KR100428286B1 - Producing method of the polyester sound absorptive material having multiple web fiber structure - Google Patents
Producing method of the polyester sound absorptive material having multiple web fiber structure Download PDFInfo
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- KR100428286B1 KR100428286B1 KR10-2000-0068964A KR20000068964A KR100428286B1 KR 100428286 B1 KR100428286 B1 KR 100428286B1 KR 20000068964 A KR20000068964 A KR 20000068964A KR 100428286 B1 KR100428286 B1 KR 100428286B1
- Authority
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- South Korea
- Prior art keywords
- polyester
- absorbing material
- melting point
- low
- polyester fibers
- Prior art date
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- 229920000728 polyester Polymers 0.000 title claims abstract description 63
- 239000000835 fiber Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 title claims description 8
- 238000002844 melting Methods 0.000 claims abstract description 57
- 230000008018 melting Effects 0.000 claims abstract description 48
- 239000011358 absorbing material Substances 0.000 claims abstract description 30
- 239000010410 layer Substances 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 239000002344 surface layer Substances 0.000 claims abstract description 7
- 238000009960 carding Methods 0.000 claims description 14
- 238000010030 laminating Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 208000003251 Pruritus Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 230000007803 itching Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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
- 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
-
- 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
Abstract
본 발명은 호텔이나 회의실과 같은 일반 건물이나 자동차 또는 도로 방음벽 등에 사용되는 복합적층 폴리에스터 흡음재의 제조방법에 관한 것으로서, 특히 기존의 흡음재에 비해 흡음 성능이 우수하고 운송 및 시공이 가능하여 설치 비용이 저렴하고 재활용이 가능한 등의 장점을 지닌 새로운 구조의 폴리에스터 흡음재를 제공하는데 그 목적이 있는 것이다.The present invention relates to a method for manufacturing a composite laminated polyester sound absorbing material used in a general building such as a hotel or a meeting room, a car or a road soundproofing wall, and more particularly, compared to a conventional sound absorbing material, having excellent sound absorption performance and transport and construction. It is an object of the present invention to provide a polyester sound absorbing material of a new structure with the advantages of being inexpensive and recyclable.
본 발명은 상기와 같은 목적을 달성하기 위한 일방법으로, 저융점 폴리에스터 섬유가 다량 함유된 구조의 일 방향성 폴리에스터 섬유웹을 표면층으로 하고, 고융점 폴리에스터 섬유와 저융점 폴리에스터 섬유가 대략 비슷한 수준 함유된 3차원 구조의 섬유웹 1종 내지 3종을 내부층으로 하고, 고융점 폴리에스터 섬유와 저융점 폴리에스터 섬유가 대략 비슷한 수준 함유된 일 방향성 섬유웹을 최하층으로 하는 3∼5층 구조의 복합적층 폴리에스터 흡음재의 제조법을 개시한다.The present invention is a method for achieving the above object, the unidirectional polyester fiber web of the structure containing a large amount of low-melting polyester fibers as a surface layer, the high-melting polyester fibers and low-melting polyester fibers are approximately Three to five layers having one to three kinds of fibrous webs of similar three-dimensional structure as inner layers, and a unidirectional fibrous web containing approximately similar levels of high melting polyester fibers and low melting polyester fibers as the lower layer. Disclosed is a method for producing a composite laminated polyester sound absorbing material having a structure.
Description
본 발명은 회의실, 호텔, 음악연주실 등과 같은 일반 건물이나, 자동차 또는 도로 방음벽 등에 이용되는 고밀도 폴리에스터 흡음재 제조방법에 관한 것으로, 특히 의류 및 산업용으로 널리 사용되고 있는 폴리에스터 섬유를 이용하여 흡음성능이 우수하고, 시공시 보호장구가 필요없으며, 운송 및 시공이 간단하여 설치비용이 저렴하며, 재활용이 가능한 등의 이점을 지닌 새로운 구조의 고밀도 폴리에스터 흡음재에 관한 것이다.The present invention relates to a method for producing a high-density polyester sound-absorbing material used in general buildings such as conference rooms, hotels, music rooms, etc., automobiles or road soundproof walls, and particularly, by using polyester fibers widely used in clothing and industrial applications. The present invention relates to a high-density polyester sound-absorbing material of a new structure having advantages such as excellent, no protective equipment for construction, simple transportation and construction, low installation cost, and recyclability.
산업이 고도로 발달해 감에 따라 각종 교통수단과 산업기계의 사용은 인간에게 불필요한 소음을 발생시킴으로서 소음으로 인한 피해의 정도도 점차 증가되고 있는 실정이다. 이러한 소음문제의 해결을 위하여 다양한 방법의 소음방지 대책이 대두 되었고, 현재 주변에도 도로 방음막과 같은 여러 소음방지 시설을 볼수가 있다. 그러나, 소음방지를 위해 사용되고 있는 각종 방소음 재료의 경우 대부분이 소음공해의 방지에만 치중하여 이들에 의해 풍화문제, 대기오염 또는 수질오염과 같은 환경적인 오염을 야기시켜 또다른 사회 문제가 되고 있는 실정이다. 특히 입방미터당의 흡음재 무게가 150∼400㎏ 범위인 무기계 고밀도 흡음재의 경우 암면이나 유리섬유등 무기섬유의 소재적인 특성상 섬유사이의 결합 방법이 극히 제한적이어서 현재까지도 소재와는 별개의 성분인 유기계 바인더 수지를 사용하는 경우가 대부분이다.As the industry is highly developed, the use of various means of transportation and industrial machinery generates unnecessary noise to humans, and the degree of damage caused by noise is gradually increasing. In order to solve this noise problem, various measures to prevent noise have emerged, and various noise prevention facilities such as road sound barriers can be seen around the present. However, in the case of various kinds of anti-noise materials used for noise prevention, most of them are focused on preventing noise pollution, which causes environmental pollution such as weathering, air pollution, or water pollution, which is another social problem. to be. In particular, in the case of inorganic high-density sound-absorbing materials having a weight range of 150 to 400 kg per cubic meter, the organic binder resin, which is a component separate from the material, is still very limited due to the extremely limited bonding method between the fibers due to the material properties of the inorganic fibers such as rock wool or glass fiber. In most cases you will use.
그러나, 이러한 무기계 고밀도 흡음재를 제조할 경우에 유기계 바인더 부여시 스프레이 방식을 대부분 사용하므로 작업자의 호흡기 계통의 질병을 유발할 수 있으며, 작업시 유실된 수지로 인해 주변의 토양 및 수질의 오염 가능성이 있다. 또 완제품의 고밀도 흡음재의 경우에도 유리섬유 및 암면을 소재로한 무기계 고밀도 흡음재의 경우는 유리섬유가 대기 노출시 풍화작용에 의한 미립자의 발생으로 대기 오염을 일으킬 수 있으며, 폐기 처리시 재사용 및 소각처리가 어려운 단점을 가지고 있으며, 섬유간의 결합력이 바인더의 접착력에만 의존하여 섬유소 자체의 인장강도 부족으로 운반 및 취급시 파손 우려가 있고, 시공시 작업자의 땀 또는 습기에 미립자가 피부에 접촉하여 가려움이나 알레르기와 같은 현상이 유발될 우려로 인해 보호장구가 필요한 등의 문제점을 지니고 있다.However, when the inorganic high-density sound absorbing material is manufactured, most of the spray method is used when applying the organic binder, which may cause a disease of the respiratory system of the worker, and there is a possibility of contamination of the surrounding soil and water due to the resin lost during the work. In the case of the high density sound absorbing material of the finished product, the inorganic high density sound absorbing material made of glass fiber and rock wool may cause air pollution due to the generation of fine particles by weathering when the glass is exposed to the air. Has the disadvantage of being difficult, the binding force between fibers depends only on the adhesive strength of the binder, there is a risk of breakage during transportation and handling due to the lack of tensile strength of the fiber itself, and during the construction of the sweat or moisture of the worker to contact the skin itching or allergy Due to the concern that such a phenomenon may occur, there is a problem such as the need for protective equipment.
따라서 이러한 문제점을 해결하기 위한 새로운 방법들이 제안되어 있는데, 예를 들어 미국특허 5,304,415호에서는 폴리에스터 부직포에 입자직경 25㎛의 칼슘실리케이트(calciumsilicate), 실리카 및 마이카(mica)등의 다공성 입자를 내부에 부착시킨 저주파 영역의 흡음성이 우수한 흡음재를 제안하였으나, 이 흡음재는 음파가 통과하는 기공부위에 다공성입자가 위치하여야 흡음성능을 증가 시킬 수 있는 문제점이 있으며, 또한 입자가 고정성이 없어 이탈되기 쉬우므로 일정기간이 경과되면 흡음성능이 저하되는 단점이 있다. 또한 미국특허 4,056,161호에서는 기존의 유리면 재질의 흡음재 한쪽면에 시공시 취급 용이성과 우천시의 수분에 의한 흡음재의 쳐짐을 방지할 목적으로 폴리염화비닐코팅등을 형성시킨 흡음재를 제안하였으나, 이 경우에도 방음벽 설치후 날림소리로 인한 또다른 소음원이 될뿐 아니라 제조 가격 상승의 문제점이 있다.Therefore, new methods have been proposed to solve this problem. For example, US Pat. No. 5,304,415 discloses porous particles of calcium silicate, silica and mica having a particle diameter of 25 μm in a polyester nonwoven fabric. A sound absorbing material having excellent sound absorbing property in the low frequency region attached is proposed, but this sound absorbing material has a problem of increasing the sound absorbing performance when the porous particles are located in the pore area through which sound waves pass, and also because the particles are not fixed, they are easily separated. After a certain period of time there is a disadvantage that the sound absorption performance is lowered. In addition, U.S. Patent No. 4,056,161 proposes a sound absorbing material in which a polyvinyl chloride coating is formed for the purpose of preventing the sagging of the sound absorbing material due to the ease of handling during construction and moisture in rainy weather on one side of the existing sound absorbing material made of glass. Not only is it another noise source due to flying sound after installation, but there is a problem of rising manufacturing prices.
본 발명은 상기와 같은 제반 문제점들을 해결하기 위해 안출된 것으로서, 특히 흡음성능이 우수함은 물론 시공시 보호장비가 필요없으며 운송 및 시공이 간단하여 설치비용이 저렴하고 재활용이 가능한 등의 장점을 지닌 흡음재를 제공하는데 그 목적이 있는 것이다.The present invention has been made to solve the above problems, in particular, the sound absorbing material has the advantages of excellent sound absorption performance, as well as the need for protective equipment during construction and simple transportation and construction, low installation cost and recyclable The purpose is to provide.
도 1은 본 발명에 따른 폴리에스터 흡음재의 복합 적층 구조를 나타내는 일 예시도이다.1 is an exemplary view showing a composite laminated structure of a polyester sound absorbing material according to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1 : 일방향성 섬유웹 2 : 3방향성 섬유웹1: unidirectional fiber web 2: 3 directional fiber web
3 : 일방향성 섬유웹3: unidirectional fiber web
본 발명은 융점이 260∼270℃ 범위에 있는 고융점 폴리에스터 섬유를 주재료로 하고 융점이 110℃ 이하인 저융점 폴리에스터 섬유를 섬유간 고정제로하여 제조된 3∼5종의 섬유웹을 복합적층시켜 폴리에스터 흡음재를 제조함에 있어서, 표면층(1)에는 저융점 폴리에스터 섬유가 70∼90중량% 함유되고 방향성 카딩에 의해 형성된 일방향성 섬유웹을 적층시키고, 내부층(2)에는 저융점 폴리에스터 섬유가 40∼60중량% 함유되고 랜덤카딩에 의해 형성된 3차원 구조의 섬유웹 1종 내지 3종을 적층시키며, 최하층(3)에는 저융점 폴리에스터 섬유가 40∼60중량% 함유되고 방향성 카딩에 의해 형성된 일방향성 섬유웹을 적층시키는 것을 특징으로 한 복합 적층 폴리에스터 흡음재 제조법에 관한 것이다.The present invention is a composite material of three to five kinds of fibrous webs prepared by using a high melting point polyester fiber having a melting point of 260 to 270 ° C. as a main material and a low melting point polyester fiber having a melting point of 110 ° C. or lower as an interfiber fixing agent. In producing the polyester sound-absorbing material, the surface layer 1 is laminated with a unidirectional fibrous web containing 70 to 90% by weight of low-melting polyester fiber and formed by directional carding, and the inner layer 2 is a low-melting polyester fiber. 1 to 3 kinds of three-dimensional fibrous webs containing 40 to 60% by weight and formed by random carding, and the lowermost layer 3 contains 40 to 60% by weight of low melting point polyester fiber and is formed by aromatic carding. It relates to a composite laminated polyester sound-absorbing material manufacturing method characterized by laminating the formed unidirectional fibrous web.
이하에서 첨부된 도면에 의거 본 발명을 구체적으로 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
폴리에스터 섬유는 주쇄에 에스테르 결합(-coo-)을 지닌 폴리머를 합성, 방사, 연신 및 기타 후처리 공정을 거쳐 제조하며, 사용되는 주원료에 따라 열적, 기계적 물성이 변화한다. 일반적으로 사용되는 고융점 폴리에스터 섬유(대략 융점이 260∼270℃범위)는 주원료로 테레프탈산(TPA) 또는 디메틸테레프탈레이트(DMT)를 산성분으로 사용하여 에틸렌글리콜(EG)과 에스테르화 반응 및 중축합 반응을 거쳐 얻어지는 폴리머를 사용해 제조하며, 또한 융점이 대략 110℃이하인 저융점 폴리에스터 섬유는 이소프탈산 또는 프탈산을 산성분으로 사용하여 얻어진 폴리머를 사용해 제조하는데, 고융점 폴리에스터 섬유는 결정성이 우수한 반면 저융점 폴리에스터는 결정성이 없거나 불량한 특성을 나타낸다.Polyester fibers are produced by synthesis, spinning, stretching, and other post-treatment processes of polymers having ester bonds (-coo-) in the main chain, and thermal and mechanical properties change depending on the main raw materials used. Generally used high melting point polyester fiber (approximately melting point range from 260 to 270 ℃) is esterified with polyethylene terephthalate (TPA) or dimethyl terephthalate (DMT) as acid component and ethylene glycol (EG) reaction and polycondensation The low melting polyester fiber having a melting point of about 110 ° C. or lower is produced using a polymer obtained by using isophthalic acid or phthalic acid as an acid component, and the high melting polyester fiber is crystalline. On the other hand, low melting polyesters exhibit crystalline or poor properties.
본 발명에서는 상기 고융점 폴리에스터 섬유를 주재료로 하고 저융점 폴리에스터 섬유를 섬유간 고정제로 하여 흡음재를 제조하는데, 이때 사용되는 고융점 폴리에스터 섬유는 인장강도가 대략 3∼5kg/de 수준의 것이 바람직하다.In the present invention, the high melting point polyester fiber as the main material and the low melting point polyester fiber as the interfiber fixing agent to manufacture a sound absorbing material, wherein the high melting point polyester fiber used is a tensile strength of about 3 ~ 5kg / de desirable.
도 1은 본 발명에 따른 폴리에스터 흡음재의 복합적층구조의 일례를 나타낸 것으로서, 즉 표면층(1)에는 저융점 폴리에스터 섬유가 70∼90중량% 함유되고 방향성 카딩에 의해 형성된 일방향성 섬유웹을 적층시키고, 내부층(2)으로는 저융점 폴리에스터 섬유가 40∼60중량% 함유되고 랜덤 카딩에 의해 형성된 3차원 구조의 섬유웹을 적층시키며, 최하층(3)에는 저융점 폴리에스터 섬유가 40∼60중량% 함유되고 방향성 카딩에 의해 형성된 일 방향성 섬유웹을 적층시켜 제조된 복합 적층 폴리에스터 흡음재(1)를 도시한 것으로서, 이때 내부층(2)에 사용되는 고융점 폴리에스터 섬유는 그 섬도가 표면층(1)이나 최하층(3)에 사용되는 고융점 폴리에스터 섬유의 섬도에 비해 70%이하인 섬유를 사용하는 것이 바람직하다.Figure 1 shows an example of a composite laminated structure of the polyester sound-absorbing material according to the present invention, that is, the surface layer 1 is laminated with a unidirectional fibrous web containing 70 to 90% by weight of low-melting polyester fibers and formed by directional carding The inner layer 2 contains 40 to 60 wt% of low melting polyester fibers, and a fibrous web of three-dimensional structure formed by random carding is laminated, and the lower layer 3 contains 40 to 40 low melting polyester fibers. The composite laminated polyester sound-absorbing material 1 is prepared by laminating a unidirectional fibrous web containing 60% by weight and formed by directional carding, wherein the high-melting polyester fiber used for the inner layer 2 has fineness. It is preferable to use a fiber which is 70% or less than the fineness of the high melting point polyester fiber used for the surface layer 1 or the lowest layer 3.
이하에서 실시예를 들어 본 발명을 좀 더 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail with reference to Examples.
[실시예 1]Example 1
표면층(상층)은 융점이 265℃이고 섬도가 15de인 고융점 폴리에스터 섬유를 20중량부, 섬유간 결합력을 부여하는 융점이 105℃이고 섬도가 15de인 저융점 폴리에스터 섬유를 80중량부 사용하여 방향성 카딩에 의해 제조한 일방향성 섬유웹을 적층시키고, 내부층(중층)에는 융점이 265℃이고 섬도가 7de인 고융점 폴리에스터 섬유를 50중량부, 융점이 105℃이고 섬도가 12de인 저융점 폴리에스터 섬유를 50중량부 사용하여 랜덤 카딩에 의해 제조한 3차원 섬유웹을 적층시키고, 하층에는 융점이 105℃이고 섬도가 12de인 고융점 폴리에스터 섬유 50중량부, 융점이 105℃이고 섬도가 12de인 저융점 폴리에스터 섬유 50중량부 사용하여 방향성 카딩에 의해 제조한 일 방향성 섬유웹을 적층시켜 밀도가 50㎏/㎥이고 50㎜두께의 폴리에스터흡음재를 제조하였다.The surface layer (upper layer) is 20 parts by weight of a high melting point polyester fiber having a melting point of 265 ° C. and 15 deg., And 80 parts by weight of a low melting point polyester fiber having a melting point of 105 ° C. and 15 deg. The unidirectional fibrous web prepared by directional carding was laminated, and the inner layer (middle layer) had 50 parts by weight of a high melting point polyester fiber having a melting point of 265 ° C. and a fineness of 7de, a melting point of 105 ° C., and a low melting point of 12de. 50 parts by weight of polyester fibers were laminated to a three-dimensional fiber web prepared by random carding. In the lower layer, 50 parts by weight of a high melting point polyester fiber having a melting point of 105 ° C. and a fineness of 12de, a melting point of 105 ° C., and a fineness of One-directional fibrous webs prepared by directional carding were laminated using 50 parts by weight of low melting point polyester fibers of 12 deg to prepare a polyester sound absorbing material having a density of 50 kg / m 3 and a thickness of 50 mm.
[비교실시예 1]Comparative Example 1
표면층을 융점이 105℃이고 섬도가 15de인 저융점 폴리에스터 100중량부만을 사용해 일방향성 카딩에 의해 제조한 일방향성 섬유웹을 적층시킨 것을 제외하고는 실시예 1과 동일하게 하여 복합적층 폴리에스터 흡음재를 제조하였다.The composite layer polyester sound-absorbing material was prepared in the same manner as in Example 1 except that the surface layer was laminated with a unidirectional fibrous web prepared by unidirectional carding using only 100 parts by weight of a low melting polyester having a melting point of 105 ° C. and a fineness of 15 de. Was prepared.
[비교실시예 2]Comparative Example 2
융점이 265℃이고 섬도가 15de인 고융점 폴리에스터 섬유 50중량부, 융점이 105℃이고 섬도가 15de인 저융점 폴리에스터 섬유 50중량부를 사용해 방향성 카딩에 의해 얻어진 밀도가 50㎏/㎥이고 두께가 50㎜인 단일의 일방향성 섬유웹을 사용해 폴리에스터 흡음재를 제조하였다.50 parts by weight of a high melting polyester fiber having a melting point of 265 ° C. and 15 degrees of fineness, and 50 parts by weight of a low melting point polyester fiber having a melting point of 105 ° C. and a degree of fineness of 15 deg. Polyester sound absorbing materials were prepared using a single unidirectional fibrous web of 50 mm.
[비교실시예 3]Comparative Example 3
융점이 265℃이고 섬도가 7de인 고융점 폴리에스터 섬유 50중량부, 융점이 105℃이고 섬도가 7de인 저융점 폴리에스터 섬유 50중량부를 사용해 방향성 카딩에 의해 얻어진 밀도가 50㎏/㎥ 이고 두께가 50mm인 단일의 일방향성 섬유웹을 사용해 폴리에스터 흡음재를 제조하였다.50 parts by weight of high melting polyester fibers having a melting point of 265 DEG C and a fineness of 7de, and 50 parts by weight of low melting polyester fibers having a melting point of 105 DEG C and a degree of 7de, are 50 kg / m3 and obtained by directional carding. A polyester sound absorbing material was prepared using a single unidirectional fibrous web of 50 mm.
상기 실시예 및 비교실시예들에서 제조된 폴리에스터 흡음재 특성치 및 물성을 측정하여 하기 표 1에 나타내었으며, 이때 흡음률은 KSF 2805법(잔향실내의 흡음률 측정방법)에 따라 하기식에 의해 산출하였다.The properties and physical properties of the polyester sound absorbing material prepared in Examples and Comparative Examples are shown in Table 1 below, and the sound absorption rate was calculated by the following equation according to the KSF 2805 method (absorption rate measurement method in the reverberation chamber).
α= (55.3V/cS) × (1/T1-1/T2)α = (55.3V / cS) × (1 / T 1 -1 / T 2 )
α : 흡음률 , V : 잔향실 용적(㎥)α: sound absorption rate, V: reverberation chamber volume (㎥)
T1: 시료를 넣은 상태에서의 잔향시간(S)T 1 : Reverberation time (S) with sample
T2: 시료를 넣지 않은 상태에서의 잔향시간(S)T 2 : Reverberation time (S) without sample
S :시료면적(㎡) , C : 공기중의 음속(m/s) : 331.5+0.6tS: Sample area (㎡), C: Sound velocity in air (m / s): 331.5 + 0.6t
t : 공기의 온도(℃)t: temperature of air (° C.)
상기 실시예 및 비교실시예에서도 확인되듯이 본 발명에 따라 제조된 흡음재는 흡음률이 우수할뿐만 아니라, 섬유 고정제로 주재료와 동종의 폴리에스터계 섬유를 사용하여 자체결합 방식을 채용하기 때문에 제조가 용이하고, 또한 시공 및 운반이 간단하고 시공시 보호장비가 필요없으므로 설치비용이 저렴하며, 재활용이 가능한 등의 여러가지 유용성을 지닌다.As can be seen from the above examples and comparative examples, the sound absorbing material manufactured according to the present invention is not only excellent in sound absorption, but also easy to manufacture because it adopts a self-bonding method using the same type of polyester fiber as the main material as the fiber fixative. In addition, since the construction and transportation is simple, and no protective equipment is required for construction, the installation cost is low, and the recycling is possible.
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| KR960037907A (en) * | 1995-04-04 | 1996-11-19 | 양지현 | Nonwoven Fabric for Cushion Interior Material and Manufacturing Method Thereof |
| JPH1018153A (en) * | 1996-07-08 | 1998-01-20 | Toa Boshoku Kk | Fiber substrate for interior material including for vehicle |
| KR19980068604U (en) * | 1998-07-31 | 1998-12-05 | 금병찬 | Interior laminate |
| JP2000062069A (en) * | 1998-08-24 | 2000-02-29 | Takashimaya Nippatsu Kogyo Co Ltd | Surface material for vehicular sheet |
| KR200203758Y1 (en) * | 1999-04-12 | 2000-11-15 | 금병찬 | Laminated liner |
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| KR960037907A (en) * | 1995-04-04 | 1996-11-19 | 양지현 | Nonwoven Fabric for Cushion Interior Material and Manufacturing Method Thereof |
| JPH1018153A (en) * | 1996-07-08 | 1998-01-20 | Toa Boshoku Kk | Fiber substrate for interior material including for vehicle |
| KR19980068604U (en) * | 1998-07-31 | 1998-12-05 | 금병찬 | Interior laminate |
| JP2000062069A (en) * | 1998-08-24 | 2000-02-29 | Takashimaya Nippatsu Kogyo Co Ltd | Surface material for vehicular sheet |
| KR200203758Y1 (en) * | 1999-04-12 | 2000-11-15 | 금병찬 | Laminated liner |
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