20)-- 연신부 (22)-- 와인더
(30)-- 필라멘트 (32)-- 프로필렌 필라멘트 탄성사(10)-- Melt extruder (14)-- Dies section
(16)-- Cooling fan (18)-- Oil ring part
(20)-- Extension (22)-- Winder
(30)-- Filament (32)-- Propylene filament elastic yarn

Claims (4)

폴리프로필렌 필라멘트 탄성사에 있어서,
프로필렌 성분 92~82중량%와 에틸렌 성분 8~18중량%를 갖는 프로필렌-에틸렌 코폴리머 50~90중량%와 폴리프로필렌 50~10중량%, 프로필렌-에틸렌 코폴리머와 폴리프로필렌의 총합 100중량% 대비 안료 3~8중량%을 용융압출후 노즐방사하여서 다수 가닥의 필라멘트를 갖는 폴리프로필렌 필라멘트 탄성사를 구비하되, 상기 폴리프로필렌 필라멘트 탄성사는 100~1500데니어 굵기를 가지며 5% 내지 60% 신장시 신장탄성률이 99~70%로 구성하고 필라멘트 30~100가닥과 2~3(gf/denier) 비강도, 50~60%의 사(絲) 인장신도를 가지게 구성함을 더 구비함을 특징으로 하는 폴리프로필렌 필라멘트 탄성사.
In the polypropylene filament elastic yarn,
50 to 90% by weight of a propylene-ethylene copolymer having 92 to 82% by weight of a propylene component and 8 to 18% by weight of an ethylene component and 50 to 10% by weight of polypropylene, compared to 100% by weight of the total of propylene-ethylene copolymer and polypropylene A polypropylene filament elastic yarn having a plurality of filaments is provided by melt extrusion of 3 to 8% by weight of a pigment and then nozzle spinning, but the polypropylene filament elastic yarn has a thickness of 100-1500 denier and has an elongation elastic modulus of 5% to 60%. Polypropylene filament, characterized in that it is composed of 99 to 70% and has 30 to 100 strands of filament, 2 to 3 (gf/denier) specific strength, and a tensile elongation of 50 to 60%. Elastic yarn.
삭제delete 제1항의 폴리프로필렌 필라멘트 탄성사를 이용하여 단독 내지 혼용으로 직조하여서 제조함을 특징으로 하는 폴리프로필렌 필라멘트 탄성사를 이용한 섬유원단.
A fiber fabric using polypropylene filament elastic yarn, characterized in that it is manufactured by weaving alone or in combination using the polypropylene filament elastic yarn of claim 1.
폴리프로필렌 필라멘트 탄성사의 제조방법에 있어서,
프로필렌 성분 92~82중량%와 에틸렌 성분 8~18중량%를 갖는 프로필렌-에틸렌 코폴리머 50~90중량%을 폴리프로필렌 50~10중량%와 함께 용융압출기에 투입하되 프로필렌-에틸렌 코폴리머와 폴리프로필렌의 총합 100중량% 대비 안료 3~8중량%를 마스터배치형태로 더 투입하여서 용융압출기의 1차로부 내지 3차로부가 230~260℃ 온도내에서 가용온도를 점차 상승되게 하여 용융 압출하며 방사 필라멘트의 절사를 방지하기 위해 용융압출기의 후방 다이스부에서는 폴리필라멘트사 제조시의 다이스부의 가온온도보다 상대적으로 낮은 190~210℃의 다이스부 가온온도로 유지한 후 방사노즐들을 통해 다수 필라멘트들로 방사하고,
방사노즐들을 통해 방사되는 다수 필라멘트들을 10~20℃ 냉각온도로 송풍 냉각시킨 후 오일링 한 다음, 다수차에 걸쳐 연신하되 50~60℃의 연신온도로 1.5 ~ 3 : 1의 비율로 연신하고 인터레이싱하여서 100~1500데니어 굵기를 가지며 5% 내지 60% 신장시 신장탄성률이 99~70%, 사(絲) 인장신도 50~60%를 갖는 폴리프로필렌 필라멘트 탄성사를 얻음을 특징으로 하는 폴리프로필렌 필라멘트 탄성사의 제조방법.In the manufacturing method of polypropylene filament elastic yarn,
50 to 90% by weight of a propylene-ethylene copolymer having 92 to 82% by weight of a propylene component and 8 to 18% by weight of an ethylene component is added to the melt extruder together with 50 to 10% by weight of polypropylene, but the propylene-ethylene copolymer and polypropylene By adding 3 to 8% by weight of pigment to 100% by weight of the total in the form of a master batch, the first to third passages of the melt extruder are melt-extruded by gradually increasing the soluble temperature within a temperature of 230 to 260°C. In order to prevent cutting, the rear die of the melt extruder is kept at a heating temperature of 190 to 210°C, which is relatively lower than the heating temperature of the die part when manufacturing polyfilament, and then spun into a number of filaments through the spinning nozzles.
After blowing and cooling a number of filaments spun through the spinning nozzles at a cooling temperature of 10 to 20°C, oiling is performed, and then stretching is carried out over a number of times, but stretching at a drawing temperature of 50 to 60°C in a ratio of 1.5 to 3: 1 Polypropylene filament elastic yarn characterized by obtaining a polypropylene filament elastic yarn having a thickness of 100-1500 denier by lacing and having an elongation modulus of 99-70% and a tensile elongation of 50-60% when elongated by 5% to 60% Method of manufacturing.
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JP2007277755A (en) * 2006-04-06 2007-10-25 Chisso Corp Elastic fibers, and elastic non-woven fabric obtained from the elastic fibers and fiber product using the same

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