KR100493110B1 - Thermoplastic Synthetic Fiber Nonwoven Fabric and its Manufacturing Method - Google Patents
Thermoplastic Synthetic Fiber Nonwoven Fabric and its Manufacturing Method Download PDFInfo
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- KR100493110B1 KR100493110B1 KR1019970046306A KR19970046306A KR100493110B1 KR 100493110 B1 KR100493110 B1 KR 100493110B1 KR 1019970046306 A KR1019970046306 A KR 1019970046306A KR 19970046306 A KR19970046306 A KR 19970046306A KR 100493110 B1 KR100493110 B1 KR 100493110B1
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- South Korea
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- nonwoven fabric
- synthetic fiber
- thermoplastic
- fiber nonwoven
- thermoplastic synthetic
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- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 53
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 53
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 41
- 229920002994 synthetic fiber Polymers 0.000 title claims abstract description 32
- 239000012209 synthetic fiber Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 35
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 35
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 35
- 239000011112 polyethylene naphthalate Substances 0.000 claims abstract description 26
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims abstract description 25
- 238000002074 melt spinning Methods 0.000 claims abstract description 15
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 15
- 229920001577 copolymer Polymers 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims 2
- 229920000573 polyethylene Polymers 0.000 claims 2
- 125000005487 naphthalate group Chemical group 0.000 claims 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 239000012773 agricultural material Substances 0.000 abstract description 2
- 239000004035 construction material Substances 0.000 abstract description 2
- 239000012770 industrial material Substances 0.000 abstract 1
- 239000000654 additive Substances 0.000 description 12
- 239000000835 fiber Substances 0.000 description 10
- 238000009987 spinning Methods 0.000 description 9
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000000779 smoke Substances 0.000 description 7
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 239000003963 antioxidant agent Substances 0.000 description 5
- 238000009960 carding Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- GYUVMLBYMPKZAZ-UHFFFAOYSA-N dimethyl naphthalene-2,6-dicarboxylate Chemical compound C1=C(C(=O)OC)C=CC2=CC(C(=O)OC)=CC=C21 GYUVMLBYMPKZAZ-UHFFFAOYSA-N 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000005809 transesterification reaction Methods 0.000 description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 2
- 101000579646 Penaeus vannamei Penaeidin-1 Proteins 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000012963 UV stabilizer Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- BTVWZWFKMIUSGS-UHFFFAOYSA-N dimethylethyleneglycol Natural products CC(C)(O)CO BTVWZWFKMIUSGS-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000000326 ultraviolet stabilizing agent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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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
- D04H1/558—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 in combination with mechanical or physical treatments other than embossing
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D11/00—Other features of manufacture
- D01D11/02—Opening bundles to space the threads or filaments from one another
-
- 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
- D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
-
- 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
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
- D06M10/025—Corona discharge or low temperature plasma
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Nonwoven Fabrics (AREA)
Abstract
1. 청구 범위에 기재된 발명이 속한 기술 분야1. The technical field to which the invention described in the claims belongs
본 발명은 각종 산업용 자재로 사용되는 내후성이 우수한 열가소성 합성섬유 부직포 및 그의 제조 방법에 관한 것이다.The present invention relates to a thermoplastic synthetic fiber nonwoven fabric having excellent weather resistance used in various industrial materials and a method for producing the same.
2. 발명이 해결하려고 하는 기술적 과제2. The technical problem to be solved by the invention
본 발명은 내후성이 우수한 열가소성 합성섬유 부직포를 저렴한 제조원가, 간단한 공정 및 우수한 조업성으로 제조할 수 있는 방법을 제공한다.The present invention provides a method for producing a thermoplastic synthetic fiber nonwoven fabric having excellent weather resistance at a low manufacturing cost, a simple process and excellent operation properties.
3. 발명의 해결 방법의 요지3. Summary of the Solution of the Invention
폴리에틸렌테레프탈레이트와 폴리에틸렌나프탈레이트의 공중합체(Copolymer) 또는 혼합물 (Blender)을 용융 방사하여 열가소성 멀티필라멘트를 제조한 다음, 제조된 열가소성 멀티필라멘트를 랜덤하게 분산하여 다공질 콘베어상에 집적시켜 웹을 제조하고, 이들 웹에 교락을 부여하여 내후성이 우수한 열가소성 합성섬유 부직포를 제조한다.A thermoplastic multifilament is prepared by melt spinning a copolymer or a mixture of polyethylene terephthalate and polyethylene naphthalate, and then randomly disperses the prepared thermoplastic multifilament to form a web on a porous conveyor. To impart entanglement to these webs, a thermoplastic synthetic fiber nonwoven fabric having excellent weatherability is produced.
4. 발명의 중요한 용도4. Important uses of the invention
본 발명의 열가소성 합성섬유 부직포는 각종 건설 자재, 농업 자재, 자동차용 자재 및 위생용품 자재 등으로 사용된다.Thermoplastic synthetic fiber nonwoven fabric of the present invention is used in various construction materials, agricultural materials, automotive materials and sanitary products.
Description
본 발명은 내후성이 우수한 열가소성 합성섬유 부직포 및 그의 제조방법에 관한 것이다.The present invention relates to a thermoplastic synthetic fiber nonwoven fabric having excellent weather resistance and a method for producing the same.
열가소성 합성섬유 부직포는 형태 안정성과 열안정성 등의 물성이 우수하므로 각종 건설자재, 농업 자재, 자동차용 자재, 메디칼용 자재, 위생용 자재 등으로 이용되고 있으며, 사용량도 급증하는 추세이다.Thermoplastic synthetic fiber nonwoven fabrics are used for various construction materials, agricultural materials, automobile materials, medical materials, sanitary materials, etc. because of their excellent morphological stability and thermal stability.
또한, 열가소성 합성섬유 부직포는 강력이 높고, 적당한 보온성, 통기성, 투습성, 흡습성 및 보수성(保水性)을 갖고, 소재와 색상을 적절하게 조합하는 경우에는 투광성 및 차광성을 조절할 수 있어서 온실의 내부 커텐용, 차광 및 차열용 및 배수용 덮개나 깔개로 널리 사용되고 있다.In addition, the thermoplastic synthetic fiber nonwoven fabric has high strength, moderate heat retention, breathability, moisture permeability, hygroscopicity and water retention, and when the material and color are properly combined, the light transmittance and the light blocking property can be adjusted, so that the interior curtain of the greenhouse It is widely used as a cover or rug for use in shading, shading and shielding, and drainage.
이와 같은 열가소성 합성섬유 부직포는 지금까지 폴리에스테르, 나일론 또는 폴리프로필렌 단독 수지나 이들의 복합 수지로 제조되어 왔다.Such thermoplastic synthetic fiber nonwoven fabrics have been produced so far with polyester, nylon or polypropylene single resins or composite resins thereof.
구체적으로는 폴리에스테르, 나일론 및/또는 폴리프로필렌 수지를 용융 방사하여 이들의 멀티필라멘트를 제조하고, 제조된 멜티필라멜트들을 고압의 공기로 다공질 콘베이어 상에 랜덤하게 분산시켜 웹(Web)을 제조하고, 이들을 연신 및 개섬한 후 열압착 방법, 니들펀칭 방법, 또는 수지결합 방법 등으로 교락하여 열가소성 합성섬유 부직포를 제조해 오고 있다.Specifically, polyester, nylon and / or polypropylene resins are melt-spun to prepare their multifilaments, and the prepared meltifilamelts are randomly dispersed on a porous conveyor with high pressure air to prepare a web. After stretching and opening these, they are entangled by a thermocompression bonding method, a needle punching method, a resin bonding method, or the like to produce a thermoplastic synthetic fiber nonwoven fabric.
이와 같이 제조된 종래 열가소성 합성섬유 부직포는 내후성능이 앞에서 설명한 여러 용도로 사용하기에는 부족한 문제가 있었다. 따라서 내후성 향상을 위해 산화 방지제, 내열제, 내후 안정제 또는 자외선 흡수제 등의 첨가제를 섬유내에 혼입시키거나 후가공 방법에 의해 섬유 표면에 부착시키는 여러 방법이 사용되어 왔으나 이들 모두 공정이 복잡하고 제조 원가가 상승하는 문제가 있다.The conventional thermoplastic synthetic fiber nonwoven fabric prepared as described above has a problem in that weatherability is insufficient for use in the various applications described above. Therefore, in order to improve weather resistance, various methods of incorporating additives such as antioxidants, heat resistant agents, weather stabilizers, or ultraviolet absorbers into the fibers or attaching them to the surface of the fibers by post-processing methods have been used. There is a problem.
구체적으로 산화 방지제 등의 첨가제들을 섬유내부에 혼합시키는 일반적인 방법으로는 첨가제를 함유하지 않는 열가소성 수지 칩과 첨가제를 함유한 마스터 칩을 먼저 혼합한 후 이들을 용융 방사하는 것이다.Specifically, a general method of mixing additives such as antioxidants into a fiber is to first mix a thermoplastic chip containing no additives and a master chip containing additives, followed by melt spinning them.
이와 같은 경우 첨가제가 방사 공정중에 열분해 되어 연기 등이 많이 발생될 뿐만아니라 조업성 및 작업성이 저하된다. 특히 방사된 멀티필라멘트를 개섬시키는 공정에서는 다량의 공기를 사용하기 때문에 첨가제의 열분해로 발생되는 연기는 조업에 맡은 어려움을 야기시킨다.In this case, the additive is thermally decomposed during the spinning process to generate a lot of smoke and the like, and the workability and workability are deteriorated. In particular, since a large amount of air is used in the process of opening the spun multifilament, smoke generated by pyrolysis of additives causes difficulties in operation.
한편, 자외선 흡수제 등의 첨가제 물질을 용융 방사 단계에서 첨가하지 않고 후가공 방법에 의해 섬유 표면에 부착시키는 방법도 시도되고 있지만, 내후성의 지속주기 (내구성)가 짧고 공정이 복잡해지는 문제가 발생된다. 따라서 지금까지 설명한 여러 가지의 문제점을 해결함과 동시에 내후성이 우수한 열가소성 합성섬유 부직포를 제조하는 기술의 개발이 요구되어 왔다.On the other hand, a method of adhering to the fiber surface by a post-processing method without adding an additive material such as an ultraviolet absorber in the melt spinning step has also been attempted, but the problem that the duration of durability (durability) is short and the process is complicated. Accordingly, there has been a demand for developing a technology for manufacturing thermoplastic synthetic fiber nonwoven fabric having excellent weather resistance while solving various problems described up to now.
본 발명은 내후성 향상을 위한 각종 첨가제를 사용하지 않으므로서 방사 공정중 연기 발생으로 인한 작업성 및 조업성의 저하를 방지할 수 있고, 내후성의 지속주기가 길고, 제조 원가가 저렴하고, 제조 공정이 간단한 열가소성 합성섬유 부직포의 제조 방법을 제공하고자 한다.The present invention can prevent deterioration of workability and operability due to smoke generation during the spinning process without using various additives for improving weather resistance, has a long duration of weather resistance, low manufacturing cost, and simple manufacturing process. It is to provide a method for producing a thermoplastic synthetic fiber nonwoven fabric.
본 발명은 내후성이 우수한 열가소성 합성섬유 부직포 및 그의 제조방법에 관한 것이다.The present invention relates to a thermoplastic synthetic fiber nonwoven fabric having excellent weather resistance and a method for producing the same.
더욱 구체적으로 본 발명은 열가소성 수지를 용융 방사하여 열가소성 멀티필라멘트를 제조하는 공정, 제조된 열가소성 멀티필라멘트를 랜덤하게 분산하여 다공질 콘베어상에 집적시키는 웹화 공정 및 웹에 교락을 부여하는 교락 공정을 거쳐 열가소성 합성섬유 부직포를 제조함에 있어서, 상기 열가소성 멀티필라멘트로서 폴리에틸렌테레프탈레이트 (이하 PET라고 한다.)와 폴리에틸렌나프탈레이트 (이하 PEN이라고 한다)의 공중합체(Copolymer) 또는 혼합물(Blender)를 용융 방사하여 제조한 멀티필라멘트를 사용함을 특징으로 하는 내후성이 우수한 열가소성 함성섬유 부직포의 제조 방법에 관한 것이다.More specifically, the present invention provides a method of manufacturing thermoplastic multifilament by melt spinning a thermoplastic resin, a web process of randomly dispersing the prepared thermoplastic multifilament and integrating it onto a porous conveyor, and a entanglement process of imparting entanglement to a web. In preparing a synthetic fiber nonwoven fabric, a copolymer or blend of polyethylene terephthalate (hereinafter referred to as PET) and polyethylene naphthalate (hereinafter referred to as PEN) as the thermoplastic multifilament is manufactured by melt spinning. The present invention relates to a method for producing a thermoplastic-containing fiber nonwoven fabric having excellent weather resistance, characterized by using multifilament.
또한 본 발명은 부직포를 구성하는 섬유가 폴리에틸렌테레프탈레이트와 폴리에틸렌나프탈레이트의 공중합체(Copolymer) 또는 혼합물(Blender)로 제조된 멀티필라멘트 또는 이들의 단섬유(Staple)이고, 내후성(인장 강도 유지율)이 70 % 이상인 것을 특징으로 하는 열가소성 합성섬유 부직포에 관한 것이다.In addition, in the present invention, the fibers constituting the nonwoven fabric are multifilaments or staples made of a copolymer or a mixture of polyethylene terephthalate and polyethylene naphthalate, and weather resistance (tensile strength retention) is It relates to a thermoplastic synthetic fiber nonwoven fabric, characterized in that more than 70%.
본 발명을 더욱 상세하게 설명하기로 한다.The present invention will be described in more detail.
본 발명은 종래 부직포의 내후성 향상을 위해 섬유 내부에 첨가하거나 섬유 표면에 부착해 온 산화 방지제, 내열제, 내후 안정제 혹은 자외선 흡수제를 사용하지 않는 것을 특징으로 한다.The present invention is characterized in that it does not use an antioxidant, a heat resistant agent, a weathering stabilizer or an ultraviolet absorber which has been added to the inside of the fiber or adhered to the fiber surface to improve weather resistance of the conventional nonwoven fabric.
본 발명의 열가소성 합성섬유 부직포는 열가소성 수지를 용융 방사하여 열가소성 멀티필라멘트를 제조하는 방사 공정, 제조된 열가소성 멀티필라멘트를 랜덤하게 분산하여 다공질 콘베어상에 집적시키는 웹(Web) 공정 및 교락 공정을 거쳐 제조한다.The thermoplastic synthetic fiber nonwoven fabric of the present invention is manufactured through a spinning process of melting and spinning a thermoplastic resin to produce a thermoplastic multifilament, a web process and an entanglement process of randomly dispersing the prepared thermoplastic multifilament and integrating it on a porous conveyor. do.
또한 상기와 같이 제조된 열가소성 멀티필라멘트를 절단하여 단섬유(Staple)을 제조하는 공정, 이들 단섬유를 다공질 콘베어상에 집적시키는 웹 공정 및 교락 공정을 거쳐 제조할 수도 있다.In addition, by cutting the thermoplastic multifilament prepared as described above may be produced through a process for producing a staple, a web process and an entanglement process to integrate these short fibers on a porous conveyor.
먼저 본 발명은 열가소성 합성섬유 부직포의 내후성 향상을 위해 장섬유 (Multi Filament)를 제조하는 용융 방사 공정에 있어서 PET와 PEN의 공중합체 또는 혼합물을 사용한다. PEN은 2차 유리 전이온도(Tg)가 PET보다 높기 때문에 용융 방사시 PEN과 PET를 공중합 또는 혼합 사용하면, 종래의 각종 첨가제를 용융 방사 단계에서 첨가하거나 후가공 공정에서 섬유 표면에 부착하지 않고도 지속주기(내구성)이 반영구적인 내후성을 부직포에 부여할 수 있다. PET와 PEN의 혼합물(Blener)은 PET 칩과 PEN 칩을 계량 후 혼합하여 제조한다. PET와 PEN의 공중합체(Copolymer)는 디메틸테레프탈레이트, 에틸렌글리콜 및 디메틸-2, 6-나프탈렌디카복시레이트를 중합관에 투입한 후 승온하여 에스테르 교환 반응으로 메탄올을 유출시킨 다음 에스테르 교환 반응이 완료되면 촉매를 투입하여 제조한다.First, the present invention uses a copolymer or a mixture of PET and PEN in the melt spinning process for producing long filaments (Multi Filament) to improve the weather resistance of the thermoplastic synthetic fiber nonwoven fabric. Since PEN has a higher secondary glass transition temperature (Tg) than PET, when PEN and PET are copolymerized or mixed during melt spinning, various cycles of conventional additives are added in the melt spinning step or in the post-processing process without attaching to the fiber surface. Durability can impart semi-permanent weather resistance to a nonwoven fabric. Blend of PET and PEN (Blener) is produced by mixing the PET chip and PEN chip after weighing. Copolymer of PET and PEN is dimethyl terephthalate, ethylene glycol and dimethyl-2, 6- naphthalenedi carboxylate is added to the polymerization tube, the temperature is raised, the methanol is released by the transesterification reaction and the transesterification reaction is completed When prepared, the catalyst is added.
본 발명에 사용되는 PET와 PEN이 공중합체 (Copolymer)는 PET 80∼99 몰%와 PEN 1 ∼ 20 몰%로 구성되는 것이 바람직 하며, PET와 PEN의 혼합물은 PET 80 ∼ 99 중량%와 PEN 1 ∼ 20 중량 %로 구성되는 것이 바람직하다. 만약 PEN이 20 몰% 또는 20 중량%를 초과할 경우에는 PET와의 상용성이 불균일하여 물성이 저하될 뿐만아니라 PEN의 가격이 비싸기 때문에 비경제적이다. 또한 PEN이 1몰% 또는 1 중량% 미만일 경우에는 열가소성 합성섬유 부직포의 내후성이 바람직한 수준까지 향상되지 않는다.PET and PEN copolymer used in the present invention (Copolymer) is preferably composed of 80 to 99 mol% PET and 1 to 20 mol% PEN, the mixture of PET and PEN is PET 80-99 wt% and PEN 1 It is preferable that it consists of-20 weight%. If PEN exceeds 20 mol% or 20 wt%, it is uneconomical because the compatibility with PET is not uniform and the physical properties are lowered and PEN is expensive. In addition, when the PEN is less than 1 mol% or 1 weight%, the weather resistance of the thermoplastic synthetic fiber nonwoven fabric does not improve to a desirable level.
본 발명에서는 PET와 PEN의 공중합체 또는 혼합물을 용융 방사하여 단사섬도 (모노 필라멘트의 섬도)가 0.5∼20데니어인 열가소성 멀티필라멘트를 제조한다. 단사섬도가 너무 가늘 경우 연신 이젝터에서의 절사가 많아져 공정성이 저하되며 최종 제품의 강력도 저하될 수 있다.In the present invention, a thermoplastic multifilament having a single yarn fineness (fineness of monofilament) of 0.5 to 20 denier is produced by melt spinning a copolymer or mixture of PET and PEN. If the single yarn fineness is too thin, there is more cutting in the stretch ejector, which may lower the fairness and reduce the strength of the final product.
반면에 단사섬도가 너무 굵을 경우에는 방사공정상에 있어서 원사의 냉각 불균일이 일어나 제품의 물성이 불균일해진다.On the other hand, when the single yarn fineness is too thick, the cooling unevenness of the yarn occurs in the spinning process, resulting in uneven physical properties of the product.
다음으로는 이상에서 설명한 바와 같이 PET와 PEN의 공중합체 또는 혼합물을 용융 방사하여 제조한 열가소성 멀티필라멘트를 에어이젝터에서 고압의 공기로 연신한 후 개섬 장치를 이용하여 연신된 멀티필라멘트를 이동하는 다공질 콘베어상에 균일하게 분산, 집적시켜서 웹(Web)을 제조한다. 개섬 장치는 정전기를 이용하는 코로나 방전 방법 등이 사용될 수 있다. 연신은 연신후의 단사섬도가 0.5∼20데니어가 되도록 연신 조건을 조절하는 것이 바람직하다.Next, as described above, the porous multi-filament manufactured by melt spinning a copolymer or mixture of PET and PEN is stretched with high-pressure air in an air ejector, and then the porous multi-filament is moved using a carding machine. The web is manufactured by uniformly dispersing and integrating the phase. The carding machine may be a corona discharge method using static electricity. It is preferable to adjust extending | stretching conditions so that single yarn fineness after extending | stretching may be 0.5-20 denier after extending | stretching.
한편 용융 방사하여 제조된 열가소성 멀티필라멘트를 절단하여 단섬유(Staple)를 제조한 후, 단섬유(Staple)들을 이동하는 다공질 콘베어 상에 분산, 집적시켜서 웹을 제조할 수도 있다.On the other hand, after cutting the thermoplastic multifilament produced by melt spinning to produce a staple (Staple), it is also possible to produce a web by dispersing and integrating the staples on a moving porous conveyor.
다음으로는 제조된 웹(Web)에 강력을 부여하기 위해서 열압접 방법, 니들 펀치법 및/또는 수지 결합법 등으로 교락을 부여한다. 일반적으로 부직포의 단위 중량이 100g/m2 이하일 경우에는 주로 열압접 방법을 이용하고, 100g/m2 이상일 경우에는 주로 니들 펀치법을 이용한다. 수지 결합법은 이들 방법들에 의해 제조된 부직포의 강력을 보강하는 보조수단으로 사용된다.Next, in order to give strength to the manufactured web, the entanglement is provided by the hot pressing method, the needle punch method, and / or the resin bonding method. Generally, when the unit weight of the nonwoven fabric is 100 g / m 2 or less, the hot pressing method is mainly used, and when 100 g / m 2 or more, the needle punch method is mainly used. The resin bonding method is used as an auxiliary means for reinforcing the strength of the nonwoven fabric produced by these methods.
이와 같이 교락이 부여된 웹(Web)을 권취하여 본 발명의 열가소성 합성섬유 부직포를 제조한다.In this way, the web given the entanglement (Web) is wound up to produce the thermoplastic synthetic fiber nonwoven fabric of the present invention.
본 발명의 열가소성 합성섬유 부직포는 2차 유리 전이온도(Tg)가 높은 PEN을 PET와 공중합 또는 브랜드 시킨 수지로 제조되기 때문에 종래의 각종 첨가제 사용 없이도 내후성이 매우 우수하며 내후성의 효과도 반영구적이다.Since the thermoplastic synthetic fiber nonwoven fabric of the present invention is made of a resin in which PEN having a high secondary glass transition temperature (Tg) is copolymerized or branded with PET, it is very excellent in weatherability without using various conventional additives, and the effect of weather resistance is also semi-permanent.
아울러 종래의 각종 첨가제를 사용하지 않기 때문에 방사 공정중 연기 발생으로 인한 작업성 및 조업성 저하를 방지할 수 있고, 제조 원가가 저렴하고, 제조 공정이 간소하다.In addition, since various conventional additives are not used, workability and operability deterioration due to smoke generation during the spinning process can be prevented, manufacturing cost is low, and the manufacturing process is simple.
본 발명의 열가소성 합성섬유 부직포는 아래 평가 방법으로 측정한 내후성 (인장 강도 유지율)이 70% 이상이다.The thermoplastic synthetic fiber nonwoven fabric of the present invention has a weather resistance (tensile strength retention) of 70% or more as measured by the following evaluation method.
본 발명에 있어서 열가소성 합성섬유 부직포의 내후성, 조업성 및 인장 강력의 평가 방법은 아래와 같다.In the present invention, the evaluation method of weather resistance, workability and tensile strength of the thermoplastic synthetic fiber nonwoven fabric is as follows.
· 내후성 (인장 강도 유지율)Weather resistance (tensile strength retention)
JIS L - 1096 6.30 내후성 측정법(일본)에 준해서 JIS B 7752 [자외선 카본아아크등(燈) 내후성 시험기] 또는 JIS B 7753 [일광 카본아아크등(燈) 내후성 시험기] 에 정한 시험기를 이용해서 소정의 시간동안 노출(Ageing)한후 시험편을 취외하여 자연건조해서 표준상태로 조습한 시험편의 인장 강력을 인스트롱으로 측정한다. 또한 에이징 처리전의 시험편의 인장 강도를 인스트롱으로 측정한 후 아래식으로 내후성을 계산한다.According to JIS L-1096 6.30 Weather Resistance Measurement Method (Japan), a predetermined tester is used according to JIS B 7752 [Ultraviolet carbon arc lamp weather resistance tester] or JIS B 7753 [Sunlight carbon arc lamp weather resistance tester]. After exposure for a period of time, the specimen is removed, dried naturally, and the tensile strength of the specimen moistened to a standard condition is measured with an Instron. In addition, after measuring the tensile strength of the test piece before the aging treatment by Instron, weather resistance is calculated by the following equation.
· 조업성 평가· Operability evaluation
스펀본드(Spubond)법에 있어서 24시간 조업성 (수율) 및 방사 구금직 하에서 연기 발생을 관찰하여 연기 발생 유무를 조사함.In the spunbond method, smoke was observed under 24-hour operation (yield) and spinning detention to investigate the occurrence of smoke.
· 인장 강력Tensile strength
JIS L - 1096 법 (일본)/KS K 0520 (한국)에 준해서 폭 50㎜, 길이 100㎜의 시편을 이용 300m/분 인장 속도에서 최대 인장 강력을 측정한다.The maximum tensile strength is measured at a tensile speed of 300 m / min using a specimen 50 mm wide and 100 mm long according to JIS L-1096 method (Japan) / KS K 0520 (Korea).
이하 실시예 및 비교실시예를 통하여 본 발명을 상세하게 설명하기로 한다. 그러나 본 발명이 실시예에만 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples. However, the present invention is not limited only to the examples.
실시예 1Example 1
디메틸 - 2, 6 - 나프탈렌 디카르복실레이트 (이하 2, 6 - NDC라고 한다) 1 몰%, 디메틸테레프탈레이트 (이하 DMT 라고 한다) 99 몰% 및 과량의 에틸렌글리콜을 중합 반응기에 투입 후 이들을 공중합 시켜 PET와 PEN의 공중합체를 제조한다. 제조한 공중합체를 용융 방사후 에어이젝터에서 연신하여 단사 섬도가 20데니어인 열가소성 멀티필라멘트를 제조한다. 열가소성 멀티필라멘트를 코로나 방전 방식의 개섬 장치로 개섬한 후 네트 콘베이어 상에 랜덤하게 분산시켜 웹(Web)을 형성한 다음, 제조한 웹을 200℃의 로울러로 열압착하여 단위 중량이 80g/m2 인장 열가소성 합성섬유 부직포를 제조한다.1 mol% of dimethyl-2,6-naphthalene dicarboxylate (hereinafter referred to as 2,6-NDC), 99 mol% of dimethylterephthalate (hereinafter referred to as DMT) and an excess of ethylene glycol are added to the polymerization reactor and copolymerized. To prepare a copolymer of PET and PEN. The prepared copolymer is stretched in an air ejector after melt spinning to prepare a thermoplastic multifilament having a single yarn fineness of 20 denier. The thermoplastic multifilament is opened with a corona discharge type carding machine, and then randomly dispersed on a net conveyor to form a web. Then, the manufactured web is thermocompressed with a roller at 200 ° C to have a unit weight of 80 g / m 2. A tensile thermoplastic synthetic nonwoven fabric is prepared.
실시예 2 ∼ 실시예 5Example 2-Example 5
2, 6 - NDC 및 DMT의 공중합 몰 비 및 단사 섬도를 표1과 같이 변경한 것을 제외하고는 실시예 1과 동일한 조건 및 공정으로 열가소성 합성섬유 부직포를 제조한다.A thermoplastic synthetic fiber nonwoven fabric was manufactured under the same conditions and processes as in Example 1 except that the copolymer molar ratio and single yarn fineness of 2, 6-NDC and DMT were changed as shown in Table 1.
실시예 6Example 6
PEN 칩 1 중량% 및 PET 칩 99 중량%를 혼합하여 PET와 PEN의 혼합물(Blender)을 제조한다. 제조한 혼합물(Blender)를 용융 방사후 에어이젝트에서 연신하여 단사 섬도가 20데니어인 열가소성 멀티 필라멘트를 제조한다. 열가소성 멀티필라멘트를 코로나 방전 방식의 개섬 장치로 개섬한 후 네트 콘베이어 상에 랜덤하게 분산시켜 웹(Web)을 형성한 다음, 제조한 웹을 200℃의 로울러로 열압착하여 단위 중량이 80g/㎜2인 열가소성 합성섬유 부직포를 제조한다.1% by weight of the PEN chip and 99% by weight of the PET chip are mixed to prepare a blend of PET and PEN. The prepared mixture (Blender) is stretched in an air eject after melt spinning to prepare a thermoplastic multifilament having a single yarn fineness of 20 denier. The thermoplastic multifilament is opened with a corona discharge type carding machine, and then randomly dispersed on a net conveyor to form a web. The web is then thermo-compressed with a roller at 200 ° C. to have a unit weight of 80 g / mm 2. A phosphor synthetic thermoplastic nonwoven fabric is prepared.
실시예 7 ∼ 실시예 9Example 7-Example 9
PET 칩 및 PET 칩의 혼합 중량비 및 단사 섬도를 표 1과 같이 변경한 것을 제외하고는 실시예 6과 동일한 조건 및 공정으로 열가소성 합성섬유 부직포를 제조한다.A thermoplastic synthetic fiber nonwoven fabric was manufactured under the same conditions and processes as in Example 6 except that the mixed weight ratio and single yarn fineness of the PET chip and the PET chip were changed as shown in Table 1.
비교실시예 1Comparative Example 1
시바가이이사의 벤조페놀계 산화 방지제가 20ppm 첨가된 폴리에틸렌테레프탈레이트를 용융 방사한 후 에어이젝트에서 연신하여 단사 섬도가 15데니어인 PET 멀티필라멘트를 제조한다. 방사된 PET 멀티필라멘트를 코로나 방전 방식의 개섬 장치로 개섬한후 네트 콘베이어 상에 랜덤하게 분산시켜 웹(Web)을 형성한 다음, 제조한 웹을 200℃의 로울러로 열압착하여 단위 중량이 80g/m2인 열가소성 합성섬유 부직포를 제조한다.20 parts of polyethylene terephthalate to which benzophenol-based antioxidant of Shiba-Gai Co. is added is melt spun and stretched in an air eject to prepare PET multifilament having 15 denier single yarn fineness. After spinning the spun PET multifilament with a corona discharge type carding machine, randomly disperse on the net conveyor to form a web, and heat-compress the manufactured web with a roller at 200 ° C. A m 2 thermoplastic synthetic fiber nonwoven fabric is prepared.
비교실시예 2Comparative Example 2
산화 방지제 대신에 자외선 안정제를 첨가한 것을 제외하고는 비교실시예 1과 동일한 조건 및 공정으로 열가소성 합성섬유 부직포를 제조한다.A thermoplastic synthetic fiber nonwoven fabric was manufactured under the same conditions and processes as in Comparative Example 1 except that an ultraviolet stabilizer was added instead of an antioxidant.
<표 1> 제조 조건TABLE 1 Manufacturing Conditions
실시예 및 비교실시예에서 제조한 열가소성 합성섬유 부직포의 조업성 및 내후성을 앞에서 설명한 평가 방법으로 평가한 결과는 표 2와 같다.Table 2 shows the results of evaluating the operability and weather resistance of the thermoplastic synthetic fiber nonwoven fabric prepared in Examples and Comparative Examples by the above-described evaluation method.
<표 2> 물성 평가 결과<Table 2> Property Evaluation Results
본 발명의 열가소성 합성섬유 부직포는 2차 유리 전이 온도 (Tg)가 비교적 높은 PEN을 PET와 공중합 또는 혼합한 수지로 제조되기 때문에 내후성이 70% 이상으로 우수함과 동시에 내수성이 반영구적으로 유지된다. 또한 본 발명에서는 열가소성 합성섬유 부직포 제조시 내후성 향상을 위해 자외선 안정제, 산화 방제제 및 내열제 등의 각종 첨가제를 사용하지 않아 방사 공정중 연기발생으로 인한 작업성 및 조업성의 저하를 방지할 수 있고, 제조 원가가 저렴하며, 공정도 간소화 된다.Since the thermoplastic synthetic fiber nonwoven fabric of the present invention is made of a resin obtained by copolymerizing or mixing PEN having a relatively high secondary glass transition temperature (Tg) with PET, it has excellent weather resistance of 70% or more and maintains water resistance semipermanently. In addition, the present invention does not use various additives such as UV stabilizer, oxidation control agent and heat-resistant agent to improve weather resistance when manufacturing the thermoplastic synthetic fiber nonwoven fabric, it is possible to prevent the deterioration of workability and operability due to smoke during the spinning process, The manufacturing cost is low and the process is simplified.
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| KR100493111B1 (en) * | 1997-10-15 | 2005-09-08 | 주식회사 코오롱 | Weatherproof polyester spunbond and its manufacturing method |
| KR100408632B1 (en) * | 2000-07-22 | 2003-12-06 | 최민석 | Material for the fruit protective pack and its manufacturing process |
| KR102584205B1 (en) * | 2021-08-23 | 2023-10-04 | 한국섬유개발연구원 | fiber having the property of infrared ray radiation, antimicrobial and UV blocking, and method of manufacturing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4357385A (en) * | 1979-06-15 | 1982-11-02 | Teijin Limited | Filamentary yarn useful for the weft component of a tire cord fabric and a tire cord fabric including such a yarn |
| JPS6257917A (en) * | 1985-09-04 | 1987-03-13 | Teijin Ltd | Polyester yarn |
| JPH06108311A (en) * | 1992-09-25 | 1994-04-19 | Teijin Ltd | Core-sheath type conjugate fiber and its production |
| KR950018184A (en) * | 1993-12-01 | 1995-07-22 | 안시환 | Polyester film and manufacturing method thereof |
| WO1996000567A1 (en) * | 1994-06-28 | 1996-01-11 | Nanosystems L.L.C. | Butylene oxide-ethylene oxide block copolymer surfactants as stabilizer coatings for nanocrystal formulation |
| KR970042815A (en) * | 1995-12-27 | 1997-07-26 | 이웅열 | Polyester resin for packaging material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4357385A (en) * | 1979-06-15 | 1982-11-02 | Teijin Limited | Filamentary yarn useful for the weft component of a tire cord fabric and a tire cord fabric including such a yarn |
| JPS6257917A (en) * | 1985-09-04 | 1987-03-13 | Teijin Ltd | Polyester yarn |
| JPH06108311A (en) * | 1992-09-25 | 1994-04-19 | Teijin Ltd | Core-sheath type conjugate fiber and its production |
| KR950018184A (en) * | 1993-12-01 | 1995-07-22 | 안시환 | Polyester film and manufacturing method thereof |
| WO1996000567A1 (en) * | 1994-06-28 | 1996-01-11 | Nanosystems L.L.C. | Butylene oxide-ethylene oxide block copolymer surfactants as stabilizer coatings for nanocrystal formulation |
| KR970042815A (en) * | 1995-12-27 | 1997-07-26 | 이웅열 | Polyester resin for packaging material |
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