KR20230023473A - Method for manufacturing nonwoven fabric for vehicle wheel arch liner and nonwoven fabric for vehicle wheel arch liner manufactured thereby - Google Patents
Method for manufacturing nonwoven fabric for vehicle wheel arch liner and nonwoven fabric for vehicle wheel arch liner manufactured thereby Download PDFInfo
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- KR20230023473A KR20230023473A KR1020210105629A KR20210105629A KR20230023473A KR 20230023473 A KR20230023473 A KR 20230023473A KR 1020210105629 A KR1020210105629 A KR 1020210105629A KR 20210105629 A KR20210105629 A KR 20210105629A KR 20230023473 A KR20230023473 A KR 20230023473A
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 30
- 239000002699 waste material Substances 0.000 claims abstract description 24
- 239000005871 repellent Substances 0.000 claims abstract description 20
- 230000002940 repellent Effects 0.000 claims abstract description 19
- 238000002844 melting Methods 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000002074 melt spinning Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000004080 punching Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims description 11
- 229920001577 copolymer Polymers 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 86
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 86
- 239000000463 material Substances 0.000 abstract description 3
- -1 polyethylene terephthalate Polymers 0.000 abstract description 3
- 238000010298 pulverizing process Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 14
- 238000000691 measurement method Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0861—Insulating elements, e.g. for sound insulation for covering undersurfaces of vehicles, e.g. wheel houses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/16—Mud-guards or wings; Wheel cover panels
- B62D25/161—Mud-guards made of non-conventional material, e.g. rubber, plastics
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- 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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
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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
- D04H1/4274—Rags; Fabric scraps
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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
- D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
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- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
- D06M15/277—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof containing fluorine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/09—Reducing noise
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- 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
- D10B2401/02—Moisture-responsive characteristics
- D10B2401/021—Moisture-responsive characteristics hydrophobic
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
본 발명은 차량용 휠 아치 라이너용 부직포 제조방법 및 이에 의해 제조된 차량용 휠 아치 라이너용 부직포에 관한 것이다.The present invention relates to a method for manufacturing a nonwoven fabric for a wheel arch liner for a vehicle and a nonwoven fabric for a wheel arch liner for a vehicle manufactured thereby.
휠 아치 라이너는 차량의 주행 동안에 발생되는 소음의 차량 내부로의 전달을 줄이며, 물, 모래 등이 휠 아치에 부딪치는 것을 방지한다.The wheel arch liner reduces transmission of noise generated during driving of the vehicle to the interior of the vehicle and prevents water, sand, etc. from striking the wheel arch.
한편, 겨울과 같이 기온이 낮은 기간 또는 극한지역에서 운행되는 차량의 경우 눈과 비 등으로 인해 휠 아치 내외부에 결빙현상이 발생하고, 이에 따라 차량에 손상이 발생하는 경우가 종종 발생한다.On the other hand, in the case of a vehicle operating in a period of low temperature or an extreme region such as winter, ice phenomenon occurs inside and outside the wheel arches due to snow and rain, and thus damage to the vehicle often occurs.
이를 해결하기 위하여, 발수, 발유 특성을 확보하기 위해 휠 아치 라이너를 구성하는 섬유에 첨가제를 사용하거나, 소수성 프로필렌 섬유 등의 이종소재를 함께 사용하는 경우가 있는데, 이렇게 제조된 이종소재의 휠 아치 라이너는 사용 후 재활용이 불가하고, 첨가제를 사용하는 경우 산업폐기물 발생으로 인해 환경오염의 주범이 된다.In order to solve this problem, there are cases in which additives are used in the fibers constituting the wheel arch liner or heterogeneous materials such as hydrophobic propylene fibers are used together to secure water and oil repellency properties. cannot be recycled after use, and when additives are used, they become the main culprit of environmental pollution due to the generation of industrial waste.
따라서, 이러한 문제를 해결하기 위하여 발수 특성을 가지면서도 재활용이 용이한 기술이 필요한 실정이다.Therefore, in order to solve this problem, there is a need for a technology that is easy to recycle while having water repellent properties.
본 발명이 해결하고자 하는 과제는 동일한 소재인 PET(폴리에틸렌테레프탈레이트)를 사용하여 재활용이 용이하고, 발수 및 발유 성능이 있는 차량용 휠 라이너 부직포 제조방법을 제공하는 것이다.The problem to be solved by the present invention is to provide a method for manufacturing a vehicle wheel liner nonwoven fabric that is easy to recycle and has water and oil repellent properties by using the same material, PET (polyethylene terephthalate).
본 발명의 일 실시예는 a) 고유점도(IV)가 0.6~0.8dl/g인 폐 PET를 분쇄하여 3~5mm의 PET 플레이크를 제조하는 단계; b) 상기 PET 플레이크를 160~200℃에서 건조하는 단계; c) 상기 PET 플레이크를 250~270℃에서 용융 방사하여 폐 PET 섬유로 제조하는 단계; d) 상기 폐 PET 섬유를 발수제에 함침하여 소수성 재생 PET 섬유를 제조하는 단계; 및 e) 상기 소수성 재생 PET 섬유 30~70중량% 및 저융점 PET 섬유 30~70중량%를 혼합하고, 니들펀칭하여 부직포로 제조하는 단계;를 포함하는 차량용 휠 아치 라이너용 부직포 제조방법이다.An embodiment of the present invention comprises the steps of a) preparing 3-5 mm PET flakes by grinding waste PET having an intrinsic viscosity (IV) of 0.6-0.8 dl/g; b) drying the PET flakes at 160-200°C; c) melt-spinning the PET flakes at 250 to 270° C. to produce waste PET fibers; d) preparing regenerated hydrophobic PET fibers by impregnating the waste PET fibers with a water repellent; and e) mixing 30 to 70% by weight of the hydrophobic regenerated PET fiber and 30 to 70% by weight of the low-melting PET fiber, and needle punching to prepare a nonwoven fabric.
상기 발수제는 플루오르알킬아크릴레이트 공중합물일 수 있다.The water repellent may be a fluoroalkyl acrylate copolymer.
상기 소수성 재생 PET 섬유는 발수제를 5~20중량% 포함할 수 있다.The hydrophobic recycled PET fiber may include 5 to 20% by weight of a water repellent.
상기 소수성 재생 PET 섬유 및 저융점 PET 섬유의 길이는 32~64mm일 수 있고, 섬도는 2~10 데니어일 수 있다.The hydrophobic regenerated PET fiber and the low melting point PET fiber may have a length of 32 to 64 mm and a fineness of 2 to 10 denier.
본 발명의 다른 실시예는 상기 제조방법으로 제조된 차량용 휠 아치 라이너용 부직포이다.Another embodiment of the present invention is a nonwoven fabric for a wheel arch liner for a vehicle manufactured by the above manufacturing method.
상기 차량용 휠 아치 라이너용 부직포의 인장강도는 10Mpa 이상일 수 있다.The tensile strength of the nonwoven fabric for the wheel arch liner for a vehicle may be 10 Mpa or more.
본 발명은 소수성 재생 PET 섬유를 포함함으로써, 발수 및 발유 특성을 가지고, PET를 사용함으로써 재활용이 용이하다.The present invention includes hydrophobic regenerated PET fibers, so it has water and oil repellency properties, and recycling is easy by using PET.
도 1은 본 발명의 일실시예에 따른 차량용 휠 아치 라이너용 부직포 제조방법을 개략적으로 나타낸 도면이다.1 is a view schematically showing a method of manufacturing a nonwoven fabric for a wheel arch liner for a vehicle according to an embodiment of the present invention.
이하, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 구체적인 실시예를 통하여 보다 상세하게 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다.Hereinafter, specific embodiments of the present invention will be described in more detail so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein.
도 1은 본 발명의 일실시예에 따른 차량용 휠 아치 라이너용 부직포 제조방법을 개략적으로 나타낸 도면이다.1 is a view schematically showing a method of manufacturing a nonwoven fabric for a wheel arch liner for a vehicle according to an embodiment of the present invention.
도 1을 참조하면, 본 발명의 일 실시예는 a) 고유점도(IV)가 0.6~0.8dl/g인 폐 PET를 분쇄하여 3~5mm의 PET 플레이크를 제조하는 단계; b) 상기 PET 플레이크를 160~200℃에서 건조하는 단계; c) 상기 PET 플레이크를 250~270℃에서 용융 방사하여 폐 PET 섬유로 제조하는 단계; d) 상기 폐 PET 섬유를 발수제에 함침하여 소수성 재생 PET 섬유를 제조하는 단계; 및 e) 상기 소수성 재생 PET 섬유 30~70중량% 및 저융점 PET 섬유 30~70중량%를 혼합하고, 니들펀칭하여 부직포로 제조하는 단계;를 포함하는 차량용 휠 아치 라이너용 부직포 제조방법이다.Referring to FIG. 1, one embodiment of the present invention comprises the steps of a) preparing 3-5 mm PET flakes by grinding waste PET having an intrinsic viscosity (IV) of 0.6-0.8 dl/g; b) drying the PET flakes at 160-200°C; c) melt-spinning the PET flakes at 250 to 270° C. to produce waste PET fibers; d) preparing regenerated hydrophobic PET fibers by impregnating the waste PET fibers with a water repellent; and e) mixing 30 to 70% by weight of the hydrophobic regenerated PET fiber and 30 to 70% by weight of the low melting point PET fiber, and needle punching to prepare a nonwoven fabric.
상기 a) 단계는 고유점도(IV)가 0.6~0.8dl/g인 폐 PET를 3~5㎜로 분쇄하여 PET 플레이크를 얻는 공정이며, PET 플레이크는 미세할수록 비표면적이 높아 용융 속도가 향상될 수 있다.Step a) is a process of obtaining PET flakes by pulverizing waste PET having an intrinsic viscosity (IV) of 0.6 to 0.8 dl/g into 3 to 5 mm. there is.
상기 폐 PET의 고유점도(IV)가 상기 범위 내에서 폐 PET 섬유로 제조하는 것이 용이하므로, 상기 범위가 바람직하며, 상기 폐 PET는 폐 PET 병일 수 있다.Since the intrinsic viscosity (IV) of the waste PET is within the above range, it is easy to manufacture the waste PET fiber, so the above range is preferable, and the waste PET may be a waste PET bottle.
본 발명에서 상기 차량용 휠 아치 라이너용 부직포 제조방법은 상기 a) 단계와 b) 단계 사이에 투명 폐 PET 플레이크를 선별하는 투명플레이크 선별공정을 더 포함할 수 있다.In the present invention, the method for manufacturing a nonwoven fabric for a wheel arch liner for a vehicle may further include a transparent flake sorting process of sorting waste transparent PET flakes between steps a) and b).
상기 투명플레이크 선별공정은 분쇄된 PET 플레이크로부터 광학플레이크 선별기를 이용하여 투명 PET 플레이크만을 선별하여 순도를 높이기 위한 공정이며, 광학플레이크 선별기는 NIR CCD 카메라를 채용하여 투명 PET 플레이크만을 선별함으로써 고순도의 폐 PET 섬유를 제조하는 것이 가능하다.The transparent flake sorting process is a process for increasing purity by sorting only transparent PET flakes from pulverized PET flakes using an optical flake sorter. It is possible to make fibers.
상기 b) 단계는 상기 PET 플레이크를 160~200℃에서 건조하는 단계로서, 바람직하게는 180℃에서 1시간 건조하는 단계이다.Step b) is a step of drying the PET flakes at 160 to 200 ° C, preferably at 180 ° C for 1 hour.
상기 c) 단계는 건조된 상기 PET 플레이크를 용융 방사하여 폐 PET 섬유를 제조하는 단계로서, PET 플레이크를 용융기에 넣고, 250~270℃에서 용융 방사하여 진행될 수 있고, 방사된 폐 PET 섬유를 연신 또는 크림프화할 수 있다.Step c) is a step of melt-spinning the dried PET flakes to produce waste PET fibers. The PET flakes may be put into a melter and melt-spun at 250 to 270° C., and the spun waste PET fibers may be drawn or can be crimped.
상기 방사는 7~900홀을 가진 방사구금을 가진 방사구금을 이용하여 진행될 수 있다.The spinning may be performed using a spinneret having a spinneret having 7 to 900 holes.
상기 d) 단계는 상기 폐 PET 섬유를 발수제에 함침시켜, 소수성 재생 PET 섬유를 제조하는 단계로서, 상기 발수제는 C6의 불소화화합물일 수 있으며, 바람직하게는 플루오르알킬아크릴레이트 공중합물일 수 있다. 상기 플루오르알킬아크릴레이트 공중합물을 사용함으로써, 환경 오염을 방지할 수 있으며, 발수 효과를 향상시킬 수 이TEk.Step d) is a step of impregnating the waste PET fiber with a water repellent to prepare a hydrophobic regenerated PET fiber, and the water repellent may be a C6 fluorinated compound, preferably a fluoroalkyl acrylate copolymer. By using the fluoroalkyl acrylate copolymer, environmental pollution can be prevented and the water-repellent effect can be improved.
또한, 상기 플루오르알킬아크릴레이트는 발수, 발유 효과를 가지고 있으며, 특히 낮은 표면장력을 나타낸다.In addition, the fluoroalkyl acrylate has water repellent and oil repellent effects, and exhibits particularly low surface tension.
상기 함침은 상기 발수제가 함유된 욕조에 상기 폐 PET 섬유를 침지시켜 진행되고, 상기 발수제의 함량은 망글 롤러를 통해 조절될 수 있으며, 바람직하게는 소수성 재생 PET 섬유 100중량% 대비 발수제가 5~20중량% 포함될 수 있다. 이후, 80~180℃에서 10~60분간 건조한다.The impregnation proceeds by immersing the waste PET fiber in a bathtub containing the water repellent, and the content of the water repellent can be adjusted through a mangle roller. weight percent may be included. Then, it is dried for 10 to 60 minutes at 80 to 180 ° C.
상기 발수제의 함량이 상기 범위를 벗어나는 경우, 부직포 제조가 용이하지 않을 수 있어 상기 범위가 바람직하다.If the content of the water repellent is out of the above range, it may not be easy to manufacture a nonwoven fabric, so the above range is preferable.
상기 e) 단계는 상기 소수성 재생 PET 섬유 30~70중량% 및 저융점 PET 섬유 30~70중량%를 혼합하고 니들 펀칭하여 부직포를 제조하는 단계로서, 상기 소수성 재생 PET 섬유 및 저융점 PET 섬유의 길이는 32~64mm이고, 섬도는 2~10 데니어일 수 있고, 바람직하게는 51mm 및 6데니어일 수 있다.Step e) is a step of preparing a nonwoven fabric by mixing and needle punching 30 to 70% by weight of the hydrophobic regenerated PET fiber and 30 to 70% by weight of the low melting point PET fiber, the length of the hydrophobic regenerated PET fiber and the low melting point PET fiber is 32 to 64 mm, and the fineness may be 2 to 10 denier, preferably 51 mm and 6 denier.
상기 소수성 재생 PET의 함량이 30중량% 미만이면, 발수성이 저하될 수 있고, 70중량%를 초과하면 부직포의 내구성이 저하될 수 있다.If the content of the hydrophobic recycled PET is less than 30% by weight, water repellency may decrease, and if it exceeds 70% by weight, durability of the nonwoven fabric may decrease.
상기 소수성 재생 PET 섬유 및 저융점 PET 섬유의 길이 및 섬도가 상기 범위를 벗어나면 부직포 제조가 용이하지 않아 상기 범위가 바람직하다.If the length and fineness of the hydrophobic recycled PET fiber and the low melting point PET fiber are out of the above range, it is not easy to manufacture a nonwoven fabric, so the above range is preferable.
상기 저윰점 PET 섬유는 상기 소수성 재생 PET 섬유보다 낮은 융점을 갖는 섬유를 말하며, 상기 저융점 PET 섬유의 융점은 120~180℃이다.The low melting point PET fiber refers to a fiber having a lower melting point than the hydrophobic regenerated PET fiber, and the melting point of the low melting point PET fiber is 120 to 180 ° C.
본 발명의 또 다른 실시예는 상기 제조방법에 따라 차량용 휠 아치 라이너용 부직포이다.Another embodiment of the present invention is a nonwoven fabric for a wheel arch liner for a vehicle according to the above manufacturing method.
또한, 상기 차량용 휠 아치 라이너용 부직포의 인장강도는 10Mpa 이상일 수 있으며, 바람직하게는 11Mpa 이상일 수 있다. 상기 차량용 휠 아치 라이너용 부직포의 인장강도가 10Mpa 미만이면, 차량용 휠 아치 라이너의 내구성이 저하될 수 있어, 상기 범위가 바람직하다.In addition, the tensile strength of the nonwoven fabric for a wheel arch liner for a vehicle may be 10 Mpa or more, preferably 11 Mpa or more. If the tensile strength of the nonwoven fabric for a wheel arch liner for a vehicle is less than 10 Mpa, the durability of the wheel arch liner for a vehicle may deteriorate, and the above range is preferable.
이하, 본 발명에 따른 구체적인 실시예를 들어 설명한다.Hereinafter, specific embodiments according to the present invention will be described.
실시예Example
고유점도(IV)가 0.7dl/g인 PET 병을 분쇄하여 4mm의 PET 플레이크를 제조한다. 이후, 광학플레이크 선별기를 이용하여 투명 PET 플레이크만 선별한다. 이후, PET 플레이크를 180℃에서 1시간 동안 건조한다. 건조된 PET 플레이크를 260℃에서 800홀 방사 구금을 이용하여 용융 방사하고, 연신 및 크림프 공정을 거쳐 폐 PET 섬유를 제조한다. 이후, 상기 폐 PET 섬유를 플루오르알킬아크릴레이트 공중합물을 포함하는 욕조에 침지하고, 망글 롤러를 통해 침지량을 조절한다. 이후 150℃에서 30분간 건조하고, 컷팅하여 섬도 6데니어 및 길이 51mm인 소수성 재생 PET 섬유를 제조한다. 상기 소수성 재생 PET 섬유에 포함된 플루오르알킬아크릴레이트 공중합물의 중량은 소수성 재생 PET 섬유 100중량% 대비 10중량%이다.A PET bottle having an intrinsic viscosity (IV) of 0.7 dl/g was pulverized to produce 4 mm PET flakes. Thereafter, only transparent PET flakes are sorted using an optical flake sorter. Then, the PET flakes are dried at 180° C. for 1 hour. The dried PET flakes are melt-spun at 260° C. using an 800-hole spinneret, and waste PET fibers are produced through drawing and crimping processes. Thereafter, the waste PET fiber is immersed in a bathtub containing a fluoroalkyl acrylate copolymer, and the amount of immersion is controlled through a mangle roller. After drying at 150 ° C. for 30 minutes, and cutting to prepare a hydrophobic regenerated PET fiber having a fineness of 6 denier and a length of 51 mm. The weight of the fluoroalkylacrylate copolymer included in the hydrophobic regenerated PET fiber is 10% by weight relative to 100% by weight of the hydrophobic regenerated PET fiber.
이후, 섬도 6데니어 및 길이 51mm인 저융점 PET 섬유 및 소수성 재생 PET 섬유를 각각 50중량%씩 혼합하고, 니들펀칭하여 부직포를 제조한다.Thereafter, 50% by weight of each low-melting PET fiber and hydrophobic recycled PET fiber having a fineness of 6 denier and a length of 51 mm were mixed and needle punched to prepare a nonwoven fabric.
비교예 1Comparative Example 1
상기 실시예 1에서 저융점 PET 섬유 20중량% 및 소수성 재생 PET 섬유 80중량%를 혼합한 것을 제외하고는 상기 실시예 1과 동일한 방법으로 부직포를 제조하였다.A nonwoven fabric was prepared in the same manner as in Example 1, except that 20% by weight of low-melting PET fiber and 80% by weight of regenerated hydrophobic PET fiber were mixed in Example 1.
비교예 2Comparative Example 2
상기 실시예 1에서 저융점 PET 섬유 80중량% 및 소수성 재생 PET 섬유 20중량%를 혼합한 것을 제외하고는 상기 실시예 1과 동일한 방법으로 부직포를 제조하였다.A nonwoven fabric was prepared in the same manner as in Example 1, except that 80% by weight of low-melting PET fiber and 20% by weight of regenerated hydrophobic PET fiber were mixed in Example 1.
비교예 3Comparative Example 3
상기 실시예 1에서 저융점 PET 섬유 50중량% 및 일반 PET 섬유 50중량%를 혼합한 것을 제외하고는 상기 실시예 1과 동일한 방법으로 부직포를 제조하였다.A nonwoven fabric was prepared in the same manner as in Example 1, except that 50% by weight of low-melting PET fiber and 50% by weight of general PET fiber were mixed in Example 1.
실험예 1Experimental Example 1
상기 실시예 및 비교예 1 내지 3에서 제조된 부직포의 발수능을 하기 측정방법으로 측정하였고, 이에 대한 결과를 하기 표 1에 기재하였다.The water repellency of the nonwoven fabrics prepared in Examples and Comparative Examples 1 to 3 was measured by the following measurement method, and the results are shown in Table 1 below.
[측정방법][measurement method]
발수능 : 부직포에 물방울을 떨어뜨려 육안으로 검사하였다. 발수능의 결과에서 "○"는 물방울이 부직포의 표면에 부착되지 않고 바로 떨어지는 것을 의미하고, "△"는 물방울이 부직포의 표면에서 바로 떨어지지는 않으나, 부직포가 물에 젖지 않는 것을 의미하며, "×"는 부직포가 물에 젖는 것을 의미한다.Water repellency: Water droplets were dropped on the nonwoven fabric and visually inspected. In the result of the water repellency, "○" means that water droplets fall directly without attaching to the surface of the nonwoven fabric, and "△" means that water drops do not fall directly from the surface of the nonwoven fabric, but the nonwoven fabric does not get wet, " ×" means that the nonwoven fabric is wet with water.
상기 표 1을 참조하면, 소수성 재생 PET 섬유를 포함하지 않는 경우(비교예 3)은 발수능이 매우 낮은 것을 확인할 수 있으며, 소수성 재생 PET 섬유의 함량이 20중량%인 경우(비교예 2)는, 50중량%인 경우(실시예)보다 발수능이 저하된 것을 확인할 수 있다.Referring to Table 1, it can be seen that the water repellency is very low when the hydrophobic regenerated PET fiber is not included (Comparative Example 3), and when the content of the hydrophobic regenerated PET fiber is 20% by weight (Comparative Example 2) , It can be confirmed that the water repellency is lowered than in the case of 50% by weight (Example).
실험예 2Experimental Example 2
상기 실시예 및 비교예 1 내지 3에서 제조된 부직포의 내구성을 하기 측정방법으로 측정하였고, 이에 대한 결과를 하기 표 2에 기재하였다.The durability of the nonwoven fabrics prepared in Examples and Comparative Examples 1 to 3 was measured by the following measurement method, and the results are shown in Table 2 below.
[측정방법][measurement method]
인장강도(Mpa) : KS K ISO 9073-3 방법으로 측정하였다Tensile strength (Mpa): Measured according to KS K ISO 9073-3 method
상기 표 2를 참조하면, 소수성 재생 PET 섬유의 함량이 80중량%인 경우(비교예 1), 50중량%인 경우(실시예)보다 인장강도가 매우 낮은 것을 확인할 수 있다.Referring to Table 2, it can be seen that when the content of the hydrophobic regenerated PET fiber is 80% by weight (Comparative Example 1), the tensile strength is much lower than when it is 50% by weight (Example).
이와 같이, 본 발명은 소수성 재생 PET 섬유를 포함함으로써, 발수 및 발유 특성을 가지고, PET를 사용함으로써 재활용이 용이한 것을 알 수 있다.As such, it can be seen that the present invention has water and oil repellency properties by including hydrophobic regenerated PET fibers, and is easy to recycle by using PET.
이상으로 본 발명의 바람직한 실시예를 상세하게 설명하였다. 본 발명의 설명은 예시를 위한 것이며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자는 본 발명의 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태 쉽게 변형이 가능하다는 것을 이해할 수 있을 것이다.Above, preferred embodiments of the present invention have been described in detail. The description of the present invention is for illustrative purposes, and those skilled in the art will understand that other specific forms can be easily modified without changing the technical spirit or essential features of the present invention.
따라서, 본 발명의 범위는 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미, 범위 및 그 균등 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.Therefore, the scope of the present invention is indicated by the following claims rather than the detailed description, and all changes or modifications derived from the meaning, scope and equivalent concepts of the claims are interpreted as being included in the scope of the present invention. It should be.
Claims (6)
b) 상기 PET 플레이크를 160~200℃에서 건조하는 단계;
c) 상기 PET 플레이크를 250~270℃에서 용융 방사하여 폐 PET 섬유로 제조하는 단계;
d) 상기 폐 PET 섬유를 발수제에 함침하여 소수성 재생 PET 섬유를 제조하는 단계; 및
e) 상기 소수성 재생 PET 섬유 30~70중량% 및 저융점 PET 섬유 30~70중량%를 혼합하고, 니들펀칭하여 부직포로 제조하는 단계;
를 포함하는 차량용 휠 아치 라이너용 부직포 제조방법.
a) preparing PET flakes of 3 to 5 mm by grinding waste PET having an intrinsic viscosity (IV) of 0.6 to 0.8 dl/g;
b) drying the PET flakes at 160-200°C;
c) melt-spinning the PET flakes at 250 to 270° C. to produce waste PET fibers;
d) preparing regenerated hydrophobic PET fibers by impregnating the waste PET fibers with a water repellent; and
e) mixing 30 to 70% by weight of the hydrophobic recycled PET fiber and 30 to 70% by weight of the low melting point PET fiber, and needle punching to prepare a nonwoven fabric;
Method for manufacturing a non-woven fabric for a vehicle wheel arch liner comprising a.
상기 발수제는 플루오르알킬아크릴레이트 공중합물인 것을 특징으로 하는 차량용 휠 아치 라이너용 부직포 제조방법.
According to claim 1,
The method of manufacturing a nonwoven fabric for a wheel arch liner for a vehicle, characterized in that the water repellent is a fluoroalkyl acrylate copolymer.
상기 소수성 재생 PET 섬유는 발수제를 5~20중량% 포함하는 것을 특징으로 하는 차량용 휠 아치 라이너용 부직포 제조방법.
According to claim 1,
The hydrophobic recycled PET fiber is a method for manufacturing a nonwoven fabric for a wheel arch liner for a vehicle, characterized in that it contains 5 to 20% by weight of a water repellent.
상기 소수성 재생 PET 섬유 및 저융점 PET 섬유의 길이는 32~64mm이고, 섬도는 2~10 데니어인 것을 특징으로 하는 차량용 휠 아치 라이너용 부직포 제조방법.
According to claim 1,
The hydrophobic recycled PET fiber and the low melting point PET fiber have a length of 32 to 64 mm and a fineness of 2 to 10 denier.
A nonwoven fabric for a wheel arch liner for a vehicle manufactured by the manufacturing method of any one of claims 1 to 4.
상기 차량용 휠 아치 라이너용 부직포의 인장강도는 10Mpa 이상인 것을 특징으로 하는 차량용 휠 아치 라이너용 부직포.According to claim 5,
A nonwoven fabric for a wheel arch liner for a vehicle, characterized in that the tensile strength of the nonwoven fabric for a wheel arch liner for a vehicle is 10 Mpa or more.
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