KR0131839B1 - Manufacturing method of polyester fiber which is dyeable with cation dye - Google Patents
Manufacturing method of polyester fiber which is dyeable with cation dyeInfo
- Publication number
- KR0131839B1 KR0131839B1 KR1019950014897A KR19950014897A KR0131839B1 KR 0131839 B1 KR0131839 B1 KR 0131839B1 KR 1019950014897 A KR1019950014897 A KR 1019950014897A KR 19950014897 A KR19950014897 A KR 19950014897A KR 0131839 B1 KR0131839 B1 KR 0131839B1
- Authority
- KR
- South Korea
- Prior art keywords
- polyester fiber
- weight
- melt viscosity
- cation dye
- polyether ester
- Prior art date
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Classifications
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- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- 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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- 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
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
- D06P3/522—Polyesters using basic dyes
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- 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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- 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
- D10B2401/00—Physical properties
- D10B2401/14—Dyeability
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
Description
본 발명은 폴리에스테르 섬유의 연색성을 개선하기 위하여 사용되는 카티온 염료 가염형 폴리에스테르의 방사공정 중에서 발생하기 쉬운 팩압문제를 개선시킨 폴리에스테르 섬유의 제조방법에 관한 것으로, 좀 더 구체적으로는 테레프탈산과 에틸렌글리콜을 에스테르화하여 제조한 비스-베타-히드록시에틸렌테레프탈레이트 구조의 올리고머와 폴리(알킬렌옥사이드)글리콜 10.0∼70.0중량부를 중합하여 얻은 폴리에테르에스테르 용융정도 강하제 0.2∼5.0중량부를 카티온 염료 가염형 폴리에스테르에 배합함으로써 제조된 섬유의 물성저하 및 염색성의 저하없이 제사성이 향상된 카티온 염료 가염형 폴리에스테르 섬유를 제조할 수 있었다.The present invention relates to a method for producing a polyester fiber that improves the pack pressure problem that is likely to occur during the spinning process of the cationic dye salt type polyester used to improve the color rendering of the polyester fiber, and more specifically, with terephthalic acid 0.2 to 5.0 parts by weight of polyether ester melting-lowering agent obtained by polymerizing 10.0 to 70.0 parts by weight of an oligomer having a bis-beta-hydroxyethylene terephthalate structure prepared by esterifying ethylene glycol and 10.0 to 70.0 parts by weight of poly (alkylene oxide) glycol. By blending with the salt type polyester, the cationic dye salt type polyester fiber with improved sacrificial properties could be produced without deteriorating the physical properties and dyeing properties of the produced fiber.
폴리에스테르 섬유는 그 우수한 특성으로 인하여 각종 의류분야에서 폭넓게 사용되고 있지만, 높은 결정성과 소수성으로 인하여 염색하기 어렵기 때문에 분산염료를 사용하는 물리적인 염색만이 가능하다. 예를 들면, 섬유를 가소화시키는 기능을 갖는 캐리어를 같이 사용하여 색상을 발현하거나, 190∼210℃ 의 고온에서 패딩-고온 큐어링으로 이루어지는 써모졸(thermosol) 염색법 등을 사용하고 있지만, 써모졸 염색법은 고온처리의 과정중 염료의 이염현상과 기타 섬유와의 혼방품에 적용할 수 없는 단점이 있다. 따라서, 폴리에스테르 섬유자체의 성질을 바꾸어 염색성을 향상시키는 방법이 시도되고 있으며, 그 중에서 술폰산염을 가지는 이소프탈산과의 공중합에 의해 카티온 염료와 친화성을 갖게 하는 방버비 일본특공 소36-10497과 49-38037호에 공지되어 있다. 그러나, 상기 방법은 공단량체중의 술폰산염기가 중합과정에서 중합 억제인자 및 부반응 생성인자로 작용하여 중합시간의 연장과 고분자의 착색을 유발하며, 또한 방사중에 고분자 용융물중 술폰산염기를 가지는 이소프탈산 조성부분으로 인한 용융점도의 상당한 증가를 가져오게 되므로 카티온 염료 가염형 폴리에스테르는 통상의 폴리에스테르 보다 불순물을 많이 함유하게 되고, 방사, 연신공정 중에서 팩압의 증가 및 폴리에스테르 용융물의 열분해 등으로 방사성이 저하 및 노즐팩 교환주기의 단축을 불러오게 된다.Polyester fiber is widely used in various garments because of its excellent properties, but it is difficult to dye due to high crystallinity and hydrophobicity, so only physical dyeing using disperse dyes is possible. For example, although the carrier which has the function of plasticizing a fiber is used together, the color is expressed, or the thermosol dyeing method which consists of padding-high temperature curing at the high temperature of 190-210 degreeC, etc. is used, Silver has a disadvantage that it can not be applied to the dye discoloration phenomenon and blends with other fibers during the high temperature treatment. Therefore, a method of improving the dyeability by changing the properties of the polyester fiber itself has been attempted, and among them, the banburbi Japanese special publication 36-10497 which makes affinity with cation dye by copolymerization with isophthalic acid having a sulfonate. And 49-38037. However, in the above method, the sulfonate group in the comonomer acts as a polymerization inhibitor and a side reaction generating factor in the polymerization process, leading to prolongation of the polymerization time and coloring of the polymer, and isophthalic acid composition having a sulfonate group in the polymer melt during spinning. Since it leads to a significant increase in melt viscosity due to the part, the cationic dye salt type polyester contains more impurities than conventional polyester, and it is radioactive due to the increase of pack pressure during the spinning and drawing process and the thermal decomposition of the polyester melt. This leads to a drop and a shortening of the nozzle pack change interval.
상기의 방사공정중 발생하는 폴리에스테르 용융점도 증가에 의한 문제점은 방사온도를 높임으로써 해결할 수도 있지만, 이와 같은 조치는 폴리에스테르 용융물의 열분해를 더욱 가속화시키게 되며, 결과적으로 방사된 실의 중합도가 강도를 저하시키는 원인이 된다. 용융점도 강하의 또 다른 방법으로는 스테아린산이나 스테아릴알코올과 같은 계면활성제를 수지조성물에 첨가하기도 하지만 이와 같은 윤활제의 첨가 역시 용융점도의 강하와 더불어 중합도의 저하를 수반하는 문제점이 있다.The problem caused by the increase of the melt viscosity of the polyester generated during the spinning process can be solved by increasing the spinning temperature, but such measures further accelerate the thermal decomposition of the melt of the polyester, and consequently, the degree of polymerization of the spun yarn increases the strength. It causes the deterioration. As another method of lowering the melt viscosity, a surfactant such as stearic acid or stearyl alcohol may be added to the resin composition, but the addition of such a lubricant also has a problem of accompanied with a decrease in the melt viscosity and a decrease in the polymerization degree.
따라서, 본 발명의 목적은 카티온 염료 가염형 폴리에스테르 섬유제조 공정중 방사과정에서 팩압문제와 섬유의 물성 및 염색성의 저하가 없는 제사성이 우수한 카티온 염료 가염형 폴리에스테르 섬유를 제공하는데 있다.Accordingly, it is an object of the present invention to provide a cationic dye salt type polyester fiber having excellent dedustability without the pack pressure problem and the deterioration of the physical properties and the dyeing property in the spinning process during the cationic dye salt type polyester fiber manufacturing process.
이에 본 발명자들은 카티온 염료 가염형 폴리에스테르 섬유제조 공정중에 폴리에스테르 고분자쇄에 에테르기가 도입된 용융점도 강하제를 첨가하는 방법으로 상기 문제점을 해결하여 본 발명에 이르게 되었다.Accordingly, the present inventors have solved the above problems by adding a melt viscosity lowering agent in which an ether group is introduced into the polyester polymer chain during the cationic dye salt-type polyester fiber manufacturing process.
본 발명을 좀 더 구체적으로 설명하면 다음과 같다.The present invention is described in more detail as follows.
테레프탈산과 에틸렌글리콜을 에스테르화 하여 제조한 비스-베타-히드록시에틸렌테레프탈레이트 구조의 올리고머와 공단량체로 폴리(알킬렌옥사이드)글리콜 10.0∼70.0중량부를 중합하여 얻은 폴리에테르에스테르계 용융점도 강하제 0.2∼5.0중량부를 카티온 염료 가염형 폴리에스테르에 배합하여 제사성이 우수한 카티온 염료 가염형 폴리에스테르 섬유를 제조하였다.Polyether ester melt viscosity reducing agent obtained by polymerizing 10.0-70.0 weight part of poly (alkylene oxide) glycol with the oligomer and comonomer of bis-beta-hydroxyethylene terephthalate structure which were prepared by esterifying terephthalic acid and ethylene glycol 0.2- 5.0 weight part was mix | blended with the cation dye salt-type polyester, and the cationic dye salt-type polyester fiber excellent in ritual property was manufactured.
본 발명에 있어서 폴리에테르에스테르의 구성성분이 되는 폴리(알킬렌옥사이드)글리콜로는 폴리에틸렌글리콜, 폴리(1,2-프로플렌옥사이드)글리콜, 폴리(1,3-프로필렌옥사이드)글리콜, 폴리(테트라메틸렌옥사이드)글리콜, 폴리(헥사메틸렌옥사이드)글리콜, 에틸렌옥사이드와 프로필렌옥사이드의 불록 또는 랜덤 공중합체 및 에틸렌옥사이드와 테트라하이드로퓨란의 블록 또는 랜덤 공중합체 등이 사용되어질 수 있다.Examples of the poly (alkylene oxide) glycol which is a component of the polyether ester in the present invention include polyethylene glycol, poly (1,2-propene oxide) glycol, poly (1,3-propylene oxide) glycol, poly (tetra) Methylene oxide) glycol, poly (hexamethylene oxide) glycol, a block or random copolymer of ethylene oxide and propylene oxide, and a block or random copolymer of ethylene oxide and tetrahydrofuran may be used.
이중에서도 용융점도 강하제의 성능 및 중합을 고려하여 볼 때 폴리에틸렌글리콜이 특히 바람직하였다. 폴리(알킬렌옥사이드)글리콜의 수평균 분자량은 400∼6000, 특히 600∼5000이 바람직하고, 수평균 분자량이 400 미만에서는 얻어진 폴리에테르에스테르의 기계적 성질이 불량하며, 6000 초과의 경우에 있어서는 중합이 용이하지 않기 때문에 바람직하지 못하다.Among them, polyethylene glycol is particularly preferable in view of the performance and polymerization of the melt viscosity lowering agent. The number average molecular weight of the poly (alkylene oxide) glycol is preferably 400 to 6000, particularly 600 to 5000. If the number average molecular weight is less than 400, the mechanical properties of the obtained polyether ester are poor. It is not preferable because it is not easy.
본 발명의 폴리에테르에스테르계 용융점도 강하제는 그 자체만을 사용하여도 양호한 내열성을 보이지만, 힌더드 페놀계 화합물을 병용하면 더욱 내열성이 향상되어 진다. 여기에서 힌더드 페놀계 화합물로는 페놀계 수산기의 인접위치에 입체장해를 가진 치환기를 가진 페놀 유도체로, 예를 들면 이가녹스 1010, 테트라키스[3,5-디-제3부틸-4히드록시페닐)프로피오네이트]메탄, 1,3,5-트리메틸-2,4,6-트리스(3,5-디-제3부틸페놀), 2,6-디-제3부틸-파라=크레졸, 2,2'-메틸렌비스(4-에틸-6-제3부틸페놀) 등의 황산화제가 사용된다.Although the polyether ester melt viscosity reducing agent of this invention shows favorable heat resistance even if it uses only by itself, when using a hindered phenol type compound together, heat resistance will improve further. Herein, the hindered phenolic compound is a phenol derivative having a substituent having steric hindrance in the adjacent position of the phenolic hydroxyl group, for example, iganox 1010, tetrakis [3,5-di-tert-butyl-4hydroxy Phenyl) propionate] methane, 1,3,5-trimethyl-2,4,6-tris (3,5-di-tert-butylphenol), 2,6-di-tert-butyl-para = cresol, Sulfurizing agents such as 2,2'-methylenebis (4-ethyl-6-tert-butylphenol) are used.
힌더드 페놀계 화합물의 폴리에테르에스테르의 바람직한 배합량은 폴리에테르에스테르 100중량부에 대해 0.5∼10.0중량부가 바람직하다. 만일, 그 사용량이 0.5중량부 미만일 경우 목적하는 내열성의 효과를 얻기 힘들고, 또 10.0중량부를 초과하게 되면 제사성 및 원사물성, 특히 원사강도가 저하된다.As for the preferable compounding quantity of the polyether ester of a hindered phenol type compound, 0.5-10.0 weight part is preferable with respect to 100 weight part of polyether esters. If the amount used is less than 0.5 parts by weight, it is difficult to obtain the desired heat resistance effect, and if it exceeds 10.0 parts by weight, the sandability and the yarn properties, in particular, the yarn strength is lowered.
폴리에테르에스테르계 용융점도 강하제의 합성방법에 관해서는 특별히 한정하는 것은 아니며, 한가지 예를 들면 테레프탈산과 에틸렌글리콜을 에스테르화 반응시켜 얻은 비스-베타-히드록시에틸렌테레프탈레이트 구조의 올리고머에 폴리(알킬렌옥사이드)글리콜, 힌더드 페놀계 화합물을 반응기에 넣고 삼산화안티몬 등의 중축합 촉매의 존재하에서 220∼260℃, 상압하에서 에스테르 교환반응시킨 후, 감압하여 진공하에서 반응시키는 방법이 있다. 더욱 바람직하도록 병용되어지는 힌더드 페놀계 화합물은 중축합 반응종료 후 배합하는 것이 그 효과가 커진다.The method for synthesizing the polyether ester melt viscosity lowering agent is not particularly limited. For example, poly (alkylene) is used in an oligomer having a bis-beta-hydroxyethylene terephthalate structure obtained by esterifying a terephthalic acid and ethylene glycol. Oxygen) glycol and a hindered phenol type compound are put into a reactor, and transesterification is carried out at 220-260 degreeC and atmospheric pressure in presence of polycondensation catalysts, such as antimony trioxide, and it is made to react under reduced pressure under vacuum. It is more effective to mix | blend a hindered phenol type compound used together more preferably after completion | finish of a polycondensation reaction.
본 발명에 있어서 폴리에스테르에 함유된 폴리에테르에스테르 용융점도 강하제의 양은 카티온 염료 가염형 폴리에스테르에 대하여 0.2∼5.0중량부이고, 바람직하기로는 0.3∼3.0중량부이다. 0.2중량부 미만에는 용융점도 강하제의 성능이 불충분하고, 5.0중량부 초과하는 경우는 제사시에 사절 등의 제사성 불량의 원인이 되어 바람직하지 못하다.In the present invention, the amount of the polyether ester melt viscosity lowering agent contained in the polyester is 0.2 to 5.0 parts by weight, and preferably 0.3 to 3.0 parts by weight based on the cation dye salt type polyester. If it is less than 0.2 part by weight, the performance of the melt viscosity lowering agent is insufficient, and if it is more than 5.0 parts by weight, it is not preferable because it causes a sacrificial defect such as trimming at the time of sacrifice.
본 발명의 섬유의 매트릭스가 되는 카티온 염료 가염형 폴리에스테르로서는 임의의 방법으로 제조되어진 것, 예를들면, 디메틸테레프탈레이트와 에틸렌글리콜을 술폰산염을 가지는 이소프탈산과 직접 에스테르화 반응시키던지, 테레프탈산과 에틸렌글리콜을 에스테르화 반응시켜 얻은 비스-베타-히드록시에틸렌테레프탈레이트 구조의 올리고머와 술폰염을 가지는 이소프탈산과 에스테르 교환반응시키던가 하는 방법에 의하여 저중합체를 생성시킨 다음 이 생성물을 감압하에서 가열하여 목적하는 중합도가 될 때까지 중축합 반응시키는 것에 의해 용이하게 제조되어 진다.As the cation dye salt-forming polyester that is a matrix of the fiber of the present invention, one prepared by any method, for example, dimethyl terephthalate and ethylene glycol are directly esterified with isophthalic acid having sulfonate or terephthalic acid. The oligomer was formed by transesterification with an oligomer having a bis-beta-hydroxyethylene terephthalate structure obtained by esterification with ethylene glycol and isophthalic acid having a sulfone salt, and then the product was heated under reduced pressure. It is easily manufactured by carrying out a polycondensation reaction until desired degree of polymerization is achieved.
이 밖에 본 발명의 폴리에스테르는 통상의 폴리에스테르와 같은 산화티탄, 카본블랙 등의 안료 또는 종래에 알려진 착색방지제 등을 첨가할 수 있다.In addition, the polyester of the present invention may be added a pigment such as titanium oxide, carbon black, or conventionally known color inhibitor such as ordinary polyester.
본 발명에서 카티온 염료 가염형 폴리에스테르에 함유시킨 폴리에테르에스테르계 용융점도 강하제의 고유점도는 0.5∼1.5, 더욱 바람직하기로는 0.6∼1.2이다. 만일 이 범위를 벗어나게 되면 방사성이 저하된다.The intrinsic viscosity of the polyether ester melt viscosity lowering agent contained in the cationic dye salt-type polyester in the present invention is 0.5 to 1.5, more preferably 0.6 to 1.2. If it is out of this range, the radioactivity deteriorates.
다음의 실시예 및 비교예는 본 발명을 좀 더 구체적으로 설명하는 것이지만, 본 발명의 범주를 한정하는 것은 아니다.The following examples and comparative examples illustrate the present invention more specifically, but do not limit the scope of the present invention.
다음의 예중 특별히 기재하지 않고 쓰여진 백분율은 중량백분율을, 부는 중량부를 타나내며, 카티온 염료 가염형 폴리에스테르 섬유의 제사성은 카티온 염료 가염형 폴리에스테르와 용융점도 강하제의 합계 50Kg을 방사하고, 미연신사 30Kg을 연신한 것의 사절 및 단사절 회수로 하기와 같이 평가하였다.In the following examples, the percentages written without particular description are given in weight percentages, parts by weight, and the manufacturability of the cationic dye salted polyester fiber is 50 kg of the total of the cationic dye salted polyester and the melt viscosity lowering agent. The number of trimming and single trimming of the stretched gentleman 30 kg was evaluated as follows.
○ : 사절 및 단사절이 전혀 없음○: no trimming or single trimming
△ : 사절 및 단사절이 1회∼4회△: four to four rounds
× : 사절 및 단사절이 5회 이상×: four or more trimming and single trimming
[제조예 1][Production Example 1]
테레프탈산과 에틸렌글리콜을 에스테르화 반응시켜 얻은 비스-베타-히드록시에틸렌테레프탈레이트 구조의 올리고머(이하, 올리고머) 50.0중량부에 수평균 분자량 200의 폴리에틸렌글리콜 50.0중량부 및 이가녹스(Irganox) 1010(스위스의 시바가이기사제의 산화방지제) 1.0부 및 삼산화안티몬 촉매 0.1부와 함께 교반기를 구비한 5리터 반응용기에 넣고 질소 분위기로 250℃ 에서 2시간 가열 교반하여 투명한 균질 용액이 된후, 285℃, 0.5mmHg 이하의 조건에서 120분 중합 후 토출하여 냉각, 컷팅한 직경 2∼3mm, 길이 4mm의 폴리에테르에스테르계 용융점도 강하제 칩(A1)을 제조하였다. 이 폴리머의 고유점도는 0.85이었다.50.0 parts by weight of an oligomer (hereinafter, oligomer) having a bis-beta-hydroxyethylene terephthalate structure obtained by esterification of terephthalic acid and ethylene glycol 50.0 parts by weight of polyethylene glycol having a number average molecular weight of 200 and Irganox 1010 (Switzerland) Into a 5 liter reaction vessel equipped with a stirrer together with 1.0 part of an antioxidant made by Ciba-Geigy Co., Ltd. and 0.1 part of an antimony trioxide catalyst. A polyether ester melt viscosity lowering agent chip (A 1 ) having a diameter of 2 to 3 mm and a length of 4 mm was cooled and cut after being discharged after polymerization for 120 minutes under conditions of mmHg or less. The intrinsic viscosity of this polymer was 0.85.
[제조예 2∼6]Production Examples 2 to 6
표 1에 기재한 바와 같이 조성을 변경하여 폴리에테르에스테르계 용융점도 강하제 칩(A2∼A6)을 얻었고, 그 고유점도를 표 1에 기재하였다.As shown in Table 1, the composition was changed to obtain polyether ester melt viscosity lowering agent chips (A 2 to A 6 ), and the intrinsic viscosity is shown in Table 1.
[실시예 1∼4, 비교예 1, 2][Examples 1-4, Comparative Examples 1, 2]
140℃ 에서 8시간 건조한 고유점도 0.58의 카티온 염료 가염형 폴리에스테르 칩과 70℃ 에서 6시간 진공 건조한 A의 칩을 표 2에 나탠 비율로 블렌드하고 방사온도 285℃, 권취속도 1000m/min으로 방사하여 3.3∼3.9배로 연신한 75/36 필라멘트 연신사를 얻었다. 이 원사의 제사성 및 원사물성을 표 2에 나타내었다.Cationic dye salt-type polyester chip of 0.58 intrinsic viscosity dried at 140 ° C. for 8 hours and A of vacuum dried A chip for 6 hours at 70 ° C. were blended in the ratio shown in Table 2 and spun at a spinning temperature of 285 ° C. and a winding speed of 1000 m / min. To 75/36 filament drawn yarns drawn at 3.3 to 3.9 times. The sacrificial properties and yarn properties of this yarn are shown in Table 2.
폴리에테르에스테르계 용융점도 강하제를 첨가한 경우에 제사성과 원사색조는 양호하였고, 용융점도와 방사 실시 3시간 후의 팩압은 비교예 1에 비해 낮은 값을 보임을 알 수 있다. 비교예 2로 부터 밝혀진 바와 같이 용융점도 강하제의 블렌드 양을 증가시키면, 제사성과 원사물성이 나빠져 바람직하지 못하다.When the polyether ester melt viscosity lowering agent was added, the sacrificial yarn and yarn color tone were good, and the melt viscosity and the pack pressure after 3 hours of spinning were lower than those of Comparative Example 1. As is apparent from Comparative Example 2, when the blend amount of the melt viscosity lowering agent is increased, desabrasion and yarn physical properties deteriorate, which is not preferable.
[실시예 5∼8, 비교예 3][Examples 5 to 8 and Comparative Example 3]
실시예 2에 있어서, 폴리에테르에스테르계 용융점도 강하제를 A대신에 A, A∼A을 사용한 이외에는 실시예 2와 같은 방법으로 실시하고 그 결과를 표 3에 나타내었다.In Example 2, except having used A, A-A instead of A as a polyether ester melt viscosity decreasing agent, it implemented by the method similar to Example 2, and the result is shown in Table 3.
본 발명은 상술한 바와 같이 소량의 용융점도 강하제를 카티온 염료 가염형 폴리에스테르에 함유시키는 것만으로도 현저한 용융점도의 강하와 동시에 방사공정중 팩압 문제를 발생시키지 않는 양호한 원사물성의 카티온 염료 가염형 폴리에스테르 섬유를 제조 가능케 한다.As described above, the present invention provides a good yarn-like cationic dye salt that does not cause a significant pressure drop and a pack pressure problem during the spinning process, even if only a small amount of the melt viscosity lowering agent is contained in the cationic dye salt-forming polyester. It is possible to produce type polyester fibers.
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