KR101266065B1 - artificial leather - Google Patents
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- KR101266065B1 KR101266065B1 KR1020070124970A KR20070124970A KR101266065B1 KR 101266065 B1 KR101266065 B1 KR 101266065B1 KR 1020070124970 A KR1020070124970 A KR 1020070124970A KR 20070124970 A KR20070124970 A KR 20070124970A KR 101266065 B1 KR101266065 B1 KR 101266065B1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic System
- D06M11/42—Oxides or hydroxides of copper, silver or gold
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/49—Oxides or hydroxides of elements of Groups 8, 9, 10 or 18 of the Periodic System; Ferrates; Cobaltates; Nickelates; Ruthenates; Osmates; Rhodates; Iridates; Palladates; Platinates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/04—Properties of the materials having electrical or magnetic properties
- D06N2209/048—Electromagnetic interference shielding
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/26—Vehicles, transportation
- D06N2211/263—Cars
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
본 발명은 인공피혁에 관한 것으로서, 상기 인공피혁은 단사섬도가 0.001~0.3데니어인 극세섬유들이 서로 교락된 부직포 내에 고분자 탄성체가 함침되어 있으며 표면에는 상기 극세섬유들이 입모(立毛)되어 모우를 형성하는 구조를 갖고, 상기 극세섬유 및 고분자 탄성체 중에서 선택된 1종 이상에 전자파차폐제가 함유되어 있는 것을 특징으로 한다.The present invention relates to artificial leather, wherein the artificial leather is impregnated with a polymer elastomer in a nonwoven fabric in which microfibers having a single yarn fineness of 0.001 to 0.3 denier are intertwined with each other, and the microfibers are formed on the surface to form wool. It has a structure, characterized in that the electromagnetic shielding agent is contained in at least one selected from the ultrafine fibers and the polymer elastomer.
본 발명은 차량 내부에서 발생하는 전자파를 효과적으로 차단하여 기계 오작동이나 탑승자의 건강이 손상되는 것을 방지하며, 광대역 전자파도 효과적으로 차단할 수 있고, 전자파차폐 가공으로 인한 촉감 및 외관의 저하도 효과적으로 방지할 수 있다.The present invention effectively blocks the electromagnetic waves generated inside the vehicle to prevent mechanical malfunction or damage to the occupant's health, and can effectively block broadband electromagnetic waves, and can effectively prevent the touch and appearance deterioration due to the electromagnetic shielding process. .
인공피혁, 차량, 자동차, 전자파차폐, 전도성, 마모강도, 촉감, 페라이트. Artificial leather, vehicle, automobile, electromagnetic shielding, conductivity, wear strength, touch, ferrite.
Description
본 발명은 인공피혁에 관한 것으로서, 보다 구체적으로는 차량 내부에서 발생하는 전자파를 효과적으로 차단하여 기계 오작동이나 탑승자의 건강이 손상되는 것을 방지하며, 광대역 전자파도 효과적으로 차단할 수 있고, 전자파차폐 가공으로 인한 촉감 및 외관의 저하도 효과적으로 방지할 수 있는 인공피혁 및 그의 제조방법에 관한 것이다.The present invention relates to artificial leather, and more specifically, to effectively block electromagnetic waves generated inside the vehicle to prevent mechanical malfunction or damage to the occupant's health, to effectively block broadband electromagnetic waves, and to touch due to electromagnetic shielding processing. And it relates to an artificial leather and its manufacturing method that can effectively prevent the appearance of deterioration.
극세사들이 3차원적으로 교락되어 있는 부직포와 상기 부직포내에 함침된 고분자 탄성체로 이루어진 인공피혁은 촉감, 라이트 이펙트, 드레이프성 등이 우수하고 천연피혁과 유사한 부드러운 질감과 독특한 외관을 갖고있어서 자동차, 비행기, 기차, 선박 등의 운송수단(이하 "차량"이라고 약칭한다)의 시트(Seat) 표피재나 인테리어 소재 등으로 널리 사용되고 있다.Artificial leather is composed of a nonwoven fabric in which microfibers are intertwined three-dimensionally and a polymer elastomer impregnated in the nonwoven fabric. The artificial leather has excellent feel, light effect and drape, and has a soft texture and unique appearance similar to that of natural leather. BACKGROUND ART It is widely used as a sheet skin material or interior material of a vehicle (hereinafter, referred to as "vehicle") for transportation such as trains and ships.
인공피혁은 통상적으로 해도형 복합섬유로 부직포를 제조한 후 상기 부직포에 고분자 탄성체를 함침하고, 이를 알칼리 수용액으로 처리하여 해도형 복합섬유 를 극세화 시키고, 계속해서 버핑 및 염색하는 공정으로 제조된다.Artificial leather is usually manufactured by manufacturing a nonwoven fabric with island-in-the-sea composite fiber, impregnating a polymer elastic body in the nonwoven fabric, and treating it with an aqueous alkali solution to minimize the island-in-the-sea composite fiber, followed by buffing and dyeing.
차량용 소재로 사용되는 인공피혁(이하"차량용 인공피혁"이라 약칭한다)은 마찰 및 외력에 대한 내구성 및 형태안정성이 요구됨과 동시에 굴곡이 많은 부위에 사용되는 특성상 봉제 및 장착 작업이 용이하도록 적절한 신율특성이 요구되고 있다. 또한 최근 인공피혁 소재를 고감성 소재로 인식하여 차량용으로의 적용이 날로 증가하는 추세에 있는데, 은은한 라이팅 이펙트와 같은 심미적 요소와 전자파차폐 성능이 매우 중요해지고 있다Artificial leather (abbreviated as "vehicle artificial leather") used as a vehicle material is required for durability and form stability against friction and external force, and is suitable for bending and mounting. This is required. In addition, recently, the artificial leather material is recognized as a highly sensitive material, and the application to the vehicle is increasing day by day, and the aesthetic elements such as the soft lighting effect and the electromagnetic shielding performance are becoming very important.
자동차의 내부에는 편의성을 위해 다양한 전기장치들이 설치됨에 따라 탑승자가 전자파에 노출되기 쉽다.As various electric devices are installed inside the vehicle for convenience, passengers are easily exposed to electromagnetic waves.
향후 전기자동차가 상업화되는 경우에는 탑승자는 더욱더 전자파에 노출되기 쉽다.In the future, when electric vehicles are commercialized, passengers are more likely to be exposed to electromagnetic waves.
전자파는 자동차의 신호 시스템에 노이즈를 발생시켜 기계의 고장이나 오작동을 일으키고, 탑승자에게는 나쁜 영향을 끼쳐 두통, 시력저하, 뇌종양 등의 질병을 유발시키기도 한다.Electromagnetic waves generate noise in the signal systems of automobiles, causing mechanical failures and malfunctions, and adversely affect occupants, causing headaches, decreased vision, and brain tumors.
직물 또는 시트에 전자파차폐 성능을 부여하는 종래기술로서, 대한민국 공개특허 1995-6133호에서는 직물에 금속입자와 도전성 카본을 함유하는 접착제를 코팅하는 방법을 게재하고 있다.As a conventional technique for imparting electromagnetic shielding performance to a fabric or sheet, Korean Patent Laid-Open Publication No. 1995-6133 discloses a method of coating an adhesive containing metal particles and conductive carbon on a fabric.
그러나, 상기 방법은 전자파차폐 성능 개선에 한계가 있고, 접착제 코팅으로 촉감 및 외관이 크게 저하되고, 마모에 의해 접착제가 박리되어 전자파차폐 성능의 내구성이 떨어지는 등의 여러 문제가 있었다.However, the method has a limitation in improving the electromagnetic shielding performance, the touch and appearance is greatly degraded by the adhesive coating, the adhesive is peeled off by abrasion, the durability of the electromagnetic shielding performance is poor.
또 다른 종래기술로서 대한민국 등록특허 제0310335호에서는 제직시 도전성 금속사를 경사 및 위사로 사용하여 직물을 제조하는 방법을 게재하고 있으나, 상기 방법은 원하는 전자파차폐 성능을 발현하기 위해서 많은 량의 도전성 금속사를 사용해야하기 때문에 중량이 무겁고, 가격이 상승하고, 공정이 복잡한 문제 등이 있었다.As another conventional technology, Korean Patent No. 0310335 discloses a method of manufacturing a fabric using a conductive metal yarn as a warp and weft yarn during weaving, but the method has a large amount of conductive metal to express a desired electromagnetic shielding performance. Because of the use of four, the weight was heavy, the price increased, the process was complicated.
본 발명은 차량 내부에서 발생하는 전자파를 효과적으로 차단하여 기계 오작동이나 탑승자의 건강이 손상되는 것을 방지하며, 광대역 전자파도 효과적으로 차단할 수 있고, 전자파차폐 가공으로 인한 촉감 및 외관의 저하도 효과적으로 방지할 수 있는 인공피혁을 제공하고자 한다.The present invention effectively blocks electromagnetic waves generated inside the vehicle to prevent mechanical malfunction or damage to the occupant's health, can effectively block broadband electromagnetic waves, and can effectively prevent the deterioration of touch and appearance due to electromagnetic shielding processing. To provide artificial leather.
이하, 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail.
먼저, 본 발명에 따른 인공피혁은 단사섬도가 0.001~0.3데니어인 극세섬유들이 서로 교락된 부직포 내에 고분자 탄성체가 함침되어 있으며 표면에는 상기 극세섬유들이 입모(立毛)되어 모우를 형성하는 구조를 갖고, 상기 극세섬유 및 고분자 탄성체 중에서 선택된 1종 이상에 전자파차폐제가 함유되어 있는 것을 특징으로 한다.First, the artificial leather according to the present invention has a structure in which a polymer elastic body is impregnated in a nonwoven fabric in which microfibers having a single yarn fineness of 0.001 to 0.3 denier are entangled with each other, and the microfibers are formed on the surface to form wool. Characterized in that the electromagnetic shielding agent is contained in at least one selected from the ultrafine fibers and the polymer elastomer.
상기 전자파차폐제는 도전성 분말 또는 전도성 고분자이며, 전자파차폐제의 함량은 차량용 인공피혁 전체중량 대비 0.1~5.0중량% 함유되는 것이 바람직하다.The electromagnetic shielding agent is a conductive powder or a conductive polymer, the content of the electromagnetic shielding agent is preferably contained 0.1 to 5.0% by weight relative to the total weight of the artificial leather for vehicles.
전자파차폐제의 함량이 0.1중량% 미만인 경우에는 전자파차폐 성능이 저하되고, 5.0중량%를 초과하는 경우에는 원사 방사성 또는 촉감 등이 저하될 수 있다.When the content of the electromagnetic shielding agent is less than 0.1% by weight, the electromagnetic shielding performance is lowered, and when it exceeds 5.0% by weight, yarn radioactivity or touch may be lowered.
상기 도전성 분말의 일례로는 직경이 10~500㎚인 페라이트계 분말, 은 분말, 동 분말, 니켈 분말 또는 이들의 혼합물 등이 사용된다.As an example of the said electroconductive powder, the ferrite type powder of 10-500 nm in diameter, silver powder, copper powder, nickel powder, a mixture thereof, etc. are used.
상기 전도성 고분자로는 폴리피롤, 폴리티오펜, 폴리아닐린, 탄소나노튜브,탄소나노튜브 복합체 필러 또는 이들의 혼합물 등이 사용된다.As the conductive polymer, polypyrrole, polythiophene, polyaniline, carbon nanotube, carbon nanotube composite filler, or a mixture thereof is used.
상기 극세섬유는 폴리아미드 섬유 또는 폴리에스테르 섬유 등이나, 본 발명에서는 극세섬유의 종류를 특별하게 한정하는 것은 아니다.The ultrafine fibers are polyamide fibers, polyester fibers, and the like, but the present invention does not specifically limit the kind of ultrafine fibers.
상기 극세섬유의 단사섬도는 0.001~0.3데니어 이다.Single yarn fineness of the ultrafine fibers is 0.001 ~ 0.3 denier.
단사섬도가 0.001데니어 미만인 경우에는 인공피혁의 강도가 저하되며, 0.3데니어를 초과하면 인공피혁의 촉감 및 라이팅 이펙트가 저하된다.If the single yarn fineness is less than 0.001 denier, the strength of the artificial leather is lowered. If the single yarn fineness is more than 0.3 denier, the touch and lighting effect of the artificial leather is lowered.
다음으로는, 본 발명에 따른 상기 인공피혁을 제조하는 방법 일례를 구체적으로 살펴본다.Next, look at one example of a method for producing the artificial leather according to the present invention in detail.
먼저, 본 발명에서는 알칼리 이용해성 공중합 폴리에스테르인 해성분과 상기 해성분 내에 분산되어 단사섬도가 0.001~0.3데니어인 도성분 들로 이루어진 해도형 복합섬유를 단섬유화한 후 이를 오프닝, 카팅, 크로스랩핑 및 니들펀칭하여 부직포를 제조한다.First, in the present invention, the island-in-the-sea composite fiber composed of sea component which is an alkali-soluble copolyester and island components having a single yarn fineness of 0.001 to 0.3 denier is dispersed in the sea component, and then opened, carded, cross-wrapped and Needle punching produces a nonwoven fabric.
상기 도성분 내에 앞에서 설명한 전자파차폐제가 첨가될 수도 있다.The above-described electromagnetic shielding agent may be added to the island component.
즉 후술하는 고분자 탄성체 내에 전자파차폐제가 첨가되지 않을 경우에는 필 수적으로 도성분 내에 전자파차폐제가 첨가되며, 고분자 탄성체내에 전자파차폐제가 첨가되는 경우에는 도성분 내에 전자파차폐제가 첨가될 수도 있고 안될 수도 있다.That is, when the electromagnetic shielding agent is not added to the polymer elastomer to be described later, the electromagnetic shielding agent is necessarily added to the island component. When the electromagnetic shielding agent is added to the polymer elastomer, the electromagnetic shielding agent may or may not be added to the conductive component.
다음으로는, 상기 부직포에 고분자 탄성체 용액을 함침한 후 이를 알칼리 수용액으로 처리하여 상기 해성분을 용출하여 단사섬도가 0.001~0.3데니어인 극세섬유들이 서로 교락된 부직포 내에 고분자 탄성체가 함침되어 있는 복합시트를 제조한다.Next, the composite sheet is impregnated with a polymer elastomer solution in the nonwoven fabric and then treated with an aqueous alkali solution to elute the sea component to impregnate the polymer elastomer in a nonwoven fabric in which microfibers having a single yarn fineness of 0.001 to 0.3 denier are intertwined with each other. To prepare.
상기 고분자 용액 내에 앞에서 설명한 전자파차폐제가 첨가될 수 있다.The above-described electromagnetic shielding agent may be added to the polymer solution.
즉 상기 도성분 내에 전자파차폐제가 첨가된 경우에는 고분자 탄성체 용액 내에 전자파차폐제가 첨가될 수도 있다.That is, when the electromagnetic shielding agent is added to the island component, the electromagnetic shielding agent may be added to the polymer elastomer solution.
그러나 상기 도성분 내에 전자파차폐제가 첨가안된 경우에는 고분자 탄성체 용액 내에 전자파차폐제가 필수적으로 첨가된다.However, when the electromagnetic shielding agent is not added to the island component, the electromagnetic shielding agent is essentially added to the polymer elastomer solution.
한편, 본 발명에서는 상기와 같이 제조된 부직포를 알칼리 수용액으로 먼저 처리하여 해성분을 용출한 다음, 여기에 고분자 탄성체를 함침할 수도 있다.Meanwhile, in the present invention, the nonwoven fabric prepared as described above may be first treated with an aqueous alkali solution to elute the sea component, and then impregnated with the polymer elastomer.
상기 해성분인 알칼리 이용해성 공중합 폴리에스테르는 폴리에틸렌테레프탈레이트를 주성분으로 하고, 부가성분으로 분자량 400~20000, 가장 좋기로는 1000~4000의 폴리에틸렌글리콜, 폴리프로필렌글리콜, 1,4-사이클로헥산디카르복실산, 1,4-사이클로헥산디메탄올, 1,4-사이클로헥산디카르복실레이트, 2,2-디메틸-1,3-프로판디올, 2,2-디메틸-1,4-부탄디올, 2,2,4-트리메틸1,3-프로판디올, 아디프산 중 선택된 하나 또는 둘 이상을 25중량%이하 공중합시킨 공중합폴리에스테르 등 이다.Alkali-soluble copolyester as the sea component has polyethylene terephthalate as a main component, and is an additional component with a molecular weight of 400 to 20000, most preferably 1000 to 4000 polyethylene glycol, polypropylene glycol, 1,4-cyclohexanedicar Acids, 1,4-cyclohexanedimethanol, 1,4-cyclohexanedicarboxylate, 2,2-dimethyl-1,3-propanediol, 2,2-dimethyl-1,4-butanediol, 2, 2,4-trimethyl 1,3-propanediol and copolyester obtained by copolymerizing 25% by weight or less of one or two or more selected from adipic acid.
상기 고분자 탄성체로는 폴리우레탄수지, 폴리우레아수지, 폴리아크릴산수지 등을 사용할 수 있지만, 가공정, 내마모성, 내가수분해성 등의 점에서 폴리우레탄수지가 바람직하다.Polyurethane resins, polyurea resins, polyacrylic acid resins, and the like may be used as the polymer elastomer, but polyurethane resins are preferable in terms of processed tablets, abrasion resistance, and hydrolysis resistance.
고분자 탄성체/극세섬유로 구성된 섬유기재의 중량비율이 10/90~70/30이 바람직하다.The weight ratio of the fibrous base composed of the polymer elastomer / fine fiber is preferably 10/90 to 70/30.
고분자 탄성체의 중량 비율이 10중량% 미만인 경우에는 쿠션성이 너무 낮아지고 70중량%를 초과하는 경우에는 촉감 및 라이트 이펙트가 너무 낮아진다.When the weight ratio of the polymer elastomer is less than 10% by weight, the cushioning property is too low, and when it exceeds 70% by weight, the feel and light effect are too low.
고분자 탄성체를 충전처리하는 방법은 부직포에 고분자 탄성체의 유기용제 용액 또는 수성 분산액을 함침 및/또는 도포한 후 습식응고, 또는 건식응고법에 의해 부착시킬 수 있다.The method of filling the polymer elastomer may be applied by wet coagulation or dry coagulation after impregnating and / or applying the organic solvent solution or the aqueous dispersion of the polymer elastomer to the nonwoven fabric.
고분자 탄성체의 유기용제로서는 디메틸포름아미드, 디메틸아세트아미드, 디메틸술폭시드 등의 극성용매 외 톨루엔, 아세톤, 메틸에틸케톤 등을 사용할 수 있다.As an organic solvent of a high molecular elastic body, toluene, acetone, methyl ethyl ketone, etc. other than polar solvents, such as dimethylformamide, dimethylacetamide, and dimethyl sulfoxide, can be used.
다음으로, 상기와 같이 제조되어 극세섬유 부직포 내에 고분자 탄성체가 함침되어 있는 복합시트를 버핑 및 염색하여 표면에 모우가 형성된 인공피혁을 제조한다.Next, the artificial leather is prepared as described above to buff and dye the composite sheet impregnated with the polymer elastic body in the microfiber nonwoven fabric to form artificial leather with the wool formed on the surface.
이상에서 설명한 본 발명의 인공피혁은 차량 내부에서 발생하는 전자파를 효과적으로 차단하여 기계 오작동이나 탑승자의 건강이 손상되는 것을 방지하며, 광대역 전자파도 효과적으로 차단할 수 있고, 전자파차폐 가공으로 인한 촉감 및 외 관의 저하도 효과적으로 방지할 수 있다.Artificial leather of the present invention described above effectively blocks the electromagnetic waves generated inside the vehicle to prevent mechanical malfunction or damage to the occupant's health, and can effectively block the broadband electromagnetic waves, the touch and appearance of the electromagnetic shielding processing The fall can also be effectively prevented.
이하 실시예 및 비교실시예를 통하여 본 발명을 보다 구체적으로 살펴본다.Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples.
그러나 본 발명은 하기 실시예에 의해 권리범위가 한정되는 것은 아니다.However, the present invention is not limited by the following examples.
실시예Example 1 One
알칼리 이용해성 공중합 폴리에스테르의 해성분과 상기 해성분 내에 분산 배열된 폴리에스테르 수지의 도성분 70개로 구성된 해도형 복합섬유(도성분의 단사섬도 : 0.05데니어)를 50㎜의 길이로 절단하여, 단섬유화 하고 카딩 및 크로스 래퍼 공정을 거쳐 상기 해도형 복합 단섬유의 적층웹을 제조한 후, 이를 니들펀칭하여 해도형 복합섬유의 부직포를 제조하였다.The island-in-the-sea composite fiber (single-fiber fineness: 0.05 denier of the island component) composed of the sea component of the alkali-soluble copolyester and 70 island components of the polyester resin dispersed and dispersed in the sea component is cut to a length of 50 mm to form short fibers. After the lamination web of the islands-in-the-sea composite short fibers was manufactured through a carding and cross wrapper process, needle punching was performed to prepare a nonwoven fabric of the island-in-the-sea composite fiber.
다음으로는 제조된 상기 부직포에 폴리우레탄 수지를 부직포 중량대비 40중량%를 함침한 후 습식응고하고, 이를 알칼리 수용액(가성소오다 수용액으로 처리하여 해도형 복합섬유 내 해성분을 용출하여 복합시트를 제조하였다.Next, the prepared nonwoven fabric was impregnated with 40% by weight of polyurethane resin to the nonwoven fabric, and then wet-coagulated, and then dissolved in seawater components in the island-in-the-sea composite fiber by treating with an aqueous alkali solution (caustic soda solution). Prepared.
상기 폴리우레탄 수지 내에는 직경이 100㎚인 페라이트 분말이 인공피혁 전체중량 대비 0.5중량% 첨가하였다.In the polyurethane resin, ferrite powder having a diameter of 100 nm was added 0.5% by weight relative to the total weight of artificial leather.
다음으로는 기모기를 사용하여 상기 복합시트를 버핑 및 염색하여 인공피혁을 제조하였다.Next, the artificial sheet was manufactured by buffing and dyeing the composite sheet using a brush.
제조된 인공피혁의 각종 물성을 평가한 결과는 표 1과 같았다.The results of evaluating various physical properties of the manufactured artificial leather are shown in Table 1.
실시예Example 2 2
도성분 내에 탄소나노튜브를 차량용 인공피혁 전체중량대비 0.2중량% 첨가하는 것을 제외하고는 실시예 1과 동일하게 인공피혁을 제조하였다.Artificial leather was manufactured in the same manner as in Example 1, except that carbon nanotubes were added in an amount of 0.2% by weight based on the total weight of artificial leather for vehicles.
제조된 인공피혁의 각종 물성을 평가한 결과는 표 1과 같다.The results of evaluating various physical properties of the manufactured artificial leather are shown in Table 1.
비교실시예Comparative Example 1 One
폴리우레탄 수지 내에 페라이트 분말을 첨가하지 않는 것을 제외하고는 실시예 1과 동일하게 인공피혁을 제조하였다.Artificial leather was manufactured in the same manner as in Example 1 except that the ferrite powder was not added to the polyurethane resin.
제조된 인공피혁의 각종 물성을 평가한 결과는 표 1과 같다.The results of evaluating various physical properties of the manufactured artificial leather are shown in Table 1.
비교실시예Comparative Example 2 2
차량용 인공피혁의 이면에 구리입자가 0.5중량% 함유된 폴리우레탄 수지 용액을 코팅한 것을 제외하고는 실시예 1과 동일하게 인공피혁을 제조하였다.Artificial leather was manufactured in the same manner as in Example 1, except that the polyurethane resin solution containing 0.5 wt% of copper particles was coated on the back side of the artificial leather for vehicles.
제조된 인공피혁의 각종 물성을 평가한 결과는 표 1과 같다.The results of evaluating various physical properties of the manufactured artificial leather are shown in Table 1.
표 1에서 전자파 차폐효과는 입사전력에 대해 시편을 통과해 수신되는 수신 전력의 비로서 정의된다. 재료를 통과해 수신되는 전력을 P1이라 하고 재료가 없는 상태에서의 수신전력을 P2라 하면 재료의 전자파 차폐효과(dB)는 아래식으로 계산되어질 수 있다.In Table 1, the electromagnetic shielding effect is defined as the ratio of the received power received across the specimen to the incident power. If the power received through the material is P1 and the received power in the absence of the material is P2, the electromagnetic shielding effect (dB) of the material can be calculated by the following equation.
dB = 10 × logP1/P2dB = 10 × logP1 / P2
측정방법은 ASTM(D4935-89) 규격의 플랜지형 동축선 측정치구(flanged circular coaxial transmission line sample holder)를 사용하였다. 이 측정기구는 원역장의 전자파 차폐효과를 측정하는데 사용되며, 측정 신뢰도가 높고 반복적인 실험 결과를 얻을 수 있어 재료의 원역장 차폐 특성을 측정하는 기준 측정기구로 사용할 수 있다. 두개의 큰 동축형 플렌지 사이에 디스크형의 시편을 넣고 전자파를 입사시키면 두 값의 차로부터 시편 재료의 전자파 차폐효과를 구할 수 있다. 이 측정기구를 사용할 때의 측정 주파수 대역은 1MHz ~ 1.8GHz 정도인데 주파수 하한은 측정기기의 주파수 한계에 의해 제한되며, 주파수 상한은 치구의 물리적 크기에 의한 공진 주파수에 의해 제한된다.As a measurement method, a flanged circular coaxial transmission line sample holder of ASTM (D4935-89) standard was used. This measuring instrument is used to measure the electromagnetic wave shielding effect of far field, and it can be used as a reference measuring instrument to measure far field shielding property of material because it can give high reliability and repeatable experimental results. If a disk-shaped specimen is inserted between two large coaxial flanges and the electromagnetic wave is incident, the electromagnetic shielding effect of the specimen material can be obtained from the difference between the two values. When using this measuring instrument, the measuring frequency band is about 1MHz ~ 1.8GHz, the lower frequency limit is limited by the frequency limit of the measuring instrument, and the upper frequency limit is limited by the resonance frequency due to the physical size of the jig.
촉감은 전문가 10명의 관능시험을 거쳐 10명 중 8명 이상이 촉감이 좋다고 평가하면 우수로, 5~7명이 촉감이 좋다고 평가하면 보통으로, 4명 이하가 촉감이 좋다고 평가하면 불량으로 각각 구분하였다.Feeling was classified as excellent if 10 or more of the 10 people rated the skin as good after the sensory test of 10 experts, and 5 to 7 people rated the skin as good. .
본 발명은 차량 내부에서 발생하는 전자파를 효과적으로 차단하여 기계 오작동이나 탑승자의 건강이 손상되는 것을 방지하며, 광대역 전자파도 효과적으로 차단할 수 있고, 전자파차폐 가공으로 인한 촉감 및 외관의 저하도 효과적으로 방지할 수 있다.The present invention effectively blocks the electromagnetic waves generated inside the vehicle to prevent mechanical malfunction or damage to the occupant's health, and can effectively block broadband electromagnetic waves, and can effectively prevent the touch and appearance deterioration due to the electromagnetic shielding process. .
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