KR101427832B1 - Process for preparing high tenacity polyethylene terephthalate multifilament - Google Patents
Process for preparing high tenacity polyethylene terephthalate multifilament Download PDFInfo
- Publication number
- KR101427832B1 KR101427832B1 KR1020130001040A KR20130001040A KR101427832B1 KR 101427832 B1 KR101427832 B1 KR 101427832B1 KR 1020130001040 A KR1020130001040 A KR 1020130001040A KR 20130001040 A KR20130001040 A KR 20130001040A KR 101427832 B1 KR101427832 B1 KR 101427832B1
- Authority
- KR
- South Korea
- Prior art keywords
- polyethylene terephthalate
- yarn
- strength
- high tenacity
- terephthalate multifilament
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/04—Preventing the formation of frost or condensate
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0404—Cases or cabinets of the closed type
- A47F3/0408—Cases or cabinets of the closed type with forced air circulation
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0404—Cases or cabinets of the closed type
- A47F3/0426—Details
- A47F3/0434—Glass or transparent panels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/12—Removing frost by hot-fluid circulating system separate from the refrigerant system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/02—Sensors detecting door opening
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Artificial Filaments (AREA)
Abstract
본 발명은 고강력 폴리에틸렌 테레프탈레이트 멀티필라멘트의 제조방법에 관한 것으로 방사 노즐 아래의 냉각 구역에서 냉각풍의 공급 온도를 20℃ 이하로, 배출 온도를 60℃ 이하로 냉각 시키는 것을 특징으로 한다.
본 발명에 따른 방법은 원사 제조시 적정한 수준의 배향도를 가지는 미연신사를 얻을 수 있으며 낮은 연신비에서도 원사의 강력 및 높은 강력 이용율을 확보한 타이어코드 등의 용도에 적합한 폴리에틸렌 테레프탈레이트 멀티필라멘트를 얻을 수 있도록 한다.The present invention relates to a method for producing high tenacity polyethylene terephthalate multifilament, characterized in that the supply temperature of the cooling wind is lowered to 20 ° C or lower and the discharge temperature is lowered to 60 ° C or lower in a cooling zone below the spinning nozzle.
The method according to the present invention can be used to obtain an unstretched yarn having an appropriate degree of orientation in the production of yarn and to obtain a polyethylene terephthalate multifilament suitable for applications such as a tire cord securing strength and high strength utilization ratio of yarn even at a low stretching ratio do.
Description
본 발명은 고강력 폴리에틸렌 테레프탈레이트 멀티필라멘트의 제조방법에 관한 것으로, 보다 상세하게는 원사의 강력을 높이기 위해 냉각풍의 공급온도와 배출온도를 조절하여 고강도, 고모듈러스 및 저수축의 특성을 지님으로써, 타이어코드, 산업용 로프, 토목용 보강재, 웨빙용 및 시트벨트 등의 산업용 소재로 사용될 수 있는 고강력 폴리에틸렌 테레프탈레이트 멀티필라멘트의 제조방법에 관한 것이다.
The present invention relates to a method for producing high tenacity polyethylene terephthalate multifilament. More particularly, the present invention relates to a method for producing high tenacity polyethylene terephthalate multifilaments by controlling the feeding temperature and the discharging temperature of the cooling wind to increase the strength of the yarn, To a method for producing high tenacity polyethylene terephthalate multifilament which can be used as an industrial material such as a tire cord, an industrial rope, a civil reinforcing material, a webbing and a seat belt.
산업용으로 사용되는 폴리에틸렌 섬유의 강도를 높이기 위한 종래 방법으로는 고유점도 1.0 이상의 고점도의 PET 수지를 원사의 강력을 높이기 위하여 연신비를 2배 이상으로 하고, 냉각풍의 온도, 속도, 가열후드의 길이 및 온도를 조절하는 일명 Hot tube의 기술을 사용하는 방법이었다. 상기한 바와 같은 종래의 방법을 이용하여 고점도의 PET 수지를 방사할 경우, 점도 저하의 문제점이 발생하며, 높은 강도의 섬유를 얻기 위해 연신 배율을 높이고, Hot tube의 기술 이용 시 원사의 수축율 증가 및 형태안정성이 떨어진다. 상기한 문제를 극복하기 위한 고탄성 저수축 (High Modulus Low Shrinkage(HMLS)) 공법에서도 강력과 형태안정성(수축율+중신)의 측면에서 강력을 취하면 형태안정성이 떨어지고, 형태안정성을 좋게 하면 강력을 얻지 못하는 문제가 있다.
As a conventional method for increasing the strength of polyethylene fibers used for industrial purposes, a PET resin having an intrinsic viscosity of 1.0 or more and having a high viscosity is used in order to increase the strength of the yarn, and the stretching ratio is set to be not less than 2 times and the temperature and speed of the cooling wind, It was a way to use the hot tube technology to control. When the high viscosity PET resin is spun using the conventional method as described above, there is a problem of lowering the viscosity. In order to obtain a high strength fiber, it is necessary to increase the stretching magnification, to increase the contraction ratio of the yarn when using the hot tube technology, The shape stability is poor. In the high modulus low shrinkage (HMLS) method for overcoming the above problem, when the strength is taken in terms of strength and shape stability (shrinkage ratio + cinnon), shape stability is poor, and when the shape stability is good, There is a problem that can not be done.
본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로, 냉각풍의 공급 온도를 20℃ 이하로, 배출 온도를 60℃ 이하로 유지함으로써 원사 제조 시 적정한 수준의 배향도를 가지는 미연신사를 얻을 수 있으며, 낮은 연신비에서도 원사의 강력 및 형태안정성이 저하되는 것을 방지할 수 있는 고강력 폴리에틸렌 테레프탈레이트 멀티필라멘트의 제조방법을 제공하는 것을 목적으로 한다.
Disclosure of the Invention The present invention has been conceived to solve the above-mentioned problems. It is an object of the present invention to provide an unstretched yarn having an appropriate degree of orientation at the time of yarn production by keeping the supply temperature of the cooling wind at 20 DEG C or lower and the discharge temperature at 60 DEG C or lower. It is another object of the present invention to provide a method for producing a high tenacity polyethylene terephthalate multifilament which can prevent the strength and shape stability of a yarn from being lowered even at a low stretching ratio.
본 발명의 적절한 실시 형태에 따르면, 고유점도가 1.0~1.2인 폴리에틸렌 테레프탈레이트 PET 수지를 방사하여 얻은 폴리에틸렌 테레프탈레이트 멀티 필라멘트의 제조방법에 있어서, 상기 폴리에틸렌 테레프탈레이트 수지를 냉각풍의 공급온도가 20℃ 이하이며, 배출온도는 60℃ 이하로 방사하여 얻은 원사의 치수안정성은 6.0 이하인 것을 특징으로 하는 고강력 폴리에틸렌 테레프탈레이트 멀티필라멘트의 제조방법을 제공한다. According to a preferred embodiment of the present invention, there is provided a method for producing a polyethylene terephthalate multifilament obtained by spinning a polyethylene terephthalate PET resin having an intrinsic viscosity of 1.0 to 1.2, wherein the polyethylene terephthalate resin is mixed with a polyolefin And a dimensional stability of the yarn obtained by spinning at a discharge temperature of 60 DEG C or lower is 6.0 or less. The present invention also provides a method for producing the high tenacity polyethylene terephthalate multifilament.
본 발명의 다른 적절한 실시 형태에 따르면, 상기 방법으로 제조된 딥코드의 강력이용율이 90% 이상인 것이 특징이다.According to another preferred embodiment of the present invention, the dip-cord manufactured by the above method has a strength utilization of 90% or more.
본 발명의 또 다른 적절한 실시 형태에 따르면, 방법으로 제조된 고강력 폴리에틸렌 테레프탈레이트 멀리필라멘트를 포함하는 타이어코드, 산업용 로프, 토목용 보강재, 웨빙용 또는 시트벨트로 구성된 그룹으로부터 선택된 하나의 산업용 제품에 적용되는 것이 특징이다.
According to another preferred embodiment of the present invention, there is provided an industrial product selected from the group consisting of tire cord, industrial rope, earthwork reinforcement, webbing or seat belt comprising high tenacity polyethylene terephthalate far filament produced by the method .
본 발명은 원사의 강력을 높이기 위해 냉각풍의 공급 온도를 20℃ 이하, 배출 온도를 60℃ 이하로 유지하여 원사 제조 시 적정한 수준의 배향도를 가지는 미연신사를 얻을 수 있으며, 낮은 연신비에서도 원사의 강력 및 높은 강력 이용율을 확보할 수 있어 딥코드의 물성 및 공정성이 우수하고, 미연신 배향도 증가에 따른 원사의 강력의 발현을 하는 경우에 발생하는 원사의 수축율 증가 및 딥코드의 강력 저하 문제를 해결할 수 있다는 등의 효과가 있다.
In order to increase the strength of the yarn, the present invention can maintain the supply temperature of the cooling wind at 20 ° C or lower and the discharge temperature at 60 ° C or lower to obtain an undrawn yarn having an appropriate degree of orientation in yarn production. It is possible to secure a high strength utilization ratio and to solve problems of increase in shrinkage ratio of yarn and strength reduction of deep cord which occur when the strength and fairness of dipped cord are excellent and the strength of the yarn is manifested as the degree of non- And so on.
이하, 본 발명에 의한 바람직한 실시예를 참조하면서 상세하게 설명한다. 또한, 본 실시예에서는 본 발명의 권리범위를 한정하는 것은 아니고, 단지 예시로 제시한 것이며, 그 기술적인 요지를 이탈하지 않는 범위 내에서 다양한 변경이 가능하다.Hereinafter, the present invention will be described in detail with reference to preferred embodiments thereof. The present invention is not limited to the scope of the present invention, but is merely an example, and various modifications can be made without departing from the technical spirit of the present invention.
본 발명에 따른 폴리에틸렌 테레프탈레이트 섬유의 제조방법은 고유점도가 1.0~1.2인 폴리에틸렌 테레프탈레이트를 냉각풍 20℃ 이하의 온도에서 방사하고 냉각 후 배출되는 냉각풍의 온도를 60 ℃이하의 조건에서 제조하는 제조방법을 포함한다.A method for producing a polyethylene terephthalate fiber according to the present invention comprises the steps of spinning a polyethylene terephthalate having an intrinsic viscosity of 1.0 to 1.2 at a cooling wind temperature of 20 ° C or lower and producing a cooling wind at a temperature of 60 ° C or lower ≪ / RTI >
이와 같이 제조된 연신 폴리에틸렌 테레프탈레이트 섬유는 원사의 강도는 8.0g/d 이상이며, 93% 이상의 강력이용율을 갖게 된다. 본 발명에 따라 제조된 타이어코드는 30kg이상의 강력을 갖고, 형태안정성 지수도 6.0 이하로 물성과 공정성이 우수하다. 이 때, 형태안정성 지수가 6.0을 초과하면 타이어 코드로 사용하기에는 부적절하다.The drawn polyethylene terephthalate fiber thus produced has a strength of 8.0 g / d or more and a strength utilization of 93% or more. The tire cord manufactured according to the present invention has a strength of 30 kg or more and a shape stability index of 6.0 or less, which is excellent in physical properties and processability. At this time, if the shape stability index exceeds 6.0, it is not suitable for use as a tire cord.
실시예 및 비교예의 물성 평가는 아래와 같이 측정 또는 평가하였다.The physical properties of Examples and Comparative Examples were measured or evaluated as follows.
1) 고유점도(I.V.)1) Intrinsic viscosity (I.V.)
페놀과 1,1,2,2-테트라클로로에탄올 6:4(무게비)로 혼합한 시약(90℃)에 시료 0.1g을 90분간 용해시킨 후 우베로데(Ubbelohde) 점도계에 옮겨 담아 30℃ 항온조에서 10분간 유지시키고, 점도계와 애스피레이터(Aspirator)를 이용하여 용액의 낙하초수를 구한다. 솔벤트의 낙하초수도 상기와 같은 방법으로 구한 아래의 수학식에 의해 R.V. 값 및 I.V. 값을 계산하였다.0.1 g of the sample was dissolved in a reagent (90 ° C) mixed with phenol and 1,1,2,2-tetrachloroethanol 6: 4 (weight ratio) for 90 minutes, transferred to a Ubbelohde viscometer, For 10 minutes, and use a viscometer and an aspirator to determine the number of drops of the solution. The number of drops of the solvent can be calculated by the following formula obtained by the same method as described above. Value and I.V. Values were calculated.
R.V. = 시료의 낙하초수/솔벤트 낙하초수R.V. = Sample falling water / solvent falling water water
I.V. = 1/4 ×(R.V. - 1)/농도 + 3/4 ×(In R.V./농도)
IV = 1/4 x (RV-1) / concentration + 3/4 x (In RV / concentration)
2) 멀티필라멘트의 모듈러스와 강신도 측정방법2) How to measure the modulus and strength of multifilament
원사를 표준상태인 조건, 즉 25℃ 온도와 상대습도 65%인 상태인 항온 항습실에서 24시간 방치 후 ASTM 2256 방법으로 시료를 인장 시험기를 통해 측정한다.
The yarn is left in a standard temperature condition, that is, in a constant temperature and humidity room at a temperature of 25 ° C and a relative humidity of 65% for 24 hours, and then the sample is measured by a tensile tester by ASTM 2256 method.
3) 원사의 중간신도 (E) : JIS-L1017 방법에 따라 인스트롱사의 저속신장형 인장시험기를 이용하여 구한 신장하중곡선에서 하중 4.5g/d에 있어서의 신도를 의미한다.
3) Intermediate elongation of the yarn (E): The elongation at a load of 4.5 g / d in the elongation load curve obtained by using a low-speed elongation tensile tester manufactured by In-Strong Co., Ltd. according to JIS-L1017 method.
4) 건열수축률(%, Shrinkage) 및 치수안정도지수(E-S) 값4) Dry Heat Shrinkage (%, Shrinkage) and Dimensional Stability Index (E-S)
25℃, 65% RH에서 24시간 동안 방치한 후, 0.05g/d의 정하중에서 측정한 길이(L0)와 150℃로 30분간 0.05g/d의 정하중에서 처리한 후의 길이(L1)의 비를 이용하여 건열수축률을 측정하였다. 건축수축률(S)은 아래와 같은 식으로 표시될 수 있다.The ratio of the length (L0) measured at a constant load of 0.05 g / d and the length (L1) after treatment at a constant load of 0.05 g / d for 30 minutes at 150 ° C To measure the dry heat shrinkage ratio. The construction shrinkage ratio S can be expressed by the following equation.
S(%) = [(L0 ― L1)/L0] × 100 S (%) = [(L 0 - L 1 ) / L 0 ] × 100
일정 하중 하에서의 신도를 본 발명에서는 중간신도(E)라 부르며, S는 상기 건열수축률을 의미하는 것으로 중간신도(E) 및 건열수축률(S)의 합을 E-S로 표시하였다.The elongation at a constant load is referred to as an intermediate elongation (E) in the present invention, and S means the dry heat shrinkage ratio, and the sum of the elongation at break (E) and the dry heat shrinkage ratio (S) is expressed as E-S.
E-S = 중간신도(%) + 건열수축률(%)E-S = moderate elongation (%) + dry heat shrinkage (%)
딥코드의 치수안정성은 타이어 측벽 결각화(Side Wall Indentation,SWI) 및 핸들링에 관계되는 물성으로서 주어진 수축율에서의 높은 모듈러스로 정의되고, 서로 다른 열처리과정을 거친 딥코드에 대한 치수안정성의 척도로서 유용하며 낮을수록 더 우수한 치수안정성을 나타낸다.The dimensional stability of a dip cord is defined as a high modulus at a given shrinkage as a property related to tire side wall indentation (SWI) and handling and is useful as a measure of dimensional stability for dip cords subjected to different heat treatments The lower the better the dimensional stability.
5) 복굴절율 5) Birefringence index
복굴절율(△n)은 다음식으로 계산한다. 리타데이션(R)은 편광현미경에 베렉컴펜세이터를 부착하여 시료에 의한 간섭 색도로부터 구한다.The birefringence index? N is calculated by the following equation. The retardation (R) is determined from the interference chromaticity of the sample by attaching a macromolecular pens to the polarizing microscope.
△n = R/d Δn = R / d
여기서, d : 시료의 두께(㎜)
Where d: thickness of the sample (mm)
(실시예 1)(Example 1)
테레프탈레이트 단위를 90 mol% 이상 함유하고, 페놀/테트라클로로에탄으로 측정한 고유점도가 1.0dl/g인 폴리에틸렌 테레프탈레이트 중합물을 100㎜의 가열구역(분위기 온도 320℃) 및 길이 500㎜의 냉각구역에서 냉각풍 공급 온도를 20℃로, 냉각 후 배출되는 냉각풍의 온도를 59℃로 통과시켜 고화시킨 다음 방사 유제로 오일링 하였다. 이 미연신사 혹은 UDY를 2,900m/분의 방사속도로 권취하고, 1단계 연신은 60℃에서 1.6배로, 제2단계 연신은 60℃에서 1.2배로, 제3단계 연신은 75℃에서 1.3배로 수행하고 230℃에서 열고정하며, 3% 이완시킨 다음 권취하여 2000데니어의 최종 연신사(원사)를 제조하였다.
A polyethylene terephthalate polymer having a terephthalate unit content of 90 mol% or more and an intrinsic viscosity of 1.0 dl / g as measured by phenol / tetrachloroethane was placed in a heating zone of 100 mm (atmospheric temperature 320 ° C) , The temperature of the cooling wind was 20 ° C, the temperature of the cooling wind discharged after cooling was 59 ° C, and then solidified, followed by oiling with a spinning oil. The unstretched yarn or UDY was wound at a spinning speed of 2,900 m / min. The one-stage stretching was performed at a temperature of 60 ° C at 1.6 times, the second-stage stretching at a temperature of 60 ° C was performed at 1.2 times, and the third- The sheet was heat-set at 230 DEG C, relaxed by 3% and then wound to produce a final drawn yarn (yarn) of 2000 denier.
(실시예 2 및 비교예 1 내지 2)(Example 2 and Comparative Examples 1 and 2)
방사조건에서 냉각공기 압력(B/L) 및 냉각풍 공급 및 배출 온도를 하기 표 1에 나타낸 바와 같이 변화시키면서 상기 실시예1과 동일한 방법으로 실험을 수행하여 연신사 및 딥코드를 제조하였다.The experiment was carried out in the same manner as in Example 1 while changing the cooling air pressure (B / L) and the cooling air supply and discharge temperature at the spinning conditions as shown in the following Table 1 to prepare a drawn yarn and a dipped cord.
이와 같이 제조된 연신사 및 딥코드의 물성을 평가하여 하기 표 2에 나타내었다.The properties of the thus-prepared drawn yarn and dipped cord were evaluated and are shown in Table 2 below.
CordBottom
Cord
위에서 본 발명은 실시예를 이용하여 상세하게 설명되었지만, 제시된 실시예는 예시적인 것으로서 본 발명의 범위는 위와 같은 실시예에 대한 변형 및 수정 발명에 의하여 제한되지 않는다는 것은 당업자에게 자명할 것이다. 본 발명의 범위는 아래의 청구범위에 의해서만 제한된다.Although the present invention has been described in detail with reference to the embodiments thereof, it is to be understood by those skilled in the art that the disclosed embodiments are illustrative and that the scope of the present invention is not limited by the modification and the modification of the embodiments. The scope of the present invention is limited only by the following claims.
Claims (3)
상기 폴리에틸렌 테레프탈레이트 수지를 냉각풍의 공급온도가 20℃ 이하에서 방사하고, 냉각한 후 배출되는 냉각풍의 온도를 60℃ 이하로 하여 제조되며,
하중 9.0㎏에서의 중간신도와 건열수축률(150℃×30분, 0.05g/d의 정하중)의 합인 치수안정성이 6.0 이하인 것을 특징으로 하는 고강력 폴리에틸렌 테레프탈레이트 멀티필라멘트의 제조방법.
A method for producing a polyethylene terephthalate multifilament obtained by spinning a polyethylene terephthalate PET resin having an intrinsic viscosity of 1.0 to 1.2 dl / g,
The polyethylene terephthalate resin is prepared by spinning at a feed temperature of the cooling wind of 20 DEG C or lower and setting the temperature of the cooling wind which is discharged after cooling to 60 DEG C or lower,
And a dimensional stability of 6.0 or less, which is the sum of the elongation at break under a load of 9.0 kg and the dry heat shrinkage ratio (150 DEG C x 30 minutes, static load of 0.05 g / d).
A high tenacity polyethylene having a strength utilization ratio (strength of a deep cord / (strength of a yarn) x 2) x 100) of a deep cord comprising a high tenacity polyethylene terephthalate multifilament manufactured by the method of claim 1 is 90% Terephthalate multifilament dip cord.
An industrial product selected from the group consisting of tire cord, industrial rope, civil engineering reinforcement, webbing or seat belt comprising high tenacity polyethylene terephthalate multifilament prepared by the method of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130001040A KR101427832B1 (en) | 2013-01-04 | 2013-01-04 | Process for preparing high tenacity polyethylene terephthalate multifilament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130001040A KR101427832B1 (en) | 2013-01-04 | 2013-01-04 | Process for preparing high tenacity polyethylene terephthalate multifilament |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20140089156A KR20140089156A (en) | 2014-07-14 |
| KR101427832B1 true KR101427832B1 (en) | 2014-08-08 |
Family
ID=51737423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020130001040A KR101427832B1 (en) | 2013-01-04 | 2013-01-04 | Process for preparing high tenacity polyethylene terephthalate multifilament |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101427832B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180079487A (en) | 2016-12-30 | 2018-07-11 | 주식회사 효성 | Yarn for polyester with excellent shape stability |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100235758B1 (en) | 1991-01-21 | 2000-01-15 | 크리스 로저 에이치 | High modulous polyester yarn for tire cord and composites and the manufacture method |
| KR100650886B1 (en) | 2005-12-30 | 2006-11-28 | 주식회사 효성 | Industrial polyester fiber with super high tenacity and its manufacturing method |
| KR20110002663A (en) * | 2009-07-02 | 2011-01-10 | 주식회사 효성 | Polyethyleneterephthalate multi-filament for industrial use |
| KR20120069339A (en) * | 2010-12-20 | 2012-06-28 | 주식회사 효성 | Polyester multifilament having an excellent dimensional stability |
-
2013
- 2013-01-04 KR KR1020130001040A patent/KR101427832B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100235758B1 (en) | 1991-01-21 | 2000-01-15 | 크리스 로저 에이치 | High modulous polyester yarn for tire cord and composites and the manufacture method |
| KR100650886B1 (en) | 2005-12-30 | 2006-11-28 | 주식회사 효성 | Industrial polyester fiber with super high tenacity and its manufacturing method |
| KR20110002663A (en) * | 2009-07-02 | 2011-01-10 | 주식회사 효성 | Polyethyleneterephthalate multi-filament for industrial use |
| KR20120069339A (en) * | 2010-12-20 | 2012-06-28 | 주식회사 효성 | Polyester multifilament having an excellent dimensional stability |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180079487A (en) | 2016-12-30 | 2018-07-11 | 주식회사 효성 | Yarn for polyester with excellent shape stability |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140089156A (en) | 2014-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100810865B1 (en) | Method of Preparing Polyketone Fibers and the Polyketone Fibers Prepared by the Method | |
| KR20090072439A (en) | Method for preparing polyketone fibers and the polyketone fibers prepared by the method | |
| KR101838499B1 (en) | Process for preparing polyethylene terephthalate filament having excellent high strength and dimensional stability | |
| KR100954873B1 (en) | High-strength Polyethyleneterephthalate fiber and its manufacturing method | |
| KR101384671B1 (en) | method of manufacturing polyester tire cord with high modulus-low shrinkage and polyester tire cord manufactured by the same method | |
| CN1327049C (en) | Production process of industrial polyester multifilament tow | |
| KR101429686B1 (en) | Process for preparing high viscosity and high intensity industrial polyester fibre | |
| KR101427832B1 (en) | Process for preparing high tenacity polyethylene terephthalate multifilament | |
| JPH0246689B2 (en) | ||
| KR101979352B1 (en) | Process for preparing polyethylene terephthalate filament having excellent high strength and strength ratio | |
| KR100607086B1 (en) | Polyketone fiber | |
| KR101928859B1 (en) | Manufacturing Method of Polyethylene terephthalate Fiber having high strength for tire cord | |
| KR101427819B1 (en) | Process for preparing polyester fiber having excellent dimensional stability for tire cord | |
| KR101394653B1 (en) | Aromatic polyamide multi filament having high-strength and process for preparing the same | |
| KR20110009365A (en) | Process for preparing polyketon fiber | |
| KR20070031063A (en) | Polyketone dip cord | |
| KR20120064933A (en) | Method for preparing polyketone fibers | |
| KR100949602B1 (en) | Process for producing Polyketone Fibers | |
| KR101384670B1 (en) | Method of manufacturing yarn for high strength tire cord with polyethyleneterephthalate, method of manufacturing tire cord thereof and high strength polyethyleneterephthalate tire cord manufactured by the same method | |
| KR100585248B1 (en) | Rubber-reinforcing polyester fibers and dip cords | |
| KR101551421B1 (en) | Process for preparing polyester multifilament for tire cord | |
| KR101143721B1 (en) | High Gravity Polyester Multi-filament and Its manufacturing Method | |
| KR101746029B1 (en) | Process for preparing polyethylene terephthalate filament having excellent high strength and dimensional stability | |
| KR20080061155A (en) | Polyethyleneterephthalate yarn with good thermal performance and high tenacity for industrial use | |
| KR101664933B1 (en) | Process for preparing high modulus polyester multifilament having an excellent dimensional satability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20170712 Year of fee payment: 4 |
|
| FPAY | Annual fee payment |
Payment date: 20190711 Year of fee payment: 6 |