KR20080098961A - Lip Cords for Optical Cables - Google Patents

Lip Cords for Optical Cables Download PDF

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KR20080098961A
KR20080098961A KR1020070044426A KR20070044426A KR20080098961A KR 20080098961 A KR20080098961 A KR 20080098961A KR 1020070044426 A KR1020070044426 A KR 1020070044426A KR 20070044426 A KR20070044426 A KR 20070044426A KR 20080098961 A KR20080098961 A KR 20080098961A
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South Korea
Prior art keywords
filament
optical cable
aromatic polyamide
wholly aromatic
cord
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KR1020070044426A
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Korean (ko)
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KR100938227B1 (en
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태 학 박
창 배 이
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주식회사 코오롱
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Priority to PCT/KR2008/002598 priority patent/WO2008136650A1/en
Priority to ES08753393.1T priority patent/ES2576463T3/en
Priority to EP08753393.1A priority patent/EP2142952B1/en
Priority to CN2008800153423A priority patent/CN101681007B/en
Priority to US12/598,998 priority patent/US20100129655A1/en
Priority to JP2010507328A priority patent/JP5400035B2/en
Priority to PCT/KR2008/002597 priority patent/WO2008136649A1/en
Publication of KR20080098961A publication Critical patent/KR20080098961A/en
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Publication of KR100938227B1 publication Critical patent/KR100938227B1/en
Priority to US13/655,885 priority patent/US20130040053A1/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4431—Protective covering with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping
    • 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
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • D01F6/605—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides from aromatic polyamides
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4432—Protective covering with fibre reinforcements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/56—Processes for repairing optical cables
    • G02B6/564—Repair sets

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Ropes Or Cables (AREA)

Abstract

본 발명은 광케이블용 립코드(Ripcord)에 관한 것으로서, 전방향족 폴리아미드 필라멘트와 전방향족 폴리아미드 필라멘트 이외의 기능성 산자용 필라멘트가 50~99중량% : 1~50중량%의 비율로 합연사 되어 있는 것을 특징으로 한다.The present invention relates to a lipcord for an optical cable, wherein the functional acid filaments other than the wholly aromatic polyamide filament and the wholly aromatic polyamide filament are blended in a ratio of 50 to 99% by weight: 1 to 50% by weight. It is characterized by.

본 발명은 전방향족 폴리아미드 필라멘트와 그와는 다른 기능성 산자용 필라멘트가 합연사에 의해 혼합된 하이브리드(Hybrid) 상태이기 때문에 전방향족 폴리아미드 필라멘트에 의해 모듈러스 등의 기계적 물성이 우수함과 동시에 기능성 산자용 필라멘트에 의해 염색성 및 벌키성 등의 부가 기능도 구비한다.Since the present invention is in a hybrid state in which the wholly aromatic polyamide filament and the functional filaments other than those thereof are mixed by twisted yarns, the present invention has excellent mechanical properties such as modulus by the wholly aromatic polyamide filament, The filament also has additional functions such as dyeability and bulkiness.

Description

광케이블용 립코드{Ripcord of optic cables}Ripcord of optic cables

도 1은 광케이블의 단면 개략도.1 is a cross-sectional schematic diagram of an optical cable.

* 도면 중 주요부분에 대한 부호 설명* Explanation of symbols on the main parts of the drawings

1 : 광섬유 2 : 보강재 1: optical fiber 2: reinforcing material

3 : 립코드(Ripcord) 4 : 수지 피복층3: Ripcord 4: Resin coating layer

본 발명은 광케이블용 립코드(Ripcord)에 관한 것으로서, 보다 구체적으로는 전방향족 폴리아미드 필라멘트와 그와는 다른 기능성 산자용 필라멘트가 합연사에 의해 혼합된 하이브리드(Hybrid) 형태로 모듈러스 등의 기계적 물성이 우수함과 동시에 염색성 등의 부가기능도 구비하는 광케이블용 립코드에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lipcord for an optical cable, and more particularly to mechanical properties such as modulus in a hybrid form in which a wholly aromatic polyamide filament and a functional functional filament other than that are mixed by a twisted yarn. The present invention relates to a lip cord for an optical cable that is excellent in addition to this and has additional functions such as dyeability.

광케이블용 립코드는 일명 커팅섬유(Cutting fiber) 라고도 칭해지며, 광케이블의 수지 코팅층을 쉽게 커팅하여 벗겨주는 역할을 한다.The lip cord for the optical cable is also called cutting fiber, and easily cuts and peels off the resin coating layer of the optical cable.

일반적으로 광케이블은 도 1에 도시된 바와 같이 광케이블의 중앙부에 위치하는 광섬유(1), 상기 광섬유(1)를 보호하기 위해 광섬유를 감싸고 있는 보강재(2), 상기 보강재(2)와 섞여 있는 립코드(3) 및 상기 보강재(2)와 립코드(3) 외주에 형성된 수지 코팅층(4)으로 구성된다.In general, an optical cable is an optical fiber (1) located in the center of the optical cable as shown in Figure 1, the reinforcement (2) surrounding the optical fiber to protect the optical fiber (1), the lip cord mixed with the reinforcement (2) (3) and the resin coating layer 4 formed on the outer circumference of the reinforcing material 2 and the lip cord 3.

도 1은 광케이블의 단면 개략도이다.1 is a schematic cross-sectional view of an optical cable.

상기 보강재(2)로는 통상적으로 여러가닥의 전방향족 폴리아미드 필라멘트들이 무연(無撚) 상태로 합사되어 있는 전방향족 폴리아미드 필라멘트 다발이 많이 사용된다.As the reinforcing material 2, a wholly aromatic polyamide filament bundle in which several strands of wholly aromatic polyamide filaments are spun in a lead-free state is commonly used.

상기 보강재(2)는 광섬유(1)를 보호하는 역할을 한다.The reinforcing material 2 serves to protect the optical fiber 1.

한편, 상기 립코드(3)는 광케이블의 수리 등을 위해 광케이블의 수지 코팅층(4)을 쉽게 벗겨내는 역할을 한다. 다시말해 광케이블의 수리시에 상기 립코드(3)을 찾아 당겨주면 광케이블의 수지코팅층(4)을 쉽게 벗겨낼 수 있다.On the other hand, the lip cord 3 serves to easily peel off the resin coating layer 4 of the optical cable for repairing the optical cable. In other words, when the rip cord 3 is found and pulled out when the optical cable is repaired, the resin coating layer 4 of the optical cable can be easily peeled off.

광케이블의 수리시 광케이블의 수지 코팅층(4)을 쉽게 커팅하여 벗겨내기 위해서는 상기 보강재(2)들 중에서 상기 립코드(3)를 용이하게 식별할 수 있는 것이 바람직 하다.In order to easily cut and peel off the resin coating layer 4 of the optical cable during repair of the optical cable, it is preferable that the lip cord 3 can be easily identified among the reinforcing materials 2.

종래의 광케이블용 립코드는 주로 여러가닥의 전방향족 폴리아미드 필라멘트들이 합연사되어 있는 것이 사용되어 왔다. 그러나 종래의 광케이블용 립코드는 전방향족 폴리아미드 필라멘트들로만 구성되기 때문에 모듈러스 등의 기계적 물성은 우수하나 염색성이 나쁘고, 염색시 강도가 저하되고, 염색견뢰도가 낮고, 제조원가가 높은 등 여러가지 문제점이 있었다.Conventional lip cords for optical cables have been used in which several strands of wholly aromatic polyamide filaments are fused together. However, since the conventional lip cord for optical cable is composed only of wholly aromatic polyamide filaments, mechanical properties such as modulus are excellent, but stainability is poor, strength at the time of dyeing is low, color fastness is low, and manufacturing cost is high.

특히 종래의 광케이블용 립코드는 염색성 및 염색견뢰도가 나빠 광케이블 수리시 보강재(2)들 중에서 립코드(3)를 식별하기 어려운 문제점이 있었다.In particular, the conventional lip cord for the optical cable has a problem that it is difficult to identify the lip cord (3) from the reinforcing materials (2) during the repair of the optical cable because of poor dyeability and dye fastness.

또 다른 종래의 광케이블용 립코드로 대한민국 등록특허 제0373235호에서는 꼬임수가 200~500회/미터인 여러가닥의 폴리에스테르사를 1,500~12,000데니어까지 합사하여 제조한 광케이블용 립코드를 제안하고 있으나, 상기 립코드는 폴리에스테르사만으로 구성되어 염색성이 양호하여 식별은 용이하나 전방향족 폴리아미드 섬유로 이루어진 립코드와 비교시 요구되는 모듈러스 등의 기계적 물성을 만족하기 위해서는 데니어가 굵어지고 중량이 무거워지는 문제가 있다.As another conventional optical cable rip cord, Republic of Korea Patent No. 0373235 proposes an optical cable lip cord manufactured by incorporating several strands of polyester yarn having a twist number of 200 to 500 times / meter up to 1,500 to 12,000 denier. The lip cord is composed of polyester yarn only, so that the dyeability is easy to identify, but the denier becomes thick and heavy in order to satisfy the mechanical properties such as modulus required in comparison with the lip cord made of wholly aromatic polyamide fibers. There is.

본 발명의 목적은 상기와 같은 종래의 문제점들을 해결함으로써, 식별이 용이하며 모듈러스 등의 기계적 강도가 우수하며, 기타 부가기능도 구비하는 광케이블용 립코드를 제공하기 위한 것이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a lip cord for an optical cable that can be easily identified, has excellent mechanical strength such as modulus, and also has other additional functions by solving the conventional problems as described above.

본 발명은 우수한 기계적 물성과 염색성 등의 기타 부가기능을 동시에 부여하기 위해서, 전방향족 폴리아미드 필라멘트와 전방향족 폴리아미드 필라멘트가 아닌 기능성 산자용 필라멘트가 합연사에 의해 혼합되어있는 하이브리드(Hybrid) 상태의 광케이블용 립코드를 제공하고자 한다.The present invention provides a hybrid state in which functional filaments other than the wholly aromatic polyamide filament and the wholly aromatic polyamide filament are mixed by a twisted yarn in order to simultaneously provide other additional functions such as excellent mechanical properties and dyeability. To provide a lip cord for an optical cable.

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

도 1은 광케이블의 단면 개략도이다.1 is a schematic cross-sectional view of an optical cable.

본 발명의 광케이블용 립코드는 전방향족 폴리아미드 필라멘트와 전방향족 폴리아미드 필라멘트 이외의 기능성 산자용 필라멘트가 50~99중량% : 1~50중량%의 비율로 합연사 되어 있는 것을 특징으로 한다.The lip cord for an optical cable of the present invention is characterized in that the filament for functional acid filaments other than the wholly aromatic polyamide filament and the wholly aromatic polyamide filament are twisted together at a ratio of 50 to 99% by weight: 1 to 50% by weight.

상기 기능성 산자용 필라멘트는 폴리에틸렌테레프탈레이트 필라멘트, 폴리아미드 필라멘트, 레이온 필라멘트, 고분자량을 갖는 폴리에틸렌 필라멘트 및 폴리벤조나이트 필라멘트로 이루어지는 그룹 중에서 선택된 1종 등이다.The functional acid filament is one selected from the group consisting of polyethylene terephthalate filament, polyamide filament, rayon filament, polyethylene filament having high molecular weight and polybenzoite filament.

본 발명의 광케이블용 립코드 내 전방향족 폴리아미드 필라멘트가 50중량% 미만인 경우, 다시말해 기능성 산자용 필라멘트가 50중량%를 초과하는 경우에는 모듈러스 등의 기계적 물성이 저하된다.When the wholly aromatic polyamide filament in the rip cord for the optical cable of the present invention is less than 50% by weight, that is, when the functional acid filament exceeds 50% by weight, mechanical properties such as modulus decrease.

한편, 기능성 산자용 필라멘트가 1중량% 미만인 경우에는 염색성 및 벌키성 등의 부가 기능이 효과적으로 발현되지 않는다.On the other hand, when the functional filament for filaments is less than 1% by weight, additional functions such as dyeability and bulkiness are not effectively expressed.

구체적으로, 상기 기능성 산자용 필라멘트로 폴리에스테르 필라멘트, 폴리아미드 필라멘트 또는 레이온 필라멘트를 사용하면 염색성과 염색견뢰도가 향상되고, 고분자량의 폴리에틸렌 필라멘트를 사용하면 모듈러스 등의 기계적 물성이 더욱 향상된다.Specifically, the use of polyester filament, polyamide filament or rayon filament as the functional filament filament improves dyeing and dyeing fastness, and the use of high molecular weight polyethylene filament further improves mechanical properties such as modulus.

본 발명의 광케이블 립코드는 강력이 50~80kgf이고, 총섬도가 3,000~5,000데니어인 것이 바람직하다.The optical cable rip cord of the present invention has a strength of 50 to 80 kgf, and preferably has a total fineness of 3,000 to 5,000 denier.

본 발명의 광케이블 립코드는 통상의 합연사기에서 전방향족 폴리아미드 필라멘트들과 상기 기능성 산자용 필라멘트들을 상기 중량비로 합연사하여 제조할 수 있다.The optical cable lip cord of the present invention may be manufactured by jointly twisting the wholly aromatic polyamide filaments and the functional acid filaments in the weight ratio in a conventional twisted yarn.

본 발명은 모듈러스 등의 기계적 물성이 우수함과 동시에 염색성 등의 기타 부가기능도 구비한다. 또한, 본 발명은 염색시 강도 저하가 적고, 염색견뢰도 및 염색성이 우수하며 광케이블 수리시 식별이 용이하고, 제조원가도 저렴하다.The present invention is excellent in mechanical properties such as modulus and at the same time has other additional functions such as dyeability. In addition, the present invention has a low strength degradation during dyeing, excellent dyeing fastness and dyeing properties, easy identification when repairing the optical cable, and low manufacturing cost.

Claims (4)

전방향족 폴리아미드 필라멘트와 전방향족 폴리아미드 필라멘트 이외의 기능성 산자용 필라멘트가 50~99중량% : 1~50중량%의 비율로 합연사 되어 있는 것을 특징으로 하는 광케이블용 립코드.A rip cord for an optical cable, in which functional filaments for functional acid filaments other than the wholly aromatic polyamide filament and the wholly aromatic polyamide filament are twisted together at a ratio of 50 to 99% by weight: 1 to 50% by weight. 제1항에 있어서, 기능성 산자용 필라멘트가 폴리에틸렌테레프탈레이트 필라멘트, 폴리아미드 필라멘트, 레이온 필라멘트, 고분자량을 갖는 폴리에틸렌 필라멘트 및 폴리벤조나이트 필라멘트로 이루어지는 그룹 중에서 선택된 1종인 것을 특징으로 하는 광케이블용 립코드.The optical cord lip cord according to claim 1, wherein the functional filament filament is one selected from the group consisting of polyethylene terephthalate filament, polyamide filament, rayon filament, polyethylene filament having a high molecular weight, and polybenzoite filament. 제1항에 있어서, 광케이블용 립코드의 강력이 50~80kgf인 것을 특징으로 하는 광케이블용 립코드.The rip cord for an optical cable according to claim 1, wherein the strength of the rip cord for the optical cable is 50 to 80 kgf. 제1항에 있어서, 광케이블용 립코드의 총섬도는 3,000~5,000데니어인 것을 특징으로 하는 광케이블용 립코드.The rip cord for an optical cable according to claim 1, wherein the total fineness of the rip cord for the optical cable is 3,000 to 5,000 denier.
KR1020070044426A 2007-05-08 2007-05-08 Lip Cords for Optical Cables Expired - Fee Related KR100938227B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
KR1020070044426A KR100938227B1 (en) 2007-05-08 2007-05-08 Lip Cords for Optical Cables
ES08753393.1T ES2576463T3 (en) 2007-05-08 2008-05-08 Optical cable tear rope and its manufacturing method
EP08753393.1A EP2142952B1 (en) 2007-05-08 2008-05-08 Ripcord of optic cables and method of manufacturing the same
CN2008800153423A CN101681007B (en) 2007-05-08 2008-05-08 Ripcord of optic cables and method of manufacturing the same
PCT/KR2008/002598 WO2008136650A1 (en) 2007-05-08 2008-05-08 Ripcord of optic cables and method of manufacturing the same
US12/598,998 US20100129655A1 (en) 2007-05-08 2008-05-08 Ripcord of optic cables and method of manufacturing the same
JP2010507328A JP5400035B2 (en) 2007-05-08 2008-05-08 Lip cord for optical cable and manufacturing method thereof
PCT/KR2008/002597 WO2008136649A1 (en) 2007-05-08 2008-05-08 Ripcord of optic cables and method of manufacturing the same
US13/655,885 US20130040053A1 (en) 2007-05-08 2012-10-19 Ripcord of optic cables and method of manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070044426A KR100938227B1 (en) 2007-05-08 2007-05-08 Lip Cords for Optical Cables

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KR20080098961A true KR20080098961A (en) 2008-11-12
KR100938227B1 KR100938227B1 (en) 2010-01-22

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5442722A (en) 1994-07-25 1995-08-15 Siecor Corporation Optical fiber ribbon with zip cord
JPH11185534A (en) * 1997-12-17 1999-07-09 Sumitomo Electric Ind Ltd Rip-cord cable
JPH11185535A (en) 1997-12-17 1999-07-09 Sumitomo Electric Ind Ltd Cable with lip cord or lip cord insertion hole
KR100373235B1 (en) * 2000-11-01 2003-02-25 최연배 Optical fiber cable manufacturing process

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