KR850001235B1 - A process for producing high shrinkage pet yarn - Google Patents
A process for producing high shrinkage pet yarn Download PDFInfo
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- KR850001235B1 KR850001235B1 KR1019830005990A KR830005990A KR850001235B1 KR 850001235 B1 KR850001235 B1 KR 850001235B1 KR 1019830005990 A KR1019830005990 A KR 1019830005990A KR 830005990 A KR830005990 A KR 830005990A KR 850001235 B1 KR850001235 B1 KR 850001235B1
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- yarn
- organic solvent
- polyester
- aqueous solution
- shrinkage
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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
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
본 발명은 고 수축성 폴리에스테르사의 제조방법에 관한 것이다.The present invention relates to a method for producing a high shrinkage polyester yarn.
보다 상세히 말하면, 본 발명은 폴리에스테르 미연신사를 연신공정 중에 유기용제의 수용액을 사에 공급하면서 연신하므로써 우수한 고 수축성 폴리에스테르사를 제조하는 방법이다.More specifically, the present invention is a method for producing an excellent high shrinkage polyester yarn by stretching the polyester non-stretched yarn while supplying an aqueous solution of an organic solvent to the yarn during the stretching step.
고수축성 폴리에스테르사를 제조하는 방법으로서는 중합물을 개질시키는 방법(예를들면, 미합중국 특허 제3,927,167호등)이나 방사 또는 연신 단계에서 제사조건 등을 변경시켜서 적용하는 방법, 예를들면, 방사된 사조의 집속위치의 변경(일본 공개 특허 제81-140114호), 연신시 열판온도를 낮추고 온수욕 중에서 연신하는 방법(일본 특허 제69-18933호 또는 일본 특허 제81-27608호등)등이 사용되어 왔으나, 중합물을 개질시키는 경우에는 타물성의 변화가 심할뿐 아니라 개질설계에 어려움이 있으며 방사 또는 연신 공정에서의 조건변경, 특히 온수욕 중에서의 연신법이 잘 알려져 있으나 부착설비가 복잡하고 공정관리가 어려워 실용화 하기에는 곤란한 점이 많고 고 수축율의 발현에도 한계가 있었다.As a method for producing a highly shrinkable polyester yarn, a method of modifying a polymer (for example, U.S. Patent No. 3,927,167, etc.) or a method of applying the yarn by changing yarn conditions in a spinning or stretching step, for example, Changing the focusing position (Japanese Patent Publication No. 81-140114), a method of lowering the hot plate temperature at the time of stretching and stretching in a hot water bath (Japanese Patent No. 69-18933 or Japanese Patent No. 81-27608, etc.) has been used. In the case of reforming the material, the change of other properties is not only severe but also difficult to design the reforming. The condition change in the spinning or stretching process, especially the stretching method in a hot water bath is well known, but the attachment facilities are complicated and the process management is difficult for practical use. There were many points and there was a limit to the expression of high shrinkage rate.
본 발명은 이러한 문제점을 해결하여 사의 기본물성 저하가 거의 없으며 균제도가 양호하고 비수 수축율을 임의로 조절할 수 있는 고수축성 폴리에스테르사를 제조하는 것으로 발명의 구성을 상세히 설명하면 다음과 같다.The present invention solves this problem, there is almost no degradation of the basic physical properties of the yarn, and the uniformity is good and to produce a highly shrinkable polyester yarn that can arbitrarily control the non-shrinkage rate will be described in detail the configuration of the invention as follows.
중합물 구조단위의 약 85%이상이 폴리에틸렌 테레프탈레이트로 구성되는 선형 폴리에스테르 중합물을 공지된 방법으로 방사하여 미연신사를 제조하고, 이 미연신사를 2.5내지 3.5의 연신비로 연신비로 연신하고 공정에 있어서 디메틸포름 아마이드, 벤질알콜 또는 디옥산등 폴리에스테르에 대해 팽윤작용이 있는 유기용제중 1종을 0내지 5중량%, 더욱 좋기로는 0내지 3중량% 함유하는 수용액을 제트노즐에 의한 분사 방식으로 연신되는 사에 사중량의 15내지 40%부여하면서 열판(Heater plate)온도를 130내지 65℃로 조절하여 비수 수축율을 임의로 조절할 수 있도록 한 고수축성 폴리에스터사 제조방법에 관한 것이다.At least 85% of the polymer structural units are spun by a known method to produce a linear polyester polymer composed of polyethylene terephthalate, to prepare an unstretched yarn. Stretching an aqueous solution containing 0 to 5% by weight, more preferably 0 to 3% by weight, of one of the organic solvents having swelling action with respect to polyesters such as formamide, benzyl alcohol or dioxane, by spraying with a jet nozzle The present invention relates to a method for producing a highly shrinkable polyester yarn, in which a non-aqueous shrinkage rate is arbitrarily controlled by adjusting a heat plate temperature to 130 to 65 ° C while giving 15 to 40% of the dead weight to the yarn.
본 발명에서 사용하는 제트노즐은 방사유제의 공급에 일반적으로 쓰이는 노즐가이드 또는 그와 유사한 제트노즐로서 주행사에 균일하게 액체를 부여할 수 있는 것이면 충분하다.The jet nozzle used in the present invention is a nozzle guide or similar jet nozzle generally used for supplying spinning oil, and it is sufficient that the jet nozzle can be uniformly supplied with liquid.
본 발명에서 사용하는 수용액중의 유기용제의 함량이 5중량%를 초과하는 경우 사표면 손상 및 강도저하의 문제가 있으며, 열판(Heater plate)의 온도가 65℃이하이면 수분의 건조가 불충분하여 권취작업이 곤란하고 수축율도 더 이상 증가되지 않는다. 반면에 130℃이상이면 비수 수축율이 일반 폴리에스테르사와 유사한 수준에 이르기 때문에 고수축사 제조가 어렵다.When the content of the organic solvent in the aqueous solution used in the present invention exceeds 5% by weight, there is a problem of dead surface damage and decrease in strength, and when the temperature of the heat plate is less than 65 ° C, the drying of moisture is insufficient and the winding is performed. The work is difficult and the shrinkage rate no longer increases. On the other hand, it is difficult to manufacture high shrink yarns because the non-aqueous shrinkage ratio is at a level similar to that of general polyester at 130 ° C. or higher.
본 발명에 따른 제트노즐 분사 방식에 의한 수용액의 공급에 있어서 주행사에 부여되는 수용액의 부착량은 정량 토출되는 기어펌프의 회전수에 의해서 조절되며 사중량에 대한 부착량이 15%이하일 때는 수축율 향상효과가 작고, 반대로 40%이상일 때는 사주행중 수분의 건조가 불충분하여 유제의 이탈이 발생할 수 있다.In the supply of the aqueous solution by the jet nozzle injection method according to the present invention, the adhesion amount of the aqueous solution applied to the traveling yarn is controlled by the rotation speed of the gear pump discharged quantitatively, and when the adhesion amount to the dead weight is 15% or less, the effect of improving the shrinkage rate is achieved. On the contrary, when it is more than 40%, the drying of the emulsion may be insufficient due to insufficient drying of water during four driving.
본 발명에 있어서 수축율의 조절은 열판온도에 의하여 좌우되나, 수용액의 공급없이 열판온도만 변경시켜 연신할 경우보다 열판 온도의 변경에 따른 수축율이 훨씬 크며, 본 발명에 따라 제조된 사는 비수 수축율 8%내지 50%범위에서 조절될 수 있다.In the present invention, the control of the shrinkage rate is dependent on the hotplate temperature, but the shrinkage rate is much greater than the hotplate temperature when the hotplate temperature is stretched without supplying an aqueous solution. To 50%.
본 발명에 따른 제조방법은 방사조건에 관계없이 일반적인 의료용(衣料用)폴리에스테르 미연신사에 대해서 적용이 가능하면 소요설비의 구입 및 부착이 간편하여 손쉽게 실용화할 수 있다. 또한 이렇게 하여 제조된 고 수축성 폴리에스테르사는 기본물성의 저하가 거의 없고, 더우기 사의 균제도가 매우 양호하며, 비수 수축율을 8내지 50%범위에서 임의로 조절할 수 있기 때문에 이수축 혼섬사의 제조나, 고밀도 직물의 제조등 의료용(衣料用) 폴리에스테르사의 특수용도 개발에 다양하게 이용될 수 있다.If the manufacturing method according to the present invention can be applied to general non-drawn polyester for medical use regardless of the spinning conditions, it is easy to purchase and attach necessary equipment and can be easily put to practical use. In addition, the highly shrinkable polyester yarns produced in this way have almost no deterioration in basic physical properties, moreover, the homogeneity of the yarns is very good, and the non-aqueous shrinkage ratio can be arbitrarily controlled in the range of 8 to 50%, so that the production of biaxially blended yarns or high density fabrics It can be variously used for the development of special purpose of medical polyester such as manufacturing.
[실시예 1]Example 1
방사속도 1500m/min로 방사된 148데니어/24필라멘트의 폴리에스테르 미연신사를 사용하고 본 발명의 제트노즐 분사방식에 의한 연신법에 따라 다음의 연신조건으로 폴리에스테르 연신사를 제조한 결고, 사의 열수축율 및 기본물성은 표 -1과 같았다. 본 발명에서 말하는 열수축율은 비수 수축율 및 건열 수축율로 나타내었으며, 측정 방법은 한국공업규격(KS) K-0215호에 따르고 건열 수축율은 190℃에서 측정한 값이다.Using the undrawn polyester of 148 denier / 24 filament spun at a spinning speed of 1500 m / min and the polyester drawn yarn was prepared under the following drawing conditions according to the drawing method by the jet nozzle injection method of the present invention Shrinkage and basic physical properties were as shown in Table-1. Heat shrinkage in the present invention is represented by the non-shrinkage rate and dry heat shrinkage rate, the measuring method is in accordance with Korean Industrial Standard (KS) K-0215 and the dry heat shrinkage is the value measured at 190 ℃.
연 신 조 건Extension condition
*DMT-디메틸포름아마이드* DMT-dimethylformamide
[표-1]Table-1
(실시예 1)(Example 1)
[비교 실시예 1]Comparative Example 1
실시예 1과 동일한 비연신사를 사용하고 제트노즐 분사방식에 의한 수용액 공급을 제외하고는 모든 연신조건을 실시예 1과 동일하게 하여 폴리에스터 연신사를 제조한 결과, 표 -2의 열수축율 및 기본물성을 나타내었다.As a result of using the same non-drawn yarn as in Example 1 and producing all the stretching conditions in the same manner as in Example 1 except for supplying an aqueous solution by jet nozzle injection method, the heat shrinkage ratio and basic value of Table -2 were as follows. Physical properties were shown.
[표-2]TABLE 2
(비교 실시예 1)(Comparative Example 1)
[실시예 2내지 3][Examples 2 to 3]
공급 수용액으로서 벤질알콜 및 디옥산 각각 2중량% 수용액을 사용한 것을 제외하고는 실시예 1과 동일한 조건으로 연신하여 표-3의 열수축율 및 기본물성을 갖는 폴리에스테르 연신사를 얻었다.Stretching was carried out under the same conditions as in Example 1, except that 2% by weight of aqueous solution of benzyl alcohol and dioxane were used as the supply aqueous solution, thereby obtaining a polyester drawn yarn having thermal shrinkage and basic properties shown in Table-3.
[표-3]Table-3
(실시예 2내지 3)(Examples 2 to 3)
[실시예 4내지 6]EXAMPLES 4-6
실시에 1과 동일한 조건으로 공급 수용액으로서 디메틸포름아마이드 수용액을 사용하고 그 농도를 각각 0중량%, 3중량%및 5중량%로 하여 연신사를 제조했을때 표-4와 같은 결과를 얻었다.In the same conditions as in Example 1, when a dimethylformamide aqueous solution was used as the aqueous solution and the concentrations were 0 wt%, 3 wt% and 5 wt%, respectively, a stretched yarn was obtained.
[표-4]Table-4
(실시예 4내 6)(Example 4 to 6)
Claims (6)
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KR1019830005990A KR850001235B1 (en) | 1983-12-19 | 1983-12-19 | A process for producing high shrinkage pet yarn |
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KR1019830005990A KR850001235B1 (en) | 1983-12-19 | 1983-12-19 | A process for producing high shrinkage pet yarn |
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KR850004280A KR850004280A (en) | 1985-07-11 |
KR850001235B1 true KR850001235B1 (en) | 1985-08-23 |
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KR20010065701A (en) * | 1999-12-30 | 2001-07-11 | 조민호 | High shrinkable polyester yarn and preparation thereof |
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KR102215193B1 (en) | 2020-08-28 | 2021-02-16 | 유천식 | Manufacturing method of recycled polyester yarn fabric drose type panties |
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Publication number | Priority date | Publication date | Assignee | Title |
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KR20010065701A (en) * | 1999-12-30 | 2001-07-11 | 조민호 | High shrinkable polyester yarn and preparation thereof |
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