KR101131605B1 - A height acoustic-absorptivity headliner for vehicle - Google Patents
A height acoustic-absorptivity headliner for vehicle Download PDFInfo
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- KR101131605B1 KR101131605B1 KR1020090118526A KR20090118526A KR101131605B1 KR 101131605 B1 KR101131605 B1 KR 101131605B1 KR 1020090118526 A KR1020090118526 A KR 1020090118526A KR 20090118526 A KR20090118526 A KR 20090118526A KR 101131605 B1 KR101131605 B1 KR 101131605B1
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- 239000000463 material Substances 0.000 claims abstract description 41
- -1 Polypropylene Polymers 0.000 claims abstract description 40
- 239000004743 Polypropylene Substances 0.000 claims abstract description 34
- 229920001155 polypropylene Polymers 0.000 claims abstract description 34
- 239000012943 hotmelt Substances 0.000 claims abstract description 33
- 229920000728 polyester Polymers 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 239000004744 fabric Substances 0.000 claims abstract description 16
- 235000011777 Corchorus aestuans Nutrition 0.000 claims abstract description 9
- 235000010862 Corchorus capsularis Nutrition 0.000 claims abstract description 9
- 239000004745 nonwoven fabric Substances 0.000 claims description 23
- 239000006260 foam Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 240000000491 Corchorus aestuans Species 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920013716 polyethylene resin Polymers 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 240000004792 Corchorus capsularis Species 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 120
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000758 substrate Substances 0.000 description 6
- 238000010030 laminating Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 239000012462 polypropylene substrate Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
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- 239000011347 resin Substances 0.000 description 1
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- 230000035939 shock Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Classifications
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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
- 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
-
- 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
- B32B7/00—Layered 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
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
-
- 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
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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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0292—Polyurethane fibres
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
- B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- 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
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Laminated Bodies (AREA)
Abstract
본 발명은 차량용 고흡음성 천정재에 관한 것으로, 기재층, 전술한 기재층의 상부면에 형성되는 통기성 핫멜트필름층 및 전술한 통기성 핫멜트필름층의 상부면에 형성되는 원단층을 포함하여 이루어진다.The present invention relates to a high-absorptive ceiling material for a vehicle, comprising a base layer, a breathable hot melt film layer formed on the upper surface of the above-described base layer, and a fabric layer formed on the upper surface of the above-mentioned breathable hot melt film layer.
전술한 차량용 고흡음성 천정재는 통기성 핫멜트필름층이 형성되어 종래에 천정재에 비해 흡음성이 탁월하게 향상되는 효과를 나타낸다.The above-described high-absorptive ceiling material for a vehicle is formed with a breathable hot melt film layer, and thus exhibits an effect of excellent sound absorption compared to the ceiling material.
차량, 천정재, 통기성, 핫멜트, 필름, 폴리에스터, 황마섬유, 폴리프로필렌, 기포지 Vehicle, Ceiling, Breathable, Hot Melt, Film, Polyester, Jute Fiber, Polypropylene, Bubble
Description
본 발명은 통기성 핫멜트필름층이 형성되어 흡음성능이 우수한 차량용 고흡음성 천정재에 관한 것으로, 보다 상세하게는 기재층, 전술한 기재층의 상부면에 형성되는 통기성 핫멜트필름층 및 전술한 통기성 핫멜트필름층의 상부면에 형성되는 원단층을 포함하여 이루어진다.The present invention relates to a high-absorptive ceiling material for a vehicle having a breathable hot melt film layer having excellent sound absorption performance, and more particularly, a breathable hot melt film layer formed on the upper surface of the substrate layer, the substrate layer described above, and the breathable hot melt film described above. It comprises a fabric layer formed on the upper surface of the layer.
본 발명은 차량용 천정재에 관한 것으로, 기재층, 전술한 기재층의 상부면에 형성되는 통기성 핫멜트필름층 및 전술한 통기성 핫멜트필름층의 상부면에 형성되는 원단층을 포함하여 이루어진다.The present invention relates to a vehicle ceiling material, comprising a base layer, a breathable hot melt film layer formed on the upper surface of the above-described base layer and a fabric layer formed on the upper surface of the above-mentioned breathable hot melt film layer.
차량용 천정재는 자동차의 실내 천정에 설치되어 외부로부터 차량의 실내로 유입되는 소음을 차단하고, 차량 내부와 외부의 열전달을 차단하는 단열성의 향상을 위해 사용된다.The vehicle ceiling material is installed on the interior ceiling of a vehicle to block the noise flowing into the interior of the vehicle from the outside, and is used to improve the thermal insulation to block heat transfer inside and outside the vehicle.
종래에 차량용 천정재는 펠트나 부직포 등의 다수의 공극이 존재하는 재료로 이루어진 기재층과 전술한 기재층의 상부면에 형성되는 핫멜트필름층 및 전술한 핫멜트필름층의 상부면에 형성되는 원단층으로 이루어진 구조로 적용되었는데, 냉각성형공법으로 천정재를 제조할 경우 핫멜트필름층이 갖는 비통기성으로 인해 펠트나 부직포 등의 재료가 갖는 흡음효과를 감쇠시키는 문제점이 있었다.Conventionally, the ceiling material for a vehicle includes a base layer formed of a material having a plurality of voids such as felt or nonwoven fabric, a hot melt film layer formed on the upper surface of the above-described base layer, and a fabric layer formed on the upper surface of the above-described hot melt film layer. When the ceiling material is manufactured by the cooling molding method, there is a problem of attenuating the sound absorption effect of materials such as felt or nonwoven fabric due to the non-breathability of the hot melt film layer.
본 발명의 목적은, 통기성 핫멜트필름층이 형성되어 펠트 및 부직포와 같은 재료가 갖는 흠음효과를 증대시킬 수 있는 고흡음성 천정재를 제공하는 것이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a superabsorbent ceiling material which is formed with a breathable hot melt film layer to increase the scratch effect of materials such as felt and nonwoven fabrics.
본 발명의 목적은 기재층, 상기 기재층의 상부면에 형성되는 통기성 핫멜트필름층 및 상기 통기성 핫멜트필름층의 상부면에 형성되는 원단층을 포함하여 이루어지는 것을 특징으로 하는 차량용 고흡음성 천정재를 제공함에 의해 달성된다.An object of the present invention is to provide a high-absorptive ceiling material for a vehicle comprising a base layer, a breathable hot melt film layer formed on the upper surface of the base layer and a fabric layer formed on the upper surface of the breathable hot melt film layer. Is achieved by.
본 발명의 바람직한 특징에 따르면, 상기 기재층은 황마섬유 40 내지 60 중량부와 폴리프로필렌섬유 40 내지 60 중량부로 이루어진 펠트층, 상기 펠트층의 양면에 적층되는 폴리프로필렌기포지층 및 상기 폴리프로필렌기포지층에 적층되는 폴리에스터부직포층을 포함하여 이루어지는 것으로 한다.According to a preferred feature of the invention, the base layer is a felt layer consisting of 40 to 60 parts by weight of jute fibers and 40 to 60 parts by weight of polypropylene fibers, a polypropylene foam layer and the polypropylene foam layer laminated on both sides of the felt layer The polyester nonwoven fabric layer laminated | stacked on shall be included.
본 발명의 더 바람직한 특징에 따르면, 상기 기재층은 황마섬유 40 내지 60 중량부와 폴리프로필렌섬유 40 내지 60 중량부로 이루어진 펠트층, 상기 펠트층의 일면에 적층되는 폴리프로필렌기포기층 및 상기 폴리프로필렌기포지층의 일면과 상기 펠트층의 타면에 적층되는 폴리에스터부직포층을 포함하여 이루어지는 것으로 한다.According to a more preferable feature of the invention, the base layer is a felt layer consisting of 40 to 60 parts by weight of jute fibers and 40 to 60 parts by weight of polypropylene fibers, a polypropylene bubble layer and a polypropylene bubble laminated on one surface of the felt layer It is supposed to include a polyester nonwoven fabric layer laminated on one surface of the ground layer and the other surface of the felt layer.
본 발명의 더욱 바람직한 특징에 따르면, 상기 폴리에스터부직포층의 일면에 는 폴리에틸렌분말이 13 내지 50g/m2의 두께로 도포되는 것으로 한다.According to a more preferred feature of the invention, one surface of the polyester nonwoven layer is to be coated with a polyethylene powder of 13 to 50g / m 2 in thickness.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 통기성 핫멜트필름층은 30 내지 50㎛ 두께의 폴리에틸렌 수지에 직경이 0.1 내지 2mm인 기공을 1 내지 40mm의 간격으로 형성하여 이루어지는 것으로 한다.According to a further preferred feature of the present invention, the breathable hot melt film layer is formed by forming a pore having a diameter of 0.1 to 2mm in the interval of 1 to 40mm in a polyethylene resin of 30 to 50㎛ thickness.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 원단층은 폴리에스터 부직포, 폴리에스터 부직포와 폴리우레탄의 적층체, 폴리에스터 니트와 폴리우레탄의 적층체로 이루어진 그룹으로부터 선택된 하나로 이루어지는 것으로 한다.According to a further preferred feature of the invention, the fabric layer is made of one selected from the group consisting of a polyester nonwoven fabric, a polyester nonwoven fabric and a polyurethane laminate, a polyester knit and a polyurethane laminate.
본 발명에 따른 차량용 고흡음성 천정재는 펠트나 부직포와 같은 재료가 갖는 흡음효과를 증대시키는 탁월한 효과를 나타낸다.The high-absorptive ceiling material for a vehicle according to the present invention exhibits an excellent effect of increasing the sound absorption effect of a material such as felt or nonwoven fabric.
이하에는, 본 발명의 바람직한 실시예와 각 성분의 물성을 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.In the following, preferred embodiments of the present invention and the physical properties of each component will be described in detail, which is intended to explain in detail enough to be able to easily carry out the invention by one of ordinary skill in the art, This does not mean that the technical spirit and scope of the present invention is limited.
본 발명에 따른 차량용 고흡음성 천정재는 기재층(10), 전술한 기재층(10)의 상부면에 형성되는 통기성 핫멜트필름층(20) 및 전술한 통기성 핫멜트필름층(20)의 상부면에 형성되는 원단층(30)을 포함하여 이루어진다.The high-absorptive ceiling material for a vehicle according to the present invention is formed on the upper surface of the breathable hot
전술한 기재층(10)은 기재층은 황마섬유 40 내지 60 중량부와 폴리프로필렌섬유 40 내지 60 중량부로 이루어진 펠트층(11), 전술한 펠트층(11)의 양면에 적층되는 폴리프로필렌기포지층(12) 및 전술한 폴리프로필렌기포지층(12)에 적층되는 폴리에스터부직포층(13)을 포함하여 이루어진다.The
또한, 전술한 기재층(10)은 황마섬유 40 내지 60 중량부와 폴리프로필렌섬유 40 내지 60 중량부로 이루어진 펠트층(11), 전술한 펠트층(11)의 일면에 적층되는 폴리프로필렌기포기층(12) 및 전술한 폴리프로필렌기포지층(12)의 일면과 전술한 펠트층(11)의 타면에 적층되는 폴리에스터부직포층(13)을 포함하여 이루어질 수도 있다.In addition, the above-described
이때, 전술한 펠트층(11)은 천연섬유 40 내지 60 중량부와 폴리프로필렌섬유 40 내지 60 중량부를 혼섬 및 카딩하여 제조된 웹을 적층하여 이루어지는데, 제조과정에서 형성된 섬유 간의 공극으로 인해 흡음성이 우수하고, 단열효과 및 중량이 가벼운 특성을 나타낸다.At this time, the above-described
전술한 폴리프로필렌기포지층(12)은 전술한 펠트층(11)의 일면 또는 양면에 적층된 후에 니들펀칭 공법으로 펠트층(11)과 결합되어 펠트층(11)이 성형과정에서 끊어지는 것을 방지하며, 차량용 고흡음성 천정재의 기계적 강도를 향상시키는 역할을 한다.The aforementioned
전술한 폴리에스터부직포층(13)은 전술한 폴리프로필렌기포지층(12)에 적층되거나, 폴리프로필렌기포지층(12)이 펠트층(11)의 일면에만 형성되는 경우에는 폴리프로필렌기포지층(12)의 일면과 전술한 펠트층(11)의 타면에 적층되는데, 폴리에스터부직포층(13)이 폴리프로필렌기포지층(12)이나 펠트층(11)과 접하는 면에는 폴리에틸렌분말을 13 내지 50g/m2의 두께로 도포하여, 낮은 온도에서도 잘 결합할 수 있도록 한다.The above-described polyester
이러한 폴리에스터부직포층(13)은 적층 후에 가열된 롤러를 이용하여 열압착하는 과정을 통해 폴리프로필렌기포지층(12) 또는 펠트층(11)과 결합하며, 차량용 고흡음성 천정재를 제조하는 과정에서 기재층(10)이 예열장치에 달라붙는 것을 방지하고, 차량용 고흡음성 천정재가 제조된 후에는 천정재의 외관품질을 개선하는 역할을 한다.The polyester
전술한 통기성 핫멜트필름층(20)은 전술한 기재층(10)의 상부면에 형성되며, 30 내지 50㎛ 두께의 폴리에틸렌 수지에 핀치롤 공정으로 직경이 0.1 내지 2mm인 기공을 1 내지 40mm의 간격으로 형성하여 이루어지는데, 이러한 통기성 핫멜트필름층(20)은 전술한 기재층(10)과 전술한 원단층(30)을 접착하는 역할을 한다.The above-mentioned breathable hot
전술한 통기성 핫멜트필름층(20)을 형성하는 폴리에틸렌 수지는 용융온도가 80 내지 120℃이며, 전술한 기공의 통기성은 104cc/cm2/sec인데, 이러한 통기성을 갖는 기공의 형성으로 인해 원단층(30)을 통과한 소음이 통기성 핫멜트필름층(20) 에 형성된 기공을 통해 기재층(10)에 전달되고 흡음되기 때문에, 차량용 고흡음성 천정재의 흡음성이 향상된다.The polyethylene resin forming the above-mentioned breathable hot
전술한 원단층(30)은 전술한 통기성 핫멜트필름층(20)의 상부면에 형성되며, 폴리에스터 부직포, 폴리에스터 부직포와 폴리우레탄의 적층체, 폴리에스터 니트와 폴리우레탄의 적층체로 이루어진 그룹으로부터 선택된 하나로 이루어지는데, 이러한 원단층(30)은 차량용 고흡음성 천정재를 차량에 적용할 경우 차량의 실내방향에 위치하여 차량 내부의 품질을 개선하는 역할을 한다.The above-described
이때, 전술한 폴리우레탄의 경우 원단층(30)의 촉감을 향상시키고, 충격을 흡수하는 역할을 하며, 열린셀(OPEN CELL)구조로 형성되어, 차량용 고흡음성 천정재의 흡음효과를 향상시키는 역할을 한다.In this case, in the case of the above-mentioned polyurethane, the texture of the
이하에서는 본 발명에 따른 차량용 고흡음성 천정재의 제조방법 및 흡음효과를 실시예를 들어 설명한다.Hereinafter, a manufacturing method and a sound absorbing effect of the high-absorptive ceiling material for a vehicle according to the present invention will be described with reference to Examples.
<실시예 1>≪ Example 1 >
황마섬유 50 중량부 및 폴리프로필렌섬유 50 중량부를 혼면하여 면밀도가 1000g/m2인 펠트층(11)을 형성하고, 펠트층(11)의 양면에 면밀도가 50g/m2인 폴리프로필렌기포지층(12)을 적층하여 니들펀칭하고, 폴리프로필렌기포지층(12)과 접촉하 는 면에 폴리에틸렌분말이 13g/m2로 도포된 폴리에스터부직포층(13)을 적층한 후에 200℃로 예열된 롤러로 열압착하여 두께가 2.5mm인 기재층(10)을 제조하고, 기재층(10)의 상부면에 50㎛의 두께를 가지며 직경이 0.2mm이고 간격이 2.5mm인 기공이 형성된 폴리에틸렌필름으로 이루어진 통기성 핫멜트필름층(20)을 적층하고, 통기성 핫멜트필름층(20)의 상부면에 면밀도가 220g/m2이고 두께가 1.5mm인 폴리에스터 부직포로 이루어진 원단층(30)을 적층하고, 원단층(30)이 적층된 적층체를 예열한 후에 성형금형으로 이송하고 냉간성형공법을 이용하여 차량용 고흡음성 천정재를 제조하였다.Jute fiber 50 parts by weight and polypropylene fibers of 50 parts by weight of honmyeon by the area density is the area density on both sides of the form a 1000g / m 2 of the
<실시예 2><Example 2>
실시예 1과 동일하게 진행하되, 펠트층(11)의 일면에 면밀도가 50g/m2인 폴리프로필렌기포지층(12)을 적층하여 차량용 고흡음성 천정재를 제조하였다.Proceed in the same manner as in Example 1, a
<실시예 3><Example 3>
실시예 1과 동일하게 진행하되, 기재층(10)의 두께가 3.5mm인 차량용 고흡음성 천정재를 제조하였다.Proceed in the same manner as in Example 1, a high-absorptive ceiling material for a vehicle having a thickness of 3.5 mm was prepared.
<비교예 1>Comparative Example 1
황마섬유 50 중량부 및 폴리프로필렌섬유 50 중량부를 혼면하여 면밀도가 1000g/m2인 펠트층을 형성하고, 펠트층의 양면에 면밀도가 50g/m2인 폴리프로필렌기포지층을 적층하고 니들펀칭하고, 폴리프로필렌기포지층에 폴리프로필렌기포지층과 접촉하는 면에 폴리에틸렌분말이 13g/m2로 도포된 폴리에스터부직포층을 적층한후에 200℃로 예열된 롤러로 열압착하여 두께가 2.5mm인 기재층을 제조하고, 기재층의 상부면에 50㎛의 두께를 갖는 폴리에틸렌필름으로 이루어진 핫멜트필름층을 적층하고, 핫멜트필름층의 상부면에 면밀도가 220g/m2이고 두께가 1.5mm인 폴리에스터 부직포를 적층하고, 적층체를 예열한 후에 성형금형으로 이송하고 냉간성형공법을 이용하여 차량용 천정재를 제조하였다.Jute fiber 50 parts by weight of polypropylene to fiber honmyeon 50 parts by weight of surface density is to form a felt layer 1000g / m 2, and the area density is laminated to the polypropylene foam layers 50g / m 2 on both surfaces of the felt layer and needle punching, and poly preparing a substrate layer having a thickness of 2.5mm and a polyethylene powder on the surface in contact with the polypropylene resin foam to polypropylene foam layers 13g / m 2 polyester laminating a non-woven fabric layer hanhue thermocompression bonding with a roller coated with a pre-heated to 200 ℃ Laminate a hot melt film layer consisting of a polyethylene film having a thickness of 50㎛ on the upper surface of the base layer, a polyester nonwoven fabric having a surface density of 220g / m 2 and a thickness of 1.5mm on the upper surface of the hot melt film layer After the laminate was preheated, it was transferred to a molding mold, and a ceiling material for a vehicle was manufactured by using a cold forming method.
<비교예 2>Comparative Example 2
비교예 1과 동일하게 진행하되, 펠트층의 일면에 면밀도가 50g/m2인 폴리프로필렌기포지층을 적층하여 차량용 천정재를 제조하였다.Proceed in the same manner as in Comparative Example 1, a vehicle ceiling material was prepared by laminating a polypropylene foam layer having a surface density of 50 g / m 2 on one surface of the felt layer.
<비교예 3>≪ Comparative Example 3 &
비교예 1과 동일하게 진행하되, 기재층의 두께가 3.5mm인 차량용 천정재를 제조하였다.Proceed in the same manner as in Comparative Example 1, a vehicle ceiling material having a thickness of 3.5mm was prepared.
실시예 1 내지 3을 통해 제조된 차량용 고흡음성 천정재와 비교예 1 내지 3 을 통해 제조된 차량용 천정재의 흡음율을 표준 잔향실 1/3 축소 크기인 간이 잔향실(SRC, Semi Reverberation Chamber)법을 이용하여 특정한 결과를 아래 표 1에 나타내었다.The SRC (Semi Reverberation Chamber) method of reducing the sound absorption rate of the high-absorptive ceiling material for vehicles manufactured in Examples 1 to 3 and the vehicle ceiling material manufactured in Comparative Examples 1 to 3 is reduced by 1/3 of the standard reverberation chamber. Specific results are shown in Table 1 below.
<표 1>TABLE 1
위에 표 1에 나타낸 것처럼 본 발명에 의해 제조된 차량용 고흡음성 천정재는 종래에 차량용 천정재에 비해 월등하게 향상된 흡음효과를 나타내는 것을 알 수 있다.As shown in Table 1 above, it can be seen that the high-absorptive ceiling material for a vehicle manufactured by the present invention exhibits a sound absorption effect which is significantly improved as compared to the conventional ceiling material for a vehicle.
도 1은 본 발명의 일실시예에 의해 제조된 차량용 고흡음성 청정재를 나타낸 분해사시도이다.1 is an exploded perspective view showing a super sound-absorbing cleaning material for a vehicle manufactured according to an embodiment of the present invention.
도 2는 본 발명의 다른 실시예에 의해 제조된 차량용 고흡음성 천정재를 나타낸 분해사시도이다.Figure 2 is an exploded perspective view showing a high-absorptive ceiling material for a vehicle manufactured by another embodiment of the present invention.
도 3은 본 발명에 의해 제조된 차량용 고흡음성 천정재에 사용되는 통기성 핫멜트필름층의 현미경사진이다.Figure 3 is a micrograph of a breathable hot melt film layer used in a vehicle superabsorbent ceiling material prepared by the present invention.
도 4는 본 발명에 의해 제조된 차량용 고흡음성 천정재에 사용되는 통기성 핫멜트필름층에 형성되는 기공의 현미경사진이다.Figure 4 is a micrograph of the pores formed in the breathable hot melt film layer used in the vehicle-acoustic absorbent ceiling material prepared by the present invention.
도 5는 본 발명의 실시예 1 내지 3과 비교예 1 내지 3에 의해 제조된 차량용 고흡음성 천정재의 흡음율을 나타낸 그래프이다.5 is a graph showing the sound absorption rate of the high-absorptive ceiling material for a vehicle manufactured by Examples 1 to 3 and Comparative Examples 1 to 3 of the present invention.
***도면의 주요 부분에 대한 설명****** Description of the main parts of the drawings ***
10 ; 기재층 20 ; 통기성 핫멜트필름층10;
11 ; 펠트층 30 ; 원단층11;
12 ; 폴리프로필렌기포지층12; Polypropylene Foam Layer
13 ; 폴리에스터부직포층13; Polyester nonwoven layer
Claims (6)
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| KR101507100B1 (en) * | 2013-06-24 | 2015-03-30 | 코오롱글로텍주식회사 | High adhesive polypropylene fiber and car inner plate containing said the fiber |
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| KR101306321B1 (en) * | 2011-10-11 | 2013-09-09 | 엔브이에이치코리아(주) | Headliner of having a height acoustic absorptivity for vehicle |
| KR101324790B1 (en) * | 2011-10-27 | 2013-10-31 | 엔브이에이치코리아(주) | Headliner of having a height acoustic-absorptivity for vehicle |
| AT513747B1 (en) | 2013-02-28 | 2014-07-15 | Mikroelektronik Ges Mit Beschränkter Haftung Ab | Assembly process for circuit carriers and circuit carriers |
| KR101488308B1 (en) * | 2013-05-06 | 2015-01-30 | 현대자동차주식회사 | Sound absorbing and sound blocking reinforced board for a vehicle and the method of manufacturing the same |
| CN119749000B (en) * | 2025-03-06 | 2025-06-13 | 烟台正海合泰科技股份有限公司 | Composite material for automobile roof and preparation method thereof |
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| JP2001301539A (en) * | 2000-04-19 | 2001-10-31 | Inoac Corp | Molded roof lining for vehicle and its manufacturing method |
| JP2006160197A (en) * | 2004-12-10 | 2006-06-22 | Kureha Ltd | Interior trim material for vehicle good in sound absorbing performance |
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| JP2001301539A (en) * | 2000-04-19 | 2001-10-31 | Inoac Corp | Molded roof lining for vehicle and its manufacturing method |
| JP2006160197A (en) * | 2004-12-10 | 2006-06-22 | Kureha Ltd | Interior trim material for vehicle good in sound absorbing performance |
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| KR101507100B1 (en) * | 2013-06-24 | 2015-03-30 | 코오롱글로텍주식회사 | High adhesive polypropylene fiber and car inner plate containing said the fiber |
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