KR100372749B1 - Tire Caply Cord for Tire Polyethylenenaphthalate-nylon Hybrid - Google Patents

Tire Caply Cord for Tire Polyethylenenaphthalate-nylon Hybrid Download PDF

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KR100372749B1
KR100372749B1 KR10-2000-0070620A KR20000070620A KR100372749B1 KR 100372749 B1 KR100372749 B1 KR 100372749B1 KR 20000070620 A KR20000070620 A KR 20000070620A KR 100372749 B1 KR100372749 B1 KR 100372749B1
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South Korea
Prior art keywords
tire
cord
nylon
polyethylene naphthalate
denia
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KR10-2000-0070620A
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Korean (ko)
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KR20020040929A (en
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윤기용
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금호산업 주식회사
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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
    • D02G3/48—Tyre cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0042—Reinforcements made of synthetic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/005—Reinforcements made of different materials, e.g. hybrid or composite cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • 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
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2046—Tire cords
    • 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
    • D10B2505/00—Industrial
    • D10B2505/02—Reinforcing materials; Prepregs
    • D10B2505/022—Reinforcing materials; Prepregs for tyres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00—Textiles: spinning, twisting, and twining
    • Y10S57/902—Reinforcing or tire cords

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Tires In General (AREA)

Abstract

본 발명은 폴리에틸렌나프탈레이트-나일론의 복합섬유로 구성된 타이어 캡플라이 코드에 관한 것이다.The present invention relates to a tire cap fly cord composed of a composite fiber of polyethylene naphthalate-nylon.

본 발명은 고무와의 접착력이 좋은 나일론과 고속주행 안정성 및 내구성능이 좋은 폴리에틸렌나프탈레이트를 서로 꼬아서 복합섬유를 형성하여 이를 타이어의 캡플라이용 코드로 사용함으로써 타이어의 고속주행 안정성 및 내구성을 향상시키는 것을 목적으로 한다The present invention is to improve the high-speed driving stability and durability of the tire by twisting the nylon with good adhesion to the rubber and polyethylene naphthalate with good high-speed driving stability and durability to form a composite fiber and using it as a cord for the cap ply of the tire Aim at

본 발명의 타이어 캡플라이용 코드는 폴리에틸렌나프탈레이트(PEN) : 나일론을 1:1∼2 내지 1∼2:1의 비로 꼬임수(twist per inch, TPI)가 10∼50인 복합섬유로 구성되고, 폴리에틸렌나프탈레이트 또는 나일론은 500∼2000 데니아(denia)인 것을 특징으로 한다.Cord for tire cap ply of the present invention is composed of a polyethylene naphthalate (PEN): nylon composite fiber having a twist per inch (TPI) of 10 to 50 in a ratio of 1: 1 to 2 to 1-2: , Polyethylene naphthalate or nylon is characterized in that 500 to 2000 denia (denia).

Description

폴리에틸렌나프탈레이트-나일론으로 구성된 타이어 캡플라이 코드{Tire Caply Cord for Tire Polyethylenenaphthalate-nylon Hybrid}Tire Caply Cord for Tire Polyethylenenaphthalate-nylon Hybrid

본 발명은 폴리에틸렌나프탈레이트-나일론의 복합섬유로 구성된 타이어 캡플라이 코드에 관한 것이다.The present invention relates to a tire cap fly cord composed of a composite fiber of polyethylene naphthalate-nylon.

최근 승용차의 고급화 및 도로의 발달에 따라 고속주행이 빈번하게 이루어져 타이어의 고속주행 안정성 및 내구성능이 매우 중요하게 대두되고 있으며 특히 저 편평비를 가지는 타이어에서는 더욱 중요시되고 있으며, 이러한 성능을 만족시키기 위해서 캡플라이를 타이어에 사용하는데 이러한 캡플라이에 사용하는 코드로 나일론-66 섬유 또는 폴리에틸렌나프탈레이트(PEN)를 주로 사용하고 있다.In recent years, high-speed driving is frequently made according to the development of high-quality cars and roads, and high-speed driving stability and durability of tires are very important. Especially, tires with low flatness ratio are more important. Is used for tires, and the cord used for these cap plies is mainly nylon-66 fiber or polyethylene naphthalate (PEN).

나일론 코드는 나일론 분자가 폴리아미드 구조를 가져 화학적인 접착에 매우 유리하여 접착에 대단히 유리한 구조를 가진 반면 고속주행 안정성 및 내구성능이 약하여 고속주행 안정성 및 내구성능을 향상시키기 위해서는 다수의 나일론 코드를 사용하여야 하나 이는 타이어 생산시 원가상승 및 타이어의 중량을 증가시키는 문제점이 있다.Nylon cord has a polyamide structure, which is very advantageous for chemical bonding and has a very advantageous structure for adhesion.However, in order to improve high-speed driving stability and durability, a number of nylon cords must be used to improve high-speed driving stability and durability. One, however, has a problem of cost increase and tire weight increase during tire production.

한편 하기 식 1로 나타낼 수 있는 폴리에틸렌나프탈레이트는 폴리에스터기를 바탕으로 벤젠기 2개가 있어서 열 및 장력에 의한 구조안정성이 대단히 우수하지만 반면 화학적 반응을 잘 하지 못하는 폴리에스터기 및 벤젠기로 구성되어 있어 고무와의 접착에서 매우 불리한 구조를 갖고 있다. 즉 고속주행 안정성 및 내구성능이 좋지만 고무와의 접착력이 약해 캡플라이 코드로 사용시 코드와 캡플라이로 사용하는 고무의 분리현상이 생겨 전체적으로 캡플라이의 수명을 단축시키는 문제점이 있다.On the other hand, polyethylene naphthalate, which can be represented by the following formula 1, has two benzene groups based on polyester groups, and thus has excellent structural stability due to heat and tension, but it is composed of polyester groups and benzene groups, which are difficult to chemically react. It has a very disadvantageous structure in adhesion with. That is, high-speed driving stability and durability are good, but the adhesive force with the rubber is weak, so when the cap fly cord is used, separation of the rubber used as the cord and the cap fly occurs, which shortens the life of the cap fly as a whole.

< 식 1 ><Equation 1>

본 발명은 상기의 문제점을 해결하기 위하여 고무와의 접착력이 좋은 나일론과 고속주행 안정성 및 내구성능이 좋은 폴리에틸렌나프탈레이트를 서로 꼬아서 복합섬유를 형성하여 이를 타이어의 캡플라이용 코드로 사용함으로써 타이어의 고속주행 안정성 및 내구성을 향상시키는 것을 목적으로 한다.The present invention is to solve the above problems by forming a composite fiber by twisting the nylon with good adhesion to the rubber and polyethylene naphthalate with good high-speed driving stability and durability to form a composite fiber and use it as a cord for the tire cap ply It aims at improving driving stability and durability.

본 발명의 타이어 캡플라이용 코드는 폴리에틸렌나프탈레이트(PEN) : 나일론을 1:1∼2 내지 1∼2:1의 비로 꼬임수(twist per inch, TPI)가 10∼50인 복합섬유로 구성되고, 폴리에틸렌나프탈레이트 또는 나일론은 500∼2000 데니아(denia)인 것을 특징으로 한다.Cord for tire cap ply of the present invention is composed of a polyethylene naphthalate (PEN): nylon composite fiber having a twist per inch (TPI) of 10 to 50 in a ratio of 1: 1 to 2 to 1-2: , Polyethylene naphthalate or nylon is characterized in that 500 to 2000 denia (denia).

상기에서 폴리에틸렌나프탈레이트 : 나일론을 복합섬유 구성시 폴리에틸렌나프탈레이트 1개당 나일론을 1∼2 개를 사용하거나 또는 나일론 1개당 폴리에틸렌나프탈레이트를 1∼2개를 사용하는 이유는 코드를 구성하는 섬유의 수가 3개를 초과하는 경우 구조가 복잡하여 물성하락이 발생할 수 있으며 코드의 두께가 지나치게 두꺼운 경우 실용성이 없기 때문에 코드를 구성하는 섬유는 3개가 적당하기 때문이다.In the above polyethylene naphthalate: When nylon is composed of composite fibers, one or two nylons per polyethylene naphthalate or one or two polyethylene naphthalates per nylon is used for the number of fibers constituting the cord. If there are more than three, the structure is complicated, and the physical properties may drop, and if the thickness of the cord is too thick, there is no practical use, so three fibers constituting the cord are suitable.

또한 폴리에틸렌나프탈레이트 또는 나일론을 500 데니아(denia) 미만 사용시 코드강도가 너무 낮아 타이어 캡플라이용으로 부적합한 문제점이 있고, 폴리에틸렌나프탈레이트 또는 나일론을 2000 데니아(denia) 초과 사용시 코드의 두께가 지나치게 두꺼워져 타이어의 중량이 증가하는 문제점이 있어 폴리에틸렌나프탈레이트 또는 나일론은 500∼2000 데니아(denia) 사이의 것을 사용하는 것이 좋다.In addition, when polyethylene naphthalate or nylon is used less than 500 denia, the cord strength is too low to be inadequate for tire cap plying, and when polyethylene naphthalate or nylon is used above 2000 denia, the thickness of the cord becomes too thick. There is a problem in that the weight of the polyethylene naphthalate or nylon is preferably used between 500 to 2000 denia (denia).

한편 폴리에틸렌나프탈레이트 : 나일론의 꼬임수(twist per inch, TPI)가 10 미만을 사용하면 코드의 직진성 유지 및 피로특성이 하락하는 문제가 있어 좋지 않고, 꼬임수가 50을 초과하면 코드강도가 하락하는 문제가 있기 때문에 폴리에틸렌나프탈레이트 : 나일론의 꼬임수(twist per inch, TPI)는 10∼50이 가장 좋다.On the other hand, when polyethylene naphthalate: twist of inch (TPI) of nylon is less than 10, there is a problem that the straightness of the cord is maintained and the fatigue property is not good. Polyethylene naphthalate because of the twist per inch (TPI) of nylon is 10 to 50 is the best.

이하 본 발명을 다음의 비교예, 실시예 및 시험예에 의하여 설명하고자 한다. 그러나 이들이 본 발명의 기술적 범위를 한정하는 것은 아니다.Hereinafter, the present invention will be described by the following comparative examples, examples and test examples. However, these do not limit the technical scope of the present invention.

<비교예 1>Comparative Example 1

1000 데니아 폴리에틸렌나프탈레이트 2개를 43꼬임수로 꼬아서 플라이용 코드 1000D/2P PEN을 제조하고 이를 승용차용 타이어 195/50R 15 규격의 카카스에 적용하여 강력, 중간신율, 열수축율에 대하여 측정하고 이의 결과를 아래의 표 1에 정리하여 나타내었다.Twist two 1000 denia polyethylene naphthalates with 43 twists to make a fly code 1000D / 2P PEN and apply it to carcasses of passenger car tires 195 / 50R 15 size for strength, medium elongation and heat shrinkage. The results are summarized in Table 1 below.

<비교예 2>Comparative Example 2

1500 데니아 폴리에틸렌나프탈레이트 2개를 35 꼬임수로 꼬아서 플라이용 코드 1500D/2P PEN을 제조하고 이를 승용차용 타이어 215/50R 15 규격의 카카스에 적용하여 강력, 중간신율, 열수축율에 대하여 측정하고 이의 결과를 아래의 표 1에 정리하여 나타내었다.Fly cord 1500D / 2P PEN was made by twisting two 1500 denia polyethylene naphthalates with 35 twists and applied to carcass of car tire 215 / 50R 15 size for strength, medium elongation and heat shrinkage. The results are summarized in Table 1 below.

<실시예 1><Example 1>

1000 데니아 폴리에틸렌나프탈레이트와 840 데니아 나일론을 43꼬임수로 꼬아서 플라이용 1000D-840D 복합코드를 제조하고 이를 승용차용 타이어 195/50R 15 규격의 카카스에 적용하여 강력, 중간신율, 열수축율에 대하여 측정하고 이의 결과를 아래의 표 1에 정리하여 나타내었다.The 1000D-840D composite cord for fly was prepared by twisting 1000 Denia polyethylene naphthalate and 840 Denia nylon with 43 twists and applied to carcass of 195 / 50R 15 standard for passenger car. The measured results are summarized in Table 1 below.

<실시예 2><Example 2>

1500 데니아 폴리에틸렌나프탈레이트 2개와 1260 데니아 나일론을 35 꼬임수로 꼬아서 플라이용 1500D/2-1260D 복합코드를 제조하고 이를 승용차용 타이어 215/50R 15 규격의 카카스에 적용하여 강력, 중간신율, 열수축율에 대하여 측정하고 이의 결과를 아래의 표 1에 정리하여 나타내었다.Twist two 1500 Denia polyethylenenaphthalates and 1260 Denia nylon with 35 twists to produce 1500D / 2-1260D composite cord for fly and apply it to carcass of 215 / 50R 15 standard for passenger car tires. The shrinkage ratio was measured and the results thereof are summarized in Table 1 below.

표 1. 비교예 및 실시예의 물성측정 결과Table 1. Property Measurement Results of Comparative Examples and Examples

항 목Item 비교예 1Comparative Example 1 비교예 2Comparative Example 2 실시예 1Example 1 실시예 2Example 2 강력(kg)Strong (kg) 14.014.0 2121 14.514.5 22.022.0 중간신율(6.8kg)(%)Medium elongation (6.8kg) (%) 3.23.2 2.52.5 4.54.5 3.73.7 열수축율(%)(177℃×2min, free)Heat Shrinkage (%) (177 ℃ × 2min, free) 0.50.5 0.30.3 2.82.8 2.62.6

<시험예><Test Example>

상기 비교예 1, 2 및 실시예 1,2의 코드를 각각의 승용차 타이어 규격의 카카스에 실차주행, 고속주행 안정성, 승차감, 접착력 등의 테스트를 하여 그 결과를 아래의 표 2에 정리하여 나타내었다. 아래 표 2의 결과에서 알 수 있듯이 고속주행 안정성 및 승차감은 비교예 및 실시예에서는 별다른 차이가 없었으나 실차주행 테스트 및 접착력 부분에서는 실시예가 비교예 보다 우수함을 알 수 있다.The codes of Comparative Examples 1, 2 and Examples 1 and 2 were tested on the car casing of each passenger car tire standard, such as actual vehicle driving, high-speed driving stability, ride comfort, adhesive strength, and the results are summarized in Table 2 below. It was. As can be seen from the results in Table 2 below, high-speed driving stability and ride comfort were not significantly different in Comparative Examples and Examples, but it can be seen that the Examples are superior to Comparative Examples in the actual driving test and adhesive force.

표 2. 비교예 밀 실시예의 테스트 결과Table 2. Test Results of Comparative Example Mill Example

항 목Item 비교예 1Comparative Example 1 비교예 2Comparative Example 2 실시예 1Example 1 실시예 2Example 2 실차주행(Field Test)Field Test 45,000km 주행 후 사고발생Accident after driving 45,000km 40,000km 주행 후 사고발생Accident after driving 40,000km 55,000km 주행 후 사고발생Accident after driving 55,000km 52,000km 주행 후 사고발생Accident after driving 52,000km 고속주행안정성High speed driving stability 6.06.0 5.95.9 5.85.8 5.85.8 승차감Ride 6.06.0 6.06.0 7.07.0 6.56.5 접착력Adhesion 주행 전Before driving 14kg/inch14kg / inch 12.5kg/inch12.5kg / inch 18kg/inch18kg / inch 15kg/inch15kg / inch 주행 후After driving 8kg/inch8kg / inch 7.5kg/inch7.5kg / inch 15.5kg/inch15.5kg / inch 12.5kg/inch12.5kg / inch

* 접착력 주행조건: 140km/hr로 500km 주행 전후* Adhesive driving condition: around 500km at 140km / hr

* 고속주행 안정성 및 승차감: 10점 만점을 기준으로 사람이 느끼는 지수로 1점 이상은 일반운전자가 느낄 수 있는 차이이고, 0.5 이상은 민감한 운전자가 느낄 수 있는 차이이다.* High Speed Driving Stability and Ride Comfort: It is an index felt by a human based on 10 out of 10 points, the difference that can be felt by the general driver, and the difference above 0.5 that a sensitive driver can feel.

상기 시험예의 결과에서처럼 알 수 있듯이 본 발명에 의해 구조안정성이 우수한 폴리에틸렌나프탈레이트와 접착성능이 우수한 나일론으로 구성된 폴리에틸렌나프탈레이트-나일론 복합섬유를 타이어 캡플라이용 코드로 사용함으로써 폴리에틸렌나프탈레이트만을 사용한 타이어 캡플라이에 비해 접착력을 보완하여 주행시 접착력 하락에 의한 사고 위험을 감소시킬 수 있으며, 코드가 유연하여 승차감을 개선할 수 있다.As can be seen from the results of the test example, by using the polyethylene naphthalate-nylon composite fiber composed of polyethylene naphthalate having excellent structural stability and nylon having excellent adhesive performance as a cord for tire cap plying, the tire cap using only polyethylene naphthalate according to the present invention. Compared to the fly, the adhesive force can be compensated to reduce the risk of accidents due to the reduced adhesive force while driving, and the cord is flexible to improve the riding comfort.

Claims (2)

타이어의 캡플라이 코드에 있어서, 코드는 폴리에틸렌나프탈레이트 : 나일론을 1:1∼2 내지 1∼2:1의 비로 꼬임수(twist per inch, TPI)가 10∼50인 복합섬유로 구성됨을 특징으로 하는 타이어 캡플라이용 코드In the cap fly cord of a tire, the cord is composed of a composite fiber having a twist per inch (TPI) of 10 to 50 in a ratio of polyethylene naphthalate: nylon of 1: 1 to 2 to 1 to 2: 1. Cord for tire cap fly 제 1항에 있어서, 폴리에틸렌나프탈레이트 또는 나일론은 500∼2000 데니아(denia)인 것을 특징으로 하는 타이어 캡플라이용 코드The cord for tire cap ply according to claim 1, wherein the polyethylene naphthalate or nylon is 500 to 2000 denia.
KR10-2000-0070620A 2000-11-25 2000-11-25 Tire Caply Cord for Tire Polyethylenenaphthalate-nylon Hybrid KR100372749B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100687045B1 (en) * 2005-12-29 2007-02-26 주식회사 효성 A method for producing hybrid dipped cord and hybrid dipped cord produced by the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0374203A (en) * 1989-08-15 1991-03-28 Bridgestone Corp Pneumatic tire
JPH0376840A (en) * 1989-08-15 1991-04-02 Bridgestone Corp Tire reinforcing fiber
JPH07310251A (en) * 1994-05-13 1995-11-28 Bridgestone Corp Pneumatic radial tire reinforced with organic fiber cord
WO1997001631A1 (en) * 1995-06-26 1997-01-16 Daiichi Pure Chemicals Co., Ltd. Stable plasmin solution

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0374203A (en) * 1989-08-15 1991-03-28 Bridgestone Corp Pneumatic tire
JPH0376840A (en) * 1989-08-15 1991-04-02 Bridgestone Corp Tire reinforcing fiber
JPH07310251A (en) * 1994-05-13 1995-11-28 Bridgestone Corp Pneumatic radial tire reinforced with organic fiber cord
WO1997001631A1 (en) * 1995-06-26 1997-01-16 Daiichi Pure Chemicals Co., Ltd. Stable plasmin solution

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100687045B1 (en) * 2005-12-29 2007-02-26 주식회사 효성 A method for producing hybrid dipped cord and hybrid dipped cord produced by the same

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