KR101252395B1 - Polyester nonwoven fabric having an improved stability for ultraviolet and preparing method thereof - Google Patents

Polyester nonwoven fabric having an improved stability for ultraviolet and preparing method thereof Download PDF

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KR101252395B1
KR101252395B1 KR1020110109895A KR20110109895A KR101252395B1 KR 101252395 B1 KR101252395 B1 KR 101252395B1 KR 1020110109895 A KR1020110109895 A KR 1020110109895A KR 20110109895 A KR20110109895 A KR 20110109895A KR 101252395 B1 KR101252395 B1 KR 101252395B1
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melting point
polyester
nonwoven fabric
acid ester
weight
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KR1020110109895A
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Korean (ko)
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김연수
박서진
김동욱
토미오카
이현우
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도레이첨단소재 주식회사
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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
    • D04H1/4326Condensation or reaction polymers
    • D04H1/435Polyesters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/20Compounding polymers with additives, e.g. colouring
    • C08J3/22Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/28Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30Conjugate filaments; Spinnerette packs therefor
    • D01D5/34Core-skin structure; Spinnerette packs therefor
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • D01F1/106Radiation shielding agents, e.g. absorbing, reflecting agents
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/54Non-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
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04Fibres 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]
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/22Physical properties protective against sunlight or UV radiation
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00Industrial
    • D10B2505/20Industrial for civil engineering, e.g. geotextiles
    • D10B2505/204Geotextiles

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Multicomponent Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

PURPOSE: A polyester non-woven fabric which is stable to UV rays and a method for fabricating the same are provided to reduce product strength and to minimize production cost. CONSTITUTION: A polyester non-woven fabric which is stable to UV rays comprises a step of spinning a high melting point polyester with a melting point of 250-260 deg. C at a core part and a low melting point polyester with a melting point of 250-250 deg. C at a sheath part(1-1) by a conjugate radiation method. The sheath part has 5-20 wt% of a master batch containing 10-25 wt% of one or more UV stabilizing agents which are selected from benzothiazinone, salicylic acid esters, an acrylonitrile substituent, an organic nickel compound, salicylic acid ester, a cinnamic acid ester derivative, resorcinol monobenzoate, oxanylide, hydroxybenzoic acid ester, and HALS(Hindered Amine Light Stabilizer)-based compounds.

Description

자외선에 안정한 폴리에스터 부직포 및 그 제조방법{Polyester nonwoven fabric having an improved stability for ultraviolet and preparing method thereof}Polyester nonwoven fabric having an improved stability for ultraviolet and preparing method

본 발명은 자외선에 안정한 폴리에스터 부직포 및 그 제조방법에 관한 것으로 보다 자세하게는 토목용, 건축용, 방음용, 하우스래핑용으로 사용되는 부직포의 내후성을 향상하기 위해 부직포 제조시 자외선 안정제를 첨가하여 야외에서 장시간 사용에도 고분자가 분해되지 않아 내구성이 우수한 폴리에스터 부직포 및 그 제조 방법에 관한 것이다.
The present invention relates to a polyester nonwoven fabric that is stable to ultraviolet rays and to a method of manufacturing the same. More specifically, to improve weather resistance of a nonwoven fabric used for civil engineering, construction, sound insulation, and house lapping, an ultraviolet stabilizer may be added in the manufacture of a nonwoven fabric in an outdoor environment. The present invention relates to a polyester nonwoven fabric having excellent durability since a polymer is not decomposed even for a long time of use, and a method of manufacturing the same.

부직포의 용도는 의류용, 산업용, 토목건축용, 농업용, 위생용, 생활용 등 매우 다양하다. 이러한 용도별로 다양한 특성이 요구되며 이러한 부직포 중에 특히 토목건축용이나 농업용으로 사용할 때에는 주로 야외에서 사용되기 때문에 자외선에 의해 분해가 되어 원래의 특성을 잃어 버리면 사용상 문제점이 생기기 때문에 자외선에 안정한 특성이 요구된다.The use of nonwoven fabrics is very diverse, such as clothing, industrial, civil construction, agriculture, hygiene, life. Various characteristics are required for each of these uses. Especially, when the nonwoven fabric is used for civil construction or agriculture, it is mainly used outdoors, so it is decomposed by ultraviolet rays and loses its original characteristics.

부직포 중에는 단섬유 부직포와 장섬유 부직포가 있다. 단섬유 부직포는 단섬유를 이용하여 화학적 결합, 물리적 결합, 열압착 등의 방법으로 결합시켜 부직포를 만드는 것이고 장섬유 부직포는 방사와 동시에 섬유를 불규칙적으로 정렬하여 결합시켜 부직포를 만드는 것으로 단섬유 부직포에 비해 물성이 좋은 장점을 가지고 있다.Among the nonwoven fabrics are short fiber nonwoven fabrics and long fiber nonwoven fabrics. Short fiber nonwoven fabrics are made of non-woven fabrics by chemical bonding, physical bonding, thermocompression bonding, etc., using short fibers to make nonwoven fabrics. Compared to the physical properties are good.

부직포를 만드는 방법 중 방사기술에 있어서 컨쥬게이트 방법은 코어부분과 시스부분의 고분자를 다르게 구성할 수 있으며 그 고분자의 특성에 따라 원하는 특성을 가지는 다양한 제품이 만들어질 수 있기 때문에 활용부분에 있어서 다양하게 적용이 가능하다. Conjugation method in the spinning technique of the nonwoven fabric can be composed of the polymer of the core portion and the sheath portion differently, and various products having the desired characteristics can be made according to the characteristics of the polymer, so that in various applications Application is possible.

자외선 안정제는 자외선 흡수제, 퀀차, 라디칼 스케빈저, 자외선 산란제 등으로 나눌 수 있으며 1)자외선 흡수제는 특정파장의 자외선을 흡수하여 열에너지로 변화시키는 기능을 하며 벤조페논계와 벤조트리아졸계 화합물이 대표적이고 2)퀀차는 자외선에 의해 활성화된 분자와 상호작용하여 인광, 형광, 열에너지를 방출하는 기능을 하며, 3)라디칼 스케빈저는 자외선에 의해 분자가 분해되면서 생성된 라디칼을 소멸시켜 연쇄적인 분해를 억제하는 기능을 가지는 것으로 HALS라고 불리고, 4)자외선 산란제의 경우는 무기물에 의한 광의 표면반사, 산란을 이용하는 것으로 산화티탄, 산화아연, 지르코늄산화물, 안티몬 산화물이 대표적이다.UV stabilizers can be classified into UV absorbers, sequencing, radical scavengers, and UV scattering agents. 2) the quanta interacts with molecules activated by ultraviolet light to emit phosphorescence, fluorescence, and thermal energy. 3) radical scavengers dissipate radicals generated as the molecules are decomposed by ultraviolet light. It is called HALS because it has a function of suppressing. 4) In the case of the ultraviolet scattering agent, titanium oxide, zinc oxide, zirconium oxide, and antimony oxide are used by using surface reflection and scattering of light by inorganic materials.

일반적으로 고분자는 자외선을 받아 열화되는 특성을 가지고 있어 내광성을 향상시키는 여러 가지 방법들이 사용되고 있다. 일반적으로 폴리에틸렌테레프탈레이트(이하 "PET"라 칭함)의 내광성을 좋게 하기 위한 방법으로는 PET보다 내광성이 좋은 폴리에틸렌나프탈레이트(PEN)을 혼용하여 사용하거나 자외선 안정제가 함유되어 있는 마스터 배치를 사용하거나 자외선 안정제를 직접 첨가하는 방법이 사용되고 있다.In general, polymers have a property of deterioration due to ultraviolet rays, and various methods of improving light resistance have been used. In general, a method for improving the light resistance of polyethylene terephthalate (hereinafter referred to as "PET") is a mixture of polyethylene naphthalate (PEN) having better light resistance than PET, a master batch containing UV stabilizer, or UV The method of adding a stabilizer directly is used.

이렇게 자외선 안정제를 첨가는 방법을 사용하여 제품을 제작할 경우 높은 온도에서는 자외선 안정제 화합물이 분해될 염려가 있고 자외선 안정성을 부여하기 위해 다량을 투입할 경우 강도가 저하되는 단점이 있으며 제조단가가 상승하는 문제점이 발생한다. 예를 들어, 대한민국 공개특허공보 제2009-0072402에서는 다양한 자외선 안정제를 함유하여 자외선에 의한 열화를 방지하고 있으나 자외선 안정제의 총 중량이 2중량% 이상에서는 강도가 떨어지는 단점이 있어 안정제의 함유량을 더 증가시키지 못하기 때문에 자외선에 대한 저항성이 한계가 있고, 또한 대한민국 공개특허공보 제2010-0128893에서는 자외선 안정제를 5중량%까지 사용하고 있으나 단섬유 부직포의 특성상 강도가 떨어지고 보풀이 많이 일어나는 단점을 가지고 있다.
When manufacturing a product using the method of adding the UV stabilizer, there is a concern that the UV stabilizer compound may be decomposed at a high temperature, and the strength decreases when a large amount is added to impart UV stability, and the manufacturing cost increases. This happens. For example, the Republic of Korea Patent Publication No. 2009-0072402 contains a variety of ultraviolet stabilizers to prevent deterioration due to ultraviolet rays, but the strength is lowered when the total weight of the UV stabilizer is more than 2% by weight, further increasing the content of the stabilizer Since it is not possible to limit the resistance to ultraviolet rays, and also the Republic of Korea Patent Publication No. 2010-0128893 uses a UV stabilizer up to 5% by weight, but the strength of the short-fiber nonwoven fabric has a disadvantage in that a lot of strength and fluff occurs.

따라서, 본 발명자 등은 상기한 종래의 문제점을 해결하기 위하여 예의 연구한 결과 특정 구조의 섬유를 사용하고 안정제를 일 층에만 부가하므로 상기한 문제점을 해결할 수 있음을 안출하여 본 발명을 완성하였다.
Accordingly, the present inventors have completed the present invention by contemplating that the above problems can be solved by using a fiber of a specific structure and adding a stabilizer to only one layer as a result of intensive studies to solve the above-described conventional problems.

특허문헌 1: 대한민국 공개특허공보 제2009-0072402호Patent Document 1: Republic of Korea Patent Publication No. 2009-0072402 특허문헌 2: 대한민국 공개특허공보 제2010-0128893호Patent Document 2: Republic of Korea Patent Publication No. 2010-0128893

따라서, 본 발명은 상기한 종래의 실정을 감안하여 된 것으로, 본 발명의 제일 목적은 자외선 안정제를 효과적으로 첨가하여 내광성을 향상시켜 토목용, 건축용, 농업용, 하우스 래핑용 등 야외에서 사용하기에 적합하도록 물성을 유지하면서 기존 제품에 비해 강도를 떨어뜨리지 않고 제조단가를 최소화할 수 있는 자외선에 안정한 폴리에스터 부직포를 제공하기 위한 것이다.Accordingly, the present invention has been made in view of the above-described conventional situation, and the first object of the present invention is to effectively add UV stabilizers to improve light resistance to be suitable for outdoor use such as civil engineering, building construction, agriculture, house wrapping, etc. It is to provide a polyester non-woven fabric that is stable to ultraviolet rays that can minimize manufacturing cost without compromising strength compared to existing products while maintaining physical properties.

본 발명의 다른 목적은 상기한 특성을 갖는 자외선에 안정한 폴리에스터 부직포를 보다 용이하게 제조할 수 있는 제조 방법을 제공하기 위한 것이다.
Another object of the present invention is to provide a production method which can more easily produce a polyester nonwoven fabric that is stable to ultraviolet rays having the above-described characteristics.

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 aim to achieve, in addition to the above-mentioned specific objects, other objects that can be readily derived by one of ordinary skill in the art from this and the overall description of this specification.

상기한 목적을 달성하기 위한 본 발명의 자외선에 안정한 폴리에스터 부직포는;Polyester nonwoven fabric stable to the ultraviolet ray of the present invention for achieving the above object;

코어 부분에 융점이 250 내지 260℃인 고융점 폴리에스터와 시스부분에 융점이 200 내지 250℃인 저융점 폴리에스터를 컨쥬게이트 방사법으로 방사하여 만든 부직포로 상기 시스 부분에 자외선 안정제를 전체 중량의 0.5중량% 내지 5중량%를 첨가한 것임을 특징으로 한다.High melting point polyester having melting point of 250 to 260 ° C in the core part and low melting point polyester having melting point of 200 to 250 ° C in the sheathing part. It is characterized by the addition of 5% by weight to 5% by weight.

본 발명의 다른 구성에 따르면, 상기 저융점 폴리에스터의 함량은 5중량% 내지 40중량%의 비율로 만들어진 것을 특징으로 한다.According to another configuration of the present invention, the content of the low melting polyester is characterized in that it is made in a ratio of 5% by weight to 40% by weight.

본 발명의 또 다른 구성에 따르면, 상기 부직포의 결합방법은 열압착 또는 니들펀칭을 이용하는 것임을 특징으로 한다.According to another configuration of the present invention, the method of joining the nonwoven fabric is characterized in that it uses a thermocompression or needle punching.

본 발명의 또 다른 구성에 따르면, 상기 자외선 안정제는 벤조트리아졸계, 벤조자지논계, 살리실산에스테르계, 히드록시 벤조페놀계, 아크릴로 니트릴 치환체, 유기 니켈 화합물, 살리실산 에스테르계, 신남산 에스테르 유도체, 레조르시놀 모노벤조에이트, 옥사닐리드, 하이드록시벤조산 에스테르, HALS(Hindered Amine Light Stabilizer)계의 화합물임을 특징으로 하다.
According to another configuration of the present invention, the ultraviolet stabilizer is benzotriazole-based, benzozazinone-based, salicylic acid ester-based, hydroxy benzophenol-based, acrylonitrile substituent, organic nickel compound, salicylic acid ester-based, cinnamic acid ester derivative, rezo Lecinol monobenzoate, oxanilide, hydroxybenzoic acid ester, HALS (Hindered Amine Light Stabilizer) is characterized in that the compound.

상기와 같이 구성되는 본 발명의 자외선에 안정한 폴리에스터 부직포는 고융점 폴리에스터와 저융점 폴리에스터를 컨쥬게이트 방법으로 방사하여 부직포를 제작할 때 시스 부분에 자외선 안정제를 부가하여 자외선 안정성을 부여하며 코어부분은 첨가물이 없이 방사하여 강도를 유지하도록 하고, 시스 부분에 저융점 폴리에스터를 사용하여 낮은 온도에서 방사를 시킴으로써 자외선 안정제의 열에 의한 분해 문제를 해결하여 상기한 종래의 문제점을 해결하였다. 따라서, 본 발명에 따른 자외선에 안정한 폴리에스터 부직포는 야외에서 사용할 때 태양광에 의해 열화를 방지하는 특성을 가지는 산업상 유용한 발명이다.
The polyester nonwoven fabric which is stable to the ultraviolet rays of the present invention configured as described above gives a UV stability by adding an ultraviolet stabilizer to the sheath part when producing a nonwoven fabric by spinning a high melting point polyester and a low melting point polyester by a conjugate method. The above conventional problem is solved by solving the thermal decomposition problem of the UV stabilizer by spinning at low temperature by using a low melting polyester on the sheath portion to maintain the strength by spinning without silver additives. Accordingly, the ultraviolet non-stable polyester nonwoven fabric according to the present invention is an industrially useful invention having the property of preventing degradation by sunlight when used outdoors.

도 1은 본 발명의 실시형태에 따라 컨쥬게이트 방사법으로 방사된 섬유의 단면도를 나타내고,
도 2는 본 발명의 실시형태에 따라 열압착을 통해 제조되는 부직포 제조 공정의 모식도이고,
도 3은 본 발명의 일 실시형태에 따라 실행되는 니들 펀치를 이용한 부직포 제조 공정의 모식도이다.
1 shows a cross-sectional view of fibers spun by conjugate spinning in accordance with an embodiment of the invention,
Figure 2 is a schematic diagram of a nonwoven fabric manufacturing process produced through thermocompression bonding according to an embodiment of the present invention,
It is a schematic diagram of the nonwoven fabric manufacturing process using the needle punch performed by one Embodiment of this invention.

이하, 본 발명은 첨부도면을 참고로 하여 바람직한 실시형태에 의하여 보다 자세하게 설명한다.
Hereinafter, the present invention will be described in more detail by preferred embodiments with reference to the accompanying drawings.

도 1은 본 발명의 실시형태에 따라 컨쥬게이트 방사법으로 방사된 섬유의 단면도를 나타내고, 도 2는 본 발명의 실시형태에 따라 열압착을 통해 제조되는 부직포 제조 공정의 모식도이고, 도 3은 본 발명의 일 실시형태에 따라 실행되는 니들 펀치를 이용한 부직포 제조 공정의 모식도이다.1 shows a cross-sectional view of a fiber spun by conjugate spinning in accordance with an embodiment of the invention, FIG. 2 is a schematic diagram of a nonwoven fabric manufacturing process produced by thermocompression in accordance with an embodiment of the invention, and FIG. It is a schematic diagram of the nonwoven fabric manufacturing process using the needle punch performed according to one Embodiment of the.

본 발명에서 사용될 수 있는 폴리에스터 고분자는 고유점도 값이 0.5~0.7정도의 것을 사용하는 것이 바람직하며, 고융점 폴리에스터의 경우 융점이 250℃ 내지 260℃이며, 저융점 폴리에스터의 경우 중합시 테레프탈릭에시드(TPA)에 이소프로필알코올(IPA)를 첨가하여 융점을 저하시킨 것으로 200 내지 250℃ 정도의 융점을 가지는 것을 사용하며, 상기 도 1에 도시된 바와 같이, 고융점 폴리에스터는 코어부분(1-3)을 형성하고, 상기 저융점 폴리에스터는 시스부분(1-1)을 형상하도록 하며, 자외선 안정제(1-2)는 상기 시스부분(1-1)에 부가되며 그의 양은 전체 고분자 대비 0.5 내지 5wt%정도가 적당하며 첨가하는 방식으로는 마스터배치 형태로 첨가하는 방법, 직접 첨가하는 방법 등이 있으며, 분산성을 좋게 하기 위해서는 마스터배치 형태로 첨가하는 방법이 가장 유리하다. Polyester polymer that can be used in the present invention is preferably used in the intrinsic viscosity value of about 0.5 ~ 0.7, the melting point of the high melting point polyester is 250 ℃ to 260 ℃, in the case of low melting polyester polyester terephthalate The melting point is lowered by adding isopropyl alcohol (IPA) to lycide (TPA), which has a melting point of about 200 to 250 ° C. As shown in FIG. 1, the high melting point polyester has a core portion ( 1-3), the low-melting polyester is to form the sheath portion (1-1), the ultraviolet stabilizer (1-2) is added to the sheath portion (1-1) and the amount of the total polymer 0.5 to 5wt% is suitable, and the method of adding is in the form of a master batch, the method of adding directly, etc. In order to improve the dispersibility, the method of adding in the form of a master batch is most suitable. Do it.

상기 마스터배치 칩은 UV안정제가 10 내지 25중량% 정도 함유된 것이 바람직하며 마스터배치 칩은 전체 중량 대비 5 내지 20중량% 정도를 사용하는 것이 바람직하다. 마스터배치와 원료와의 혼합하는 방법은 사이로에서 주원료가 공급되어 드라이어를 거쳐 수분율을 낮춘 후에 피드 호퍼에서 익스트루더로 공급될 때 마스터배치를 첨가하여 용융될 때 혼련되도록 하는 것이다. 이때 마스터배치의 양이 소량일 경우 건조 공정을 거치지 않고도 바로 투입이 가능하다.The master batch chip is preferably contained about 10 to 25% by weight UV stabilizer, the master batch chip is preferably used 5 to 20% by weight relative to the total weight. The method of mixing the masterbatch with the raw material is to feed the main batch through the dryer, lower the moisture content through the dryer, and then add the masterbatch when it is fed from the feed hopper to the extruder so that it is kneaded when it is melted. At this time, if the amount of the masterbatch is a small amount can be added immediately without going through the drying process.

상기 자외선 안정제의 경우 전체 고분자 중량의 0.5중량% 이하로 투입할 경우 자외선에 대한 저항성이 미약하여 효과가 크게 나타나지 않으며, 반대로 5% 이상 사용할 경우에는 섬유의 방사성에 영향을 미치고 자외선 안정제에 의해 강도가 저하되며 원가 또한 상승하는 원인이 되어 바람직하지 않다.In the case of the UV stabilizer is less than 0.5% by weight of the total weight of the polymer, the effect of the resistance to ultraviolet light is not very significant, and when used more than 5% affects the radioactivity of the fiber and the strength by the UV stabilizer It is lowered and the cost also increases, which is undesirable.

익스트루더는, 도 2에 도시된 바와 같이, 고융점 폴리에스터 익스트루더(2-1)과 저융점 폴리에스터 익스트루더(2-2)로 구성되어 있으며, 마스터배치는 저융점 폴리에스터와 함께 용융되어 혼련 후 스핀블록으로 이동한다. 스핀블록에서는 컨쥬게이트 방사구금을 이용하여 코어부분에 고융점 폴리에스터를 방사하고 시스부분에 저융점 폴리에스터를 방사하여 이형 단면의 섬유를 형성하게 된다. The extruder, as shown in Fig. 2, is composed of a high melting point polyester extruder 2-1 and a low melting point polyester extruder 2-2, the masterbatch having a low melting point polyester It melts with and moves to the spin block after kneading. In the spin block, conjugate spinnerets are used to spun high melting point polyester onto the core portion and low melting point polyester onto the sheath portion to form fibers having a heteromorphic cross section.

이렇게 방사된 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 열압착(2-5)되거나 이 공정을 거치지 않고 후공정에서 니들 펀칭공법으로 섬유를 교락하여 웹을 형성하게 한다.The spun shaped cross-section fibers are cooled through quenching, stretched through the ejector, and collided with the impingement plate to disperse the filaments and scatter them randomly on the mobile conveyor 2-4. The sprinkled filaments are thermally compressed (2-5) by heat and pressure between uneven rolls having a bonding rate of 5 to 30% and smooth rolls, or entangle the fibers by needle punching in a later step without going through this process to form a web. Let's do it.

마스터배치 칩에 들어가는 자외선 안정제로는 벤조트리아졸, 벤조자지논, 살리실산에스테르계, 히드록시 벤조페놀계, 아크릴로 니트릴 치환체, 유기 니켈 화합물, 살리실산 에스테르, 신남산 에스테르 유도체, 레조르시놀 모노벤조에이트, 옥사닐리드, 하이드록시벤조산 에스테르, HALS(Hindered Amine Light Stabilizer)계 등의 화합물이 사용될 수 있다.
UV stabilizers in the masterbatch chip include benzotriazole, benzozazinone, salicylic acid esters, hydroxy benzophenols, acrylonitrile substituents, organic nickel compounds, salicylic acid esters, cinnamic acid ester derivatives, resorcinol monobenzoate , Compounds such as oxanilide, hydroxybenzoic acid ester, and HLS (Hindered Amine Light Stabilizer) system may be used.

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. The invention is illustrated 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 united 사의 인장강도 측정기로 시료폭 10cm 시료장 7.5cm의 시료를 준비하여 300mm/min의 속도로 인장강도와 신도를 측정하였다.(1) Tensile strength, elongation: Tensile strength and elongation were prepared by using a tensile strength tester of united company in the United States with a sample width of 10 cm and a sample length of 7.5 cm.

(2) 내후성: Weater-O-mether설비를 이용(Light source :Xenon Arc, Black Panel Temp: 63℃, 상대습도 : 50%, 조사량 : 0.35W/㎡, Cycle : Spray 18min/Light 102min) 하여 1800hr 조사 후의 강도 변화를 측정하였다.
(2) Weather resistance: 1800hr by using Weater-O-mether (Light source: Xenon Arc, Black Panel Temp: 63 ℃, Relative Humidity: 50%, Irradiation: 0.35W / ㎡, Cycle: Spray 18min / Light 102min) The intensity change after irradiation was measured.

실시예 1 Example 1

고유점도가 0.65인 고융점 폴리에틸렌테레프탈레이트 칩과 고유점도가 0.66인 저융점 PET를 드라이어를 통해 수분율을 100ppm 이하로 낮추고 익스트루더에서 용융시킬 때 저융점 PET 부분에 UV안정제가 20%들어간 마스터배치 칩을 전체중량 대비 10% 첨가하여 컨쥬게이트 방사법으로 고융점 PET와 저융점 PET의 비율을 80:20으로 방사한다. 방사한 부직포는 컨베이어에 랜덤으로 쌓이게 되고 단위 중량이 150g/㎡ 이 되도록 토출량과 컨베이어 속도를 조절한다. 제조된 웹을 니들 펀칭기를 이용하여 섬유를 교락시켜 형태안정성을 부여한다.
Masterbatch containing 20% UV stabilizer in low melting PET part when high melting point polyethylene terephthalate chip with intrinsic viscosity of 0.65 and low melting point PET with intrinsic viscosity of 0.66 are lowered to below 100ppm through a dryer and melted in extruder 10% of the total weight of the chip is added and the ratio of high melting point PET and low melting point PET is spun at 80:20 by conjugate spinning. The spun nonwoven fabric is randomly stacked on the conveyor and the discharge amount and the conveyor speed are adjusted so that the unit weight is 150 g / m 2. The prepared web is entangled with a needle punching machine to impart shape stability.

실시예 2 Example 2

마스터배치 칩의 비율만 전체 중량 대비 5중량% 첨가하는 외의 기타 생산조건은 실시예 1과 동일하게 하여 부직포를 제조하였다.
Other non-woven fabrics were prepared in the same manner as in Example 1 except for adding only 5% by weight to the total weight of the master batch chip.

비교예 1Comparative Example 1

마스터배치 칩을 사용하지 않는 외의 기타 생산조건은 실시예 1과 동일하게 하여 부직포를 제조하였다.
Other production conditions except the use of the master batch chip was prepared in the same manner as in Example 1.

비교예 2Comparative Example 2

마스터배치 칩의 양을 전체 전체 중량 대비 10중량%로 고융점 PET와 저융점 PET에 각각 5%의 비율로 첨가하여 방사하는 외의 기타 생산조건은 실시예 1과 동일하게 하여 부직포를 제조하였다.
Non-woven fabrics were prepared in the same manner as in Example 1 except that the amount of the masterbatch chip was added at a ratio of 5% to the high melting point PET and the low melting point PET by 10% by weight based on the total weight.

비교예 3Comparative Example 3

마스터배치 칩의 양을 전체 중량대비 25중량%로 저융점 PET에 첨가하여 방사하는 외의 기타 생산조건은 실시예 1과 동일하게 하여 부직포를 제조하였다.
Non-woven fabrics were prepared in the same manner as in Example 1 except that the amount of the masterbatch chip was added to the low-melting point PET by 25% by weight based on the total weight.

항목Item 실시예1Example 1 실시예2Example 2 비교예1Comparative Example 1 비교예2Comparative Example 2 비교예3Comparative Example 3 내후성
처리전
Weatherability
Before treatment
인장강도
(kgf)
The tensile strength
(kgf)
MDMD 8383 8585 8888 8080 7272
CDCD 5252 5353 5555 4848 4141 신도
(%)
Shindo
(%)
MDMD 6666 7070 6868 6363 6666
CDCD 7070 7373 7777 6666 6262 내후성
처리후
Weatherability
After treatment
인장강도
(kgf)
The tensile strength
(kgf)
MDMD 7575 7676 4141 6969 5555
CDCD 5959 6262 2222 3434 2828 신도
(%)
Shindo
(%)
MDMD 5555 6262 3030 5050 4040
CDCD 5252 5353 3333 4848 4242 방사상태Radiation 양호Good 양호Good 양호Good 양호Good 불량Bad

상기 표 1에서 볼 수 있듯이, 본 발명에 따라 자외선 안정제를 시스부분에만 첨가한 실시예의 것이 강도도 저하되지 않으면서 자외선에 대한 안정성도 전체에 첨가하는 것보다 우수한 것으로 판명되었다.
As can be seen from Table 1, according to the present invention, it was found that the embodiment of the present invention in which the UV stabilizer was added only to the sheath portion was superior to that of the UV ray stabilizer.

1-1 : 시스부분
1-2 : 자외선 안정제
1-3 : 코어부분
2-1 : 저융점 폴리에스터 익스트루더
2-2 : 고융점 폴리에스터 익스트루더
2-3 : 컨쥬게이트 방사
2-4 : 컨베이어
2-5 : 열압착
2-6 : 와인더
3-1 : 언와인더
3-2 : 니들펀칭
3-3 : 와인더
1-1: Sheath part
1-2: UV stabilizer
1-3: Core part
2-1: Low Melting Polyester Extruder
2-2: High Melting Polyester Extruder
2-3: Conjugate emission
2-4: Conveyor
2-5: thermocompression
2-6: Winder
3-1: Unwinder
3-2: Needle Punching
3-3: Winder

Claims (4)

코어 부분에 융점이 250 내지 260℃인 고융점 폴리에스터와 시스부분에 융점이 200 내지 250℃인 저융점 폴리에스터를 컨쥬게이트 방사법으로 방사하여 만든 부직포로서;
상기 시스 부분에는 벤조자지논, 살리실산에스테르계, 아크릴로 니트릴 치환체, 유기 니켈 화합물, 살리실산 에스테르, 신남산 에스테르 유도체, 레조르시놀 모노벤조에이트, 옥사닐리드, 하이드록시벤조산 에스테르, HALS(Hindered Amine Light Stabilizer)계 화합물에서 선택된 하나 이상의 자외선 안정제가 10 내지 25중량% 정도 함유된 마스터배치 칩을 전체 중량 대비 5 내지 20중량% 정도로 첨가한 것임을 특징으로 하는 자외선에 안정한 폴리에스터 부직포.
A non-woven fabric produced by conjugate spinning a high melting point polyester having a melting point of 250 to 260 ° C. in a core portion and a low melting point polyester having a melting point of 200 to 250 ° C. in a sheath portion;
The cis moiety includes a benzozazinone, salicylic acid ester, acrylonitrile substituent, organic nickel compound, salicylic acid ester, cinnamic acid ester derivative, resorcinol monobenzoate, oxanilide, hydroxybenzoic acid ester, HALS (Hindered Amine Light) Stabilizer) The non-stable polyester nonwoven fabric, characterized in that the addition of about 5 to 20% by weight of the masterbatch chip containing at least 10 to 25% by weight of the UV stabilizer selected from the compound.
제 1항에 있어서, 상기 저융점 폴리에스터의 함량은 5중량% 내지 40중량%의 비율로 만들어진 것을 특징으로 하는 자외선에 안정한 폴리에스터 부직포.
The UV-stable polyester nonwoven fabric according to claim 1, wherein the low-melting polyester content is made in a ratio of 5% by weight to 40% by weight.
제 1항에 있어서, 상기 부직포의 결합방법은 열압착 또는 니들펀칭을 이용하는 것임을 특징으로 하는 자외선에 안정한 폴리에스터 부직포.
The method of claim 1, wherein the bonding method of the nonwoven fabric UV-stable polyester nonwoven fabric, characterized in that the use of thermal compression or needle punching.
삭제delete
KR1020110109895A 2011-10-26 2011-10-26 Polyester nonwoven fabric having an improved stability for ultraviolet and preparing method thereof KR101252395B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101735959B1 (en) * 2015-11-23 2017-05-24 도레이첨단소재 주식회사 Spunbond nonwoven fabric for a drainage filter and manufacturing method thereof
KR101776399B1 (en) * 2015-09-22 2017-09-07 도레이첨단소재 주식회사 Polyester nonwoven fabric for engineering works and manufacturing method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09105062A (en) * 1995-10-06 1997-04-22 Unitika Ltd Weather-resistant filament nonwoven fabric
JP2000144583A (en) 1998-11-12 2000-05-26 Toray Ind Inc Sheet-like product
JP2000224927A (en) * 1999-02-08 2000-08-15 Chisso Corp Insect-repelling sheet
KR20100117337A (en) * 2009-04-24 2010-11-03 양용호 Manufacturing method for nonwoven using absorbent cotton

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09105062A (en) * 1995-10-06 1997-04-22 Unitika Ltd Weather-resistant filament nonwoven fabric
JP2000144583A (en) 1998-11-12 2000-05-26 Toray Ind Inc Sheet-like product
JP2000224927A (en) * 1999-02-08 2000-08-15 Chisso Corp Insect-repelling sheet
KR20100117337A (en) * 2009-04-24 2010-11-03 양용호 Manufacturing method for nonwoven using absorbent cotton

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101776399B1 (en) * 2015-09-22 2017-09-07 도레이첨단소재 주식회사 Polyester nonwoven fabric for engineering works and manufacturing method thereof
KR101735959B1 (en) * 2015-11-23 2017-05-24 도레이첨단소재 주식회사 Spunbond nonwoven fabric for a drainage filter and manufacturing method thereof

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