KR101221935B1 - Ramie/Polyester Nonwoven Fabrics for Inner Ceiling Materials of Vehicles and Method for Manufacturing the Same - Google Patents
Ramie/Polyester Nonwoven Fabrics for Inner Ceiling Materials of Vehicles and Method for Manufacturing the Same Download PDFInfo
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- KR101221935B1 KR101221935B1 KR1020110038829A KR20110038829A KR101221935B1 KR 101221935 B1 KR101221935 B1 KR 101221935B1 KR 1020110038829 A KR1020110038829 A KR 1020110038829A KR 20110038829 A KR20110038829 A KR 20110038829A KR 101221935 B1 KR101221935 B1 KR 101221935B1
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
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- 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
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G13/00—Mixing, e.g. blending, fibres; Mixing non-fibrous materials with fibres
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/12—Physical properties biodegradable
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
Abstract
본 발명은 일정 섬유장의 모시섬유와 저융점 폴리에스테르 섬유를 이용하여 소면공정, 니들펀칭 공정 및 카렌더링 공정을 통하여 제조된 모시와 저융점 폴리에스테르로 구성된 부직포 자동차 내장재 및 그 제조방법에 관한 것이다. 본 발명의 자동차 내장재용 모시와 저융점폴리에스테르로 구성된 부직포의 제조방법은 모시원사와 저융점 폴리에스테르 섬유의 정전기를 제거하는 제전공정; 상기 모시원사와 저융점 폴리에스테르 섬유를 70:30~60:40의 중량비로 혼합하여 웹을 형성하는 소면공정; 상기 웹을 예비 펀칭 및 메인 펀칭하는 니들펀칭 단계; 및 상기 니들펀칭 된 웹을 카렌더링 처리하는 카렌더링 공정을 포함한다.The present invention relates to a non-woven automotive interior made of ramie and low-melting polyester produced through a carding process, a needle punching process and a calendering process using a ramie fiber and a low-melting polyester fiber of a certain fiber length, and a manufacturing method thereof. Method for producing a nonwoven fabric consisting of a ramie for automobile interior materials and a low-melting point polyester of the present invention is an antistatic process for removing static electricity of the ramie yarn and low-melting point polyester fiber; A carding process of mixing the ramie yarn and the low melting point polyester fiber in a weight ratio of 70:30 to 60:40 to form a web; A needle punching step of pre-punching and main punching the web; And a calendering process of calendering the needle punched web.
Description
본 발명은 모시와 저융점 폴리에스테르(low melting polyester, LMP)를 이용하여 자동차 내장재용 모시와 폴리에스테르로 구성된 부직포 및 그 제조방법에 관한 것으로서, 상세하게는 일정 섬유장의 모시섬유와 저융점 폴리에스테르 섬유를 소면공정, 니들펀칭 공정과 카렌더링 공정을 통하여 제조된 모시와 저융점 폴리에스테르로 구성된 부직포 자동차 내장재와 그 제조방법에 관한 것이다.The present invention relates to a nonwoven fabric composed of ramie and polyester for automobile interior materials and a method of manufacturing the same using ramie and low melting polyester (LMP). The present invention relates to a non-woven automotive interior made of ramie and low-melting polyester produced through a carding process, a needle punching process, and a calendering process, and a manufacturing method thereof.
자동차는 현대사회에서 기본적인 필수품의 하나가 되어 왔는데, 자동차의 기본적인 성능향상 이외에 편의성과 미적성능의 향상을 위한 기술이 개발 되고 있다. 최근에는 생활수준이 향상됨에 따라 소비자들이 원하는 자동차 내장재의 소재에 대한 기대심리도 높아졌다. 기존에는 합성소재로 이루어진 천장재(headliner) 및 대시보드(dashboard)가 주고 사용되고 있다. 하지만, 합성소재로 이루어진 자동차 내장재는 환경문제를 일으키는 원인 중 하나가 되기 때문에, 유럽의 자동차 제조사에서는 자동차 내장재에 친환경소재의 비율을 일정수준 이상으로 구성하고 있다. Automobiles have become one of the basic necessities in the modern society. In addition to improving the basic performance of automobiles, technologies for improving convenience and aesthetic performance are being developed. Recently, as living standards have improved, so have expectations for the materials for automobile interior materials. In the past, ceiling materials (headliner) and dashboard (dashboard) made of synthetic materials are used. However, since automobile interior materials made of synthetic materials become one of the causes of environmental problems, European automakers have made the ratio of environmentally friendly materials to automotive interior materials higher than a certain level.
친환경 소재를 이용한 자동차 내장재에 관한 다양한 기술들이 현재 개발되고 있다.Various technologies related to automobile interior materials using eco-friendly materials are currently being developed.
천연섬유를 이용한 자동차 내장재와 관련된 선행기술로서, 한국공개특허 제2009-0008575호에서는 폴리올레핀계 압출 발포시트로 구성된 심재와 그 상부 및 하부에 천연섬유 및 합성섬유로 구성된 보강재 층을 갖는 자동차 내장용 천정재를 개시하고 있다. As a prior art related to automobile interior materials using natural fibers, Korean Patent Laid-Open Publication No. 2009-0008575 discloses a ceiling material for automobile interiors having a core material composed of polyolefin-based extruded foam sheet and a reinforcement layer composed of natural fibers and synthetic fibers on the upper and lower portions thereof. The ash is starting.
또한 일본공개특허 평5-279985에서는 천연 셀룰로오스섬유소재로 이루어진 부직시트에 대해서 개시하고 있다. In addition, Japanese Patent Laid-Open No. 5-279985 discloses a nonwoven sheet made of natural cellulose fiber material.
본 발명에서는 상기 선행기술와 대비하여 간단한 공정으로 제조할 수 있고, 재활용이 가능하고 경량화된 자동차 내장재용 부직포를 제조하는 방법을 제공한다.The present invention provides a method for manufacturing a non-woven fabric for automobile interior material that can be manufactured in a simple process compared to the prior art, is recyclable and lightweight.
본 발명은 간단한 공정으로 보다 경량화된 모시섬유를 이용한 자동차 내장재용 부직포를 제조하는 방법을 제공하는 것을 목적으로 한다.It is an object of the present invention to provide a method for manufacturing a nonwoven fabric for automobile interior using lighter weight fiber in a simple process.
본 발명은 일정한 섬유장의 모시와 저융점 폴리에스테르 섬유를 혼섬하여 웹을 형성하고, 니들펀칭 공정을 통해 부직포로 제조되고, 카렌더링 공정을 통해 모시섬유와 바인더섬유인 LMP섬유가 접착한 부직포를 제조하는 방법을 제공하는 것을 목적으로 한다. The present invention is to form a web by mixing the fibers of a certain fiber length and low-melting point polyester fibers, is made of a non-woven fabric through the needle punching process, to produce a non-woven fabric bonded to LMP fibers, such as ramie fibers and binder fibers through a calendering process It aims to provide a way to.
상기한 과제를 해결하기 위하여, 본 발명의 적절한 실시 형태에 따르면, 자동차 내장재용 모시와 저융점폴리에스테르로 구성된 부직포의 제조방법은 모시원사와 저융점 폴리에스테르 섬유의 정전기를 제거하는 제전공정; 상기 모시원사와 저융점 폴리에스테르 섬유를 70:30~60:40의 중량비로 혼합하여 웹을 형성하는 소면공정;In order to solve the above problems, according to a preferred embodiment of the present invention, a method for producing a nonwoven fabric consisting of a ramie for automobile interior material and a low melting point polyester is an antistatic process for removing static electricity of the yarn yarn and low melting point polyester fiber; A carding process of mixing the ramie yarn and the low melting point polyester fiber in a weight ratio of 70:30 to 60:40 to form a web;
상기 웹을 예비 펀칭 및 메인 펀칭하는 니들펀칭 단계; 및 상기 니들펀칭 된 웹을 카렌더링 처리하는 카렌더링 공정을 포함한다.A needle punching step of pre-punching and main punching the web; And a calendering process of calendering the needle punched web.
본 발명의 적절한 실시 형태에 따르면, 상기 카렌더링 공정에서 상하부 롤러의 온도는 180~200℃이다.According to a preferred embodiment of the present invention, the temperature of the upper and lower rollers in the calendering process is 180 ~ 200 ℃.
본 발명의 다른 적절한 실시 형태에 따르면, 상기 제전공정 및 소면공정은 상대습도 50~60%, 상온에서 실시한다.According to another suitable embodiment of the present invention, the antistatic step and the carding step are carried out at a relative humidity of 50 to 60%, room temperature.
본 발명의 또 다른 적절한 실시 형태에 따르면, 상기 모시원사는 섬유장이 80~90mm이고 직경이 10~30㎛이고, 상기 저융점 폴리에스테르 섬유는 섬유장이 30~40mm이고 직경이 10~30㎛인 것을 특징으로 한다.According to another suitable embodiment of the present invention, the woolen yarn has a fiber length of 80 to 90 mm and a diameter of 10 to 30 μm, and the low melting polyester fiber has a fiber length of 30 to 40 mm and a diameter of 10 to 30 μm. It features.
본 발명에 따르면, 카렌더링 온도 및 롤러의 조건을 조절하여 기계적 강도가 우수하고, 다양한 두께를 갖는 균제도가 우수한 모시와 저융점 폴리에스테르로 구성된 부직포를 제조할 수 있다. 본 발명에서 제조된 모시와 저융점 폴리에스테르로 구성된 부직포는 항균성, 생분해성, 우수한 강도 이점을 활용한 자동차 내장재 제품으로 사용될 수 있다.According to the present invention, by adjusting the calendering temperature and the conditions of the roller, it is possible to produce a non-woven fabric composed of ramie and low-melting polyester having excellent mechanical strength and excellent uniformity with various thicknesses. Nonwoven fabric composed of ramie and low melting point polyester produced in the present invention can be used as an automotive interior product utilizing the advantages of antibacterial, biodegradable, excellent strength.
또한 본 발명은 전체 공정에서 기계화된 장비를 사용하여 자동화함으로써, 제조공정이 간단하고 균제도가 우수한 모시와 저융점폴리에스테르(LMP)로 구성된 부직포를 대량생산할 수 있다.In addition, the present invention can be mass-produced nonwoven fabric composed of ramie and low melting point polyester (LMP) by a simple manufacturing process and excellent uniformity by using the machined equipment in the whole process.
도 1은 본 발명의 자동차 내장재용 부직포의 제조공정을 개략적으로 나타낸 공정도이다.
도 2a 내지 도 2e는 본 발명에서 제조된 부직포의 주사전자현미경 사진이다.
도 3은 본 발명의 모시와 저융점 폴리에스테르로 구성된 부직포 자동차 내장재에 있어서, MD방향의 절단응력-신장곡선을 나타내는 도면이다.
도 4은 본 발명의 모시와 저융점 폴리에스테르로 구성된 부직포 자동차 내장재에 있어서, CD방향의 절단응력-신장곡선을 나타내는 도면이다.
도 5는 본 발명의 모시와 저융점 폴리에스테르로 구성된 부직포 자동차 내장재에 있어서, MD방향 굽힘강성을 나타내는 도면이다.
도 6은 본 발명의 모시와 저융점 폴리에스테르로 구성된 부직포 자동차 내장재에 있어서, CD방향 굽힘강성을 나타내는 도면이다.1 is a process diagram schematically showing a manufacturing process of a nonwoven fabric for automobile interior of the present invention.
2A to 2E are scanning electron micrographs of the nonwoven fabric prepared in the present invention.
Fig. 3 is a diagram showing the cut stress-elongation curve in the MD direction in the nonwoven automotive interior composed of ramie and low melting polyester of the present invention.
Fig. 4 is a diagram showing the cut stress-elongation curve in the CD direction in the nonwoven automotive interior composed of ramie and low melting polyester of the present invention.
FIG. 5 is a view showing MD direction bending stiffness in a nonwoven fabric for automobile interior composed of ramie and low melting polyester of the present invention. FIG.
6 is a view showing the CD direction bending stiffness in the nonwoven car interior material composed of the ramie and low-melting polyester of the present invention.
본 발명은 모시와 저융점 폴리에스테르를 이용한 자동차 내장재용 부직포를 제조하는 방법에 관한 것이다.The present invention relates to a method for manufacturing a nonwoven fabric for automobile interior using ramie and low melting polyester.
이하에서는 첨부된 도면을 참조하여 본 발명을 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.
도 1은 본 발명의 자동차 내장재용 부직포의 제조공정을 개략적으로 나타낸 공정도이다. 1 is a process diagram schematically showing a manufacturing process of a nonwoven fabric for automobile interior of the present invention.
도 1을 보면, 본 발명의 자동차 내장재용 부직포의 제조방법은 제전공정(S11), 소면공정(S12), 니들펀칭공정(S13), 카렌더링 공정(S14)으로 이루어진다.1, the manufacturing method of the nonwoven fabric for automobile interior of the present invention comprises an antistatic step (S11), a carding step (S12), a needle punching step (S13), a calendering step (S14).
먼저, 제전공정에서는 모시원사와 저융점 폴리에스테르 섬유를 준비하고 표준상태(25℃±3, 상대습도 50~60%)에서 24시간동안 보관하여 방적공정 중에 발생한 정전기를 제거한다(S11). First, in the antistatic process, the yarn and low-melting polyester fibers are prepared and stored for 24 hours in a standard state (25 ° C ± 3, relative humidity 50-60%) to remove static electricity generated during the spinning process (S11).
이때 모시원사는 섬유장이 80~90mm이고 직경이 10~30㎛인 것이 바람직하다. 상기 저융점 폴리에스테르 섬유는 섬유장이 30~40mm이고, 직경이 10~30㎛이고 융점이 140~200℃인 것이 바람직하다. 본 발명에서는 모시원사와 저융점 폴리에스테르 섬유를 상기와 같이 직경이 10~30㎛인 세섬유를 사용함으로써 두께가 얇고 중량이 가벼운 부직포를 제조할 수 있다.In this case, it is preferable that the fiber yarn has a fiber length of 80 to 90 mm and a diameter of 10 to 30 μm. The low-melting polyester fiber is preferably a fiber length of 30 ~ 40mm, a diameter of 10 ~ 30㎛ and a melting point of 140 ~ 200 ℃. In the present invention, the nonwoven fabric having a thin thickness and a light weight can be manufactured by using fine fibers having a diameter of 10 to 30 µm as the yarn yarn and the low melting point polyester fiber as described above.
다음으로 소면공정에서는 모시원사와 저융점 폴리에스테르 섬유를 중량비로 70:30~60:40으로 혼섬하여 중량이 100~150g/m2이고, 두께가 1~4mm가 되도록 웹을 제직한다(S12). 소면공정은 통상의 소면(carding) 방법으로 제조할 수 있는데, 상대습도가 50~60%인 조건에서 실시하는 것이 바람직하다. 상대습도가 상기 조건을 벗어나는 경우 부유섬유가 발생하여 제조된 웹이 불균해진다. 상기 소면 공정을 통해 모시섬유와 저융점 폴리에스테르 섬유를 균일하게 혼합하고 균일한 웹을 형성한다. Next, in the carding process, weaving the web so that the woolen yarn and the low-melting polyester fiber are mixed at a weight ratio of 70:30 to 60:40 so that the weight is 100 to 150 g / m 2 and the thickness is 1 to 4 mm (S12). . Although the carding process can be manufactured by a normal carding method, it is preferable to carry out on the conditions of 50-60% of a relative humidity. If the relative humidity deviates from the above conditions, suspended fibers are generated and the produced web becomes uneven. Through the carding process, the ramie fibers and the low melting polyester fibers are uniformly mixed and a uniform web is formed.
이때 저융점 폴리에스테르 섬유는 일종의 바인더로서 사용된다. 일반적으로 모시섬유는 구조적으로 크림프가 없어서 결합력이 약하여 소면공정에서 미끌림 현상이 발생한다. 그 결과 모시섬유가 소면기로 이송되지 않고 누적되는 현상이 발생한다. 이 누적현상으로 인하여 모시섬유가 소면기로 연속적으로 공급되지 않기 때문에 웹이 불균일하게 형성되는 문제점이 있다. At this time, the low melting polyester fiber is used as a kind of binder. In general, the ramie fibers are not crimped structurally, so the bonding strength is weak and slipping occurs in the carding process. As a result, a phenomenon occurs in which the ramie fibers accumulate without being transferred to a carding machine. Due to this cumulative phenomenon, there is a problem in that the web is unevenly formed because the ramie fibers are not continuously supplied to the carding machine.
또한 모시섬유만을 웹을 형성한 경우 니들펀칭 공정에서 모시섬유간 결합이 형성되지 않아 형태안정성이 확보되지 않는 문제점이 있다. 이러한 문제점을 해결하기 위하여 스트로크 수를 증가시키면 모시웹이 절단되어 버린다.In addition, in the case of forming only a web of ramie fibers, there is a problem in that form stability is not secured because no bonds between ramie fibers are formed in the needle punching process. In order to solve this problem, increasing the number of strokes causes the web to be cut.
본 발명에서는 이러한 문제점을 해결하기 위하여 바인더로서 작용할 수 있는 저융점 폴리에스테르 섬유를 사용하였다. 이때, 저융점 폴리에스테르 섬유를 전체 중량대비 30~40중량%를 사용함으로써 섬유간 결합력을 향상시키고, 웹의 형태안정성을 부여하였다. 본 발명에서는 모시섬유의 카딩효율을 증가시키고 섬유간 결합력을 향상시키기 위해 저융점 폴리에스테르 섬유를 사용하였다. 저융점 폴리에스테르 섬유의 함량을 30중량% 미만으로 사용할 경우 소면공정상의 효율이 저하되며, 40중량%를 초과할 경우에는 소면공정은 용이해지나 천연섬유 본래의 특성이 경감된다. 따라서 본 발명에서는 천연섬유를 최대한 사용하고 소면공정의 효율을 고려한 최적 조건인 30~40중량%를 사용하였다.In the present invention, a low melting polyester fiber that can act as a binder is used to solve this problem. At this time, by using 30 to 40% by weight of the low-melting point polyester fiber to the total weight to improve the bonding strength between the fibers, and gave the shape stability of the web. In the present invention, low melting polyester fibers were used to increase the carding efficiency of the ramie fibers and to improve the bonding strength between the fibers. When the content of the low melting polyester fiber is less than 30% by weight, the efficiency of the carding process is lowered. When it exceeds 40% by weight, the carding process is facilitated, but the original characteristics of the natural fiber are reduced. Therefore, in the present invention, natural fibers were used to the maximum and 30 to 40% by weight, which is the optimum condition considering the efficiency of the carding process, was used.
다음으로 소면공정에서 제조된 웹에 대하여 니들펀칭공정을 실시한다(S13). Next, a needle punching process is performed on the web manufactured in the carding process (S13).
상기 니들펀칭 공정은 예비펀칭을 먼저 실시하고, 다음으로 메인펀칭을 1회 실시한다. 니들펀칭 조건은 일반적으로 공지된 조건을 사용할 수 있는데, 본 발명에서는 예비펀칭 및 메인펀칭은 모두 침의 깊이가 5~10mm이고, 스트로크 수가 400~600n/min이고, 펀치밀도가 600~700cm-1의 조건에서 바람직하게 실시할 수 있다. In the needle punching process, preliminary punching is performed first, and then main punching is performed once. Needle punching conditions can be used generally known conditions, in the present invention, both pre-punching and main punching needle depth of 5 ~ 10mm, stroke number 400 ~ 600n / min, punch density 600 ~ 700cm -1 It can implement suitably on condition of.
니들펀칭 공정이 완료된 웹은 카렌더링 공정을 통하여 자동차 내장재용 부직포로 최종 제조된다(S14). 본 발명에서 카렌더링 공정은 상하부 롤러의 온도가 180~200℃가 되도록 조절하여 0.5~1/mm의 속도로 2회 실시하는 것이 바람직하다. 상기 상하부 롤러의 온도가 180℃ 미만인 경우에는 모시원사와 저융점 폴리에스테르 섬유 사이에 접합이 이루어지지 않고, 200℃를 초과하는 경우에는 과도한 열에 의하여 저융점 폴리에스테르 섬유가 현저하게 수축되는 현상이 발생한다. 또한 본 발명에서는 카렌더링 공정에서 사용되는 상하부 롤러의 압력을 조절하여 최종 제조되는 부직포의 두께를 조절할 수 있다.
The web after the needle punching process is completed is finally manufactured into a nonwoven fabric for automobile interior materials through a calendering process (S14). In the present invention, the calendering process is preferably performed twice at a rate of 0.5-1 / mm by adjusting the temperature of the upper and lower rollers to be 180 to 200 ° C. When the temperature of the upper and lower rollers is less than 180 ° C., no bonding is made between the linen yarn and the low melting point polyester fiber, and when the temperature exceeds 200 ° C., the phenomenon that the low melting point polyester fiber contracts significantly due to excessive heat occurs. do. In the present invention, it is possible to control the thickness of the final nonwoven fabric by adjusting the pressure of the upper and lower rollers used in the calendering process.
아래에서는 실시예를 들어서 본 발명을 상세하게 설명하지만, 아래의 실시예에 의하여 본 발명의 권리범위가 축소되거나 제한되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to Examples, but the scope of the present invention is not limited or limited by the following Examples.
본 발명에서 제조된 부직포의 물성은 아래의 방법으로 측정하였다.
The physical properties of the nonwoven fabric prepared in the present invention were measured by the following method.
(1) 굽힘특성(1) bending characteristics
시료의 굽힘특성은 가와바타 시스템(KES-FB2, KAWABATA)을 사용하여 매뉴얼에 따라 기계방향(machine direction, MD)과 수직방향(cross direction, CD)에서 각각 5회씩 측정하여 최대, 최소값을 제외한 평균값을 사용하였다.
The bending characteristics of the sample were measured five times each in the machine direction (MD) and the vertical direction (cross direction, CD) by using the Kawabata system (KES-FB2, KAWABATA). Used.
(2) 기계적 특성(2) mechanical properties
모시와 저융점폴리에스테르(LMP)로 구성된 니들펀칭 부직포의 인장특성 및 인열특성은 ASTM D 5035와 ASTM D 5735에 의거하여 인장시험기(Instron 4467, INSTRON)을 사용하여 MD와 CD에서 각각 5회와 3회씩 측정하였다. 인장시험에 사용된 시료크기는 75×25mm, 로드셀(load cell)은 500kgf, 신장속도는 300mm/min이다. 인열시험에 사용된 시료크기는 200×75mm, 로드셀은 500kgf, 신장속도는 50mm/min이다.
Tensile and tear properties of needle punched nonwoven fabrics consisting of ramie and low melting point polyester (LMP) were measured 5 times in MD and CD using tensile tester (Instron 4467, INSTRON) in accordance with ASTM D 5035 and ASTM D 5735. Three measurements were taken. The sample size used in the tensile test is 75 × 25mm, the load cell is 500kgf, and the stretching speed is 300mm / min. The sample size used in the tear test was 200 × 75mm, the load cell was 500kgf, and the stretching speed was 50mm / min.
제조예 1Production Example 1
섬유장이 88mm이고 직경이 20㎛인 모시섬유 및 섬유장이 35mm이고 직경이 20㎛인 저융점 폴리에스테르 섬유를 60:40(중량비)로 혼섬한 후, 롤카드기(roll carder)를 사용하여 소면공정을 실시한 후, 크로스래퍼(crosslapper)에 의해 계단식으로 적층되어 이송하였다. 이후 니들펀칭기(SAMHWA사 제조)를 사용하여 예비펀칭 및 주펀칭 공정을 실시하여 부직포로 제직하였다. 니들펀칭조건은 침깊이가 7mm, 스트로크수가 500n/min, 펀칭밀도가 626cm-1, 공급/송출속도는 2.7/3.0min이었다. 제조된 부직포의 주사전자현미경(S-4800, Hitachi) 사진을 도 2a에 나타내었다.
After blending the ramie fibers having 88 mm of fiber length and 20 µm in diameter and the low melting polyester fibers having 35 mm of fiber length and 20 µm in diameter at 60:40 (weight ratio), a carding process using a roll carder After carrying out, the steps were laminated and transferred by a crosslapper. Thereafter, a needle punching machine (SAMHWA Co., Ltd.) was used to perform pre-punching and main punching processes to weave nonwoven fabrics. Needle punching conditions were needle depth of 7 mm, stroke number of 500 n / min, punching density of 626 cm < -1 >, and feeding / feeding speed of 2.7 / 3.0 min. The scanning electron microscope (S-4800, Hitachi) photograph of the prepared nonwoven fabric is shown in Figure 2a.
실시예 1Example 1
제조예 1에서 제조된 니들펀칭 부직포를 카렌더링 상/하부 롤러의 온도가 180℃가 되도록 고정하여 카렌더링 처리를 하였다. 제조된 부직포의 두께는 1.58mm, 중량이 153.6g/m2 였다. 제조된 부직포의 물성을 측정하여 아래 표 1에 나타내었다. 표 1을 보면, 제조된 부직포에 있어서, MD방향의 절단강도는 159.8gf/㎟ 절단신도는 37.6%, CD방향의 절단강도는 206.3gf/㎟ 절단신도는 34.6% 이다. 굽힘강성은 MD방향이 1.696g·㎠/㎝, CD방향이 2.074g·㎠/㎝으로 구성섬유간 접착이 이루어져 모시와 저융점폴리에스테르(LMP)로 구성된 부직포 내장재 제조가 가능함을 확인할 수 있었다. 또한 부직포의 주사전자현미경(S-4800, Hitachi) 사진을 도 2b에 나타내었다. 도 2b를 보면, 모시원사와 저융점 폴리에스테르 섬유사이 및 저융점 폴리에스테르 섬유사이에 완전한 접착이 이루어진 것을 알 수 있다.
The needle punching nonwoven fabric prepared in Production Example 1 was fixed so that the temperature of the calendering upper / lower roller became 180 ° C. and the calendering treatment was performed. The prepared nonwoven fabric had a thickness of 1.58 mm and a weight of 153.6 g / m 2 . The physical properties of the prepared nonwoven fabrics were measured and shown in Table 1 below. In Table 1, in the nonwoven fabric produced, the cut strength in the MD direction was 159.8 gf / mm 2, the cut elongation was 37.6%, and the cut strength in the CD direction was 206.3 gf / mm 2, the cut elongation was 34.6%. The bending stiffness was 1.696g · cm 2 / cm in the MD direction and 2.074g · cm 2 / cm in the CD direction, and it was confirmed that the nonwoven fabric interior material composed of ramie and low melting point polyester (LMP) could be manufactured. In addition, a scanning electron microscope (S-4800, Hitachi) of the nonwoven fabric is shown in Figure 2b. 2B, it can be seen that complete adhesion is made between the yarn yarn and the low melting polyester fiber and between the low melting polyester fiber.
실시예 2Example 2
제조예 1에서 제조된 니들펀칭 부직포를 카렌더링 상/하부 롤러의 온도가 190℃가 되도록 고정하여 카렌더링 처리를 하였다. 제조된 부직포의 두께는 1.61mm 기본중량은 151.8g/㎡ 였다. 제조된 부직포의 물성을 측정하여 아래 표 1에 나타내었다. 표 1을 보면, 제조된 부직포에 있어서, MD방향에서의 절단강도는 191.0gf/㎟ 절단신도는 37.2%, CD방향에서의 절단강도는 239.8gf/㎟ 절단신도는 38.8% 이다. 굽힘강성은 MD방향이 1.950g·㎠/㎝, CD방향이 2.227g·㎠/㎝으로 구성섬유간 접착이 이루어져 모시와 저융점폴리에스테르(LMP)로 구성된 부직포 내장재 제조가 가능함을 확인할 수 있었다. 또한 부직포의 주사전자현미경(S-4800, Hitachi) 사진을 도 2c에 나타내었다. 도 2c를 보면, 모시원사와 저융점 폴리에스테르 섬유사이 및 저융점 폴리에스테르 섬유사이에 완전한 접착이 이루어진 것을 알 수 있다.
The needle punching nonwoven fabric prepared in Production Example 1 was fixed so that the temperature of the calendering upper / lower roller was 190 ° C. and the calendering treatment was performed. The prepared nonwoven fabric had a thickness of 1.61 mm and a basis weight of 151.8 g / m 2. The physical properties of the prepared nonwoven fabrics were measured and shown in Table 1 below. In Table 1, in the nonwoven fabric produced, the cutting strength in the MD direction was 191.0 gf / mm 2, the cutting elongation was 37.2%, and the cutting strength in the CD direction was 239.8 gf / mm 2, the cutting elongation was 38.8%. The bending stiffness was 1.950g · cm 2 / cm in the MD direction and 2.227g · cm 2 / cm in the CD direction, and it was confirmed that the nonwoven fabric interior material composed of ramie and low melting point polyester (LMP) could be manufactured. In addition, a scanning electron microscope (S-4800, Hitachi) of the nonwoven fabric is shown in Figure 2c. 2C, it can be seen that complete adhesion is made between the yarn yarn and the low melting polyester fiber and between the low melting polyester fiber.
비교예 1Comparative Example 1
제조예 1에서 제조된 니들펀칭 부직포를 카렌더링 상/하부 롤러의 온도가 170℃가 되도록 고정하여 카렌더링 처리를 하였다. 제조된 부직포의 두께는 1.89mm, 기본중량은 118.1g/㎡ 였다. 제조된 부직포의 물성을 측정하여 아래 표 1에 나타내었다. 표 1을 보면, 제조된 부직포에 있어서, MD방향에서의 절단강도는 51.0gf/㎟ 절단신도는 29.4%, CD방향에서의 절단강도는 59.8gf/㎟ 절단신도는 37.3% 이다. 굽힘강성은 MD방향이 0.557g·㎠/㎝, CD방향이 0.531g·㎠/㎝으로 구성섬유간 접착 불량에 의해 기계적 물성이 낮았다. 또한 부직포의 주사전자현미경(S-4800, Hitachi) 사진을 도 2d에 나타내었다. 도 2d를 보면, 구성섬유사이에 접착이 잘 이루어지지 않아서 모시와 저융점 폴리에스테르로 구성된 부직포 내장재 제조가 불가능하였다.
The needle punching nonwoven fabric prepared in Production Example 1 was fixed so that the temperature of the calendering upper / lower roller was 170 ° C. and the calendering treatment was performed. The prepared nonwoven fabric had a thickness of 1.89 mm and a basis weight of 118.1 g / m 2. The physical properties of the prepared nonwoven fabrics were measured and shown in Table 1 below. In Table 1, in the nonwoven fabric produced, the cutting strength in the MD direction was 51.0 gf / mm 2, the cutting elongation was 29.4%, and the cutting strength in the CD direction was 59.8 gf / mm 2, the cutting elongation was 37.3%. The bending stiffness was 0.557 g · cm 2 / cm in the MD direction and 0.531 g · cm 2 / cm in the CD direction, resulting in low mechanical properties due to poor adhesion between the constituent fibers. In addition, a scanning electron microscope (S-4800, Hitachi) of the nonwoven fabric is shown in Figure 2d. Referring to Figure 2d, it was not possible to make a good adhesion between the constituent fibers it was not possible to manufacture a nonwoven fabric material consisting of ramie and low melting point polyester.
비교예 2Comparative Example 2
제조예 1에서 제조된 니들펀칭 부직포를 카렌더링 상/하부 롤러의 온도가 200℃가 되도록 고정하여 카렌더링 처리를 하였다. 제조된 부직포의 두께는 1.69mm 기본중량 152.5g/㎡ 였다. 제조된 부직포의 물성을 측정하여 아래 표 1에 나타내었다. 표 1을 보면, 제조된 부직포에 있어서, MD방향에서의 절단강도는 170.1gf/㎟, 절단신도는 37.5%, CD방향은 절단강도는 177.4gf/㎟, 절단신도는 37.7% 이다. 굽힘강성은 MD방향이 1.853g·㎠/㎝, CD방향이 1.487g·㎠/㎝으로 구성섬유간 접착이 이루어져 모시와 저융점폴리에스테르(LMP)로 구성된 부직포 내장재 제조가 가능함을 확인할 수 있었다. 또한 부직포의 주사전자현미경(S-4800, Hitachi) 사진을 도 2e에 나타내었다. 도 2e를 보면, LMP섬유의 수축이 발생하는 현상이 발생한 것을 알 수 있다.The needle punching nonwoven fabric prepared in Production Example 1 was fixed so that the temperature of the calendering upper / lower roller was 200 ° C., and calendering was performed. The thickness of the prepared nonwoven fabric was 1.69 mm basis weight 152.5 g / m 2. The physical properties of the prepared nonwoven fabrics were measured and shown in Table 1 below. In Table 1, in the nonwoven fabric produced, the cutting strength in the MD direction was 170.1 gf / mm 2, the cutting elongation was 37.5%, the CD direction was 177.4 gf / mm 2, and the cutting elongation was 37.7%. The bending stiffness was 1.853g · cm 2 / cm in the MD direction and 1.487g · cm 2 / cm in the CD direction, and it was confirmed that the nonwoven fabric interior material composed of ramie and low melting point polyester (LMP) could be manufactured. In addition, a scanning electron microscope (S-4800, Hitachi) of the nonwoven fabric is shown in Figure 2e. Referring to Figure 2e, it can be seen that the phenomenon occurs that the shrinkage of the LMP fibers.
(g/㎡)weight
(g / m 2)
(mm)thickness
(mm)
(gf/㎟ )Cutting strength
(gf / ㎡)
(%)Truncation
(%)
(g·㎠/㎝)Bending stiffness
(gcm 2 / cm)
도 3은 본 발명의 모시와 저융점 폴리에스테르로 구성된 부직포 자동차 내장재에 있어서, MD방향의 절단응력(Stress)-신장(Strain) 곡선을 나타내는 도면이다. (a)는 실시예 1, (b)는 실시예 2, (c)는 비교예 1, (d)는 비교예 2의 절단응력-신장 곡선이다. FIG. 3 is a view showing a stress-strain curve in the MD direction in a nonwoven automotive interior composed of ramie and low melting polyester of the present invention. FIG. (a) is Example 1, (b) is Example 2, (c) is Comparative Example 1, and (d) is the cut stress-elongation curve of Comparative Example 2.
도 4는 본 발명의 모시와 저융점 폴리에스테르로 구성된 부직포 자동차 내장재에 있어서, CD방향의 절단응력-신장곡선을 나타내는 도면이다. Fig. 4 is a diagram showing the cut stress-elongation curve in the CD direction in the nonwoven automotive interior composed of ramie and low melting polyester of the present invention.
도 5는 본 발명의 모시와 저융점 폴리에스테르로 구성된 부직포 자동차 내장재에 있어서, MD방향 굽힘강성(Bending rigidity)을 나타내는 도면이다.5 is a view showing the bending direction rigidity (MD) bending in the non-woven car interior material composed of a ramie and a low melting point polyester of the present invention.
도 6은 본 발명의 모시와 저융점 폴리에스테르로 구성된 부직포 자동차 내장재에 있어서, CD방향 굽힘강성(Bending rigidity)을 나타내는 도면이다.FIG. 6 is a view showing bending direction rigidity in the CD direction in the nonwoven fabric for automobile interior composed of ramie and low melting point polyester of the present invention. FIG.
본 발명의 방법에 의해 제조된 자동차 내장재용 모시와 저융점 폴리에스테르로 구성된 부직포는 카렌더링 온도 및 롤러의 조건을 조절하여 기계적 강도가 우수하고, 다양한 두께를 갖는 균제도가 우수하다. 따라서 본 발명에서 제조된 모시와 저융점 폴리에스테르로 구성된 부직포는 항균성, 생분해성, 우수한 강도 이점을 갖기 때문에 자동차 내장재 제품, 특히 천장재로 사용할 수 있다.The nonwoven fabric composed of ramie for automobile interior materials and low melting point polyester produced by the method of the present invention is excellent in mechanical strength by controlling the calendering temperature and the conditions of the roller, and excellent in evenness having various thicknesses. Therefore, the nonwoven fabric composed of ramie and low melting point polyester produced in the present invention can be used as an automotive interior product, especially a ceiling material because it has the advantages of antibacterial, biodegradable, and excellent strength.
Claims (4)
모시원사와 저융점 폴리에스테르 섬유의 정전기를 제거하는 제전공정;
상기 모시원사와 저융점 폴리에스테르 섬유를 70:30~60:40의 중량비로 혼합하여 웹을 형성하는 소면공정;
상기 웹을 예비 펀칭 및 메인 펀칭하는 니들펀칭 단계; 및
상기 니들펀칭 된 웹을 카렌더링 처리하는 카렌더링 공정을 포함하는 모시와 저융점폴리에스테르로 구성된 부직포의 제조방법.In the manufacturing method of nonwoven fabric composed of ramie for automobile interior materials and low-melting point polyester,
An antistatic process for removing static electricity from the woolen yarn and the low melting polyester fiber;
A carding process of mixing the ramie yarn and the low melting point polyester fiber in a weight ratio of 70:30 to 60:40 to form a web;
A needle punching step of pre-punching and main punching the web; And
A method for producing a nonwoven fabric comprising a ramie and a low melting polyester comprising a calendering process of calendering the needle punched web.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0899574A (en) * | 1994-09-29 | 1996-04-16 | Kotobukiya Furonte Kk | Automobile carpeting body and manufacture thereof |
| KR20090117564A (en) * | 2008-05-08 | 2009-11-12 | 김영수 | Natural fiber floorboard |
| KR100987710B1 (en) | 2009-08-27 | 2010-10-13 | (주) 금토일산업 | The high rigid nonwoven fabrics and the manufacturing methods thereof |
| KR101015513B1 (en) | 2005-02-21 | 2011-02-16 | (주)리앤에스 | The member for interior products of motor vehicles with multilayer structure |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0899574A (en) * | 1994-09-29 | 1996-04-16 | Kotobukiya Furonte Kk | Automobile carpeting body and manufacture thereof |
| KR101015513B1 (en) | 2005-02-21 | 2011-02-16 | (주)리앤에스 | The member for interior products of motor vehicles with multilayer structure |
| KR20090117564A (en) * | 2008-05-08 | 2009-11-12 | 김영수 | Natural fiber floorboard |
| KR100987710B1 (en) | 2009-08-27 | 2010-10-13 | (주) 금토일산업 | The high rigid nonwoven fabrics and the manufacturing methods thereof |
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