KR20210062106A - Headliner duct material for vehicle - Google Patents

Headliner duct material for vehicle Download PDF

Info

Publication number
KR20210062106A
KR20210062106A KR1020190148204A KR20190148204A KR20210062106A KR 20210062106 A KR20210062106 A KR 20210062106A KR 1020190148204 A KR1020190148204 A KR 1020190148204A KR 20190148204 A KR20190148204 A KR 20190148204A KR 20210062106 A KR20210062106 A KR 20210062106A
Authority
KR
South Korea
Prior art keywords
headliner
duct
layer
base material
vehicle
Prior art date
Application number
KR1020190148204A
Other languages
Korean (ko)
Inventor
권충호
김상민
Original Assignee
(주)대한솔루션
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)대한솔루션 filed Critical (주)대한솔루션
Priority to KR1020190148204A priority Critical patent/KR20210062106A/en
Publication of KR20210062106A publication Critical patent/KR20210062106A/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557Details of ducts or cables
    • B60H1/00564Details of ducts or cables of air ducts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/02Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/066Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/067Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of fibres or filaments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/02Layered 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
    • B32B5/022Non-woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/22Layered 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
    • B32B5/24Layered 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
    • B32B5/245Layered 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 being a foam layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/22Layered 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
    • B32B5/24Layered 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
    • B32B5/26Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/24Devices purely for ventilating or where the heating or cooling is irrelevant
    • B60H1/241Devices purely for ventilating or where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle
    • B60H1/245Devices purely for ventilating or where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle located in the roof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/24Devices purely for ventilating or where the heating or cooling is irrelevant
    • B60H1/241Devices purely for ventilating or where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle
    • B60H1/246Devices purely for ventilating or where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle located in the interior of the vehicle or in or below the floor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/14Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/101Glass fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00Composition of foam
    • B32B2266/02Organic
    • B32B2266/0214Materials belonging to B32B27/00
    • B32B2266/0264Polyester
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51Elastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546Flexural strength; Flexion stiffness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/718Weight, e.g. weight per square meter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/72Density
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/732Dimensional properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00Vehicles
    • B32B2605/08Cars
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88Optimized components or subsystems, e.g. lighting, actively controlled glasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

Provided is a headliner duct material for a vehicle, which is able to pile up a polyester foaming layer, glass fiber layer, and felt layer in order, attach them by a thermoplastic adhesive film, prevent substances hazardous to the human body such as phenol and aldehyde from being generated, be environmentally friendly, and form a safe, pleasant work environment. In addition, the present invention is able to use the polyester foaming layer, have an excellent dimensional stability and superior durability, be light-weighted compared with polyurethane, and improve fuel efficiency of the vehicle. In addition, the present invention is able to apply heat to the thermoplastic adhesive film, attach the configuration layers to be unified and made in a desired shape easily and conveniently, and further increase work efficiency and formability.

Description

자동차용 헤드라이너 덕트 기재{HEADLINER DUCT MATERIAL FOR VEHICLE}Automotive headliner duct equipment {HEADLINER DUCT MATERIAL FOR VEHICLE}

본 발명은 자동차용 헤드라이너 덕트 기재에 관한 것으로, 더욱 상세하게는 The present invention relates to a headliner duct substrate for an automobile, and in more detail

폴리에스테르와 유리섬유 그리고 부직포를 이용하여 덕트 기재를 제조함으로써, 인체에 무해하면서도 환경친화적일 뿐만 아니라 치수 안정성이 우수하고, 또한 내구성이 뛰어나면서도 가벼워서 차량의 연비 개선에 유리한 자동차용 헤드라이너 덕트 기제에 관한 것이다.By manufacturing the duct base material using polyester, glass fiber, and non-woven fabric, it is harmless to the human body, is environmentally friendly, has excellent dimensional stability, and is excellent in durability and light, so it is suitable for automobile headliner duct base material that is advantageous for improving fuel efficiency of vehicles. About.

대시 보드 안에 장착하여 자동차 실내에 냉·온기를 공급하는 공조장치(때에 따라 자동차 후부에 설치할 수도 있다)는, 일반적으로 앞좌석을 중심으로 냉·온기를 공급할 수 있게 구성하나, 차종에 따라 뒷좌석에서도 냉·온기를 공급할 수 있게 구성한다. 이처럼 뒷좌석에 냉온기를 공급하기 위한 한 가지 방법으로 헤드라이너에 덕트를 장착하고, 이 덕트를 통해 뒷좌석에도 충분한 냉·온기를 공급할 수 있게 제작한다. 아래의 (특허문헌 1) 내지 (특허문헌 3)에는, 이러한 헤드라이너 덕트에 관한 기술이 개시되어 있다.An air conditioner installed in the dashboard to supply cool and hot air to the interior of the car (may be installed at the rear of the car in some cases) is generally configured to supply cool and hot air centering on the front seats, but depending on the vehicle model, it can also be installed in the rear seats It is configured to supply cold and hot air. As one way to supply cold and hot air to the rear seats, a duct is mounted on the headliner, and through this duct, it is manufactured to supply sufficient cold and hot air to the rear seats as well. In the following (Patent Document 1) to (Patent Document 3), techniques relating to such a headliner duct are disclosed.

(특허문헌 1) 한국등록특허 제10-0521879호(Patent Document 1) Korean Patent Registration No. 10-0521879

SUV차량이나 7인승 이상의 차량에 적용되는 에어 덕트 구조에 관한 것이다. 그 구성은, 리어측 승객을 위한 리어 덕트의 기능을 수행하도록 ㄷ자형의 루프레일을 루프패널에 용접으로 고정함으로써, 루프의 강성을 더 보강함은 물론, 에어 덕트의 삭제를 통해 루프의 공간을 최대한 확보하면서 커튼에어백과 FMH용 리브 등의 장착에 따른 실내 헤드 룸의 하강 및 그 하강에 따른 승객의 탑승 불편함을 개선할 수 있도록 하는 루프 멤버를 이용한 에어 덕트 구조를 제공한다.It relates to an air duct structure applied to an SUV vehicle or a vehicle with 7 passengers or more. Its configuration is to further reinforce the rigidity of the roof by fixing the C-shaped roof rail to the roof panel by welding to perform the function of the rear duct for the rear passenger, as well as reducing the space of the roof through the elimination of the air duct. It provides an air duct structure using a roof member to ensure maximum security while improving the lowering of the indoor headroom due to the installation of curtain airbags and ribs for FMH, and improving passenger discomfort due to the lowering.

(특허문헌 2) 한국등록특허 제10-0836349호(Patent Document 2) Korean Patent Registration No. 10-0836349

에어 벤틸레이터 덕트 구조에 관한 것으로, 특히 후방에 설치된 에어컨디셔너에 연결된 에어 벤틸레이터 덕트를 헤드라이닝에 설치하고, 상기 덕트가 전방으로 뻗는 레프트윙과 라이트윙을 구비하도록 하며, 상기 레프트윙과 라이트윙의 전단부와 후단부가 서로 연통하도록 한 에어 벤틸레이터 덕트 구조에 관한 것이다. 이러한 에어 벤틸레이터 덕트 구조는, 후방 에어컨디셔너에 연결되며 헤드라이닝에 설치된 에어 벤틸레이터 덕트에서, 상기 덕트는 후방 에어컨디셔너와 연결되며, 후방으로부터 전방으로 뻗는 레프트윙과 라이트윙을 구비하고, 상기 레프트윙과 라이트윙의 전단부와 후단부에는 각각 2열 에어 벤트와 3열 에어 벤트가 설치되며, 상기 레프트윙과 라이트윙의 후단부는 서로 연통하고, 상기 레프트윙과 라이트윙의 전단부는 관통덕트에 의해 서로 연통하여 있는 것을 특징으로 한다.It relates to an air ventilator duct structure, and in particular, an air ventilator duct connected to an air conditioner installed at the rear is installed on the headlining, and the duct has a left wing and a right wing extending forward, and the front and rear ends of the left wing and the right wing It relates to an air ventilator duct structure in which the parts communicate with each other. This air ventilator duct structure is connected to the rear air conditioner and in the air ventilator duct installed on the headlining, the duct is connected to the rear air conditioner, has a left wing and a right wing extending from the rear to the front, and the front end of the left wing and the right wing. A second row air vent and a third row air vent are installed at the part and the rear end, respectively, the rear ends of the left wing and the right wing communicate with each other, and the front ends of the left wing and the right wing communicate with each other by a through duct.

(특허문헌 3) 한국공개특허 제10-2019-0117940호(Patent Document 3) Korean Patent Publication No. 10-2019-0117940

루프 덕트와 FMH 리브를 일체형으로 제작하므로, FMH 리브가 일체로 이루어진 루프 덕트를 헤드라이너에 장착하는 한 과정을 통해 루프 덕트와 FMH 리브를 동시에 장착하여 헤드라이너 조립 시간을 줄여 생산성을 높이면서도 제조비용도 줄일 수 있게 한다. 특히, 이처럼 FMH 리브를 루프 덕트와 함께 일체로 성형하므로, 루프 덕트와 FMH 리브를 각각 제작하지 않아도 되어 헤드라이너 전체 조립 공정수를 줄이면서도 제조 비용을 줄일 수 있게 한다. 그리고 FMH 리브와 루프 덕트를 사출 성형 방식으로 성형하여 일체로 제작하므로, FMH 리브나 루프 덕트의 형상과 모양이 복잡하더라도 쉽게 제작하여 헤드라이너에 쉽고 신속하게 조립할 수 있게 한다.Since the roof duct and FMH rib are integrally manufactured, the roof duct and FMH rib are mounted at the same time through a single process of attaching the roof duct with the FMH rib to the headliner, reducing the assembly time of the headliner, increasing productivity while increasing manufacturing cost. Make it possible to reduce it. In particular, since the FMH rib is integrally formed with the roof duct, it is not necessary to manufacture the roof duct and the FMH rib, respectively, thereby reducing the number of overall headliner assembly steps while reducing manufacturing cost. In addition, since FMH ribs and roof ducts are molded by injection molding and are integrally manufactured, even if the shape and shape of FMH ribs or roof ducts are complicated, they can be easily manufactured and assembled to the headliner quickly and easily.

한편, 이러한 기존 헤드라이너 덕트는 폴리우레탄 경질 발포체, 폴리프로필렌 수지, 골판지 등을 주로 사용한다. 이때 이들을 부착할 때는 페놀수지계 접착제를 이용함에 따라 다음과 같은 문제가 발생한다.On the other hand, these existing headliner ducts mainly use polyurethane rigid foam, polypropylene resin, corrugated cardboard, and the like. At this time, when attaching them, the following problems arise as a phenolic resin-based adhesive is used.

(1) 페놀수지는 페놀류와 알데하이드류의 축합반응으로 생성한 열경화성 수지의 일종으로, 페놀수지는 소각할 때 미반응이나 불완전 연소로 페놀과 알데하이드가 방출한다. 이러한 페놀과 알데하이드는 작업환경을 포함한 생활환경의 공해물질로 작용하고, 또한 유독성 가스를 배출한다.(1) Phenol resin is a kind of thermosetting resin produced by the condensation reaction of phenols and aldehydes. When phenolic resin is incinerated, phenol and aldehyde are released due to unreacted or incomplete combustion. These phenols and aldehydes act as pollutants in the living environment, including the working environment, and also emit toxic gases.

(2) 이에, 작업장 내에서 페놀수지에 오랫동안 노출되면 작업자의 건강을 해칠 우려가 있다.(2) Therefore, there is a risk of harming the health of workers if they are exposed to phenolic resin for a long time in the workplace.

(3) 또한, 기존의 헤드라이너 덕트에 사용하는 기재는 중량이 무거워서 자동차 연비를 떨어뜨리는 한 가지 요인으로 작용한다.(3) In addition, the base material used for the existing headliner duct is heavy and acts as a factor that lowers the fuel economy of the vehicle.

한국등록특허 제10-0521879호 (등록일: 2005.10.07)Korean Patent Registration No. 10-0521879 (Registration Date: 2005.10.07) 한국등록특허 제10-0836349호 (등록일: 2008.06.02)Korean Patent Registration No. 10-0836349 (Registration Date: 2008.06.02) 한국공개특허 제10-2019-0117940호 (공개일: 2019.10.17)Korean Patent Publication No. 10-2019-0117940 (Publication date: 2019.10.17)

본 발명은 이러한 점을 고려한 것으로, 폴리에스테르 발포층, 유리섬유층, 그리고 부직포층을 차례로 적층하고, 핫멜트와 같은 열가소성 접착 필름을 이용하여 일체로 부착함으로써, 페놀과 알데하이드와 같이 인체에 해로운 물질이 생기지 않으면서도 환경친화적일 뿐만 아니라 안전하고 쾌적한 작업 환경을 조성할 수 있게 한 자동차용 헤드라이너 덕트 기재를 제공하는 데 그 목적이 있다.The present invention takes these points into consideration, and by sequentially laminating a polyester foam layer, a glass fiber layer, and a nonwoven fabric layer, and attaching them integrally using a thermoplastic adhesive film such as a hot melt, substances harmful to the human body such as phenol and aldehyde are not generated. It is an object of the present invention to provide a headliner duct base material for automobiles that is not only environmentally friendly, but also enables a safe and comfortable working environment to be created.

또한, 본 발명은 폴리에스테르 발포층을 이용함으로써, 치수 안정성이 우수할 뿐만 아니라 내구성이 뛰어나고, 폴리우레탄과 비교하여 경량화할 수 있어 자동차의 연비를 개선할 수 있게 한 자동차용 헤드라이너 덕트 기재를 제공하는 데 다른 목적이 있다.In addition, the present invention provides a headliner duct base material for automobiles capable of improving fuel economy of automobiles by using a polyester foam layer, which not only has excellent dimensional stability, but also has excellent durability, and can reduce weight compared to polyurethane. It has a different purpose.

그리고 본 발명은 열가소성 접착 필름에 열을 가해 이러한 구성 층을 하나로 부착하게 함으로, 열 성형 방식으로 쉽고 편리하게 원하는 형태로 제작할 수 있어 작업 효율과 성형성을 더욱 높일 수 있게 한 자동차용 헤드라이너 덕트 기재를 제공하는 데 또 다른 목적이 있다.In addition, the present invention applies heat to a thermoplastic adhesive film to attach these constituent layers into one, so that it can be easily and conveniently manufactured in a desired shape by a thermoforming method, thereby further enhancing work efficiency and moldability. There is another purpose to provide.

이러한 목적을 달성하기 위한 본 발명에 따른 자동차용 헤드라이너 덕트 기재는, 폴리에스테르 발포층(10); 열가소성 접착 필름(20); 유리섬유층(30); 및 부직포층(40);을 차례로 적층하여 이루어진 것을 특징으로 한다.A headliner duct substrate for a vehicle according to the present invention for achieving this object includes a polyester foam layer 10; A thermoplastic adhesive film 20; A glass fiber layer 30; And a nonwoven fabric layer 40; it is characterized in that it is formed by sequentially stacking.

특히, 상기 폴리에스테르 발포층(10)은, 밀도가 300~400㎏/㎤, 두께가 2.0~3.0㎜인 것을 특징으로 한다.In particular, the polyester foam layer 10 has a density of 300 to 400 kg/cm 3 and a thickness of 2.0 to 3.0 mm.

또한, 상기 헤드라이너 덕트 기재는, ASTM D790에 따른 굴곡 탄성률(Stiffness)이 1.5~3.5㎫이고, 굴곡 강도가 0.2N/㎠ 이상인 것을 특징으로 한다.In addition, the headliner duct substrate is characterized in that the flexural modulus (Stiffness) according to ASTM D790 is 1.5 to 3.5 MPa, and the flexural strength is 0.2N/cm2 or more.

마지막으로, 상기 헤드라이너 덕트 기재는, 단위 면적당 중량이 800~900g/㎡인 것을 특징으로 한다.Finally, the headliner duct base material is characterized in that the weight per unit area is 800 to 900 g/m 2.

본 발명에 따른 자동차용 헤드라이너 덕트 기재는 다음과 같은 효과가 있다.The headliner duct substrate for a vehicle according to the present invention has the following effects.

(1) 핫멜트와 같은 열가소성 수지를 이용하여 구성 층을 일체로 구성함으로, 접착제로 사용하는 수지에서 인체에 해로운 물질이 생기는 것을 방지할 수 있다.(1) By integrally forming the constituent layers using a thermoplastic resin such as hot melt, it is possible to prevent the generation of substances harmful to the human body from the resin used as an adhesive.

(2) 이에, 본 발명에 따른 헤드라이너 덕트 기재를 제조할 때나 사용한 뒤에 폐기할 때도 인체에 해로운 물질이 생기지 않아 안전하게 작업할 수 있을 뿐만 아니라 공해 물질이 없어 친환경적이면서도 쾌적한 작업 환경과 주변 환경을 조성할 수 있다.(2) Accordingly, when the headliner duct base material according to the present invention is manufactured or disposed of after use, it is possible to work safely because no substances harmful to the human body are generated, as well as creating an eco-friendly and pleasant working environment and surrounding environment due to no pollutants. can do.

(3) 폴리에스테르 발포층을 기재로 헤드라이너 덕트 기재를 제작함으로, 치수 안정성이 우수하여 원하는 형태로 설계한 대로 그대로 제작할 수 있다. 이에, 생산 과정에서 생산 불량을 줄일 수 있을 뿐만 아니라 조립할 때도 정해진 위치에 정확하게 조립할 수 있어 생산성을 높일 수 있다.(3) By making the headliner duct base material using the polyester foam layer as a base material, it has excellent dimensional stability and can be manufactured as it is designed in a desired shape. Accordingly, not only can production defects be reduced during the production process, but also when assembling can be accurately assembled at a predetermined position, productivity can be increased.

(4) 또한, 폴리에스테르 발포층은 내구성이 우수할 뿐만 아니라 경량화할 수 있어 오랫동안 냉·온기에 노출하더라도 파손되지 않아 장시간 사용할 수 있고, 그리고 가벼워서 자동차의 연비 개선에도 도움을 준다.(4) In addition, the polyester foam layer is not only excellent in durability, but also can be lightweight, so it is not damaged even when exposed to cold or hot air for a long time, so it can be used for a long time, and because it is light, it helps to improve fuel efficiency of automobiles.

[도 1]은 본 발명에 따른 자동차용 헤드라이너 덕트 기재를 장착한 헤드라이너를 보여주는 자동차의 평면도이다.
[도 2]는 본 발명에 따른 자동차용 헤드라이너 덕트 기재를 장착한 헤드라이너의 평면도이다.
[도 3]은 본 발명에 따른 자동차용 헤드라이너 덕트 기재의 층 구조를 보여주는 단면도이다.
1 is a plan view of an automobile showing a headliner equipped with a headliner duct base material for a vehicle according to the present invention.
[Fig. 2] is a plan view of a headliner equipped with a headliner duct base material for a vehicle according to the present invention.
[Fig. 3] is a cross-sectional view showing a layer structure of a substrate for a headliner duct for a vehicle according to the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 더욱 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 안 되며, 발명자는 그 자신의 발명을 최고의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 따라 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventor should appropriately define the concept of terms in order to describe his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention according to the principle that it can be.

따라서 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 한가지 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원 시점에서 이들을 대체할 수 있는 다양한 균등물과 변형례가 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, and thus various equivalents that can replace them at the time of the present application. And it should be understood that there may be variations.

(구성)(Configuration)

본 발명에 따른 자동차용 헤드라이너 덕트 기재는, [도 1] 내지 [도 3]과 같이, 폴리에스테르 발포층(10), 열가소성 접착 필름(20), 유리섬유층(30), 그리고 부직포층(40)을 포함한다.The headliner duct substrate for a vehicle according to the present invention, as shown in [Fig. 1] to [Fig. 3], a polyester foam layer 10, a thermoplastic adhesive film 20, a glass fiber layer 30, and a nonwoven fabric layer 40 ).

특히, 상기 열가소성 접착 필름(20)에 열을 가하면서 접착제로 사용할 수 있게 구성함으로써, 페놀수지와 같이 유해한 물질이나 가스가 발생하지 않아 쾌적한 작업 환경에서 조립 작업을 할 수 있을 뿐만 아니라 친환경적인 헤드라이너 덕트 기재를 제조할 수 있게 한 것이다.In particular, by configuring the thermoplastic adhesive film 20 to be used as an adhesive while applying heat, it is possible to assemble in a comfortable working environment as no harmful substances or gases such as phenolic resin are generated, as well as an eco-friendly headliner. It made it possible to manufacture a duct base material.

또한, 상기 폴리에스테르 발포층(10)을 사용함으로, 치수 안정성이 우수하여 설계 치수대로 안정적으로 제작할 수 있을 뿐만 아니라 가벼워서 자동차의 연비를 개선할 수 있게 한 것이다.In addition, by using the polyester foam layer 10, it is excellent in dimensional stability and can be stably manufactured according to the design dimensions, and is light, so that fuel efficiency of a vehicle can be improved.

이하, 이러한 구성에 관해 첨부도면을 참조하여 더욱 상세하게 설명하면 다음과 같다. 여기서, 도면부호 "H"는 헤드라이너를, "D"는 헤드라이너 덕트를 각각 나타낸다.Hereinafter, this configuration will be described in more detail with reference to the accompanying drawings. Here, reference numeral "H" denotes a headliner, and "D" denotes a headliner duct.

가. 폴리에스테르 end. Polyester 발포층Foam layer

폴리에스테르 발포층(10)은, [도 3]과 같이, 헤드라이너(H)에 장착하는 덕트(D) 제작에 사용하는 기재의 표층을 구성하는 층이다. 여기서, 폴리에스테르는 당겼을 때 강도가 나일론 다음으로 높고, 내구성이 좋을 뿐만 아니라, 기존 덕트 기재에 사용하던 폴리우레탄 폼과 비교하여 가벼우므로 자동차의 연비 개선에 도움을 준다.As shown in Fig. 3, the polyester foam layer 10 is a layer constituting the surface layer of the base material used for manufacturing the duct D attached to the headliner H. Here, polyester is second only to nylon in strength when pulled, has good durability, and is lighter compared to polyurethane foam used for existing duct substrates, thus helping to improve fuel efficiency of automobiles.

또한, 상기 폴리에스테르는 치수 안정성이 우수하여 덕트 기재를 제작할 때 원하는 치수대로 정확하게 성형할 수 있다. 이에, 성형 불량을 줄일 수 있을 뿐만 아니라 조립할 때도 정확한 치수대로 제작할 수 있어 조립 효율을 높일 수 있다.In addition, the polyester has excellent dimensional stability and can be accurately molded to desired dimensions when manufacturing a duct base material. Accordingly, not only can molding defects be reduced, but also when assembling can be manufactured to the correct dimensions, it is possible to increase assembly efficiency.

그리고 폴리에스테르는 내구성이 우수하여 오랫동안 사용하더라도 쉽게 파손되거나 찢어지지 않고, 습기를 잘 흡수하지 않아 형상이 쉽게 변형하지 않아 덕트 기재의 형상 유지에도 유리하다.In addition, polyester has excellent durability and is not easily damaged or torn even when used for a long period of time, and does not absorb moisture well, so its shape is not easily deformed, which is advantageous in maintaining the shape of the duct base material.

이러한 폴리에스테르 발포층(10)은, 밀도가 300~400㎏/㎤, 두께가 2.0~3.0㎜인 것을 사용하는 것이 바람직하다. 가장 바람직하게는, 밀도가 350㎏/㎤이고 두께가 2.5㎜인 것을 사용하는 것이 가장 좋다.It is preferable to use the polyester foam layer 10 having a density of 300 to 400 kg/cm 3 and a thickness of 2.0 to 3.0 mm. Most preferably, it is best to use one having a density of 350 kg/cm 3 and a thickness of 2.5 mm.

나. 열가소성 접착 필름I. Thermoplastic adhesive film

열가소성 접착 필름(20)은, [도 3]과 같이, 상술한 폴리에스테르 발포층(10)과 유리섬유층(30) 그리고 부직포층(40)을 하나로 부착하기 위한 일종의 부착제로 사용한다.The thermoplastic adhesive film 20 is used as a kind of adhesive for attaching the above-described polyester foam layer 10, glass fiber layer 30, and nonwoven fabric layer 40 into one, as shown in FIG. 3.

특히, 상기 열가소성 접착 필름(20)은, 핫멜트와 같이 소정의 열을 가하면 쉽게 녹아서 이웃한 두 개의 층을 쉽게 부착하게 하고, 이때 유리섬유층(30)에 흡수가 되면서 부직포층(40)을 일체로 부착할 수 있게 제작하는 것이 바람직하다.In particular, the thermoplastic adhesive film 20 melts easily when a predetermined heat is applied, such as a hot melt, so that two adjacent layers are easily attached. At this time, the non-woven fabric layer 40 is integrally absorbed by the glass fiber layer 30. It is desirable to make it attachable.

여기서 본 발명에 따른 헤드라이너 덕트 기재는 이처럼 열가소성 접착 필름(20)을 사용함에 따라 열성형 금형을 이용하여 소정의 열을 가하면서 가압하여 일체로 성형하는 것이 바람직하다. 이때, 압력과 온도는 열가소성 접착 필름(20)을 녹여서 이웃한 층들을 일체로 부착하게 할 수 있는 압력으로 열 성형이 이루어짐을 본 발명이 속한 기술분야의 종사자라면 누구든지 쉽게 알 수 있을 것이다.Here, it is preferable that the headliner duct substrate according to the present invention is integrally molded by pressing while applying a predetermined heat using a thermoforming mold using the thermoplastic adhesive film 20 as described above. At this time, any person skilled in the art will know that the pressure and temperature are thermoforming at a pressure capable of melting the thermoplastic adhesive film 20 to integrally attach neighboring layers to each other.

다. All. 유리섬유층Fiberglass layer

유리섬유층(30)은, [도 3]과 같이, 상술한 열가소성 접착 필름(20)과 마주하게 일체로 적층한다. 여기서, 유리섬유층은 고온에 잘 견뎌 불에 타지 않고, 흡수성이 없고 흡습성이 적다. 특히, 흡음 효과가 우수할 뿐만 아니라 보냉과 보온 효과를 얻을 수 있는 것으로 잘 알려졌다.The glass fiber layer 30 is integrally laminated to face the above-described thermoplastic adhesive film 20 as shown in FIG. 3. Here, the glass fiber layer is resistant to high temperatures, does not burn, has no water absorption, and has little hygroscopicity. In particular, it is well known that it is not only excellent in sound-absorbing effect, but also can obtain cold insulation and thermal insulation effects.

라.부직포층D. Non-woven layer

부직포층(40)은, [도 3]과 같이, 상술한 유리섬유층(30)에 마주하여 적층한다. 특히, 부직포층(40)은 루프패널의 틈새나 실내 등에서 발생한 습기나 수분 등을 흡수하고 헤드라이너의 구조적 강성을 보완한다.The nonwoven fabric layer 40 is laminated to face the glass fiber layer 30 described above, as shown in FIG. 3. In particular, the nonwoven fabric layer 40 absorbs moisture or moisture generated in gaps in the roof panel or indoors, and complements the structural rigidity of the headliner.

특히, 상기 부직포층(40)은 본 발명에 따른 헤드라이너 덕트 기재를 열 성형함에 따라 열가소성 접착 필름(20)이 녹으면서 유리섬유층(30)에 침투한 이 열가소성 접착 필름(20)이 부직포층(40)까지 침투하게 하여 더욱 견고하게 부착할 수 있게 된다.In particular, the nonwoven fabric layer 40 is the thermoplastic adhesive film 20 penetrated into the glass fiber layer 30 as the thermoplastic adhesive film 20 melts by thermoforming the headliner duct substrate according to the present invention. It penetrates up to 40) so that it can be attached more firmly.

이처럼 이루어진 본 발명에 따른 헤드라이너 덕트 기재는, 단위 면적당 중량이 800~900g/㎡으로 제작하여 사용하는 것이 바람직하다. 이때, 상기 헤드라이너 덕트 기재는 STM D790에 따른 굴곡 탄성률(Stiffness)이 1.5~3.5㎫이고, 굴곡 강도가 0.2N/㎠ 이상인 것이 바라직하다.The headliner duct substrate according to the present invention made as described above is preferably manufactured and used with a weight per unit area of 800 to 900 g/m 2. At this time, the headliner duct substrate preferably has a flexural modulus of 1.5 to 3.5 MPa and a flexural strength of 0.2N/cm2 or more according to STM D790.

한편, 본 발명에 따른 헤드라이너 덕트 기재(실시예)와 폴리우레탄 폼을 기재로 사용하는 기존 헤드라이너 덕트 기재(비교예)에 대한 굴곡 강도와 탄성률 시험 결과를 비교하면 다음과 같다.On the other hand, when comparing the flexural strength and elastic modulus test results of the headliner duct base material (Example) according to the present invention and the existing headliner duct base material (Comparative Example) using polyurethane foam as a base material as follows.


구분

division

실시예

Example

비교예

Comparative example

굴곡 강도(N/㎠)

Flexural strength (N/㎠)

0.2

0.2

0.205

0.205

굴곡 탄성률(㎫)

Flexural modulus (㎫)

2.0

2.0

1

One

1) 굴곡 강도와 굴곡 탄성률은 ASTM D790에 따라 실시한 결과임.

1) Flexural strength and flexural modulus are the results performed according to ASTM D790.

그 결과, 실시예와 비교예는 굴곡 강도에서는 같거나 실시예가 우수한 것을 알 수 있고, 특히 굴곡 탄성률은 실시예가 3㎫이고 비교예가 1㎫로, 실시예가 더 우수한 것을 알 수 있다.As a result, it can be seen that the Example and the Comparative Example are the same in the flexural strength or that the Example is superior, and in particular, the flexural modulus of the Example is 3 MPa and the Comparative Example is 1 MPa, and the Example is more excellent.

10: 폴리에스테르 발포층
20: 열가소성 접착 필름
30: 유리섬유층
40: 부직포층
10: polyester foam layer
20: thermoplastic adhesive film
30: glass fiber layer
40: nonwoven fabric layer

Claims (4)

폴리에스테르 발포층(10);
열가소성 접착 필름(20);
유리섬유층(30); 및
부직포층(40);을 차례로 적층하여 이루어진 것을 특징으로 하는 자동차용 헤드라이너 덕트 기재.
Polyester foam layer 10;
A thermoplastic adhesive film 20;
A glass fiber layer 30; And
A non-woven fabric layer 40; A headliner duct base material for automobiles, characterized in that it is formed by sequentially stacking.
제1항에서,
상기 폴리에스테르 발포층(10)은,
밀도가 300~400㎏/㎤, 두께가 2.0~3.0㎜인 것을 특징으로 하는 자동차용 헤드라이너 덕트 기재.
In claim 1,
The polyester foam layer 10,
A headliner duct base material for automobiles having a density of 300 to 400 kg/cm 3 and a thickness of 2.0 to 3.0 mm.
제1항 또는 제2항에서,
상기 헤드라이너 덕트 기재는,
ASTM D790에 따른 굴곡 탄성률(Stiffness)이 1.5~3.5㎫이고, 굴곡 강도가 0.2N/㎠ 이상인 것을 특징으로 하는 자동차용 헤드라이너 덕트 기재.
In claim 1 or 2,
The headliner duct base material,
A headliner duct substrate for automobiles having a flexural modulus of 1.5 to 3.5 MPa and a flexural strength of 0.2N/㎠ or more according to ASTM D790.
제1항 또는 제2항에서,
상기 헤드라이너 덕트 기재는,
단위 면적당 중량이 800~900g/㎡인 것을 특징으로 하는 자동차용 헤드라이너 덕트 기재.
In claim 1 or 2,
The headliner duct base material,
Headliner duct substrate for automobiles, characterized in that the weight per unit area is 800 to 900g/m2.
KR1020190148204A 2019-11-19 2019-11-19 Headliner duct material for vehicle KR20210062106A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020190148204A KR20210062106A (en) 2019-11-19 2019-11-19 Headliner duct material for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020190148204A KR20210062106A (en) 2019-11-19 2019-11-19 Headliner duct material for vehicle

Publications (1)

Publication Number Publication Date
KR20210062106A true KR20210062106A (en) 2021-05-31

Family

ID=76150020

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020190148204A KR20210062106A (en) 2019-11-19 2019-11-19 Headliner duct material for vehicle

Country Status (1)

Country Link
KR (1) KR20210062106A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102373518B1 (en) 2021-11-22 2022-03-14 최영호 A compression assembly device for a headliner and duct of a vehicle that are easy to change specifications
KR20230075569A (en) 2021-11-23 2023-05-31 (주)대한솔루션 Headliner for vehicles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100521879B1 (en) 2003-10-02 2005-10-17 현대자동차주식회사 Air duct structure using roof member
KR100836349B1 (en) 2006-12-15 2008-06-09 현대자동차주식회사 Air-ventilator duct structure installed at headlining
KR20190117940A (en) 2018-04-09 2019-10-17 (주)대한솔루션 Headliner roof duct for vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100521879B1 (en) 2003-10-02 2005-10-17 현대자동차주식회사 Air duct structure using roof member
KR100836349B1 (en) 2006-12-15 2008-06-09 현대자동차주식회사 Air-ventilator duct structure installed at headlining
KR20190117940A (en) 2018-04-09 2019-10-17 (주)대한솔루션 Headliner roof duct for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102373518B1 (en) 2021-11-22 2022-03-14 최영호 A compression assembly device for a headliner and duct of a vehicle that are easy to change specifications
KR20230075569A (en) 2021-11-23 2023-05-31 (주)대한솔루션 Headliner for vehicles

Similar Documents

Publication Publication Date Title
US7762375B2 (en) Soundproofing material
KR100882718B1 (en) The base material for vehicle head liner
JP2001500818A (en) Insulated car
US20060103172A1 (en) Frame for a panel in a vehicle
KR20210062106A (en) Headliner duct material for vehicle
WO2004089592A2 (en) Twin-sheet thermoforming process
JP4616836B2 (en) Sound absorber
KR20090008575A (en) The base material for vehicle ceiling
JP2013082243A (en) Soundproof sheet for automobile, method for manufacturing the same, and automobile dash silencer using the soundproof sheet
WO2002020312A2 (en) Multi-layered inside lining piece
US20040121691A1 (en) Multifunctional insulation article
JP6925082B2 (en) Sound absorbing material for automobiles
KR20190117938A (en) Headliner for vehicle
KR101567772B1 (en) High-strength, light-weight multilayered car interior substrate
CN107984818B (en) Vehicle undercover and method for manufacturing same
JPWO2019186970A1 (en) Automotive parts
JP2002002408A (en) Soundproof material for vehicle
KR102083902B1 (en) Material for head ling of vehicle
KR100883033B1 (en) The base material for vehicle head liner
US6935673B1 (en) Dashboard of a passenger motor vehicle and method of making same
KR20210013469A (en) Duct installed onto headliner for vehicle
KR20210100230A (en) PET Noise absorbent fabric using PET felt and manufacturing method of the same
KR20120133275A (en) Interior substrate for automobile using natural fiber and subsidiary materials
KR101968652B1 (en) Undershipping for vehicles with needle punching for improved absorption performance
KR20220161655A (en) Composite material for interior of vehicles

Legal Events

Date Code Title Description
E601 Decision to refuse application