KR20020039598A - Method of fabricating artificial suede using micro-fiber knitted work - Google Patents

Method of fabricating artificial suede using micro-fiber knitted work Download PDF

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KR20020039598A
KR20020039598A KR1020010034085A KR20010034085A KR20020039598A KR 20020039598 A KR20020039598 A KR 20020039598A KR 1020010034085 A KR1020010034085 A KR 1020010034085A KR 20010034085 A KR20010034085 A KR 20010034085A KR 20020039598 A KR20020039598 A KR 20020039598A
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South Korea
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artificial leather
suede
component
elution
microfiber
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KR1020010034085A
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Korean (ko)
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나갑준
전병국
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손기혁
주식회사 동우
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Priority to KR1020010034085A priority Critical patent/KR20020039598A/en
Publication of KR20020039598A publication Critical patent/KR20020039598A/en

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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
    • D06N3/0004—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 ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
    • 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
    • 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
    • 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
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/28—Artificial leather
    • 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
    • D06N3/0015—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 fibres of specified chemical or physical nature, e.g. natural silk
    • D06N3/0036—Polyester fibres
    • 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
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/904—Artificial leather

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

PURPOSE: A process of preparing suede-like artificial leather having a practical strength, feeling similar to natural suede, dye fastness and tear strength and exhibiting low color migration is provided. Whereby, the artificial leather is suitable for use in cloth requiring high flexibility and softness. CONSTITUTION: An elution type polyester fiber is mixed with multifilaments having a single yarn fineness of 1 to 10 denier to form foams in the shape of a fabric, the foam is dyed, impregnated with a polyurethane solution, coagulated and dried. Thereafter, the elution component of the polyester fiber is eluted therefrom and post-processed.

Description

극세사 편성물을 이용한 스웨드조 인공피혁의 제조방법{Method of fabricating artificial suede using micro-fiber knitted work}Method of fabricating artificial suede using micro-fiber knitted work}

본 발명은 인공피혁의 제조방법에 관한 것이며, 더욱 상세하게는 의류용 등의 용도로 사용하기 위해 필요한 고도의 유연성과 신축성을 가지고, 촉감이 부드러우면서, 주름, 색상 등 외관이 뛰어나고, 색상의 이염 염려가 현저히 적은 극세사 편성물을 이용한 스웨드조 인공피혁에 관한 것이다.The present invention relates to a method of manufacturing artificial leather, and more particularly, having a high flexibility and elasticity necessary for use in apparel and the like, soft to the touch, excellent appearance such as wrinkles, colors, color The present invention relates to a suede-like artificial leather using microfiber fabrics with a significantly low dyeing concern.

인공피혁을 제조함에 있어서, 극세사를 이용하여 좀 더 천연의 스웨드에 가까운 촉감을 가진 인공피혁을 제조하는 기술이 개발되어, 인류의 생활을 더욱 풍요롭게 해 줄 것으로 기대되고 있으며, 촉감이나, 색상 등의 개선이나 공정을 좀 더 간략화하기 위한 기술 등 관련 기술이 지속적으로 개발되고 있다.In manufacturing artificial leather, technology for manufacturing artificial leather with a touch closer to natural suede by using microfiber is expected to enrich the life of human beings. Related technologies, such as those to improve or simplify the process, are constantly being developed.

이렇게 극세사를 이용하여 인공피혁을 제조하는 종래기술로서 대표적인 것은 대체로 다음과 같은 공정으로 이루어져 있다.As a conventional technique for manufacturing artificial leather using microfiber as described above, the typical process consists of the following processes.

먼저, 나일론이나 폴리에스테르와 같은 불용성의 섬유성분과 이용성(易溶性)의 폴리머성분을 복합방사한 섬유장 45∼60㎜의 해도형 극세사 스테이플 섬유를 혼타, 카딩, 니들 펀칭하여 부직포 펠트를 제조한 후, 이를 폴리우레탄수지 용액에함침시키고, 수중에서 응고시킨 다음, 건조하여, 알칼리 수용액으로 이용성의 폴리머 성분을 제거하여 섬도 0.05∼0.01 데니어의 극세사로 이루어진 인공피혁을 제조한 다음, 버핑, 염색, 후가공 처리를 하여 완성한다.First, nonwoven fabric felts were prepared by blending, carding, and needle punching 45 to 60 mm island-in-sea type microfiber staple fibers in which spun fiber insoluble fiber components such as nylon and polyester and soluble polymer components were spun. Then, it was impregnated into a polyurethane resin solution, solidified in water, and dried to remove the usable polymer component with an aqueous alkali solution to prepare an artificial leather composed of microfibers having a fineness of 0.05 to 0.01 denier, followed by buffing, dyeing, Finished by post-processing.

그러나, 상기 방법에 의해 제조되는 종래의 부직포 인공피혁은, 부직포의 구조적인 특성상, 제조된 부직포 자체가 부위적으로 섬유의 밀도가 고르지 못하다는 문제점을 가지고 있기 때문에, 최종 제품에 있어서의 부위간의 밀도 차이로 인한 실용상 문제가 있을 뿐만 아니라, 의류용 등으로 사용하기에는 두껍고, 유연성과 신축성이 부족하며, 용출 후에 염색하기 때문에 색의 이염이 심하다는 문제도 있어, 실용상의 용도에 한계가 있었다.However, the conventional nonwoven artificial leather produced by the above method has a problem in that the nonwoven fabric itself has a problem of uneven fiber density in part because of the structural characteristics of the nonwoven fabric. Not only there are practical problems due to the difference, but also thick for use in clothing, lack of flexibility and elasticity, and dyeing after elution, there is also a problem of severe color transfer, there was a limit in practical use.

본 발명의 목적은 상기와 같은 기존의 부직포 형태의 인공피혁의 문제점을 해결하여, 실용적인 강도를 보유하면서, 의류용 등의 고신축성과 유연성을 요하는 용도로 이용하기에 적합하며, 색의 이염도 극히 적어 실용상의 이점이 극히 큰, 극세사 편성물을 기포로 사용하는 스웨드조 인공피혁의 제조방법을 제공하고자 하는 것이다.The object of the present invention is to solve the problems of the conventional non-woven artificial leather as described above, while maintaining practical strength, suitable for use in applications requiring high elasticity and flexibility, such as for clothing, color dyeing degree It is to provide a method of manufacturing a suede-like artificial leather using a microfiber knitted fabric as an air bubble with very small practical advantages.

본 발명의 인공피혁의 제조방법은 다음의 공정을 포함하여 이루어지는 것을 특징으로 하고 있다.The manufacturing method of the artificial leather of this invention is characterized by including the following processes.

극세사화가 가능하도록 복합방사된 용출형 폴리에스테르섬유와, 단사섬도 1∼10 데니어의 멀티필라멘트를 혼용하여 편성물 형태의 기포를 편성한 후;After fusing the fibers in the form of a knitted fabric by using a mixed-spun elution polyester fiber and a single yarn fineness of 1 to 10 deniers to enable microfiberization;

필요에 따라서는, 상기 편성물을 기모, 염색, 폴리비닐알콜 수용액에 함침, 세팅하고;If necessary, the knitted fabric is brushed, dyed, impregnated with polyvinyl alcohol aqueous solution, and set;

폴리우레탄 용액에 함침·응고·건조시킨 후;After impregnation, coagulation and drying in the polyurethane solution;

바람직하게는 버핑하고;Preferably buffing;

알칼리 용액으로 용출성분을 용출시킨 후;Eluting the eluting component with an alkaline solution;

유연제처리, 버핑, 모미와 같은 일련의 후가공을 거쳐서, 상기 극세사의 단사 섬도가 0.06 데니어 이하인 극세사 편성물을 이용한 인공피혁을 완성한다.Through a series of post-processing such as softener treatment, buffing, momi, the artificial leather using a microfiber knitted fabric having a single yarn fineness of 0.06 denier or less is completed.

상기 본 발명에 따른 제조방법에 따라 제조된 인공피혁은, 유연성, 신축성, 주름, 촉감, 외관 등이 천연 피혁과 거의 유사할 뿐만 아니라, 색상의 이염도 없으며, 단사섬도 1∼10 데니어의 멀티필라멘트에 의해 강도가 보강되기 때문에, 의류용 및 기타 유연성과 신축성 등을 필요로 하는 용도로서 적합하다.Artificial leather manufactured according to the manufacturing method according to the present invention, flexibility, elasticity, wrinkles, touch, appearance and the like is almost similar to natural leather, there is no color dye transfer, single yarn fineness multifilament of 1 to 10 denier Since strength is reinforced by, it is suitable as a use for garments, and the use which requires flexibility and elasticity.

상기 본 발명에 따른 인공피혁의 제조방법의 각 단계를 구체적으로 설명한다.Each step of the manufacturing method of artificial leather according to the present invention will be described in detail.

본 발명의 인공피혁의 제조방법에 있어서는, 먼저 단사 섬도 0.06 데니어 이하, 바람직하게는 0.05∼0.02 데니어로 극세사화가 가능하도록 복합방사된 용출형 폴리에스테르섬유와, 단사섬도가 1∼10 데니어인 멀티필라멘트를 혼용하여 편성물 형태의 기포를 편성한다.In the manufacturing method of the artificial leather of the present invention, first, a single-fiber fineness of 0.06 denier or less, preferably an eluted polyester fiber compositely spun to enable microfiberization to 0.05 to 0.02 denier, and a multifilament having a single yarn fineness of 1 to 10 deniers Mixed to form a bubble in the form of a knitted fabric.

이때, 사용되는 상기 복합방사된 용출형 폴리에스테르섬유는, 사이드 바이 사이드형, 해도형, 용융 블렌드법에 의한 성운상, 다도해상 등의 각종 형태의 시판 극세섬유 중에서 선택하여 사용할 수 있으며, 특히 폴리에스테르를 제1성분(섬유성분)으로 하고, 융점 120℃ 이하이며 알칼리 수용액에 가용성인 변성 폴리에스테르를 제2성분(용출성분)으로 하여 복합방사되어 알칼리 수용액에 의해 용출성분을 용출함으로써 극세사의 형태로 되는 해도형의 것을 선택하는 것이 적합하다.In this case, the composite spun-eluted polyester fiber used may be selected from commercially available ultrafine fibers in various forms such as side by side type, island-in-the-sea type, nebula phase, and tea ceremony resolution by melt blending method. Formation of microfiber by eluting an ester as a first component (fiber component), a modified spun yarn having a melting point of 120 ° C. or less and soluble in an aqueous alkali solution as a second component (elution component), and eluting the eluting component with an aqueous alkali solution. It is suitable to select a sea island type to be.

상기 단사섬도 1∼10 데니어의 멀티필라멘트는 최종 제품에서의 강도를 보강하기 위하여 사용되는 것이다. 이 멀티필라멘트의 단사섬도는 제품의 촉감이나 유연성 및 강도 보강효과가 조화될 수 있는 범위에서 선택된 것이며, 특히 단사섬도 2∼3 데니어의 것을 사용하는 것이 바람직하다. 또한, 상기 멀티필라멘트는 최종 가공된 기포 중량의 약 25∼45%를 차지하도록 사용하는 것이 바람직하다. 이 값이 25% 미만으로 되면, 강도보강효과가 충분하지 않을 염려가 있으며, 45%를 넘게 되면, 제품의 촉감이나 유연성 등 극세사를 이용한 제품에서 얻을 수 있는 효과를 감소시킬 수 있어 바람직하지 않다.The single filament fine multifilament of 1 to 10 denier is used to reinforce the strength in the final product. The single filament fineness of the multifilament is selected in the range in which the feel, flexibility and strength reinforcing effect of the product can be harmonized. Particularly, the single filament fineness of 2-3 denier is preferably used. In addition, the multifilament is preferably used to occupy about 25 to 45% of the final processed bubble weight. If this value is less than 25%, there is a fear that the strength reinforcing effect is not sufficient, and if it exceeds 45%, it is not preferable because it can reduce the effect that can be obtained from a product using a microfiber, such as the feel and flexibility of the product.

한편, 상기 기포로서의 편성물의 편성 형태는 특별히 제한되는 것은 아니지만, 상기 극세사와 상기 단사섬도 1∼10 데니어의 멀티필라멘트가 각각 표면과 이면에 나타나도록 제편된 경편 트리코트지의 형태를 이용하는 것이 최종제품의 표면의 촉감 및 유연성 등을 최대한 발휘할 수 있게 할 수 있기 때문에 바람직하다.On the other hand, the knitted form of the knitted fabric as the bubble is not particularly limited, but it is preferable to use the form of warp knitted tricoat paper in which the microfilaments of the microfiber yarn and the single yarn fineness of 1 to 10 denier appear on the front and back surfaces, respectively. It is preferable because it can make the surface feel, flexibility, and the like maximized.

기포를 편성한 후에는, 우레탄의 함침 전에, 필요에 따라 상기 기포를 기모, 염색, 폴리비닐알콜 수용액 함침하여 열세팅하는 등, 최종 제품의 품질을 향상하기 위한 일련의 공정을 거치게 되는데, 이들 공정은 이 분야에서의 알려진 통상의 방법을 통해 이루어질 수 있다.After the formation of the bubbles, a series of steps are performed to improve the quality of the final product, such as raising, dyeing, and thermally setting the bubbles as necessary before urethane impregnation. Can be accomplished through conventional methods known in the art.

다만, 본 발명의 제조방법에 있어서, 최종 제품의 색상에 따라서는 상기 염색공정을 생략할 수도 있지만, 염색을 해야 할 색상인 경우에는 함침 및 용출 전에 실시하여, 함침 및 용출공정에서 미고착된 염료가 제거되어 최종 제품에서의 견뢰도가 향상되도록 하는 것이 바람직하다. 염색은, 예컨대 극세사 염색에 적합한 분산염료를 선택하여 고온고압염색법으로 염색한 후, 후처리과정을 거쳐 미고착 염료를 제거하는 방법으로 실시할 수 있다.However, in the manufacturing method of the present invention, the dyeing process may be omitted depending on the color of the final product, but in the case of the color to be dyed, the dye is unfixed in the impregnation and elution process before impregnation and elution. Is preferably removed to improve the fastness in the final product. The dyeing may be carried out by selecting a disperse dye suitable for microfiber dyeing, dyeing by high temperature and high pressure dyeing, and then removing the unfixed dye through a post-treatment process.

염색 후에는 세팅공정을 통해, 기포를 안정화시킨다. 세팅은 열세팅만을 실시할 수도 있지만, 폴리비닐알코올과 같은 수용성 고분자의 3∼15% 수용액에 패딩, 건조한 후, 칼렌더링하여 표면을 평활하게 하는 방법으로 실시할 수도 있다. 이러한 폴리비닐알코올 등의 수용성 고분자를 처리하면, 기포의 형태 안정화를 도모할 수 있을 뿐만 아니라, 후속 폴리우레탄 함침공정에서 폴리우레탄이 섬유와 과도하게 접착되어 촉감이 딱딱해지는 것을 방지하는 효과도 얻을 수 있다.After dyeing, bubbles are stabilized through a setting process. The setting may be performed only by thermal setting. Alternatively, the setting may be performed by padding and drying in a 3-15% aqueous solution of a water-soluble polymer such as polyvinyl alcohol, and then calendering to smooth the surface. By treating such a water-soluble polymer such as polyvinyl alcohol, not only can the foam stabilize the shape, but also the effect that the polyurethane is excessively adhered to the fiber in the subsequent polyurethane impregnation step to prevent the touch from becoming hard. have.

상기 세팅공정의 후에는, 폴리우레탄 함침공정을 수행하게 된다. 폴리우레탄 함침은 폴리우레탄 탄성체가 갖는 특유의 유연한 탄성, 치밀감 등에 의해 천연의 피혁에서와 같은 촉감을 인공피혁에 부여하기 위해 수행된다.After the setting step, the polyurethane impregnation step is performed. Polyurethane impregnation is performed to give the artificial leather a touch as in natural leather by the unique flexible elasticity, denseness, etc. of the polyurethane elastic body.

폴리우레탄 함침공정은 대체로, 기포를 폴리우레탄의 수지용액에 함침한 후, 응고액에 침지하여 폴리우레탄을 응고시키고, 수세, 건조하는 공정으로 이루어진다.The polyurethane impregnation process generally consists of impregnating bubbles in a resin solution of polyurethane, and then immersing in the coagulation liquid to solidify the polyurethane, washing with water, and drying.

인공피혁의 제조에서 사용되는 폴리우레탄 수지 용액은 분자량 500∼4,000의 폴리올과 디이소시아네이트로 이루어진 선상의 프리고분자 및 사슬연장제를 디메틸포름아미드나 디메틸아세트아미드와 같은 용매에 용해한 것이다.The polyurethane resin solution used in the manufacture of artificial leather is obtained by dissolving a linear prepolymer and a chain extender composed of a polyol having a molecular weight of 500 to 4,000 and a diisocyanate in a solvent such as dimethylformamide or dimethylacetamide.

상기 폴리올로서는 폴리에스테르계, 폴리에테르계, 폴리에테르에스테르공중합계, 폴리카보네이트계 등을 들 수 있다. 폴리에테르계의 폴리올로서는 폴리에틸렌글리콜, 폴리프로필렌글리콜, 폴리테트라메틸렌글리콜 등이 있으며, 이들 중에서도 용융점 및 2차 전이온도가 낮으며, 탄성회복 및 기계적 성질이 우수하기 때문에 폴리테트라메틸렌글리콜이 가장 바람직하다. 폴리에스테르계 폴리올은 폴리에테르계에 비해 가격이 저렴하고 염소수에 대한 내성이 강하지만, 내가수분해성이 약하다는 단점이 있다. 상기 디이소시아네이트로는 통상 메탄디페닐4,4'-디이소시아네이트나 톨루엔디이소시아네이트가 주로 사용된다. 사슬연장제로서는 1,4-부탄디올과 같은 저분자량의 디올이나, 히드라진, 에틸렌디아민, 프로필렌디아민과 같은 디아민이 사용가능하다. 그리고, 본 발명의 인공피혁 제조방법에서 사용하는 폴리우레탄 수지 용액에는 계면활성제나 착색 안료, 산화방지제 등을 첨가할 수 있다.Examples of the polyols include polyesters, polyethers, polyether ester copolymers, and polycarbonates. Polyether polyols include polyethylene glycol, polypropylene glycol, polytetramethylene glycol, and the like. Among them, polytetramethylene glycol is most preferable because of its low melting point and secondary transition temperature, and excellent elastic recovery and mechanical properties. . Polyester-based polyols are cheaper and more resistant to chlorine water than polyethers, but have a weak hydrolysis resistance. As said diisocyanate, methane diphenyl 4,4'- diisocyanate and toluene diisocyanate are mainly used. As the chain extender, a low molecular weight diol such as 1,4-butanediol or a diamine such as hydrazine, ethylenediamine or propylenediamine can be used. In addition, a surfactant, a color pigment, an antioxidant, or the like can be added to the polyurethane resin solution used in the artificial leather production method of the present invention.

함침한 기포는, 폴리우레탄의 비용제계나 용제 및 비용제의 혼합계에서 응고하고, 50∼70℃의 열수에서 수세한 후, 바람직하게는 열풍 건조 등의 방법으로 건조한다.The impregnated bubble is solidified in a non-polyurethane system, a solvent and a non-polyurethane system, washed with hot water at 50 to 70 ° C, and then preferably dried by hot air drying or the like.

폴리우레탄 함침공정이 완료된 후에는, 과함침된 폴리우레탄 및 표피층의 폴리우레탄을 제거하여 표면상태를 균일하게 하기 위하여, 필요에 따라 연마지(샌드페이퍼)로 표면을 버핑하는 공정을 거친다.After the polyurethane impregnation process is completed, the surface is subjected to a step of buffing the surface with abrasive paper (sandpaper) as necessary in order to remove the over-impregnated polyurethane and the polyurethane of the skin layer to make the surface uniform.

용출성분의 용출은, 용출성분이 상기한 알칼리 가용성의 공중합 폴리에스테르인 경우에는 2∼5%의 가성소다 수용액 등의 알칼리 수용액으로, 95∼105℃의 온도에서 30∼40분간 처리한 후, 수세를 통해 가성소다 성분을 제거함으로써 수행된다. 이때, 상기한 바와 같이 미염착된 염료가 제거되기 때문에, 본 발명의 방법에 따라 제조된 인공피혁은 우수한 견뢰도를 달성하여 색의 이염이 방지되는 효과도 아울러 달성된다. 용출성분이 알칼리 가용성의 폴리에스테르가 아니라, 폴리에틸렌으로 이루어진 것을 사용하는 경우에는 톨루엔이나 퍼클로로에틸렌과 같은 용제를 이용하여 용출을 수행한다.When the eluting component is an alkali-soluble copolyester as described above, the eluting component is washed with water in an alkali aqueous solution such as 2-5% aqueous solution of caustic soda at a temperature of 95 to 105 ° C for 30 to 40 minutes, and then washed with water. By removing the caustic soda component through. At this time, since the undyed dye is removed as described above, the artificial leather produced according to the method of the present invention achieves excellent fastness and also achieves the effect of preventing color transfer. When the elution component is made of polyethylene instead of alkali-soluble polyester, elution is performed using a solvent such as toluene or perchloroethylene.

용출이 완료된 다음에는, 최종 제품의 용도에 따라 유연제나 대전방지제와 같은 가공제의 처리, 버핑, 모미 공정 등의 일련의 후가공을 거쳐, 표면 입도가 일정하고 기모상태가 균일한 스웨드조의 인공피혁 제품을 얻는다. 이들 공정은 본 발명이 속하는 기술분야에 있어서 사용되는 통상의 방법에 따라 수행할 수 있다.After elution is completed, suede-like artificial leather products with a constant surface granularity and uniform brushing are subjected to a series of post-processing such as processing, buffing, and woolening process, such as softeners and antistatic agents, depending on the purpose of the final product. Get These processes can be carried out in accordance with conventional methods used in the art.

이하에서는, 이상 설명한 본 발명의 인공피혁의 제조방법을 구체적인 실시예와 비교예를 통해 설명한다.Hereinafter, the manufacturing method of the artificial leather of the present invention described above will be described through specific examples and comparative examples.

실시예Example

실시예Example

단사섬도 0.02∼0.05 데니어로 극세사화가 가능한 알칼리 용출형 해도형 극세사 폴리에스테르 섬유와 75 d/24 fil의 멀티필라멘트 30%를 혼용하여, 두께가 1.0㎜, 중량이 310 g/m ×60inch인 트리코트 원단을 편성하여 인공피혁 제조를 위한 기포로 하였다.Tricot with a thickness of 1.0 mm and a weight of 310 g / m × 60 inch by mixing alkali elution type island-in-sea type microfiber polyester fiber which can be microfinished with 0.02 ~ 0.05 denier and multi-filament of 75 d / 24 fil Fabrics were knitted to form bubbles for artificial leather.

상기 기포를 3% 폴리비닐알코올 수용액에 함침, 건조한 후, 89~92℃ 범위의 온도에서 4 m/min의 속도로, 기포지 두께의 80% 두께가 되도록 카렌더링하여 표면을 평활하게 한 다음, 기포의 표면을 4회, 이면을 1회 기모하였다. 이 기포를 분산염료(상품명 세리렌, 영국 요오크셔사제) 총 8.0% o.w.f.를 사용하여 130℃의 온도에서 40분간 고온고압염색법으로 염색한 후, 후처리를 실시하고, 185℃의 온도에서 폭 58인치로 열세팅하였다.After impregnating the bubble with a 3% polyvinyl alcohol aqueous solution, and drying it, the surface was smoothed by calendering at a rate of 4 m / min at a temperature ranging from 89 to 92 ° C. to 80% of the thickness of the bubble paper, The surface of the bubble was raised 4 times and the back surface was brushed once. This bubble was dyed by high temperature and high pressure dyeing for 40 minutes at a temperature of 130 ° C. using 8.0% owf of a disperse dye (trade name Sericene, manufactured by Yorkshire, UK), followed by post-treatment, and width at a temperature of 185 ° C. Heat set to 58 inches.

상기 열세팅된 기포를, 고형분 함량 30%인 에테르계 폴리우레탄수지와 착색안료를 디메틸포름아미드에 희석한 15%의 폴리우레탄용액에 함침하고, 맹글을 통과시켰다. 이때, 맹글의 간격은 기포 두께의 90%가 되도록 조정하였다.The thermally set bubbles were impregnated with 15% polyurethane solution diluted with ether-based polyurethane resin and colored pigment having a solid content of 30% in dimethylformamide and passed through mangled. At this time, the spacing of the mangles was adjusted to be 90% of the bubble thickness.

폴리우레탄수지 함침한 트리코트지 기포를 디메틸포름아미드의 15% 수용액에 함침하여, 응고시킨 후, 수세, 건조하였다.The foamed tricot paper impregnated with a polyurethane resin was impregnated with a 15% aqueous solution of dimethylformamide, and after coagulation, washed with water and dried.

상기 폴리우레탄 함침공정을 마친 상태의 트리코트지의 표면을 #150, #180의 샌드페이퍼를 이용하여 2회 버핑하여, 과함침된 폴리우레탄 및 표피층의 폴리우레탄을 제거함으로써, 용출공정에 들어가기 전에 일단 표면 상태를 정리하였다.The surface of the tricot paper after the polyurethane impregnation process is buffed twice using sandpaper of # 150 and # 180 to remove the over-impregnated polyurethane and the polyurethane of the skin layer. The state is summarized.

다음으로, 상기 트리코트지를 가성소다 3% 수용액에서 98℃의 온도로 40분간 처리한 후, 수세를 통하여 잔류 가성소다를 제거함으로써, 극세사중의 용출성분을 제거하였다.Next, the tricot paper was treated with a 3% aqueous solution of caustic soda at a temperature of 98 ° C. for 40 minutes, and then the remaining caustic soda was removed by washing with water to remove the eluted component in the microfiber.

용출공정이 완료된 인공피혁 반제품을 실리콘계 유연제로 처리하고, 턴블러 모미기를 이용하여 모미하여, 극세사 트리코트지를 이용한 스웨드조 인공피혁제품을 완성하였다.The artificial leather semi-finished product of the elution process was treated with a silicone-based softener, and finished using a turntable hair mill, thereby completing a suede artificial leather product using a microfiber tricoat paper.

본 제조된 인공피혁은 표면 입도가 일정하고, 기모상태가 균일하며, 천연피혁과 유사한 주름을 가지는 등 외관이 뛰어나고, 촉감이나, 유연성도 뛰어남을 확인할 수 있었다.The manufactured artificial leather has a uniform surface granularity, a uniform raising state, and a wrinkle similar to that of natural leather, which is excellent in appearance, and has excellent touch and flexibility.

비교예Comparative example

제1성분을 나일론으로 하고, 제2성분을 융점 103℃, 용융지수 70인 폴리에스테르로 하고, 상기 제1성분과 제2성분의 중량비를 65:35로 하여 복합방사된 단사섬도 3 데니어, 길이 55㎜의 단사섬도 0.02∼0.05 데니어로 극세사화가 가능한 해도형 극세사 스테이플 화이버를 오프닝, 카아딩, 크로스랩핑 및 니들 펀칭하여 3차원 교락된 형태의 중량 290g/㎡, 밀도 0.20g/㎥ 의 고밀도 부직포 펠트를 제조하여, 본 비교예에 있어서의 인공피혁 제조의 기포로 하였다.The single yarn fineness was 3 denier, the length of the composite spun yarn, the first component is nylon, the second component is a polyester having a melting point of 103 ° C. and a melt index of 70, and the weight ratio of the first component and the second component is 65:35. High-density nonwoven felt with 290g / m² and density 0.20g / m3 in three-dimensional entangled shape by opening, carding, cross-lapping and needle punching the island-in-the-sea microfiber staple fiber, which can be microfinished with 0.02 ~ 0.05 denier of 55mm single yarn fineness Was prepared and it was set as the bubble of the artificial leather manufacture in this comparative example.

상기 기포를 3% 폴리비닐알코올 수용액에 함침, 건조한 후, 89~92℃ 범위의 온도에서 4 m/min의 속도로, 부직포 기포지 두께의 80% 두께로 카렌더링하여 표면을 평활하게 하였다.The bubble was impregnated with 3% polyvinyl alcohol aqueous solution, dried, and then calendered at a rate of 4 m / min at a temperature in the range of 89-92 ° C. to a thickness of 80% of the thickness of the nonwoven bubble paper to smooth the surface.

다음으로, 상기 부직포 펠트를 고형분 30%의 에테르계 폴리우레탄 용액을 디메틸포름아미드에 15% 농도로 용해한 용액에 함침, 응고하여, 수세, 건조한 다음, 98℃의 가성소다 3% 수용액에 40분간 처리하여 제2성분인 폴리에스테르성분을 용출, 제거하고, #180 및 #220의 샌드페이퍼를 이용하여 표면 버핑을 실시하였다.Next, the nonwoven felt was impregnated with a solution of a 30% solids-based polyurethane polyurethane solution dissolved in dimethylformamide at a concentration of 15%, solidified, washed with water, dried, and then treated with a 3% aqueous solution of caustic soda at 98 ° C. for 40 minutes. The polyester component as a second component was eluted and removed, and surface buffing was performed using sandpaper of # 180 and # 220.

이 버핑지를 블랙의 산성염료 8% o.w.f.를 사용하여 염색한 후, 고착처리를 하고, 대전방지제 및 유연제 처리를 한 후, #300의 샌드페이퍼로 버핑하여, 극세사 부직포 인공피혁 제품을 얻었다.The buffing paper was dyed with black acid dye 8% o.w.f., then fixed, treated with antistatic agent and softener, and then buffed with # 300 sandpaper to obtain a microfiber nonwoven artificial leather product.

실시예 및 비교예에서 제조한 인공피혁을 시료로 하여, 각각 염색견뢰도와 인열강도를 측정하여 그 결과를 표 1에 나타내었다.Using the artificial leather prepared in Examples and Comparative Examples as a sample, the color fastness and tear strength were measured, respectively, and the results are shown in Table 1.

하기 표 1에 나타낸 바와 같이, 본 발명에 따른 방법에 따라 제조한 인공피혁인 실시예의 인공피혁은 세탁 및 마찰견뢰도가 모두 4급 이상으로 실용상 문제가 없는 수준이 얻어졌지만, 비교예에서 제조한 인공피혁은 세탁 및 마찰 견뢰도가 2∼2.5급 수준으로 모두 기준에 미달하였다. 또한, 인열강도에서도 본 발명의 방법에 따라 제조한 실시예의 경우가 비교예에 비해 2배 가량 높아, 본 발명의 인공피혁은 촉감이나 유연성 뿐만 아니라, 강신도의 측면에서도 기존 제품보다 우수함을 확인할 수 있었다.As shown in Table 1 below, the artificial leather of the embodiment of the artificial leather manufactured according to the method according to the present invention, washing and friction fastness of all grades 4 or more obtained a practically no problem, but prepared in the comparative example The artificial leathers did not meet the standards of washing and friction fastness level 2 ~ 2.5. In addition, in the case of the tear strength of the embodiment prepared according to the method of the present invention is about 2 times higher than that of the comparative example, it can be seen that the artificial leather of the present invention is superior to the existing product in terms of ductility and flexibility, as well as the strength. there was.

세탁(오염) 견뢰도1(급)Washing (fastness) fastness 1 (grade) 마찰견뢰도2(급)Friction fastness 2 (grade) 인열강도3(㎏)Tear strength 3 (㎏) 면if 나일론nylon 폴리에스테르Polyester 건key 습Wet 가로horizontal 세로Vertical 실시예 1Example 1 4.04.0 4.04.0 4.54.5 4.04.0 4.04.0 2.322.32 2.782.78 비교예 1Comparative Example 1 2.02.0 2.02.0 2.52.5 2.52.5 2.02.0 1.201.20 1.481.48

주)1: 세탁견뢰도 KS K 0210Note 1: Color fastness to laundry KS K 0210

2: 마찰견뢰도 KS K 04302: friction fastness KS K 0430

3: 인열강도 KS K 05353: tear strength KS K 0535

본 발명의 제조방법에 따르면, 유연성과 신축성 및 촉감이 천연 스웨드에 유사하며, 염색 견뢰도와 인열 강도가 높아 실용성이 매우 우수한 스웨드조 인공피혁을 제조할 수 있으며, 제조된 인공피혁은 의류용 등의 유연성과 신축성을 요하는 용도로 적합하다.According to the manufacturing method of the present invention, the flexibility and elasticity and the touch is similar to natural suede, high dyeing fastness and tear strength can be manufactured suede artificial leather with excellent practicality, the manufactured artificial leather is for clothing Suitable for applications requiring flexibility and elasticity.

Claims (5)

하기 단계를 포함하여 이루어지는 것을 특징으로 하는 극세사 편성물을 이용한 스웨드조 인공피혁의 제조방법:Method for producing a suede-like artificial leather using a microfiber knitted fabric comprising the following steps: 극세사화가 가능하도록 복합방사된 용출형 폴리에스테르섬유와, 단사섬도 1∼10 데니어의 멀티필라멘트를 혼용하여 편성물 형태의 기포를 편성하는 단계;Forming a bubble in the form of a knitted fabric by using a mixed-spun elution polyester fiber and a single yarn fineness of 1 to 10 deniers to enable microfiberization; 상기 기포를 폴리우레탄 용액에 함침·응고·건조시키는 단계;Impregnating, coagulating and drying the bubble in a polyurethane solution; 복합방사된 용출형 폴리에스테르 섬유의 용출성분을 용출시키는 단계; 및Eluting the eluting component of the composite spun-eluted polyester fiber; And 후가공 단계.Finishing step. 제1항에 있어서, 상기 기포의 편성 후, 폴리우레탄 용액 함침전에 기포를 염색하는 단계를 거치는 것을 특징으로 하는 극세사 편성물을 이용한 스웨드조 인공피혁의 제조방법.The method of manufacturing suede-like artificial leather using a microfiber knit fabric according to claim 1, wherein after the knitting of the bubbles, the steps of dyeing the bubbles before the impregnation of the polyurethane solution are carried out. 제1항에 있어서, 상기 극세사화가 가능하도록 복합방사된 용출형 폴리에스테르섬유의 용출 후의 단사섬도가 0.06 데니어 이하인 것을 특징으로 하는 극세사 편성물을 이용한 스웨드조 인공피혁의 제조방법.The method of manufacturing a suede-like artificial leather using a microfiber knit fabric according to claim 1, wherein the single yarn fineness after elution of the eluted polyester fiber compositely spun to enable microfiberization is 0.06 denier or less. 제1항에 있어서, 상기 폴리우레탄 용액에는 착색 안료가 첨가되는 것을 특징으로 하는 극세사 편성물을 이용한 스웨드조 인공피혁의 제조방법.The method of producing suede artificial leather using a microfiber knit fabric according to claim 1, wherein a colored pigment is added to the polyurethane solution. 제1항에 있어서, 상기 복합방사된 용출형 폴리에스테르섬유는 폴리에스테르를 제1성분(섬유성분)으로 하고, 융점 120℃ 이하이며 알칼리 수용액에 가용성인 변성 폴리에스테르를 제2성분(용출성분)으로 하여 복합방사된 것이며, 상기 용출공정은 알칼리 수용액에 의해 이루어지는 것을 특징으로 하는 극세사 편성물을 이용한 스웨드조 인공피혁의 제조방법.The method of claim 1, wherein the composite spun-eluted polyester fiber comprises polyester as the first component (fiber component), and the modified polyester soluble in an aqueous alkali solution having a melting point of 120 ° C. or lower and a second component (elution component). The method of producing a suede artificial leather using a microfiber knitted fabric, characterized in that the composite spun, the elution step is made of an aqueous alkali solution.
KR1020010034085A 2001-06-16 2001-06-16 Method of fabricating artificial suede using micro-fiber knitted work KR20020039598A (en)

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KR100469753B1 (en) * 2002-08-31 2005-02-02 케이.엠.에프 주식회사 Method for producing microfilament suede-like textiles
KR100588596B1 (en) * 2005-03-31 2006-06-14 케이.엠.에프 주식회사 Preparation of suede-like artificial polyurethane impregnated leather having low migration
KR100614625B1 (en) * 2003-08-30 2006-08-21 주식회사 코오롱 A suede-like warp knit with excellent appearance and touch, and a process of preparing the same
KR100681375B1 (en) * 2003-06-20 2007-02-09 주식회사 코오롱 A suede like fabrics with excellent filling of weight and thickness
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

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JPS5366402A (en) * 1976-11-25 1978-06-13 Kanebo Ltd Production of suede like fabric
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KR0159079B1 (en) * 1996-05-04 1998-12-15 김상응 Method of manufacturing polyester group artificial leather
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KR20020000434A (en) * 2000-06-26 2002-01-05 구광시 A knitting fabric having an excellent touch and saturation of polyurethane resin

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100469753B1 (en) * 2002-08-31 2005-02-02 케이.엠.에프 주식회사 Method for producing microfilament suede-like textiles
KR100681375B1 (en) * 2003-06-20 2007-02-09 주식회사 코오롱 A suede like fabrics with excellent filling of weight and thickness
KR100614625B1 (en) * 2003-08-30 2006-08-21 주식회사 코오롱 A suede-like warp knit with excellent appearance and touch, and a process of preparing the same
KR100588596B1 (en) * 2005-03-31 2006-06-14 케이.엠.에프 주식회사 Preparation of suede-like artificial polyurethane impregnated leather having low migration
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

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