KR20140076092A - Polyester nonweaven fiber for using an electric wire and the manufacturing method thereof - Google Patents
Polyester nonweaven fiber for using an electric wire and the manufacturing method thereof Download PDFInfo
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- KR20140076092A KR20140076092A KR1020120144243A KR20120144243A KR20140076092A KR 20140076092 A KR20140076092 A KR 20140076092A KR 1020120144243 A KR1020120144243 A KR 1020120144243A KR 20120144243 A KR20120144243 A KR 20120144243A KR 20140076092 A KR20140076092 A KR 20140076092A
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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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
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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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43825—Composite fibres
- D04H1/43828—Composite fibres sheath-core
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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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
- D04H1/5412—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sheath-core
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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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/55—Polyesters
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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
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
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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
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
본 발명은 전선용 폴리에스테르 부직포 및 그 제조방법에 관한 것으로, 보다 자세하게는 전선 제조시 구리선을 테이핑할 때 같은 중량 대비 강도가 높고 두께가 얇은 부직포를 사용하여 절단현상이 현저히 줄어들어 작업성이 현저하게 좋으며 전선 전체의 부피도 줄일 수 있는 전선용 폴리에스테르 부직포 및 그 제조 방법에 관한 것이다.
More particularly, the present invention relates to a polyester nonwoven fabric for wire and a method for producing the same, and more particularly, to a polyester nonwoven fabric for wire, Polyester non-woven fabric for wire and a method of manufacturing the same.
종래로부터 부직포는 의류용, 산업용, 토목건축용, 농업용, 위생용, 생활용 등과 같이 산업의 발달에 따라 매우 다양하게 그 용도가 확대되고 있으며, 용도별로 요구되는 특성 또한 다양하지만, 그 중 전선용은 고속으로 테이핑을 하기 때문에 작업성을 위해서는 인장강도가 매우 중요하며 전선 전체를 설계하는데 있어서 부피도 중요한 인자이므로 두께 관리도 매우 중요하다.Background Art [0002] Conventionally, nonwoven fabrics have been widely used for various applications such as clothing, industrial, civil engineering, agricultural, sanitary, and life use. The tensile strength is very important for the workability and the thickness is also important because the volume is an important factor in designing the entire wire.
통상 부직포는 단섬유 부직포와 장섬유 부직포로 나눌 수 있는데 단섬유 부직포는 스테이플 파이버를 이용하여 물리적, 화학적 결합을 통해 부직포를 형성하는 것이고 장섬유 부직포는 방사와 동시에 웹을 형성하여 물리적, 화학적 방법으로 결합시켜 부직포를 만드는 것인데, 상기 단섬유 부직포의 경우 장섬유 부직포에 비해 물성이 낮은 경향이 있어서 높은 인장강도가 요구되는 전선용 제품에는 적합하지가 않다.Nonwoven fabrics can be classified into single-spun nonwoven fabric and long-spun nonwoven fabric. Staple nonwoven fabric is a nonwoven fabric formed by physical and chemical bonding using staple fiber. Longwoven nonwoven fabric forms a web at the same time as spinning, The nonwoven fabric of the above-mentioned single-fiber nonwoven fabric tends to have a lower physical property than that of the nonwoven fabric of the long-fiber type, and thus is not suitable for a wire product requiring high tensile strength.
부직포를 만드는 방법 중 방사기술에 있어서 컨쥬게이트 방법은 코어부분과 시스부분의 고분자를 다르게 구성할 수 있으며 고분자의 종류와 배합 비율에 따라 다양한 특성의 제품을 제작할 수 있기 때문에 원하는 특성의 제품을 만들기 용이한 것으로 알려져 있다. 또한, 방사기술 중에 구금을 원형이 아닌 이형으로 만들 경우에 섬유의 특성이 변하면서 부직포의 특성도 변한다. 구금 모양을 변형시켜서 만들 경우 강도, 두께, 공기투과도 등 기본 물성이 변화하며 그에 따라 단열성, 차폐성 등의 특성도 변화한다.Among the methods of making the nonwoven fabric, the conjugation method in the spinning technique can constitute the polymer of the core part and the sheath part differently, and it is possible to produce various kinds of products according to the kind and the mixing ratio of the polymer, . In addition, the properties of the nonwoven fabric also change as the properties of the fibers change, when spinning the nonwovens into non-circular molds during spinning. When the shape of a cage is modified, the basic properties such as strength, thickness, and air permeability are changed, thereby changing properties such as heat insulation and shielding.
일반적으로 스펀 본드 부직포의 강도를 높이는 방법에는 제조 조건을 변경하여 열압착 조건을 올려 웹의 강도를 향상시키거나 섬유의 강도를 높이는 방법이 있고 후가공으로 수지처리를 하여 강도를 향상시키는 방법이 있다. 전자의 경우는 강도 향상이 크지 않으며 후자의 경우에는 제품 생산시 공정이 늘어나며 비용적인 측면에서도 경제적이지 않다.Generally, as a method of increasing the strength of the spunbond nonwoven fabric, there is a method of increasing the strength of the web or increasing the strength of the web by changing the manufacturing conditions and increasing the thermal compression conditions. In the case of the former, the improvement in strength is not significant, and in the latter case, the production process is increased and the production cost is not economical.
한편, 전선 피복용으로서 부직포의 사용을 제시한 것으로는 대한민국 등록특허 제0180634호에서 아크릴 수용성 바인더를 사용하여 부직포의 강도를 올려 전선 피복용으로 사용을 하는 것을 개시하고 있다. 하지만, 위에서 언급한 대로 후가공이 추가가 되면 공정관리가 더 어려워지고 비용도 늘어나 시간적으로나 경제적으로도 바람직하지가 않다는 문제점이 있다.
On the other hand, Japanese Patent No. 0180634 discloses the use of a nonwoven fabric for covering a wire by using an acrylic water-soluble binder to increase the strength of the nonwoven fabric and to use it for wire covering. However, as mentioned above, when the post-processing is added, the process control becomes more difficult and the cost increases, which is not preferable in terms of time and economy.
따라서, 본 발명자 등은 상기한 종래의 문제점을 해결하기 위하여 예의 연구한 결과 컨쥬게이트 방사법을 이용하여 특정 구조의 구금을 사용하여 방사한 섬유로 웹을 형성하여 만든 부직포를 통해 상기 문제점을 해결할 수 있음을 안출하여 본 발명을 완성하였다.
Accordingly, the inventors of the present invention have conducted intensive studies to solve the aforementioned problems, and as a result, the inventors of the present invention have solved the above problem by using a nonwoven fabric formed by forming a web from fibers spun using a conjugate spinning method using a conjugated spinning method. And completed the present invention.
따라서, 본 발명은 상기한 종래의 실정을 감안하여 된 것으로, 본 발명의 제일 목적은 부직포의 인장 강도를 향상시켜 전선 제작시 작업성을 우수하게 할 수 있도록 하고 부직포의 두께를 줄여 전선의 전체 부피를 줄일 수 있는 전선용 폴리에스테르 부직포를 제공하기 위한 것이다.SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is a primary object of the present invention to improve the tensile strength of the nonwoven fabric to improve the workability in the production of the wire and reduce the thickness of the nonwoven fabric, In order to provide a polyester nonwoven fabric for a wire.
본 발명의 다른 목적은 상기한 우수한 특성을 갖는 전선용 폴리에스테르 부직포를 보다 용이하게 제조할 수 있는 제조 방법을 제공하기 위한 것이다.
Another object of the present invention is to provide a manufacturing method which makes it possible to more easily produce a polyester nonwoven fabric for electric wire having the above excellent properties.
본 발명은 또한 상기한 명확한 목적 이외에 이러한 목적 및 본 명세서의 전반적인 기술로부터 이 분야의 통상인에 의해 용이하게 도출될 수 있는 다른 목적을 달성함을 그 목적으로 할 수 있다.
The present invention may also be directed to accomplish these and other objects, which can be easily derived by those skilled in the art from the overall description of the present specification, in addition to the above-mentioned and obvious objects.
상기한 목적을 달성하기 위한 본 발명의 전선용 폴리에스테르 부직포는;In order to accomplish the above object, the present invention provides a polyester nonwoven fabric for electric wire, comprising:
코어(core) 부분에 융점이 250 내지 260℃인 고융점 폴리에스테르와 시스(sheath) 부분에 융점이 200 내지 250℃인 저융점 폴리에스테르를 컨쥬게이트 방사법으로 방사하여 만든 부직포로 구금의 가로와 세로 직경이 9 내지 15배 차이 나는 구금을 사용하여 방사한 섬유로 제작된 것임을 특징으로 한다.A nonwoven fabric prepared by spinning a high melting point polyester having a melting point of 250 to 260 DEG C at the core portion and a low melting point polyester having a melting point of 200 to 250 DEG C at the sheath portion by conjugate spinning, Characterized in that it is made of fibers spun using a nipper having a diameter of 9 to 15 times the difference.
본 발명의 다른 구성에 따르면, 상기 구금의 가로와 세로 직경은 10배 차이 나는 것임을 특징으로 한다.According to another aspect of the present invention, the horizontal and vertical diameters of the nip are 10 times different.
본 발명의 또 다른 구성에 따르면, 상기 저융점 폴리에스테르의 함량은 5중량% 내지 40중량%의 비율로 됨을 특징으로 한다.According to another embodiment of the present invention, the content of the low melting point polyester is in the range of 5 wt% to 40 wt%.
본 발명의 또 다른 구성에 따르면, 상기 부직포의 결합방법은 열 압착을 이용하는 것임을 특징으로 한다.
According to another aspect of the present invention, the bonding method of the nonwoven fabric is characterized in that thermocompression bonding is used.
상기와 같이 구성되는 본 발명의 전선용 폴리에스테르 부직포는 고융점 폴리에스테르와 저융점 폴리에스테르를 컨쥬게이트 방법으로 방사하여 부직포를 제작할 때 원형이 아닌 가로 세로 직경의 비가 9배 이상 차이 나는 구금을 사용하여 강도를 개선시키고 두께를 줄여 상기한 종래의 문제를 해결할 수 있다. 따라서, 본 발명에 따른 전선용 부직포는 전선 제작시 작업성을 개선할 수 있는 산업상 유용한 발명이다.
The nonwoven fabric for electric wire of the present invention having the above-described structure is obtained by spinning a high-melting polyester and a low-melting polyester by a conjugate method to prepare a nonwoven fabric having a ratio of a transverse diameter So that the strength can be improved and the thickness can be reduced to solve the above-mentioned conventional problems. Accordingly, the wire nonwoven fabric according to the present invention is an industrially advantageous invention that can improve the workability in wire production.
도 1은 본 발명의 실시형태에 따라 컨쥬게이트 방사법으로 방사된 섬유의 단면도를 개략적으로 나타낸 개략단면도이고,
도 2는 본 발명의 실시형태에 따라 열압착을 통해 제조되는 부직포 제조 공정의 모식도이다.BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic cross-sectional view schematically illustrating a cross-section of a fiber spun by conjugated spinning according to an embodiment of the present invention,
2 is a schematic view of a nonwoven fabric manufacturing process manufactured through thermocompression according to an embodiment of the present invention.
이하, 본 발명을 첨부도면을 참고로 하여 바람직한 실시형태에 의하여 보다 자세하게 설명한다.
Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
도 1은 본 발명의 실시형태에 따라 컨쥬게이트 방사법으로 방사된 섬유의 단면도를 개략적으로 나타낸 개략단면도이고, 도 2는 본 발명의 실시형태에 따라 열압착을 통해 제조되는 부직포 제조 공정의 모식도이다.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view schematically illustrating a cross-sectional view of a fiber spun by a conjugated spinning method according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a nonwoven fabric manufacturing process manufactured by thermocompression bonding according to an embodiment of the present invention.
본 발명에서 사용될 수 있는 폴리에스테르 고분자는 고유점도 값이 0.5 내지 0.7 정도의 것을 사용하는 것이 바람직하며, 고융점 폴리에스테르의 경우 융점이 250℃ 내지 260℃이며, 저융점 폴리에스테르의 경우 중합시 테레프탈릭에시드(TPA)에 이소프탈릭에시드(IPA)를 첨가하여 융점을 저하시킨 것으로 200 내지 250℃ 정도의 융점을 가지는 것을 사용하며, 상기 도 1에 도시된 바와 같이, 고융점 폴리에스테르는 코어부분(1-1)을 형성하고, 상기 저융점 폴리에스테르는 시스부분(1-2)을 형상하도록 한다. 상기와 같이 구성되는 본 발명에 따른 고융점 폴리에스테르는 섬유의 강도를 유지하는 역할을 하며 저융점 폴리에스테르는 열융착이 쉽게 되어 강도를 향상시키는 역할을 한다.The polyester polymer that can be used in the present invention preferably has an intrinsic viscosity value of about 0.5 to 0.7, preferably has a melting point of 250 to 260 deg. C in the case of a high melting polyester and a terephthalate (IPA) is added to ric acid TPA to lower the melting point and has a melting point of about 200 to 250 ° C. As shown in FIG. 1, the high melting point polyester has a core portion 1-1), and the low-melting-point polyester forms a sheath portion (1-2). The high melting point polyester according to the present invention configured as described above plays a role of maintaining the strength of the fiber and the low melting point polyester has a role of improving the strength by facilitating the heat fusion.
본 발명의 바람직한 실시형태에 따르면, 본 발명의 전선용 부직포의 제조는, 도 2에 도시된 바와 같이, 중합체용 익스트루더는 고융점 폴리에스테르 익스트루더(2-1)와 저융점 폴리에스테르 익스트루더(2-2)로 구성되어 지며, 마스터배치는 저융점 폴리에스테르와 함께 용융되어 혼련 후 스핀블록으로 이동한다. 스핀블록에서는 컨쥬게이트 방사 구금을 이용하여 코어부분에 고융점 폴리에스테르를 방사하고 시스 부분에 저융점 폴리에스테르를 방사하여 이형 단면의 섬유를 형성하도록 컨쥬게이트 방사(2-3)하게 된다. 이때, 사용하는 방사 구금은 가로와 세로의 비가 9 내지 15배 차이 나는 것을 사용하여야 하고, 바람직하기로는 10배 차이 나는 것을 사용할 수 있다.According to a preferred embodiment of the present invention, in the production of the wire nonwoven fabric of the present invention, as shown in Fig. 2, the extruder for polymer comprises a high melting polyester extruder (2-1) and a low melting polyester Extruder 2-2, and the master batch is melted together with the low-melting-point polyester and moved to the spin block after kneading. In the spin block, conjugate spinning (2-3) is carried out by spinning a high-melting-point polyester on the core portion and spinning a low-melting-point polyester on the sheath portion using a conjugate spinneret. At this time, the spinneret to be used should have a width-to-height ratio of 9 to 15 times, preferably 10 times.
이렇게 컨쥬게이트 방사(2-3)된 이형단면 섬유는 퀀칭을 통해 냉각을 시키고 이젝터를 거치면서 연신을 하고 충돌판에 충돌시켜 필라멘트를 분산시키면서 이동식 컨베이어(2-4) 위에 랜덤으로 뿌려지게 만든다. 이렇게 뿌려진 필라멘트는 본딩율이 5 내지 30%인 요철형 롤과 매끄러운 롤 사이에서 열과 압력으로 열 압착(2-5)되어 웹을 형성하게 되고, 전선용 부직포로 와인더(2-6)에 권취되어 진다.
The conjugate spinning fibers 2-3 are cooled by quenching, stretched while passing through the ejector, collide with the impingement plate, and scatter the filaments, which are randomly scattered on the movable conveyor 2-4. The filament thus sprayed is thermally pressed (2-5) by heat and pressure between a concave-convex roll having a bonding rate of 5 to 30% and a smooth roll to form a web, and is wound around the winder 2-6 with a non- .
이하, 본 발명은 다음의 실시예에 의해 보다 자세하게 설명되어 진다. 그러나, 아래의 실시예는 본 발명을 단지 상세하기 설명하기 위한 것이며 본 발명의 범주를 한정하기 위함이 아님은 물론이다.Hereinafter, the present invention will be described in more detail by the following examples. It should be understood, however, that the following examples are illustrative of the present invention only and are not intended to limit the scope of the present invention.
아래의 실시예 및 비교예에 의해 각각 제조된 부직포 특성의 측정과 평가는 다음과 같은 방법으로 분석하였다. The measurement and evaluation of the characteristics of the nonwoven fabric, which were respectively produced by the following examples and comparative examples, were analyzed in the following manner.
(1) 인장강도, 신도: 미국의 유나이티드(united) 사의 인장강도 측정기로 시료폭 5cm 시료장 10cm의 시료를 준비하여 300mm/min의 속도로 인장강도와 신도를 측정하였다.(1) Tensile Strength and Shrinkage: A tensile strength and elongation were measured at a speed of 300 mm / min by preparing a sample having a sample width of 5 cm and a sample length of 10 cm with a tensile strength meter of United, USA.
(2) 두께: 두께측정기를 이용하여 전폭에 걸쳐 5cm 단위로 측정한 후 평균 값을 구하였다.(2) Thickness: The thickness was measured in units of 5 cm over the entire width using a thickness gauge, and an average value was obtained.
(3) 공기투과도 : 38cm2의 시료에 125pa의 공기압을 유지시키면서 공기투과도를 측정하였다.
(3) Air permeability: Air permeability was measured while maintaining air pressure of 125 ppa on a sample of 38 cm 2 .
실시예 1Example 1
고유점도가 0.65인 고융점 폴리에틸렌테레프탈레이트(이하, "PET"라 함) 칩과 고유점도가 0.66인 저융점 PET를 드라이어를 통해 수분율을 100ppm 이하로 낮추고 컨쥬게이트 방사법으로 고융점 PET와 저융점 PET의 비율을 85:15으로 방사한다. 이때 사용하는 방사 구금은 가로 세로의 비가 10인 구금을 사용하였다. 방사한 부직포는 컨베이어에 랜덤으로 쌓이게 되고 단위 중량이 40g/㎡ 이 되도록 토출량과 컨베이어 속도를 조절한다. 제조된 웹을 요철형 롤과 매끄러운 롤 사이를 통과시켜 온도와 압력을 주어 형태안정성을 부여한다.
(Hereinafter referred to as "PET") chip having an intrinsic viscosity of 0.65 and a low-melting-point PET having an intrinsic viscosity of 0.66 were lowered to a water content of 100 ppm or less through a drier, and a high melting point PET and a low melting point PET To 85:15. At this time, the spinning detergent used was a detergent having a ratio of 10 in length and width. The discharged nonwoven fabric is randomly accumulated on the conveyor and the discharge amount and the conveyor speed are controlled so that the unit weight is 40 g / m 2. The produced web is passed between a concavo-convex roll and a smooth roll, and temperature and pressure are applied to give form stability.
실시예 2 Example 2
단위 중량이 20g/㎡ 이 되도록 하는 것 이외의 기타 생산조건은 실시예 1과 동일하게 하여 부직포를 제조하였다.
A nonwoven fabric was produced in the same manner as in Example 1 except that the unit weight was 20 g / m 2.
비교예 1Comparative Example 1
원형 구금을 사용하여 방사를 한 것 이외 생산조건은 실시예 1과 동일하게 하여 부직포를 제조하였다.
A nonwoven fabric was produced in the same manner as in Example 1 except that the spinning was carried out using a circular nip.
비교예 2Comparative Example 2
원형 구금을 사용하여 방사를 한 것 이외 생산조건은 실시예 2과 동일하게 하여 부직포를 제조하였다.
A nonwoven fabric was produced in the same manner as in Example 2 except that the spinning was carried out using a circular nip.
(kgf/5cm)The tensile strength
(kgf / 5 cm)
(%)Shindo
(%)
상기 표 1에서 볼 수 있듯이, 본 발명에 따라 가로와 세로 직경의 비가 10인 구금을 사용하여 컨쥬게이트 방사법으로 제작한 부직포의 경우 인장 강도가 증가하였으며 두께도 현저히 감소한 것을 확인할 수 있었다.
As can be seen from Table 1, according to the present invention, it was confirmed that the tensile strength and the thickness of the nonwoven fabric produced by the conjugate spinning method using the spinneret having the ratio of the width to the length of 10 were significantly decreased.
1-1 : 코어 부분
1-2 : 시스 부분
2-1 : 저융점 폴리에스테르 익스트루더
2-2 : 고융점 폴리에스테르 익스트루더
2-3 : 컨쥬게이트 방사
2-4 : 컨베이어
2-5 : 열 압착
2-6 : 와인더1-1: core portion
1-2: sheath portion
2-1: Low melting point polyester extruder
2-2: High melting point polyester extruder
2-3: Conjugate emission
2-4: Conveyor
2-5: Thermocompression
2-6: Winder
Claims (4)
A non-woven fabric prepared by spinning a high melting point polyester having a melting point of 250 ° C. or higher and a low melting point polyester having a melting point of 230 ° C. or lower in a sheath portion by a conjugate spinning method in a core portion, Wherein the polyester nonwoven fabric is made of fibers.
The nonwoven fabric for electric wire according to claim 1, wherein the fiber having a flatness ratio of at least 3 times is made of fiber spun using a spinneret having a diameter of 3 times or more and a diameter of 3 times or more.
The polyester nonwoven fabric for electric wire according to claim 1, wherein the content of the low melting point polyester is 5 wt% to 40 wt%.
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| KR20160019583A (en) * | 2014-08-11 | 2016-02-22 | 도레이첨단소재 주식회사 | Polyester nonwoven fabric and manufacturing method thereof |
| KR20170001319A (en) * | 2015-06-26 | 2017-01-04 | 코오롱인더스트리 주식회사 | Dimensional Stable Non-woven Fabric, and Method for Manufacturing the Same |
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| KR20210147579A (en) * | 2020-05-29 | 2021-12-07 | 도레이첨단소재 주식회사 | Core/sheath type fiber, non-woven fabric including the fiber, laminate of the non-woven fabric, and article including the laminate |
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