KR20180060700A - package tray of a car having improved sound absorption and light weight and method for manufacturing thereof - Google Patents
package tray of a car having improved sound absorption and light weight and method for manufacturing thereof Download PDFInfo
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- KR20180060700A KR20180060700A KR1020160160497A KR20160160497A KR20180060700A KR 20180060700 A KR20180060700 A KR 20180060700A KR 1020160160497 A KR1020160160497 A KR 1020160160497A KR 20160160497 A KR20160160497 A KR 20160160497A KR 20180060700 A KR20180060700 A KR 20180060700A
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- 238000000034 method Methods 0.000 title claims abstract description 14
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- WZFUQSJFWNHZHM-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 WZFUQSJFWNHZHM-UHFFFAOYSA-N 0.000 description 3
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- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
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Images
Classifications
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
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- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
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Abstract
Description
본 발명은 흡음 성능이 개선되고 경량화된 패키지 트레이 및 이의 제조방법에 관한 것으로, 패키지 트레이의 재질과 구조를 개선하여 중량 절감과 함께 흡음 성능을 개선한 것으로, 재질면에서는 유리섬유 강화 폴리프로필렌(GFPP) 펠트와 PET 부직포를 적층시켜 니들펀칭하여 일체화한 보드를 사용하고, 구조면에서는 PET 부직포 면과 흡음패트에 공기층이 형성될 수 있도록 공기층(에어캡)을 형성함에 따라 흡음 성능의 향상시킨 것으로, 경량화와 흡음성능, 기계적 물성 모두 만족하는 패키지 트레이에 관한 것이다.The present invention relates to a package tray having improved sound absorption performance and reduced weight, and a method of manufacturing the package tray, which improves the material and structure of the package tray to improve the sound absorption performance as well as the weight. ) A sound absorbing performance is improved by forming an air layer (air cap) so that an air layer can be formed on a PET nonwoven fabric surface and a sound absorbing pad using a board in which a felt and a PET nonwoven fabric are laminated and needle punched and integrated. To a package tray which satisfies both weight saving, sound absorption performance, and mechanical properties.
자동차에서 패키지 트레이는 리어 시트 뒤쪽에 위치하여 소물류를 수납할 수 있고 차체 패키지 판넬을 커버링하며, 와관을 미려하게 장식하는 부품을 의미하는 것으로, 차량 실내 부품으로서의 차량 조립시 필요한 강성 이외에 우퍼 등이 장착되면서 우퍼의 떨림에 견딜 수 있는 높은 강성을 필요로 하는 등 기본적인 기계적 물성이 필요한 부품이며, 차량 트렁크 공간에서 유입되는 소음을 차단한다는 면에서 흡음 성능의 요구되는 부품이다.In a vehicle, a package tray means a part which is located at the rear of a rear seat and can accommodate small-sized logistics, covers the body package panel, and decorates the wing tube with a beautiful appearance. In addition to the rigidity required for assembling the vehicle as a vehicle interior part, It is a part that requires basic mechanical properties such as high rigidity that can withstand the wobble of the woofer while it is mounted. It is a part required for sound absorption performance in terms of blocking the noise introduced from the vehicle trunk space.
종래의 자동차 패키지 트레이는 강성 증대를 위해 FORM’G 구조 적용하고, 흡음성능 위해 초극세사 흡음재를 이면에 부착하는 형태로 제작되었으나, 중량이 상당하고 흡음 성능도 여전히 미약하였다(도 1). Conventional automobile package trays are made of FORM'G structure for increasing rigidity and made to attach microfiber sound absorbing material to the back side for sound absorption performance, but they are heavy and sound absorption performance is still weak (Fig. 1).
한국 공개특허 제2007-71351호는 저융점 섬유(LMF)와 고융점섬유(SF)로 이루어진 혼섬 부직포 펠트에 글라스 매트 보강재를 강화층으로 열접착시킨 자동차용 천정재로서, 폴리에스테르 니들펀칭 부직포 펠트, 상기 부직포 펠트에 강화층 및 폴리우레탄 폼으로 이뤄진 3층구조이며, 상기 강화층의 일면을 폴리우레탄 폼흡음재와 폴리에스테르 부직포 펠트에 접하도록 배치된 흡음재를 사용한 것을 특징으로 하는 자동차 내장재용 성형기재에 관한 것이다. 상기 기술은 부직포 펠트 - 글라스 매트 강화층 - PU 폼 흡음재의 3층 구조로서, 각 층을 열 접착시켜 내장용 성형 기재이나, 이를 패키지 트레이에 적용 시 여전히 흡음 성능이 취약하고 비중 면에서도 경량화를 구현하기 어려운 한계가 있다.Korean Patent Laid-Open No. 2007-71351 discloses an automobile ceiling material in which a glass mat reinforcing material is thermally adhered to a mixed nonwoven fabric felt made of a low melting point fiber (LMF) and a high melting point fiber (SF) by a reinforcing layer, and a polyester needle punching non- , A reinforcing layer and a polyurethane foam on the nonwoven fabric felt, and a sound absorbing material disposed on one surface of the reinforcing layer in contact with the polyurethane foam sound absorbing material and the polyester nonwoven felt. . The above technology is a three-layer structure of a nonwoven felt-glass mat reinforcing layer-PU foam sound-absorbing material. When the layers are thermally bonded to each other, There are difficult limits to do.
따라서, 종래의 패키지 트레이 보다 흡음 성능이 개선되면서도 경량화를 통한 비용 절감이 가능한 품질이 향상된 패키지 트레이가 요구되는 실정이다.Accordingly, there is a need for a package tray with improved quality that can be reduced in weight through weight reduction while improving sound absorption performance over a conventional package tray.
이에 본 발명자들은 패키지 트레이에서 요구되는 기계적 물성은 만족하되 흡음 성능의 개선과 경량화를 위해, 재질면에서는 유리섬유 강화 폴리프로필렌(GFPP) 펠트와 PET 부직포를 적층시켜 니들펀칭하여 일체화한 보드를 사용하고, 구조면에서는 PET 부직포 면과 극세사 흡음패트 사이에 공기층이 형성될 수 있도록 에어캡을 형성함에 따라 흡음 성능의 향상시키며 경량화를 구현할 수 있다는 것을 알게 되어 본 발명을 완성하기에 이르렀다.In order to improve the sound absorption performance and light weight, the inventors of the present invention used a board in which a glass fiber reinforced polypropylene (GFPP) felt and a PET nonwoven fabric were layered and needle punched and integrated to satisfy the mechanical properties required in the package tray The present invention has been accomplished on the basis of the fact that the air cap is formed so that an air layer can be formed between the PET nonwoven fabric surface and the microfine acoustic absorbent pad to improve the sound absorption performance and reduce the weight.
따라서, 본 발명의 목적은 흡음 성능이 개선되고 경량화된 패키지 트레이를 제공하는데 있다.Accordingly, it is an object of the present invention to provide a package tray with improved sound absorption performance and reduced weight.
또한, 본 발명의 다른 목적은 흡음 성능이 개선되고 경량화된 패키지 트레이의 제조방법을 제공하는데 있다.Another object of the present invention is to provide a method of manufacturing a package tray with improved sound absorption performance and reduced weight.
위와 같은 과제를 해결하기 위해, 본 발명은 스킨층; 상기 스킨층 일면에 형성된 접착필름층; 상기 접착필름층 일면에 형성된 유리섬유 강화 폴리프로필렌(GFPP) 펠트와 PET 부직포를 적층시켜 니들펀칭하여 일체화한 보드층; 및 상기 보드층 일면에 공기층을 형성하도록 부착된 흡음패드층을 포함하는 것을 특징으로 하는 흡음 성능이 개선되고 경량화된 패키지 트레이를 제공한다.In order to solve the above-mentioned problems, An adhesive film layer formed on one surface of the skin layer; A board layer formed by laminating a glass fiber reinforced polypropylene (GFPP) felt formed on one surface of the adhesive film layer and a PET nonwoven fabric and kneading the same by needle punching; And a sound absorbing pad layer formed on one side of the board layer so as to form an air layer.
또한, 본 발명은 (a) 유리섬유 강화 폴리프로필렌(GFPP) 펠트와 PET 부직포를 적층시켜 니들펀칭하여 일체화한 보드층을 제조하고 예열 압착하는 단계; (b) 상기 보드층의 유리섬유 강화 폴리프로필렌(GFPP) 펠트면에 접착필름과 스킨원단을 적층하고 압력을 가하지 않고 냉간 성형하는 단계; 및 (c) 상기 보드층 일면에 공기층을 포함하도록 흡음패드층을 형성하는 단계를 포함하는 것을 특징으로 하는 흡음 성능이 개선되고 경량화된 패키지 트레이의 제조방법을 제공한다.The present invention also provides a method for manufacturing a semiconductor device, comprising the steps of: (a) preparing a board layer in which glass fiber reinforced polypropylene (GFPP) felt and PET nonwoven fabric are laminated and needle- (b) laminating an adhesive film and a skin fabric on a felt surface of a glass fiber-reinforced polypropylene (GFPP) of the board layer and performing cold forming without applying pressure; And (c) forming a sound absorbing pad layer including an air layer on one side of the board layer.
본 발명에 따른 패키지 트레이는 유리섬유를 통한 보강 및 레이어의 변경을 통해 강성을 보강하였다.The package tray according to the present invention reinforced the rigidity through reinforcement through glass fiber and layer change.
또한, 본 발명에 따른 패키지 트레이는 종래의 패키지 트레이와 대비하여 두께 증대와 함께 흡음 성능을 향상되고, 흡음패드층을 사용되는 초극세사 흡음재의 적용 면적을 최소화 할 수 있어 경제적으로도 이점이 있다.In addition, the package tray according to the present invention has an increased thickness and an improved sound absorption performance as compared with the conventional package tray, and an economical advantage in that the application area of the microfiber absorbing material used can be minimized.
결국 본 발명은 강성 등의 기계적 물성은 만족시키되, 경량화 및 흡음 성능을 개선한 품질이 개선된 패키지 트레이를 제공할 수 있다.As a result, the present invention can provide a package tray which satisfies mechanical properties such as rigidity and is improved in lighter weight and sound absorption performance.
도 1은 종래의 패키지 트레이의 모습을 나타낸 것이다.
도 2는 종래의 패키지 트레이의 단면을 나타낸 것이다.
도 3(a)는 본 발명에 따른 일 태양으로서의 패키지 트레이의 단면을 나타낸 것이고, 도 3(b)는 흡음 성능을 향상을 위해 에어캡을 형성된 본 발명에 따른 다른 태양으로서의 패키지 트레이의 단면을 나타낸 것이다
도 4(a)는 실시예 3에서 제조한 패키지 트레이의 앞면을, 도 4(b)는 뒷면을 나타낸 것이다.
도 5는 비교예 1과 실시예 1에서 제조한 패키지 트레이에 대한 흡음 성능 결과를 나타낸 그래프이다.
도 6은 실시예 1과 실시예 3에서 제조한 패키지 트레이에 대한 흡음 성능 결과를 나타낸 그래프이다.
도 7은 실시예 4-1 내지 4-4와 비교예 1에서 제조한 패키지 트레이에 대한 흡음 성능 결과를 나타낸 그래프이다.
도 8은 실시예 4-1, 실시예 4-2, 실시예 5, 및 비교예 1에서 제조한 패키지 트레이에 대한 흡음 성능 결과를 나타낸 그래프이다.
도 9는 비교예 1, 실시예 1, 참고비교예 1, 참고실시예 1에서 제조한 패키지 트레이에 대한 흡음 성능 결과를 나타낸 그래프이다.1 shows a conventional package tray.
2 is a cross-sectional view of a conventional package tray.
3 (a) is a cross-sectional view of a package tray as an embodiment according to the present invention, and Fig. 3 (b) is a cross-sectional view of a package tray as another embodiment according to the present invention in which an air cap is formed for improving sound- will be
4 (a) is a front view of the package tray manufactured in the third embodiment, and FIG. 4 (b) is a rear view.
5 is a graph showing sound absorption performance results of the package tray manufactured in Comparative Example 1 and Example 1. Fig.
6 is a graph showing sound absorption performance results for the package tray manufactured in Example 1 and Example 3. Fig.
7 is a graph showing the results of sound absorption performance for the package trays manufactured in Examples 4-1 to 4-4 and Comparative Example 1. Fig.
8 is a graph showing sound absorption performance results for the package tray manufactured in Example 4-1, Example 4-2, Example 5, and Comparative Example 1. FIG.
9 is a graph showing the results of sound absorption performance of the package tray manufactured in Comparative Example 1, Example 1, Reference Comparative Example 1, and Reference Example 1.
이하에서 본 발명을 하나의 구현 예로서 보다 상세히 설명한다. Hereinafter, the present invention will be described in more detail as an embodiment.
현재 사용되는 천연섬유 강화보드로 제작된 패키지 트레이의 경우, 도 2에 나타낸 바와 같이, 천연섬유인 마를 이용하여 강성을 강화한 형태이다. 현재 사용되는 사양의 기재는 1600 g/m2이며, 두께는 1.6t이고, 총 중량은 2,250g의 스펙을 갖는다. 그러나, 이는 여전히 경량화와 흡음 성능에 한계가 있다. In the case of a package tray made of a natural fiber reinforced board currently used, the rigidity is enhanced by using a natural fiber, as shown in FIG. The specifications of currently used specifications are 1600 g / m 2, the thickness is 1.6 t, and the total weight has a specification of 2,250 g. However, this still has a limitation in weight reduction and sound absorption performance.
이에 본 발명에서는 종래의 패키지 트레이와 대비하여 강성 등은 동등하되, 경량화와 흡음 성능이 개선된 패키지 트레이를 제공하고자 한다. Accordingly, the present invention provides a package tray having the same rigidity as the conventional package tray, but with reduced weight and improved sound absorption performance.
구체적으로, 본 발명은 스킨층; 상기 스킨층 일면에 형성된 접착필름층; 상기 접착필름층 일면에 형성된 유리섬유 강화 폴리프로필렌(GFPP) 펠트와 PET 부직포를 적층시켜 니들펀칭하여 일체화한 보드층; 및 상기 보드층 일면에 공기층을 형성하도록 부착된 흡음패드층을 포함하는 것을 특징으로 하는 흡음 성능이 개선되고 경량화된 패키지 트레이를 제공한다. Specifically, the present invention relates to a skin layer, An adhesive film layer formed on one surface of the skin layer; A board layer formed by laminating a glass fiber reinforced polypropylene (GFPP) felt formed on one surface of the adhesive film layer and a PET nonwoven fabric and kneading the same by needle punching; And a sound absorbing pad layer formed on one side of the board layer so as to form an air layer.
본 발명에서는 폴리프로필렌-마의 혼섬펠트가 아닌 유리섬유 강화 폴리프로필렌(GFPP) 펠트와 PET 부직포를 적층시켜 니들펀칭하여 일체화한 보드층을 구현한다. 본 발명에서 사용하는 유리섬유 강화 폴리프로필렌(GFPP) 펠트의 경우 폴리프로필렌 50 ~ 70 중량%, 유리섬유 30 ~ 50 중량%를 혼합하여 종래에 알려진 방법으로서 카딩, 히팅, 포밍, 트림 과정을 거쳐서 얻은 것을 사용할 수 있다. In the present invention, a glass fiber-reinforced polypropylene (GFPP) felt and PET nonwoven fabric, which are not mixed with a polypropylene-hemp felt, are layered and needle-punched into a board layer integrated. In the case of the glass fiber-reinforced polypropylene (GFPP) felt used in the present invention, 50 to 70% by weight of polypropylene and 30 to 50% by weight of glass fiber are mixed to form a sheet, which is obtained by carding, heating, Can be used.
보다 구체적으로, 본 발명에서의 보드층은 유리섬유 강화 폴리프로필렌(GFPP) 펠트를 상면에 PET 부직포를 하면에 적층하고 니틀펀칭하여 일체화시킨 보드인 것으로서, 니들 펀칭을 통한 일체화로 인해 적층한 섬유간의 결속으로 융창성이 강화되어 강성을 증대시키고, 통기성을 부여하여 흡음 성능도 증대하게 된다. 이때 상기 보드층의 중량은 900 ~ 1300 g/m2이다. 도 3(a)는 본 발명에 따른 패키지 트레이의 단면을 나타낸 것이다. 이때 상기 스킨층은 부직포 재질이며, 접착필름층은 폴리프로필렌 필름 또는 핫멜트 필름로서, 스킨층과 보드층을 접착하기 위한 것으로, 당업계에서 사용되는 것이라면 반드시 이에 제한되지 않고 사용될 수 있다. More specifically, the board layer in the present invention is a board in which a glass fiber reinforced polypropylene (GFPP) felt is laminated on a lower surface of a PET nonwoven fabric on the lower surface thereof and knit-punched to form an integrated board. The rigidity is strengthened by the binding, and the rigidity is increased, and the breathability is also provided by increasing the breathability. The weight of the board layer is 900 to 1300 g / m 2 . 3 (a) shows a cross section of a package tray according to the present invention. At this time, the skin layer is a non-woven material and the adhesive film layer is a polypropylene film or a hot-melt film for adhering the skin layer and the board layer, and is not necessarily limited to those used in the art.
보다 바람직한 일 구현 예로서, 본 발명은 흡음 성능을 향상을 위해 에어캡을 형성할 수 있다. 도 3(b)는 흡음 성능을 향상을 위해 에어캡을 형성된 본 발명에 따른 패키지 트레이의 단면을 나타낸 것이다. 이때 공기층은 보드층의 일면에 리프트용 폼이 형성되고 흡음패드층을 루프 형태로 구현함으로써 형성될 수 있다.In a more preferred embodiment, the present invention can form an air cap to improve sound absorption performance. 3 (b) is a cross-sectional view of a package tray according to the present invention in which an air cap is formed to improve sound absorption performance. The air layer may be formed by forming a lift foam on one side of the board layer and implementing a sound absorbing pad layer in a loop shape.
이때 상기 흡음패드층은 폴리프로필렌(PP), 폴리에틸렌 테레프타레이트(PET), 또는 이들의 혼합 성분의 초극세사 흡음재를 사용할 수 있으며, 본 발명에서는 초극세사 흡음재의 적용 면적을 최소할 수 있다. At this time, Polypropylene (PP), polyethylene terephthalate (PET), or a mixture thereof can be used. In the present invention, the application area of the microfiber absorbing material can be minimized.
다음으로, 본 발명은 (a) 유리섬유 강화 폴리프로필렌(GFPP) 펠트와 PET 부직포를 적층시켜 니들펀칭하여 일체화한 보드층을 제조하고 이를 예열 압착하는 단계; 및 (b) 상기 보드층의 유리섬유 강화 폴리프로필렌(GFPP) 펠트면에 접착필름과 스킨원단을 적층하고 압력을 가하지 않고 냉간 성형하는 단계를 포함하는 것을 특징으로 하는 흡음 성능이 개선되고 경량화된 패키지 트레이의 제조방법을 제공한다. Next, the present invention provides a method for manufacturing a semiconductor device, comprising the steps of: (a) preparing a board layer in which glass fiber reinforced polypropylene (GFPP) felt and PET nonwoven fabric are laminated and needle- And (b) cold-forming the adhesive layer and the skin fabric on the surface of the glass-fiber-reinforced polypropylene (GFPP) layer of the board layer and applying pressure thereto without applying pressure. A method of manufacturing a tray is provided.
먼저, 상기 (a) 단계는 유리섬유 강화 폴리프로필렌(GFPP) 펠트와 PET 부직포를 적층시켜 니들펀칭하여 일체화한 보드층을 제조하고 이를 예열 압착하는 단계이다.First, in the step (a), a glass fiber reinforced polypropylene (GFPP) felt and a PET nonwoven fabric are laminated and needle-punched to form an integrated board layer, and then preheating the board layer.
보다 구체적으로, 유리섬유 강화 폴리프로필렌(GFPP) 펠트를 상면에 PET 부직포를 하면에 적층하고 니틀펀칭하여 일체화시킨다. 유리섬유 강화 폴리프로필렌(GFPP) 펠트를 2 이상의 복수층으로 적층하고 PET 부직포와 니들펀칭하여 일체화시킬 수도 있다. 유리섬유 강화 폴리프로필렌(GFPP) 펠트를 2 이상의 복수층으로 적층하여 니들펀칭하는 경우 단일층으로 적층했을 때보다 굴곡강도를 높일 수 있기 때문에 훨씬 우수한 강성을 얻을 수 있다. 이때, 예열 압착은 150 ~ 250℃에서 60 ~ 100초 동안 수행하여 최소 두께가2t로 형성하게 된다. More specifically, a glass fiber-reinforced polypropylene (GFPP) felt is laminated on the lower surface of a PET nonwoven fabric on the upper surface and knitted and punched to be integrated. The glass fiber reinforced polypropylene (GFPP) felt may be laminated in a plurality of layers of two or more and integrated with the PET nonwoven fabric by needle punching. When the glass fiber reinforced polypropylene (GFPP) felt is laminated by a plurality of layers of two or more layers and the needle punching is performed, the bending strength can be increased more than when a single layer is laminated. At this time, the preheating pressure bonding is performed at 150 to 250 ° C for 60 to 100 seconds to form a minimum thickness of 2t.
다음으로, 상기 (b) 단계는 상기 보드층의 유리섬유 강화 폴리프로필렌(GFPP) 펠트면에 접착필름과 스킨원단을 적층하고 냉간 성형하는 단계이다.Next, the step (b) is a step of laminating an adhesive film and a skin fabric on the glass fiber reinforced polypropylene (GFPP) felt side of the board layer and performing cold forming.
이때 냉간 성형은 60 ~ 80℃에서 70 ~ 90 초 동안 수행하되, 압력을 하지 않기에, 예열 압착으로 최소 두께가 2t인 기재의 두께가 3 ~ 4t로 로프팅(lofting)된다. 이처럼 냉간 성형으로 로프팅이 된 패키지 트레이 기재는 4t까지 두께가 증대되고, 흡음 성능을 더욱 향상된다.At this time, the cold forming is performed at 60 to 80 ° C for 70 to 90 seconds, and since the pressure is not applied, the thickness of the substrate having a minimum thickness of 2t is lofted to 3 to 4t by preheating. The package tray base material thus routed by the cold forming is increased in thickness up to 4t, and the sound absorption performance is further improved.
끝으로, 상기 보드층 일면에 공기층을 포함하도록 흡음패드층을 형성하는 (c) 단계를 수행한다. 즉, 보드층의 일면에 흡음패드를 리프팅할 수 있는 리프트용 폼을 형성하고 리프트용 폼을 지지대로 하여 흡음패드를 루프 형태로 구현하여 흡음패드층을 형성한다. Finally, a step (c) of forming a sound absorbing pad layer including an air layer on one side of the board layer is performed. That is, a lift foam capable of lifting a sound absorbing pad is formed on one surface of a board layer, and a sound absorbing pad is formed in a loop shape by using a lift foam as a support to form a sound absorbing pad layer.
이렇게 제조된 본 발명에 따른 패키지 트레이는 유리섬유를 통한 보강, 두께 증대를 통한 단면 증대로 흡음 성능이 향상되면서도 경량화를 구현하여, 종래의 패키지 트레이와 대비하여 품질이 개선된 패키지 트레이를 제공할 수 있다.The package tray according to the present invention thus manufactured can provide a package tray with improved quality compared to the conventional package tray by improving the sound absorption performance and increasing the weight by increasing the thickness of the package tray by reinforcing through the glass fiber and increasing the thickness have.
이하, 본 발명을 실시예를 통하여 더욱 상세히 설명한다. 그러나 이들 실시예는 본 발명을 예시하기 위한 것으로, 본 발명의 범위가 이들에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to examples. However, these examples are for illustrating the present invention, and the scope of the present invention is not limited thereto.
비교예Comparative Example 1: 천연섬유 1: natural fiber 강화보드를Reinforced board 사용한 경우 If used
폴리프로필렌 50 중량%와 마 50 중량%를 혼섬한 천연섬유 펠트(제품명: HS FELT, 제조사명: 한일내장)를 사용한 것으로, 도 2에 나타낸 바와 같이 폴리프로필렌 필름을 스킨층과 천염 섬유 펠트 사이에 적층하고, 폴리프로필렌 필름 일면에 흡음패드를 230 g/m2를 부착하여 종래의 패키지 트레이를 제조하였다. 이때 기재는 1,600 g/m2이고, 총 중량는 2,025 g으로, 예열 압착 및 냉간 성형하여 1.6 t이다.A natural fiber felt (product name: HS FELT, manufactured by Hanil Ind. Co., Ltd.) in which 50 wt% of polypropylene and 50 wt% of hemp are mixed is used. As shown in Fig. 2, a polypropylene film is sandwiched between a skin layer And a conventional package tray was manufactured by attaching a sound absorbing pad of 230 g / m 2 on one side of a polypropylene film. At this time, the base material is 1,600 g / m 2 and the total weight is 2,025 g, which is 1.6 t by preheating and cold forming.
실시예Example 1 One
유리섬유 강화 폴리프로필렌(GFPP) 펠트와 PET 부직포를 적층시켜 니들펀칭하여 일체화한 보드층을 제조하고 이를 200℃에서 80초 동안 예열 압착하여 최종 두께가 2t가 되도록 하였다. 이때 상기 유리섬유 강화 폴리프로필렌(GFPP) 펠트는 유리섬유가 40 중량%, 폴리프로필렌이 60 중량%를 포함하는 것을 사용하였다(제조사명: 세운). 이때 유리섬유 강화 폴리프로필렌(GFPP) 펠트는 글라스 섬유와 PP 섬유를 비율별로 혼합후 카딩기를 통해 웹(WEB)을 형성한 후 폭과 중량에 맞게 웹을 조정후 니들 펀칭 결속을 통해 제조되었다.Glass fiber reinforced polypropylene (GFPP) felt and PET nonwoven fabric were layered and needle-punched to form an integrated board layer. The board layer was preheated at 200 ° C for 80 seconds to have a final thickness of 2t. At this time, the glass fiber reinforced polypropylene (GFPP) felt used was one containing 40% by weight of glass fiber and 60% by weight of polypropylene (name of manufacturer). At this time, the glass fiber reinforced polypropylene (GFPP) felt was prepared by mixing the glass fiber and the PP fiber in proportions, forming a web through a carding machine, adjusting the web according to the width and weight, and then punching the needle.
다음으로, 상기 보드층의 유리섬유 강화 폴리프로필렌(GFPP) 펠트면에 핫 멜트 필름과 스킨원단을 적층 후 압력을 가하지 않고 80℃에서 80 초 동안 냉간 성형하여 최종 두께가 3t가 되도록 하였다. 마지막으로 PET 필름 일면에 흡음패드를 230 g/m2를 부착하여 도 3(a)의 패키지 트레이를 제조하였다.Next, a hot melt film and a skin fabric were laminated on the glass fiber-reinforced polypropylene (GFPP) felt surface of the board layer, and then cold-molded at 80 DEG C for 80 seconds without applying a pressure to obtain a final thickness of 3t. Lastly, a package tray of FIG. 3 (a) was manufactured by attaching a sound absorbing pad of 230 g / m 2 on one side of a PET film.
최종적으로, 기재는 1200 g/m2이고, 총량은 1735 g으로, 비교예 1과 대비하여 기재는 약 25%, 총 중량은 약 14.3% 감소시켰다.Finally, the substrate was 1200 g / m < 2 > and the total amount was 1735 g, which reduced the substrate by about 25% and the total weight by about 14.3% compared with Comparative Example 1.
실시예Example 2 2
실시예 1과 동일한 방법으로 제조하되, 냉간 성형시 80℃에서 80 초 동안 냉간 성형하여 최종 두께가 4t가 되도록 하였다.Was prepared in the same manner as in Example 1 except that it was cold-molded at 80 DEG C for 80 seconds in cold forming so that the final thickness was 4t.
비교예Comparative Example 2 2
실시예 1과 동일한 방법으로 제조하되, 냉간 성형시 80℃에서 80 초 동안 냉간 성형하여 최종 두께가 5t가 되도록 하였다.Was prepared in the same manner as in Example 1 except that it was cold-molded at 80 DEG C for 80 seconds in the cold forming so that the final thickness was 5t.
실험예Experimental Example 1: 물성 측정 1: Measurement of physical properties
상기 비교예 1,2 및 실시예 1,2에서 제조한 패키지 트레이 제조 과정에서에 준비한 보드층에 대해 하기 방법으로 기계적 물성을 측정하여, 그 결과를 표 1에 나타내었다. The mechanical properties of the board layer prepared in the preparation of the package tray of Comparative Examples 1, 2, and 1 and 2 were measured by the following methods, and the results are shown in Table 1.
(1) 굴곡강도의 측정: ASTM D 790 방법으로 측정하였다. (1) Measurement of flexural strength: Measured by the ASTM D 790 method.
(2) 굴곡탄성률의 측정: ASTM D 790 방법으로 측정하였다.(2) Measurement of flexural modulus: Measured by the ASTM D 790 method.
(g/m2)PP + Maptel
(g / m 2 )
(N)Flexural strength
(N)
(Mpa)Flexural modulus
(Mpa)
(N)Flexural strength
(N)
(g/m2)GFPP felt
(g / m 2 )
(g/m2)PET nonwoven
(g / m 2 )
(N)Flexural strength
(N)
(Mpa)Flexural modulus
(Mpa)
(N)Flexural strength
(N)
상기 표 1의 통해, 본 발명에 따른 실시예 1의 패키지 트레이의 경우 종래의 패키지 트레이인 비교예 1과 기계적 강성으로서 굴곡강도, 굴곡탄성률이 동등 이상으로 우수하다는 것을 확인할 수 있었다. 다만 본 발명에 따른 패키지 트레이라하더라도 두께가 4t 초과의 경우 기계적 물성의 저하가 있기에 냉간 성형하여 3 ~ 4t를 만족시키는 것이 바람직하다.It can be seen from Table 1 that the package tray of Example 1 according to the present invention is superior in flexural strength and flexural modulus as compared with Comparative Example 1 which is a conventional package tray I could confirm. However, even if the package tray according to the present invention has a thickness exceeding 4t, it is preferable to perform cold forming to satisfy 3 to 4t because there is a decrease in mechanical properties.
실시예Example 3 3
상기 실시예 1과 동일한 방법으로 제조하되, 보드층의 일면에 흡음패드를 리프팅할 수 있는 리프트용 폼을 형성하고 리프트용 폼을 지지대로 하여 흡음패드를 루프 형태로 구현하여, 도 3의(b)에서 나타낸 패키지 트레이를 제조하였다. 도 4(a)는 실시예 3의 패키지 트레이의 앞면을 도 4(b)는 뒷면을 나타낸 것이다. A lift foam for lifting a sound absorbing pad is formed on one side of a board layer and a sound absorbing pad is formed in a loop shape using a lift foam as a support, ) Was prepared. 4 (a) is a front view of the package tray of the third embodiment, and FIG. 4 (b) is a rear view thereof.
실험예Experimental Example 2: 흡음 성능의 측정 2: Measurement of sound absorption performance
실험예Experimental Example
2-1: 흡음 테스트 1 2-1:
비교예 1과 실시예 1에서 제조한 패키지 트레이에 대하여 ISO 354 (잔향실법흡음률 측정방법)에 따라 소형 잔향실 (ALPHA CABIN)을 이용하여 흡음 성능을 측정하여, 그 결과를 도 5에 나타내었다.Sound absorption performance was measured using a small reverberation chamber (ALPHA CABIN) according to ISO 354 (Reverberation room method sound absorption ratio measurement method) for the package tray manufactured in Comparative Example 1 and Example 1, and the result is shown in FIG.
도 5의 결과, 동일한 중량의 패키키 트레이의 경우임에도 본 발명에 따른 실시예 1의 경우 첨연섬유를 포함하는 비교예 1과 대비하여 흡음 성능이 더욱 우수하였다. 구체적으로, 실시예 1의 패키지 트레이가 비교예 1과 대비하여 약 20% 정도의 흡음률이 개선되었다.As a result of FIG. 5, even in the case of a package key tray of the same weight, in Example 1 according to the present invention, the sound absorption performance was further improved as compared with Comparative Example 1 including the friable fiber. Specifically, the sound absorption ratio of the package tray of Example 1 was improved by about 20% as compared with Comparative Example 1.
실험예Experimental Example 2-2: 흡음 테스트 2 2-2: Sound absorption test 2
실시예 1과 실시예 3에서 제조한 패키지 트레이에 대하여 ISO 354에 따라 소형 잔향실을 이용하여 흡음 성능을 측정하여, 그 결과를 도 6에 나타내었다.Sound absorption performance was measured using a small reverberation chamber according to ISO 354 for the package trays manufactured in Examples 1 and 3, and the results are shown in FIG.
도 6의 결과, 흡음패드를 리프팅하여 루프(ROOF) 구조를 형성하여 공기층(Air gap)을 형성한 경우 흡음 성능을 개선할 수 있는 웨지(Wedge)가 형성됨에 따라 N.V.H가 개선됨을 확인할 수 있다. 따라서, 본 발명에 따른 보드층의 형성과 더불어 에어캡을 통해 공기층을 포함하도록 흡음패드층를 형성하는 경우 흡음 성능을 극대화 시킬 수 있다.As a result of FIG. 6, it can be seen that N.V.H is improved by forming a wedge capable of improving sound absorption performance when an air gap is formed by lifting a sound absorbing pad to form a loop (ROOF) structure. Therefore, when the sound absorbing pad layer is formed to include the air layer through the air cap in addition to the formation of the board layer according to the present invention, the sound absorbing performance can be maximized.
실시예Example 4: 4: 흡음패드Sound absorbing pad 함량에 따른 패키지 트레이 Package tray according to content
실시예 1과 동일한 방법으로 제조하되, 흡음패드의 함량을 115 g/m2(실시예 4-1), 130 g/m2(실시예 4-2), 150 g/m2(실시예 4-3), 200 g/m2(실시예 4-4)로 하여 보드층의 PET 필름면에 부착하여 패키지 트레이를 제조하였다.Carried out, but that of Example 1, prepared in the same way, the content of the sound-absorbing
실시예Example 5 5
실시예 3과 동일한 방법으로 제조하되, 흡음패드의 함량을 115 g/m2로 하여 PET 필름면에 공기층을 형성한 패키기 트레이를 제조하였다.A package tray was prepared in the same manner as in Example 3 except that an air layer was formed on the PET film surface at a moisture absorption pad content of 115 g / m 2 .
실험예Experimental Example 2-3: 흡음 테스트 3 2-3: Sound absorption test 3
실시예 4-1 내지 4-4와 비교예 1에서 제조한 패키지 트레이에 대하여 ISO 354에 따라 소형 잔향실을 이용하여 흡음 성능을 측정하여, 그 결과를 도 7에 나타내었다. Sound absorption performances of the package trays prepared in Examples 4-1 to 4-4 and Comparative Example 1 were measured using a small reverberation chamber according to ISO 354, and the results are shown in Fig.
도 7의 결과를 보면, 흡음패드를 115g/m2를 사용한 실시예 4-1의 경우 흡음패드를 230g/m2을 사용한 비교예 1과 대비하여 동등 유사한 정도의 흡음 성능을 나타내는 것으로 보아, 본 발명에 따른 패키지 트레이가 흡음 성능이 우수함을 알 수 있다. The results of Fig. 7, the sound-absorbing pad when viewed as indicating the sound absorption performance of similar equivalent degree in comparison with Comparative Example 1, a sound-absorbing pad with 230g / m 2 in the case of Example 4-1 with a 115g / m 2, the It can be seen that the package tray according to the invention has excellent sound absorption performance.
실험예Experimental Example 2-4: 흡음 테스트 4 2-4: Sound absorption test 4
실시예 4-1, 실시예 4-2, 실시예 5, 및 비교예 1에서 제조한 패키지 트레이에 대하여 ISO 354에 따라 소형 잔향실을 이용하여 흡음 성능을 측정하여, 그 결과를 도 8에 나타내었다. The sound absorption performances of the package trays prepared in Examples 4-1, 4-2, and 5 and Comparative Example 1 were measured using a small reverberation chamber according to ISO 354, and the results are shown in FIG. 8 .
도 8의 결과를 보면, 흡음패드를 130g/m2를 사용한 실시예 4-2와 흡음패드를 115g/m2를 사용하되 공기층을 형성한 실시예 5의 경우가 동등 유사한 정도의 흡음 성능을 나타내는 것으로 보아, 공기층을 형성한 본 발명에 따른 패키지 트레이가 흡음 성능이 더욱 우수함을 재차 확인할 수 있다. The results of Figure 8, in the case of the embodiment, but the sound-absorbing pad with 130g / m 2 Example 4-2 and the sound-absorbing pad using 115g / m 2 to form a layer of air carried example 5 indicating the sound absorption performance of similar extent equal As a result, it can be confirmed again that the package tray according to the present invention having the air layer is more excellent in sound absorption performance.
따라서, 본 발명에 따른 패키지 트레이는 재질면에서는 유리섬유 강화 폴리프로필렌(GFPP) 펠트와 PET 부직포를 적층시켜 니들펀칭하여 일체화한 보드를 사용하고, 구조면에서는 PET 부직포 면과 극세사 흡음패트에 공기층이 형성될 수 있도록 에어캡을 형성함에 따라 흡음 성능의 효율적으로 향상시키며, 상대적으로 종래의 패키지 트레이와 대비하여 400 ~ 450g/㎡ 중량을 절감할 수 있어 경량화도 구현할 수 있다.Accordingly, the package tray according to the present invention uses a board formed by laminating glass fiber reinforced polypropylene (GFPP) felt and PET nonwoven fabric by needle punching on the material surface, and in the structure, an air layer is formed on the PET non- The air suction capacity can be efficiently improved by forming the air cap so that the weight can be reduced by 400 to 450 g / m 2 compared with the conventional package tray.
참고예Reference example 1: 흡음 패드의 유무에 따른 흡음 성능 확인 1: Confirmation of sound absorption performance according to presence or absence of sound absorption pad
비교예 1과 실시예 1과 같이 흡음패드가 존재하는 경우와 그렇지 않은 참고비교예 1(비교예 1에 대하여 흠음패드를 사용하지 않은 경우), 참고실시예 1(실시예 1에 대하여 흡음패드를 사용하지 않은 경우)에 대하여 ISO 354에 따라 소형 잔향실을 이용하여 흡음 성능을 측정하여, 그 결과를 도 9에 나타내었다. Comparative Example 1 (in the case where a scratch pad was not used for Comparative Example 1), Reference Example 1 (in the case where a sound absorbing pad was used in Comparative Example 1 and Comparative Example 1, The sound absorption performance was measured using a small reverberation chamber according to ISO 354, and the results are shown in FIG.
도 9의 결과를 보면, 비교예 1과 대비하여 실시예 1의 경우 20% 이상의 흡음성능이 향상됨을 알 수 있었다.9, it was found that the sound absorption performance was improved by 20% or more in the case of Example 1, as compared with Comparative Example 1.
Claims (12)
상기 스킨층 일면에 형성된 접착필름층;
상기 접착필름층 일면에 형성된 유리섬유 강화 폴리프로필렌(GFPP) 펠트와 PET 부직포를 적층시켜 니들펀칭하여 일체화한 보드층; 및
상기 보드층 일면에 공기층을 형성하도록 부착된 흡음패드층;
을 포함하는 것을 특징으로 하는 흡음 성능이 개선되고 경량화된 패키지 트레이.
Skin layer;
An adhesive film layer formed on one surface of the skin layer;
A board layer formed by laminating a glass fiber reinforced polypropylene (GFPP) felt formed on one surface of the adhesive film layer and a PET nonwoven fabric and kneading the same by needle punching; And
A sound absorbing pad layer attached to one side of the board layer to form an air layer;
Wherein the package tray has an improved sound absorption performance and a reduced weight.
The package tray according to claim 1, wherein the adhesive film layer is a polypropylene film or a hot-melt film.
[2] The package tray of claim 1, wherein the board layer is a board in which a glass fiber-reinforced polypropylene (GFPP) felt is laminated on a lower surface of a PET nonwoven fabric and knitted and punched to form an integrated board.
The package tray according to claim 1, wherein the air layer is formed by forming a lift foam on one surface of the PET nonwoven fabric of the board layer and forming a sound absorbing pad in a loop shape.
The package tray of claim 1, wherein the board layer is 900 to 1300 g / m 2 .
The method of claim 1, wherein the sound absorbing pad layer Wherein the package tray is made of polypropylene (PP), polyethylene terephthalate (PET), or a mixture thereof.
(b) 상기 보드층의 유리섬유 강화 폴리프로필렌(GFPP) 펠트면에 접착필름과 스킨원단을 적층하고 압력을 가하지 않고 냉간 성형하는 단계; 및
(c) 상기 보드층 일면에 공기층을 포함하도록 흡음패드층을 형성하는 단계;
를 포함하는 것을 특징으로 하는 흡음 성능이 개선되고 경량화된 패키지 트레이의 제조방법.
(a) a step of layering a glass fiber-reinforced polypropylene (GFPP) felt and a PET nonwoven fabric and needle-punching the same to prepare an integrated board layer and preheating and pressing;
(b) laminating an adhesive film and a skin fabric on a felt surface of a glass fiber-reinforced polypropylene (GFPP) of the board layer and performing cold forming without applying pressure; And
(c) forming a sound absorbing pad layer including an air layer on one surface of the board layer;
The method of manufacturing a package tray according to claim 1,
[8] The method of claim 7, wherein the board layer in step (a) is formed by laminating two or more layers of glass fiber reinforced polypropylene (GFPP) felt and integrating the same with a PET nonwoven fabric by needle punching. Of the package tray.
The method according to claim 8, wherein the glass fiber reinforced polypropylene (GFPP) felt is laminated on the lower surface of the PET nonwoven fabric on the lower surface thereof and is needle-punched to be integrated.
[8] The method of claim 7, wherein the minimum thickness is formed to be less than 2t through the preheating compression of step (a).
[7] The method of claim 7, wherein the thickness is lofted by 3 to 4t through cold forming in the step (b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160160497A KR102453898B1 (en) | 2016-11-29 | 2016-11-29 | package tray of a car having improved sound absorption and light weight and method for manufacturing thereof |
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| KR1020160160497A KR102453898B1 (en) | 2016-11-29 | 2016-11-29 | package tray of a car having improved sound absorption and light weight and method for manufacturing thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109159742A (en) * | 2018-08-24 | 2019-01-08 | 无锡吉兴汽车部件有限公司 | A kind of vehicle back-shelf board production method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100289318B1 (en) * | 1996-10-29 | 2001-05-02 | 리이터 오토모티브 (인터내셔날) 아게 | Ultralight, multifunctional sound-insulating kit |
| KR20070071351A (en) | 2005-12-30 | 2007-07-04 | 에스케이케미칼주식회사 | Headlining material for automobile using thermosetting polymer |
| WO2013005744A1 (en) * | 2011-07-05 | 2013-01-10 | 豊和繊維工業株式会社 | Package tray for vehicle |
| KR101279522B1 (en) * | 2013-01-02 | 2013-07-05 | 가온전선 주식회사 | Natural fiber reinforced composite board for vehicle headliner of multi-layers structure using thermoplastic matrix fibers of high crystalline and bonding to improve heat resistance and strength, and method for preparing the board |
| KR20150122568A (en) * | 2014-04-23 | 2015-11-02 | 현대자동차주식회사 | Dash pad for vehicle |
-
2016
- 2016-11-29 KR KR1020160160497A patent/KR102453898B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100289318B1 (en) * | 1996-10-29 | 2001-05-02 | 리이터 오토모티브 (인터내셔날) 아게 | Ultralight, multifunctional sound-insulating kit |
| KR20070071351A (en) | 2005-12-30 | 2007-07-04 | 에스케이케미칼주식회사 | Headlining material for automobile using thermosetting polymer |
| WO2013005744A1 (en) * | 2011-07-05 | 2013-01-10 | 豊和繊維工業株式会社 | Package tray for vehicle |
| KR101279522B1 (en) * | 2013-01-02 | 2013-07-05 | 가온전선 주식회사 | Natural fiber reinforced composite board for vehicle headliner of multi-layers structure using thermoplastic matrix fibers of high crystalline and bonding to improve heat resistance and strength, and method for preparing the board |
| KR20150122568A (en) * | 2014-04-23 | 2015-11-02 | 현대자동차주식회사 | Dash pad for vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109159742A (en) * | 2018-08-24 | 2019-01-08 | 无锡吉兴汽车部件有限公司 | A kind of vehicle back-shelf board production method |
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| KR102453898B1 (en) | 2022-10-11 |
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