KR880001702B1 - Tire cord's weft yarn - Google Patents

Tire cord's weft yarn Download PDF

Info

Publication number
KR880001702B1
KR880001702B1 KR1019860010455A KR860010455A KR880001702B1 KR 880001702 B1 KR880001702 B1 KR 880001702B1 KR 1019860010455 A KR1019860010455 A KR 1019860010455A KR 860010455 A KR860010455 A KR 860010455A KR 880001702 B1 KR880001702 B1 KR 880001702B1
Authority
KR
South Korea
Prior art keywords
yarn
tire cord
polyester
tire
weft yarn
Prior art date
Application number
KR1019860010455A
Other languages
Korean (ko)
Other versions
KR880007834A (en
Inventor
문향영
Original Assignee
주식회사 코오롱
이상철
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 코오롱, 이상철 filed Critical 주식회사 코오롱
Priority to KR1019860010455A priority Critical patent/KR880001702B1/en
Publication of KR880007834A publication Critical patent/KR880007834A/en
Application granted granted Critical
Publication of KR880001702B1 publication Critical patent/KR880001702B1/en

Links

Images

Classifications

    • 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
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Tires In General (AREA)

Abstract

The non-drawn weft yarn for tire cord has >= 40X10-3 of birefringence degree, <=25% dry heat shrinkage, >= 400g strength at break and 120% elongation at break when the weft yarn was treated after fabricating for tire cord. Thus, 0.65 inherent viscosity of polyester was bulk- polymerized and melt-spun at a die nozzle to give polyester yarn. Then the polyester yarn was oriented better by heating and cooled and treated with mineral oil. The attaching ratio of the oil to the polyester yarn was 0.6-1.0.

Description

타이어 코드(Tire cord)용 위사Weft for Tire Cord

제 1도는 본 발명의 제조공정개략도.1 is a manufacturing process schematic diagram of the present invention.

제 2도는 제1도중 가열 및 냉각통 부분의 상세도.2 is a detailed view of the heating and cooling vessel portion of FIG.

본 발명은 타이어 코드(Tire cord)용 위사에 관한 것이다.The present invention relates to a weft for tire cords.

일반적으로 타이어코드는 타이어의 보강역활을 하는 고강도의 경사와 이와같은 경사의 배열성을 후가공할 때 및 타이어성형 할 때에도 그대로 유지시키기 위하여 세번수의 면사나 레이욘사로 되어있는 위사를 적은 밀도로 직성하여서 된것이다.In general, tire cords have a high density of weft yarns made of cotton yarn or rayon yarn with low density in order to maintain the high strength warp that serves as a tire reinforcement and the arrangement of such warp during post processing and tire shaping. It was done.

그런데 종래의 것은 절단신도가 낮으며 강력이 약했기 때문에 타이어코드를 가공할 때 위사가 쉽게 절단됨으로 말미아마 경사의 배열성을 나쁘게 하고 또 타이어 성형시에, 특히 래디얼 타이러(Radial tire)의 경우에는 심하게 타이어코드의 위사방향으로서의 신장력 때문에 위사의 절단이 빈번하게 일어나고 결국 이것이 타이어 내부에서 경사밀도의 불균일현상을 야기시켜서 타이어의 성능을 저해하게 되는 문제점이 있었다.However, the conventional one has a low cutting elongation and a weak strength, so that the weft thread is easily cut when processing the tire cord, thereby deteriorating the arrangement of the inclined yarn, and in the case of forming a tire, in particular, a radial tire There is a problem in that the weft is frequently cut due to the elongation force in the weft direction of the tire cord, which eventually causes the non-uniformity of the inclination density inside the tire, thereby impairing the performance of the tire.

본 발명은 이와같은 문제점을 해결하기 위하여 고배향성, 고신도성 및 고강력성의 폴리에스터 미연신사를 타이어코드용 위사로 사용함을 특징으로 하는 것이다.The present invention is characterized by using a polyester unstretched yarn of high orientation, high elongation and high strength as a weft for tire cord to solve such problems.

본 발명을 더욱 상세히 설명하면 다음과 같다.The present invention is described in more detail as follows.

본 발명의 폴리에스터 미연신사는 복굴절율(△n)이 40×10-3이상이고 건열수축율(s)이 25%이하이며, 절단강력이 400g이상의 미연신사이며 타이어코드로 제직한 것을 후처리하였을때에 그 절단신도가 120% 이상의 것이다.The polyester non-drawn yarn of the present invention has a birefringence (△ n) of 40 × 10 -3 or more, dry heat shrinkage (s) of 25% or less, cutting strength of more than 400 g of non-drawn yarn and weaved the tire cord The elongation at break is 120% or more.

본 발명에서 폴리에스터사의 복굴절율(△n)이 40×10-3보다 적게되면 섬유의 내부구조가 불안정하게 되어서 열수축율이 커지고 동시에 건열수축율이 크게되어서 타이어코드용 위사로 사용하기에 부적합하다.In the present invention, when the birefringence (Δn) of polyester yarn is less than 40 × 10 −3 , the internal structure of the fiber becomes unstable, resulting in a large heat shrinkage rate and a large dry heat shrinkage rate.

또 건열수축율이 25% 보다 크게되면 타이어코드의 후처리가공후에 신도의 저하가 커지기 때문에 나쁘다.In addition, if the dry heat shrinkage is greater than 25%, the elongation of the tire cord is increased after the post-treatment of the tire cord.

아울러 절단강력이 400g 이상이 되어야만 타이어코드의 경사에 대한 파지력이 좋아져서 경사배열의 불균일 현상을 방지할 수가 있다.In addition, the cutting force should be more than 400g to improve the grip force on the inclination of the tire cord to prevent the uneven phenomenon of the inclination arrangement.

본 발명의 포릴에스터 미연신사의 제조방법을 설명하면 다음과 같다.Referring to the manufacturing method of the polyester unstretched yarn of the present invention is as follows.

고유점도가 0.7 이상의 폴리에스터칩을 제1도 및 제2도의 장치를 사용하여서 방사속도를 3,000m/분 이상이 되게하여 제조한다.A polyester chip having an intrinsic viscosity of 0.7 or more is produced using the apparatus of FIGS. 1 and 2 so that the spinning speed is set to 3,000 m / min or more.

특히 구금 직하에 길이가 100-300m/m, 특히 좋기로는 200m/m이고, 내경이 100m/m인 가열통을 두어서 150-250℃의 온도로 토출된 폴리머를 가열함으로서 분자배향성이 향상되도록 하였다.In particular, the molecular orientation is improved by heating a polymer discharged at a temperature of 150-250 ° C. by placing a heating vessel having a length of 100-300 m / m, particularly preferably 200 m / m, and having an inner diameter of 100 m / m directly under the detention. It was.

본 발명의 폴리에스터 미연신사의 그 고유점도가 0.7 이상의 것이 좋다.The intrinsic viscosity of the polyester non-drawn yarn of the present invention is preferably 0.7 or more.

만일 고유점도가 0.7보다 적게되면 후처리 공정에서 섬유의 열 열화(熱 劣化)가 커지고 신도가 급격히 저하되므로 좋지않다.If the intrinsic viscosity is less than 0.7, it is not good because the thermal degradation of the fiber in the post-treatment process increases and the elongation rapidly decreases.

본 발명의 폴리에스터 미연신사를 타이어코드용 위사로 사용함에 있어서는 이것에 면, 또는 레이욘의 단섬유사를 피복하거나 합연하여 사용한다.In using the polyester non-stretched yarn of the present invention as a weft for tire cord, it is used by covering or combining cotton or rayon short fiber yarn.

면사의 경우 중량비로 30%가 되도록 본 발명의 폴리에스터 미연신사와 코어얀으로 하거나 합연사로 하여 사용하면 좋다.In the case of cotton yarn, it may be used as the polyester undrawn yarn and the core yarn of the present invention so as to be 30% by weight, or as a twisted yarn.

본 발명의 폴리에스터 미연신사를 사용한 타이어코드용 위사는 타이어코드의 후가공시는 물론 타이어의 성형시에도 절단이나 변형을 일이키지 않으므로 경사배열의 안정상과 균일성을 확보해주며 따라서 타이어의 보강역활을 완전하게 할 수 있는 것이다.The tire cord weft yarn using the unstretched polyester of the present invention ensures stability and uniformity of the inclined arrangement since it does not cause cutting or deformation during tire processing as well as after processing of the tire cord. It is possible to complete the role.

[실시예 1-4 및 비교예1-5]Example 1-4 and Comparative Example 1-5

가)테레프탈산과 에틸렌 글리콜과를 축중합에서 생산한 고유점도 I.V=0.65의 칩을 사용해 진공건조기에서 고상중합해 제1도의 방사기로 용융방사하여 제2도의 가열통에서 고배향시키고 냉각시킨 필라멘트를 오일로울러에서 광물유 오일을 사용하여 부착량이 0.6-1.0 수준이 되도록 부착한다.(A) Solid phase polymerization of a terephthalic acid and ethylene glycol by condensation polymerization using chips of intrinsic viscosity IV = 0.65 in a vacuum dryer, followed by melt spinning with a spinning machine in FIG. In the rollers, attach with mineral oil to ensure that the adhesion is between 0.6 and 1.0.

오일링된 필라멘트를 고칩 로울러를 거쳐 권취기에서 3000-4000m/분 속도로 권취하여 생산된 미연신사의 물성과 비교에 1-5의 조건으로 제조한 미연신사의 물성은 표(1)과 같다.The properties of the undrawn filaments manufactured under the conditions of 1-5 are compared with those of the undrawn filaments produced by winding oiled filaments at a winding machine at a speed of 3000-4000 m / min through a high chip roller, as shown in Table (1).

(1)건조 조건(1) Drying condition

·온도 :235℃Temperature: 235 ℃

·진공도 : 0.1mmHgVacuum degree: 0.1mmHg

·고상중합시간 : 15-25 시간Solid state polymerization time: 15-25 hours

·건조 칩 I.V : 0.80-1.0Dry chip I.V: 0.80-1.0

(2) 방사 조건(2) radiation conditions

·용융온도 : 270-290℃Melting temperature: 270-290 ℃

·구금공 수 : 36공Number of detainees: 36

·가열통내의 온도 : 150-250℃Temperature in heating tube: 150-250 ℃

·방사 속도 : 3000-4000rpmSpinning speed: 3000-4000rpm

[표(1)]Table (1)

Figure kpo00001
Figure kpo00001

나)실시예 1-4와 비교에 1-5의 폴리에스터 미연신사를 면사와 합연하여 코어편얀을 만들고 이것으로 타이어코드를 제직한 다음 열처리하고, 열처리한 타이어코드로 부터 위사를 빼내어 물성을 실험한 결과는 표(2)와 같다.B) Compare the example 1-4 with polyester non-stretched yarn of 1-5 with cotton yarn to make a core knitting yarn, weave tire cord with it, heat treatment, remove the weft yarn from the heat treated tire cord, and test the physical properties. One result is shown in Table (2).

(1) 제직조건(1) Weaving conditions

·품 종 : 폴리에스터 1000D/192FProduct type: polyester 1000D / 192F

·연 수 : 40회/10cm×40회/10cmNumber of Trains: 40times / 10cm × 40times / 10cm

·위사 PICK수 : 4본/5cmWeft PICK number: 4 books / 5cm

·제직량 : 시험 편 각각 10cmWeaving amount: Test piece 10cm

(2) 열처리 조건(ZELL DIPPING M/C)(2) Heat treatment condition (ZELL DIPPING M / C)

·접착제 : PHENOLIC + RESORCINOL - FORMALINE - LATEX 혼합액Adhesive: PHENOLIC + RESORCINOL-FORMALINE-LATEX Blend

·열처리 조건Heat treatment condition

Figure kpo00002
Figure kpo00002

[표(2)][Table (2)]

Figure kpo00003
Figure kpo00003

Claims (1)

복굴절율(△n)이 40×10-3이상이며, 건열수축율이 20% 이하이고, 절단 강력이 400g 이상이며 또 타이어코드로 제직한 다음 후처리하였을 때의 절단선도가 120%이상이 되는 폴리에스터 미연신사를 사용함을 특징으로 하고 이와같은 미연신사를 면사 또는 레이욘 방직사로 피복하거나 합연시켜서 된 타이어코드(Tire cord)용 위사.A polyrefractive index (△ n) of 40 × 10 -3 or more, dry heat shrinkage of 20% or less, cutting strength of 400 g or more, and a cutting line of 120% or more after weaving after weaving with a tire cord A weft yarn for tire cords, characterized by the use of ester undrawn yarns, coated or bonded with such undrawn yarns with cotton or rayon weaving yarns.
KR1019860010455A 1986-12-08 1986-12-08 Tire cord's weft yarn KR880001702B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019860010455A KR880001702B1 (en) 1986-12-08 1986-12-08 Tire cord's weft yarn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019860010455A KR880001702B1 (en) 1986-12-08 1986-12-08 Tire cord's weft yarn

Publications (2)

Publication Number Publication Date
KR880007834A KR880007834A (en) 1988-08-29
KR880001702B1 true KR880001702B1 (en) 1988-09-07

Family

ID=19253879

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860010455A KR880001702B1 (en) 1986-12-08 1986-12-08 Tire cord's weft yarn

Country Status (1)

Country Link
KR (1) KR880001702B1 (en)

Also Published As

Publication number Publication date
KR880007834A (en) 1988-08-29

Similar Documents

Publication Publication Date Title
EP0205960B1 (en) Very low creep, ultra high moduls, low shrink, high tenacity polyolefin fiber having good strength retention at high temperatures and method to produce such fiber
US4024895A (en) Product reinforcing fabric and two-component weft yarn useful therein
ES2014720A6 (en) Dimensionally stable polyester yarn for high tenacity treated cords.
CA2372428A1 (en) Poly(trimethylene terephthalate) yarn
KR100412178B1 (en) A process for preparing a polyester multifilament yarn for the industrial use
KR880001702B1 (en) Tire cord&#39;s weft yarn
EP0452405B1 (en) Process for dimensionally stable polyester yarn
US5085818A (en) Process for dimensionally stable polyester yarn
KR960003673B1 (en) Process for manufacturing a high-tenacity polyester fiber
US2975023A (en) Production of regenerated cellulose filaments
KR940011314B1 (en) High tenacity-low shrinkage polyester fiber and manufacturing method thereof
KR20000041244A (en) Polyester fiber having high strength and high elasticity and process for producing thereof
KR950002806B1 (en) Process for manufacturing polyester fiber by super high speed spinning method
JP2585820B2 (en) Polyester fiber for fishing net
KR930010802B1 (en) Method for preparation of polyester tyre cord or tyre cord yarn
KR100211137B1 (en) Polyethylene2,6-naphthalene dicarboxylate filament yarn and that manufacture method
KR950000717B1 (en) Process for preparing a polyester fiber process for preparing a polyester fiber
KR960002887B1 (en) High strength and low shrinkage polyester fiber and the method for manufacturing thereof
KR930010804B1 (en) Tyre cord
KR950004074B1 (en) Manufacturing methdo and device of different contraction mixing yarn for polyester
KR100252397B1 (en) Polyester multifilament yarn, dipped cord and method for production thereof
KR0132423B1 (en) Melt spinning method of polyester
KR940011313B1 (en) Process for drawing and heat setting of polyester fiber
KR880001783B1 (en) Anti pilling polyester fibers making method
KR950002812B1 (en) Process for the high speed spinning of polyester fiber

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 19980811

Year of fee payment: 11

LAPS Lapse due to unpaid annual fee