KR102360129B1 - method of manufacturing artificial leather by knitted fabric with improved appearance - Google Patents
method of manufacturing artificial leather by knitted fabric with improved appearance Download PDFInfo
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- KR102360129B1 KR102360129B1 KR1020170183539A KR20170183539A KR102360129B1 KR 102360129 B1 KR102360129 B1 KR 102360129B1 KR 1020170183539 A KR1020170183539 A KR 1020170183539A KR 20170183539 A KR20170183539 A KR 20170183539A KR 102360129 B1 KR102360129 B1 KR 102360129B1
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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
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
- D06M13/252—Mercaptans, thiophenols, sulfides or polysulfides, e.g. mercapto acetic acid; Sulfonium compounds
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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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/402—Amides imides, sulfamic acids
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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
- 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
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0075—Napping, teasing, raising or abrading of the resin coating
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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
Abstract
본 발명은 외관 품질이 향상된 편성물 기반의 인공피혁에 관한 것으로, 폴리에스테르 극세사 및 폴리에스테르 필라멘트를 합사한 원사로 이루어진 편성물을 수축시키고 폴리우레탄을 함침시키고 연삭하고 염색하여, 인공피혁이 제조된다.
본 발명에 의하면 폴리에스테르 극세사 및 폴리에스테르 일반사의 합사로 이루어진 편성물을 수축시킴으로써, 감량 공정이 필요하지 않아 제조공정이 간소화되어 경제적이고, 극세사의 침해가 없고 편성물의 조직의 밀도가 증가하므로 최종적으로 인공피혁에서 외관품질과 촉감이 향상된다. The present invention relates to a knitted fabric-based artificial leather with improved appearance quality, and the artificial leather is manufactured by shrinking a knitted fabric made of a yarn in which polyester microfibers and polyester filaments are braided, impregnating with polyurethane, grinding, and dyeing.
According to the present invention, by shrinking the knitted fabric made of polyester microfiber and polyester general yarn, a weight loss process is not required, so the manufacturing process is simplified and economical. In leather, the appearance quality and feel are improved.
Description
본 발명은 외관 품질이 향상된 편성물 기재의 인공피혁의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing artificial leather based on a knitted fabric with improved appearance quality.
인공피혁은 극세섬유가 3차원적으로 교락되어 형성된 부직포에 고분자 탄성체가 함침되고 표면에 기모를 형성하여 이루어진 것으로, 천연피혁과 유사하게 부드러운 질감 및 독특한 외관을 가져, 신발, 의류, 장갑, 잡화, 가구 및 자동차 내장재 등과 같은 다양한 분야에 널리 이용되고 있다.Artificial leather is made by impregnating a nonwoven fabric formed by three-dimensional entanglement of ultrafine fibers with an elastic polymer and raising the surface. It is widely used in various fields such as furniture and automobile interior materials.
그런데 이러한 부직포 기재의 인공피혁은 기재의 가격이 비싸고 제조가 까다로워 제조원가가 상승하며, 부위간 밀도 차이가 발생하여 불균일해지고, 의류용으로 사용하기에 두껍고, 유연성과 신축성이 부족하며, 색의 이염이 발생하는 문제점이 있다. However, artificial leather of such a non-woven base material is expensive and difficult to manufacture, which increases the manufacturing cost, becomes non-uniform due to density difference between parts, is thick for use in clothing, lacks flexibility and elasticity, and has color transfer. There are problems that arise.
이를 해결하기 위해 편성물 기재의 인공피혁이 개발되고 있다. To solve this problem, artificial leather based on a knitted fabric is being developed.
대한민국 등록특허 제0813459호의 환편조직의 스웨이드조 인공피혁의 제조방법에 의하면, 용출성분과 섬유형성성분으로 구성되며 용출 후 단사섬도가 0.03∼0.3데니어인 폴리에스터계 해도사 또는 분할사에 20∼30%의 비수 수축율을 가지는 단사섬도 1∼3 데니어의 고수축 폴리에스터 필라멘트를 인터레이스하여 환편하고, 염색을 하고, 건조한 후, 폴리우레탄을 부여하고, 수세 및 탈 DMF, 버핑, 감량, 건조 및 텀블러 공정을 하는 것을 특징으로 하는, 환편조직의 스웨드조 인공피혁의 제조방법이 기재되어 있다. According to the manufacturing method of the suede-like artificial leather of the circular knitted structure of the Republic of Korea Patent No. 0813459, it is composed of a dissolution component and a fiber-forming component, and after dissolution, a single yarn fineness of 0.03 to 0.3 denier polyester-based island-in-the-sea yarn or split yarn of 20 to 30 %, high shrinkage polyester filaments of 1 to 3 denier single yarn fineness of 1 to 3 denier are interlaced to circular knit, dyed, dried, then polyurethane is applied, washed with water and de-DMF, buffing, weight loss, drying and tumbler process A method for producing a circular knitted suede artificial leather is described, characterized in that
이러한 제조방법은 해도사를 방사한 이후에 섬유의 극세화를 위한 감량 공정을 수행해야 한다. In this manufacturing method, after spinning the island-in-the-sea yarn, it is necessary to perform a weight reduction process for microfine fibers.
이는 극세사를 직접 방사하여 제조하는 방법과 비교하여 비효율적이고, 감량에 따른 극세사의 침해로 감촉이 나빠지며, 해성분이 원래 차지하고 있던 부분이 공극으로 남게되어 밀도가 낮아짐에 따라 외관이 나빠지는 문제점이 있다. This is inefficient compared to the method of manufacturing by direct spinning of microfibers, the texture deteriorates due to the invasion of microfibers due to weight loss, and the part originally occupied by the sea component remains as a void, and the appearance deteriorates as the density decreases. .
본 발명은 상기와 같은 문제점을 해결하기 위해, 간소화된 공정으로 외관 품질을 향상시키는 인공피혁의 제조방법을 제공하는 것을 목적으로 한다.In order to solve the above problems, an object of the present invention is to provide a method for manufacturing artificial leather that improves the appearance quality through a simplified process.
상기 과제를 해결하기 위해 본 발명은, 단사 섬도가 0.01~0.5 데니어인 폴리에스테르 극세사와 단사 섬도가 1~5 데니어인 폴리에스테르계 필라멘트를 합사하여 원사를 제조하는 단계; 상기 원사로 환편 또는 경편 조직의 편성물을 제조하는 단계; 상기 편성물을 수축시켜 수축포를 얻는 수축 단계; 상기 수축포에 폴리우레탄을 함침시켜 함침포를 얻는 함침 단계; 상기 함침포의 표면에서 연삭을 하여 기모가 형성된 함침포를 얻는 기모 단계; 및 상기 기모가 형성된 함침포를 염색하는 염색 단계;를 포함한 외관 품질이 향상된 편성물 기재의 인공피혁의 제조방법을 제공한다. In order to solve the above problems, the present invention includes the steps of preparing a yarn by braiding a polyester microfiber having a single yarn fineness of 0.01 to 0.5 denier and a polyester filament having a single yarn fineness of 1 to 5 denier; manufacturing a knitted fabric of circular knitted or warp knitted tissue with the yarn; a shrinking step of shrinking the knitted fabric to obtain a shrinkable fabric; an impregnation step of impregnating the shrink fabric with polyurethane to obtain an impregnated fabric; A raising step of obtaining an impregnated cloth in which raising is formed by grinding on the surface of the impregnated cloth; and a dyeing step of dyeing the impregnated fabric on which the brushing is formed.
또한, 본 발명은 단사 섬도가 0.01~0.5 데니어인 폴리에스테르 극세사 및 단사 섬도가 1~5 데니어인 폴리에스테르계 필라멘트를 합사한 원사로 이루어진 편성물에 폴리우레탄이 함침되어 이루어지는 인공피혁에 있어서, 동마찰 계수가 0.240~0.250인 것을 특징으로 하는 외관 품질이 향상된 편성물 기재의 인공피혁을 제공한다. In addition, the present invention relates to an artificial leather in which polyurethane is impregnated with a knitted yarn made of a polyester microfiber having a single yarn fineness of 0.01 to 0.5 denier and a polyester filament having a single yarn fineness of 1 to 5 denier. It provides an artificial leather of a knitted material with improved appearance quality, characterized in that the coefficient is 0.240 to 0.250.
본 발명에 의하면 폴리에스테르 극세사 및 통상의 폴리에스테르사의 합사로 이루어진 편성물을 수축시킴으로써 감량 공정이 생략된다. 이로 인해 제조공정이 간소화되어 경제적이며, 극세사의 침해가 없고 편성물의 조직의 밀도가 증가하므로 최종적으로 인공피혁에서 외관품질과 촉감이 향상된다. According to the present invention, the weight reduction process is omitted by shrinking the knitted fabric made of the polyester microfiber and the normal polyester yarn braid. Due to this, the manufacturing process is simplified and economical, there is no infringement of microfibers, and the density of the knitted fabric is increased, so that the appearance quality and feel of artificial leather are finally improved.
본 발명은, 원사로 폴리에스테르 극세사 및 통상의 폴리에스테르사를 상호 인터레이스한 인터레이스사를 제조하고, 상기 원사로 환편 또는 경편 조직의 편성물을 제조하여 수축시킨 후, 상기 편성물에 탄성체를 함침시키고 연삭하여 이루어지는, 외관 품질이 향상된 인공피혁에 관한 것이다. The present invention produces an interlaced yarn in which a polyester microfiber and a normal polyester yarn are interlaced with each other as a yarn, and a circular knit or warp knitted structure is prepared with the yarn and contracted, and then the knitted material is impregnated with an elastic body and ground. It relates to artificial leather with improved appearance quality.
상기 폴리에스테르 극세사는, 직접 방사로 제조되어 0.01~0.5 데니어의 섬도를 가지는 것이, 천연 스웨이드 느낌과 부드러운 촉감을 나타낼 수 있다. The polyester microfiber, which is manufactured by direct spinning and has a fineness of 0.01 to 0.5 denier, may represent a natural suede feeling and a soft touch.
이때 섬도가 0.01 데니어 미만이면 통상의 폴리에스테르사와 인터레이스를 하기 어렵고, 0.5 데니어를 초과하면 편성물에서 밀도의 증가가 미미하고 인공피혁에서 촉감이 나빠질 수 있다. At this time, if the fineness is less than 0.01 denier, it is difficult to interlace with a normal polyester yarn, and if it exceeds 0.5 denier, the increase in density in the knitted fabric is insignificant and the feel of artificial leather may deteriorate.
상기 폴리에스테르사는 1~5 데니어의 DTY(Draw Textured Yarn)를 사용할 수 있다. The polyester yarn may use 1-5 denier DTY (Draw Textured Yarn).
상기 인터레이스사는 일반적인 공기 혼섬 장치를 사용하여 가공한 것으로 교락수 50~150개/m인 것을 사용할 수 있다. The interlaced yarn is processed using a general air blending device and may be used with a number of 50 to 150 bridges/m.
교락수가 50개/m 미만일 경우에 기모를 형성할 때에 스웨이드와 같은 촉감을 가지고 균일한 외관을 나타내기가 어렵고, 150개/m를 초과하는 경우에 외관이 불량하고 사절수가 많아 생산성이 저하될 수 있다. When the number of bridges is less than 50/m, it is difficult to show a uniform appearance with a suede-like feel when forming brushing. .
본 발명에 따른 환편(CIRCULAR KNIT) 조직 편성 작업은 상기 인터레이스사를 양면 인터록 또는 양면 이중지 조직으로 환편할 수 있으며, 생지 중량이 150~500g/YD가 되도록 게이지를 조정하여 편성하여 편성물을 제조할 수 있다. In the circular knitting (CIRCULAR KNIT) tissue knitting operation according to the present invention, the interlaced yarn can be circular-knitted with a double-sided interlock or double-sided double-sided tissue, and a knitted fabric can be prepared by adjusting the gauge so that the dough weight is 150-500 g/YD. can
이후 상기 편성물을 열수 또는 고온의 유기 용매에 일정 시간 침지하여 수축시키는 수축 공정을 수행할 수 있다. Thereafter, a shrinkage process of shrinking the knitted fabric by immersing it in hot water or a high-temperature organic solvent for a predetermined time may be performed.
수축에 의해, 편성물이 스웨이드 효과를 나타내도록 볼륨감이 부여되면서, 최종제품인 인공피혁에서 표면의 입모 밀도가 증가하여 외관 품질을 개선하고 유연성과 부드러운 감촉의 감성품질이 향상될 수 있다.As a result of shrinkage, a sense of volume is imparted to the knitted fabric to exhibit a suede effect, and the napped density of the surface of the artificial leather, which is the final product, is increased to improve the appearance quality, and the sensitivity quality of flexibility and soft touch can be improved.
상기 유기 용매는 바람직하게 디메틸설폭사이드(DMSO, Dimethyl Sulfoxide) 또는 디메틸아세트아미드(DMAc, Dimethyl Acetamide)이다. The organic solvent is preferably dimethyl sulfoxide (DMSO, Dimethyl Sulfoxide) or dimethylacetamide (DMAc, Dimethyl Acetamide).
이때 열수 또는 유기 용매에서의 처리는 편성물을 80℃ 이상의 열탕 또는 용매에서 1분 이상 체류시켜 이루어질 수 있다. In this case, the treatment in hot water or an organic solvent may be performed by retaining the knitted fabric in hot water or solvent at 80° C. or higher for 1 minute or longer.
본 발명에서는 인터레이스사를 구성하는 폴리에스테르 극세사에 의해 편성물의 수축이 빨리 일어날 수 있다. 특히, 상기 편성물을 유기 용매로 처리하여 수축을 시키는 것이 짧은 시간에 높은 수축률을 나타내면서 상기 극세사의 침해가 발생하지 않아 매끄럽고 부드러운 촉감을 나타낼 수 있다. In the present invention, the shrinkage of the knitted fabric may occur quickly due to the polyester microfiber constituting the interlaced yarn. In particular, by treating the knitted fabric with an organic solvent to shrink it, a high shrinkage rate is achieved in a short time, and the microfiber does not infringe, so that a smooth and soft touch can be exhibited.
이후 상기 편성물을 폴리우레탄 용액에 침지하여 편성물에 폴리우레탄을 함침시켜 함침포를 얻는 탄성체 함침 공정을 실시할 수 있다.Thereafter, an elastic body impregnation process of immersing the knitted fabric in a polyurethane solution to impregnate the knitted fabric with polyurethane to obtain an impregnated fabric may be performed.
폴리우레탄의 함침량은 인공피혁에서 2~30 중량%인 것이 바람직한데, 함침량이 2 중량% 미만이면 인공피혁의 탄력성이 저하하고, 30 중량%를 초과하면 편성물 고유의 스웨이드 효과보다 폴리우레탄에 의한 느낌이 나타나고 딱딱해져서 바람직하지 못하다. It is preferable that the amount of polyurethane impregnated in artificial leather is 2 to 30% by weight. If the impregnation amount is less than 2% by weight, the elasticity of the artificial leather decreases, and if it exceeds 30% by weight, the polyurethane effect is more than the inherent suede effect of the knitted fabric. It is undesirable because a feeling appears and hardens.
이후, 상기 함침포의 표면을 샌드페이퍼를 이용하여 연삭하여 기모를 형성하고, 염색 후가공을 거쳐 인공피혁을 제조할 수 있다.Thereafter, the surface of the impregnated fabric is ground using sandpaper to form napping, and artificial leather can be manufactured through dyeing and post-processing.
이하에 본 발명을 실시예 및 비교예에 의해 구체적으로 설명한다. 단, 하기 실시예 및 비교예는 본 발명을 예시하기 위한 것일 뿐, 본 발명이 하기의 실시예에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 치환 및 균등한 타 실시예로 변경할 수 있음은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 있어 명백할 것이다. Hereinafter, the present invention will be specifically described by way of Examples and Comparative Examples. However, the following examples and comparative examples are only for illustrating the present invention, and the present invention is not limited by the following examples, and other examples that are substituted and equivalent within the scope not departing from the technical spirit of the present invention It will be apparent to those of ordinary skill in the art to which the present invention pertains.
[실시예 1][Example 1]
1. 인터레이스 사의 제조1. Manufacture of interlaced yarn
직접 방사로 제조되고 단사 섬도가 0.25 데니어인 폴리에틸렌테레프탈레이트 극세사와, 단사 섬도가 2.5 데니어인 폴리에틸렌테레프탈레이트 필라멘트를, 미터당 70개의 교락수를 가지게 인터레이스하여 최종 섬도가 110 데니어인 인터레이스사를 제조하였다. Polyethylene terephthalate microfibers manufactured by direct spinning and having a single yarn fineness of 0.25 denier and a polyethylene terephthalate filament having a single yarn fineness of 2.5 denier were interlaced with 70 interlacing threads per meter to prepare an interlaced yarn having a final fineness of 110 denier.
2. 환편물의 제조2. Manufacturing of circular knitted fabrics
상기 인터레이스사를 이용하여 28 게이지의 인터록 환편물을 제조하였다.A 28 gauge interlock circular knitted fabric was prepared using the interlaced yarn.
그 다음에 상기 환편물을 80℃의 DMSO용액에서 1분간 처리하는 수축 공정을 통해 수축포를 얻었다. Then, a shrinkage fabric was obtained through a shrinkage process of treating the circular knitted fabric in a DMSO solution at 80° C. for 1 minute.
3. 인공피혁의 제조 3. Manufacture of artificial leather
상기 수축포를 폴리우레탄 용액에 침지하여 상기 폴리우레탄을 수축포에 함침시킨 함침포를 제조하였다. The shrink fabric was immersed in a polyurethane solution to prepare an impregnated fabric impregnated with the polyurethane in the shrink fabric.
상기 함침포를 표면과 이면에서 연삭을 하여 기모를 형성하고, 염색 및 환원세정을 하여 인공피혁을 제조하였다. The impregnated fabric was ground on the front and back surfaces to form napping, and artificial leather was manufactured by dyeing and reducing washing.
[실시예 2][Example 2]
상기 실시예 1에서 폴리에틸렌테레프탈레이트 극세사의 단사 섬도가 0.4 데니어이고 폴리에틸렌테레프탈레이트 필라멘트의 단사 섬도가 4 데니어인 것을 사용한 것을 제외하고는, 실시예 1과 동일한 방법을 사용하여 인공피혁을 제조하였다. Artificial leather was manufactured in the same manner as in Example 1, except that in Example 1, the single yarn fineness of the polyethylene terephthalate microfiber was 0.4 denier and the polyethylene terephthalate filament had a single yarn fineness of 4 denier.
[비교예 1] [Comparative Example 1]
상기 실시예 1에서 폴리에틸렌테레프탈레이트 극세사 대신에 용출성분을 감량한 후에 도성분인 폴리에틸렌테레프탈레이트의 최종섬도가 0.25 데니어가 되는 폴리에스테르 해도사를 사용하고, 수축 공정 이후에 수축포를 상압 감량기에서 2% 농도의 수산화나트륨(20g/L) 용액을 사용하여 95℃에서 20분간 처리하여 상기 해도사의 해성분이 용출시키는 감량 공정을 수행한 것을 제외하고는, 실시예 1과 동일한 방법을 사용하여 인공피혁을 제조하였다. In Example 1, a polyester sea-island yarn having a final fineness of 0.25 denier of polyethylene terephthalate, an island component, was used instead of the polyethylene terephthalate microfiber after reducing the elution component. Artificial leather was manufactured using the same method as in Example 1, except that a weight reduction process was performed to elute the sea components of the island-in-the-sea yarn by treatment at 95° C. for 20 minutes using a sodium hydroxide (20 g/L) solution with a concentration of sodium hydroxide (20 g/L). did
[비교예 2] [Comparative Example 2]
상기 비교예 1에서 감량 공정을 생략한 것을 제외하고는, 비교예 1과 동일한 방법을 사용하여 인공피혁을 제조하였다. An artificial leather was manufactured in the same manner as in Comparative Example 1, except that the weight reduction process was omitted in Comparative Example 1.
[비교예 3][Comparative Example 3]
상기 실시예 1에서 폴리에틸렌테레프탈레이트 극세사의 단사 섬도가 1 데니어이고 폴리에틸렌테레프탈레이트 필라멘트의 단사 섬도가 5 데니어인 것을 사용하고, 수축 공정을 생략한 것을 제외하고는, 실시예 1과 동일한 방법을 사용하여 인공피혁을 제조하였다. Using the same method as in Example 1, except that in Example 1, the single yarn fineness of the polyethylene terephthalate microfiber was 1 denier and the single yarn fineness of the polyethylene terephthalate filament was 5 denier, and the shrinkage process was omitted. Artificial leather was manufactured.
상기 실시예 및 비교예에서 제조된 인공피혁에 대해 하기 평가방법에 따라 그 특성을 평가하여 그 결과를 하기 표 1에 나타내었다. The properties of the artificial leathers prepared in Examples and Comparative Examples were evaluated according to the following evaluation method, and the results are shown in Table 1 below.
1. 밀도1. Density
가로 10㎝, 세로 10㎝의 크기로 자른 시료의 후도(㎝)와 무게(g)를 측정하여 아래의 식으로 밀도를 구한다. Measure the thickness (cm) and weight (g) of the sample cut to the size of 10 cm in width and 10 cm in length, and calculate the density by the following formula.
해도사를 사용한 경우에는 감량 공정을 수행한 것의 무게를 측정한다. In the case of using island-in-the-sea yarn, measure the weight of the one that has been subjected to the weight reduction process.
밀도(g/㎤) = 무게 / (가로 × 세로 × 후도)Density (g/㎤) = weight / (width × length × thickness)
2. 동마찰 계수 2. Dynamic friction coefficient
인공피혁을 시료로 하여 ASTM D 1894에 따라 동마찰 계수 측정장비를 이용하여 하중 100gf, 인장속도 500 ㎜/분의 조건에서 측정한다. Using artificial leather as a sample, it is measured under the conditions of a load of 100 gf and a tensile rate of 500 mm/min using a dynamic friction coefficient measuring device according to ASTM D 1894.
동마찰 계수가 작아질수록 시료의 표면에서 매끄러움과 부드러움이 우수해진다. The smaller the coefficient of kinetic friction, the better the smoothness and softness on the surface of the sample.
상기 표 1로부터, 단사섬도가 0.5 데니어 이하인 극세사를 포함한 인터레이스사로 이루어진 부직포(실시예 1 및 2)가, 해도사 용출에 의한 부직포(비교예 1) 및 단사섬도가 1 데니어인 비극세사를 포함한 인터레이스사로 이루어진 부직포(비교예 3)과 비교하여, 밀도가 증가하면서 동마찰계수가 감소하였으므로, 본 발명에 따른 부직포가 인공피혁에서 좀 더 향상된 외관품질과 매끄럽고 부드러운 표면을 제공하는 것이 확인된다. From Table 1, the nonwoven fabric (Examples 1 and 2) made of interlaced yarns including microfibers having a single yarn fineness of 0.5 denier or less was a nonwoven fabric (Comparative Example 1) by sea-island yarn elution and an interlace including non-fiber having a single yarn fineness of 1 denier. Compared with the nonwoven fabric made of yarn (Comparative Example 3), it was confirmed that the nonwoven fabric according to the present invention provides a more improved appearance quality and a smooth and soft surface in artificial leather since the coefficient of kinetic friction decreased as the density increased.
Claims (4)
상기 원사로 환편 또는 경편 조직의 편성물을 제조하는 단계;
상기 편성물을 수축시켜 수축포를 얻는 수축 단계;
상기 수축포에 폴리우레탄을 함침시켜 함침포를 얻는 함침 단계;
상기 함침포의 표면에서 연삭을 하여 기모가 형성된 함침포를 얻는 기모 단계; 및
상기 기모가 형성된 함침포를 염색하는 염색 단계;를 포함한 외관 품질이 향상된 편성물 기재의 인공피혁의 제조방법.Preparing a yarn by braiding a polyester microfiber having a single yarn fineness of 0.01 to 0.5 denier produced by direct spinning and a polyester filament having a single yarn fineness of 1 to 5 denier;
manufacturing a knitted fabric of circular knitted or warp knitted tissue with the yarn;
a shrinking step of shrinking the knitted fabric to obtain a shrinkable fabric;
an impregnation step of impregnating the shrink fabric with polyurethane to obtain an impregnated fabric;
A raising step of obtaining an impregnated fabric in which napping is formed by grinding on the surface of the impregnated fabric; and
A method for producing artificial leather based on a knitted fabric with improved appearance quality, including a dyeing step of dyeing the impregnated fabric with the raised bristle.
상기 원사는 교락수 50~150개/m를 가지는 인터레이스사인 것을 특징으로 하는 외관 품질이 향상된 편성물 기재의 인공피혁의 제조방법.The method of claim 1,
The method for producing artificial leather based on a knitted fabric with improved appearance quality, characterized in that the yarn is an interlaced yarn having 50 to 150 interlaced yarns/m.
상기 수축 단계에서 상기 편성물을 디메틸설폭사이드 또는 디메틸아세트아미드에 침지하여 처리하는 것을 특징으로 하는 외관 품질이 향상된 편성물 기재의 인공피혁의 제조방법.The method of claim 1,
A method for producing artificial leather based on a knitted fabric with improved appearance quality, characterized in that in the shrinking step, the knitted fabric is immersed in dimethyl sulfoxide or dimethyl acetamide.
동마찰 계수가 0.240~0.250인 것을 특징으로 하는 외관 품질이 향상된 편성물 기재의 인공피혁. In the artificial leather made by impregnating polyurethane into a knitted fabric made of a yarn obtained by braiding a polyester microfiber having a single yarn fineness of 0.01 to 0.5 denier and a polyester filament having a single yarn fineness of 1 to 5 denier produced by direct spinning,
An artificial leather based on a knitted fabric with improved appearance quality, characterized in that the coefficient of dynamic friction is 0.240 to 0.250.
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| KR100625110B1 (en) | 2005-03-31 | 2006-09-20 | 케이.엠.에프 주식회사 | Preparation of suede-like artificial polyurethane impregnated leather |
| KR100813459B1 (en) * | 2007-06-25 | 2008-03-17 | 케이.엠.에프 주식회사 | Process of producing suede-like circular knit type artificial leather |
| KR100927646B1 (en) | 2009-05-11 | 2009-11-20 | 케이.엠.에프 주식회사 | Preparation of suede-like microfilament textiles |
| WO2017022387A1 (en) * | 2015-07-31 | 2017-02-09 | 東レ株式会社 | Leather-like fabric |
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| KR100625110B1 (en) | 2005-03-31 | 2006-09-20 | 케이.엠.에프 주식회사 | Preparation of suede-like artificial polyurethane impregnated leather |
| KR100813459B1 (en) * | 2007-06-25 | 2008-03-17 | 케이.엠.에프 주식회사 | Process of producing suede-like circular knit type artificial leather |
| KR100927646B1 (en) | 2009-05-11 | 2009-11-20 | 케이.엠.에프 주식회사 | Preparation of suede-like microfilament textiles |
| WO2017022387A1 (en) * | 2015-07-31 | 2017-02-09 | 東レ株式会社 | Leather-like fabric |
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