KR200363401Y1 - A dry-porous type moist peameable and water proof fabric - Google Patents
A dry-porous type moist peameable and water proof fabric Download PDFInfo
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- KR200363401Y1 KR200363401Y1 KR20-2004-0017136U KR20040017136U KR200363401Y1 KR 200363401 Y1 KR200363401 Y1 KR 200363401Y1 KR 20040017136 U KR20040017136 U KR 20040017136U KR 200363401 Y1 KR200363401 Y1 KR 200363401Y1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
본 고안은 건식 다공형 투습 방수포에 관한 것으로서, 섬유기재(A)상에 유기용제 분산형 발수제를 함유하며 유중 수분산형(W/O형) 에멀젼형 폴리우레탄 수지를 주성분으로 하는 건식 다공형 필름(B)이 양말단에 이소시아네이트기를 갖는 반응형 폴리우레탄 접착제(C)에 의해 라미네이팅된 것을 특징으로 한다.The present invention relates to a dry porous vapor permeable tarpaulin, comprising a organic solvent dispersion type water repellent on the fiber base (A) and a dry porous film mainly composed of a water-in-oil type (W / O type) emulsion type polyurethane resin in water ( B) is laminated with a reactive polyurethane adhesive (C) having an isocyanate group at the sock end.
본 고안은 내수압과 투습도가 동시에 우수하며, 박리강도도 향상되어 스포츠용 의류 제조등에 유용하다.The present invention is excellent in water pressure and moisture permeability at the same time, the peel strength is also improved, and is useful for manufacturing sports clothing.
Description
본 고안은 내수압, 투습도 및 박리강도가 우수한 건식 다공형 투습방수포에 관한 것이다. 투습방수 원단은 스포츠웨어, 등산복 및 스키웨어 등과 같이 비교적 가혹한 기상조건 하에서 격렬한 운동을 할 때 착용하는 의류용 원단으로 사용되고 있다.The present invention relates to a dry porous permeable waterproof fabric excellent in water pressure, moisture permeability and peel strength. Moisture-proof waterproof fabric is used as a fabric for clothing worn during intense exercise under relatively harsh weather conditions, such as sportswear, mountaineering clothes and skiwear.
따라서 투습방수 원단에는 강우시 빗방울을 차단함은 물론 저온 환경에서는 의복내 체온을 유지시켜 주고, 격렬한 운동에 따른 고온 환경에서는 몸으로부터 발한된 땀을 방출하여 의복내 온도를 일정하게 유지시켜 줌으로서 항상 쾌적한 착용감을 발현할 수 있는 고내수압과 고투습도의 기능이 요구되고 있다.Therefore, the moisture-permeable waterproof fabric not only blocks raindrops during rainfall, but also maintains the body temperature in clothes in low temperature environments, and maintains the temperature in clothes by releasing sweat emitted from the body in high temperature environments following intense exercise. The function of high water pressure and high moisture permeability which can express a comfortable wearing feeling is calculated | required.
이와 같은 투습방수포를 제조하는 종래기술로서는 (ⅰ)폴리우레탄과 유기용제인 디메틸포름아마이드를 혼합하여 제조한 수지조성물을 원단상에 일정한 두께로 코팅한 후, 이들을 물속으로 통과시키므로서 원단상에 미세한 기공을 갖는 폴리우레탄 코팅층을 형성시키는 습식공법과, (ⅱ)폴리우레탄을 메틸에틸케톤, 톨루엔, 아세톤, 이소프로필알코올 등 휘발성이 강한 유기용제에 용해시켜서 제조한 수지조성물을 원단상에 일정한 두께로 코팅한 후 열처리하여 휘발성 유기용제를 휘발시키므로서 원단상에 균질의 폴리우레탄 필름층을 형성시키는 건식공법이 있다.As a conventional technique for manufacturing such a moisture-permeable waterproof foam (i) a resin composition prepared by mixing polyurethane and dimethylformamide, an organic solvent, is coated on the fabric to a certain thickness, and then passed through the water to make a fine fabric on the fabric. A wet method for forming a polyurethane coating layer having pores, and (ii) a resin composition prepared by dissolving polyurethane in a highly volatile organic solvent such as methyl ethyl ketone, toluene, acetone, isopropyl alcohol, etc. There is a dry method of forming a homogeneous polyurethane film layer on the fabric by volatilizing the volatile organic solvent by heat treatment after coating.
상기의 습식공법 및 건식공법은 원단상에 직접 폴리우레탄 수지조성물을 도포하는 방법이므로 수지용액이 원단 내부로 침투하여 제품의 촉감이 딱딱해질 우려가 있고, 투습성, 내수성 등의 기능성 발현에도 한계가 있었다. 따라서 최근에는 기능성 필름을 별도로 제조한 후 접착제를 사용하여 원단과 합포하는 방식인 라미네이팅 공법이 투습방수포의 제조에 많이 적용되고 있다.Since the wet method and the dry method apply a polyurethane resin composition directly onto the fabric, the resin solution may penetrate into the fabric, resulting in stiffness of the product, and there is a limit in the functional expression such as moisture permeability and water resistance. . Therefore, in recent years, a laminating method, which is a method of fabricating a functional film separately and then combining it with a fabric using an adhesive, has been applied to a lot of moisture-permeable waterproof fabric.
구체적인 예를 살펴보면 먼저, 폴리우레탄을 메틸에틸케톤, 톨루엔, 아세톤, 이소프로필알코올 등 휘발성이 강한 유기용제에 용해시켜서 제조한 수지조성물을한면이 매끈한 시트(종이, 필름, 직물 등) 상에 일정한 두께로 코팅한 후 열처리하여 휘발성 유기용제를 휘발시켜서 투습방수성을 갖는 폴리우레탄 필름을 제조한다.Looking at a specific example, first, a resin composition prepared by dissolving a polyurethane in a highly volatile organic solvent such as methyl ethyl ketone, toluene, acetone, isopropyl alcohol, etc. on a smooth sheet (paper, film, fabric, etc.) After coating with heat treatment to volatilize the volatile organic solvent to prepare a polyurethane film having moisture-permeable waterproof.
다음으로는 여기에 폴리우레탄 접착제 성분을 유기용제, 이소시아네이트계 경화제와 혼합시켜서 제조한 접착수지를 나이프로 균일하게 전면도포하거나, 그라비아를 사용하여 점도포한 후, 원단과 합포하고 숙성시켜서 투습방수포를 제조해 오고 있다.Next, the adhesive resin prepared by mixing a polyurethane adhesive component with an organic solvent and an isocyanate curing agent is uniformly coated with a knife or uniformly coated with a gravure, then mixed with a fabric and aged to prepare a moisture-permeable waterproof foam. I have been manufacturing.
그러나 상기 라미네이팅 공법은 저점도의 접착제가 원단내부로 침투하여 촉감을 저해할 가능성이 있으며, 기능성 필름과 원단과의 충분한 접착력을 발휘하기 위해서는 긴 경화시간이 필요하기 때문에 작업속도가 느리고, 생산성이 저하된다. 또한 작업공정 중 접착제 내에 포함된 이소시아네이트계 경화제에 의한 경화반응이 계속되기 때문에 작업시간 중 접착제의 점도가 변화하여 접착력의 불균일을 초래할 수 있다. 이에 따라 최종제품이 열, 한냉상태, 용제, 세탁 등에 대한 내구성(박리강도)이 나빠질 수 있다.However, in the laminating method, the low viscosity adhesive may penetrate into the fabric and impair the touch. The work speed is slow and productivity is lowered because a long curing time is required to exhibit sufficient adhesion between the functional film and the fabric. do. In addition, since the curing reaction is continued by the isocyanate-based curing agent contained in the adhesive during the work process, the viscosity of the adhesive may change during the working time may lead to non-uniform adhesion. As a result, the end product may have poor durability (peel strength) against heat, cold state, solvent, and washing.
한편, 종래기술에서는 건식 다공형 투습방수포의 내수압을 향상시킬 목적으로 수분산형 발수제를 사용하기 때문에 상기 발수제는 W/O형 에멀젼에서 유중에 분산된 물입자와 혼합되어 공존하게 된다. 따라서 코팅후 건조 공정에서 유기용제가 먼저 기화된 후 계속해서 물이 수증기 상태로 증발하게 되면 상기 발수제는 미세한 기공 주변에 집중적으로 존재하게 된다.On the other hand, in the prior art, since a water-dispersible water repellent is used for the purpose of improving the water pressure of the dry porous moisture-permeable waterproof fabric, the water repellent is mixed with water particles dispersed in oil in a W / O emulsion. Therefore, when the organic solvent is first vaporized in the drying process after coating and water is continuously evaporated in the water vapor state, the water repellent is concentrated around the fine pores.
그 결과 상기 발수제는 상대적으로 밀도가 높은 폴리우레탄 필름 전체에 골고루 분산되지 않아 필름 전체의 소수화가 곤란하게 된다.As a result, the water repellent is not evenly dispersed throughout the relatively high density polyurethane film, making it difficult to hydrophobize the entire film.
이와 같은 원인으로 종래 기술에 의해 제조된 건식 다공형 투습 방수포의 내수압은 1,500~2,500㎜ H2O 수준에 불과한 문제가 있었다.For this reason, the water pressure of the dry porous permeable tarp manufactured by the prior art had a problem of only 1,500 to 2,500 mm H 2 O level.
본 고안은 이상에서 설명한 종래 기술의 문제점들을 해결하므로서 투습성과 방수성이 동시에 우수하고, 박리강도도 양호한 건식 다공형 투습방수포를 제공하고자 한다.The present invention is to solve the problems of the prior art described above, to provide a porous porous moisture-proof foam having excellent moisture permeability and waterproofness, and also good peel strength.
도 1은 본 고안의 단면 확대도.1 is an enlarged cross-sectional view of the present invention.
도 2는 본 고안을 제조하는 공정 개략도.2 is a process schematic diagram of manufacturing the present invention.
※도면중 주요부분에 대한 부호설명※ Code explanation for main part of drawing
A : 섬유기재 2 : 가열 가능한 그라비아롤A: Fiber base material 2: Heatable gravure roll
3 : 카운터롤 4 : 가열 가능한 챔버형 독터브레이드3: counter roll 4: heatable chamber-type doctor blade
B : 건식 다공형 필름 6 : 적외선 가열기B: dry porous film 6: infrared heater
7 : 합포롤 8 : 챔버(Chamber)7: composite roll 8: chamber
C : 반응형 폴리우레탄 접착제C: Responsive Polyurethane Adhesive
이와 같은 과제들을 달성하기 위한 본 고안의 건식 다공형 투습방수포는, 섬유기재(A)상에 유기용제 분산형 발수제를 함유하며 유중 수분산형(W/O형) 에멀젼형 폴리우레탄 수지를 주성분으로 하는 건식 다공형 필름(B)이 양말단에 이소시아네이트기를 갖는 반응형 폴리우레탄 접착제(C)에 의해 라미네이팅된 것을 특징으로 한다.In order to achieve the above problems, the dry porous moisture-permeable foam of the present invention contains an organic solvent-dispersed water repellent agent on a fiber base (A), and has a water-in-oil (W / O type) emulsion type polyurethane resin as a main component. The dry porous film (B) is characterized in that it is laminated by a reactive polyurethane adhesive (C) having an isocyanate group at the sock end.
이하, 첨부한 도면등을 통하여 본 고안을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 고안의 단면 확대도이다.1 is an enlarged cross-sectional view of the present invention.
본 고안은 도 1과 같이 섬유기재(A)상에 건식 다공형 필름(B)이 양말단에 이소시아네이트기를 갖는 반응형 폴리우레탄 접착제(C)에 의해 라미네이팅 된 구조를 갖는다.The present invention has a structure in which the dry porous film (B) on the fiber substrate (A) is laminated by a reactive polyurethane adhesive (C) having an isocyanate group at the sock end as shown in FIG. 1.
상기 건식 다공형 필름(B)은 유기용제 분산성 발수제를 함유하고 유중 수분산성(W/O형) 에멀젼형 폴리우레탄 수지를 주성분으로 하는 조성물로 구성된다.The dry porous film (B) is composed of a composition containing an organic solvent dispersible water repellent and containing a water-dispersible water-in-oil (W / O type) emulsion type polyurethane resin as a main component.
보다 구체적으로, 상기의 다공형 필름(B)은 유중 수분산성(W/O형) 에멀젼형 폴리우레탄 수지 100중량부, 메틸에틸케톤/톨루엔 혼합용매 20~50중량부, 헥사메틸렌 디이소시아네이트(경화제) 1~5중량부, 유기용제 분산형 발수제 1~5중량부 및 물/메틸에틸케톤 혼합물 31~70중량부로 조성되는 것이 바람직하다.More specifically, the porous film (B) is 100 parts by weight of water-dispersible (W / O) emulsion type polyurethane resin in water, 20-50 parts by weight of methyl ethyl ketone / toluene mixed solvent, hexamethylene diisocyanate (curing agent) ) 1 to 5 parts by weight, organic solvent dispersion type water repellent 1 to 5 parts by weight and water / methyl ethyl ketone mixture is preferably composed of 31 to 70 parts by weight.
유기용제 분산성 발수제는 유기용제에 플루오로카본이 분산된 발수제이다.Organic solvent dispersible water repellent is a water repellent in which fluorocarbon is dispersed in an organic solvent.
건식 다공형 필름(B)은 상기의 폴리우레탄 수지 조성물을 이형지상에 코팅, 건조한 다음 이형지를 박리하는 방법으로 제조할 수 있다.The dry porous film (B) may be prepared by coating the polyurethane resin composition on a release paper, drying, and then peeling off the release paper.
한편, 양말단에 이소시아네이트기를 갖는 상기 반응형 폴리우레탄 접착제(C)는 하이드록시말단기(Hydroxyl end group)를 함유하는 폴리올(Polyol)과 양말단에 이소시아네이트기를 함유하는 화합물을 반응시켜 제조되며, 폴리올 성분에 비해 이소시아네이트 성분을 과량으로 반응시켜서 최종제품의 기본구조가 양말단에 이소시아네이트기를 가지도록 한 열가소성 폴리우레탄 이다.On the other hand, the reactive polyurethane adhesive (C) having an isocyanate group at the sock end is prepared by reacting a polyol containing a hydroxyl end group with a compound containing an isocyanate group at the sock end, and a polyol It is a thermoplastic polyurethane in which the isocyanate component is excessively reacted compared to the component so that the basic structure of the final product has an isocyanate group at the sock end.
이들 반응형 폴리우레탄 접착제(C)를 라미네이팅 공정에 적용할 경우 양말단의 이소시아네이트가 원단, 기능성 필름 및 공기중에 함유된 소량의 수분과 반응하여 열경화성 물질로 변화되므로써 강인한 접착력(박리강도)을 발휘하게 된다. 반응형 폴리우레탄 접착제(C)를 제조할 때 사용하는 폴리올 성분 및 이소시아네이트 성분은 통상의 폴리우레탄 합성에 쓰여지는 것을 사용할 수 있다.When the reactive polyurethane adhesive (C) is applied to the laminating process, the isocyanate at the end of the socks reacts with a small amount of moisture contained in the fabric, the functional film, and the air to change into a thermosetting material, thereby exhibiting strong adhesive strength (peel strength). do. As the polyol component and the isocyanate component used when producing the reactive polyurethane adhesive (C), those used for ordinary polyurethane synthesis can be used.
본 고안은 도 2와 같은 공정을 거쳐 제조 할 수 있다.The present invention can be manufactured through the process as shown in FIG.
구체적으로, 상기 반응형 폴리우레탄 접착제를 가열가능한 호퍼(Hopper)에서 용융시킨 후 가열가능한 튜브를 통하여 가열장치가 부착된 챔버(Chamber)형 독터브레이드 (Doctor blade)로 이송시킨다. 챔버형 독터브레이드로 부터 일정한 무늬가 음각되어 있는 그라비아롤(Gravure roll) 위로 반응형 폴리우레탄 접착제를 적당량 공급하여 음각된 무늬내부로 접착제를 채운 후 이를 섬유기재(A) 상으로 전사시킨다.Specifically, the reactive polyurethane adhesive is melted in a heatable hopper and then transferred through a heatable tube to a chamber-type Doctor blade with a heater. A moderate amount of reactive polyurethane adhesive is supplied from the chamber-type doctor blade onto the gravure roll, which is engraved with a certain pattern, and the adhesive is filled into the engraved pattern and then transferred onto the fiber substrate (A).
전사된 반응형 폴리우레탄 접착제의 양은 5~50g/㎡인 것이 바람직 하다. 전사된 양이 너무 많으면 촉감이 저하되고 너무 적으면 접착력이 나빠진다.The amount of the transferred reactive polyurethane adhesive is preferably 5-50 g / m 2. Too large a transfer amount deteriorates the touch, and too little transfers poor adhesion.
다음으로 반응형 폴리우레탄 접착제가 전사된 섬유기재(A)와 건식 다공형 필름(B)을 합포롤(7)에서 합포시킨 후 적외선 가열기(6)로 예비가열하여 본 고안을 제조한다.Next, the fibrous base (A) and the dry porous film (B), to which the reactive polyurethane adhesive is transferred, are combined with the polyfoam roll 7 and then preheated with an infrared heater 6 to manufacture the present invention.
섬유기재(A)로는 나일론 직물 및 편물, 폴리에스테르 직물 및 편물, 면 직물 및 편물, 그리고 이들 섬유들의 혼방직물 및 편물을 사용할 수 있다.As the fiber base (A), nylon fabrics and knits, polyester fabrics and knits, cotton fabrics and knits, and blends and knits of these fibers can be used.
상술한 방법으로 섬유기재(A)상에 도포된 반응형 폴리우레탄 접착제(C)는 건식 다공형 필름과 합포된 후 냉각되면서 필름 및 공기중에 포함된 소량의 수분과 반응하여 3차원으로 가교된 열경화성 물질로 변화되면서 강인하고 내구성이 매우 우수한 접착력(박리강도)을 발휘하게 된다.The reactive polyurethane adhesive (C) coated on the fiber substrate (A) by the above-described method is thermoset crosslinked in three dimensions by reacting with a small amount of water contained in the film and air while being cooled after being combined with a dry porous film. As it is transformed into a material, it shows strong adhesion and peel strength.
이상에서 설명한 바와 같이 본 고안은 섬유기재(A)와 건식 다공형 필름(B)이 양말단에 이소시아네이트기를 갖는 반응형 폴리우레탄 접착제(C)에 의해 라미네이팅되기 때문에 접착력(박리강도)이 500g/㎝ 이상이다.As described above, the present invention has an adhesive force (peel strength) of 500 g / cm because the fiber base material (A) and the dry porous film (B) are laminated by the reactive polyurethane adhesive (C) having an isocyanate group at the sock end. That's it.
또한, 본 고안은 건식 다공형 필름(B)내에 유기용제 분산형 발수제가 함유되어 있기 때문에 투습도가 6,000g/㎡ㆍ24시간 이상이고, 내수압이 4,000㎜ H2O 이상이다.In addition, the present invention has a water vapor transmission rate of 6,000 g / m 2 · 24 hours or more and a water resistance of 4,000 mm H 2 O or more because the organic solvent dispersion type water repellent agent is contained in the dry porous film (B).
본 고안에 있어서 투습도, 내수압 및 접착력 측정방법은 아래와 같다.In the present invention, the method of measuring moisture permeability, water pressure and adhesive strength is as follows.
·투습도Moisture permeability
JIS-L 1096 방법으로 측정한다.It measures by JIS-L 1096 method.
·내수압Water pressure
JIS-L 1099 방법으로 측정한다.It measures by JIS-L 1099 method.
·접착력Adhesion
폭 2cm, 길이 20cm의 투습방수포를 시료로 채택한다. 상기 시료의 투습성 필름층에 접착테이프를 부착하고 섬유기재층을 조금 박리한다. 상기 접착테이프와 박리된 섬유기재층 일부분을 인스트롱 양단에 물린다음, 섬유기재층과 투습방수성 필름층을 박리하는데 걸리는 하중을 측정한다. 측정된 하중값을 폭(2cm)로 나눈값을 접착력(kg/cm)로 한다.A moisture-repellent waterproof cloth 2cm wide and 20cm long is adopted as a sample. An adhesive tape is attached to the moisture-permeable film layer of the sample, and the fiber base layer is peeled off a little. The adhesive tape and the part of the peeled fiber base layer are bitten at both ends of the instron, and the load applied to the peeled fiber base layer and the moisture-permeable waterproof film layer is measured. The value obtained by dividing the measured load value by the width (2 cm) is taken as the adhesive force (kg / cm).
본 고안의 건식 다공형 투습방수포는 투습도와 내수압이 동시에 우수하고, 박리강도도 양호하여 스포츠 의류용 소재로 특히 유용하다.Dry porous permeable waterproof fabric of the present invention is excellent in moisture permeability and water pressure at the same time, good peel strength is particularly useful as a material for sports clothes.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0017136U KR200363401Y1 (en) | 2004-06-18 | 2004-06-18 | A dry-porous type moist peameable and water proof fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0017136U KR200363401Y1 (en) | 2004-06-18 | 2004-06-18 | A dry-porous type moist peameable and water proof fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR200363401Y1 true KR200363401Y1 (en) | 2004-10-01 |
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ID=49350537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20-2004-0017136U KR200363401Y1 (en) | 2004-06-18 | 2004-06-18 | A dry-porous type moist peameable and water proof fabric |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200363401Y1 (en) |
-
2004
- 2004-06-18 KR KR20-2004-0017136U patent/KR200363401Y1/en not_active IP Right Cessation
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