KR101835442B1 - Sound insulation improved floor carpet for vehicle - Google Patents

Sound insulation improved floor carpet for vehicle Download PDF

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Publication number
KR101835442B1
KR101835442B1 KR1020160162455A KR20160162455A KR101835442B1 KR 101835442 B1 KR101835442 B1 KR 101835442B1 KR 1020160162455 A KR1020160162455 A KR 1020160162455A KR 20160162455 A KR20160162455 A KR 20160162455A KR 101835442 B1 KR101835442 B1 KR 101835442B1
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South Korea
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film layer
layer
floor carpet
sound insulation
present
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KR1020160162455A
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Korean (ko)
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권충호
이한민
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(주)대한솔루션
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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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/04—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets
    • B60N3/048—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets characterised by their structure
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2471/00—Floor coverings
    • B32B2471/02—Carpets

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Passenger Equipment (AREA)
  • Laminated Bodies (AREA)

Abstract

In the present invention, since a floor carpet is manufactured using an air permeable film layer formed by inserting a nylon film layer between two PO film layers, the nylon film layer has excellent heat resistance even when the floor carpet is thermoformed to provide a vehicle floor carpet with enhanced sound insulation. Moreover, the present invention provides a vehicle floor carpet in which the air permeable film layer is configured to selectively form ventilation holes of 0.1-3 mm to control a ventilation amount so as to obtain the sound insulation suited to different noise characteristics according to vehicle models. Further, the present invention provides a vehicle floor carpet which can increase the sound insulation without increasing a weight of the floor carpet since the air permeable film layer is manufactured with the same or similar thickness and weight as an existing air permeable film layer.

Description

차음성능을 개선한 자동차용 플로어 카펫{SOUND INSULATION IMPROVED FLOOR CARPET FOR VEHICLE}TECHNICAL FIELD [0001] The present invention relates to a floor carpet for a vehicle,

본 발명은 차음성능을 개선한 자동차용 플로어 카펫에 관한 것으로, 더욱 상세하게는 플로어 카펫을 구성하는 통기성 필름층을 제작할 때 두 개의 PO 필름층 사이에 나일론 필름층을 구성하여 일체로 형성함으로써, 열성형할 때 통기성 필름층이 녹거나 통기 구멍이 막혀 차음성능이 떨어지는 것을 최소화하여 차음성능을 높일 수 있게 한 것이다.The present invention relates to a floor carpet for automobiles which improves the sound insulation performance, and more particularly, to a floor carpet which improves the sound insulation performance. More specifically, when a breathable film layer constituting a floor carpet is manufactured, a nylon film layer is formed between two PO film layers, The air permeable film layer is melted or the ventilation holes are closed to minimize the deterioration of the sound insulation performance, thereby enhancing the sound insulation performance.

일반적으로 자동차의 실내 바닥에 설치하는 플로어 카펫은 헤드 라이닝과 함께 자동차 실내의 흡차음 대부분을 차지하는 중요한 부분을 차지한다. 이에, 플로어 카펫은, 아래의 특허문헌 1 내지 특허문헌 3과 같이 다양한 방법으로 제작하여 사용한다.Generally, floor carpets that are installed on the floor of an automobile occupy an important part of the car's interior, along with the head lining. Accordingly, the floor carpet is manufactured and used in various ways as in the following Patent Documents 1 to 3.

(특허문헌 1) 한국등록특허 제1544726호(Patent Document 1) Korean Patent No. 1544726

자동차 플로어 카페트 및 그 제조방법 관한 것으로, PLA(Polylactic acid) 칩 및 LLDPE(Linear Low Density Polyethylene) 칩의 혼합물을 포함하는 흡차음층; 상기 흡차음층 상에 형성된, 아크릴 수지(acrylic resin)로 형성된 접착층; 및 상기 접착층 상에 형성된, PET(polyethylene terephthalate) 섬유를 포함하는 표면층을 포함하는 자동차용 플로어 카펫에 관한 것이다.The present invention relates to a car floor carpet and a manufacturing method thereof, which comprises a sound absorbing layer comprising a mixture of PLA (Polylactic acid) chips and LLDPE (Linear Low Density Polyethylene) chips; An adhesive layer formed on the sound absorbing layer and formed of acrylic resin; And a surface layer comprising PET (polyethylene terephthalate) fibers formed on the adhesive layer.

(특허문헌 2) 한국등록특허 제1601658호(Patent Document 2) Korean Patent No. 1601658

2개의 흡음 층 사이에 흡음재의 강성을 보완할 수 있는 강성보강 층을 구성하되, 이 강성보강 층에 구멍이나 격자를 형성함으로써, 기본적으로 흡음재의 강성 보완을 통해 흡음재에 반복적인 하중이 가해지더라도 흡음재가 꺼지거나 눌리는 것을 방지하여 흡음재의 품질을 높이고, 특히 구멍이나 격자를 형성한 만큼 강성보강 층의 중량을 줄여 자동차 연비를 높이며, 또한 구멍이나 격자를 통과한 소음이 이웃한 흡음 층을 통해 2번에 걸쳐 흡음이 이루어지게 하여 흡음 성능을 높일 수 있게 한 자동차의 플로어 카펫용 흡음재를 제공하는 데 그 목적이 있다. 특히, 강성보강 층으로 얇은 두께로도 높은 강성과 유연성 그리고 내충격성과 차음성까지 갖춘 친환경 소재인 발포 폴리프로필렌(EPP)를 이용함으로써, 이처럼 운전자와 탑승자의 발부분을 통해 전달된 반복 하중에도 충분히 견딜 수 있을 뿐만 아니라 구멍이나 격자를 통해 2개의 흡음 층을 통해 2번에 걸친 흡음 효과를 얻을 수 있을 뿐만 아니라 중량 감소를 통해 연비를 높일 수 있게 한 자동차의 플로어 카펫용 흡음재를 제공하는 데 다른 목적이 있다.A rigid reinforcing layer is provided between the two sound-absorbing layers so as to complement the rigidity of the sound-absorbing material. By forming a hole or a lattice in the rigid reinforcing layer, basically, even when a repeated load is applied to the sound- The quality of the sound absorbing material is improved. Especially, the weight of the rigid reinforcing layer is reduced as much as the holes and the lattice are formed, so that the automobile fuel consumption is increased. Also, the noise passing through the holes and the lattice is transmitted through the neighboring sound- So that the sound absorbing performance can be improved. Particularly, by using foamed polypropylene (EPP), which is an eco-friendly material with high rigidity, flexibility, impact resistance and car audio even with a thin thickness as a rigid reinforcing layer, it is possible to withstand repeated loads transmitted through the foot portion of the driver and occupant Another object of the present invention is to provide a sound absorbing material for floor carpets of automobiles which not only can obtain sound absorption effect through two sound absorbing layers through holes or grids twice but also can increase fuel efficiency through weight reduction have.

(특허문헌 3) 한국등록특허 제1669849호(Patent Document 3) Korean Patent No. 1669849

자동차용 플로어 카펫 레이어에 관한 것으로, 발포고무층; 부직포; 유리섬유 및 PET섬유로 이루어지는 제1 PET 펠트층, 유리섬유 및 PP섬유로 이루어지는 PP펠트층, 제2 PET층, 라텍스층, 폴리에틸렌 파우더층; 및 파일원단층이 적층된 형태를 갖는다.The present invention relates to a floor carpet layer for automobiles, comprising a foamed rubber layer; Non-woven; A first PET felt layer made of glass fiber and PET fiber, a PP felt layer made of glass fiber and PP fiber, a second PET layer, a latex layer, and a polyethylene powder layer; And a file circular layer are stacked.

하지만, 기존 플로어 카펫은 다음과 같은 문제가 발생한다.However, existing floor carpets have the following problems.

(1) 통상 기존 플로어 카펫은 다층 구조로 이루어지므로, 열성형과 같이 고온과 고압으로 다층 구조를 일체로 성형하는 경우가 많다. 이에, 흡음과 차음성능을 얻으려고 사용하는 통기성 필름층이 열성형으로 파손될 우려가 있다.(1) Conventional floor carpet usually has a multi-layered structure, and therefore, in many cases, a multi-layered structure is integrally formed at a high temperature and a high pressure as in thermoforming. Therefore, there is a possibility that the breathable film layer used to obtain sound absorption and sound insulation performance is broken by thermoforming.

(2) 특히, 통기성 필름층은 PO(프로필렌옥사이드)로 제작하는 경우가 많은 데, 플로어 카펫 성형을 위한 열성형으로 고온 고압으로 성형할 때 이 통기성 필름이 녹으면서 원래 기능을 상실할 염려가 있다.(2) In particular, the air-permeable film layer is often made of PO (propylene oxide). When the air-permeable film is molded at high temperature and high pressure by thermoforming for floor carpet molding, there is a fear that the air- .

(3) 이처럼 통기성 필름층의 기능 상실은 플로어 카펫의 소음 성능을 떨어뜨려 자동차 하부에서 실내로 들어오는 소음에 대한 차음성능을 떨어뜨리는 요인으로 작용한다.(3) The loss of function of the breathable film layer deteriorates the noise performance of the floor carpet, thereby deteriorating the sound insulation performance against the noise coming into the room from the lower part of the automobile.

한국등록특허 제1544726호 (등록일 : 2015.08.10)Korean Registered Patent No. 1544726 (Registered on May 20, 2015) 한국등록특허 제1601658호 (등록일 : 2016.03.03)Korean Registered Patent No. 1601658 (Registered on Feb. 31, 2013) 한국등록특허 제1669849호 (등록일 : 2016.10.21)Korean Registered Patent No. 1669849 (Registered on October 20, 2016)

본 발명은 이러한 점을 고려한 것으로, 두 개의 PO 필름층 사이에 나일론 필름층을 삽입하여 제작한 통기성 필름층을 이용하여 플로어 카펫을 제작하므로, 나일론 필름층이 플로어 카펫을 열성형할 때도 우수한 내열성을 가지게 하여 열변형을 최소화하여 차음성능을 개선한 자동차용 플로어 카펫을 제공하는 데 그 목적이 있다.The present invention takes this point into consideration, and since the floor carpet is manufactured by using the air-permeable film layer formed by inserting the nylon film layer between the two PO film layers, the nylon film layer has excellent heat resistance even when the floor carpet is thermoformed And to provide a floor carpet for automobiles in which thermal deformation is minimized to improve sound insulation performance.

또한, 본 발명은 이러한 통기성 필름층에 0.1~3㎜의 통기 구멍을 선택적으로 형성할 수 있게 구성하므로, 차종에 따라 다른 소음 특성에 알맞은 차음성능을 얻을 수 있도록 통기량을 조절하여 제작할 수 있게 한 차음성능을 개선한 자동차용 플로어 카펫을 제공하는 데 다른 목적이 있다.In addition, since the air permeable film layer of the present invention is configured to selectively form the ventilation holes of 0.1 to 3 mm, it is possible to manufacture the ventilation film by adjusting the ventilation amount so as to obtain the sound insulation performance suited to other noise characteristics Another object is to provide an automotive floor carpet with improved sound insulation performance.

그리고, 본 발명은 상기 통기성 필름층을 기존 통기성 필름층과 같거나 유사한 두께와 중량으로 제작하므로, 플로어 카펫의 중량 증가 없이 차음 성능을 높일 수 있게 한 자동차용 플로어 카펫을 제공하는 데 또 다른 목적이 있다.Another object of the present invention is to provide a floor carpet for automobiles which can increase the sound insulation performance without increasing the weight of the floor carpet since the air permeable film layer is manufactured with the same or similar thickness and weight as the existing air permeable film layer have.

이러한 목적을 달성하기 위한 본 발명에 따른 차음성능을 개선한 자동차용 플로어 카펫은, BCF층(10); 하드 잡사 펠트층(20); 제1소프트 잡사 펠트층(30); 통기성 필름층(40); 및 제2소프트 잡사 펠트층(50);을 차례로 쌓아서 일체로 성형하되;, 상기 통기성 필름층(40)은, 제1PO 필름층(41), 나일론 필름층(42), 그리고 제2PO 필름층(43)을 차례로 쌓아서 일체로 형성한 것을 특징으로 한다.In order to achieve the above object, the present invention provides a floor carpet for a vehicle, which comprises a BCF layer (10); A hard hand-felt layer 20; A first soft hand-held felt layer (30); A breathable film layer (40); Wherein the air permeable film layer 40 is formed by stacking a first PO film layer 41, a nylon film layer 42 and a second PO film layer 43 are stacked in this order to form a single body.

특히, 상기 통기성 필름층(40)은, 통기 구멍(40')의 지름(d)이 0.1~3㎜인 것을 특징으로 한다.Particularly, the air-permeable film layer 40 is characterized in that the diameter d of the vent hole 40 'is 0.1 to 3 mm.

그리고, 본 발명에 따른 차음성능을 개선한 자동차용 플로어 카펫은, 두께가 25~35㎜이고, 단위 면적(500㎜*500㎜)당 중량이 0.5~0.7㎏인 것을 특징으로 한다.The floor carpet for automobiles having improved sound insulation performance according to the present invention is characterized by having a thickness of 25 to 35 mm and a weight per unit area (500 mm * 500 mm) of 0.5 to 0.7 kg.

본 발명에 따른 차음성능을 개선한 자동차용 플로어 카펫은 다음과 같은 효과가 있다.The floor carpet for automobiles having improved sound insulation performance according to the present invention has the following effects.

(1) 두 개의 PO 필름층 사이에 나일론 필름층을 삽입하여 통기성 필름층을 일체로 구성하므로, 통기성 필름층의 내열성을 높여 플로어 카펫을 열성형할 때 발생하는 고온 고압의 성형 조건에서도 쉽게 변형되거나 녹지 않게 하여 차음성능을 높일 수 있다.(1) Since the nylon film layer is inserted between the two PO film layers to integrally constitute the air-permeable film layer, heat resistance of the air-permeable film layer can be improved and it is easily deformed even under high temperature and high- The sound insulating performance can be improved.

(2) 또한, 상기 통기성 필름층은 기존 통기성 필름층과 같거나 유사한 두께와 중량으로 제작하므로, 플로어 카펫의 중량이 증가하는 것을 방지하면서도 차음 성능을 높일 수 있다.(2) Since the air-permeable film layer is made of the same or similar thickness and weight as the existing air-permeable film layer, it is possible to increase the sound-insulating performance while preventing the weight of the floor carpet from increasing.

(3) 통기성 필름층에 형성하는 통기 구멍을 0.1~3㎜ 범위에서 선택하여 형성할 수 있게 구성하므로, 차종 등에 따라 자동차 하부에서 실내로 들어오는 소음 특성을 고려하여 적절한 차음성능을 얻을 수 있게 통기 구멍의 크기를 조절하여 제작할 수 있다.(3) Since the ventilation holes formed in the air-permeable film layer can be formed in a range of 0.1 to 3 mm, the ventilation holes can be formed by selecting the ventilation holes Can be manufactured by adjusting the size of the substrate.

[도 1]은 플로어 카펫의 장착 위치를 보여주는 자동차의 측면도이다.
[도 2]는 본 발명에 따른 플로어 카펫의 구성을 보여주는 단면도이다.
[도 3]은 본 발명에 따라 플로어 카펫을 구성하는 통기성 필름층의 층 구조를 보여주는 단면도이다.
[도 4]는 본 발명에 따른 플로어 카펫(실시예)과 PO 필름층으로만 이루어진 기존 플로어 카펫(비교예)에 대하여 주파수 변화에 따른 흡음성능을 측정한 그래프이다.
[도 5]는 본 발명에 따른 플로어 카펫(실시예)과 PO 필름층으로만 이루어진 기존 플로어 카펫(비교예)에 대하여 주파수 변화에 따른 차음성능을 측정한 그래프이다.1 is a side view of a vehicle showing a mounting position of a floor carpet.
2 is a sectional view showing the construction of a floor carpet according to the present invention.
[Fig. 3] is a sectional view showing the layer structure of the air-permeable film layer constituting the floor carpet according to the present invention.
4 is a graph showing a sound absorption performance of a floor carpet (embodiment) according to the present invention and an existing floor carpet (comparative example) made of only a PO film layer according to a frequency change.
5 is a graph showing sound insulation performance of a floor carpet (embodiment) according to the present invention and an existing floor carpet made of a PO film layer (comparative example) according to frequency variation.

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 detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should properly define the concept of the term to describe its invention in the best possible way The present invention should be construed in accordance with the spirit and scope of the present invention.

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 merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Thus, various equivalents And variations may be present.

(구성)(Configuration)

본 발명에 따른 차음성능을 개선한 자동차용 플로어 카펫은, [도 1] 내지 [도 5]와 같이, BCF층(10), 하드 잡사 펠트층(20), 제1소프트 잡사 펠트층(30), 통기성 필름층(40), 그리고 제2소프트 잡사 펠트층(50)을 차례로 쌓아서 일체로 성형한다.The floor carpet for automobiles with improved sound insulation performance according to the present invention has a BCF layer 10, a hard hand-felt layer 20, a first soft hand-felt layer 30, The air-permeable film layer 40, and the second soft-handle felted layer 50 are stacked in this order and integrally molded.

특히, 상기 통기성 필름층(40)은 두 개의 PO 필름층 사이에 나일론 필름층을 삽입하여 일체로 성형하므로, 플로어 카펫을 열성형할 때 받는 고온 고압에도 통기성 필름층(40)이 변형이나 녹는 것을 막아주면서도 차음성능을 높일 수 있게 한 것이다. Particularly, since the air-permeable film layer 40 is formed integrally by inserting a nylon film layer between the two PO film layers, the air-permeable film layer 40 is deformed or melted So that the sound insulation performance can be improved while preventing it.

이하, 이러한 구성에 관해 더욱 상세하게 설명한다. 여기서, 플로어 카펫(C)은, [도 1]과 같이 자동차 실내의 바닥에 장착하여 자동차 하부에서 실내로 들어오는 소음 등을 차단하는 구성을 말한다. 여기서, 본 발명은 통기성 필름층(40)에 특이 구성이 있는 것으로, 다른 구성에 관해서는 간단히 설명하고 통기성 필름층(40)을 중심으로 설명한다.Hereinafter, such a configuration will be described in more detail. Here, the floor carpet C is a structure that is mounted on the floor of an automobile interior as shown in FIG. 1 and blocks noise or the like coming into the room from the lower portion of the automobile. Here, the present invention has a specific structure in the air-permeable film layer 40, and the other constitution will be briefly described, and the air-permeable film layer 40 will be mainly described.

BCF층(10)은, [도 2]와 같이, 장섬유 부피 가공사(Bulked Continuous Filament)로 제작한 층으로, 통상 카펫용으로 많이 사용하는 통상의 기술로 제작한 것을 말한다. 특히, BCF는 발모나 보푸라기가 생기지 않고 부피성과 내구성이 우수한 것으로 잘 알려져 있다.As shown in Fig. 2, the BCF layer 10 is a layer made of a long continuous filament and usually produced by a common technique used for carpet. In particular, BCF is well known for its excellent volumetric and durability without the occurrence of baldness or lint.

제1소프트 잡사 펠트층(30)과 제2소프트 잡사 펠트층(50)은, [도 2]와 같이, 후술할 통기성 필름층(40)을 중심으로 양쪽에 각각 쌓아서 일체로 형성한다. 여기서, 잡사 펠트층은 면이나 마 견 등의 천연 섬유와 나일론 섬유나 폴리에스터 섬유 등의 합성 섬유를 혼합한 통상의 기술로 제작한 펠트층을 말한다.The first soft hand-held felt layer 30 and the second soft hand-held felt layer 50 are stacked on both sides of the air-permeable film layer 40, which will be described later, as shown in Fig. Here, the felt felt layer refers to a felt layer produced by a conventional technique in which natural fibers such as cotton or hemp and synthetic fibers such as nylon fiber and polyester fiber are mixed.

또한, 소프트 잡사 펠트층이란, 이러한 잡사 펠트층을 롤러 등을 이용하여 가압하여 미리 정한 형태로 제작한 것을 말한다. 즉, 소프트 잡사 펠트층은 어느 정도 성긴 형태로 펠트층을 구성함으로써, 흡음성능을 주로 얻을 수 있게 하면서 차음성능도 함께 얻을 수 있게 한 펠트층을 말한다.The soft handwoven felt layer means that the above-mentioned handwoven felt layer is pressed and formed into a predetermined shape by using a roller or the like. That is, the soft felt felt layer refers to a felt layer that can achieve a sound absorbing performance while achieving a sound insulating performance by forming a felt layer in a sparse form to some extent.

하드 잡사 펠트층(20)은, [도 2]와 같이, 상술한 BCF층(10)과 제1소프트 잡사 펠트층(30) 사이에 삽입하여 구성한다. 여기서, 잡사 펠트층은 상술한 소프트 잡사 펠트층에서 설명한 바와 같이, 여러 가지 섬유를 혼합하여 제작한 펠트층을 말한다.The hard handwriting felt layer 20 is formed by interposing between the BCF layer 10 and the first soft handwoven felt layer 30 as shown in Fig. Here, the handwriting felt layer refers to a felt layer produced by mixing various fibers as described in the above-mentioned soft handwriting felt layer.

이때, 하드 잡사 펠트층(20)은 상술한 소프트 잡사 펠트층에 대해서 니들 펀칭 공정을 더 추가함으로써, 펠트층을 더욱 딱딱하게 견고하게 압축 성형한 펠트층을 말한다.At this time, the hard handwriting felt layer 20 refers to a felt layer obtained by compression-molding the felt layer more firmly by further adding a needle punching process to the above-described soft handwriting felt layer.

통기성 필름층(40)은, [도 2]와 같이, 상술한 제1소프트 잡사 펠트층(30)과 제2소프트 잡사 펠트층(50) 사이에 놓이게 하여 일체로 형성한다.The air-permeable film layer 40 is integrally formed by being sandwiched between the above-described first soft-handle felted layer 30 and the second soft-handle felt layer 50 as shown in Fig.

특히, 상기 통기성 필름층(40)은, [도 3]과 같이, 제1PO 필름층(41), 나일론 필름층(42), 그리고 제2PO 필름층(43)을 차례로 쌓아서 일체로 형성한다. 이러한 통기성 필름층(40)은 후술하는 소음성능, 특히 차음성능에서 기존 통기성 필름층보다 더욱 우수한 것을 알 수 있다. 이러한 특성에 관해서는 후술한다.Particularly, the air-permeable film layer 40 is integrally formed by stacking the first PO film layer 41, the nylon film layer 42, and the second PO film layer 43 in order, as shown in FIG. This air-permeable film layer 40 is superior to the conventional air-permeable film layer in terms of noise performance, particularly sound insulation performance, which will be described later. Such characteristics will be described later.

한편, 상기 통기성 필름층(40)은, [도 3]과 같이, 미리 정한 간격을 두고 통기 구멍(40')을 관통 형성한다. 이때, 통기 구멍(40')은 그 지름(d)을 0.1~3㎜로 형성할 수 있게 구성하므로, 차종 등에 따라 자동차 하부에서 실내로 들어오는 소음에 따라 다르게 요구되는 차음성능에 알맞게 통기 구멍(40')을 달리 제작하여 사용할 수 있게 구성한다.On the other hand, the air-permeable film layer 40 is formed to penetrate the vent hole 40 'at a predetermined interval as shown in Fig. Since the ventilation hole 40 'is formed to have a diameter d of 0.1 to 3 mm, the ventilation hole 40' may be formed in the ventilation hole 40 ' ') Can be constructed and used differently.

본 발명의 바람직한 실시예에서, 이처럼 이루어진 본 발명에 따른 플로어 카펫은 그 전체 두께를 25~35㎜로 제작하는 것이 바람직하다. 또한, 본 발명의 바람직한 실시예에서, 상기 플로어 카펫은 단위 면적(500㎜*500㎜)당 중량을 0.5~0.7㎏으로 제작하는 것이 바람직하다. 이는, 본 발명에 따른 플로어 카펫이 기존 플로어 카펫과 같거나 유사한 중량으로 제작하여 중량 증가가 거의 없게 하면서도 차음성능을 높일 수 있게 하고, 또한 플로어 카펫을 두껍지 않게 하여 한정된 자동차 실내 공간에서의 공간 활용도를 최대한 넓게 사용할 수 있게 하기 위함이다.In a preferred embodiment of the present invention, it is preferable that the floor carpet according to the present invention has a total thickness of 25 to 35 mm. Further, in a preferred embodiment of the present invention, the floor carpet preferably has a weight per unit area (500 mm * 500 mm) of 0.5 to 0.7 kg. This is because the floor carpet according to the present invention can be manufactured with the same or similar weight as that of the existing floor carpet so that the sound insulation performance can be improved while the weight is not increased and the floor carpet is not made thick, So that it can be used as widely as possible.

이처럼 이루어진 본 발명에 따른 통기성 필름층을 갖춘 플로어 카펫(실시예)과 PO 필름으로 제작한 기존 통기성 필름층을 갖춘 기존 플로어 카펫(비교예)에 대한 흡음성능과 차음성능을 비교하면 다음과 같다.The sound absorption performance and the sound insulation performance of a floor carpet (example) having the air permeable film layer according to the present invention and a conventional floor carpet (comparative example) having a conventional air permeable film layer made of the PO film are compared as follows.

[도 4]는 본 발명에 따른 실시예와 비교예에 대하여 주파수 변화에 따른 흡음성능을 보여주는 그래프로, 가로축은 주파수(㎐)를, 세로축은 흡음성능(㏈)을, 빨간선은 실시예의 흡음 성능 그래프를, 검은 선은 비교예의 흡음성능 그래프를 각각 나타낸다. 비교예와 실시예에 따른 흡음성능은, [도 4]와 같이, 실시예가 비교에보다 약 1㏈ 정도 떨어지는 것을 알 수 있다.4 is a graph showing a sound absorption performance according to a frequency change according to an embodiment of the present invention and a comparative example, wherein a horizontal axis represents a frequency (Hz), a vertical axis represents a sound absorption performance (dB) And a black line represents a sound absorption performance graph of a comparative example, respectively. It can be seen that the sound-absorbing performance according to the comparative example and the embodiment is about 1 dB lower than that of the comparative example, as shown in Fig.

[도 5]는 본 발명에 따른 실시예와 비교예에 대하여 주파수 변화에 따른 차음성능을 보여주는 그래프로, 가로축은 주파수(㎐)를, 세로축은 차음성능(SPL)(㏈)을, 빨간선은 실시예의 흡음 성능 그래프를, 검은 선은 비교예의 흡음성능 그래프를 각각 나타낸다. 비교예와 실시예에 따른 차음성능은, [도 5]와 같이, 실시예가 비교에보다 주파수의 세기가 세질수록 더욱 우수하며, 평균 약 6㏈ 정도 우수한 것을 알 수 있다.FIG. 5 is a graph showing the sound insulation performance according to the frequency change according to the embodiment of the present invention and the comparative example, wherein the horizontal axis represents the frequency (Hz), the vertical axis represents the sound insulation performance (SPL) And the black line represents a sound absorption performance graph of the comparative example, respectively. As shown in Fig. 5, the sound insulation performance according to the comparative example and the example is superior to that of the comparative example in comparison with the intensity of the frequency, and is about 6 dB better on average.

10 : BCF층
20 : 하드 잡사 펠트층
30 : 제1소프트 잡사 펠트층
40 : 통기성 필름층
41 : 제1PO 필름층
42 : 나일론 필름층
43 : 제2PO 필름층
50 : 제2소프트 잡사 펠트층10: BCF layer
20: hard hand-felt layer
30: first soft-handed felt layer
40: breathable film layer
41: first PO film layer
42: nylon film layer
43: Second PO film layer
50: second soft hand-felt layer

Claims (3)

BCF층(10);
하드 잡사 펠트층(20);
제1소프트 잡사 펠트층(30);
통기성 필름층(40); 및
제2소프트 잡사 펠트층(50);을 차례로 쌓아서 일체로 성형하되,
상기 통기성 필름층(40)은, 제1PO 필름층(41), 나일론 필름층(42), 그리고 제2PO 필름층(43)을 차례로 쌓아서 일체로 형성한 것을 특징으로 하는 차음성능을 개선한 자동차용 플로어 카펫.
A BCF layer 10;
A hard hand-felt layer 20;
A first soft hand-held felt layer (30);
A breathable film layer (40); And
And a second soft-handle felted layer (50) are stacked in this order,
Characterized in that the air permeable film layer (40) is integrally formed by sequentially stacking a first PO film layer (41), a nylon film layer (42) and a second PO film layer (43) Floor carpets.
제1 항에서,
상기 통기성 필름층(40)은,
통기 구멍(40')의 지름(d)이 0.1~3㎜인 것을 특징으로 하는 차음성능을 개선한 자동차용 플로어 카펫.
The method of claim 1,
The air-permeable film layer (40)
And the diameter d of the ventilation hole 40 'is 0.1 to 3 mm.
제1 항 또는 제2 항에서,
상기 플로어 카펫은,
두께가 25~35㎜이고,
단위 면적(500㎜*500㎜)당 중량이 0.5~0.7㎏인 것을 특징으로 하는 차음성능을 개선한 자동차용 플로어 카펫.3. The method according to claim 1 or 2,
The floor carpet includes:
A thickness of 25 to 35 mm,
Wherein the weight per unit area (500 mm * 500 mm) is 0.5 to 0.7 kg.
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CN111251398A (en) * 2020-02-18 2020-06-09 微山宏瑞电力科技有限公司 Heat-adaptive environment-friendly sound insulation floor and manufacturing method thereof
KR20210014782A (en) 2019-07-30 2021-02-10 (주)대한솔루션 Fabrication method of fabric using super fabric and the fabric using the same
KR20210014783A (en) 2019-07-30 2021-02-10 (주)대한솔루션 Carpet fabrics using super fabric for vehicle
KR102214761B1 (en) 2019-09-09 2021-02-15 강병하 Multi layer non-woven fabric for autumobile floor carpet
KR20220169991A (en) 2021-06-22 2022-12-29 (주)대한솔루션 Floor insulation for vehicles
KR20240028610A (en) 2022-08-25 2024-03-05 (주)대한솔루션 Floor carpet for vehicles

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JPH0939177A (en) * 1995-07-31 1997-02-10 Ikeda Bussan Co Ltd Upholstery for rolling stock and its manufacture
JP2003345363A (en) * 2002-05-28 2003-12-03 Kasai Kogyo Co Ltd Sound absorbing material for vehicle
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210014782A (en) 2019-07-30 2021-02-10 (주)대한솔루션 Fabrication method of fabric using super fabric and the fabric using the same
KR20210014783A (en) 2019-07-30 2021-02-10 (주)대한솔루션 Carpet fabrics using super fabric for vehicle
KR102214761B1 (en) 2019-09-09 2021-02-15 강병하 Multi layer non-woven fabric for autumobile floor carpet
CN111251398A (en) * 2020-02-18 2020-06-09 微山宏瑞电力科技有限公司 Heat-adaptive environment-friendly sound insulation floor and manufacturing method thereof
KR20220169991A (en) 2021-06-22 2022-12-29 (주)대한솔루션 Floor insulation for vehicles
KR20240028610A (en) 2022-08-25 2024-03-05 (주)대한솔루션 Floor carpet for vehicles

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