KR102151967B1 - Eco-friendly water-repellent synthetic leather using non-fluorine water repellent - Google Patents
Eco-friendly water-repellent synthetic leather using non-fluorine water repellent Download PDFInfo
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- KR102151967B1 KR102151967B1 KR1020180136394A KR20180136394A KR102151967B1 KR 102151967 B1 KR102151967 B1 KR 102151967B1 KR 1020180136394 A KR1020180136394 A KR 1020180136394A KR 20180136394 A KR20180136394 A KR 20180136394A KR 102151967 B1 KR102151967 B1 KR 102151967B1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using knitted fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using flocked webs or pile fabrics upon which a resin is applied; Teasing, raising web before resin application
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/142—Hydrophobic
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
본 발명은 비불소 발수제를 이용한 친환경 발수 합성 피혁에 관한 것으로, 친환경적이고 인체에 무해함과 동시에 발수성을 극대화 시킬 수 있도록 폴리에스테르 트리코트 기모 원단층, 상기 기모원단층에 수분산 폴리우레탄 및 비불소 발수제가 포함된 함침용 발수 혼합액이 함침되어 형성된 비불소 발수 함침층 및 상기 기모 원단층 및 상기 비불소 발수 함침층의 표면에 코팅용 발수 혼합액이 코팅되어 형성되는 은층을 포함하며, 상기 비불소 발수 함침층 및 상기 은층은 90℃~110℃에서 2 내지 4분간 열풍 건조된 후 140℃~150℃에서 4 내지 6분 동안 경화기에서 경화되는 것을 특징으로 한다.The present invention relates to an eco-friendly water-repellent synthetic leather using a non-fluorine water-repellent agent, and is eco-friendly and harmless to the human body, and at the same time, a polyester tricot brushed fabric layer, a water-dispersible polyurethane and non-fluorine in the brushed fabric layer, to maximize water repellency. A non-fluorine water-repellent impregnation layer formed by impregnating a water-repellent mixture for impregnation containing a water-repellent agent, and a silver layer formed by coating a water-repellent mixture for coating on the surfaces of the brushed fabric layer and the non-fluorine-free water-repellent impregnation layer, and the non-fluorine water-repellent The impregnated layer and the silver layer are hot air dried at 90°C to 110°C for 2 to 4 minutes and then cured in a curing machine at 140°C to 150°C for 4 to 6 minutes.
Description
본 발명은 친환경 발수 합성 피혁에 관한 것으로, 비불소 발수 혼합액을 트리코트 기모원단에 함침 시킬 뿐만 아니라, 비불소 발수제를 코팅한 후 건조 및 경화시킴으로써 원단 내부의 위킹(wicking)발수성과 원단 표면의 스프레이(spary)발수성을 극대화시킬 수 있는 비불소 발수제를 이용한 친환경 발수 합성 피혁에 관한 것이다.The present invention relates to an eco-friendly water-repellent synthetic leather, not only impregnating a fluorine-free water-repellent mixture into a tricot brushed fabric, but also drying and curing after coating a non-fluorine water-repellent agent, thereby wicking water repellency inside the fabric and spraying the fabric surface. (spary) It relates to eco-friendly water-repellent synthetic leather using a fluorine-free water repellent that can maximize water repellency.
스웨이드 합성피혁은 주로 기모가 형성된 폴리에스테르 원단 상에 DMF(Dimethylformamide)나 유기용제가 혼합된 유성 폴리우레탄 수지를 함침 시킨 후에 맹글로 압착하고, 이를 DMF 20 내지 30% 농도 수중에서 응고하고 다시 깨끗한 물로 수세하고, 외관이 천연 스웨이드 가죽과 유사하도록 표면 처리하는 버핑 공정, 프린팅 고정 등 추가적인 공정을 통하여 제조된다. 이러한 제조방법은 응고 공정과 수세 공정을 수행하여 제조되는 습식 스웨이드 합성피혁을 제조하는 과정이며, 이러한 스웨이드는 외관 및 촉감이 뛰어나기 때문에 의류용, 신발용, 장갑용 등에 널리 이용되고 있다.Suede synthetic leather is mainly impregnated with DMF (Dimethylformamide) or an oily polyurethane resin mixed with an organic solvent on a brushed polyester fabric, then compressed with mangle, coagulated in DMF 20 to 30% concentration, and then again with clean water. It is manufactured through additional processes such as buffing process, printing fixing, etc., which is washed with water and surface-treated to resemble natural suede leather. This manufacturing method is a process of manufacturing a wet suede synthetic leather manufactured by performing a solidification process and a water washing process, and such suede is widely used for clothing, shoes, and gloves because of its excellent appearance and feel.
이러한 스웨이드 제작에 관련된 선행기술에는 대한민국 특허청에 출원된 출원번호 제10-2005-0123505호, 제10-2003-0006737호, 제10-2005-0123505호 등이 있다.Prior art related to the production of such suede includes application numbers 10-2005-0123505, 10-2003-0006737, 10-2005-0123505, etc. filed with the Korean Intellectual Property Office.
하지만, 이와 같은 방법으로 스웨이드를 제조할 경우, 공정이 복잡하며, 응고 공정과 수세 공정에서 추출되는 DMF에 의한 수질 오염의 문제가 있고, 근로자의 안전 문제 및 완제품에 잔존하는 DMF가 문제가 되고 있다.However, in the case of manufacturing suede in this way, the process is complicated, there is a problem of water pollution due to DMF extracted in the coagulation process and washing process, and there is a problem of worker safety and DMF remaining in the finished product. .
또한, 발수 스웨이드를 제조하고자 하는 경우, 스웨이드 제조 시, 폴리우레탄 수지에 비불소계 발수제를 첨가한 후, 이를 원단에 함침하여 사용하고 있어 환경오염 및 인체에 유해하다는 문제점이 있다.In addition, when a water-repellent suede is to be manufactured, a non-fluorine-based water-repellent is added to a polyurethane resin and then used by impregnating the fabric when suede is manufactured, so there is a problem of environmental pollution and harmful to the human body.
또한, 스웨이드 원단의 경우 표면에 공극이 다수 형성되어 있으며, 표면이 균일하지 않아 발수 처리액을 함침 및 코팅하여도 발수액이 원단 내부까지 고르게 코팅되기 어려우며, 표면에 균일한 발수층을 형성하기 어려우며, 이에 따라 우수한 발수성을 나타낼 수 없다는 문제점이 있다. In addition, in the case of suede fabric, a number of voids are formed on the surface, and the surface is not uniform, so it is difficult to evenly coat the water repellent liquid to the inside of the fabric even if impregnated and coated with the water repellent treatment liquid, and it is difficult to form a uniform water repellent layer on the surface. Accordingly, there is a problem that excellent water repellency cannot be exhibited.
본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로, 친환경적이고 인체에 무해한 비불소 발수제를 이용하여 친환경 발수 합성 피혁을 제시하는 데 그 목적이 있다.The present invention was conceived to solve the above problems, and an object thereof is to present an eco-friendly water-repellent synthetic leather using a non-fluorine water-repellent agent that is environmentally friendly and harmless to the human body.
또한, 트리코트 원단 내부 및 표면에 비불소 발수제가 균일한 발수층을 형성하여 발수성을 극대화할 수 있는 비불소 발수제를 이용한 친환경 발수 합성 피혁을 제시하는 데 그 목적이 있다. In addition, it is an object of the present invention to present an eco-friendly water-repellent synthetic leather using a non-fluorine water-repellent agent that can maximize water repellency by forming a uniform water-repellent layer on the inside and surface of the tricot fabric.
상기 목적을 달성하기 위한 본 발명에 따른 비불소 발수제를 이용한 친환경 발수 합성 피혁은 폴리에스테르 트리코트 기모 원단층, 상기 기모원단층에 수분산 폴리우레탄 및 비불소 발수제가 포함된 함침용 발수 혼합액이 함침되어 형성된 비불소 발수 함침층 및 상기 기모 원단층 및 상기 비불소 발수 함침층의 표면에 코팅용 발수 혼합액이 코팅되어 형성되는 은층을 포함하며, 상기 비불소 발수 함침층 및 상기 은층은 90℃~110℃에서 2 내지 4분간 열풍 건조된 후 140℃~150℃에서 4 내지 6분 동안 경화기에서 경화되는 것을 특징으로 한다.The eco-friendly water-repellent synthetic leather using a fluorine-free water repellent according to the present invention to achieve the above object is impregnated with a polyester tricot brushed fabric layer, and a water-repellent mixture for impregnation containing a water-dispersible polyurethane and a non-fluorine water repellent in the brushed fabric layer. And a silver layer formed by coating a water-repellent mixture for coating on the surface of the brushed fabric layer and the non-fluorine water-repellent impregnated layer, and the non-fluorine water-repellent impregnated layer and the silver layer are 90°C to 110 It characterized in that it is cured in a curing machine for 4 to 6 minutes at 140 ℃ ~ 150 ℃ after hot air drying for 2 to 4 minutes at ℃.
이때, 상기 함침용 발수 혼합액은 물 100중량부에 대하여, 상기 수분산 폴리우레탄 5 내지 15 중량부, 상기 비불소 발수제 3 내지 10 중량부, 수분산 가교제 0.3 내지 1 중량부, 수분산 경화제 0.3 내지 1 중량부를 포함하는 것을 특징으로 한다.At this time, the water-repellent mixture for impregnation is based on 100 parts by weight of water, 5 to 15 parts by weight of the water-dispersible polyurethane, 3 to 10 parts by weight of the non-fluorine water repellent, 0.3 to 1 part by weight of a water-dispersion crosslinking agent, and 0.3 to an aqueous dispersion curing agent. It characterized in that it contains 1 part by weight.
또한, 상기 코팅용 발수 혼합액은 물 100중량부에 대하여, 상기 수분산 폴리우레탄 15 내지 30 중량부, 상기 비불소 발수제 6 내지 20 중량부, 수분산 가교제 0.6 내지 2 중량부, 수분산 경화제 0.6 내지 2 중량부를 포함하는 것을 특징으로 한다. In addition, the water-repellent mixture for coating is based on 100 parts by weight of water, 15 to 30 parts by weight of the water-dispersible polyurethane, 6 to 20 parts by weight of the non-fluorine water repellent, 0.6 to 2 parts by weight of a water-dispersion crosslinking agent, 0.6 to water-dispersion hardener It characterized in that it contains 2 parts by weight.
그리고 상기 코팅용 발수 혼합액의 점도는 상기 함침용 발수 혼합액의 점도 보다 높은 것을 특징으로 한다.And the viscosity of the water-repellent mixture for coating is characterized in that higher than the viscosity of the water-repellent mixture for impregnation.
상술한 바와 같이 본 발명에 따르면, 본 발명에 따른 비불소 발수제를 이용한 친환경 발수 합성 피혁은 수분산 폴리우레탄, 비불소 발수제, 수분산 가교제, 수분산 경화제를 활용하여 발수액을 제조하므로 친환경적이고 인체에 무해하다는 이점이 있다. As described above, according to the present invention, the eco-friendly water-repellent synthetic leather using the non-fluorine water repellent according to the present invention uses water-dispersible polyurethane, non-fluorine water-repellent, water-dispersion crosslinking agent, and water-dispersion hardener to produce a water-repellent liquid, so it is environmentally friendly and human body It has the advantage of being harmless.
또한, 트리코트 기모원단에 비불소 발수 혼합액을 함침 및 코팅시키므로 내부 발수성(wicking) 및 표면 발수성(spray) 발수성이 모두 우수하다는 이점이 있다.In addition, since the tricot napped fabric is impregnated and coated with a non-fluorine water-repellent mixture, there is an advantage that both internal water repellency (wicking) and surface water repellency (spray) water repellency are excellent.
또한, 함침층 및 은층을 적절한 온도에서 경화시켜 은층을 균일하게 형성하고 있으므로 발수성을 극대화시킬 수 있다는 이점이 있다. In addition, since the silver layer is uniformly formed by curing the impregnated layer and the silver layer at an appropriate temperature, there is an advantage of maximizing water repellency.
도 1은 본 발명에 따른 비불소 발수제를 이용한 친환경 발수 합성 피혁의 단면 확대도.1 is an enlarged cross-sectional view of an eco-friendly water-repellent synthetic leather using a fluorine-free water repellent according to the present invention.
이하, 본 발명의 기술적 사상을 첨부된 도면을 사용하여 더욱 구체적으로 설명한다.Hereinafter, the technical idea of the present invention will be described in more detail using the accompanying drawings.
첨부된 도면은 본 발명의 기술적 사상을 더욱 구체적으로 설명하기 위하여 도시한 일예에 불과하므로 본 발명의 기술적 사상이 첨부된 도면의 형태에 한정되는 것은 아니다.The accompanying drawings are only an example shown to describe the technical idea of the present invention in more detail, so the technical idea of the present invention is not limited to the form of the accompanying drawings.
본 발명에 따른 비불소 발수제를 이용한 친환경 발수 합성 피혁은 기모 원단층, 비불소 발수 함침층 및 은층을 포함한다. Eco-friendly water-repellent synthetic leather using the fluorine-free water repellent according to the present invention includes a brushed fabric layer, a fluorine-free water-repellent impregnation layer, and a silver layer.
기모 원단층은 본 발명에 따른 합성 피혁의 기재가 되는 원단으로 폴리에스테르 트리코트 기모 원단인 것이 바람직하다.The brushed fabric layer is a fabric used as a base material for the synthetic leather according to the present invention, and is preferably a polyester tricot brushed fabric.
비불소 발수 함침층은 수분산 폴리우레탄 및 비불소 발수제가 포함된 함침용 발수 혼합액이 함침되어 형성되는 층이다. 기모원단의 경우, 내부에 공극이 다수 형성되어 있어 있으므로 기모원단의 내부 발수성을 구현하기 위해서는 이러한 함침층 형성이 필수적이다. The fluorine-free water-repellent impregnation layer is a layer formed by impregnating a water-dispersible polyurethane and a water-repellent mixture for impregnation containing a non-fluorine water-repellent agent. In the case of the raised fabric, since a number of voids are formed therein, it is necessary to form such an impregnated layer in order to realize the internal water repellency of the raised fabric.
이때, 함침용 발수 혼합액은 물 100중량부에 대하여, 수분산 폴리우레탄 5 내지 15 중량부, 비불소 발수제 3 내지 10 중량부, 수분산 가교제 0.3 내지 1 중량부, 수분산 경화제 0.3 내지 1 중량부를 포함한다. 이때 수분산 가교제 및 수분산 경화제는 모두 우레탄계 가교제 및 우레탄계 경화제를 사용하는 것이 바람직하다. At this time, the water-repellent mixture for impregnation is based on 100 parts by weight of water, 5 to 15 parts by weight of a water-dispersible polyurethane, 3 to 10 parts by weight of a non-fluorine water repellent, 0.3 to 1 part by weight of a water-dispersion crosslinking agent, and 0.3 to 1 part by weight of a water-dispersion curing agent. Include. At this time, it is preferable to use a urethane-based crosslinking agent and a urethane-based curing agent for both the water dispersion crosslinking agent and the water dispersion curing agent.
그리고, 수분산 폴리우레탄은 폴리카보네이트디올 5 내지 15중량부, 폴리테트라메딜 에테르 글리콜 10 내지 25 중량부, 반응성 실리콘 2 내지 10 중량부, 폴리에테르 아민 1 내지 6 중량부, 테트라메틸자일렌 디이소시아내네이트(TMXDI) 7 내지 20 중량부, 불포화 지방족 이소시아네이트 0.1 내지 2 중량부, 무기염계 겔화제 3 내지 8 중량부를 포함한다. 이와 같은 수분산 폴리우레탄의 조성은 합성 피혁 제조 시, 트리코트 기모면의 촉감을 보다 더 부드럽게 제조할 수 있는 수분산 폴리우레탄의 조성이다.And, the water-dispersible polyurethane is polycarbonate diol 5 to 15 parts by weight, polytetramedyl ether glycol 10 to 25 parts by weight, reactive silicone 2 to 10 parts by weight, polyether amine 1 to 6 parts by weight, tetramethylxylene diisocyt 7 to 20 parts by weight of wynate (TMXDI), 0.1 to 2 parts by weight of unsaturated aliphatic isocyanate, and 3 to 8 parts by weight of an inorganic salt-based gelling agent. The composition of such a water-dispersible polyurethane is a composition of a water-dispersible polyurethane that can be produced more smoothly than the touch of a tricot brushed surface when manufacturing synthetic leather.
또한, 이때 사용되는 비불소계 발수제는 아크릴레이트계 또는 우레아 계이며, 계면활성제가 첨가되어 있다. 계면활성제는 비불소계 발수제의 표면장력을 낮추어 발수제가 합성피혁 원단 내부로 더 용이하게 침투되도록 하기 위한 것이다. 이와 같은 조성의 함침용 발수 혼합액은 원단 내부로 함침되어 트리코트 기모원단의 내부 발수성(wicking 발수성)을 높이게 된다. In addition, the non-fluorine-based water repellent used at this time is an acrylate-based or urea-based, and a surfactant is added. The surfactant is to lower the surface tension of the non-fluorine-based water repellent so that the water repellent can more easily penetrate into the interior of the synthetic leather fabric. The water-repellent mixture for impregnation of this composition is impregnated into the fabric to increase the internal water repellency (wicking water repellency) of the tricot brushed fabric.
또한, 이와 같이 수분산 폴리우레탄을 비불소 발수제와 혼합하여 혼합액을 형성한 후 함께 원단에 함침되도록 하고 있으므로 수분산 폴리우레탄 및 비불소 발수제를 각각 함침하여 코팅하는 것 보다, 제조 공정이 간단하며 제조 비용이 절감될 수 있다.In addition, since the water-dispersible polyurethane is mixed with the non-fluorine water repellent to form a mixture and then impregnated into the fabric together, the manufacturing process is simpler than that of impregnating and coating the water-dispersible polyurethane and non-fluorine water repellent respectively. Cost can be reduced.
그리고, 이와 같이 함침층이 형성된 트리코트 기모원단은 원단의 수분 함수율을 40~80%로 조절하기 위해 맹글에서 압착되는 것이 바람직하다.In addition, it is preferable that the tricot brushed fabric in which the impregnation layer is formed is compressed in a mangle to adjust the moisture content of the fabric to 40 to 80%.
은층은 기모 원단층 및 비불소 함침층의 표면에 코팅용 발수 혼합액이 코팅되어 형성된다. 이때, 코팅용 발수 혼합액은 물 100 중량부에 대하여, 수분산 폴리우레탄 15~30 중량부, 비불소 발수제 6 내지 20 중량부, 수분산 가교제 0.6 내지 2 중량부, 수분산 경화제 0.6 내지 2 중량부를 포함한다. 또한, 코팅용 발수 혼합액은 원단 표면을 코팅하여 원단 표면을 발수처리 하기 위한 것으로, 함침용 발수 혼합액보다 점도가 높은 것이 바람직하다. 이와 같이 발수용 혼합액을 원단에 함침 및 코팅시킴으로써 원단 내부 발수성 및 표면 발수성을 모두 우수하게 구현할 수 있게 된다. The silver layer is formed by coating a water-repellent mixture for coating on the surfaces of the brushed fabric layer and the non-fluorine-impregnated layer. At this time, the water-repellent mixture for coating is based on 100 parts by weight of water, 15 to 30 parts by weight of water-dispersible polyurethane, 6 to 20 parts by weight of non-fluorine water repellent, 0.6 to 2 parts by weight of water-dispersion crosslinking agent, and 0.6 to 2 parts by weight of water-dispersion curing agent. Include. In addition, the water-repellent mixture for coating is for water-repellent treatment on the surface of the fabric by coating the surface of the fabric, and it is preferable to have a higher viscosity than the water-repellent mixture for impregnation. By impregnating and coating the fabric with the water-repellent mixture in this way, both the water repellency inside the fabric and the water repellency on the surface can be excellently implemented.
또한, 비불소 발수 함침층 및 은층은 90℃~110℃에서 2 내지 4분간 열풍 건조된 후 140℃~150℃에서 4 내지 6분 동안 경화기에서 경화되는 것이 바람직하다. 이는 발수 혼합액이 트리코트 기모 원단 내부로 고르게 스며들며, 표면에 균일한 발수층을 형성할 수 있도록 하기 위한 것으로 출원인이 다수의 실험 끝에 최적의 가공조건을 도출한 것이다. In addition, it is preferable that the non-fluorine water-repellent impregnated layer and the silver layer are hot air dried at 90°C to 110°C for 2 to 4 minutes and then cured in a curing machine at 140°C to 150°C for 4 to 6 minutes. This is to ensure that the water-repellent mixture permeates evenly into the tricot brushed fabric and forms a uniform water-repellent layer on the surface, and the applicant derived the optimal processing conditions after a number of experiments.
건조는 건조기에서 수행되며, 은층의 평활도 향상과 균열방지를 위해 열풍 건조 되며, 100℃이하의 온도에서 수행되는 것이 바람직하다. 또한, 경화 온도가 140℃ 미만이면, 경화가 제대로 수행되지 않아 표면 발수성이 저하되며, 경화 온도가 150℃를 초과하는 경우 은층에 균열이 발생하여 표면 발수성이 저하될 우려가 있으므로 경화 온도는 140℃~150℃가 바람직하다. 이와 관련해서는 하기한 실험예 1 및 2에서 더 자세하게 설명하기로 한다. Drying is performed in a dryer, and hot air drying is performed to improve the smoothness of the silver layer and prevent cracking, and it is preferable to perform it at a temperature of 100°C or less. In addition, if the curing temperature is less than 140°C, curing is not performed properly and the surface water repellency decreases. If the curing temperature exceeds 150°C, cracks may occur in the silver layer and the surface water repellency may decrease, so the curing temperature is 140°C. ~150°C is preferred. In this regard, it will be described in more detail in Experimental Examples 1 and 2 below.
도 1은 본 발명에 따른 비불소 발수제를 이용한 친환경 발수 합성 피혁의 단면 확대도이다. 도 1에 도시된 바와 같이, 건조 및 경화를 거친 비불소 발수제를 이용한 친환경 발수 합성 피혁은 은층에 균열이 없으며, 균일한 두께로 형성된 것을 확인할 수 있다. 1 is an enlarged cross-sectional view of an eco-friendly water-repellent synthetic leather using a fluorine-free water repellent according to the present invention. As shown in Figure 1, it can be seen that the eco-friendly water-repellent synthetic leather using a non-fluorine water-repellent agent that has been dried and hardened has no cracks in the silver layer, and is formed with a uniform thickness.
수분산 비불소계 발수제의 조성비에 따른 발수성 실험 및 건조 단계와 경화 단계 유무에 따른 발수성 테스트 및 은층의 형성 결과는 아래와 같다.The water repellency test according to the composition ratio of the water-dispersible non-fluorine-based water repellent, the water repellency test according to the presence or absence of the drying step and the curing step, and the formation of the silver layer are as follows.
<실험예 1><Experimental Example 1>
본 실험예 1에서는 비불소 발수제의 조성비 및 경화단계의 유무에 따른 합성피혁의 내부 및 외부 발수성을 실험하였다.In this Experimental Example 1, the internal and external water repellency of synthetic leather according to the composition ratio of the non-fluorine water repellent and the presence or absence of a curing step were tested.
본 실험예 1에서는 물 100 중량부, 수분산 폴리우레탄 10 중량부, 비불소 발수제 3 중량부, 수분산 가교제 0.3 중량부, 수분산 경화제 0.3 중량부가 혼합된 함침용 발수 혼합액을 폴리에스테르 트리코트 기모원단에 함침시킨 후 수분 함수율이 60%가 되도록 원단을 압착하고, 100℃에서 8분간 건조 단계만 수행한 원단(실시예 1)과, 물 100 중량부, 수분산 폴리우레탄 10 중량부, 비불소 발수제 5 중량부, 수분산 가교제 0.3 중량부, 수분산 경화제 0.3 중량부가 혼합된 함침용 발수 혼합액을 폴리에스테르 트리코트 기모원단에 함침시킨 후 수분 함수율이 60%가 되도록 원단을 압착하고 100℃에서 3분간 건조 후 140℃에서 5분간 경화시킨 원단(실시예 2)를 제조하였다.In this Experimental Example 1, a water-repellent mixture for impregnation in which 100 parts by weight of water, 10 parts by weight of a water-dispersible polyurethane, 3 parts by weight of a non-fluorine water repellent, 0.3 parts by weight of a water dispersion crosslinking agent, and 0.3 parts by weight of a water dispersion hardener are mixed was mixed with a polyester tricoat. After impregnating the fabric, the fabric was pressed so that the moisture content was 60%, and only the drying step was performed at 100°C for 8 minutes (Example 1), 100 parts by weight of water, 10 parts by weight of water-dispersible polyurethane, non-fluorine 5 parts by weight of a water repellent, 0.3 parts by weight of a water dispersion crosslinking agent, and 0.3 parts by weight of a water dispersion curing agent are impregnated into the polyester tricot brushed fabric, and then the fabric is pressed so that the moisture content is 60%, and then 3 at 100℃. After drying for a minute, a fabric (Example 2) that was cured at 140° C. for 5 minutes was prepared.
그 후, 실시예 1 및 실시예 2에 따른 원단의 일단을 색소가 첨가된 액체에 담근 후 액체가 원단을 타고 올라가는 정도로 원단의 내부 발수성을 실험하였으며, 원단의 표면에 색소가 있는 액체를 떨어트려 원단 표면의 발수성을 실험하였고 그 결과는 하기한 표 1과 같았다. Thereafter, one end of the fabric according to Examples 1 and 2 was immersed in the liquid to which the pigment was added, and then the internal water repellency of the fabric was tested to the extent that the liquid climbed up the fabric, and the liquid with the pigment was dropped on the surface of the fabric. The water repellency of the fabric surface was tested, and the results are shown in Table 1 below.
상기 표 1에 도시된 바와 같이, 비불소 발수제를 5 중량부 만큼 첨가한 후, 경화단계를 수행한 실시예 2에 따른 원단이 액체가 원단을 타고 올라오는 정도도 낮았으며, 원단 표면의 물방울이 원단에 흡수되지 않는 것을 알 수 있었다. As shown in Table 1, after adding 5 parts by weight of the non-fluorine water repellent, the fabric according to Example 2, which performed the curing step, had a low degree of liquid coming up on the fabric, and water droplets on the fabric surface were It was found that it was not absorbed by the fabric.
즉, 비불소 발수제를 5 중량부 만큼 첨가한 후, 100℃에서 3분간 건조, 140℃에서 5분간 경화시키는 것이 원단의 내부 발수성 및 외부발수성을 모두 향상시킬 수 있음을 알 수 있다. That is, after adding 5 parts by weight of the non-fluorine water repellent, drying at 100° C. for 3 minutes and curing at 140° C. for 5 minutes can improve both internal and external water repellency of the fabric.
<실험예 2><Experimental Example 2>
본 실험예 2에서는 경화 유무에 따른 은층의 표면 균열정도를 실험하였다. 은층이 코팅된 원단을 140℃에서 8분간 건조하여 제조한 원단(실시예 3)과, 은층이 코팅된 원단을 100℃에서 3분간 건조한 후 140℃에서 5분간 경화시킨 원단(실시예 4)를 제조하였다.In this Experimental Example 2, the degree of cracking of the surface of the silver layer with or without hardening was tested. A fabric prepared by drying the silver layer-coated fabric at 140°C for 8 minutes (Example 3), and a fabric prepared by drying the silver layer-coated fabric at 100°C for 3 minutes and then curing the fabric at 140°C for 5 minutes (Example 4). Was prepared.
이때, 코팅된 은층의 두께는 80㎛-100㎛ 두께로 형성되도록 하였으며, 현미경을 활용해 표면의 균열 상태를 확인 하였으며, 그 결과를 하기 표 2에 나타내었다.At this time, the coated silver layer was formed to have a thickness of 80 µm to 100 µm, and the cracked state of the surface was checked using a microscope, and the results are shown in Table 2 below.
상기 표 2에 나타난 바와 같이, 140℃에서 5분간 경화시킨 실시예 2에 따른 원단의 은층이 균열이 없고 고르게 코팅되는 것을 알 수 있다. 즉, 상기 실험예 1과 같이 100℃에서 3분간 건조, 140℃에서 5분간 경화시키는 것이 원단의 내부 및 표며 발수성뿐만 아니라, 은층의 표면을 균일하게 코팅시킬 수 있음을 알 수 있다.As shown in Table 2, it can be seen that the silver layer of the fabric according to Example 2, which was cured at 140° C. for 5 minutes, had no cracks and was evenly coated. That is, it can be seen that drying at 100° C. for 3 minutes and curing at 140° C. for 5 minutes as in Experimental Example 1 can uniformly coat the surface of the silver layer as well as the interior and surface of the fabric and water repellency.
본 발명은 상기한 실시예에 한정되지 아니하며, 적용범위가 다양함은 물론이고, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 다양한 변형 실시가 가능한 것은 물론이다.The present invention is not limited to the above-described embodiments, and of course, various modifications can be made without departing from the gist of the present invention as claimed in the claims.
Claims (4)
상기 폴리에스테르 트리코트 기모 원단층에 수분산 폴리우레탄 및 비불소 발수제가 포함된 함침용 발수 혼합액이 함침되어 형성된 비불소 발수 함침층; 및 상기 기모 원단층 및 상기 비불소 발수 함침층의 표면에 코팅용 발수 혼합액이 코팅되어 형성되는 은층;을 포함하며,
상기 비불소 발수 함침층 및 상기 은층은 90℃~110℃에서 2 내지 4분간 열풍건조된 후 140℃~150℃에서 4 내지 6분 동안 경화기에서 경화되며,
상기 함침용 발수 혼합액은 물 100중량부에 대하여,
상기 수분산 폴리우레탄 5 내지 15 중량부, 상기 비불소 발수제 3 내지 10 중량부, 수분산 가교제 0.3 내지 1 중량부, 수분산 경화제 0.3 내지 1 중량부를 포함하는 것을 특징으로 하는 비불소 발수제를 이용한 친환경 발수 합성 피혁.
Polyester tricot brushed fabric layer;
A fluorine-free water-repellent impregnation layer formed by impregnating a water-dispersible polyurethane and a water-repellent mixture for impregnation containing a non-fluorine water-repellent agent in the polyester tricot-napping fabric layer; And a silver layer formed by coating a water-repellent mixture for coating on the surfaces of the brushed fabric layer and the non-fluorine water-repellent impregnating layer,
The non-fluorine water-repellent impregnated layer and the silver layer are hot air dried at 90°C to 110°C for 2 to 4 minutes and then cured in a curing machine at 140°C to 150°C for 4 to 6 minutes,
The water-repellent mixture for impregnation is based on 100 parts by weight of water,
Eco-friendly using a non-fluorine water repellent comprising 5 to 15 parts by weight of the water-dispersible polyurethane, 3 to 10 parts by weight of the non-fluorine water repellent, 0.3 to 1 parts by weight of a water-dispersion crosslinking agent, and 0.3 to 1 part by weight of a water-dispersion hardener Water-repellent synthetic leather.
상기 코팅용 발수 혼합액은 물 100중량부에 대하여,
상기 수분산 폴리우레탄 15 내지 30 중량부, 상기 비불소 발수제 6 내지 20 중량부, 수분산 가교제 0.6 내지 2 중량부, 수분산 경화제 0.6 내지 2 중량부를 포함하는 것을 특징으로 하는 비불소 발수제를 이용한 친환경 발수 합성 피혁.
The method of claim 1,
The water-repellent mixture for coating is based on 100 parts by weight of water,
Eco-friendly using a non-fluorine water repellent, characterized in that it comprises 15 to 30 parts by weight of the water-dispersible polyurethane, 6 to 20 parts by weight of the non-fluorine water repellent, 0.6 to 2 parts by weight of a water-dispersion crosslinking agent, and 0.6 to 2 parts by weight of a water-dispersion hardener Water-repellent synthetic leather.
상기 코팅용 발수 혼합액의 점도는 상기 함침용 발수 혼합액의 점도 보다 높은 것을 특징으로 하는 비불소 발수제를 이용한 친환경 발수 합성 피혁.The method of claim 3,
Eco-friendly water-repellent synthetic leather using a non-fluorine water repellent, characterized in that the viscosity of the water-repellent mixture for coating is higher than that of the water-repellent mixture for impregnation.
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| KR100814990B1 (en) | 2006-07-27 | 2008-03-18 | (주)대우인터내셔널 | Manufacturing method of artificial leather with cut yarns and artificial leather accordingly |
| KR101601749B1 (en) | 2015-03-25 | 2016-03-09 | 주식회사 마이폴리머 | Water-repellent coating composition and water-proof breathable fabrics using the same |
| KR101834441B1 (en) * | 2017-10-13 | 2018-03-05 | (주)현대식모 | Eco-friendly water-repellent suede manufacturing method with improved wicking water-repellent performance |
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| KR19990075813A (en) * | 1998-03-25 | 1999-10-15 | 장병주, 이일쇄 | Manufacturing method of high adhesion wet artificial leather |
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| KR101601749B1 (en) | 2015-03-25 | 2016-03-09 | 주식회사 마이폴리머 | Water-repellent coating composition and water-proof breathable fabrics using the same |
| KR101834441B1 (en) * | 2017-10-13 | 2018-03-05 | (주)현대식모 | Eco-friendly water-repellent suede manufacturing method with improved wicking water-repellent performance |
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