KR20000039595A - Process for producing low shrinkage polyester water repellent fiber with direct spin-draw type - Google Patents

Process for producing low shrinkage polyester water repellent fiber with direct spin-draw type Download PDF

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KR20000039595A
KR20000039595A KR1019980054981A KR19980054981A KR20000039595A KR 20000039595 A KR20000039595 A KR 20000039595A KR 1019980054981 A KR1019980054981 A KR 1019980054981A KR 19980054981 A KR19980054981 A KR 19980054981A KR 20000039595 A KR20000039595 A KR 20000039595A
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South Korea
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water repellent
repellent
roller
yarn
low shrinkage
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KR1019980054981A
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Korean (ko)
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KR100294905B1 (en
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김윤조
김효대
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구광시
주식회사 코오롱
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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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
    • 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
    • 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

PURPOSE: A process for producing a low shrinkage polyester water repellent fiber is provided which has improved productivity and water repellency by using a direct spin-drawing type. CONSTITUTION: A low shrinkage polyester water repellent fiber is prepared by repellent treatment and heat treatment after stretch process. In the heat treatment, heat setting is performed at the temperature of at least of 300°C by a heater. The repellent treatment is performed by using a fluoric compound as repellent agent. An equipment for producing a repellent fiber is comprised of a quenching chamber(10), an oil roller(20), a godet roller(30), a first godet roller(31), a second godet roller(32), a third godet roller(33), a fourth godet roller(34), a fifth godet roller(35), a sixth godet roller(36), an oil jet(40), a metering pump(41), a vessel(42) for supplying a repellent liquid, a heater(50) and a rewinder(60).

Description

직접방사연신 방식의 저수축 폴리에스테르 발수사의 제조방법Manufacturing method of low shrinkage polyester water repellent yarn by direct spinning

본 발명은 폴리에스테르 발수사의 제조에 관한 것으로서, 보다 구체적으로는 직접방사연신방식에 의해 우수한 품질의 저수축 폴리에스테르 발수사를 높은 생산성으로 제조하는 방법에 관한 것이다.The present invention relates to the production of a polyester water repellent, and more particularly to a method for producing a low shrinkage polyester water repellent yarn of high quality by a direct spinning stretching method with high productivity.

일반적으로 저수축 폴리에스테르 발수사를 제조하는 데에는 직접방사연신 방식(이하, DSD 방식이라 합니다.)과 미연신사를 횡연신시키는 방식(이하, W/D 방식이라 합니다.)이 이용되고 있다.In general, a direct spinning drawing method (hereinafter referred to as a DSD method) and a method of transverse stretching of undrawn yarn (hereinafter referred to as W / D method) are used to manufacture a low shrinkage polyester water repellent yarn.

DSD 방식은 방사, 연신, 이완을 하나의 공정으로 연결하는 공정으로써 방사부의 구금직하에서 방사된 미연신사를 롤러에서 연신 및 이완공정을 거쳐서 원사를 제조하는 방식으로 생산성 측면에서 장점이 있다.The DSD method is a process that connects spinning, stretching, and relaxation in one process, and has an advantage in productivity in that undrawn yarn spun under the spinneret of the spinning unit is manufactured through yarn stretching and relaxation process in a roller.

DSD 방식으로 발수사를 제조하는 방법으로는 다음의 두가지 방법이 잘 알려져 있다. 그 한 방법은 미연신사를 오일롤러를 이용하여 연신전에 유제와 발수액을 처리한후 연신 및 이완을 시키는 방법이고, 다른 한 방법은 폴리에스테르 폴리머에 발수성을 가진 폴리머를 혼합시켜 함께 방사하는 방법이다.The following two methods are well known as a method of preparing a water repellent yarn by the DSD method. One method is to draw and relax unstretched yarn after oil and water repellent is processed before stretching using oil roller, and another method is to mix polyester polymer with water repellent polymer and spin it together. .

전자의 방법으로 발수사를 제조하는 경우에는, 연신공정 이전에 발수액을 유제와 혼용하여 미연신사에 처리하기 때문에 연신공정중 연신 롤러에 발수액 및 그 잔유물 등에 의한 오염이 발생하며 이와 같은 오염물들이 이 롤러의 고온에 의해 열경화되어 타르 등이 생겨나게 되고, 이에 의해 잦은 절사 및 모우가 발생하게 되며, 따라서 제품의 외관이 나빠지고 생산성이 떨어지는 등의 단점이 있다. 또한, 발수사에 요구되는 발수성능을 발현시키기 위해서는 발수제의 함량을 높여야하는데 이와 같은 경우에는 모우 및 절사의 발생빈도가 증가하여 조업성이 상당히 떨어지므로 생산이 곤란하여 일정 수준이상의 발수성능을 발현하기 어렵다.In the case of manufacturing the water repellent yarn by the former method, since the water repellent liquid is mixed with the emulsion before the drawing process and treated to the undrawn yarn, contamination by the water repellent liquid and its residues occurs on the drawing roller during the drawing process, The high temperature of the roller is thermally cured, resulting in tar and the like, which causes frequent cutting and bleeding, thus degrading the appearance of the product and lowering productivity. In addition, in order to express the water repellent performance required for water repellent, the content of the water repellent should be increased. In such a case, the occurrence frequency of cattle and cuttings is increased, and operation efficiency is considerably reduced, which makes it difficult to produce the water repellent performance. it's difficult.

후자의 방법으로 발수사를 제조하는 경우에는, 폴리에스테르 폴리머 칩과 발수성을 가지는 폴리머와의 혼합 기술이 중요시 되며, 서로 상이한 폴리머가 혼용되어서 방사, 연신되기 때문에 제사기술에 있어서도 고도의 기술이 필요하다. 이 방법으로 제조되는 발수사는 발수성능 및 내구성은 상당히 우수한 편이나, 산업용사 수준에 적합한 원사물성을 발현하기 어려우며 서로 다른 폴리머간의 혼합시 혼합편차에 의한 물성편차가 크게 나타날 수 있다.In the case of producing a water repellent yarn by the latter method, a mixing technique of a polyester polymer chip and a polymer having water repellency is important, and since a different polymer is mixed and spun and stretched, a high technique is required in the spinning technique. . Water repellent yarns produced by this method are quite excellent in water repellency and durability, but it is difficult to express the raw material properties suitable for the industrial yarn level, and the physical property deviation due to the mixing deviation may be large when mixing between different polymers.

W/D 방식은 미연신사와 연신사 제조 공정이 분리되어 있어서 미연신사 제조후 횡연신기에서 연신 및 이완을 거쳐서 제조하는 방식이며 대체로 공정 특성상 저수축 발수사의 생산에 많이 적용되고 있다.The W / D method is a method of manufacturing a non-drawn yarn and a stretched yarn, which are separated from each other, so that the non-drawn yarn is manufactured after stretching and relaxation in a transverse stretching machine.

W/D 방식으로 발수사를 제조하는 방법에는 다음의 두가지 방법이 잘 알려져 있다. 그 한 방법은 연신공정중 발수액을 롤코터(Roll-Coater)를 이용하여 처리하는 방법이고, 또 한 방법은 미연신사제조시에 방사유제에 발수액을 혼용하여 발수성을 부여하는 방법이 있다.The following two methods are well known for preparing a water repellent yarn by the W / D method. One method is to treat the water-repellent liquid during the stretching process by using a roll coater (Roll-Coater), and another method is a method of imparting water repellency by mixing the water-repellent liquid to the spinning oil during the manufacture of undrawn yarn.

전자의 방법으로 발수사를 제조하는 경우에는, 열처리 시간이 짧아서 인터레이서(Interlacer)나 가이드 접촉 시에 마찰에 의해 발수제가 떨어져 나가 발수성과 내구성이 저하되어 균일한 발수성능의 발현이 어렵다.In the case of manufacturing the water repellent yarn by the former method, the heat treatment time is short, so that the water repellent agent falls off by friction during interlacer or guide contact, so that the water repellency and durability are lowered, so that the uniform water repellency is difficult to develop.

후자의 방법으로 발수사를 제조하는 경우에는, 원사의 낮은 품질과 발수제의 탈락에 의한 발수성능의 저하 등의 문제점이 나타난다.In the case of producing the water repellent yarn by the latter method, problems such as low quality of the yarn and a decrease in the water repellent performance due to the dropping of the water repellent agent appear.

본 발명은 발수제를 처리하여 DSD 방식으로 발수사를 제조하는 종래기술의 문제점을 감안하여, 개선된 발수성능의 저수축 폴리에스테르 발수사를 높은 생산성으로 제공하는 것을 기술적 과제로 한다.SUMMARY OF THE INVENTION In view of the problems of the prior art of treating a water repellent by producing a water repellent by treating a water repellent, the present invention provides a low water-repellent polyester water repellent with improved water repellency.

상기한 과제를 해결하기 위한 본 발명자의 연구에서 연신공정 직후 발수처리 및 열처리 공정을 거치게 하면 기존의 발수제를 처리하는 직접방사연신 방식의 문제점인 낮은 생산성과 불균일한 발수처리로 인한 발수성능의 저하를 해결할 수 있게 된다는 놀라운 사실을 알게 되었다.In the study of the present inventors to solve the above problems, the water repellent treatment and heat treatment process immediately after the stretching process to reduce the water repellent performance due to the low productivity and non-uniform water repellent treatment, which is a problem of the direct radiation drawing method of treating the existing water repellent agent I found an amazing fact that I could solve it.

도 1은 본 발명의 바람직한 구현에 따라 직접방사연신방식으로 발수사를 제조하는 공정을 설명하기 위한 개략적인 장치도.1 is a schematic device diagram for explaining a process for producing a water repellent yarn in a direct radiation drawing method according to a preferred embodiment of the present invention.

도 2는 종래의 발수사 제조장치도.Figure 2 is a conventional water repellent production apparatus.

*도면중 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10 : 퀸칭챔버(Quenching Chamber) 20 : 오일롤러10: Quenching Chamber 20: Oil Roller

30 : 고뎃롤러(Godet Roller)군 31 : 제1 고뎃롤러30: Gorod roller group 31: the first go roller

32 : 제2 고뎃롤러 33 : 제3 고뎃롤러32: second roller roller 33: third roller roller

34 : 제4 고뎃롤러 35 : 제5 고뎃롤러34: fourth roller roller 35: fifth roller

36 : 제6 고뎃롤러 40 : 오일제트(상·하)36: 6th roller roller 40: oil jet (upper and lower)

41 : 메터링 펌프(Metering Pump) 42 : 발수액 공급통41: metering pump 42: water repellent bottle

50 : 히터 60 : 권취기50: heater 60: winder

상기한 과제를 해결한 본 발명에 의하면 직접방사연신 방식에서 발수제를 처리하여 저수축 폴리에스테르 발수사를 제조하는 방법에 있어서, 연신공정 직후 발수처리 및 열처리 공정을 행하는 것을 특징으로 하는 저수축 폴리에스테르 발수사의 제조방법이 제공된다.According to the present invention, which solves the above problems, in the method of manufacturing a low shrinkage polyester water repellent by treating a water repellent agent in a direct radiation drawing method, a low shrinkage polyester characterized in that a water repellent treatment and a heat treatment step are performed immediately after the stretching step. A method for producing a water repellent yarn is provided.

또한 본 제조방법은 연신공정 전에 유제처리와 함께 추가 발수제 처리를 수행하는 것을 특징으로 한다.In addition, the present production method is characterized by performing an additional water repellent treatment with the tanning treatment before the stretching process.

또한 본 제조방법은 상기 열처리 공정에서 비접촉식 히터를 이용하여 300℃이상의 온도로 열고정을 행하는 것을 특징으로 한다.In addition, the manufacturing method is characterized in that the heat setting at a temperature of 300 ℃ or more using a non-contact heater in the heat treatment step.

또한 본 제조방법은 발수제로써 불소계화합물을 이용하는 것을 특징으로 한다.In addition, the present production method is characterized by using a fluorine-based compound as a water repellent.

이하, 본 발명을 본발명의 바람직한 구현에 따른 발수사 제조공정을 예시한 첨부 도면을 참조하여 보다 상세하게 설명하기로 한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings illustrating a water repellent manufacturing process according to a preferred embodiment of the present invention.

도 1에 나타낸 바와 같이 용융 폴리에스테르는 방사되고 퀸칭 챔버(10)를 통과하여 냉각고화된 미연신사로 되고, 이는 오일롤러(20)에서 유제처리된다. 오일 롤러(20)에서는 유제만을 단독으로 처리할 수도 있고, 발수제도 함께 처리할 수도 있다.As shown in Fig. 1, the molten polyester is spun and passed through the quenching chamber 10 to be cooled solidified undrawn yarn, which is tanned in the oil roller 20. In the oil roller 20, only an oil agent may be processed independently, and a water repellent may also be processed together.

유제처리를 마친 미연신사는 일련의 고뎃롤러들(31, 32, 33, 34, 35, 36)로 이루어진 연신장치(30)를 통과하면서 연신 및 이완된다. 연신장치 혹은 고뎃롤러군(30)을 통과한 연신사는 오일제트(40)에서 발수제로 처리된다. 이와 같은 연신후 발수제 처리는 원할 경우 오일롤러를 이용하여 수행할 수도 있다. 그러나 오일제트(40)는 오일롤러를 사용하여 발수처리를 할 때보다 원사를 구성하는 모든 필라멘트에 발수액을 균일하게 처리해 주기 때문에 훨씬 효과적이다.The unstretched yarn after the tanning process is stretched and relaxed while passing through the stretching device 30 composed of a series of rollers 31, 32, 33, 34, 35, and 36. The stretched yarn that has passed through the stretching apparatus or the high roller group 30 is treated with a water repellent in the oil jet 40. Such water repellent treatment after stretching may be carried out using an oil roller if desired. However, the oil jet 40 is much more effective because it uniformly treats the water-repellent liquid on all the filaments constituting the yarn than when water-repellent treatment is performed using the oil roller.

상기와 같이 발수처리된 연신사는 비접촉식 히터(50)를 통과하면서 발수제가 고착된다. 히터(50)는 비접촉식이므로, 종래 접촉식에서 발수성 저하와 내구성 저하 등의 문제를 일으키는 마찰에 의한 발수제의 탈락없이 발수처리된 원사를 안정하게 열고정시킨다. 열고정 공정이 끝난 발수사는 권취롤러(60)에 의해 권취된다.The stretched yarn treated as described above is fixed to the water repellent while passing through the non-contact heater 50. Since the heater 50 is a non-contact type, the water-repellent yarn is stably heat-fixed without falling off of the water-repellent agent caused by friction, which causes problems such as water repellency degradation and durability deterioration in the conventional contact type. The water repellent water after the heat setting process is wound up by the winding-up roller 60.

상기와 같은 공정에 의해서 발수성능이 향상된 저수축 폴리에스테르 발수사를 높은 생산성으로 제조하는 것이 가능하게 된다.By the above process, it is possible to manufacture a low shrinkage polyester water repellent yarn with improved water repellency.

본 발명에서는 미연신사의 연신이 완료된 직후에 연신사에 대해 발수처리 및 열처리를 행하여 주기 때문에 발수액에 의한 고뎃 롤러의 오염으로 인한 생산성 저하를 방지할 수 있을 뿐만 아니라, 고뎃 롤러와의 마찰에 의한 발수제의 탈락이 없어 발수성능의 발현이 종래의 방식에 비해 우수하다. 또한, 오일 제트에서 원사에 대한 발수액의 픽업(PICK-UP)량을 조절하는 것이 용이하기 때문에 종래의 직접방사연신방식에서 발현하기 어려웠던 고도의 발수성능에 쉽게 도달할 수 있다. 또한, 종래의 직접방사연신방식에서 사용되는 발수처리방식과 혼용하여 사용할 경우에 2단계의 발수처리가 가능하여 발수성능 및 내구성이 더욱 우수한 저수축 발수사의 제조가 가능하다.In the present invention, since the water-repellent treatment and heat treatment are performed on the stretched yarn immediately after the stretching of the non-drawn yarn is completed, it is possible to prevent the decrease in productivity due to contamination of the high-pressure roller by the water-repellent fluid, and also due to friction with the high-pressure roller. There is no dropping out of the water repellent, so that the expression of water repellency is superior to the conventional method. In addition, since it is easy to control the amount of pick-up (PICK-UP) of the water repellent to the yarn in the oil jet, it is possible to easily reach the high water repellent performance that was difficult to express in the conventional direct spinning stretching method. In addition, when used in combination with the water-repellent treatment method used in the conventional direct radiation drawing method is possible to the water-repellent treatment of two stages it is possible to manufacture a low-shrink water-repellent yarn with more excellent water repellency and durability.

본 발명의 구체적인 장점 및 특징은 하기 실시예를 통해서 보다 명확해질 것이다. 단, 본 발명은 하기 실시예에 한정되지 않는다.Specific advantages and features of the present invention will become more apparent from the following examples. However, the present invention is not limited to the following examples.

(실시예 1∼6)(Examples 1 to 6)

도 1의 장치에서 고유점도 1.0의 폴리에스테르를 직접방사연신하여 발수사를 제조하였다. 연신은 제1고뎃롤러(31) 600/80 mpm/℃, 제2고뎃롤러(32) 630/100 mpm/℃, 제3고뎃롤러(33) 2600/130 mpm/℃, 제4고뎃롤러(34) 3300/240 mpm/℃, 제5고뎃롤러(35) 3000/230 mpm/℃, 제6고뎃롤러(36) 3000/상온 mpm/℃의 조건으로 수행하였다. 오일롤러(20)에서는 유제만을 사용하였고, 발수제는 오일제트(40)에서만 도포처리하였다. 발수제는 -CF2체인을 5개 이상 가지고 있는 불소계화합물의 유효성분을 20% 이상 가지는 화합물을 사용하였다. 각 예에서 발수액의 농도, PICK-UP 량 및 비접촉식 히터(50)의 온도를 하기 표 1에 나타낸 바와 같이 변경하여 실험하였다.A water repellent yarn was prepared by directly spinning the polyester having an intrinsic viscosity of 1.0 in the apparatus of FIG. 1. Stretching is the first high roller (31) 600/80 mpm / ℃, the second high roller (32) 630/100 mpm / ℃, the third high roller (33) 2600/130 mpm / ℃, the fourth high roller (34 ) 3300/240 mpm / ℃, the fifth gourd roller (35) 3000/230 mpm / ℃, the sixth gourd roller (36) was carried out under the conditions of 3000 / room temperature mpm / ℃. Only the oil agent was used in the oil roller 20, and the water repellent was applied only to the oil jet 40. As the water repellent, a compound having 20% or more of an active ingredient of a fluorine-based compound having five or more -CF 2 chains was used. In each example, the concentration of the water repellent, the amount of PICK-UP, and the temperature of the non-contact heater 50 were changed as shown in Table 1 below.

각 예에서 얻은 최종 발수사의 물성 및 각 예에서의 공정특성을 다음과 같은 방법으로 평가하였다. 평가결과는 하기 표 2에 제시된다.The properties of the final water repellent obtained in each example and the process characteristics in each example were evaluated in the following manner. The evaluation results are shown in Table 2 below.

※ 강도 및 절신율: 만능 측정기(Instron)을 사용하여 측정한다.※ Strength and elongation rate: Measured using a universal measuring instrument (Instron).

※ 수축률: 무장력하에서 190℃에서 15분동안 방치하여 열수축시킨 원사의 수축 전·후의 길이변화율로 나타낸다.※ Shrinkage rate: It is expressed as the length change rate before and after the shrinkage of the heat-shrink yarn left at 190 ° C for 15 minutes under no tension.

(L0: 열수축전의 길이, L1: 열수축후의 길이)(L 0 : length before heat shrink, L 1 : length after heat shrink)

※ 발수도 : 염료액(Miketone Blue FBL 0.5wt%)에 원사의 한쪽 끝을 수직방향으로 24시간 침지후 원사의 침지부분으로 부터 염료가 타고 올라간 높이로 나타낸다.※ Water repellency: It is expressed as the height of dye ride up from the immersion part of yarn after immersing one end of yarn in vertical direction for 24 hours in dye solution (Miketone Blue FBL 0.5wt%).

※ 생산성 : 효율 100%로 가정한, 1일 이론적 생산량과 실제 생산량의 비율로 나타낸다.※ Productivity: It is expressed as the ratio of daily theoretical output and actual output, assuming 100% efficiency.

식중, G0는 이론적 풀 치즈(Full Cheese)의 1일 생산개수이고,Where G 0 is the theoretical daily production of full cheese,

G1은 실제 생산된 풀 치즈의 개수이다.G 1 is the actual number of full cheeses produced.

※ 모우수 : 생산된 발수사를 정경할 때 모우 감지기(Detector)에 감지된 일정길이당 모우수로 나타낸다.※ Rainfall: It represents the rainfall per fixed length detected by the Detector when the produced water-repellent canon.

(실시예 7)(Example 7)

오일롤러(20)에서 1차 발수제 처리하고 오일제트(40)에서 2차 발수제 처리하며, 발수액의 농도, PICK-UP 량 및 비접촉식 히터(50)의 온도를 하기 표 1에 나타낸 바와 같이 변경한 것을 제외하고는 실시예 1과 동일한 절차를 반복하였다. 본 예에서 얻은 최종 발수사의 물성 및 각 예에서의 공정특성을 측정 및 평가하여 그 결과를 하기 표 2에 나타내었다.The first water repellent treatment in the oil roller 20 and the second water repellent treatment in the oil jet 40, the concentration of the water repellent, the amount of pick-up and the temperature of the non-contact heater 50 as shown in Table 1 The same procedure as in Example 1 was repeated except that. The physical properties of the final water repellent obtained in this example and the process characteristics in each example were measured and evaluated, and the results are shown in Table 2 below.

(비교예 1∼4)(Comparative Examples 1 to 4)

도 2의 장치에서 발수제의 농도 및 PICK-UP 량을 변화시켜 발수사를 제조하였다. 사용된 폴리머, 방사조건, 연신조건 및 발수제는 상기 실시예와 동일하게 하였다. 각 예에서 얻은 최종 발수사의 물성 및 각 예에서의 공정특성을 측정 및 평가하여 그 결과를 하기 표 2에 나타내었다.The water repellent was prepared by changing the concentration of the water repellent and the amount of PICK-UP in the apparatus of FIG. The polymers, spinning conditions, stretching conditions and water repellents used were the same as in the above examples. The physical properties of the final water repellent obtained in each example and the process characteristics in each example were measured and evaluated, and the results are shown in Table 2 below.

항목Item 발수액농도(wt%)Water repellent concentration (wt%) 발수액농도(wt%)Water repellent concentration (wt%) PICK-UP량(wt%)PICK-UP amount (wt%) 온도(℃)Temperature (℃) 실시예 1Example 1 오일제트Oil jet 원액사용Undiluted use 0.20.2 -- 히터heater -- -- 300300 실시예 2Example 2 오일제트Oil jet 원액사용Undiluted use 0.20.2 -- 히터heater -- -- 350350 실시예 3Example 3 오일제트Oil jet 1515 0.20.2 -- 히터heater -- -- 300300 실시예 4Example 4 오일제트Oil jet 1515 0.20.2 -- 히터heater -- -- 350350 실시예 5Example 5 오일제트Oil jet 1515 0.50.5 -- 히터heater -- -- 350350 실시예 6Example 6 오일제트Oil jet 1515 0.70.7 -- 히터heater -- -- 350350 실시예 7Example 7 오일롤러Oil roller 22 0.20.2 -- 오일제트Oil jet 1515 0.50.5 -- 히터heater -- -- 350350 비교예 1Comparative Example 1 오일롤러Oil roller 1515 0.50.5 -- 비교예 2Comparative Example 2 오일롤러Oil roller 1515 0.70.7 -- 비교예 3Comparative Example 3 오일롤러Oil roller 5050 0.70.7 -- 비교예 4Comparative Example 4 오일롤러Oil roller 22 0.20.2 --

항목Item 원사물성Yarn Properties 발수성(mm)Water repellency (mm) 생산성(%)productivity(%) 모우수(ea/106m)Rainfall (ea / 10 6 m) 강도(g/d)Strength (g / d) 절신(%)Body cut (%) 건수(%)Number of cases (%) 실시예1Example 1 7.87.8 23.223.2 4.24.2 3434 98.798.7 3.43.4 실시예2Example 2 7.87.8 23.623.6 4.14.1 2525 98.698.6 3.33.3 실시예3Example 3 7.77.7 23.723.7 4.34.3 3333 98.498.4 3.23.2 실시예4Example 4 7.87.8 23.923.9 4.24.2 2323 98.598.5 3.33.3 실시예5Example 5 7.87.8 24.124.1 4.14.1 1616 98.298.2 3.43.4 실시예6Example 6 7.87.8 24.324.3 4.24.2 99 98.198.1 3.33.3 실시예7Example 7 7.87.8 23.423.4 4.14.1 55 98.298.2 3.43.4 비교예1Comparative Example 1 7.77.7 22.122.1 4.64.6 5252 90.290.2 7.37.3 비교예2Comparative Example 2 7.77.7 21.521.5 4.94.9 3838 86.286.2 8.98.9 비교예3Comparative Example 3 7.67.6 21.521.5 5.15.1 3232 80.580.5 12.312.3 비교예4Comparative Example 4 7.87.8 23.823.8 4.54.5 6868 98.398.3 3.23.2

상기 실시예 및 비교예의 결과를 나타낸 표 2로부터 알 수 있는 바와같이, 본 발명에 따라 연신공정 직후 발수처리 및 열처리 공정을 거치게 하면 발수성능이 우수하고 모우수가 적은 고품질의 저수축 폴리에스테르 발수사를 높은 생산성으로 얻을 수 있게 된다.As can be seen from Table 2 showing the results of the above Examples and Comparative Examples, according to the present invention, a high-quality low-shrink polyester water-repellent yarn having excellent water repellency and low inferiority when subjected to a water repellent treatment and a heat treatment process immediately after the stretching process High productivity can be obtained.

Claims (4)

직접방사연신 방식에서 발수제를 처리하여 저수축 폴리에스테르 발수사를 제조하는 방법에 있어서, 연신공정 직후 발수처리 및 열처리 공정을 행하는 것을 특징으로 하는 저수축 폴리에스테르 발수사의 제조방법.A method for producing a low shrinkage polyester water repellent yarn by treating a water repellent agent in a direct spinning drawing method, the method of producing a low shrinkage polyester water repellent yarn characterized by performing a water repellent treatment and a heat treatment step immediately after the stretching step. 제 1항에 있어서, 연신공정 전에 유제처리와 함께 추가 발수제 처리를 수행하는 것을 특징으로 하는 저수축 폴리에스테르 발수사의 제조방법.The method for producing a low shrinkage polyester water repellent yarn according to claim 1, wherein an additional water repellent treatment is carried out together with an emulsion treatment before the stretching step. 제 1항에 있어서, 열처리 공정에서 비접촉식 히터를 이용하여 300℃이상으로 열고정을 행하는 것을 특징으로 하는 저수축 폴리에스테르 발수사의 제조방법.The method for producing a low shrinkage polyester water repellent yarn according to claim 1, wherein the heat setting step is performed at 300 DEG C or higher using a non-contact heater in the heat treatment step. 제 1항에 있어서, 발수제로써 불소계화합물을 이용하여 다단계로 발수처리를 행하는 것을 특징으로 하는 저수축 폴리에스테르 발수사의 제조방법.The method for producing a low shrinkage polyester water repellent yarn according to claim 1, wherein the water-repellent treatment is carried out in multiple steps using a fluorine-based compound as a water repellent.
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