KR20200079746A - Process Of Producing 1.5~1.7 Denier Per Filament High Tenacity Polyester Having Triangular Cross-section For Paragliding - Google Patents

Process Of Producing 1.5~1.7 Denier Per Filament High Tenacity Polyester Having Triangular Cross-section For Paragliding Download PDF

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KR20200079746A
KR20200079746A KR1020180169229A KR20180169229A KR20200079746A KR 20200079746 A KR20200079746 A KR 20200079746A KR 1020180169229 A KR1020180169229 A KR 1020180169229A KR 20180169229 A KR20180169229 A KR 20180169229A KR 20200079746 A KR20200079746 A KR 20200079746A
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section
paragliding
triangular cross
polymer
spinneret
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KR1020180169229A
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Korean (ko)
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이우승
전초현
강윤화
조영창
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한국섬유개발연구원
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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
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; 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
    • D01D5/08—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
    • D01D5/098—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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • 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
    • D10B2401/063—Load-responsive characteristics high strength
    • 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
    • D10B2507/00—Sport; Military
    • D10B2507/06—Parachutes

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

Abstract

The present invention relates to a manufacturing method of high-strength polyester triangular filament with single yarn fineness degree of 1.5-1.7 d. The present invention exhibits properties similar to nylon 66, is easy to dye and post-process, has excellent functionality such as dimensional stability and air permeability, and has a light weight and high strength characteristics so as to be used for paragliding fabrics that can withstand wind pressure.

Description

단사섬도 1.5~1.7d급 패러글라이딩용 고강도 폴리에스테르 삼각단면필라멘트의 제조방법{Process Of Producing 1.5~1.7 Denier Per Filament High Tenacity Polyester Having Triangular Cross-section For Paragliding} Process of Producing 1.5~1.7 Denier Per Filament High Tenacity Polyester Having Triangular Cross-section For Paragliding}

본 발명은 나일론 66와 유사한 물성을 발현하고 염색성, 후가공성이 용이하며, 치수안정성, 공기투과도 등의 기능성이 우수하여 경량이면서 고강도 특성으로 풍압을 견디는 패러글라이딩용 직물에 사용할 수 있는 단사섬도 1.5~1.7d급 고강도 폴리에스테르 삼각단면필라멘트의 제조방법에 관한 것이다.The present invention expresses properties similar to nylon 66, is easy to dye and post-process, and has excellent functional properties such as dimensional stability and air permeability, and is a lightweight and high-strength property that can be used for a paragliding fabric that can withstand wind pressure with a single yarn fineness of 1.5~ 1.7d grade high strength polyester triangular cross-section of the manufacturing method.

최근 소비자들의 스포츠 활동영역이 기존 육상스포츠에서 벗어나 스릴감이 넘치는 항공 스포츠레져로 확대되는 추세인데, 이를 위한 항공 스포츠레져용 제품으로서는 패러글라이딩, 고공낙하, 패러글라이더 등이 있으며, 제품구성 중 가장 중요한 부품으로 섬유직물이 사용되고 있다.Recently, the sports activity area of consumers is expanding from the existing land sports to the thrilling aviation sports leisure. For this purpose, the products for the aviation sports leisure are paragliding, high-falling, paragliding, etc. Textile fabrics are used.

패러글라이더의 기본구조 중 비행에 가장 직접적인 영향을 미치는 날개(캐노피) 부분의 직물은 기밀(氣密)성, 경량성, 고강도, 치수안정성, 내후성 등이 필요하며, 특히 운반과 취급에 용이한 고강도(인열, 파열강도) 특성이 요구되고 있다.Among the basic structures of paragliders, the fabric of the wing (canopy) that has the most direct impact on flight needs airtightness, light weight, high strength, dimensional stability, weatherability, etc., especially high strength for easy transportation and handling. (Tear, burst strength) properties are required.

기존 제품은 Nylon66 고강력사 20de급을 사용하고 있으며, 공기투과도를 최소화 하기 위해 우레탄(PU) 수지를 박막 코팅하여 제조, 판매하고 있다. 이러한 Nylon66 고강력사의 경우, 우수한 강신도 물성과는 달리 염색견뢰도가 낮고, 내후성, 치수안정성 등의 기능성 저하가 문제가 되고 있으며, 후가공성이 폴리에스테르사보다 다소 까다로운 점 등에 의해 최근 Nylon 소재를 대체하기 위한 폴리에스테르 섬유의 활용이 주목받아 오고 있다 .Existing products use Nylon66 high-strength yarn 20de grade, and are manufactured and sold by coating a thin film of urethane (PU) resin to minimize air permeability. In the case of such nylon66 high-strength yarn, unlike excellent strength properties, it has low dyeing fastness, deterioration in functionality such as weatherability and dimensional stability, and has recently replaced nylon materials due to the fact that post-processing is somewhat more difficult than polyester yarn. The use of polyester fibers has been drawing attention.

현재 개발되어 있는 폴리에스테르 고강력사는 국내에서 태섬도를 중심으로 개발되고 있으며, 폴리에스테르 세섬사의 경우에는 다양한 기능성 소재로 소개되어 의류/생활용으로 생산되고 있으나 고강도의 특성을 발현하지 못하므로 의류 이외의 용도 접목 시 물성 문제가 발생하고 있다.The currently developed polyester high-strength yarn is being developed mainly in Taeseomdo in Korea. In the case of polyester fine-seam yarn, it is introduced as various functional materials and is produced for clothing/daily use, but since it does not express high-strength properties, Problems in physical properties occur when grafting applications.

대한민국공개공보제10-2005-0070225호(2005년07월07일 공개)Republic of Korea Publication No. 10-2005-0070225 (published on July 7, 2005) 대한민국등록특허제10-0650886호(2006년11월28일 공고)Korea Registered Patent No. 10-0650886 (announced on November 28, 2006)

그러므로 본 발명에서는 고강도 나일론 66필라멘트와 유사한 물성을 발휘하면서도 염색성, 후가공성이 용이하며, 치수안정성, 공기투과도 등의 기능성이 우수한 세섬도 삼각단면 필라멘트를 제공하는 것을 기술적과제로 한다. Therefore, in the present invention, it is a technical task to provide a fine-fine triangular cross-section filament that exhibits properties similar to high-strength nylon 66 filaments, while being easy to dye and post-process, and has excellent functional properties such as dimensional stability and air permeability.

그러므로 본 발명에 의하면, 폴리에틸렌테레프탈레이트 폴리머를 용융시킨 후, 각모서리에 돌기가 형성된 삼각모양의 방사구금을 통해 방사팩 온도 314~316℃, 방사팩압력 135~180bar로 상기 용융된 폴리머를 토출시키고, 토출된 용융상태의 폴리머를 0.43~ 0.45m/sec의 냉각풍이 형성되는 냉각부를 통과시키면서 고화한 후, 연신비 3.84~4.00배로 3단연신하고 오일링을 하고 권취하는 것을 특징으로 하는 단사섬도 1.5~1.7d급 패러글라이딩용 고강도 폴리에스테르 삼각단면필라멘트의 제조방법이 제공된다.Therefore, according to the present invention, after the polyethylene terephthalate polymer is melted, the molten polymer is discharged at a spinning pack temperature of 314 to 316°C and a spinning pack pressure of 135 to 180 bar through a triangular spinneret formed with projections on each corner. After solidifying the discharged polymer while passing through a cooling section in which a cooling wind of 0.43 to 0.45 m/sec is formed, stretch three times at a draw ratio of 3.84 to 4.00 times, oiling and winding single yarn fineness of 1.5 to 1.5 times. A method of manufacturing a high strength polyester triangular cross-section filament for 1.7d paragliding is provided.

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

본 발명은 나일론 66와 유사한 물성을 발현하고 염색성, 후가공성이 용이하며, 치수안정성, 공기투과도 등의 기능성이 우수하여 경량이면서 고강도 특성으로 풍압을 견디는 패러글라이딩용 직물에 사용할 수 있는 단사섬도 1.5~1.7d급 고강도 폴리에스테르 삼각단면필라멘트의 제조방법에 관한 것이다.The present invention expresses properties similar to nylon 66, is easy to dye and post-process, and has excellent functional properties such as dimensional stability and air permeability, and is a lightweight and high-strength property that can be used for a paragliding fabric that can withstand wind pressure with a single yarn fineness of 1.5~ 1.7d grade high strength polyester triangular cross-section of the manufacturing method.

본 발명의 세섬도 고강도 폴리에스테르 삼각단면필라멘트의 제조방법은 크게 용융, 방사, 냉각, 연신 및 권취단계로 이루어진다. The method for manufacturing fine-strength polyester triangular cross-section filaments of the present invention is largely composed of melting, spinning, cooling, stretching, and winding steps.

용융단계에서는 익스트루더에 폴리에틸렌테레프탈레이트 폴리머를 용융시켜 다음단계인 방사단계에 공급하게 된다. 상기 익스트루더는 통상의 합성섬유방사에 사용하는 익스트루더를 사용할 수 있다.In the melting step, the polyethylene terephthalate polymer is melted in the extruder and supplied to the next step, the spinning step. The extruder may be an extruder used for ordinary synthetic fiber spinning.

본 발명에서 사용되는 상기 폴리에틸렌테레프탈레이트 폴리머는 고유점도 1.3~1.4 ㎗/g인 것을 사용하는 것이 패러글라이딩용 세섬도 소재에 바람직한데, 고유점도 1.3㎗/g 미만에서는 사인장강도에 대한 물성저하 문제가 발생하며, 1.4 ㎗/g을 초과하는 경우에는 점도가 너무 높아 세섬도 멀티필라멘트 방사에 적합하지 않은 문제점이 발생한다.The polyethylene terephthalate polymer used in the present invention is preferably used for the fineness material for paragliding using an intrinsic viscosity of 1.3 to 1.4 ㎗/g, and a problem of deterioration in physical properties for sine strength at an intrinsic viscosity of less than 1.3 ㎗/g. Occurs, and when it exceeds 1.4 ㎗/g, the viscosity is too high, and fineness also causes a problem that is not suitable for multifilament spinning.

용융온도 270~275℃ 및 유리전이온도 90℃인 폴리머를 사용하는 것이 방사를 안정적으로 할 수 있고, 섬유 형성능, 섬유 발열성 및 고강도부여에 바람직하다.The use of a polymer having a melting temperature of 270 to 275°C and a glass transition temperature of 90°C is capable of stably spinning, and is preferable for fiber formation ability, fiber exothermicity and high strength.

상기 용융된 폴리머는 방사구금에 공급되어 방사되는데, 상기 방사구금은 도 2에 도시된 것과 같이 설계된 각모서리에 돌기가 형성된 삼각모양의 방사구금을 사용하는데, 돌기폭(W) 0.045~0.07 mm, 돌기길이(L) 0.25~0.30 mm인 돌기가 형성되고, 삼각모양의 일변의 길이(A)는 0.230~0.450㎜인 삼각모양의 방사구금이 바람직하다.The molten polymer is supplied to the spinneret and is spun, and the spinneret uses a triangular spinneret with protrusions formed on each corner designed as shown in FIG. 2, the protrusion width (W) 0.045 to 0.07 mm, The projection length (L) of 0.25 to 0.30 mm projections are formed, the length (A) of one side of the triangular shape is preferably a spinneret of a triangular shape of 0.230 to 0.450 mm.

방사구가 길이가 짧거나 지름이 크면 방사압력이 낮아져 폴리머가 흘려내려 방사시 왜곡을 일으킬 수 있으며, 길거나 너무 좁으면 폴리머의 체류 시간이 길어져 열화가 일어나거나 방사압력이 높아서 작업성에 문제를 일으킬 수 있다.If the spinneret has a short length or a large diameter, the spinning pressure may be lowered, causing the polymer to flow, which may cause distortion during spinning. If it is too long or too narrow, the residence time of the polymer may increase, causing deterioration or high spinning pressure, which may cause workability problems. have.

본 발명의 폴리에스테르의 고분자 유동은 일반적인 I.V 0.65와 달리 고점도 I.V 1.3~1.4로서 점도가 높기 때문에 종래의 "Y"형 방사구금의 경우 방사pack에 완전히 폴리머가 빠져나가질 못해 구금이 막히거나, 구금 조립부분에 폴리머가 새어나오는 등의 문제가 발생하지만, 도 2에 도시된 바와 같은 각모서리에 돌기가 형성된 삼각모양의 방사구금을 사용하게 되면 방사시 pack의 압력을 낮출 수 있고, 방사 구금에서 토출후 필라멘트의 삼각형의 형태가 유지되고, 방사성이 좋아진다.Since the polymer flow of the polyester of the present invention is high viscosity IV 1.3~1.4, unlike general IV 0.65, the viscosity is high, so in the case of the conventional "Y" type spinneret, the polymer cannot escape completely to the spinneret, or the detention is blocked or the detention assembly Although problems such as leaking of polymer on the part occur, when using a triangular spinneret with projections formed on each corner as shown in FIG. 2, the pressure of the pack can be lowered during spinning, and after discharge from the spinneret The triangular shape of the filament is maintained, and the radioactivity is improved.

이러한 방사구금에 의해 제조된 필라멘트의 단면은 도 1에 도시된 바와 같은 삼각단면으로서 고강도이면서도 원형단면 필라멘트와 대비해 필라멘트 간 공극이 적어 공기투과도가 낮고, 특유의 촉감을 가지며 광택이 뛰어난 특징이 있는 세섬도 필라멘트를 제공할 수 있다.The cross-section of the filament produced by the spinneret is a triangular cross-section as shown in FIG. 1, and has high strength and low air permeability due to less air gap between the filaments compared to the circular cross-section filaments. Fineness can also provide filaments.

상기 방사구금에서의 방사팩 온도는 318~320℃로 방사팩압력 130~200bar로 하는 것이 패러글라이딩용 고강도소재 제조에 적합하다. 방사팩압력 130bar미만에서는 정량토출이 불가능하여 약사 및 물성저하가 발생하며, 방사팩압력 200bar를 초과하는 경우에는 구금pack에서 폴리머가 새어나오는 문제점이 발생한다. 상기 방사구금을 통해 동시에 용융방사된 사조는 통상적인 방법과 같이 구금 직하의 사조냉각구간을 통과시키면서 냉각시켜 고화하게 되는데, 토출된 용융상태의 폴리머를 0.43~ 0.45 m/sec의 냉각풍이 형성되는 냉각부를 통과시키면서 고화한다. The spinning pack temperature in the spinneret is 318 to 320°C, and the spinning pack pressure is 130 to 200 bar, which is suitable for manufacturing high strength materials for paragliding. When the discharge pack pressure is less than 130 bar, quantitative dispensing is impossible, resulting in pharmacist and physical property degradation. When the radiation pack pressure exceeds 200 bar, a polymer leaks out of the detention pack. The yarns simultaneously melt-spinned through the spinneret are solidified by cooling while passing through the yarn cooling section under the spinneret as in the conventional method, cooling the discharged molten polymer with 0.43 to 0.45 m/sec cooling air. Solidify while passing through wealth.

이후 제1고뎃롤러, 제2고뎃롤러 및 제3고뎃롤러로 이루어진 연신부에서 연신비 3.7~3.9배로 3단연신하고 오일링을 하고 권취하는데, 연신비 3.7배미만에서는 강도가 약한 문제점이 발생하며, 3.9배를 초과한 경우에는 신도가 떨어지며 단사절이 발생한다. Afterwards, the stretching section consisting of the first Godet roller, the second Godet roller, and the third Godet roller is stretched 3.7 to 3.9 times in three steps, oiled and wound, and when the draw ratio is less than 3.7 times, the strength is weak. If the stomach is exceeded, the elongation falls and a monocle occurs.

이렇게 제조된 본 발명의 상기 폴리에스테르 삼각단면필라멘트는 섬도 20~24d/5f, 강도 6.50~6.90g/d, 신도 16.5~19.5%로서 고강도 Nylon66와 유사한 물성을 발현하면서도 염색성, 후가공성이 용이하며, 치수안정성, 공기투과도 등의 기능성이 우수한 필라멘트이다.The polyester triangular cross-section filament of the present invention thus prepared has a fineness of 20 to 24d/5f, a strength of 6.50 to 6.90g/d, and an elongation of 16.5 to 19.5%, while exhibiting properties similar to high-strength Nylon66, and is easy to dye and post-process, It is a filament with excellent functionality such as dimensional stability and air permeability.

그러므로 본 발명에 의하면, 고강도 나일론 66필라멘트와 유사한 물성을 발휘하면서도 염색성, 후가공성이 용이하며, 치수안정성, 공기투과도 등의 기능성이 우수한 삼각단면 필라멘트를 제공하여 원형단면 필라멘트와 비교할 때 공기투과도가 낮고 특유의 촉감 및 광택을 가지는 패러글라이딩용 원단을 제공할 수 있다. Therefore, according to the present invention, while exerting similar properties to high-strength nylon 66 filament, it is easy to dye and post-process, and provides triangular cross-section filaments with excellent dimensional stability, air permeability, etc. It is possible to provide a fabric for paragliding having a unique touch and luster.

도 1은 본 발명의 패러글라이딩용 고강도 폴리에스테르 삼각단면필라멘트의 단면사진이며,
도 2는 본 발명의 패러글라이딩용 고강도 폴리에스테르 삼각단면필라멘트를 제조하기 위한 방사구금단면도이다.1 is a cross-sectional photograph of a high strength polyester triangular cross-section filament for paragliding of the present invention,
Figure 2 is a spinneret cross-sectional view for producing a high-strength polyester triangular cross-section filament for paragliding of the present invention.

다음의 실시예에서는 본 발명의 패러글라이딩용 고강도 폴리에스테르 삼각단면필라멘트를 제조하는 비한정적인 예시를 하고 있다.In the following examples, non-limiting examples of manufacturing the high strength polyester triangular cross-section filament for paragliding of the present invention are given.

[실시예 1 및 비교예 1][Example 1 and Comparative Example 1]

하기 표 1의 물성을 가진 폴리에틸렌테레프탈레이트 폴리머를 표 2의 조건으로 용융시킨 후, 도 2에 도시된 바와 같이 돌기폭(W) 0.045~0.07mm, 돌기길이(L) 0.25~0.30 mm인 돌기가 형성되고, 삼각모양의 일변의 길이(A)는 0.230~0.450㎜인 각모서리에 돌기가 형성된 삼각모양의 방사구금을 통해 표 2의 조건으로 용융된 폴리머를 토출시키고, 토출된 용융상태의 폴리머를 냉각풍이 형성되는 냉각부를 통과시키면서 고화한 후, 3단연신하고 오일링을 하고 권취하여 본 발명의 패러글라이딩용 고강도 폴리에스테르 삼각단면필라멘트를 제조하였다.After melting the polyethylene terephthalate polymer having physical properties of Table 1 under the conditions of Table 2, as shown in Figure 2, the projection width (W) 0.045 ~ 0.07mm, the projection length (L) 0.25 ~ 0.30 mm projections Formed, and the length (A) of one side of the triangular shape is 0.230 ~ 0.450 mm, the molten polymer is discharged under the conditions of Table 2 through a triangular spinneret with projections formed on each corner, and the discharged polymer is melted. After solidifying while passing the cooling portion where the cooling wind was formed, three-stage stretching, oiling, and winding were performed to prepare a high strength polyester triangular cross-section filament for paragliding of the present invention.

IVIV 1.2891.289 Oligomer함유량(wt%)Oligomer content (wt%) 0.520.52 DSC 2nd.RDSC 2nd.R Tg(℃)Tg(℃) 86.7086.70 Tm(℃)Tm(℃) 269.40269.40 ColorColor LL 86.4786.47 aa -2.00-2.00 bb 4.994.99 COOH 말단(Equ./106g)COOH end (Equ./10 6 g) 2323 DEG 함유량(wt%)DEG content (wt%) 0.830.83 TiO2 함유량(ppm)TiO 2 content (ppm) 275275

실시예Example 1 One 비교예Comparative example 1 One Extruder온도범위(℃)Extruder temperature range (℃) 310~330310~330 290~325290~325 Extruder압력(Mpa)Extruder pressure (Mpa) 10~1110~11 1313 방사pack 온도(℃)Spinning pack temperature (℃) 318318 322322 방사pack압력(bar)Radiation pack pressure (bar) 80/18080/180 75/20075/200 유제투입량(rpm)Emulsion input (rpm) 2222 2222 냉각속도(sec)Cooling speed (sec) 0.430.43 0.430.43 meshmesh 1616 1616 Godet Rool 1Godet Rool 1 1,0901,090 1,2801,280 Godet Rool 2Godet Rool 2 4,0804,080 3,9503,950 Godet Rool 3Godet Rool 3 4,2004,200 4,1004,100 Take-Off RollTake-Off Roll 4,1954,195 4,1004,100 최종연신비(배율)Final stretch ratio (magnification) 3.853.85 3.203.20

실시예 1Example 1 비교예 1Comparative Example 1 섬도Island 20d/5f20d/5f 20d/5f20d/5f 강도(g/d)Strength (g/d) 6.616.61 4.904.90 신도(%)Elongation (%) 17.517.5 2828

W : 돌기폭 L: 돌기길이
A : 삼각모양의 일변의 길이W: protrusion width L: protrusion length
A: Triangular side length

Claims (3)

폴리에틸렌테레프탈레이트 폴리머를 용융시킨 후, 각모서리에 돌기가 형성된 삼각모양의 방사구금을 통해 방사팩 온도는 318~320℃로 방사팩압력 130~200bar로 상기 용융된 폴리머를 토출시키고, 토출된 용융상태의 폴리머를 0.43~ 0.45m/sec의 냉각풍이 형성되는 냉각부를 통과시키면서 고화한 후, 연신비 3.7~3.9배로 3단연신하고 오일링을 하고 권취하는 것을 특징으로 하는 단사섬도 1.5~1.7d급 패러글라이딩용 고강도 폴리에스테르 삼각단면필라멘트의 제조방법.After the polyethylene terephthalate polymer is melted, the spinning pack temperature is 318-320°C through a triangular spinneret with protrusions formed on each corner, and the molten polymer is discharged at a spinning pack pressure of 130-200 bar, and the discharged molten state After solidifying the polymer of 0.43~0.45m/sec while passing the cooling section where the cooling wind is formed, the single yarn fineness of 1.5~1.7d class paragliding is characterized in that it is stretched in three steps at a stretching ratio of 3.7-3.9 times, oiled and wound. For manufacturing high strength polyester triangular cross-section filaments. 제 1항에 있어서,
상기 폴리에틸렌테레프탈레이트 폴리머는 고유점도 1.3~1.4㎗/g인 것을 특징으로 하는 단사섬도 1.5~1.7d급 패러글라이딩용 고강도 폴리에스테르 삼각단면필라멘트의 제조방법.According to claim 1,
The polyethylene terephthalate polymer is a method of manufacturing a high-strength polyester triangular cross-section filament for single gliding fineness 1.5 to 1.7d class, characterized in that the intrinsic viscosity is 1.3 to 1.4 ㎗/g. 제 1항에 있어서,
상기 각모서리에 돌기가 형성된 삼각모양의 방사구금은 돌기폭(W) 0.045~0.07 mm, 돌기길이(L) 0.25~0.30 mm인 돌기가 형성되고, 삼각모양의 일변의 길이(A)는 0.230~0.450㎜인 것을 특징으로 하는 단사섬도 1.5~1.7d급 패러글라이딩용 고강도 폴리에스테르 삼각단면필라멘트의 제조방법.According to claim 1,
The triangular spinneret with protrusions formed on each corner has protrusions (W) of 0.045 to 0.07 mm, protrusions (L) of 0.25 to 0.30 mm, and the length (A) of one side of the triangle is 0.230 to A method of manufacturing a high-strength polyester triangular cross-section filament for paragliding with a single yarn fineness of 1.5 to 1.7d, characterized in that it is 0.450 mm.
KR1020180169229A 2018-12-26 2018-12-26 Process Of Producing 1.5~1.7 Denier Per Filament High Tenacity Polyester Having Triangular Cross-section For Paragliding KR20200079746A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050070225A (en) 2003-12-30 2005-07-07 주식회사 효성 A technical polyester fiber with high tenacity and low shrinkage and its manufacturing method
KR100650886B1 (en) 2005-12-30 2006-11-28 주식회사 효성 Industrial polyester fiber with super high tenacity and its manufacturing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050070225A (en) 2003-12-30 2005-07-07 주식회사 효성 A technical polyester fiber with high tenacity and low shrinkage and its manufacturing method
KR100650886B1 (en) 2005-12-30 2006-11-28 주식회사 효성 Industrial polyester fiber with super high tenacity and its manufacturing method

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