KR20220051582A - Floor carpet for vehicle with excellent sound absorption and sound insulation - Google Patents

Floor carpet for vehicle with excellent sound absorption and sound insulation Download PDF

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KR20220051582A
KR20220051582A KR1020200135161A KR20200135161A KR20220051582A KR 20220051582 A KR20220051582 A KR 20220051582A KR 1020200135161 A KR1020200135161 A KR 1020200135161A KR 20200135161 A KR20200135161 A KR 20200135161A KR 20220051582 A KR20220051582 A KR 20220051582A
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sound
felt layer
layer
floor carpet
automobiles
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KR1020200135161A
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Korean (ko)
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KR102399099B1 (en
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박현준
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주식회사 서연이화
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/04—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets
    • B60N3/042—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets of carpets
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Passenger Equipment (AREA)
  • Carpets (AREA)
  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

The present invention relates to a floor carpet for a vehicle with excellent sound absorption and sound insulation. More specifically, all of a plurality of layers are made of PET fiber-based materials to recycle a discarded scrap and products again after forming and have reduced weight.

Description

흡음 및 차음 성능이 우수한 자동차용 플로어 카페트{FLOOR CARPET FOR VEHICLE WITH EXCELLENT SOUND ABSORPTION AND SOUND INSULATION}Floor carpet for automobiles with excellent sound absorption and sound insulation performance

본 발명은 흡음 및 차음 성능이 우수한 자동차용 플로어 카페트에 관한 것으로서, 보다 상세하게는 복수의 층을 모두 PET 섬유 계열의 소재로 구성되도록 함으로써 성형 후 버려지는 스크랩 및 제품들을 다시 재활용할 수 있을 뿐만 아니라, 경량화는 물론 흡음성능 및 차음성능까지 우수한 자동차용 플로어 카페트에 관한 것이다.The present invention relates to a floor carpet for automobiles having excellent sound absorption and sound insulation performance, and more particularly, by making all of the plurality of layers composed of a PET fiber-based material, it is possible to recycle scrap and products discarded after molding as well as recycle them. , It relates to a floor carpet for automobiles that is excellent in weight reduction as well as sound absorption and sound insulation performance.

자동차용 플로어 카페트는 바닥으로부터 전달되는 소음을 차단하기 위하여 플로어패널 등에 설치되고 있다.The floor carpet for automobiles is installed on a floor panel or the like in order to block noise transmitted from the floor.

기존 자동차용 플로어 카페트는 통상 스킨층, 폴리에틸렌(PE) 소재의 제1코팅층 및 에틸렌비닐아세테이트(EVA) 소재 제2코팅층, 이렇게 3층으로 구성된 것이 일반적이었다. 제1코팅층은 성형성을 위함이고 제2코팅층은 차음성을 위한 것으로, 통상 중량을 높여 이러한 성형성과 차음성을 제어하며 따라서 성능을 높이기 위해 중량 증가가 불가피하였으며, 그로 인해 차량연비 및 CO2발생에 좋지 않은 영향을 끼치게 되었다. 또한 각 층마다 다른 소재를 사용하므로, 제조공정이 복잡하고 재활용도 불가능하다는 한계가 있었다.Conventional floor carpets for automobiles generally consist of three layers: a skin layer, a first coating layer made of polyethylene (PE), and a second coating layer made of ethylene vinyl acetate (EVA). The first coating layer is for moldability and the second coating layer is for sound insulation, and it is usually necessary to increase the weight to control the moldability and sound insulation properties. had a bad influence. In addition, since different materials are used for each layer, the manufacturing process is complicated and there is a limitation that recycling is impossible.

대한민국 공개특허 제10-2007-0118731호 (공개일자 2017.12.18)Republic of Korea Patent Publication No. 10-2007-0118731 (published on December 18, 2017) 대한민국 공개특허 제10-2001-0066081호 (공개일자 2001.07.11.)Republic of Korea Patent Publication No. 10-2001-0066081 (published on July 11, 2001)

상기와 같은 문제점을 해결하기 위하여, 본 발명은 복수의 층을 모두 PET 섬유 계열의 소재로 함으로써 성형 후 버려지는 스크랩 및 제품들을 다시 재활용할 수 있을 뿐만 아니라, 경량화는 물론 흡음성능 및 차음성능까지 우수한 자동차용 플로어 카페트를 제공하는데 그 목적이 있다.In order to solve the above problems, the present invention makes it possible to recycle scraps and products discarded after molding by making all of the plurality of layers using PET fiber-based materials, as well as reducing weight and providing excellent sound absorption and sound insulation performance. An object of the present invention is to provide a floor carpet for automobiles.

이를 위하여, 본 발명에 따른 자동차용 플로어 카페트는 스킨층, 성형 펠트층 및 흡음 펠트층을 포함하며, 상기 플로어 카페트를 이루는 각 층은 PET 섬유로 이루어지며, 상기 스킨층의 면밀도는 300 내지 800 g/㎡이고, 상기 성형 펠트층의 면밀도는 200 내지 600 g/㎡ 이며, 상기 흡음 펠트층의 면밀도는 200 내지 1000 g/㎡ 이고, 상기 스킨층과 상기 성형 펠트층은 동시 니들펀칭하여 라미네이션 또는 불꽃 라미네이션하는 것을 특징으로 한다.To this end, the floor carpet for automobiles according to the present invention includes a skin layer, a molded felt layer and a sound-absorbing felt layer, each layer constituting the floor carpet is made of PET fiber, and the areal density of the skin layer is 300 to 800 g /m, the areal density of the molded felt layer is 200 to 600 g/m2, the areal density of the sound-absorbing felt layer is 200 to 1000 g/m2, and the skin layer and the molded felt layer are lamination or flame by simultaneous needle punching. It is characterized by lamination.

상기 PET 섬유는 저융점 섬유(Low Melting Fiber) 또는 재생 섬유일 수 있다.The PET fiber may be a low-melting fiber or a regenerated fiber.

상기 성형 펠트층 또는 상기 흡음 펠트층은 재생 섬유 60 내지 70 중량%, 저융점 섬유 30 내지 40 중량%일 수 있다.The molded felt layer or the sound-absorbing felt layer may be 60 to 70% by weight of regenerated fibers, 30 to 40% by weight of low-melting fibers.

또한, 흡음성능을 높이기 위하여, 상기 성형 펠트층 또는 상기 흡음 펠트층은 직경 1 내지 20 ㎛ 이하의 극세사를 더 포함할 수 있다.In addition, in order to increase the sound-absorbing performance, the molded felt layer or the sound-absorbing felt layer may further include microfibers having a diameter of 1 to 20 μm or less.

상기 성형 펠트층의 두께는 0.1 내지 5 ㎜, 상기 흡음 펠트층의 두께는 5 내지 20 ㎜ 일 수 있다.The thickness of the molded felt layer may be 0.1 to 5 mm, the thickness of the sound-absorbing felt layer may be 5 to 20 mm.

상기 성형 펠트층과 상기 흡음 펠트층은 PE 파우더 또는 PE 필름을 이용하여 라미네이션할 수 있다.The molded felt layer and the sound-absorbing felt layer may be laminated using PE powder or PE film.

본 발명에 따른 자동차용 플로어 카페트는 복수의 층을 이루는 소재들을 모두 PET 계열 섬유로 함으로써 성형 후 버려지는 스크랩 및 제품들을 다시 성형 펠트나 흡음 펠트 등으로 재활용할 수 있는 효과가 있다.The floor carpet for automobiles according to the present invention has the effect of recycling scraps and products discarded after molding into molded felt or sound-absorbing felt again by using all of the materials constituting a plurality of layers as PET-based fibers.

또한 본 발명에 따른 자동차용 플로어 카페트는 종래의 차음성능을 위해 사용하는 코팅층을 삭제함으로써 경량화가 가능하며, 그럼에도 흡음성능이 우수할 뿐더러, 차량의 STEEL에 접한 상태에서는 차음성능까지 우수한 효과가 있다.In addition, the floor carpet for automobiles according to the present invention can be reduced in weight by removing the coating layer used for conventional sound insulation performance, and nevertheless, it has excellent sound absorption performance and excellent sound insulation performance in a state in contact with the steel of the vehicle.

도 1은 본 발명에 따른 자동차용 플로어 카페트의 개략적인 단면도.
도 2는 본 발명에 따라 제조한 실제 자동차용 플로어 카페트 사진.
도 3은 본 발명에 따른 펠트층의 중량 및 조성 별 물성 그래프.
도 4는 극세사 유무에 따른 흡음 성능 그래프.
도 5는 본 발명의 실시예와 비교예의 흡음 성능 그래프.
도 6은 본 발명의 실시예와 비교예의 차음 성능 그래프.1 is a schematic cross-sectional view of a floor carpet for a vehicle according to the present invention.
Figure 2 is a photograph of a floor carpet for an actual vehicle manufactured according to the present invention.
3 is a graph of physical properties by weight and composition of a felt layer according to the present invention.
Figure 4 is a graph of the sound absorption performance according to the presence or absence of microfibers.
5 is a graph of the sound absorption performance of Examples and Comparative Examples of the present invention.
6 is a graph of sound insulation performance of Examples and Comparative Examples of the present invention.

이하, 도면을 참고로 하여 본 발명의 실시예를 상세히 설명하도록 한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

본 발명에 있어 첨부된 도면은 종래 기술과의 차별성 및 명료성, 그리고 기술 파악의 편의를 위해 과장된 표현으로 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어로써, 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있으므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 기술적 내용을 토대로 내려져야 할 것이다. 한편, 실시예는 본 발명의 청구범위에 제시된 구성요소의 예시적 사항에 불과하고, 본 발명의 권리범위를 한정하는 것이 아니며, 권리범위는 본 발명의 명세서 전반에 걸친 기술적 사상을 토대로 해석되어야 한다.In the present invention, the accompanying drawings may be shown in exaggerated expressions for the convenience of understanding the technology, and for differentiation and clarity from the prior art. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator, so definitions of these terms should be made based on the technical content throughout this specification. will be. On the other hand, the embodiments are merely exemplary matters of the components presented in the claims of the present invention, do not limit the scope of the present invention, the scope of the rights should be interpreted based on the technical idea throughout the specification of the present invention. .

도 1은 본 발명에 따른 본 발명에 따른 자동차용 플로어 카페트(10)의 개략적인 단면도로서, 원단인 스킨층(100), 성형 펠트층(200) 및 흡음 펠트층(300)을 포함하여 이루어질 수 있다. 1 is a schematic cross-sectional view of a floor carpet 10 for automobiles according to the present invention according to the present invention. there is.

종래에는 스킨층과 다른 소재의 코팅층을 사용하였기에 재활용이 불가능하였으나, 본 발명은 상기 플로어 카페트(10)를 이루는 각 층이 모두 PET 소재의 섬유로 이루어지므로, 성형 후 버려지는 스크랩 및 제품들을 다시 성형 펠트나 흡음 펠트 등으로 재활용할 수 있다. Conventionally, recycling was impossible because a coating layer of a material different from the skin layer was used. However, in the present invention, since each layer constituting the floor carpet 10 is made of PET material fibers, scrap and products discarded after molding are re-molded. It can be recycled into felt or sound-absorbing felt.

또한 본 발명은 종래부터 차음성능을 위해 사용해 오던 상당한 중량의 코팅층(차음층)을 제외함으로써 경량화 및 제조공정의 단순화가 가능할 뿐더러 그럼에도 여전히 우수한 흡음성능을 유지할 수 있는 특징을 가진다.In addition, the present invention has the characteristics of being able to reduce the weight and simplify the manufacturing process by excluding the coating layer (sound insulating layer) of a considerable weight that has been conventionally used for sound insulation performance, and still maintain excellent sound absorption performance.

이를 위하여, 본 발명에 따른 자동차용 플로어 카페트(10)는 성형 펠트층(200) 및 흡음 펠트층(300)의 면밀도가 서로 상이하여야 하며, 보다 구체적으로는 상기 스킨층(100)의 면밀도는 200 내지 800 g/㎡ 인 것이 바람직하고, 상기 성형 펠트층(200)의 면밀도는 200 내지 600 g/㎡인 것이 바람직하며, 상기 흡음 펠트층(300)의 면밀도는 200 내지 1000 g/㎡ 인 것이 바람직하다.To this end, in the floor carpet 10 for automobiles according to the present invention, the areal density of the molded felt layer 200 and the sound-absorbing felt layer 300 should be different from each other, and more specifically, the areal density of the skin layer 100 is 200 It is preferable that it is to 800 g/m2, and the areal density of the molded felt layer 200 is preferably 200 to 600 g/m2, and the areal density of the sound-absorbing felt layer 300 is preferably 200 to 1000 g/m2. Do.

상기 스킨층(100)은 부직포일 수 있으며, 상기 스킨층(100), 성형 펠트층(200) 및 흡음 펠트층(300)을 구성하는 PET 섬유는 저융점 섬유(Low Melting Fiber), 재생 섬유 또는 이들의 혼합일 수 있다. The skin layer 100 may be a non-woven fabric, and the PET fibers constituting the skin layer 100, the molded felt layer 200 and the sound-absorbing felt layer 300 are low melting point fibers, regenerated fibers, or It may be a mixture of these.

하기 표 1 및 도 3은 PET 섬유로 이루어진 펠트층의 면밀도 및 조성(rPET, LM)에 따른 물성(인장강도, 신율)의 차이를 보여주고 있다.Tables 1 and 3 below show differences in physical properties (tensile strength, elongation) according to the areal density and composition (rPET, LM) of the felt layer made of PET fibers.

NO.NO. 면밀도
(g/㎡)areal
(g/m2) 비율(중량%)Ratio (wt%) 인장강도(MPa)Tensile strength (MPa) 신율(%)Elongation (%) rPETrPET LMLM 1One 200200 7070 3030 1.21.2 29.6629.66 22 200200 6060 4040 2.22.2 19.7819.78 33 200200 4040 6060 1.81.8 20.0720.07 44 200200 3030 7070 2.32.3 23.4123.41 55 400400 7070 3030 1.81.8 17.1417.14 66 400400 6060 4040 3.13.1 19.3819.38 77 400400 4040 6060 3.23.2 24.124.1 88 400400 3030 7070 3.33.3 24.2924.29 99 600600 7070 3030 1.81.8 38.5238.52 1010 600600 6060 4040 3.73.7 20.8520.85 1111 600600 4040 6060 3.83.8 18.8118.81 1212 600600 3030 7070 4.44.4 21.8321.83 1313 800800 7070 3030 3.53.5 32.332.3 1414 800800 6060 4040 5.85.8 19.0319.03 1515 800800 4040 6060 5.85.8 21.521.5 1616 800800 3030 7070 6.56.5 22.7322.73

상기 표 1 및 도 3에서 확인할 수 있듯이, 신율은 LM 30 중량%일 때가 매우 우수함을 알 수 있다. As can be seen in Table 1 and Figure 3, it can be seen that the elongation is very excellent when the LM is 30 wt%.

또한 인장강도는 LM 함량이 높을수록 높아지며, 일 예로 LM 40 중량%일 때 30 중량% 대비 1 내지 2 MPa 정도 높아지며, LM 60 ~ 70 중량%일 경우 40 중량% 대비 1 MPa 이하 수준으로만 증가함을 할 수 있다. 특별히, 면밀도 600 g/㎡, LM 30 중량%일 때 신율이 현저하게 증가함을 알 수 있다. In addition, the tensile strength increases as the LM content increases. For example, when the LM content is 40 wt%, it increases by 1 to 2 MPa compared to 30 wt%, and when the LM is 60 to 70 wt%, it increases only to a level of 1 MPa or less compared to 40 wt%. can do. In particular, it can be seen that the elongation is significantly increased when the areal density is 600 g/m 2 and LM is 30% by weight.

결국, 경제성을 고려하면 가격이 높은 LM 량을 최소하여야 하겠으나, 물성을 고려할 때 LM 30 내지 40 중량%일 때가 가장 바람직하다.After all, in consideration of economic feasibility, it is necessary to minimize the amount of expensive LM, but when considering physical properties, it is most preferable to use 30 to 40 wt% of LM.

상기 성형 펠트층(200) 또는 흡음 펠트층(300)는 흠음성능을 보다 높이기 위해 올레핀계 소재(바람직하게는 PET 소재)의 직경 1 내지 20 ㎛ 이하의 극세사를 더 포함할 수 있다. 도 4는 극세사 유무에 따른 흡음성능의 차이를 보여주고 있다. 이러한 성능 차이는 극세사가 공기 유동저항을 더욱 높여 주므로, 흡음 성능을 보다 향상시킬 수 있도록 한다. 상기 극세사는 고온 성형 시 유리한 PET 소재인 것이 바람직하다. The molded felt layer 200 or the sound-absorbing felt layer 300 may further include microfibers having a diameter of 1 to 20 μm or less of an olefin-based material (preferably a PET material) in order to further improve sound-absorbing performance. 4 shows the difference in sound absorption performance according to the presence or absence of microfibers. This difference in performance allows the microfiber to further increase the air flow resistance, so that the sound absorption performance can be further improved. The microfiber is preferably a PET material advantageous for high-temperature molding.

상기 스킨층(100)의 두께는 0.1 내지 10 ㎜ 이하일 수 있다.The thickness of the skin layer 100 may be 0.1 to 10 mm or less.

상기 성형 펠트층(200)의 두께는 0.1 내지 5 ㎜ 이하인 것이 바람직한데, 이는 상기 두께 범위일 때 성형성에 있어 유리할 수 있다.It is preferable that the thickness of the molded felt layer 200 is 0.1 to 5 mm or less, which may be advantageous in moldability when the thickness is in the range.

또한, 상기 흡음 펠트층(300)의 두께는 5 내지 20 ㎜ 인 것이 바람직한데, 이는 상기 두께 범위일 때 흠음성에 있어 유리할 수 있다.In addition, the thickness of the sound-absorbing felt layer 300 is preferably 5 to 20 mm, which may be advantageous in sound insulation when the thickness range.

본 발명에 따른 플로어 카페트(10)는 각 층이 모두 PET 섬유로 이루어지는 바, 특별히 스킨층(100)과 성형 펠트층(200)을 동시 니들펀칭하여 라미네이션하거나 불꽃 라미네이션할 수 있으며, 이를 통해 제조공정의 효율성을 보다 높일 수 있다.In the floor carpet 10 according to the present invention, each layer is made of PET fiber, and in particular, the skin layer 100 and the molded felt layer 200 can be lamination or flame lamination by simultaneous needle punching, through which the manufacturing process can further increase the efficiency of

또한, 상기 성형 펠트층(200)과 상기 흡음 펠트층(300)은 PE 파우더 또는 PE 필름을 이용하여 라미네이션할 수 있다.In addition, the molded felt layer 200 and the sound-absorbing felt layer 300 may be laminated using PE powder or PE film.

[제조예][Production Example]

1. 하기 표 2와 같은 조성을 가지는 스킨층, 성형 펠트층 및 흡음 펠트층으로 이루어지는 본 발명에 따른 자동차용 플로어 카페트(실시예)를 제조하였다.1. A floor carpet for automobiles (Example) according to the present invention comprising a skin layer, a molded felt layer and a sound-absorbing felt layer having the composition shown in Table 2 below was prepared.

구분division 면밀도areal 조성Furtherance 두께(T)thickness (T) 스킨층skin layer 350 g/㎡350 g/m2 LM PET 30 중량%, rPET 70%30 wt% LM PET, 70% rPET 22 성형 펠트층molded felt layer 400 g/㎡400 g/m2 LM PET 30 중량%, rPET 70%(PET 극세사 30 중량% 포함)LM PET 30% by weight, rPET 70% (including PET microfiber 30% by weight) 33 흡음 펠트층sound-absorbing felt layer 250 g/㎡250 g/m2 LM PET 30 중량%, rPET 70%(PET 극세사 30 중량% 포함)LM PET 30% by weight, rPET 70% (including PET microfiber 30% by weight) 1010

2. 비교 평가를 위하여, 하기 표 3와 같은 조성을 가지는 스킨층, 성형 코팅층 및 차음 코팅층으로 이루어지는 종래의 자동차용 플로어 카페트(비교예)를 제조하였다.2. For comparative evaluation, a conventional automotive floor carpet (comparative example) comprising a skin layer, a molding coating layer, and a sound insulation coating layer having the composition shown in Table 3 was prepared.

구분division 면밀도areal 조성Furtherance 두께(T)thickness (T) 스킨층skin layer 600 g/㎡600 g/m2 LM PET 30 중량%, rPET 70%LM PET 30% by weight, rPET 70% 33 성형 코팅층molded coating layer 200 g/㎡200 g/m2 PEPE 0.50.5 차음 코팅층sound insulation layer 1000 g/㎡1000 g/m2 EVA(Ethylene-Vinyl Acetate)EVA (Ethylene-Vinyl Acetate) 1.51.5

[실험예][Experimental example]

1. 흡음성능 평가1. Sound absorption performance evaluation

상기 제조한 실시예 및 비교예의 흠음성능을 평가하기 위하여 균일한 음압 분포를 가진 소형 잔향실에서 ISO 354 를 만족하는 랜덤 입사 방식평가를 진행 하였다.In order to evaluate the sound insulation performance of the Examples and Comparative Examples, a random incidence method satisfying ISO 354 was evaluated in a small reverberation room having a uniform sound pressure distribution.

상기 흡음성능 평가 결과는 도 5와 같으며, 본 발명에 따른 실시예가 종래의 비교예보다 전체적인 주파수 범위에서 보다 우수한 흡음성능을 가짐을 확인할 수 있었다.The sound absorption performance evaluation result is as shown in FIG. 5, and it can be confirmed that the embodiment according to the present invention has better sound absorption performance in the overall frequency range than the conventional comparative example.

2. 차음성능 평가2. Sound insulation performance evaluation

상기 제조한 실시예 및 비교예의 차음성능 평가는 자체의 차음성능 및 하기 표 4의 물성을 가지는 스틸에 부착한 상태에서의 차음성능을 구분하여 실시하였다. 참고로, 상기 스틸의 물성은 다음과 같다. The sound insulation performance evaluation of the Examples and Comparative Examples prepared above was carried out by dividing the sound insulation performance and the sound insulation performance in the state of being attached to the steel having the physical properties shown in Table 4 below. For reference, the physical properties of the steel are as follows.

- Density : 7.85 g/cm, Thickness : 0.0008 mm, Area density : 6.28 gsm- Density : 7.85 g/cm, Thickness : 0.0008 mm, Area density : 6.28 gsm

본 차음성능 평가는 소형 잔향실대 무향실에서 SAE J1400 을 만족하는 Sound Intensity Method 방식으로 차음성능 측정을 하였다.In this evaluation of sound insulation performance, sound insulation performance was measured in a small reverberation chamber versus an anechoic chamber by the Sound Intensity Method method that satisfies SAE J1400.

상기 차음성능 평가 결과는 도 6와 같으며, 본 발명에 따른 실시예 자체만의 단품인 경우 차음층에 해당하는 구성이 존재하지 않으므로 비교예 대비 성능이 좋지 않았으나, 스틸에 부착한 경우에는 차음성능이 현저하게 개선되어, 특정 주파수 범위에서는 비교예보다 더욱 우수함을 확인할 수 있었다.The sound insulation performance evaluation result is as shown in FIG. 6 , and in the case of a single unit of the embodiment itself according to the present invention, there is no configuration corresponding to the sound insulation layer, so the performance was not good compared to the comparative example. However, when attached to steel, the sound insulation performance This was remarkably improved, and it was confirmed that it was more excellent than the comparative example in a specific frequency range.

상술한 바와 같이, 본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 기초로 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해해야 한다. 따라서 본 발명의 진정한 기술적 보호범위는 이하 기술할 특허청구범위에 의하며, 상술한 발명의 구체적 내용을 토대로 정해져야 할 것이다.As described above, the present invention has been described with reference to the embodiment shown in the drawings, but this is merely exemplary, and various modifications and equivalent other embodiments are possible based on common knowledge in the field to which the subject technology belongs. should understand Therefore, the true technical protection scope of the present invention depends on the claims to be described below, and should be determined based on the specific content of the above-described invention.

10 : 플로어 카페트
100 : 스킨층
200 : 성형 펠트층
300 : 흡음 펠트층10 : floor carpet
100: skin layer
200: molded felt layer
300: sound-absorbing felt layer

Claims (7)

스킨층, 성형 펠트층 및 흡음 펠트층을 포함하는 자동차용 플로어 카페트에 있어서,
상기 플로어 카페트를 이루는 각 층이 PET 섬유의 소재로 이루어지며,
상기 스킨층의 면밀도는 300 내지 800 g/㎡이고,
상기 성형 펠트층의 면밀도는 200 내지 600 g/㎡ 이며,
상기 흡음 펠트층의 면밀도는 200 내지 1000 g/㎡ 이고,
상기 스킨층과 상기 성형 펠트층은 동시 니들펀칭하여 라미네이션 또는 불꽃 라미네이션한 것을 특징으로 하는, 자동차용 플로어 카페트.
In the floor carpet for automobiles comprising a skin layer, a molded felt layer and a sound-absorbing felt layer,
Each layer constituting the floor carpet is made of a material of PET fiber,
The areal density of the skin layer is 300 to 800 g/m 2 ,
The areal density of the molded felt layer is 200 to 600 g/m 2 ,
The areal density of the sound-absorbing felt layer is 200 to 1000 g/m2,
The skin layer and the molded felt layer are lamination or flame lamination by simultaneous needle punching, the floor carpet for automobiles.
 제1항에 있어서,
상기 PET 섬유는 저융점 섬유(Low Melting Fiber) 또는 재생 섬유인 것을 특징으로 하는, 자동차용 플로어 카페트.
The method of claim 1,
The PET fiber is a low-melting fiber (Low Melting Fiber) or recycled fiber, characterized in that, floor carpet for automobiles.
 제2항에 있어서,
상기 성형 펠트층 또는 상기 흡음 펠트층은 재생 섬유 60 내지 70 중량%, 저융점 섬유 30 내지 40 중량%인 것을 특징으로 하는, 자동차용 플로어 카페트.
3. The method of claim 2,
The molded felt layer or the sound-absorbing felt layer is characterized in that 60 to 70% by weight of regenerated fibers and 30 to 40% by weight of low-melting fiber, floor carpet for automobiles.
 제1항에 있어서,
상기 성형 펠트층 또는 상기 흡음 펠트층은 직경 1 내지 20 ㎛ 이하의 극세사를 더 포함하는 것을 특징으로 하는, 자동차용 플로어 카페트.
The method of claim 1,
The molded felt layer or the sound-absorbing felt layer is a floor carpet for automobiles, characterized in that it further comprises microfibers having a diameter of 1 to 20 μm or less.
 제1항에 있어서,
상기 성형 펠트층의 두께는 0.1 내지 5 ㎜ 인 것을 특징으로 하는, 자동차용 플로어 카페트.
According to claim 1,
The thickness of the molded felt layer is 0.1 to 5 mm, characterized in that the floor carpet for automobiles.
 제1항에 있어서,
상기 흡음 펠트층의 두께는 5 내지 20 ㎜ 인 것을 특징으로 하는, 자동차용 플로어 카페트.
According to claim 1,
The sound-absorbing felt layer has a thickness of 5 to 20 mm, characterized in that the floor carpet for automobiles.
 제1항에 있어서,
상기 성형 펠트층과 상기 흡음 펠트층은 PE 파우더 또는 PE 필름을 이용하여 라미네이션한 것을 특징으로 하는, 자동차용 플로어 카페트. The method of claim 1,
The molded felt layer and the sound-absorbing felt layer is characterized in that the laminated using PE powder or PE film, floor carpet for automobiles.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010066081A (en) 1999-12-31 2001-07-11 이계안 Carpet structure for automobile
KR20070118731A (en) 2006-06-13 2007-12-18 주식회사 코오롱 Material for absorbing sound
KR20140140668A (en) * 2013-05-29 2014-12-10 원풍물산주식회사 Engine Under Cover Material and Engine Under Cover Produced with the Same
KR20180025731A (en) * 2016-09-01 2018-03-09 두올산업(주) Composite with excellent recycle and lightweight property and automobile floor carpet using the same
KR20180130027A (en) * 2017-05-25 2018-12-06 현대자동차주식회사 Floor Carpet for vehicles and manufacture method thereof
KR20190005022A (en) * 2017-07-05 2019-01-15 주식회사 휴비스 Automotive Floor Carpet With Excellent Environmental Resistance And Moldability
KR20190037024A (en) * 2017-09-28 2019-04-05 원풍물산주식회사 Vehicle interior material of multi-layer having Perforated film and synthetic resin powder and manufacturing method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010066081A (en) 1999-12-31 2001-07-11 이계안 Carpet structure for automobile
KR20070118731A (en) 2006-06-13 2007-12-18 주식회사 코오롱 Material for absorbing sound
KR20140140668A (en) * 2013-05-29 2014-12-10 원풍물산주식회사 Engine Under Cover Material and Engine Under Cover Produced with the Same
KR20180025731A (en) * 2016-09-01 2018-03-09 두올산업(주) Composite with excellent recycle and lightweight property and automobile floor carpet using the same
KR20180130027A (en) * 2017-05-25 2018-12-06 현대자동차주식회사 Floor Carpet for vehicles and manufacture method thereof
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KR20190037024A (en) * 2017-09-28 2019-04-05 원풍물산주식회사 Vehicle interior material of multi-layer having Perforated film and synthetic resin powder and manufacturing method thereof

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