KR101106679B1 - Polyurethane nano fiber web and water-proof/moisture-permeable fabric comprising the same - Google Patents
Polyurethane nano fiber web and water-proof/moisture-permeable fabric comprising the same Download PDFInfo
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- KR101106679B1 KR101106679B1 KR1020080055141A KR20080055141A KR101106679B1 KR 101106679 B1 KR101106679 B1 KR 101106679B1 KR 1020080055141 A KR1020080055141 A KR 1020080055141A KR 20080055141 A KR20080055141 A KR 20080055141A KR 101106679 B1 KR101106679 B1 KR 101106679B1
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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
- D04H1/4358—Polyurethanes
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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
- D01D5/0061—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
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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
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
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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
- D04H1/70—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
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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
- 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
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
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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
- D10B2401/02—Moisture-responsive characteristics
- D10B2401/021—Moisture-responsive characteristics hydrophobic
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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
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
본 발명은 폴리우레탄 나노섬유 웹 및 이를 포함하는 투습방수원단에 관한 것으로서, 본 발명에 따른 폴리우레탄 나노섬유 웹은 평균직경이 1,000㎚ 이하인 폴리우레탄 나노섬유들로 구성된 나노섬유 웹에 있어서, 상기 폴리우레탄 나노섬유 중 일부는 습기경화형 폴리우레탄 나노섬유인 것을 특징으로 한다.The present invention relates to a polyurethane nanofiber web and a water-permeable waterproof fabric including the same, wherein the polyurethane nanofiber web according to the present invention is a nanofiber web composed of polyurethane nanofibers having an average diameter of 1,000 nm or less, wherein the poly Some of the urethane nanofibers are characterized by being moisture-curable polyurethane nanofibers.
본 발명에 따른 투습방수원단(A)은 상기 폴리우레탄 나노섬유 웹(C)이 원단(B) 상에 라미네이팅된 구조를 갖는다.Water-permeable waterproof fabric (A) according to the present invention has a structure in which the polyurethane nanofiber web (C) is laminated on the fabric (B).
본 발명에 따른 폴리우레탄 나노섬유 웹(C)은 상온에서의 수축율이 낮아 이를 원단(B) 상에 접착하는 공정을 용이하게 한다.Polyurethane nanofiber web (C) according to the invention has a low shrinkage at room temperature to facilitate the process of bonding it on the fabric (B).
본 발명에 따른 투습방수원단은 상온에서 수축율이 낮은 상기 폴리우레탄 나노섬유 웹을 포함하여 사용 중 수축이나 변형이 적고, 투습도와 내수압이 뛰어나 캐쥬얼복 및 스포츠복 제조용 소재로 유용하다.Water-permeable waterproof fabric according to the present invention, including the polyurethane nanofiber web with a low shrinkage at room temperature, less shrinkage or deformation during use, excellent moisture permeability and water pressure is useful as a material for manufacturing casual clothes and sports clothes.
투습방수원단, 나노섬유, 웹, 라미네이팅, 상온 수축, 습기경화형 Breathable waterproof fabric, nano fiber, web, laminating, shrinkage at room temperature, moisture hardening
Description
본 발명은 폴리우레탄 나노섬유 웹 및 이를 포함하는 투습방수원단에 관한 것으로서, 보다 구체적으로는 상온에서의 수축율이 낮아 원단과의 접착공정이 용이한 폴리우레탄 나노섬유 웹과 이를 포함하여 사용 중 수축이나 변형이 적고 투습도와 내수압이 우수한 투습방수원단에 관한 것이다.The present invention relates to a polyurethane nanofiber web and a moisture-repellent fabric comprising the same, and more particularly, a polyurethane nanofiber web having a low shrinkage ratio at room temperature and an easy adhesion process with a fabric and shrinkage during use including the same. The present invention relates to a water-repellent fabric having low deformation and excellent water vapor permeability and water pressure.
이하, 본 발명에서는 투습방수성을 구비한 원단을 투습방수원단이라고 한다.Hereinafter, in the present invention, the fabric provided with moisture-permeable waterproof is called water-permeable waterproof fabric.
투습방수원단은 최근 등산복, 침낭, 모자, 장갑 등의 등산용품 및 일상생활의 아웃도어 의류, 트레이닝복, 스키복, 골프웨어 등에 널리 사용되고 있는 원단으로 생활 속에서 자주 접할 수 있다. The breathable waterproof fabric is a fabric that is widely used in climbing clothes, sleeping bags, hats, gloves, outdoor clothing, training clothes, ski clothes, golf wear, etc.
본 발명에서는 평균직경이 1,000㎚ 이하인 섬유들을 나노섬유라고 하고, 상기 나노섬유들이 적층된 웹(Web)을 나노섬유 웹이라고 한다. In the present invention, fibers having an average diameter of 1,000 nm or less are called nanofibers, and a web in which the nanofibers are stacked is called a nanofiber web.
투습방수원단의 제조기술을 살펴보면 크게 3가지 방식으로 구분할 수 있는데 라미네이팅 방식, 건식 및 습식 방식으로 구분된다. 투습방수 원단은 공기는 통과시키지만, 물을 통과시키지 않는 원단을 의미하는 것이다.Looking at the manufacturing technology of the waterproof breathable fabric can be largely divided into three ways, it is divided into laminating, dry and wet. Water-permeable waterproof fabric means a fabric that allows air to pass through, but does not allow water to pass through.
첫째로 라미네이팅 방식에 관한 종래 기술로는 일본 특개평 5-124144에서는 폴리에틸렌 다공질 필름과 열접착성 섬유로 구성된 부직포를 열과 압력으로 접합시켜 제조한 투습방수시트가 기재되어 있고, 일본 특개평 3-213581에는 L-라이신과 유기산의 반응물로 된 분말을 0.1% 이상 함유하는 폴리아미노산계 폴리우레탄으로 제조된 투습필름을 원단에 라미네이트 시켜 제조한 내마모성이 우수한 투습방수 원단이 기재되어 있으며, 일본 특개평 2-47058에는 친수화된 폴리아미노산계 우레탄과 폴리우레탄의 혼합비가 10:0에서 2:8이며 이소시아네이트계 화합물, 소수성 유기용제, 친수성 유기용제 및 물로 제조된 수지 조성물을 시트 상에 도포, 건조한 후 폴리우레탄계 접착제로 라미네이트 시켜 제조한 투습방수원단이 기재되어 있다.First, the prior art of the laminating method is described in Japanese Patent Laid-Open No. 5-124144, a moisture-permeable waterproof sheet manufactured by joining a nonwoven fabric composed of a polyethylene porous film and a heat-adhesive fiber with heat and pressure, and Japanese Patent Laid-Open No. 3-213581. This article describes a wear-resistant waterproof fabric made by laminating a moisture-permeable film made of a polyamino acid-based polyurethane containing 0.1% or more of a powder of L-lysine and an organic acid on a fabric. 47058 has a mixture ratio of hydrophilized polyamino acid urethane and polyurethane from 10: 0 to 2: 8, and a resin composition made of an isocyanate compound, a hydrophobic organic solvent, a hydrophilic organic solvent, and water on a sheet, dried, and then A moisture-permeable waterproof fabric prepared by laminating with an adhesive is described.
또 다른 종래의 라미네이팅 방식으로는 원단 상에 불소계 수지로 구성된 다공성 필름을 접착제로 라미네이팅 하여 투습방수원단을 제조하는 방식도 알려져 있다.Another conventional laminating method is also known a method for producing a moisture-proof waterproof fabric by laminating a porous film composed of a fluorine-based resin with an adhesive on a fabric.
둘째로 건식방법에 관한 기술로는 일본 특개평 4-249142에는 제전성 섬유로 만든 원단면에 미세다공질피막을 형성하는 코팅을 하며, 코팅수지의 내층에는 소취성을 지닌 물질이 함유되어 있으며 코팅막의 공극율이 20~70%인 소취 제전성 투습방수 원단이 기재되어 있고, 일본 특개평 4-146275에는 섬유 표면에 불소 변성 폴리우레탄 수지로된 다공질 투습막을 형성시키고 여기에 유화계 폴리우레탄 수지 중합체로 다공질 투습막을 형성시킨 투습방수 원단이 기재되어 있고, 일본 특개평 7- 258971에는 폴리에스테르계 섬유를 주성분으로 하는 염색편직물의 코팅 가공에 있어서 코팅수지 조성물에 비환원성 말토올리고당에 환상화합물을 사용하는 것을 특징으로 하는 폴리에스테르계 직편물의 코팅가공법이 기재되어 있다.Secondly, as a technique for the dry method, Japanese Patent Laid-Open No. 4-249142 provides a coating for forming a microporous coating on a fabric surface made of antistatic fibers, and an inner layer of the coating resin contains a deodorizing substance. A deodorant antistatic moistureproof fabric having a porosity of 20 to 70% is described, and Japanese Patent Laid-Open No. 4-146275 forms a porous moisture permeable membrane made of fluorine-modified polyurethane resin on the fiber surface and is porous with an emulsion-based polyurethane resin polymer. A moisture-permeable waterproof fabric in which a moisture-permeable membrane is formed is described, and Japanese Patent Laid-Open No. 7-258971 uses a cyclic compound as a non-reducing malto oligosaccharide in a coating resin composition in coating processing of a dyed knitted fabric mainly comprising polyester fibers. The coating process of the polyester-based knitted fabric made into these is described.
셋째로 습식방법에 관한 기술로는 일본 특개평 5-78984에는 평균 입자의 직경이 0.1㎛ 이하의 미세분말을 1% 이상 함유한 폴리우레탄 수지 용액을 원단에 습식 코팅하는 방법으로 제조되어 7,000g/m2/day 이상의 투습도와 600g/cm2 이상의 내수압을 가지는 투습방수 원단이 기재되어 있고, 일본 특개평 8-13352에는 폴리우레탄 수지를 원단에 코팅하여 공극율이 40% 이상인 다공수지층이 있고, 그 수지층 내에는 1.5㎛ 이하의 소취성을 가진 미세 분말이 1~40 중량% 함유된 투습방수 원단이 기재되어 있다.Third, as a technique for a wet method, Japanese Patent Laid-Open No. 5-78984 is produced by wet coating a polyurethane resin solution containing 1% or more of fine powder having an average particle diameter of 0.1 μm or less on a fabric, and is 7,000 g / A moisture-permeable waterproof fabric having a moisture permeability of m 2 / day or more and a water resistance of 600 g / cm 2 or more is described, and Japanese Patent Application Laid-Open No. 8-13352 has a porous resin layer having a porosity of 40% or more by coating a polyurethane resin on the fabric. In the resin layer, a moisture-permeable waterproof fabric containing 1 to 40% by weight of fine powder having an odor of 1.5 μm or less is described.
이상에서 살펴본 종래기술들은 제조방법이 복잡하고 투습방수 기능을 발휘하는 필름 또는 멤브레인의 기공이 불균일하여 투습도가 낮은, 다시말해 수분이 원활하게 통과하지 못하는 단점이 있다. 뿐만 아니라, 제조과정에서 유기용매를 사용하는 경우, 원단의 염료가 유기용매에 의해 빠져나와 오염을 유발하는 경우가 발생하기도 한다.The above-described conventional techniques have a disadvantage in that the manufacturing method is complicated and the pores of the film or membrane exhibiting the moisture-permeable waterproof function are non-uniform and low moisture permeability, that is, moisture does not pass smoothly. In addition, in the case of using the organic solvent in the manufacturing process, the dye of the fabric may be released by the organic solvent to cause contamination.
또한, 불소계 수지로 구성된 다공성 멤브레인을 사용하는 경우에는 환경오염의 문제가 있었다.In addition, there is a problem of environmental pollution when using a porous membrane composed of a fluorine-based resin.
이러한 단점을 극복하기 위한 방법으로 대한민국 공개특허 2006-0022406등에서는 전기방사 방식으로 나노섬유 웹을 제조한 다음, 이를 원단 상에 접착시켜 투 습방수원단을 제조하는 방법에 게재하고 있다.As a method for overcoming these shortcomings, the Republic of Korea Patent Publication 2006-0022406 and the like has been published in the method for producing a nanofiber web by electrospinning method, and then bonded to a fabric to produce a moisture-repellent fabric.
그러나, 통상적인 전기방사 방식으로 제조된 종래의 나노섬유 웹은 상온에서 폭방향 및 길이방향으로 수축이 심하게 일어나, 이를 원단상에 접착하는 공정이 매우 어려운 문제점이 있었다.However, the conventional nanofiber web produced by the conventional electrospinning method is severely contracted in the width direction and the longitudinal direction at room temperature, there was a problem that the process of bonding it on the fabric is very difficult.
또한, 원단 상에 상기 나노섬유 웹이 접착된 구조를 갖는 종래의 투습방수원단은 앞에서 설명한 나노섬유 웹의 상온 수축특성으로 인해 사용 중 수축이나 변형이 발생되는 문제도 있었다.In addition, the conventional water-permeable waterproof fabric having a structure in which the nanofiber web is adhered on the fabric has a problem that shrinkage or deformation during use due to the room temperature shrinkage characteristics of the nanofiber web described above.
본 발명은 이와 같은 종래의 문제점들을 해소할 수 있도록 상온에서의 수축율이 낮아 이를 원단 상에 접착하는 공정을 용이하게 할 수 있는 폴리우레탄 나노섬유 웹을 제공하고자 한다.The present invention is to provide a polyurethane nanofiber web that can reduce the shrinkage at room temperature to facilitate such a conventional problem to facilitate the process of bonding it on the fabric.
또한, 본 발명은 상기 폴리우레탄 나노섬유 웹을 포함하여 사용 중 수축이나 변형이 적고, 투습도와 내수압도 뛰어난 투습방수원단을 제공하고자 한다.In addition, the present invention, including the polyurethane nanofiber web is less shrinkage or deformation during use, to provide a moisture-proof waterproof fabric having excellent moisture permeability and water pressure.
이와 같은 과제를 달성하기 위한 본 발명의 폴리우레탄 나노섬유 웹은, 평균직경이 1,000㎚ 이하인 폴리우레탄 나노섬유들로 구성된 나노섬유 웹에 있어서, 상기 폴리우레탄 나노섬유 중 일부는 습기경화형 폴리우레탄 나노섬유인 것을 특징으 로 한다.Polyurethane nanofiber web of the present invention for achieving the above object, in the nanofiber web consisting of polyurethane nanofibers having an average diameter of 1,000 nm or less, some of the polyurethane nanofibers are moisture-curable polyurethane nanofibers It is characterized by that.
또한, 본 발명의 투습방수원단은 상기 폴리우레탄 나노섬유 웹(C)이 원단(B) 상에 접착제에 의해 접착되어 있는 것을 특징으로 한다.In addition, the waterproof waterproof fabric of the present invention is characterized in that the polyurethane nanofiber web (C) is bonded to the fabric (B) by an adhesive.
이하, 첨부한 도면 등을 통하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
먼저, 본 발명의 폴리우레탄 나노섬유는 도 1과 같이 평균직경이 1,000㎚ 이하인 폴리우레탄 나노섬유들로 구성되며, 상기 폴리우레탄 나노섬유 중 일부는 습기 경화형 폴리우레탄 나노섬유이다.First, the polyurethane nanofibers of the present invention are composed of polyurethane nanofibers having an average diameter of 1,000 nm or less as shown in FIG. 1, and some of the polyurethane nanofibers are moisture-curable polyurethane nanofibers.
도 1은 본 발명에 따른 폴리우레탄 나노섬유 웹 표면의 전자현미경 사진이다.1 is an electron micrograph of the surface of the polyurethane nanofiber web according to the present invention.
상기 폴리우레탄 나노섬유 웹의 습기 경화형 폴리우레탄 나노섬유의 함량은 5~40중량%인 것이 바람직하다.The content of the moisture-curable polyurethane nanofibers of the polyurethane nanofiber web is preferably 5 to 40% by weight.
상기 함량이 너무 낮으면 상온에서의 수축특성을 일정수준 이하로 관리하기 어렵게 되고, 너무 높으면 나노섬유 웹의 물성이 저하될 수 있다.If the content is too low, it becomes difficult to manage the shrinkage characteristics at room temperature or less, and if too high, the physical properties of the nanofiber web may be lowered.
본 발명에 따른 폴리우레탄 나노섬유 웹은 습기 경화형 폴리우레탄 나노섬유들을 포함하기 때문에, 상온에서 상기 습기경화형 폴리우레탄 나노섬유들이 습기에 의해 경화되어 상온에서의 길이방향 및 폭방향 수축율이 각각 1~10%로 낮게 유지되며, 이로 인해 원단과의 접착공정이 쉬워진다.Since the polyurethane nanofiber web according to the present invention includes moisture-curable polyurethane nanofibers, the moisture-curable polyurethane nanofibers are cured by moisture at room temperature so that the longitudinal and widthwise shrinkage at room temperature are 1 to 10, respectively. It is kept as low as%, which facilitates the bonding process with the fabric.
상기 수축율이 10%를 초과하게 되면 폴리우레탄 나노섬유 웹이 수축이 너무 심해져 원단과의 접착공정이 어렵게 되고, 1% 미만인 경우에는 폴리우레탄 나노섬유 웹이 너무 스티프(Stiff)해져 원단과의 접착공정이 어렵게 될 수 있다.When the shrinkage rate exceeds 10%, the polyurethane nanofiber web shrinks so much that it becomes difficult to bond with the fabric. If the shrinkage ratio is less than 1%, the polyurethane nanofiber web becomes too stiff to adhere to the fabric. This can be difficult.
상기 폴리우레탄 나노섬유 웹(C)의 단위면적당 중량은 5~25g/㎡인 것이 바람직하나, 본 발명에서는 이를 특별하게 한정하는 것은 아니다.It is preferable that the weight per unit area of the polyurethane nanofiber web (C) is 5 to 25 g /
본 발명의 폴리우레탄 나노섬유 웹은 도 2에 도시된 전기방사 방식 등으로 제조할 수 있다.Polyurethane nanofiber web of the present invention can be produced by the electrospinning method shown in FIG.
도 2는 본 발명에 따른 폴리우레탄 나노섬유 웹(C)을 전기방사 방식으로 제조하는 공정 개략도이다.2 is a process schematic diagram of producing a polyurethane nanofiber web (C) according to the present invention by an electrospinning method.
구체적으로, 별도의 방사액 주탱크(1) 내에 각각 보관중인 통상의 폴리우레탄 수지의 방사용액과 습기경화형 폴리우레탄 수지의 방사용액들을 계량펌프(2)를 사용하여 고전압이 걸려 있는 별도의 노즐(3)로 각각 공급한 후, 상기 노즐(3)들을 통해 2종 방사용액을 고전압이 걸려 있는 컬렉터(4) 상으로 각각 전기방사하여 통상의 폴리우레탄 나노섬유와 습기경화형 폴리우레탄 나노섬유 들을 형성하여, 상기 컬렉터(4)에 나노섬유 웹이 적층되도록 한다.Specifically, the spinning solution of the ordinary polyurethane resin and the spinning solution of the moisture-curable polyurethane resin stored in the separate spinning liquid main tank 1, respectively, using a
상기 노즐(3)과 컬렉터(4)에는 전압전달로드(5)를 통해 전압발생장치(6)에서 발생되는 고전압을 걸어준다.The high voltage generated by the voltage generator 6 is applied to the
본 발명에서 사용하는 전기방사 장치에는 특별히 제한하지 않는다. 도 2에서 보는 바와 같은 다중 노즐을 사용하는 전기방사 장치를 사용할 수 있으며 이 외의 다른 형태의 전기방사 장치 또한 사용할 수 있다. 전기방사 장치는 고분자 용액을 공급하는 계량 펌프(2)와 다수의 노즐(3)로 구성되는 방사부, 고전압발생장치(6)에 의한 고전압발생부와 방사되어 휘산되는 나노섬유를 고착시키는 컬렉터(4)로 구성된다. 본 발명의 나노섬유를 방사하기 위한 발생전압은 수천 내지 수십만 볼트로 고분자 용액의 농도, 계량 펌프를 통해 공급되는 고분자 용액의 양, 얻고자 하는 나노섬유의 굵기 등을 고려하여 다양하게 적용할 수 있다.There is no restriction | limiting in particular in the electrospinning apparatus used by this invention. As shown in FIG. 2, an electrospinning apparatus using multiple nozzles may be used, and other types of electrospinning apparatuses may also be used. The electrospinning apparatus comprises a spinner comprising a metering pump (2) for supplying a polymer solution and a plurality of nozzles (3), a high voltage generator by the high voltage generator (6) and a collector for fixing the nanofibers that are spun and volatilized ( 4) consists of. The generated voltage for spinning the nanofibers of the present invention can be variously applied in consideration of the concentration of the polymer solution to thousands of hundreds of thousands of volts, the amount of the polymer solution supplied through the metering pump, and the thickness of the nanofibers to be obtained. .
한편, 본 발명의 투습방수원단은 도 3에 도시된 바와 같이 상기의 폴리우레탄 나노섬유 웹(C)이 원단(B) 상에 접착된 구조를 갖는다.On the other hand, the moisture-proof waterproof fabric of the present invention has a structure in which the polyurethane nanofiber web (C) is bonded on the fabric (B) as shown in FIG.
도 3은 본 발명에 따른 투습방수원단의 단면 모식도이다.3 is a schematic cross-sectional view of the moisture-proof waterproof fabric according to the present invention.
상기 원단(B)은 합성섬유 원단인 것이 바람직하며, 구체적인 예로는 폴리아미드 직물, 폴리에스테르 직물 등이다. 그러나, 본 발명에서는 상기 원단(B)의 종류를 특별하게 한정하는 것은 아니다.The fabric (B) is preferably a synthetic fiber fabric, specific examples are polyamide fabric, polyester fabric and the like. However, in the present invention, the type of the fabric (B) is not particularly limited.
상기 접착제는 열경화성 핫-멜트 수지 또는 수분 반응형 폴리우레탄 수지 등으로, 형태가 분말상인 것이 작업성 개선과 원단(A) 상에 나노섬유 웹(C)을 부분적으로 접착하는데 보다 바람직하다.The adhesive is a thermosetting hot-melt resin or a moisture-reactive polyurethane resin or the like, and the powder form is more preferable for improving workability and partially bonding the nanofiber web (C) onto the fabric (A).
본 발명에 따른 투습방수원단(A)을 제조하는 방법 중 일례를 살펴보면, 앞에서 설명한 원단(B) 상에 접착제를 도포 또는 분산되게 스프레이(Spray)한 다음 앞에서 설명한 전기방사 방식으로 제조한 폴리우레탄 나노섬유 웹(C)을 접착제가 도포 또는 스프레이된 원단(B) 위에 겹쳐지게 올려준 다음, 이들을 열로울러 등으로 가열, 압착하여 투습방수원단(A)을 제조할 수 있다.Looking at one example of a method for producing a moisture-permeable waterproof fabric (A) according to the present invention, after spraying (Spray) to apply or disperse the adhesive on the fabric (B) described above, the polyurethane nano-manufactured by the electrospinning method described above The fiber web (C) may be placed on the fabric (B) coated or sprayed with an adhesive, and then heated and compressed using a heat roller or the like to prepare a moisture-permeable waterproof fabric (A).
본 발명에 다른 투습방수원단(A)은 ISO 811 방법으로 측정한 내수압이 5,000~15,000mm H2O이고, KS K 0594 방법으로 측정한 투습도가 5,000~15,000g/㎡·24시간이고, ASTM D 2724 방법으로 측정한 박리강도가 200~1,000g/㎝ 보다 바람직 하기로는 400~600g/㎝ 이다.According to the present invention, the water-permeable waterproof fabric (A) has a water pressure of 5,000 to 15,000 mm H 2 O measured by the ISO 811 method, and a water vapor transmission rate of 5,000 to 15,000 g /
본 발명에 따른 폴리우레탄 나노섬유 웹(C)은 상온에서의 수축율이 낮아 이를 원단(B) 상에 접착하는 공정을 용이하게 한다.Polyurethane nanofiber web (C) according to the invention has a low shrinkage at room temperature to facilitate the process of bonding it on the fabric (B).
본 발명에 따른 투습방수원단은 상온에서 수축율이 낮은 상기 폴리우레탄 나노섬유 웹을 포함하여 사용 중 수축이나 변형이 적고, 투습도와 내수압이 뛰어나 캐쥬얼복 및 스포츠복 제조용 소재로 유용하다.Water-permeable waterproof fabric according to the present invention, including the polyurethane nanofiber web with a low shrinkage at room temperature, less shrinkage or deformation during use, excellent moisture permeability and water pressure is useful as a material for manufacturing casual clothes and sports clothes.
이하, 실시예를 통하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail through examples.
그러나, 하기 실시예는 본 발명의 일례를 나타내는 것으로서, 본 발명의 보호범위가 하기 실시예로만 한정되는 것은 아니다.However, the following examples show one example of the present invention, and the protection scope of the present invention is not limited only to the following examples.
실시예Example 1 One
쇼어(A) 경도가 80이고, 분자량이 25,000인 열가소성 폴리우레탄 수지를 디메틸포름아미드에 15%(w/w)의 농도로 용해시켜 제1방사용액을 제조하였다.A first spinning solution was prepared by dissolving a thermoplastic polyurethane resin having a Shore (A) hardness of 80 and a molecular weight of 25,000 in a concentration of 15% (w / w) in dimethylformamide.
한편, 습기경화형 폴리우레탄 수지를 디메틸포름아미드 12%(w/w) 농도로 용해시켜 제2방사용액을 제조하였다.On the other hand, the moisture-curable polyurethane resin was dissolved at a concentration of 12% (w / w) dimethylformamide to prepare a second spinning solution.
상기 제1방사용액과 제2방사용액을 도 2에 도시된 전기방사장치의 계량펌 프(2)를 통해 60,000볼트(V)의 전압이 걸려있는 서로 다른 노즐(3)들을 통해 60,000볼트(V)의 전압이 걸려있는 컬렉터(4) 상에 각각 전기방사하여 평균직경이 400㎚인 나노섬유들이 적층되어 단위면적당 무게가 6.5g/㎡인 폴리우레탄 나노섬유 웹(C)을 제조하였다.60,000 volts (V) through the
한편, 나일론 원단(B) 상에 수분 반응형 폴리우레탄 접착제를 도포한 다음, 여기에 앞에서 제조한 나노섬유 웹(C)을 위치시킨 후, 이들을 150℃의 가열로울러들 사이를 통과시키면서 가열, 압착하여 투습방수원단(A)을 제조하였다.On the other hand, after applying the moisture-responsive polyurethane adhesive on the nylon fabric (B), and placed the nanofiber web (C) prepared before, and heated and pressed while passing them between the heating roller at 150 ℃ The waterproof moisture-proof fabric (A) was prepared.
제조된 폴리우레탄 나노섬유 웹(C)과 투습방수원단(A)의 각종 물성을 평가한 결과는 표 1과 같았다.The results of evaluating various physical properties of the prepared polyurethane nanofiber web (C) and the moisture-permeable waterproof fabric (A) were as shown in Table 1.
비교실시예Comparative Example 1 One
쇼어(A) 경도가 80이고, 분자량이 25,000인 열가소성 폴리우레탄 수지를 디메틸포름아미드에 15%(w/w)의 농도로 용해시켜 방사용액을 제조하였다.A spinning solution was prepared by dissolving a thermoplastic polyurethane resin having a Shore (A) hardness of 80 and a molecular weight of 25,000 in dimethylformamide at a concentration of 15% (w / w).
상기 방사용액을 도 2에 도시된 전기방사장치의 계량펌프(2)를 통해 60,000볼트(V)의 전압이 걸려있는 노즐(3)을 통해 60,000볼트(V)의 전압이 걸려있는 컬렉터(4) 상에 전기방사하여 평균직경이 400㎚인 나노섬유들이 적층되어 단위면적당 무게가 6.5g/㎡인 폴리우레탄 나노섬유 웹(C)을 제조하였다.Collector 4, the voltage of 60,000 volts (V) through the
한편, 나일론 원단(B) 상에 수분 반응형 폴리우레탄 접착제를 도포한 다음, 여기에 앞에서 제조한 나노섬유 웹(C)을 위치시킨 후, 이들을 150℃의 가열로울러들 사이를 통과시키면서 가열, 압착하여 투습방수원단(A)을 제조하였다.On the other hand, after applying the moisture-responsive polyurethane adhesive on the nylon fabric (B), and placed the nanofiber web (C) prepared before, and heated and pressed while passing them between the heating roller at 150 ℃ The waterproof moisture-proof fabric (A) was prepared.
제조된 폴리우레탄 나노섬유 웹(C)과 투습방수원단(A)의 각종 물성을 평가한 결과는 표 1과 같았다.The results of evaluating various physical properties of the prepared polyurethane nanofiber web (C) and the moisture-permeable waterproof fabric (A) were as shown in Table 1.
(A)의 물성Breathable waterproof fabric
Physical property of (A)
표 1에서 내수압 ISO 811 방법으로 측정한 값이고, 투습도는 KS K 0594 방법으로 측정한 값이고, 박리강도는 ASTM D 2724 방법으로 측정한 값이다.In Table 1, the water pressure was measured by ISO 811 method, the moisture permeability was measured by KS K 0594 method, and the peel strength was measured by ASTM D 2724 method.
또한, 폭방향 수축율 및 길이방향 수축율은 기재에서 분리되기 이전 상태에서 측정한 폴리우레탄 나노섬유 웹의 길이(L0)와 기재에서 분리 후 무장력하에서 12시간 동안 방치한 다음 측정한 폴리우레탄 나노섬유 웹의 길이(L1)을 각각 구한 다음, 이들을 아래계산식에 대입하여 계산한다.In addition, the widthwise shrinkage rate and the longitudinal shrinkage rate of the polyurethane nanofiber web measured before the separation from the substrate (L0) and after separation from the substrate and left for 12 hours under no tension after the measurement of the polyurethane nanofiber web The lengths L1 are obtained and calculated by substituting them into the following equation.
도 1은 본 발명에 따른 폴리우레탄 나노섬유 웹(C) 표면의 전자현미경 사진.1 is an electron micrograph of the surface of the polyurethane nanofiber web (C) according to the present invention.
도 2는 본 발명에 따른 폴리우레탄 나노섬유 웹(C)을 전기방사 방식으로 제조하는 공정 개략도.Figure 2 is a process schematic diagram of producing a polyurethane nanofiber web (C) according to the present invention by an electrospinning method.
도 3은 본 발명에 따른 투습방수원단의 단면 모식도.Figure 3 is a schematic cross-sectional view of the waterproof waterproof fabric according to the present invention.
* 도면 중 주요부분에 대한 부호설명* Code description for main parts of the drawings
A : 투습방수원단 B : 원단A: breathable waterproof fabric B: fabric
C : 나노섬유 웹 D : 접착부분C: Nanofiber web D: Bonding part
1 : 방사액 주탱크 2 : 계량펌프1: spinning liquid main tank 2: metering pump
3 : 노즐 4 : 컬렉터3: nozzle 4: collector
5 : 전압전달로드 6 : 전압발생장치5: voltage transfer rod 6: voltage generator
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| KR1020080055141A KR101106679B1 (en) | 2008-06-12 | 2008-06-12 | Polyurethane nano fiber web and water-proof/moisture-permeable fabric comprising the same |
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| KR1020080055141A KR101106679B1 (en) | 2008-06-12 | 2008-06-12 | Polyurethane nano fiber web and water-proof/moisture-permeable fabric comprising the same |
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| KR20090129063A KR20090129063A (en) | 2009-12-16 |
| KR101106679B1 true KR101106679B1 (en) | 2012-01-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150020991A (en) | 2013-08-19 | 2015-02-27 | 주식회사 아모그린텍 | Breathable and Waterproof Fabric and Manufacturing Method thereof |
| KR20160078313A (en) | 2014-02-26 | 2016-07-04 | 주식회사 아모그린텍 | Breathable and waterproof fabric |
| US10562267B2 (en) | 2014-12-18 | 2020-02-18 | Amogreentech Co., Ltd. | Waterproof and moisture permeable fabric, and manufacturing method therefor |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101319541B1 (en) * | 2012-08-21 | 2013-10-18 | (주)우리나노필 | Method for manufacturing vapor-permeable and waterproof sheet |
| KR20160029821A (en) * | 2013-07-05 | 2016-03-15 | 더 노스 훼이스 어패럴 코오포레이션 | Forcespinning of fibers and filaments |
| EP3747301A1 (en) | 2014-11-10 | 2020-12-09 | The North Face Apparel Corp. | Footwear and other articles formed by jet extrusion processes |
| CN115262089A (en) * | 2022-08-06 | 2022-11-01 | 安徽东锦服饰有限公司 | Production process of waterproof and moisture permeable composite fabric |
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| KR20070073850A (en) * | 2004-11-02 | 2007-07-10 | 킴벌리-클라크 월드와이드, 인크. | Gradient nanofiber materials and methods for making same |
| KR20070109001A (en) * | 2006-05-09 | 2007-11-15 | 정지수 | Method for producing a polyurethane resin film |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070073850A (en) * | 2004-11-02 | 2007-07-10 | 킴벌리-클라크 월드와이드, 인크. | Gradient nanofiber materials and methods for making same |
| KR20070109001A (en) * | 2006-05-09 | 2007-11-15 | 정지수 | Method for producing a polyurethane resin film |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150020991A (en) | 2013-08-19 | 2015-02-27 | 주식회사 아모그린텍 | Breathable and Waterproof Fabric and Manufacturing Method thereof |
| KR20160072086A (en) | 2013-08-19 | 2016-06-22 | 주식회사 아모그린텍 | Breathable and Waterproof Fabric and Manufacturing Method thereof |
| KR20160078313A (en) | 2014-02-26 | 2016-07-04 | 주식회사 아모그린텍 | Breathable and waterproof fabric |
| KR20170026420A (en) | 2014-02-26 | 2017-03-08 | 주식회사 아모그린텍 | Method of manufacturing Breathable and waterproof fabric |
| US10562267B2 (en) | 2014-12-18 | 2020-02-18 | Amogreentech Co., Ltd. | Waterproof and moisture permeable fabric, and manufacturing method therefor |
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| Publication number | Publication date |
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| KR20090129063A (en) | 2009-12-16 |
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