KR950000725B1 - Ultra high speed spinning process for preparation of polyester fiber - Google Patents
Ultra high speed spinning process for preparation of polyester fiber Download PDFInfo
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- KR950000725B1 KR950000725B1 KR1019920022979A KR920022979A KR950000725B1 KR 950000725 B1 KR950000725 B1 KR 950000725B1 KR 1019920022979 A KR1019920022979 A KR 1019920022979A KR 920022979 A KR920022979 A KR 920022979A KR 950000725 B1 KR950000725 B1 KR 950000725B1
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- heating tube
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- inner diameter
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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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
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- Physics & Mathematics (AREA)
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- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
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Abstract
Description
제 1 도는 본 발명의 공정개략도.1 is a process schematic diagram of the present invention.
제 2 도는 본 발명에 사용되는 사조집속가이드의 평면사용상태도.2 is a plan view of the yarn focusing guide used in the present invention.
제 3 도는 본 발명에 사용되는 조리개형 공기조절구의 평면사용상태도.3 is a planar use state of the aperture type air conditioner used in the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 방사구금 2 : 켄칭챔버1: spinneret 2: quenching chamber
3 : 사조집속가이드 4,4' : 조리개형 공기조절구3: Thread focusing guide 4,4 ': Aperture type air conditioner
5 : 가열통 6 : 유제급유장치5: heating tank 6: emulsion oil supply device
7 : 제 1 인취롤러 8 : 제 2 인취롤러7: First Take Up Roller 8: Second Take Up Roller
9 : 권취롤러9: winding roller
본 발명은 폴리에스테르섬유의 초고속방사방법에 관한 것으로서 사질이 우수한 폴리에스테르섬유를 안정한 방사조업성으로 제조할 수 있도록 한 것이다.The present invention relates to an ultra-fast spinning method of the polyester fiber to be able to produce a polyester fiber with excellent yarn quality in a stable spinning operation.
더욱 구체적으로 설명하면, 본 발명은 용융방사된 폴리에스테르섬유를 냉각, 접속시킨 다음에 가열통에 통과시켜 유리전이온도이상으로 가열시키고 5,000미터/분이상의 권취속도로 권취하는 종래의 폴리에스테르섬유의 초고속 방사방법을 개량한 것이다.More specifically, the present invention relates to a conventional polyester fiber that is cooled and connected to a melt-spun polyester fiber and then passed through a heating tube to be heated above the glass transition temperature and wound at a winding speed of 5,000 meters / minute or more. It is an improvement of the ultra-fast spinning method.
가열통을 이용하는 종래의 방법은 가열통의 외부에서 형성된 고기가 가열통내부로 유입되어 가열통내부의 열전달효율을 떨어뜨리고 가열통내부에서 사조의 흔들림을 일으켜서 필라멘트들간에 열전단이 균일하게 되는 것을 방해하였다.The conventional method using the heating tube is that the meat formed from the outside of the heating tube flows into the inside of the heating tube to reduce the heat transfer efficiency inside the heating tube, causing shaking of yarn inside the heating tube, so that the thermal shear between the filaments is uniform. Disturbed.
또 가열통내에서의 사조의 흔들림은 모우와 절사의 원인이 되기도 하고 염색시 염반의 원인이 되기 하였다.In addition, the shaking of the yarn in the heating tube caused both cattle and mortality and dyed rice during dyeing.
본 발명은 이러한 사의 흔들림을 방지하기 위하여 제 1 도 및 제 3 도에 도시한 바와같이 가열통의 입,출구에 카메라의 조리개와 같은 구조를 가진 공기조절구를 설치하여 외부공기의 영향을 최소화시킨 것을 특징으로 한다. 본 발명의 또 다른 특징은 사조집속가이드의 내경과 가열통의 내경간의 관계를 일정한 조건이 만족되도록 함으로서 사의 물성과 방사조업성을 향상시킨 점에 있다.The present invention is to minimize the influence of the outside air by installing an air control device having a structure such as the aperture of the camera at the inlet and outlet of the heating tube as shown in Figures 1 and 3 to prevent the shaking of the yarn It is characterized by. Another feature of the present invention is to improve the physical properties and spinning operation properties of the yarn by ensuring that a certain condition is satisfied between the inner diameter of the thread guide focusing guide and the inner diameter of the heating tube.
이하 본 발명을 예시도면에 의하여 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail by way of example.
제 1 도는 본 발명의 공정개략도로서, 용융방사된 폴리에스테르섬유(Y)는 켄칭챔버(2)에서 냉각된 다음에 사조집속가이드(3)에서 집속되고, 조리개형 공기조절구(4)(4')가 각각 그 상, 하부에 설치되어 있는 가열통(5)을 통과하면서 유리전이온도(Tg)이상으로 가열되며, 제1인취롤러(7)와 제2인취롤러(8)를 거쳐서 권취롤러(9)에서 5,000미터/분이상의 권취속도로 권취된다.1 is a process schematic diagram of the present invention, wherein the melt-spun polyester fiber (Y) is cooled in the quenching chamber (2) and then focused in the thread focusing guide (3), and the aperture type air conditioner (4) (4). ') Is heated above the glass transition temperature (Tg) while passing through the heating vessel (5) installed on the upper and lower portions thereof, and the winding roller through the first take-up roller (7) and the second take-up roller (8) At (9) it is wound at a winding speed of more than 5,000 meters / minute.
본 발명에서 가열통(5)의 내경(R2)은 10mm∼30mm로 하는 것이 좋다. 만약 가열통(5)의 내경이 10mm미만이면 통과하는 사조(Y)가 가열통(5)내부에 닿아서 방사작업성이 매우 불안정하여지고 권취가 거의 불가능하였으며, 30mm를 초과하는 경우에는 가열통(5)내부의 공간이 너무 넓어서 조리개형 공기조절구(4)(4')로 외부의 공기를 효과적으로 차단할 수 없을 뿐만 아니라 사조(Y)와 가열통(5)내벽간의 거리가 너무 멀어서 열전달효율면에서 바람직하지 못하다.In the present invention, the inner diameter R 2 of the heating cylinder 5 is preferably 10 mm to 30 mm. If the inner diameter of the heating tube 5 is less than 10 mm, the thread thread Y passing through the inner surface of the heating tube 5 becomes very unstable and the coiling is almost impossible, and if it exceeds 30 mm, the heating tube (5) The space inside is too wide to effectively block the outside air with the aperture type air conditioner (4) (4 '), and the distance between the thread (Y) and the heating tube (5) is too far, so the heat transfer efficiency Not preferred in terms of
또 본 발명에 사용되는 사조집속가이드(3)는 제 2 도에 도시된 바와같으며 다음 조건을 만족하도록 되어 있다.The yarn focusing guide 3 used in the present invention is as shown in FIG. 2 and is designed to satisfy the following conditions.
다음next
단, R1은 사조집속가이드의 내경, R2는 가열통의 내경Where R 1 is the internal diameter of the thread focusing guide and R 2 is the internal diameter of the heating tube.
만약, R2/R1이 2보다 적을 경우에는 모우발생이 많고 복굴절율과 단사간파단강력변동율이 커지는 문제점이 발생하고, R2/R1이 3보다 클 경우에는 사의 신도가 과대해질 뿐 아니라 모우가 많이 발생하게 된다.If R 2 / R 1 is less than 2, there is a lot of rain occurrence and birefringence and single-strength breakage variability increases.If R 2 / R 1 is greater than 3, the elongation of the yarn is not only excessive. A lot of mourning occurs.
본 발명은 상술한 바와같이 가열통(5)의 내경이 10mm∼30mm인 것을 사용하되, 상기 조건을 만족시키는 사조집속가이드(3)를 사용하고 동시에 조리개형 공기조절구 (4)(4')로 외부공기의 가열통(5)에로의 유입을 최소한으로 억제하면서 제조하기 때문에 강도 4.5g/d이상, 신도 30∼40%, 비등수수축율 7∼10% 그리고 사균제도가 0.3∼0.6% 전도인 물성을 가지는 폴리에스테르섬유를 모우를 발생시킴이 없이 안정한 조업성으로 5,000미터/분이상의 권취속도로 제조할 수 있는 장점이 있다.The present invention uses the inner diameter of the heating tube (5) as described above, 10mm ~ 30mm, using the threading focusing guide (3) that satisfies the above conditions and at the same time aperture type air conditioner (4) (4 ') Because it is manufactured with the minimum inflow of external air into the heating tube (5), it has a strength of 4.5g / d or more, elongation 30-40%, boiling shrinkage 7-10%, and bactericidal agent 0.3-0.6%. There is an advantage that can be produced at a winding speed of 5,000 meters / min or more with a stable operation without generating a polyester fiber having a.
본 발명에서 언급한 단사간파단경력변동율은 다음 식으로 계산한 것이다.The monoclinic breakage variation rate mentioned in the present invention is calculated by the following equation.
단사간파단강력변동율= Singleton break strength variation rate =
(위 식에서 각 단사의 파단강력의 분산은 멀티필라멘트사를 구성하고 있는 각각의 단사들을 잡아당겨서 끊어질때의 힘들의 분산을 말함.)(In the above equation, the dispersion of breaking strength of each single yarn refers to the dispersion of forces when the single yarns constituting the multifilament yarn are pulled out and broken.)
[실시예 1∼2, 비교예 1∼2]EXAMPLES 1-2, COMPARATIVE EXAMPLES 1-2
고유점도가 0.645인 폴리에틸렌테레프탈레이트를 제 1 도에 표시한 바와같은 모세공의 수가 36개이고 모세공지름이 0.2mm인 방사구금을 통하여 섬유의 섬도가 75데니어/36필라멘트가 되게끔 토출량을 조절하여 295℃에서 용융압출시킨 후 유속 0.4m/초의 냉각공기류를 1500mm의 길이로 방출사조(Y)에 불어주어 80℃이하로 고화시켰다.Polyethylene terephthalate having an intrinsic viscosity of 0.645, as shown in FIG. 1, was discharged by adjusting the number of capillaries to 36 deniers and 36 filaments through a spinneret having a capillary diameter of 0.2 mm. After melt extrusion at 295 ° C., a cooling air stream having a flow rate of 0.4 m / sec was blown to the discharge thread Y at a length of 1500 mm to solidify below 80 ° C.
고화점아래 10cm 지점의 사조접속가이드(3)에서 사조(Y)가 접속된 후 다시 그 아래 10cm 지점에 있는 조리개형 공기조절구(4)(4')를 거쳐서 같이 1.2m의 가열통(5)을 통과시켰다. 이어서 유제급유장치(6)를 지나 제1인취롤러(7)와 제2인취롤러(8)을 거쳐 권취하였다.After the thread (Y) is connected from the thread connection guide (3) at the 10 cm point below the freezing point, a heating tube (1.2 m) is passed through the diaphragm-type air conditioner (4) (4 ') at the point of 10 cm below. ). Subsequently, it was wound up after passing through the emulsion lubrication device 6 through the first take-up roller 7 and the second take-up roller 8.
여기서 본 발명의 조리개형 공기조절구의 효과를 평가하기 위하여 가열통(5)의 온도를 180℃로 하고 가열통(5)의 내경(R2)과 사조집속가이드(3)의 내경(R1)을 각각 15mm와 5mm, 20mm와 10mm로 했을 경우 그리고 공기 조절구(4)를 설치한 경우와 설치하지 않은 경우를 비교한 결롸를 표 1에 나타내었다.The inner diameter of the heating tube to a temperature of 5 to 180 ℃ heated tube (5) inside diameter (R 2) and the yarn bundling guide 3 in order to evaluate the diaphragm type air conditioning-sphere effect of the present invention (R 1) Table 1 shows the results of comparing 15mm and 5mm, 20mm and 10mm, and the case where the air conditioner (4) is installed or not.
표1에서 보는 바와같이 본 발명에 속하는 실시예 1과 2의 경우가 단사간파단강력변동율이 낮고 복굴절율을(n)의 값도 높다.As shown in Table 1, Examples 1 and 2 belonging to the present invention have a low intermittent fracture stiffness variation and have a birefringence ( The value of n) is also high.
또한 복굴절율을 보면 배향도면에서는 차이가 없는 듯 하나 모우면에서 보면 본 발명에 의한 실시예 1 및 실시예 2가 본 발명에 의하지 않는 비교예 1 및 2보다 우수함을 알 수 있다.In addition, the birefringence rate does not seem to differ in the orientation drawings, but it can be seen from Examples that Example 1 and Example 2 according to the present invention are superior to Comparative Examples 1 and 2 not according to the present invention.
표1에서 모우는 토레이사제 프레이카운터(Fray-Counter)로 2000m를 해사하였을대의 모우감지갯수이다.The number of mourning in Table 1 is the number of mourning feelings when 2000 meters were dismissed by a Fray-Counter manufactured by Toray Corporation.
[표 1]TABLE 1
[실시예 3∼6, 비교예 3∼11][Examples 3 to 6 and Comparative Examples 3 to 11]
실시예 1과 똑같은 조건에서 조리개형 공기조절구(4)를 가열통(5)입구에 설치하고 가열통상부의 공기조절구 내경과 가열통(5)의 내경(R2)을 여러 가지로 바꿔가면서 실험하였다.Under the same conditions as in Example 1, the diaphragm-type air regulator 4 was installed at the inlet of the heating tube 5, and the inside diameter of the air regulator and the inner diameter R 2 of the heating tube 5 were changed in various ways. Experiment.
가열통(5)의 온도는 가열통(5)의 내경(R2)이 커질수록 점차 증가시켜 사조(Y)가 받는 열이 각 실험조건마다 균일할 수 있도록 하였다.The temperature of the heating vessel (5) was gradually increased as the inner diameter (R 2 ) of the heating vessel (5) was increased so that the heat received by yarn (Y) was uniform for each experimental condition.
그 결과는 표2와 같다.The results are shown in Table 2.
[표 2]TABLE 2
표2로 알 수 있는 바와같이 본 발명의 범위에 속하는 실시예 3∼6에서는 단사간파단강력변동율이 낮고 비등수수축율이 8∼12%, 모우면에서도 우수한 섬유를 얻을 수 있었지만 사조(Y)가 가열통(5)내벽에서 멀리 떨어진 경우, 즉 R2/R1〉3이거나 가열통(5) 내경이 30mm를 초과하는 비교예 7,8,9,10,11을 보면 신도가 다소 높고 단사간파단강력변동율도 높으며 모우가 다소 발생됨을 알 수 있다.As can be seen from Table 2, in Examples 3 to 6, which fall within the scope of the present invention, the fiber with low single yarn breakage variability was low, the boiling shrinkage was 8-12%, and the fiber was excellent even when woolen. If the distance from the inner wall of the heating tube (5), that is, R2 / R1> 3, or Comparative Examples 7,8, 9, 10, 11 whose inner diameter of the heating tube (5) exceeds 30 mm, the elongation at break is rather high and the short-span fracture strength is high. The rate of change is also high, and it can be seen that there is some occurrence of rain.
한편 사조(Y)가 가열통(5)내벽에 너무 가까운 경우, 즉R2/R1〈2인 경우를 보면 비교예 4,6,8에서 보는 바와같이 모우발생이 많고 복굴절율은 다소 높으며 단사간파장력변동율 또한 다소 높음을 알 수 있다.On the other hand, when thread thread (Y) is too close to the inner wall of heating tube (5), that is, when R 2 / R 1 <2, as shown in Comparative Examples 4, 6, and 8, there are many occurrences of rain and the birefringence is rather high Hepatic wave variation was also somewhat high.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920022979A KR950000725B1 (en) | 1992-12-01 | 1992-12-01 | Ultra high speed spinning process for preparation of polyester fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920022979A KR950000725B1 (en) | 1992-12-01 | 1992-12-01 | Ultra high speed spinning process for preparation of polyester fiber |
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| KR940014954A KR940014954A (en) | 1994-07-19 |
| KR950000725B1 true KR950000725B1 (en) | 1995-01-28 |
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