KR100332733B1 - Manufacturing method of artificial leather - Google Patents
Manufacturing method of artificial leather Download PDFInfo
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- KR100332733B1 KR100332733B1 KR1019950021785A KR19950021785A KR100332733B1 KR 100332733 B1 KR100332733 B1 KR 100332733B1 KR 1019950021785 A KR1019950021785 A KR 1019950021785A KR 19950021785 A KR19950021785 A KR 19950021785A KR 100332733 B1 KR100332733 B1 KR 100332733B1
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- artificial leather
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- extraction
- nonwoven fabric
- composite fiber
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—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 by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/06—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 by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
- D06N3/08—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 by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products with a finishing layer consisting of polyacrylates, polyamides or polyurethanes or polyester
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
Description
본 발명은 인공피혁 등에 이용되고 있는 피혁상 시트물의 재조방법에 관한 것으로서, 보다 구체적으로는 1데니어 이하의 극세섬유상 구조물에 폴리우레탄 조성물을 함침시켜 구조가 치밀하고 유연할 뿐만아니라 표면품위와 인열강도가 양호한 스웨드조 인공피혁의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing leather-like sheet material used in artificial leather, and more particularly, by impregnating a polyurethane composition in a microfiber structure of less than 1 denier, the structure is not only dense and flexible, but also the surface quality and tear steel The present invention relates to a suede-like artificial leather manufacturing method.
잘 알려진 바와 같이 극세화가 가능한 복합섬유 부직포의 내부에 미세 다공질의 폴리우레탄 탄성체를 습식 가공법으로 충전시키고 섬유의 극세화공정 등 일린의 공정을 거쳐 제조된 피혁상 시트물은 인공피혁의 기본소재로서 널리 사용되어 왔다.As is well known, the leather-like sheets manufactured by filling microporous polyurethane elastomers with a wet processing method in a microfibrous composite fiber nonwoven fabric by a wet processing method, and by the process of Ilin, such as microfiberization process of fibers, are widely used as basic materials of artificial leather. Has been used.
종래, 0.3데니어 이하의 극세섬유 부직포와 폴리우레탄 탄성체로 구성된 피혁상 시트물의 제조방법을 살펴보면 다음과 같다.Conventionally, a method of manufacturing a leather-like sheet composed of an ultrafine fiber nonwoven fabric of less than 0.3 denier and a polyurethane elastic body is as follows.
극세섬유화가 가능한 2∼5데니어의 복합섬유를 개섬, 카딩하고 크로스테핑하여 웨브를 형성한 다음 니들펀칭하여 3차원 교락부직포를 제조한다. 다음에 수축가공을 행하여 밀도를 높임으로써 피혁상 시트물에 충실감(compactness)을 주는 공정, 가성소다로서 복합섬유의 추출성분을 용제하에서 전부 제거함으로써 섬유를 극세화하는 공정, 후가공을 용이하게 하고 피혁상 시트물의 통기성을 높이기 위하여 수용성 바인더로서 폴리비닐알콜이나 카르복실메틸셀룰로오스(CMC) 등의 수용성 고분자물을 가충전하여 부직포의 형태를 안정화시키는 공정, 고분자 탄성중합체인 폴리우레탄을 디메틸포름아미드용액(이하 "DMF"라 약칭함)으로 함침하고 물속에서 응고, 수세하여 부직포 내부에 폴리우레탄 탄성체를 충전시키는 공정, 마지막으로 샌드페이퍼(sand peper)가 장착된 버핑기로 표면의 모우를 정돈해 주고 염색 및 유연제 처리하는 공정 등을 거쳐 유연한 피혁상 시트물로된다. 이런 각 공정들은 인공피혁의 용도, 예를 들면 신발용, 의류용, 잡화용에 따라 순서를 바꿀 수도 있으며 다른 공정을 추가할 수도 있다.2 to 5 denier composite fibers which can be microfiber can be opened, carded and cross-tipped to form a web, and then needle punched to produce a three-dimensional interwoven nonwoven fabric. Next, shrinkage processing is performed to increase the density, thereby providing compactness to the leather-like sheets, and caustic soda. Process for stabilizing nonwoven fabric by filling with water-soluble polymer such as polyvinyl alcohol or carboxymethyl cellulose (CMC) as water-soluble binder to increase the air permeability of leather sheet, dimethylformamide solution (Hereinafter abbreviated as "DMF"), the process of filling the polyurethane elastic material inside the nonwoven fabric by coagulation and washing in water, and finally finishing the surface of the wool with sand paper (buffer) Through a process such as softener treatment, it becomes a flexible leather-like sheet. Each of these processes can be reordered according to the use of artificial leather, for example, for footwear, clothing, and miscellaneous goods, or add other processes.
즉 공지의 제조방법은 부직포 제조공정, 복합섬유의 추출성분을 추출하는 추출공청, 수용성 고분자 전처리공정, 폴리우레탄 함침공정이 필수적이며 이 공정들이 제품의 품질과 특성을 결정짓는 중요한 공정으로 되어 있다.In other words, the known manufacturing method is a non-woven fabric manufacturing process, the extraction process of extracting the extract component of the composite fiber, water-soluble polymer pre-treatment process, polyurethane impregnation process is essential, these processes are important to determine the quality and characteristics of the product.
그러나 상기와 같이 복합섬유를 극세화하는 공정에서 복합섬유의 추출성분 전부를 추출제거함에 있어서 다음과 같은 문제점이 발생하게 된다. 즉 추출성분 추출시 길이방향으로 신장이 과다하게 일어나 경, 위방향 물성 불균형 및 신축성차가 커서 골프장갑(GOLF GLOVE)용이나 의류용 등 박지(薄紙)타입 인공피혁 등의 적용이 어렵고, 둘째는 길이 신장에 따른 표면요철의 과다한 발생으로 폴리우레탄 탄성체부여서 균일하게 함침되지 않아 표면에 폴리우레탄의 부상(浮上)으로 인해 얼룩이 발생되어 얼룩을 제거하기 위해 표면 버핑을 과다하게 하여 물성이 저하되고 라이팅 효과(writing effect)가 발현되지 않아 표면품위가 저하된다.However, in the process of miniaturizing the composite fiber as described above, the following problems occur in the extraction and removal of all the extract components of the composite fiber. In other words, when the extraction component is extracted, excessive elongation occurs in the longitudinal direction, so that the imbalance of physical properties and elasticity in the upper direction is large, making it difficult to apply artificial leather such as golf gloves or clothing, and secondly, length. Due to excessive occurrence of surface irregularities due to elongation, the polyurethane elastic body is not uniformly impregnated, resulting in stains due to the rise of polyurethane on the surface. (writing effect) is not expressed and surface quality deteriorates.
그러므로 본 발명은 상기한 바와 같은 문제점이 없이 구조가 치밀하고 유연할 뿐만아니라 표면품위와 인열강도가 양호한 스웨드조 인공피혁을 제조하는 방법을 제공하는 것을 과제로 한다.Therefore, an object of the present invention is to provide a method for producing a suede artificial leather having a good structure and a good tear strength as well as a compact and flexible structure without the problems described above.
도 1은 추출전 복합섬유의 여러 단면구조를 예시한 도면이고.1 is a view illustrating several cross-sectional structure of the composite fiber before extraction.
도 2는 제1도에 대응하는 복합섬유의 추출후 단면구조를 예시한 도면이다.Figure 2 is a view illustrating a cross-sectional structure after the extraction of the composite fiber corresponding to FIG.
상기한 과제를 해결한 본 발명에 의하면 추출 성분과 섬유형성성 성분으로 되는 극세화가능한 복합섬유 부직포의 추출성분을 용해,추출하여 극세화하는 공정을 포함하는 극세섬유부직포에 고분자 탄성중합체가 충전된 인공피혁을 제조하는 방법에 있어서, 상기 복합섬유 부직포의 추출성분의 용해추출을 1차 및 2차의 두단계로 나누어 그 1차 용해추출은 고분자탄성중합체 부여 전에 복합섬유 부직포로부터 추출성분 전체량중 10∼50%를 용해,추출하고, 2차 용해추출은 고분자 탄성중합체 부여 후에 복합섬유 부직포에 잔존하는 추출성분을 용해.추출하는 것을 특징으로 하는 인공피혁의 제조방법이 제공된다.According to the present invention to solve the above problems is a microfiber non-woven fabric is filled with a polymer elastomer comprising a step of dissolving, extracting and minimizing the extract component of the ultrafine composite fiber nonwoven fabric consisting of the extract component and the fiber-forming component In the method of manufacturing artificial leather, the dissolution extraction of the extraction component of the composite fiber nonwoven fabric is divided into two stages, primary and secondary, and the primary dissolution extraction is performed in the total amount of the extraction component from the composite fiber nonwoven fabric before the polymer elastomer is applied. A method for producing artificial leather is provided, which dissolves and extracts 10 to 50%, and dissolves and extracts the extracted components remaining in the composite fiber nonwoven fabric after the secondary dissolution extraction.
이하 본 발명을 보다 상세하게 설명하기로 한다.Hereinafter, the present invention will be described in more detail.
본 발명에 사용되는 복합섬유는 연속 피브릴 형성이 가능한 고분자 물질을 도성분으로 사용하고 피브릴을 결합하는 바인더 역할을 하는 고분자 물질을 해성분으로 사용한 고분자 상호배열체 섬유(해도형 섬유)가 주로 사용되며, 그 외에 제 1도와 같은 복합섬유가 사용될 수 있다. 물론, 본 발명은 복합섬유 단면형태 또는 성분에 의해 특별히 제한되지 않는다. 통상적으로, 해도형 복합섬유의 경우 도성분으로는 폴리에틸렌테레프탈레이트나 나일론-6 등이 사용되고, 해성분으로는 도성분과 용제용해성이 상이한 폴리스틸렌, 폴리에틸렌, 공중합 폴리에스테르 등이 사용되고 있다.The composite fiber used in the present invention is a polymer inter-array fiber (sea-island fiber) using a polymer material capable of forming continuous fibrils as a island component and a polymer material serving as a binder for binding fibrils as a sea component. In addition, a composite fiber as shown in FIG. 1 may be used. Of course, the present invention is not particularly limited by the composite fiber cross-sectional shape or components. Usually, in the case of island-in-the-sea composite fiber, polyethylene terephthalate, nylon-6, and the like are used as the island component, and polystyrene, polyethylene, copolyester, etc., in which the island component and the solvent solubility are different, are used as the sea component.
특히 부직포의 밀도를 증진시키고 최종용도를 골프장갑용으로 하고자 할 경우에 극세화가공후에 극세섬유를 형성하는 도성분으로서는 나일론-6이 적당하며, 극세화가공에서 추출제거되는 해성분으로는 5-소디움 설포이소프탈산이 공중합된 폴리에스테르, 폴리에틸렌 등이 원사제조의 용이성, 가공성 등에서 적당하다.Particularly, in case of increasing the density of nonwoven fabric and making the final use for golf gloves, nylon-6 is suitable as a fine component to form microfiber after microfiber processing, and 5-sodium as a sea component extracted and removed in microfiber processing Polyester, polyethylene, etc., in which sulfoisophthalic acid is copolymerized, are suitable in terms of ease of yarn production, processability, and the like.
극세화 후 도성분의 섬도는 1데니어 이하이면 가능하지만 특히 유연성을 증가시키기 위해서는 0.3데니어 이하가 보다 양호하다. 이것은 유연한 시트물을 얻기위해서 뿐만 아니라 극세화 처리 후에 극세섬유가 3차원적으로 미세한 교락을 이루어 시트의 강력(强力) 저하를 방지하기 위해서이다.The fineness of the island component after micronization can be 1 denier or less, but in order to increase flexibility, 0.3 denier or less is more preferable. This is not only for obtaining a flexible sheet, but also for preventing the deterioration of the sheet strength by forming a fine entanglement in three dimensions after the micronization treatment.
이와 같은 고분자 상호배열체 섬유는 스테플화하고 통상의 방법으로 카딩, 크로스래핑, 니들 펀칭의 공정을 순차적으로 행하여 3차원적으로 상호 교락된 부직포로 제조된다.Such polymer inter-array fibers are stapled and manufactured in a three-dimensional interwoven nonwoven fabric by performing carding, cross-lapping, and needle punching processes sequentially.
다음에 95℃에서 5∼10분간 열수수축을 행하면 면적대비 10∼20%의 수축이 일어나 밀도가 높아지고, 그 결과 충실감이 부여된다.Next, heat shrinkage at 95 DEG C for 5 to 10 minutes causes shrinkage of 10 to 20% relative to the area, resulting in higher density, and consequently, a sense of fidelity is provided.
다음에 가성소다와 침투제들이 첨가된 용액으로 극세화시킨다. 이 공정에서는 감량시간과 가성소다 함량과의 비가 상당히 중요한 인자이다. 가령, 가성소다의함량이 적으면 감량시간을 길게 하여야 하므로, 작업성을 고려하여 가성소다의 양을 적징수준으로 조절하는 것이 바람직하다.The solution is then micronized with a solution of caustic soda and penetrant. In this process, the ratio of weight loss time to caustic soda content is a very important factor. For example, if the content of caustic soda is small, the weight loss time should be lengthened, it is preferable to adjust the amount of caustic soda to the concentration level in consideration of workability.
본 발명에 따라 이 단계에서 해성분 추출량을 전체 해성분의 전체중량에 대하여 10∼50%를 추출함에 있어서, 감량시간은 5∼15분이 적당하였고, 가성소다의 양은 5∼20 중량%가 바람직하다.According to the present invention, in extracting the sea component extraction amount from 10 to 50% with respect to the total weight of the entire sea component in this step, the reduction time is suitable for 5 to 15 minutes, the amount of caustic soda is preferably 5 to 20% by weight. .
이와 같은 극세화공정에서 해성분을 전체 해성분의 전체중량에 대하여 10∼ 50%만을 1차로 추출하는 이유는 해성분 추출량이 50%를 초과하면 후공정, 예를 들면 폴리비닐알콜 부여공정, 폴리우레탄 함침공정 등에서 장력에 의한 길이신장이 커서 경,위방향 물성차이가 크며 표면에 요철발생이 많아 폴리우레탄(이하 "PU"라 약칭함) 함침시 불균일하게 PU가 함침되어 얼룩이 발생하기 쉬우며, 해성분 추출량이 10% 이하이면 용출공정시 후도 다운(down)이 기대치만큼 일어나기 않아 후도를 맞추기 위해 과다한 버핑(buiffing)을 함으로써 물성이 약하게 될 뿐만아니라 PU가 충실하게 부여되지 않아 치밀감이 없으며 촉감이 푸석푸석한 느낌을 가지게 된다.The reason for extracting only 10-50% of the sea component in the first step of the micronization process is based on the total weight of the entire sea component. When the amount of sea component extraction exceeds 50%, the post-process, for example, polyvinyl alcohol applying process, poly In the urethane impregnation process, the length difference due to tension is large, so the difference in diameter and direction is large, and there are many irregularities on the surface, so when impregnated with polyurethane (hereinafter abbreviated as "PU"), it is easy to cause uneven PU impregnation. If the amount of sea component extraction is less than 10%, after the elution process, the down does not occur as expected. Excessive buffing to meet the thickness results in weak physical properties, and the PU is not faithfully attached to give a dense feeling. It feels soft and soft to the touch.
이렇게 하여 극세화시킨 시트물을 폴리비닐 수용액에 침지하고 적당한 압력으로 스퀴징한 뒤, 110℃ 이상의 온도에서 건조시키면서 칼렌더(calender)로서 칼렌더링(calendering)을 행하면 극세섬유가 존재함으로 해서 칼렌더링 효과가 더욱 더 발현되기가 쉽고 폴리비닐알콜이 섬유표면과 섬유와 섬유의 교차점에 가중전되어 부직포를 안정화시킨다.In this way, the ultra-fine sheet is immersed in a polyvinyl aqueous solution, squeezed at an appropriate pressure, and then calendered as a calender while drying at a temperature of 110 ° C. or higher. Is more easily expressed and polyvinyl alcohol is weighted at the intersection of the fiber surface and the fiber to the fiber to stabilize the nonwoven fabric.
이렇게 형태안정화시킨 포지에 폴리에테르계 폴리우레탄(이하, PU)을 디메틸포름아미드(이하, DMF) 용제로 하여 계면활성제나 착색안료 등을 첨가하여 만든 용액을 함침한다.The form stabilized forge is impregnated with a polyether-based polyurethane (hereinafter referred to as PU) as a dimethylformamide (hereinafter referred to as DMF) solvent and added with a surfactant, a coloring pigment, or the like.
또한 PU의 함량은 함침액의 농도, 함침 롤의 간극, 함침할 부직포의 밀도에 따라 달라지므로 기포의 특성에 따라 조절하여야 한다. 바람직하게, PU의 양은 피혁상 시트 중량에대해 고형분으로 20∼40% 정도이다.In addition, since the content of PU depends on the concentration of the impregnation solution, the gap of the impregnation roll, and the density of the nonwoven fabric to be impregnated, it should be adjusted according to the characteristics of the bubbles. Preferably, the amount of PU is about 20 to 40% by solids based on the weight of the leather sheet.
함침 후 응고조의 온도는 30∼40℃, 응고조내의 DMF 농도는 5∼30%로 하고 수용성 바인더인 폴리비닐알콜을 완전히 제거시키기 위해 80∼90℃에서 충분히 수세를 한다.After impregnation, the temperature of the coagulation bath is 30-40 ° C., the DMF concentration in the coagulation bath is 5-30%, and water washing is sufficiently performed at 80-90 ° C. to completely remove the polyvinyl alcohol which is a water-soluble binder.
다음에 더욱 유연한 성질을 가지도록 하기위해 폴리우레탄이 충전된 함침포를 가성소다 5-20 중량%와 침투제들이 첨가된 용액으로 극세화시켜 잔여추출성분을 2차로 추출한다. 복합섬유의 추출성분은 PU 함침전의 극세화공정에서 일부만을 1차로 추출하고 PU 함침후의 극세화공정에서 잔여추출성분을 2차로 추출하는 것이 바람직한데, 그 이유는 유연 박지의 인공피혁 제조에 있어서 후도 조절이 용이하기 때문이다.Next, in order to have more flexible properties, the polyurethane-impregnated impregnated cloth was refined with a solution containing 5-20% by weight of caustic soda and a penetrant to extract the residual extraction component secondarily. The extraction component of the composite fiber is preferably firstly extracted only part of the ultrafine process before the PU impregnation and the remaining extraction component secondary in the ultrafine process after the PU impregnation, the reason is that in the manufacture of artificial leather of flexible foil It is because adjustment is easy even afterwards.
이렇게 하여 극세화시킨 시트물을 수세, 건조하면 유연하면서도 꺽임성이 적고 촉감이 아주 양호한 피혁상 시트물을 얻게 된다.In this way, when the finer sheet water is washed with water and dried, a leather-like sheet material which is flexible, has little bending property and is very good in touch is obtained.
다만 표면을 고르게 정돈하기 위하여 샌드페이퍼가 장착된 버핑기로 표면을 살짝 버핑할 필요가 있다. 이때 버핑을 과다하게 하면 물성이 저하될 우려가 있으므로 표면을 다듬는 정도로 하는 것이 바람직하다.However, in order to evenly arrange the surface, it is necessary to buff the surface slightly with a buffer equipped with sand paper. At this time, if the buffing is excessive, the physical properties may be lowered.
이하 본 발명을 실시예의 방법으로 상세히 설명하면 다음과 같다. 단, 본 발명은 후술되는 실시예에 한정되지 않는 다는 것을 이해하여야 한다.Hereinafter, the present invention will be described in detail by way of examples. It should be understood, however, that the present invention is not limited to the examples described below.
≪실시예 1≫`` Example 1 ''
나일론-6 50중량부를 도성분으로 5-소디움 술포이소프탈산이 공중합 된 폴리에스테르 50중량부를 해성분으로 한 해도형 복합섬유(제1도a)를 길이 51mm, 섬도 4.3데니어, 크림프수 12-18개/inch의 복합섬유 스테플을 제조하였다.50 parts by weight of nylon-6 as an island component, 50 parts by weight of a polyester composed of 5-sodium sulfoisophthalic acid copolymerized as a sea component is 51 mm long, fineness 4.3 denier, and number of crimps 12- A composite fiber staple of 18 pieces / inch was prepared.
이 섬유를 개섬, 카딩하고 니들 편칭하여 중량 250g/㎡의 3차원 교락 부직포를 제조하였다. 상기 부직포를 95℃의 열수에서 5분간 수축시켰으며, 이때 면적 수축율은 10%였다.This fiber was opened, carded and needle-baked to produce a three-dimensional entangled nonwoven fabric having a weight of 250 g / m 2. The nonwoven fabric was shrunk in hot water at 95 ° C. for 5 minutes, with an area shrinkage of 10%.
이어서 온도가 95℃인 10% 가성소다 수용액 및 이온성 침투제 1%수용액에 5분간 침지하여 추출성분, 즉 해성분의 일부를 제거하고 110℃의 물에서 수세, 건조하였다. 이때 추출성분이 용출율은 추출성분 전체중량에 대하여 12%였다.Subsequently, the mixture was immersed in a 10% aqueous solution of caustic soda at 95 ° C. and 1% aqueous ionic penetrant for 5 minutes to remove some of the extract components, that is, sea components, and washed with water at 110 ° C. and dried. At this time, the dissolution rate of the extract component was 12% based on the total weight of the extract component.
이어서 폴리비닐알콜 5% 수용액을 1차 용출포에 패딩하고 건조하면서 연속적으로 140℃의 칼레렌더로서 칼렌더링하여 표면을 균일하게 하였다.Subsequently, the polyvinyl alcohol 5% aqueous solution was padded in the primary elution cloth and calendered continuously as a calender at 140 ° C. while drying to uniform the surface.
이어서 형태안정화된 포지에 탄성을 부여하기 위해 폴리에테르계 PE(100% 모듈러스 30Kg/㎠) 11%의 DMF용액을 포지에 함침한 후 90%의 갭으로 패딩하고 물에 응고시킨 후 통상의 방법으로 수세, 건조하였다.Subsequently, 11% DMF solution of polyether PE (100% modulus 30Kg / cm 2) was impregnated into the forge, padded with 90% gap, and coagulated in water to impart elasticity to the stabilized form. Washed with water and dried.
다음에 더욱 유연한 성질을 갖도록 10% 가성소다 수용액및 이온성 침투제 1% 수용액에 8분간 추출성분의 용해,추출가공을 연속적으로 행하고 80℃의 물에서 수세, 건조하였다. 이때 섬유는 완전히 극세화되어 약 0.1데니어로 되었고, 섬유 대 PU의 함량비는 65:35이었다. 중량은 225g/㎡, 후도는 0.60mm이었다.Subsequently, dissolution and extraction process of the extraction components were carried out continuously for 8 minutes in a 10% aqueous solution of caustic soda and 1% aqueous solution of an ionic penetrant, and washed with water and dried at 80 ° C. to have more flexible properties. At this time, the fiber was completely micronized to about 0.1 denier, and the content ratio of fiber to PU was 65:35. The weight was 225 g / m 2 and the thickness was 0.60 mm.
다음에 샌드페이퍼 400메쉬로 표면을 버핑하여 다듬어 준뒤 염색을 행하고건조한 뒤 유연제처리하여 인공피혁을 수득하였다.Next, the surface was buffed and trimmed with 400 mesh sand paper, dyed, dried, and softened to obtain artificial leather.
결과의 스웨드조 인공피혁을 다음과 같은 방법으로 물성 및 관능을 시험하였으며, 그 시험결과는 하기 표에 제시된다.The suede-like artificial leather of the resultant was tested for physical properties and sensuality in the following manner, and the test results are shown in the following table.
- 인장강도, 인장신도 : KSK-0520에 의거 측정.-Tensile strength, tensile elongation: measured according to KSK-0520.
- 인열강도 : KSK-0536에 의거 측정-Tear strength: measured according to KSK-0536
- 강신도 : KSK-0539에 의거 측정.Elongation: measured according to KSK-0539.
- 촉감및 외관 : 인공피혁 기술자 5인의 관능시험으로 평가-Feel and appearance: evaluated by sensory test of 5 artificial leather technicians
≪비교예 1≫`` Comparative Example 1 ''
실시예 1과 동일하게 제조한 부직포에 1차 용출시 23% 가성소다 수용액 및 이온성 침투제 1%수용액에 8.5분간 감량가공을 연속적으로 행하여 해성분을 완전 추출하고 80℃의 물에서 수세, 건조하였다. 다음에 실시예 1과 같은 조건으로 PU를 함침하였다. 섬유 대 PU의 함량비는 75:35이었다. 중량은 182g/㎡, 후더는 0.53mm이었다. 다음에 염색 및 유연제처리를 하여 인공피혁을 수득하였다. 결과의 인공피혁을 실시예 1에서 제시하는 방법과 동일한 방법으로 물성 및 관능시험하였으며, 그 시험결과는 하기 표 1에 제시된다.In the same manner as in Example 1, a 23% caustic soda solution and a 1% aqueous solution of ionic penetrant were continuously subjected to weight loss processing for 8.5 minutes. . Next, the PU was impregnated under the same conditions as in Example 1. The content ratio of fiber to PU was 75:35. The weight was 182 g / m 2 and the hood was 0.53 mm. Next, artificial leather was obtained by dyeing and softening treatment. The artificial leather of the result was physical and sensory tests in the same manner as shown in Example 1, the test results are shown in Table 1 below.
[표 1]TABLE 1
상기 표 1에 제시되는 시험결과치로부터 명백히 알 수 있는 바와 같이, 기 존의 방법에 의한 비교예 1의 인공피혁은 촉감이 종이같고(paper-like), 길이 방향으로 신장이 과다하게 일어나 경, 위 물성차이가 클 뿐더러 요철 발생으로 인해 생긴 PU부상으로 표면에 불균일한 반점이 많아 외관이 불량하였으나, 본 발명에 따르는 실시예 1에 의하면 촉감과 외관이 깨끗하고 신축성이 양호하며, 물성이 우수한 인공피혁이 얻어졌다.As can be clearly seen from the test results shown in Table 1, the artificial leather of Comparative Example 1 according to the conventional method is paper-like to the touch, and when the elongation occurs excessively in the longitudinal direction, In addition to the large physical differences and uneven appearance due to uneven spots on the surface due to the PU injury caused by unevenness, the appearance is poor, but according to the first embodiment of the present invention, the touch and appearance are clean, the elasticity is good, and the physical properties are excellent. Was obtained.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102433686A (en) * | 2011-10-10 | 2012-05-02 | 浙江梅盛实业股份有限公司 | Needle-punched non-woven base fabric |
| CN102439221A (en) * | 2008-12-31 | 2012-05-02 | 可隆工业株式会社 | Artificial leather and method for manufacturing the same |
| KR20170085226A (en) * | 2016-01-14 | 2017-07-24 | 코오롱인더스트리 주식회사 | Manufacturing method of artificial leather |
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| KR100339263B1 (en) * | 2000-05-17 | 2002-06-03 | 김상걸 | Process for preparing two layer laid non-woven cloth |
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|---|---|---|---|---|
| JPH01229882A (en) * | 1988-03-07 | 1989-09-13 | Kuraray Co Ltd | Production of artificial leather substrate |
| JPH05339864A (en) * | 1992-06-08 | 1993-12-21 | Kuraray Co Ltd | Flexible artificial leather of suede tone and its production |
| JPH06280152A (en) * | 1993-03-25 | 1994-10-04 | Toyohiko Hikoda | Production of artificial leather |
| JPH07126986A (en) * | 1993-11-02 | 1995-05-16 | Teijin Ltd | Production of nubuck-like artificial leather |
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1995
- 1995-07-22 KR KR1019950021785A patent/KR100332733B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01229882A (en) * | 1988-03-07 | 1989-09-13 | Kuraray Co Ltd | Production of artificial leather substrate |
| JPH05339864A (en) * | 1992-06-08 | 1993-12-21 | Kuraray Co Ltd | Flexible artificial leather of suede tone and its production |
| JPH06280152A (en) * | 1993-03-25 | 1994-10-04 | Toyohiko Hikoda | Production of artificial leather |
| JPH07126986A (en) * | 1993-11-02 | 1995-05-16 | Teijin Ltd | Production of nubuck-like artificial leather |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102439221A (en) * | 2008-12-31 | 2012-05-02 | 可隆工业株式会社 | Artificial leather and method for manufacturing the same |
| US9074317B2 (en) | 2008-12-31 | 2015-07-07 | Kolon Industries, Inc. | Artificial leather and method for manufacturing the same |
| CN102433686A (en) * | 2011-10-10 | 2012-05-02 | 浙江梅盛实业股份有限公司 | Needle-punched non-woven base fabric |
| KR20170085226A (en) * | 2016-01-14 | 2017-07-24 | 코오롱인더스트리 주식회사 | Manufacturing method of artificial leather |
| KR102405906B1 (en) * | 2016-01-14 | 2022-06-03 | 코오롱인더스트리 주식회사 | Manufacturing method of artificial leather |
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