KR101220687B1 - Textile coating solution with graphite, manufacturing method of textile coated with graphite and textile coated with graphite - Google Patents
Textile coating solution with graphite, manufacturing method of textile coated with graphite and textile coated with graphite Download PDFInfo
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- KR101220687B1 KR101220687B1 KR1020120070967A KR20120070967A KR101220687B1 KR 101220687 B1 KR101220687 B1 KR 101220687B1 KR 1020120070967 A KR1020120070967 A KR 1020120070967A KR 20120070967 A KR20120070967 A KR 20120070967A KR 101220687 B1 KR101220687 B1 KR 101220687B1
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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
- D06M11/73—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 carbon or compounds thereof
- D06M11/74—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 carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
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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
- D06M11/84—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 combined with mechanical treatment
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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
- D06M15/568—Reaction products of isocyanates with polyethers
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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
- D06M15/70—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment combined with mechanical treatment
- D06M15/71—Cooling; Steaming or heating, e.g. in fluidised beds; with molten metals
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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
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
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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
- D10B2401/16—Physical properties antistatic; conductive
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- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
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Abstract
Description
본 발명은 그라파이트를 이용한 섬유코팅제 및 그라파이트를 활용한 기능성 섬유 제조방법과 기능성 섬유에 관한 것으로, 수성우레탄을 이용하여 그라파이트를 섬유코팅제로 적용하여 보온성, 방수성, 항균성, 마찰 대전성 등을 향상시킴과 동시에 균일한 도포가 가능하게 되어 생산성이 향상되도록 하는 그라파이트를 이용한 섬유코팅제 및 그라파이트를 활용한 기능성 섬유 제조방법과 기능성 섬유에 관한 것이다.The present invention relates to a fiber coating agent using graphite and to a functional fiber manufacturing method and functional fiber using graphite, by applying graphite as a fiber coating agent using a water-based urethane to improve heat retention, waterproofing, antibacterial, triboelectric charge and the like; The present invention relates to a fiber coating agent using graphite and a functional fiber production method using graphite and functional fibers using a graphite to enable uniform coating at the same time.
그라파이트는 탄소 원자의 망상 구조 또는 육방 배열의 층 평면들로 구성되어 있다. 육방으로 배열된 탄소 원자의 이들 층 평면들은 실질적으로 편평하고, 서로 실질적으로 평행하고 동일 거리에 있도록 배향(orient) 또는 정렬(order)된다.Graphite consists of layer planes of a network structure or hexagonal arrangement of carbon atoms. These layer planes of hexagonally arranged carbon atoms are substantially flat and are oriented or ordered to be substantially parallel and equidistant from each other.
일반적으로 그래팬(graphene)층 또는 바탕면(basal planes)으로 지칭되는, 실질적으로 편평하고 평행한 동일 거리의 탄소 원자의 시트 또는 층은 서로 링크되거나 결합되며 이들 그룹은 결정 상태로 배열된다. 잘 정렬된 그라파이트는 상당한 크기의 미세결정으로 구성되고, 미세결정은 서로 잘 정렬되거나 배향되며 잘 정렬된 탄소층을 갖는다. Sheets or layers of substantially flat, parallel, equidistant carbon atoms, generally referred to as graphene layers or basal planes, are linked or bonded together and these groups are arranged in a crystalline state. Well-aligned graphite consists of significant sizes of microcrystals, which microcrystals are well aligned or oriented with each other and have a well aligned carbon layer.
그라파이트가 이방성 구조를 가져 열전도도 및 전기전도도와 같은 높은 방향성을 가지므로, 웨브, 종이, 스트립, 테이프, 호일, 매트 등과 같은 팽창된 그라파이트의 접착성 시트 또는 일체식(integrated) 시트로 형성될 수 있다.Since graphite has an anisotropic structure and high directionality such as thermal conductivity and electrical conductivity, it can be formed into an adhesive sheet or integrated sheet of expanded graphite such as web, paper, strip, tape, foil, mat, etc. have.
이외에 그라파이트는 통상 마찰재로서 베어링이나 고속회전체의 마모 강도를 높이는 기계부품으로 많이 사용하여 왔다.In addition, graphite has been commonly used as a friction material as a mechanical part that increases the wear strength of bearings and high-speed rotating bodies.
그러나, 그라파이트를 직접 섬유에 코팅한 기술은 현재까지는 개발되고 있지 않은 실정이다.
However, a technique in which graphite is directly coated on fibers has not been developed until now.
한편, 국내의 우레탄 산업은 1980년대까지 의류, 신발, 가방, 완구, 소파, 침대 등의 생활용품 소재산업을 중심으로 발전하였고, 현재는 자동차, 전자, 토목, 조선 등 중화학 공업소재 및 나아가 우주항공산업, 의료용 재료로도 많은 응용이 이루어지고 있으며, 섬유산업에서도 폴리우레탄 코팅기술이 사용되어 인조피혁이라는 새로운 시장을 만들었다.Meanwhile, the domestic urethane industry was developed around the household goods material industries such as clothing, shoes, bags, toys, sofas, and beds until the 1980s, and is currently used in heavy chemical industrial materials such as automobiles, electronics, civil engineering, shipbuilding, and even aerospace. Many applications are being made in industrial and medical materials, and polyurethane coating technology is used in the textile industry to create a new market called artificial leather.
이러한 지속적 발전을 거듭하던 폴리우레탄 산업은 80년대 후반 이후, 발포제로 사용되는 CFC의 규제, 폐기물의 처리 및 재활용 등과 같은 환경문제의 발생으로 대체물에 대한 요구가 높아지고 있는데, 이에 대한 대안으로 친환경적인 수성 폴리우레탄에 대한 수요가 서서히 증가하고 있다.Since the late 80's, the polyurethane industry, which has been continuously developed, has increased the demand for alternatives due to the occurrence of environmental problems such as the regulation of CFCs used as foaming agents, the disposal and recycling of wastes. The demand for polyurethanes is gradually increasing.
이러한 추세에 힘입어 소수성인 폴리우레탄을 수성화시키는 연구들로서는, 폴리우레탄 골격 중에 친수성기를 도입하여 자기 유화성 수지를 만든 후 수중에서 분산시키는 방법 (일본특허공개 평4-328187, 일본특허공고평5-43642호), 소수성 폴리우레탄을 다량의 유화제를 사용하여 분산시키는 방법(일본특허공고 소39-5989,일본특허공고 소45-10957) , 이소시아네이트기와 물 사이의 반응이 억제되며 수중분산 상태에서 높은 안정성을 보이는 고유화성 안정성 폴리이소시아네이트 조성물(한국특허공개 1999-7653), 방향족-지방족 이소시아네이트가 하이브리드된 수분산 폴리우레탄 제조방법(한국특허공개 2005-6939) 등이 다수 개시되어있다.As a result of these trends, studies for the hydrophobicization of hydrophobic polyurethanes include a method of introducing a hydrophilic group into a polyurethane skeleton to make a self-emulsifying resin and then dispersing it in water (Japanese Patent Laid-Open No. 4-328187, Japanese Patent Publication 5). -43642), a method of dispersing hydrophobic polyurethane using a large amount of emulsifier (Japanese Patent Publication No. 39-5989, Japanese Patent Publication No. 45-10957), the reaction between isocyanate group and water is suppressed and high in water dispersion A number of disclosed unique stability polyisocyanate composition (Korean Patent Publication No. 1999-7653), a method of producing a water-dispersed polyurethane hybridization of aromatic-aliphatic isocyanate (Korean Patent Publication No. 2005-6939) and the like are disclosed.
기존의 유성 폴리우레탄은 톨루엔, 아세톤, 메틸에틸케톤, 시클로헥산 등과 같은 다량의 유기용제의 사용으로 환경문제의 심각성이 제기될 뿐 아니라 기본적으로 포르말린을 함유하고 있어, 국제적으로 유아용은 30ppm ,성인용은 70ppm의 허용치를 두고 있으나 선진국들은 친환경성 및 고기능을 요구하는 섬유제품에 있어 더욱 엄격한 기준을 요구하고 있는 실정이다.Existing oil-based polyurethanes not only raise the seriousness of the environmental problem by using a large amount of organic solvents such as toluene, acetone, methyl ethyl ketone, and cyclohexane, but also contain formalin. Although 70ppm is allowed, developed countries are demanding more stringent standards for textile products that require eco-friendliness and high performance.
따라서 친환경적 제품으로 인정되고 있는 수분산 폴리 우레탄에 대한 적용이 매우 절실한 실정으로 본 발명의 출원인은 대한민국등록특허 10-822641호로 수성우레탄을 이용하여 방수성, 투습성, 세탁내구성, 촉감성 및 작업성 등에 많은 문제점을 해결한 코팅방법을 공개하였다.Therefore, the application of the present invention is very urgent for the application of the water-dispersed polyurethane which is recognized as an environmentally friendly product, and the applicant of the present invention uses a water-based urethane as Republic of Korea Patent No. 10-822641. The coating method which solved the problem was disclosed.
그러나, 상기한 대한민국등록특허 10-822641호에 그라파이트 분말을 첨가할 경우 분산과정에서 알칼리계 공중합체화합물로 인하여 겔(gel)현상이 발생되어 코팅시 불균일하게 도포되고 이로 인하여 내수성, 투습성, 보온성, 세탁내구성, 마찰대저성등에 편차가 발생되므로, 이러한 편차를 극복하기 위해서는 여러번 코팅하여야 하고 이로 인하여 생산성이 매우 떨어져 제조원가가 상승되는 요인이 되었다.However, when the graphite powder is added to the above-mentioned Korea Patent Registration No. 10-822641, a gel phenomenon occurs due to an alkali copolymer compound in the dispersion process, and is unevenly applied during coating, which causes water resistance, moisture permeability, heat retention, Since the deviation occurs in the laundry durability, friction resistance, etc., in order to overcome such a deviation it has to be coated several times, which is a factor that increases the production cost is very low productivity.
본 발명은 그라파이트를 섬유에 직접 코팅하기 위하여 본 발명의 출원인이 선출원한 수성우레탄을 이용한 코팅기술을 접목하여 보온성, 방수성, 항균성, 마찰대전성, 세탁내구성 등을 향상시키는 그라파이트를 이용한 섬유코팅제 및 이를 활용한 기능성 섬유 제조방법과 기능성 섬유를 제공하는 데 목적이 있다.The present invention is a fiber coating agent using graphite to improve the heat retention, water resistance, antimicrobial properties, triboelectric chargeability, laundry durability and the like by incorporating the coating technology using the water-based urethane of the applicant of the present invention in order to coat the graphite directly on the fiber and this The purpose is to provide a functional fiber manufacturing method and functional fiber utilized.
또한, 본 발명의 다른 목적은 상기한 그라파이트를 분산시 겔현상이 발생하지않도록 하여 균일한 코팅이 가능하도록 함으로써 생산성이 향상되어 제조원가가 절감되도록 하는 데 다른 목적이 있다.In addition, another object of the present invention is another object to improve the productivity by reducing the production cost by enabling a uniform coating to prevent the gel phenomenon occurs when the graphite is dispersed.
상기한 목적을 달성하기 위한 본 발명의 특징은 지방족 이소시아네이트와 에테르형 폴리올을 반응시켜 고형분30~50중량%, 점도 100cps이하의 수성우레탄을 제조하고, 상기 수성우레탄에 4㎛이하의 그라파이트를 투입하여 교반하며, 상기 수성우레탄에 그라파이트가 투입된 용액을 우레탄 증점제를 투입하여 점도 3,000~15,000cps로 조절하여 제조되는 코팅제에 있다.A feature of the present invention for achieving the above object is to prepare an aqueous urethane having a solid content of 30 to 50% by weight and a viscosity of 100 cps or less by reacting an aliphatic isocyanate with an ether type polyol, and adding 4 μm or less of graphite to the aqueous urethane. While stirring, the solution into which the graphite is added to the aqueous urethane is added to the urethane thickener to adjust the viscosity to 3,000 to 15,000 cps in the coating prepared.
그리고, 상기 코팅제를 섬유에 도포 후 100~130℃ 열풍건조기에 1~2분 건조하고 형태안정을 위하여 150~170℃ 1~2분 큐어링(CURING)하는 과정을 포함하는 그라파이트를 이용한 기능성 섬유 및 그 제조방법에 있다.And, after applying the coating agent to the fiber functional fiber using graphite comprising the process of drying for 1-2 minutes in a 100 ~ 130 ℃ hot air dryer and curing 150 ~ 170 ℃ 1 ~ 2 minutes (CURING) for shape stability and It is in the manufacturing method.
상기에서 수성우레탄 100중량에 그라파이트 파우더는 5~50중량부 투입한다.The graphite powder is added to 5 to 50 parts by weight in 100 weight of the aqueous urethane.
상기한 바와 같은 특징을 갖는 본 발명에 의하면 그라파이트를 섬유코팅제로 이용시 보온성, 방수성, 항균성, 마찰 대전성 등이 매우 우수하여 고기능성 섬유제품으로 활용할 수 있게 된다.According to the present invention having the characteristics as described above, when the graphite is used as a fiber coating agent, it is very excellent in thermal insulation, waterproofness, antibacterial property, triboelectric chargeability, etc., and thus can be utilized as a high functional textile product.
또한, 수성우레탄 코팅제와 혼합하여 직물에 코팅시 여러 번의 세탁에도 내구성을 유지할 수 있으며 그라파이트 고유의 물성을 그대로 유지할 수 있다.In addition, by mixing with a water-based urethane coating can be maintained in the durability even after multiple washing when coating on the fabric and can maintain the inherent physical properties of graphite.
아울러, 상기한 본 발명으로 코팅된 섬유제품은 매우 친환경적인 제품으로서 포르말린이 검출되지 않아 엄격한 선진국 규격기준을 만족하고 있으며, 그밖에 방수성, 투습성, 내세탁성 등의 고기능성을 구비하고 있다.In addition, the textile product coated with the present invention is a very environmentally friendly product is not detected formalin satisfies the strict standards of developed countries, and also has high functionality such as waterproof, moisture permeability, washing resistance.
또한 작업환경에서도 환경공해가 발생하지 않아 매우 쾌적한 조건에서, 코팅작업이 가능하며, 기름 대신 물을 사용하므로 고유가 시대에 원가절감에도 크게 기여할 수 있다.In addition, the environmental pollution does not occur in the working environment, it is possible to coat in a very pleasant conditions, and because water is used instead of oil can greatly contribute to cost reduction in the high oil prices.
그리고,본 발명의 수성 우레탄 코팅제는 범용으로 어떤 원단에도 적용이 가능하며, 코팅 이후 섬유의 탄성이 향상되어 매우 부드러운 터치감 내지 우수한 표면 슬립(Slip)성이 입증되고 있다. 또한 작업시 끈적거리는 태키(Tacky)현상이 없고, 섬유제품을 봉제할 때도 초크마크와 바늘자국이 남지않아, 우수한 작업성으로 작업효율이 크게 향상된다.In addition, the water-based urethane coating agent of the present invention can be applied to any fabric in a general purpose, the elasticity of the fiber is improved after coating has been proved to have a very soft touch to excellent surface slip (Slip). In addition, there is no sticky tacky phenomenon at work, and there are no chalk marks and needle marks when sewing textile products, and the work efficiency is greatly improved with excellent workability.
아울러, 본 발명에 의하면 그라파이트를 분산시 겔현상이 발생하지않도록 하여 균일한 코팅이 가능하도록 함으로써 생산성이 향상되어 제조원가가 절감되는 효과가 있다.In addition, according to the present invention, the uniformity of the coating is prevented by preventing gel from occurring during dispersing graphite, thereby improving productivity and reducing manufacturing costs.
도 1은 본 발명에 따른 원단의 광 조사에 의한 원단표면온도변화를 측정하기위한 장치1 is a device for measuring the change in the surface temperature of the fabric by the light irradiation of the fabric according to the invention
이하 본 발명의 실시예를 설명한다.
Hereinafter, embodiments of the present invention will be described.
본 발명에 따른 그라파이트를 이용한 섬유코팅제는 지방족 이소시아네이트와 에테르형 폴리올을 반응시켜 고형분30~50중량%, 점도 100cps이하로 제조된 수성우레탄, 상기 수성우레탄 100중량 기준 5~50중량부 투입되어 2000rpm~10000rpm 속도로 고속교반되는 직경 0.0001㎛~4㎛이하의 그라파이트, 상기 수성우레탄과 그라파이트 혼합 용액에 투입되어 점도를 3,000~15,000cps로 조절하는 우레탄 증점제를 포함하여 구성된다.The fiber coating agent using graphite according to the present invention is prepared by reacting an aliphatic isocyanate with an ether type polyol, a solid content of 30 to 50% by weight and a viscosity of 100 cps or less, based on 100 parts by weight of 5 to 50 parts by weight of the aqueous urethane. Graphite having a diameter of 0.0001 μm to 4 μm or less at high speed at a speed of 10000 rpm is added to the aqueous urethane and graphite mixed solution, and includes a urethane thickener for adjusting the viscosity to 3,000 to 15,000 cps.
상기에서 수성우레탄은 지방족 이소시아네이트와 에테르형 폴리올을 반응시켜 음이온 친수성기를 도입하고 우레탄 프리폴리머를 합성한 폴리올을 수성우레탄 총중량기준 30~50중량%, 수성우레탄 총중량기준 중화제 0.1~1중량%, 수성우레탄 총중량기준 물 46~67.8중량%, 수성우레탄 총중량기준 쇄연장제 2~3중량%를 포함하여 구성되며, 상기한 조성을 갖는 수성우레탄은 폴리올에 중화제를 투입하여 폴리올의 친수성기를 중화시킨 후 물에 분산시키면서 쇄연장제로 고형분30~50중량%, 점도 100cps이하로 제조한 것이다.The aqueous urethane is introduced into the anionic hydrophilic group by reacting the aliphatic isocyanate with the ether type polyol, and the polyol synthesized the urethane prepolymer is 30 to 50% by weight, based on the total weight of the aqueous urethane, 0.1 to 1% by weight of the total weight of the aqueous urethane It comprises 46 to 67.8% by weight of the reference water, 2-3% by weight of the chain extender based on the total weight of the aqueous urethane, and the aqueous urethane having the above-mentioned composition is neutralized by adding a neutralizing agent to the polyol to neutralize the hydrophilic group of the polyol and dispersing it in water. It is manufactured with a chain extender 30 to 50% by weight solids, viscosity of 100 cps or less.
상기에서 지방족 이소시아네이트와 에테르형 폴리올은 중량비로 0.1:1~1:1의 비율로 혼합되어 고형분이 30~50중량%되도록 혼합하며, 중화제는 트리에틸아민(Triethyl amine:TEA)이 사용되고, 쇄연장제는 2~4가의 관능기를 가지는 아민류를 사용한다.In the above, aliphatic isocyanate and ether type polyol are mixed in a weight ratio of 0.1: 1 to 1: 1 so that the solid content is 30 to 50% by weight, and the neutralizing agent is triethylamine (TEA), which is chain-extended. The agent uses amines which have a bivalent to tetravalent functional group.
그리고, 상기 증점제는 HEUR(Hydrophobically modified ethylene oxide urethane)을 사용하여 코팅제 총중량기준 1~3중량% 투입하여 점도가 3,000~15,000cps가 되도록 한다.In addition, the thickener is 1 to 3% by weight based on the total weight of the coating agent by using HEUR (Hydrophobically modified ethylene oxide urethane) to have a viscosity of 3,000 ~ 15,000cps.
한편, 상기 그라파이트 파우더는 수성우레탄 100중량 기준으로 5~50중량부까지 투입하여 고속 분산후 증점을 하여 직물에 코팅하게 되는데, 그라파이트 농도가 5중량부 이하일 경우 분산성은 좋으나 그라파이트의 고유 물성이 코팅된 직물에 효과가 떨어지고, 50중량부 이상의 높은 농도를 투입시 분산성이 떨어지고 코팅시 표면 평활도가 떨어지고 세탁내구성이 약하여 의류용 소재로 사용하기가 어렵다.
On the other hand, the graphite powder is added to 5 to 50 parts by weight based on 100 parts by weight of aqueous urethane, and then coated on the fabric by thickening after high-speed dispersion, when the graphite concentration is 5 parts by weight or less, good dispersibility but coated with the inherent physical properties of graphite It is difficult to use as a material for clothing because the effect is low on the fabric, the dispersibility is reduced when a high concentration of 50 parts by weight or more is added, and the surface smoothness is poor when coating, and the washing durability is weak.
그리고, 상기한 바와 같이 제조된 코팅제를 이용하여 기능성 섬유를 제조하는 방법을 살펴보면, 섬유직물에 상기 코팅제를 폴로팅타입(FLOATING TYPE), 롤온타입(ROLL ON TYPE)코팅기로 직접 도포후 100~130℃ 열풍건조기에 1~2분 건조 후 형태안정을 위하여 텐터기를 이용하여 150~170℃ 1~2분 큐어링(CURING)한다.In addition, looking at the method for producing functional fibers using the coating agent prepared as described above, after coating the coating agent on the textile fabric with a FLOATING TYPE, ROLL ON TYPE coating machine 100 ~ 130 After drying for 1 ~ 2 minutes in hot air dryer, cure at 150 ~ 170 ℃ for 1 ~ 2 minutes using a tenter for shape stability.
상기에서 섬유는 다양한 종류가 사용가능하며, 구체적으로는 마, 견, 면, 마 등의 천연섬유, 나일론, 폴리에스테르, 폴리아크릴, 폴리아미드, 폴리염화비닐 등의 합성섬유 및 레이온, 아세테이트 등의 재생섬유 및 상기 섬유들의 교직물을 포함한다.The fiber may be used in various kinds, specifically, natural fibers such as hemp, silk, cotton, hemp, synthetic fibers such as nylon, polyester, polyacryl, polyamide, polyvinyl chloride and rayon, acetate, etc. Recycled fibers and interwoven fabrics of the fibers.
그리고, 코팅과정에서 코팅제는 20~100 g/yds 두께로 도포한 후 설비속도 40~50 yard/min로 100~130℃로 1~2분간 열풍건조시킨다.In the coating process, the coating agent is applied at a thickness of 20 to 100 g / yds, and then dried by hot air at a plant speed of 40 to 50 yards / min at 100 to 130 ° C. for 1 to 2 minutes.
이렇게 코팅된 직물은 보온성, 전도성, 방수성, 방풍성, 항균성, 마찰대전성이 우수하여 고기능성 섬유 제조시 매우 적합한 제품으로 평가되고 있다.
The coated fabric has excellent thermal insulation, conductivity, water resistance, wind resistance, antibacterial properties, and anti-friction properties.
한편, 상기한 그라파이트는 유성우레탄과 혼합사용시 그라파이트의 물이 녹아나와 직물에 얼룩이 발생되고, 건조시 디엠에프(DMF, Dimethylformamide), 엠이케이(MEK, Methyl Ethyl Ketone), 톨루엔(TOLUENE) 등의 유기용제가 잔류하여 피부에 접촉시 유해성으로 인하여 의류용직물소재로는 적합하지않다. 또한 유성우레탄은 합성 후 점도가 높기 때문에 파우더(power)상태의 그라파이트를 첨가후 분산시 분산성이 떨어지고 이로 인하여 코팅시 그라파이트의 분포도가 고르지 못하여 표면평활성이 떨어져서 그라파이트의 기능이 구현되기가 어렵다.
On the other hand, when the graphite is mixed with oil-based urethane, the water of the graphite melts and stains are generated, and when dried, DMF (Dimethylformamide), MK (MEK, Methyl Ethyl Ketone), and toluene It is not suitable as a fabric material for clothing due to the harmful effects of organic solvent remaining on skin. In addition, since the oily urethane has a high viscosity after synthesis, dispersibility is decreased when dispersing after adding graphite in powder (power) state, and thus it is difficult to realize the function of graphite due to uneven distribution of graphite during coating.
그러나 수성우레탄에 분산 코팅시 용제가 물이므로 유해성이 검출되지 않으며, 또한 그라파이트 고유의 물성을 저해하지않고 화재위험성도 없으며, 작업자의 근로환경도 매우 좋으며 고기능성 섬유로의 신소재로 각광을 받을 수 있다.
However, since the solvent is water when dispersing and coating water-based urethane, no harmfulness is detected, and it does not impair the inherent properties of graphite, there is no risk of fire, the working environment of the worker is very good, and it can be spotlighted as a new material with high functional fiber. .
이와 같은 그라파이트를 유성 혹은 수성우레탄을 이용하여 코팅제를 제조하여 특성을 살펴본다.The graphite is prepared by using oily or aqueous urethane to examine the properties of the coating.
이를 위하여, 나일론 및 폴리에스테르 20데니어 원단을 정련,염색, 발수처리 등 전처리과정을 한다.To this end, nylon and polyester 20 denier fabric is subjected to a pretreatment process such as refining, dyeing, water repellent treatment.
그리고, 상기 본 발명의 코팅제를 직물 원단에 야드당 웨트(wet) 상태의 도포량 20~50g/yard를 도포하고 100~130℃로 1~2분간 열풍건조시킨 뒤, 150~170℃ 1~2분 큐어링(CURING)한다.Then, the coating agent of the present invention is applied to the fabric fabric 20 to 50g / yard in a wet amount per yard (wet), and then hot-air-dried at 100 ~ 130 ℃ for 1 to 2 minutes, 150 ~ 170 ℃ 1 ~ 2 minutes Curing
이와 같이 제조된 본 발명의 섬유와 비교하기 위하여, 지방족 이소시아네이트와 폴리에테르 타입의 폴리올을 중량비로 0.1:1~1:1 비율로 고형분을 30~50중량%되게 혼합한 혼합물 20~50중량%와, 디엠에프(DMF, Dimethylformamide), 엠이케이(MEK, Methyl Ethyl Ketone), 톨루엔(TOLUENE) 중에서 택일된 하나 혹은 둘 이상의 혼합 용제 50~80중량%를 혼합하여 폴리우레탄수지를 제조하고, 0.0001㎛~4㎛크기의 그라파이트 분말을 톨루엔에 10~40중량%로 분산시켜 상기 폴리우레탄수지에 혼합 후, 고속교반기에 2,000~10,000RPM정도를 유지하며 10~20분 정도 교반하여 점도를 3,000~15,000cps로 맞추어 제조된 코팅제를 전처리된 원단에 야드당 웨트(wet)상태의 도포량 20~50g/yard를 도포하고 100~130℃로 1~2분간 열풍건조시킨 뒤, 150~170℃ 1~2분 큐어링(CURING)한다.
In order to compare with the fiber of the present invention prepared as described above, 20 to 50% by weight of the mixture of aliphatic isocyanate and polyether type polyol in a weight ratio of 0.1: 1 to 1: 1 in a solid content of 30 to 50% by weight Polyurethane resin is prepared by mixing 50-80% by weight of one or more mixed solvents selected from DMF, Dimethylformamide, Methyl Ethyl Ketone, and Toluene, and 0.0001㎛. Disperse the graphite powder having a size of ˜4 μm in toluene at 10 to 40 wt% and mix it with the polyurethane resin, and then stir the viscosity for 10 to 20 minutes while maintaining about 2,000 to 10,000 RPM in a high speed stirrer to obtain a viscosity of 3,000 to 15,000 cps. The coating agent prepared according to the present invention was coated with a coating amount of 20 to 50 g / yard in a wet state per yard on a pretreated fabric and dried by hot air at 100 to 130 ° C. for 1 to 2 minutes, and then cured at 150 to 170 ° C. for 1 to 2 minutes. Ring (CURING).
이와 같이 유성과 수성우레탄을 사용한 그라파이트 코팅제로 코팅된 섬유의 특성을 살펴본 결과는 표 1과 같다.Thus, the results of examining the characteristics of the fiber coated with a graphite coating using an oil-based and an aqueous urethane are shown in Table 1.
표 1에서 수성우레탄을 이용한 제품이 분산성, 부드러운 터치감, 유해성, 표면평활도, 얼룩발생, 마찰대전성, 방수성, 방풍성, 보온성 등에서 유성우레탄을 사용한 것보다 우수함을 알 수 있다.It can be seen from Table 1 that the product using the water-based urethane is superior to that of the oil-based urethane in dispersibility, soft touch feeling, harmfulness, surface smoothness, stain generation, frictional chargeability, water resistance, wind resistance, and heat retention.
이 중에서 방수성의 경우, 직물 원단에 특성에 따라 다소 차이가 날 수 있으나, AATCC35항 기준 빗물시험법(Rain Test)에서 2피트 높이에서 2분간 빗물을 분사했을 때 원단 이면에 부착된 흡습지 중량을 측정한 결과 수성 우레탄수지를 사용한 것이 더 우수함을 알 수 있다.Among these, in case of waterproofness, the fabric fabric may be slightly different depending on the characteristics, but the weight of the absorbent paper attached to the back surface of the fabric is measured when 2 minutes of rain water is sprayed at a height of 2 feet in the rain test of the AATCC35 standard. As a result, it can be seen that the use of an aqueous urethane resin is better.
이러한 결과치는 유성 우레탄수지를 사용할 때보다 높은 방수도를 보인 것으로서, 그 이유는 유성제품은 용제로 MEK,DMF, 톨루엔 등을 사용하므로 휘발점이 물보다도 낮기 때문에 건조 속도는 빠르지만, 이로 인해 표면평활성이 낮아져 방수성이 나빠지게 된다. 반면 본 발명에 의한 수분산 폴리우레탄 코팅액은 건조 속도는 다소 느리지만, 그 반면 직물 코팅층에 피막형성이 잘 되어 유성에 비해 방수성이 높게 나타난다.These results showed higher water resistance than oil-based urethane resins. The reason is that oil-based products use MEK, DMF, and toluene as solvents, so the drying rate is faster because the volatilization point is lower than that of water. The lower the water resistance is worse. On the other hand, the water-dispersed polyurethane coating solution according to the present invention has a somewhat slow drying speed, but on the other hand, the film coating is well formed on the fabric coating layer, and thus the waterproofing property is higher than oily.
그리고, 세탁내구성은 KSK0430(40℃)에서 실시, 수성우레탄 사용시 직물의 염색이 세탁에 의해 탈색 및 변색되지 않는 것을 확인한 것이다. 또한 물세탁에 관한 AATCC 61항 및 드리이크리닝 AATCC132항에 규정된 테스트 조건을 만족하고 있다.
In addition, the laundry durability is carried out at KSK0430 (40 ℃), it is confirmed that the dyeing of the fabric when using water-based urethane does not discolor and discolor by washing. It also satisfies the test conditions specified in AATCC 61 and dry cleaning AATCC132, concerning water washing.
이러한 작용효과를 보다 명확하게 하기 위하여 본원의 출원인은 본 발명에 따른 코팅제를 섬유원단에 코팅한 시료를 이용하여 마찰대전성을 FITI시험연구원에 의뢰하여 "KS K 0555: 2010 B법"으로 측정한 결과는 표 3과 같다.In order to clarify these effects, the applicant of the present application measured frictional chargeability with the FITI test researcher using a sample coated with a coating material according to the present invention and measured by "KS K 0555: 2010 B method". The results are shown in Table 3.
측정조건은 20±2℃, (40±2)%R.H, 400rpm/min으로서, 그라파이트 필름의 마찰대전압이 일반필름에 비하여 낮음을 알 수 있다.
The measurement conditions were 20 ± 2 ° C., (40 ± 2)% RH, and 400 rpm / min. It can be seen that the frictional voltage of the graphite film was lower than that of the general film.
따라서, 본원의 수성우레탄 코팅은 마찰대전성이 우수하고, 보온성, 투습성 및 내수성이 우수함을 알 수 있다.
Therefore, it can be seen that the aqueous urethane coating of the present application is excellent in triboelectric chargeability and excellent in heat retention, moisture permeability and water resistance.
그러나 유성 우레탄 코팅은 코팅의 종류에 따라 세탁방법을 물세탁, 드라이클리닝으로 구분하고 온도조건 등(물 내지 건조온도 등)을 구분하여야 했으나, 본 발명에 의한 섬유코팅제품은 물세탁과 드라이클리닝이 동시에 가능하며, 특히 드라이클리닝에 적합한 것으로 나타났다.However, the oil-based urethane coating had to classify the washing method into water washing and dry cleaning according to the type of coating, and to distinguish the temperature conditions (water and drying temperature, etc.), but the fiber coating product according to the present invention was washed with water and dry cleaning. At the same time it has been shown to be particularly suitable for dry cleaning.
Claims (5)
상기 수성우레탄 100중량 기준 5~50중량부 투입된 직경 4㎛이하의 그라파이트,
상기 수성우레탄과 그라파이트 혼합 용액에 투입되어 점도를 3,000~15,000cps로 조절하는 하이드로포비컬리 모디파이드 에틸렌 옥사이드 우레탄(Hydrophobically modified ethylene oxide urethane) 증점제를 포함하여 구성되는 것을 특징으로 하는 그라파이트를 이용한 섬유코팅제.An aqueous urethane prepared by reacting an aliphatic isocyanate and an ether polyol with a solid content of 30 to 50% by weight and a viscosity of 100 cps or less;
Graphite of 4 μm or less in diameter, 5-50 parts by weight, based on 100 parts by weight of the aqueous urethane,
The fiber coating agent using graphite, characterized in that it comprises a hydrophobically modified ethylene oxide urethane (Hydrophobically modified ethylene oxide urethane) thickener is added to the aqueous urethane and graphite mixed solution to adjust the viscosity to 3,000 ~ 15,000cps.
지방족 이소시아네이트와 에테르형 폴리올을 중량비로 0.1:1~1:1의 비율로 혼합하여 고형분이 30~50중량%되도록 혼합반응시킨 폴리올을 수성우레탄 총중량기준 30~50중량%,
수성우레탄 총중량기준 중화제 0.1~1중량%,
수성우레탄 총중량기준 물 46~67.8중량%,
수성우레탄 총중량기준 쇄연장제 2~3중량%를 포함하여 구성되는 것을 특징으로 하는 그라파이트를 이용한 섬유코팅제.The method of claim 1, wherein the aqueous urethane,
Aliphatic isocyanate and ether-type polyol in a ratio of 0.1: 1 to 1: 1 by weight ratio of the mixed polyol to 30 to 50% by weight of the solid content of 30 to 50% by weight, based on the total weight of the aqueous urethane,
0.1-1 wt% of neutralizing agent based on total weight of aqueous urethane
46-67.8% by weight of water, based on the total weight of the aqueous urethane
Aqueous coating agent using graphite, characterized in that comprising 2 to 3% by weight of the water-based urethane total weight chain extender.
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