KR0180634B1 - Polyester non-woven fabric and method of making it - Google Patents
Polyester non-woven fabric and method of making it Download PDFInfo
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- KR0180634B1 KR0180634B1 KR1019960027467A KR19960027467A KR0180634B1 KR 0180634 B1 KR0180634 B1 KR 0180634B1 KR 1019960027467 A KR1019960027467 A KR 1019960027467A KR 19960027467 A KR19960027467 A KR 19960027467A KR 0180634 B1 KR0180634 B1 KR 0180634B1
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
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- Nonwoven Fabrics (AREA)
Abstract
본 발명은 강신도가 우수하여 고속테이핑시 절단되지 않는 전선피복용 폴리에스테르 장섬유 부직포의 제조방법에 관한 것으로, 그 기술구성은 스펀본딩(SPUN-BONDING)방식에 의하여 제조된 폴리에스테르 장섬유 부직포를 아크릴 수용성 바인더 30~40중량%, 대전방지제 1~5중량%와 물 69~55중량%로 조성된 수지용액에 함침시켜 픽업율 50~100% 되게 스퀴징 한후 100~120℃에서 건조시키고 140~180℃에서 열처리 함으로써 모우발생과 정전기 발생이 없으며 우수한 강신도를 갖는 전선피복용 폴리에스테르 장섬유 부직포를 제공함.The present invention relates to a method for producing a polyester long-fiber nonwoven fabric for wire coating that is excellent in elongation and is not cut during high-speed taping. The technical configuration includes a polyester long-fiber nonwoven fabric manufactured by a spun-bonding method. Immerse in 30 ~ 40% by weight of acrylic water-soluble binder, 1 ~ 5% by weight of antistatic agent and 69 ~ 55% by weight of water, and squeeze to 50 ~ 100% of pick-up rate, and then dry at 100 ~ 120 ℃ and 140 ~ Heat treatment at 180 ℃ provides no fray and static electricity and provides polyester long fiber nonwoven fabric for wire coating with excellent elongation.
Description
본 발명은 전선 제조시 사용되는 강신도가 우수한 테이핑 재료로써 전선피복용 폴리에스테르 장섬유 부직포의 제조방법에 관한 것이다. 전선피복용 부직포는 코어의 결속, 외피의 보강 및 충격흡소, 단열 및 절연 목적으로 사용 되어지고 고속으로 테이핑 되기 때문에 길이 방향 인장강도가 특히 강하여야 하고 외피박리시 모우발생이 적고, 두꺼운 균일성이 우수하여야 한다.The present invention relates to a method for producing a polyester long-fiber nonwoven fabric for wire coating as a taping material excellent in elongation used in the production of electric wires. Nonwoven fabric for wire coating is used for core binding, outer shell reinforcement and shock absorbing, heat insulation and insulation, and is taped at high speed, so the longitudinal tensile strength should be particularly strong, and there is little occurrence of scarring when peeling the shell and thick uniformity Must be excellent
종래에는 전선을 제조할때 동선을 감싸주는 재료로서 필름이나 통상의 부직포를 사용하여 왔으나, 필름은 유연성과 신도가 좋지 않는 폐단이 있고, 통상의 부직포는 강도가 부족하여 테이핑시 절단되는 현상이 빈번하게 발생하기 때문에 고속으로 테이핑되는 전선의 제조공정에 있어서 정지되는 횟수가 많은 문제점이 있엇다. 이러한 문제점을 개선하기 위하여 통상의 방법으로 제조된 폴리에스테르 장섬유 부직포를 음이온계 아크릴 수용성 바인더와 멜라민수지 및 소포제등으로 조성된 수지 용액에 함침시키고 열고정 시켜 우수한 강신도를 갖는 전선피복용 장섬유 부직포를 제조하게 되었다.Conventionally, a film or a conventional nonwoven fabric has been used as a material for wrapping copper wire when manufacturing an electric wire. However, the film has a closed end with poor flexibility and elongation, and a general nonwoven fabric lacks strength and frequently cuts during taping. There is a problem that the number of stops in the manufacturing process of the wire is taped at high speed because it occurs. In order to improve the above problems, the long fiber nonwoven fabric for wire coating having excellent stiffness is impregnated and heat-set the polyester long fiber nonwoven fabric prepared by a conventional method in a resin solution composed of an anionic acrylic water-soluble binder, melamine resin, and an antifoaming agent. Was prepared.
본 발명에서는 함침과정에서 바인더 수용액중 아크릴 바인더의 함량이 40중량%를 초과하고 픽업율이 100%를 넘으면 수지 성분의 과다 부착으로 두께가 불균일하고, 유연성이 저하되고, 아크릴바인더의 함량이 30중량% 미만이고 픽업율이 50%미만이면 강력이 저하되는 현상이 발생하였다. 또 180℃이상의 온도에서 건조, 열처리하면 심한 황변을 일으켰고, 특히 아크릴계 수용성 바인더의 조성에 대전방지제를 첨가하지 않고 제조된 부직포는 정전기 발생이 심하여 이물의 부착이 매우 용이하였으며 수용성 아크릴바인더의 pH가 5이하 강산성으로 갈수록 동선이 변색 되므로 이런 바인더로 제조된 부직포는 전선에 사용하기 부적합 하였다.In the present invention, when the content of the acrylic binder in the binder aqueous solution exceeds 40% by weight and the pickup rate exceeds 100% in the impregnation process, the thickness is uneven due to excessive adhesion of the resin component, the flexibility is lowered, and the content of the acrylic binder is 30% If less than% and the pickup rate is less than 50%, the phenomenon that the strength is lowered. In addition, when dried and heat treated at a temperature above 180 ° C, severe yellowing occurred. Especially, non-woven fabrics prepared without adding an antistatic agent to the acrylic water-soluble binder were easily generated due to the generation of static electricity, and the pH of the water-soluble acrylic binder was 5 Since copper wire discolors with increasing acidity, nonwoven fabrics made with these binders are not suitable for use in electric wires.
본 발명은 이러한 문제점을 개선한 것으로써 고속 테이핑시 절단되지 않고 우수한 강신도를 유지하며 두께와 중량이 균일하고 모우발생 및 정전기 발생이 없는 전선피복용 폴리에스테르장섬유 부직포를 제공함을 목적으로 한다.An object of the present invention is to provide a polyester filament nonwoven fabric for electric wire coating that maintains excellent elongation without cutting during high-speed taping and has a uniform thickness and weight, and no occurrence of occurrence of static electricity.
이하 본 발명을 구체적으로 상술하면 다음과 같다.Hereinafter, the present invention will be described in detail.
폴리에틸렌테레프탈레이트 수지(고유점도 0.60~0.70)를 290℃의 온도로 용융 압축시켜 필라멘트를 형성하고 에어 이젝트를 통해 연신 배향한후 이동 스크린 벨트상에 누적 적충시켜 웨브를 형성하고 통상의 방법으로 칼렌더링과 엠보싱을 실시하여 일정한 두께와 강신도를 부여하였다. 제직된 부직포를 pH가 5이상 약산성이고 고형분이 30~40%인 아크릴계 수용성 바인더 30~40중량%, 대전방지제 1~5중량% 및 물 69~55중량%로 조성된 수지용액에 함침시켜 픽업율 50~100%로 스퀴징하고, 100~120℃로 1~5분간 건조시킨 후, 140~180℃로 0.5~3분간 열처리 하였다.Polyethylene terephthalate resin (high viscosity 0.60 ~ 0.70) is melt-compressed to a temperature of 290 ° C to form filaments, stretch-oriented through air ejection, and then accumulate and accumulate on a moving screen belt to form webs and calendering in a conventional manner. And embossing to give a constant thickness and elongation. The pick-up rate is impregnated with a woven nonwoven fabric impregnated with a resin solution composed of 30-40% by weight of an acrylic water-soluble binder having a pH of 5 or more and a solid content of 30-40%, an antistatic agent of 1-5%, and 69-55% by weight of water. Squeezed at 50 to 100%, dried at 100 to 120 ° C. for 1 to 5 minutes, and then heat-treated at 140 to 180 ° C. for 0.5 to 3 minutes.
본 발명에서 100~120℃로 건조 공정을 거친 후 140~180℃로 열처리시 온도가 높아도 처리시간이 짧아 황변 현상이 없었으며 에너지 절감효과가 크고, 180℃ 0.5분 이상의 조건에서 열처리시 강도의 증가폭은 크지 않은 것으로 나타났다. 또 140℃ 3분 이하의 조건에서 열처리를 실시할 경우 강도는 떨어졌다. 한편 100℃ 이하의 건조는 5분이상의 시간이 필요하여 생산성이 낮았고, 120℃ 1분이상의 건조조건에서는 중량 변화가 나타나지 않아 120℃ 1분으로 충분한 건조 효과를 나타내었다.In the present invention, after the drying process at 100 ~ 120 ℃ high temperature during heat treatment at 140 ~ 180 ℃ no treatment yellowing phenomenon is short, the energy saving effect is large, the strength of the heat treatment at 180 ℃ 0.5 minutes or more conditions Was not large. Moreover, when heat-processing on the conditions of 140 degrees C or less for 3 minutes, intensity fell. On the other hand, drying below 100 ° C. required a time of 5 minutes or more, and thus the productivity was low. In the drying condition of 120 ° C. or more, a change in weight did not occur, and 120 ° C. and 1 minute showed a sufficient drying effect.
본 발명에서는 또 함침 수지 용액에 대전방지제를 1중량% 이상 사용함으로써 0.5kV 이하의 마찰대전압 발생으로 제전효과에 의해 먼지등 이물의 부착이 없었으며, 5중량%를 초과하는 경우 용량에 비해 마찰대전압의 감소는 크지 않았고, 아크릴 바인더의 pH가 5 이상의 약산성 수지로 동선의 변색 또한 나타나지 않았으며 테이핑 공정시 절단되지 않는 우수한 강신도를 갖는 전선피복용 장섬유 부직포를 얻을 수 있었다.In the present invention, by using an antistatic agent in the impregnated resin solution by more than 1% by weight, there was no adhesion of foreign substances such as dust due to the antistatic effect caused by the frictional voltage of 0.5kV or less, and when it exceeds 5% by weight, The decrease in the large voltage was not large, and the acrylic acid binder had a pH of 5 or more, and the copper wire was not discolored, and a long fiber nonwoven fabric for wire coating having excellent elongation that was not cut during the taping process was obtained.
이하 실시예 및 비교예에서 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail in Examples and Comparative Examples.
실시예 및 비교예에서의 부직포가 지니는 특성, 강신도 및 유연성 등의 평가방법은 JIS L 1085, 마찰대전압은 JIS L 1094에 준하였다. 단 인장강신도 측정 폭은 3cm로 하였다.The evaluation methods such as the characteristics, elongation and flexibility of the nonwoven fabrics in Examples and Comparative Examples were JIS L 1085 and the friction voltage was in accordance with JIS L 1094. However, the tensile strength measurement width was 3 cm.
[실 시 예 1][Example 1]
폴리에틸렌테레프탈레이트 수지(고유점도 0.60~0.70)를 290℃의 온도로 용융 압출시켜 필라멘트를 형성하고 에어 이젝트를 통해 연신 배향한후 충돌판에 충돌시켜 개섬하고, 이동 스크린 벨트상에 누적 적층시켜 웨브를 형성하고 통상의 스판본딩 방식에 의해 칼렌더링과 엠보싱하여 64g/m2의 장섬유 부직포를 제조하였다. 상기 웨브를 pH가 5.2이고 고형분이 30%인 아크릴계수용성 바인더 30중량%, 대전방지제 1중량% 및 물 69중량%로 된 수지 용액에 함침시켜 픽업율 100%로 스퀴징하고, 100℃에서 3분간 건조한 후 180℃에서 0.5분간 열처리 하였다. 그 결과는 표와 같다.Polyethylene terephthalate resin (high viscosity 0.60 ~ 0.70) is melt-extruded at a temperature of 290 ° C to form filaments, stretched and oriented through air ejection, impacted by impact plates, and stacked and stacked on mobile screen belts. A long fiber nonwoven fabric of 64 g / m 2 was formed by forming and embossing by ordinary span bonding method. The web was immersed in a resin solution composed of 30% by weight of an acrylic water-soluble binder having a pH of 5.2 and a solid content of 30%, 1% by weight of an antistatic agent and 69% by weight of water, and squeezed at a pickup rate of 100%. After drying, heat treatment was performed at 180 ° C. for 0.5 minutes. The results are shown in the table.
[실 시 예 2][Example 2]
실시예1과 같이 제조된 부직포를, pH가 6.7이고 고형분이 30%인 아크릴계 수용성 바인더를 실시예1과 같은 조성으로된 수지용액에 함침시켜 실시예1과 같은 픽업율로 스퀴징하고, 후처리 하였다. 그 결과는 표와 같다.The nonwoven fabric prepared as in Example 1 was impregnated with an acrylic water-soluble binder having a pH of 6.7 and a solid content of 30% in a resin solution having the same composition as in Example 1, and squeezed at the same pick-up rate as in Example 1, followed by post-treatment. It was. The results are shown in the table.
[실 시 예 3][Example 3]
실시예1과 같이 제조된 부직포를, pH가 6.7이고 고형분이 40%인 아크릴계 수용성 바인더 40중량%, 대전방지제 1중량% 및 물 59중량%로 된 수지 용액에 함침시켜 픽업율 100%로 스퀴징하고, 120℃에서 1분간 건조한 후 140℃에서 3분간 열처리 하였다. 그 결과는 표와 같다.The nonwoven fabric prepared as in Example 1 was impregnated with a resin solution containing 40% by weight of an acrylic water-soluble binder having a pH of 6.7 and a solid content of 40%, 1% by weight of an antistatic agent, and 59% by weight of water, and squeezed at a pickup rate of 100%. Then, it was dried for 1 minute at 120 ℃ and heat-treated for 3 minutes at 140 ℃. The results are shown in the table.
[실 시 예 4][Example 4]
실시예1과 같이 제조된 부직포를, pH가 5.2이고 고형분이 30%인 아크릴계 수용성 바인더 40중량%, 대전방지제 5중량% 및 물 55중량%로 된 수지 용액에 함침시켜 픽업율 100%로 스퀴징하고, 실시예3과 같이 건조한 후 열처리 하였다. 그 결과는 표와 같다.The nonwoven fabric prepared as in Example 1 was squeezed at a pickup rate of 100% by impregnating a resin solution containing 40% by weight of an acrylic water-soluble binder having a pH of 5.2 and a solid content of 30%, an antistatic agent 5%, and a water 55% by weight. And dried as in Example 3 and then heat-treated. The results are shown in the table.
[비 교 예 1][Comparative Example 1]
실시예 1과 같이 제조된 부직포를 실시예1과 같은 수지용액에 함침, 스퀴징한 후 200℃에서 1분간 건조, 열처리 하였다. 그 결과는 표와 같다.The nonwoven fabric prepared as in Example 1 was impregnated and squeezed in the same resin solution as in Example 1, and then dried and heat treated at 200 ° C. for 1 minute. The results are shown in the table.
[비 교 예 2][Comparative Example 2]
실시예1과 같이 제조된 부직포를 고형분 50%인 아크릴 수용성 바인더 40중량%, 물 60중량%로된 수지용액에 함침시켜 실시예1과 같은 픽업율로 스퀴징하고, 190℃에서 1분간 건조, 열처리하였다. 그 결과는 표와 같다.The nonwoven fabric prepared as in Example 1 was impregnated with a resin solution of 40% by weight of an acrylic water-soluble binder having a solid content of 50% and 60% by weight of water, squeezed at the same pick-up rate as in Example 1, dried at 190 ° C. for 1 minute, Heat treatment. The results are shown in the table.
[비 교 예 3][Comparative Example 3]
실시예1과 같이 제조된 부직포를 고형분 30%인 아크릴 수용성 바인더 30중량%, 물 70중량%로된 수지 용액에 함침시켜 픽업율 50%로 스퀴징하고, 비교예 2와 같이 건조, 열처리하였다. 그 결과는 표와 같다.The nonwoven fabric prepared as in Example 1 was impregnated in a resin solution composed of 30% by weight of an acrylic water-soluble binder having a solid content of 30% and 70% by weight of water, squeezed at a pickup rate of 50%, and dried and heat treated as in Comparative Example 2. The results are shown in the table.
[비 교 예 4][Comparative Example 4]
실시예1과 같이 제조된 부직포를 pH가 3.5이고 실시예1과 같은 수지용액에 함침, 스퀴징한 후 비교예 2와 같이 건조, 열처리 하였다. 그 결과는 표와 같다.The nonwoven fabric prepared as in Example 1 was impregnated and squeezed in the same resin solution as in Example 1 with a pH of 3.5, and then dried and heat treated as in Comparative Example 2. The results are shown in the table.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140076092A (en) | 2012-12-12 | 2014-06-20 | 도레이첨단소재 주식회사 | Polyester nonweaven fiber for using an electric wire and the manufacturing method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100411769B1 (en) * | 2001-12-26 | 2003-12-24 | 주식회사 코오롱 | A self-subside type spunbond nonwoven fabric, and a process of preparing for the same |
-
1996
- 1996-07-08 KR KR1019960027467A patent/KR0180634B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140076092A (en) | 2012-12-12 | 2014-06-20 | 도레이첨단소재 주식회사 | Polyester nonweaven fiber for using an electric wire and the manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR980009585A (en) | 1998-04-30 |
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