KR20070047872A - Method of manufacturing multi-layer textile comprising nanofiber layer - Google Patents

Method of manufacturing multi-layer textile comprising nanofiber layer Download PDF

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Publication number
KR20070047872A
KR20070047872A KR1020050104703A KR20050104703A KR20070047872A KR 20070047872 A KR20070047872 A KR 20070047872A KR 1020050104703 A KR1020050104703 A KR 1020050104703A KR 20050104703 A KR20050104703 A KR 20050104703A KR 20070047872 A KR20070047872 A KR 20070047872A
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South Korea
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spinning liquid
fiber laminate
fiber
nanofiber layer
spinning
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KR1020050104703A
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Korean (ko)
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김학용
박종철
군 호 고
영 준 류
관 우 김
철 기 김
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김학용
박종철
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Priority to KR1020050104703A priority Critical patent/KR20070047872A/en
Publication of KR20070047872A publication Critical patent/KR20070047872A/en

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0015—Electro-spinning characterised by the initial state of the material
    • D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
    • 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
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • 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
    • D04H1/4334—Polyamides
    • 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
    • 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
    • D04H1/4358—Polyurethanes
    • 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
    • D04H1/4374—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 using different kinds of webs, e.g. by layering webs
    • 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
    • D04H1/498—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 entanglement of layered webs
    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding

Abstract

본 발명은 나노섬유층을 갖는 섬유 적층체의 제조방법에 관한 것으로서 계량펌프(2)와 노즐블록(4) 사이에 (ⅰ) 밀폐된 원통상의 형상을 갖고, (ⅱ) 그 상단부에는 방사액 유도관(3c)과, 하단으로 기체가 유입되며 기체 유입부가 필터(3a)와 연결되어 있는 기체 유입관(3b)이 나란하게 배열되어 있고, (ⅲ) 그 하단부에는 방사액 배출관(3d)이 돌출되어 있으며, (ⅳ) 그 중간부에는 방사액이 방사액 유도관(3c)으로부터 드롭(drop) 될 수 있는 중공부가 각각 형성되어 있는 방사액 드롭장치(3)가 설치되어 있는 2개 이상의 전기방사장치로 이송중인 섬유기재상에 융점이 상대적으로 낮은 고분자 방사액과 융점이 상대적으로 높은 고분자 방사액을 교호로 전기방사하여 이들의 나노섬유들로 이루어진 층들을 교호로 적층시킨 다음, 이를 열처리 또는 열압착하여 적층된 각층들을 일체로 접착시키는 것을 특징으로 한다.The present invention relates to a method for producing a fiber laminate having a nanofiber layer, and has a cylindrical shape (i) sealed between a metering pump 2 and a nozzle block 4, and (ii) a spinning liquid induction at the upper end thereof. A pipe 3c and a gas inlet tube 3b having a gas inflow to the lower end and a gas inlet connected to the filter 3a are arranged side by side, and (iii) a spinning liquid discharge tube 3d protrudes at the lower end thereof. (I) at least two electrospinning devices having a spinning liquid drop device 3 having a hollow part in which a spinning liquid can be dropped from the spinning liquid induction pipe 3c, respectively; Alternately electrospin the polymer spinner with a relatively low melting point and the polymer spinner with a relatively high melting point on the fiber substrate being transferred to the device to alternately stack layers of nanofibers, and then heat or heat Pressed and laminated It characterized in that for bonding the respective layers in one piece.

본 발명은 나노섬유층을 갖는 섬유 적층체를 별도의 라미네이팅 공정 없이도 제조할 수 있다.The present invention can produce a fiber laminate having a nanofiber layer without a separate laminating process.

섬유 적층체, 열처리, 전기방사, 나노섬유, 드롭발생장치, 방사액, 전압 Fiber laminate, heat treatment, electrospinning, nanofiber, drop generator, spinning solution, voltage

Description

나노섬유층을 갖는 섬유 적층체의 제조방법{Method of manufacturing multi-layer textile comprising nanofiber layer}Method of manufacturing multi-layer textile comprising nanofiber layer

도 1은 본 발명의 공정 개략도1 is a process schematic diagram of the present invention

도 2 (a)는 방사액 드롭장치 단면도Figure 2 (a) is a cross-sectional view of the spinning liquid drop device

도 2 (b)는 방사액 드롭장치 사시도2 (b) is a perspective view of the spinning liquid drop device

도 2 (c)는 방사액 드롭장치 평면도2 (c) is a plan view of the spinning liquid drop device

도 2 (d)는 방사액 드롭장치 필터 확대도Figure 2 (d) is an enlarged view of the spinning solution drop filter

도 3은 실시예 1로 제조한 섬유 적층체의 단면 모식도.3 is a schematic cross-sectional view of the fiber laminate produced in Example 1. FIG.

※ 도면중 주요부분에 대한 부호 설명※ Explanation of main parts in drawings

1 : 방사액 주탱크 2 : 계량 펌프 3 : 방사액 드롭장치1: spinning liquid main tank 2: metering pump 3: spinning liquid drop device

4 : 노즐 블록 5 : 노즐 6 : 컬렉터4: nozzle block 5: nozzle 6: collector

7 : 섬유기재 공급 로울러 8 : 섬유기재 9 : 이송로울러7: Fiber base supply roller 8: Fiber base 9: Feed roller

10 : 열처리 장치 또는 열압착장치 11 : 섬유 적층체 권취로울러10: heat treatment apparatus or thermocompression bonding apparatus 11: fiber laminate winding roller

12 : 전압발생장치 3a : 방사액 드롭장치의 필터 3b : 기체유입관 12: voltage generator 3a: filter of the spinning liquid drop device 3b: gas inlet pipe

3c : 방사액 유도관 3d : 방사액 배출관3c: spinning liquid induction pipe 3d: spinning liquid discharge pipe

L1, L3 : 접착성분으로 이루어진 층 L1, L3: layer made of adhesive

L2, L4 : 나노섬유 성분으로 이루어진 층L2, L4: Layer composed of nanofiber components

본 발명은 나노섬유층을 갖는 섬유 적층체의 제조 방법에 관한 것이다. The present invention relates to a method for producing a fiber laminate having a nanofiber layer.

보다 구체적으로 본 발명은 이송중인 섬유기재 위에 2개 이상의 전기방사 장치로 2종 이상의 고분자 방사액을 교호로 전기방사하여 서로 다른 나노섬유들로 이루어진 2종 이상의 층들을 교호로 적층시킨 다음, 이를 열처리 또는 열압착 하여 별도의 라미네이팅 공정 없이도 나노섬유층을 갖는 섬유 적층체를 제조하는 방법에 관한 것이다.More specifically, the present invention by alternately electrospinning two or more kinds of polymer spinning solution with two or more electrospinning apparatus on the fiber substrate being transported alternately laminated two or more layers made of different nanofibers, and then heat treatment Or it relates to a method of manufacturing a fiber laminate having a nanofiber layer without a separate laminating process by thermal compression.

미국 4,044,404호 등에 기재되어 있는 종래 전기 방사 장치 및 이를 이용한 나노섬유의 제조방법은 다음과 같다. Conventional electrospinning apparatuses described in US 4,044,404 and the like and a method of manufacturing nanofibers using the same are as follows.

종래 전기 방사 장치는 방사액을 보관하는 방사액 주탱크 방사액의 정량 공급을 위한 계량펌프 방사액을 토출하는 다수개의 노즐, 상기 노즐 하단에 위치하여 방사되는 섬유들을 집적하는 컬렉터, 전압을 발생시키는 전압발생장치 및 발생된 전압을 노즐과 컬렉터로 전달하는 기구들로 구성되어 있다.Conventional electrospinning apparatus includes a plurality of nozzles for discharging a spinning pump main tank for quantitative supply of spinning liquid, a collector for accumulating fibers disposed at a lower end of the nozzle, and a voltage generator. It consists of a voltage generator and mechanisms for transferring the generated voltage to the nozzle and the collector.

상기 전기 방사 장치를 이용한 종래의 나노섬유 제조방법을 구체적으로 살펴보면, 방사액 주탱크 내 방사액을 계량펌프를 통해 높은 전압이 부여되는 다수의 노즐 내로 연속적으로 정량 공급한다.Looking at the conventional method for producing a nanofiber using the electrospinning device in detail, the spinning liquid in the spinning liquid main tank is continuously metered into a plurality of nozzles to which a high voltage is applied through a metering pump.

계속해서, 노즐들로 공급된 방사액은 노즐을 통해 높은 전압이 걸려있는 컬렉트 상으로 방사, 집속되어 단섬유(나노섬유) 웹이 형성된다.Subsequently, the spinning liquid supplied to the nozzles is spun and concentrated through a nozzle onto a collector under high voltage to form a single fiber (nanofiber) web.

이와 같은 종래의 전기 방사 장치 및 이를 이용한 나노섬유의 제조방법은, 높은 전압이 걸려있는 노즐로 방사액이 연속적으로 공급되기 때문에 부여되는 전기력 효과가 저하되는 문제가 있다.Such a conventional electrospinning apparatus and a method of manufacturing nanofibers using the same have a problem in that the electric force effect imparted is lowered because the spinning liquid is continuously supplied to a nozzle having a high voltage applied thereto.

보다 구체적으로 노즐에 부여된 전기력이 방사액 전부로 분산됨으로써 전기력이 방사액의 계면장력을 극복하지 못하게 되고, 그 결과 전기력에 의한 섬유형성 효과가 저하되어 대량 생산이 어렵게 되는 문제가 있었다.More specifically, the electric force imparted to the nozzle is dispersed in all the spinning liquid, so that the electric force does not overcome the interfacial tension of the spinning liquid, and as a result, the fiber forming effect by the electric force is lowered, resulting in a difficulty in mass production.

또한 방사액이 다수의 노즐을 통해 방사되므로, 다시 말해 노즐블록들로 구분되어 있지 않아, 단섬유 웹의 폭 및 두께 조절이 어려운 문제가 있었다.In addition, since the spinning liquid is spun through a plurality of nozzles, that is, not divided into nozzle blocks, there is a problem that it is difficult to control the width and thickness of the short fiber web.

또한, 제조된 나노섬유 웹으로 필터 중간재와 같은 섬유 적층체를 제조하기 위해서는 섬유기재상에 나노섬유 웹을 라미네이팅 해 주는 별도의 공정을 거쳐야 하는 번거러움이 있었다.In addition, in order to manufacture a fiber laminate such as a filter intermediate material from the manufactured nanofiber web, there was a need to go through a separate process of laminating the nanofiber web on a fiber substrate.

본 발명의 목적은 전기 방사시 노즐블록(6)에 부여되는 전기력 효과를 극대화시켜, 다시 말해 전기력을 방사액의 계면장력보다 크게 하여 섬유형성 효과를 증진시켜, 나노섬유를 대량 생산할 수 있는 전기 방사 장치를 2개 이상 사용하여 섬유기재상에 융점이 상대적으로 낮은 고분자 방사액(접착용 성분)과 융점이 상대적으로 높은 고분자 방사액(나노섬유 성분)을 교호로 전기방사하여 별도의 라미네이팅 공정 없이도 나노섬유층을 갖는 섬유 적층체를 제조하는 방법을 제공하기 위한 것이다.An object of the present invention is to maximize the electric force effect imparted to the nozzle block (6) during electrospinning, that is to say, the electric force is greater than the interfacial tension of the spinning liquid to enhance the fiber forming effect, electrospinning which can mass-produce nanofibers By using two or more devices, the polymer spinning liquid (adhesive component) having a relatively low melting point and the polymer spinning liquid (nano fiber component) having a relatively high melting point are alternately electrospun on a fiber substrate, thereby eliminating the need for a separate laminating process. It is to provide a method for producing a fiber laminate having a fiber layer.

이와 같은 과제들을 달성하기 위한 본 발명의 제조방법은 계량펌프(2)와 노즐블록(4) 사이에 (ⅰ) 밀폐된 원통상의 형상을 갖고, (ⅱ) 그 상단부에는 방사액 유도관(3c)과, 하단으로 기체가 유입되며 기체 유입부가 필터(3a)와 연결되어 있는 기체 유입관(3b)이 나란하게 배열되어 있고, (ⅲ) 그 하단부에는 방사액 배출관(3d)이 돌출되어 있으며, (ⅳ) 그 중간부에는 방사액이 방사액 유도관(3c)으로부터 드롭(drop) 될 수 있는 중공부가 각각 형성되어 있는 방사액 드롭장치(3)가 설치되어 있는 2개 이상의 전기방사장치로 이송중인 섬유기재상에 융점이 상대적으로 낮은 고분자 방사액과 융점이 상대적으로 높은 고분자 방사액을 교호로 전기방사하여 이들의 나노섬유들로 이루어진 층들을 교호로 적층시킨 다음, 이를 열처리 또는 열압착하여 적층된 각층들을 일체로 접착시키는 것을 특징으로 한다.The manufacturing method of the present invention for achieving these problems has a cylindrical shape (i) sealed between the metering pump (2) and the nozzle block (4), (ii) the top of the spinning liquid induction pipe (3c) ), And a gas inlet pipe 3b having a gas inlet and a gas inlet connected to the filter 3a are arranged side by side, (iii) a spinneret discharge pipe 3d protrudes from the lower end thereof. (Iii) in the middle part of which is transferred to two or more electrospinning devices provided with a spinning liquid dropping device (3), each having a hollow portion in which the spinning liquid can be dropped from the spinning liquid induction pipe (3c); Alternately electrospin the polymer spinning solution having a relatively low melting point and the polymer spinning solution having a relatively high melting point on the fibrous substrate, and alternately stack layers of these nanofibers, and then heat-treat or thermo-compress them. Work on each floor That of adhering to the features.

이하, 첨부한 도면 등을 통하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 도 1과 같이 도 2 의 방사액 드롭장치(3)가 설치되어 있는 2개 이상의 전기방사장치로 이송중인 섬유기재상에 융점이 상대적으로 낮은 고분자 방사액(접착 성분)과 융점이 상대적으로 높은 고분자 방사액(나노섬유 성분)을 교호로 전기방사하여 이들의 나노섬유들로 이루어진 층들을 도 3과 같이 교호로 적층시킨 다음, 이를 열처리 또는 열압착 하여 나노섬유층을 갖는 섬유 적층체를 제조한다.The present invention relates to a polymer spinning liquid (adhesive component) having a relatively low melting point and a melting point on a fiber substrate being transferred to two or more electrospinning apparatuses in which the spinning solution dropping apparatus 3 of FIG. 2 is installed as shown in FIG. 1. The high polymer spinning solution (nanofiber component) was alternately electrospun, and layers of these nanofibers were alternately laminated as shown in FIG. 3, followed by heat treatment or thermocompression to prepare a fiber laminate having a nanofiber layer. do.

도 3은 상기와 같이 전기방사된 섬유 적층체의 단면 모식도이며, 섬유기재(8)상에 접착성분으로 이루어진 층(L1 및 L3)와 나노섬유 성분으로 이루어진 층(L2 및 L4)들이 교호로 적층된 구조이다.FIG. 3 is a schematic cross-sectional view of the electrospun fiber laminate as described above, in which layers L1 and L3 made of an adhesive component and layers L2 and L4 made of a nanofiber component are alternately stacked on the fiber substrate 8. Structure.

상기와 같은 단면 구조를 갖는 적층체는 열처리 또는 열압착에 의해 접착성분들로 이루어진 층(L1 및 L3)가 용융되면서 접착제 역할을 수행하여 섬유기재(8)와 나노섬유로 이루어진 층(L2 및 L4)들을 일체로 접착시키게 된다.The laminate having the cross-sectional structure as described above acts as an adhesive while the layers L1 and L3 made of adhesive components are melted by heat treatment or thermocompression, thereby forming a layer consisting of the fiber base 8 and the nanofibers (L2 and L4). ) Are bonded together.

본 발명에서 섬유기재라 함은 방적사, 필라멘트, 직물, 편물, 부직포와 같은 섬유제품은 물론 종이, 막, 브레이드 등도 포함한다. In the present invention, the fiber base includes fiber products such as yarn, filament, woven fabric, knitted fabric, and nonwoven fabric, as well as paper, film, and braid.

본 발명에서 사용하는 전기방사장치는 도 1 ~ 도 2와 같이 방사액을 보관하는 방사액 주탱크(1), 방사액 정량 공급을 위한 계량펌프(2), 다수개의 핀으로 구성되는 노즐(5)이 블록형태로 조합되어 있으며 방사액을 섬유상으로 토출하는 노즐블록(4), 토출되는 나노섬유를 포집하는 컬렉터(6), 고전압을 발생시키는 전압발생장치(12) 및 상기 계량펌프(2)와 노즐블록(4) 사이에 위치하는 방사액 드롭장치(3)로 구성된다.Electrospinning apparatus used in the present invention as shown in Figs. 1 to 2, the spinning liquid main tank (1) for storing the spinning liquid, a metering pump (2) for supplying the spinning liquid, nozzles consisting of a plurality of pins (5) ) Is combined in the form of a block, a nozzle block 4 for discharging the spinning liquid into a fiber, a collector 6 for collecting the discharged nanofibers, a voltage generator 12 for generating a high voltage, and the metering pump 2 And a spinning liquid drop device 3 positioned between the nozzle block 4.

상기 방사액 드롭장치(3)는 도 2(a)~도 2(d)와 같이 전체적으로 밀폐된 원통상의 형상을 갖는다. 방사액 드롭장치(3)의 상단부에는 방사액을 노즐블록 쪽으로 유도하는 방사액 유도관(3c)과 기체유입관(3b)이 나란하게 배열되어 있다. 이때 방사액 유도관(3c)을 기체유입관(3b)보다 조금 길게 형성하는 것이 바람직하다.The spinning liquid drop device 3 has a cylindrical shape as a whole, as shown in Figs. 2 (a) to 2 (d). At the upper end of the spinning liquid dropping device 3, a spinning liquid induction pipe 3c and a gas inlet pipe 3b for guiding the spinning liquid toward the nozzle block are arranged side by side. At this time, it is preferable to form the spinning liquid induction pipe (3c) slightly longer than the gas inlet pipe (3b).

상기 기체유입관의 하단으로부터 기체가 유입되며, 처음 기체가 유입되는 부분은 도 2(d)와 같은 형상의 필터(3a)와 연결된다. Gas is introduced from the lower end of the gas inlet pipe, the first gas is introduced portion is connected to the filter 3a of the shape as shown in Fig. 2 (d).

방사 드롭장치(3)의 하단부에는 드롭된 방사액을 노즐블록(4)으로 유도하는 방사액 배출관(3d)이 형성되어 있다. At the lower end of the spinning drop device 3, a spinning liquid discharge pipe 3d for guiding the dropped spinning liquid to the nozzle block 4 is formed.

방사 드롭장치(3) 중간부는 방사액이 방사액 유도관(3c)의 말단부에서 드롭 (drop) 될 수 있도록 중공상태로 형성되어 있다.The middle portion of the spinning drop device 3 is formed in a hollow state so that the spinning liquid can be dropped at the distal end of the spinning guide tube 3c.

상기 방사액 드롭장치(3)로 유입된 방사액은 방사액 유도관(3c)을 따라 흘러내리다가 그 말단부에서 드롭(drop)되어 방사액의 흐름이 한번이상 차단된다. The spinning liquid flowing into the spinning liquid dropping device 3 flows down along the spinning liquid induction pipe 3c and is dropped at its distal end to block the flow of the spinning liquid more than once.

방사액이 드롭(drop)되는 원리를 구체적으로 살펴보면, 필터(3d) 및 기체 유입관(3b)을 따라 기체가 밀폐된 방사액 드롭장치(3)의 상단부로 유입되면 기체 와류 등에 의해 방사액 유도관(3c)의 압력이 자연적으로 불규칙하게 되며, 이때 발생하는 압력차로 인해 방사액이 드롭(drop)되게 된다. Looking at the principle that the spinning liquid is dropped (drop), when the gas is introduced into the upper end of the closed spinning liquid drop device 3 along the filter (3d) and the gas inlet pipe (3b), the spinning liquid is induced by gas vortex, etc. The pressure in the tube 3c becomes naturally irregular, and the spinning liquid drops due to the pressure difference that occurs.

이를 위해 방사액 드롭장치(3)의 상부에는 어느정도 공간을 확보 할 수 있도록 제조된다.To this end, the upper part of the spinning liquid drop device (3) is manufactured to ensure a certain amount of space.

본 발명에서 유입되는 기체로는 공기 또는 질소 등의 불활성 가스를 사용할 수 있다.As the gas introduced in the present invention, an inert gas such as air or nitrogen may be used.

한편, 상기 노즐블록(4)은 2개 이상의 핀(pin)으로 구성되는 블록단위로 배열되어 있다. 한개 노즐블록(4) 내에 형성되는 핀 개수는 2~100,000개, 더욱 바람직 하기로는 20~2,000개로 조정하는 것이 좋다. 상기 노즐 핀의 형태는 원형 또는 이형 단면이며, 주사바늘 형태로도 할 수 있다. 노즐 핀은 원주상, 격자상 또는 일렬로 배열 할 수 있다. 더욱 좋기로는 일렬로 배열하는 것이 좋다.On the other hand, the nozzle block 4 is arranged in a block unit consisting of two or more pins (pin). The number of pins formed in one nozzle block 4 is preferably 2-100,000, more preferably 20-2,000. The nozzle pin may have a circular shape or a release cross section, and may also have a needle shape. The nozzle pins can be arranged in circumferential, lattice, or line. More preferably, they are arranged in a line.

노즐블록(4)의 형태가 원형이라 함은 다수의 핀이 원둘레에 배열되어 있는 것을 의미하며, 분할 형태라 함은 다수의 핀을 용도에 따라 일정한 개수를 포함한 블록을 의미한다. 즉, 2분할이라 함은 양쪽에서 마주보도록 하여 배열하는 것을 의미하며, 3분할이라 함은 배열이 120°간격으로 배열함을 의미한다.The circular shape of the nozzle block 4 means that a plurality of pins are arranged around the circumference, and the split shape means a block including a predetermined number of pins according to a purpose. That is, two divisions means that they are arranged so as to face each other, three divisions means that the arrangement is arranged at intervals of 120 °.

컬렉터(6)는 방사되는 나노섬유를 이동되는 섬유기재상 포집하는 역할을 한다.The collector 6 serves to collect the nanofibers being spun on the moving fibrous base.

다음으로는 본 발명에 따른 전기방사 방식으로 섬유 적층체를 제조하는 방법을 보다 구체적으로 살펴본다.Next, a method of manufacturing the fiber laminate by the electrospinning method according to the present invention will be described in more detail.

먼저, 도 1과 같이 도 2의 방사액 드롭장치(3)가 설치되어 있는 4개의 전기방사장치로 이송중인 섬유기재(8)상에 융점이 상대적으로 낮은 고분자 방사액(접착 성분)과 융점이 상대적으로 높은 고분자 방사액(나노섬유 성분)을 교호로 전기방사하여 이들의 나노섬유들로 이루어진 층들을 도 3과 같이 교호로 적층 시킨다.First, as shown in FIG. 1, a polymer spinning liquid (adhesive component) having a relatively low melting point and melting point on the fiber substrate 8 being transferred to the four electrospinning apparatuses in which the spinning solution dropping apparatus 3 of FIG. 2 is installed. The relatively high polymer spinning solution (nanofiber component) is alternately electrospun and layers of nanofibers are alternately stacked as shown in FIG. 3.

다시 말해, 첫번째 전기방사장치와 세번째 전기방사장치로는 융점이 상대적으로 낮은 고분자 방사액을 전기방사하고, 두번째 전기방사장치와 네번째 전기방사장치로는 융점이 상대적으로 높은 고분자 방사액을 전기방사 한다.In other words, the first electrospinning device and the third electrospinning device electrospin the polymer spinning solution having a relatively low melting point, and the second electrospinning device and the fourth electrospinning device electrospin the polymer spinning liquid having a relatively high melting point. .

융점이 상대적으로 낮은 고분자 방사액으로는 폴리에스테르, 폴리프로필렌, 폴리에틸렌, 폴리카보네이트, 나일론, 폴리우레탄 등의 열가소성 수지 및 이들의 블렌드 및 공중합체이다.Polymer spinning liquids having a relatively low melting point are thermoplastic resins such as polyester, polypropylene, polyethylene, polycarbonate, nylon, polyurethane, and blends and copolymers thereof.

융점이 상대적으로 높은 고분자 방사액으로는 폴리에스테르, 폴리프로필렌, 폴리에틸렌, 폴리카보네이트, 나일론, 폴리우레탄 등의 열가소성 수지 및 이들의 블렌드 및 공중합체이다.Polymer spinning solutions having a relatively high melting point include thermoplastic resins such as polyester, polypropylene, polyethylene, polycarbonate, nylon, polyurethane, and blends and copolymers thereof.

부연하여 설명하면 융점 차이가 있는 고분자를 이용하여 별도의 노즐 블록 을 이용하여 방사하고 이를 온도 차이를 이용하여 가열 가능한 로울러를 이용하여 접착하면 되는 것이다. 예를 들면 저융점 폴리에스테르(융점 : 80-220℃)와 일반 폴리에스테르 별도의 블록을 이용하여 방사 후에 열처리 로울러를 통과하여 간단하게 on-line 상에서 적층이 가능하다.In detail, the polymer may be radiated using a separate nozzle block using a polymer having a difference in melting point, and then bonded using a roller capable of heating using a temperature difference. For example, low melting polyester (melting point: 80-220 ℃) and general polyester can be laminated on-line simply by passing through a heat treatment roller after spinning using a separate block.

이와 같이 방사액 드롭장치(3) 내로 공급된 방사액은 방사액 드롭장치(3)를 통과하면서 앞에서 상세하게 설명한 메카니즘에 따라 불연속적으로, 다시말해 방사액의 흐림이 한번 이상 차단되면서, 본 발명의 높은 전압이 걸려있는 노즐블록(4)으로 공급된다.In this way, the spinning liquid supplied into the spinning liquid dropping device 3 passes through the spinning liquid dropping device 3 while being discontinuously, in other words, the clouding of the spinning liquid is blocked at least once in accordance with the above-described mechanism. The high voltage of is supplied to the hanging nozzle block (4).

계속해서 상기 노즐블록(4)에서는 방사액을 노즐을 통해 단섬유 상으로 섬유기재 위에 토출하게 된다.Subsequently, in the nozzle block 4, the spinning liquid is discharged onto the fiber substrate through the nozzle in the form of short fibers.

이때 전기력에 의한 섬유형성을 촉진하기 위하여 노즐블록(4) 상단부와 컬렉터(6)에는 전압발생장치(8)에서 발생된 1kV 이상, 더욱 좋기로는 20kV 이상의 전압을 걸어준다.At this time, in order to promote fiber formation by electric force, a voltage of 1 kV or more, more preferably 20 kV or more, generated by the voltage generator 8 is applied to the upper end of the nozzle block 4 and the collector 6.

본 발명은 방사액 드롭장치(3)를 사용하여 방사액을 노즐블록(4)에 공급할 때 한번 이상 차단(drop)시켜 줌으로써, 섬유형성성을 극대화할 수 있다. 그 결과 전기력에 의한 섬유형성 효과가 높아져 나노섬유를 공업적으로 섬유기재상에 방사, 코팅할 수 있다.In the present invention, when the spinning solution is supplied to the nozzle block 4 using the spinning solution drop device 3, the spinning solution may be dropped at least once, thereby maximizing fiber formation. As a result, the fiber forming effect by the electric force is increased, and the nanofibers can be industrially spun and coated on the fiber substrate.

본 발명의 방법에 따라 용융방사 방식으로 방사되는 섬유의 직경은 1,000nm 이상이고, 용액방사 방식으로 방사되는 섬유 직경은 1~500nm 수준이다. 상기 용액방사 방식에는 습식방사와 건식방사 모두가 포함된다.According to the method of the present invention, the diameter of the fiber spun by melt spinning is 1,000 nm or more, and the diameter of the fiber spun by solution spinning is 1 to 500 nm. The solution spinning method includes both wet spinning and dry spinning.

다음으로는, 상기와 같이 섬유기재상에 나노섬유층이 적층되어 있는 적층체를 열처리 또는 열압착하여 이들을 일체로 접착시켜 섬유 적층체를 제조한다.Next, as described above, the laminate in which the nanofiber layer is laminated on the fiber substrate is heat-treated or thermocompressed to bond them integrally to produce a fiber laminate.

본 발명의 방법으로 제조된 섬유 적층체는 인공피혁, 생리대, 필터, 인조혈관 등의 의료용 소재, 방한조끼, 반도체용 와이퍼, 전지용 부직포 등 다양한 용도로 사용된다.The fiber laminate produced by the method of the present invention is used for various purposes such as artificial leather, sanitary napkins, filters, medical materials such as artificial blood vessels, winter vests, semiconductor wipers, and battery nonwoven fabrics.

이하 실시예를 통하여 본 발명을 구체적으로 살펴본다.The present invention is described in detail through the following examples.

실시예Example 1 One

먼저, 도 2의 방사액 드롭장치(3)를 구비한 전기방사장치 4개를 컬렉터(6)의 길이 방향을 따라 순차적으로 배열한 다음, 첫번째 전기방사장치와 세번째 전기방사장치로는 수평균 분자량이 30,000인 핫-멜트용 폴리우레탄 수지를 N,N 디메틸포름아미드에 8중량% 용해하여 제조한 접착성분용 방사액을 컬렉터상을 통과하는 섬유기재(8)상에 전기방사하고, 두번째 전기방사장치와 네번째 전기방사장치로는 96% 황산용액에서 상대점도가 2.3인 나일론 6칩을 개미산에 25%로 용해하여 제조한 나노섬유용 방사액을 컬렉터상을 통과하는 섬유기재(8)상에 전기방사하여 도 3과 같이 섬유기재(8)상에 핫-멜트용 폴리우레탄 나노섬유로 이루어진 층(L1)과 나일론 6 나노섬유로 이루어진 층(L2)와 핫-멜트용 폴리우레탄 나노섬유로 이루어진 층(L3)와 나일론 6 나노섬유로 이루어진 층(L4)들이 차례로 적층된 적층체를 제조하였다.First, four electrospinning apparatuses having the spinning solution dropping apparatus 3 of FIG. 2 are sequentially arranged along the length direction of the collector 6, and then the number average molecular weight is used as the first electrospinning apparatus and the third electrospinning apparatus. The spinning solution for adhesive components prepared by dissolving this 30,000 hot-melt polyurethane resin in 8% by weight of N, N dimethylformamide was electrospun onto the fiber base 8 passing through the collector phase. As the device and the fourth electrospinning device, the spinning solution for nanofibers prepared by dissolving a nylon 6 chip having a relative viscosity of 2.3 in 96% sulfuric acid solution at 25% in formic acid was applied to the fiber substrate (8) passing through the collector phase. Spinning layer (L1) consisting of a hot-melt polyurethane nanofibers (L1) and nylon 6 nanofibers (L2) and a layer of hot-melt polyurethane nanofibers on the fiber substrate 8 as shown in FIG. Made of L3 and nylon 6 nanofibers Binary layer (L4) to thereby prepare a laminated body stacked in sequence.

이때, 노즐블록 1개당 핀수는 250개로 하였고, 이와 같은 노즐블록을 20블록 배열, 사용하였다. 전압 발생 장치로는 심코사의 모델 C H 50을 사용하였다.At this time, the number of pins per nozzle block was set to 250, and such a block was used in an array of 20 blocks. As a voltage generator, Simco's Model C H 50 was used.

핀 1개당 토출량은 0.0027g/으로 설정하여 총 토출량이 13.5g/분이 되도록 하였다.The discharge amount per pin was set at 0.0027 g / so that the total discharge amount was 13.5 g / min.

노즐블록 1개를 다시 10개로 세분하여 핀 10개 마다 1개의 방사액 드롭장치 (3)를 각각 설치하였다. 드롭 속도는 2.5초 간격으로 설정하였다. 핀의 형태는 원형으로 하였다. One nozzle block was further subdivided into ten, and one spinning solution drop device 3 was installed for every ten pins. Drop rates were set at 2.5 second intervals. The shape of the pin was circular.

다음으로, 제조된 적층체를 엠보싱로울러 사이로 통과시키면서 열압착하여 적층체를 구성하는 각층들을 일체로 접착하여 섬유 적층체를 제조하였다.Next, the laminated body was integrally adhered to each other constituting the laminate by thermocompression bonding the manufactured laminate through an embossing roller, thereby manufacturing a fiber laminate.

본 발명은 별도의 라미네이팅 공정 없이도 나노섬유층을 갖는 섬유 적층체를 연속적으로 대량생산할 수 있다.The present invention can continuously mass-produce a fiber laminate having a nanofibrous layer without a separate laminating process.

Claims (9)

계량펌프(2)와 노즐블록(4) 사이에 (ⅰ) 밀폐된 원통상의 형상을 갖고, (ⅱ) 그 상단부에는 방사액 유도관(3c)과, 하단으로 기체가 유입되며 기체 유입부가 필터(3a)와 연결되어 있는 기체 유입관(3b)이 나란하게 배열되어 있고, (ⅲ) 그 하단부에는 방사액 배출관(3d)이 돌출되어 있으며, (ⅳ) 그 중간부에는 방사액이 방사액 유도관(3c)으로부터 드롭(drop) 될 수 있는 중공부가 각각 형성되어 있는 방사액 드롭장치(3)가 설치되어 있는 2개 이상의 전기방사장치로 이송중인 섬유기재상에 융점이 상대적으로 낮은 고분자 방사액과 융점이 상대적으로 높은 고분자 방사액을 교호로 전기방사하여 이들의 나노섬유들로 이루어진 층들을 교호로 적층시킨 다음, 이를 열처리 또는 열압착하여 적층된 각층들을 일체로 접착시키는 것을 특징으로 하는 나노섬유층을 갖는 섬유 적층체의 제조방법.(I) It has a closed cylindrical shape between the metering pump (2) and the nozzle block (4), (ii) the top of the spinning liquid induction pipe (3c), the gas flows into the lower end and the gas inlet is a filter The gas inlet pipe 3b connected to (3a) is arranged side by side, (iii) the lower end of the spinning liquid discharge pipe 3d is protruded, and (iii) the middle part of the spinning liquid guides the spinning liquid. Polymer spinning liquid having a relatively low melting point on the fiber substrate being transported to two or more electrospinning apparatuses in which a spinning liquid drop device 3 is provided, each having a hollow portion that can be dropped from the pipe 3c. The nanofibrous layer, characterized in that the polymer spinning solution with a relatively high melting point is alternately electrospun to alternately stack layers made of these nanofibers, and then bonded to each of the laminated layers by heat treatment or thermocompression. Having Method for producing a layered product oil. 1항에 있어서, 섬유기재가 방적사, 필라멘트, 직물, 편물, 부직포, 막, 종이 또는 브레이드인 것을 특징으로 하는 나노섬유층을 갖는 섬유 적층체의 제조방법.The method for producing a fiber laminate having a nanofiber layer according to claim 1, wherein the fiber base material is spun yarn, filament, woven fabric, knitted fabric, nonwoven fabric, membrane, paper or braid. 1항에 있어서, 융점이 상대적으로 낮은 고분자 방사액이 폴리에스테르, 폴리프로필렌, 폴리에틸렌, 폴리카보네이트, 나일론 및 폴리우레탄으로 이루어진 그룹중에서 선택된 1종인 것을 특징으로 하는 나노섬유층을 갖는 섬유 적층체의 제조방법.The method for producing a fiber laminate having a nanofiber layer according to claim 1, wherein the polymer spinning solution having a relatively low melting point is one selected from the group consisting of polyester, polypropylene, polyethylene, polycarbonate, nylon, and polyurethane. . 1항에 있어서, 융점이 상대적으로 높은 고분자 방사액이 폴리에스테르, 폴리프로필렌, 폴리에틸렌, 폴리카보네이트, 나일론 및 폴리우레탄으로 이루어진 그룹중에서 선택된 1종인 것을 특징으로 하는 나노섬유층을 갖는 섬유 적층체의 제조방법.The method for producing a fiber laminate having a nanofiber layer according to claim 1, wherein the polymer spinning solution having a relatively high melting point is one selected from the group consisting of polyester, polypropylene, polyethylene, polycarbonate, nylon, and polyurethane. . 1항에 있어서, 전기방사장치의 노즐블록이 2개 이상의 핀(pin)으로 구성되는 블록단위로 배열된것을 특징으로 하는 나노섬유층을 갖는 섬유 적층체의 제조방법.The method of manufacturing a fiber laminate having a nanofiber layer according to claim 1, wherein the nozzle blocks of the electrospinning apparatus are arranged in block units consisting of two or more pins. 1항에 있어서, 한 개 노즐블록의 핀(pin) 개수가 2~100,000개인 것을 특징으로 하는 나노섬유층을 갖는 섬유 적층체의 제조방법.The method of manufacturing a fiber laminate having a nanofiber layer according to claim 1, wherein the number of pins of one nozzle block is 2 to 100,000. 1항에 있어서, 노즐 핀(pin)의 형태가 원형, 주사바늘형 또는 이형 단면인 것을 특징으로 하는 나노섬유층을 갖는 섬유 적층체의 제조방법.The method of manufacturing a fiber laminate having a nanofiber layer according to claim 1, wherein the shape of the nozzle pin is a circular, needle-shaped, or hetero-cross section. 1항에 있어서, 노즐 핀(pin)이 원주상, 격자상 또는 일렬로 배열되는 것을 특징으로 하는 나노섬유층을 갖는 섬유 적층체의 제조방법.The method for producing a fiber laminate having a nanofiber layer according to claim 1, wherein the nozzle pins are arranged in a columnar shape, a lattice shape, or in a row. 1항에 있어서, 방사액 드롭장치(3) 내로 공기 또는 불활성 기체를 유입시키는 것을 특징으로 하는 나노섬유층을 갖는 섬유 적층체의 제조방법.The method for producing a fiber laminate having a nanofiber layer according to claim 1, wherein air or an inert gas is introduced into the spinning liquid dropping device (3).
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