KR19980014943A - Manufacturing method of artificial leather using high density nonwoven fabric felt - Google Patents
Manufacturing method of artificial leather using high density nonwoven fabric felt Download PDFInfo
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- KR19980014943A KR19980014943A KR1019960034124A KR19960034124A KR19980014943A KR 19980014943 A KR19980014943 A KR 19980014943A KR 1019960034124 A KR1019960034124 A KR 1019960034124A KR 19960034124 A KR19960034124 A KR 19960034124A KR 19980014943 A KR19980014943 A KR 19980014943A
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Abstract
본 발명은 고밀도 부직포 펠트를 이용한 인공피혁의 제조방법에 관한 것이다.The present invention relates to a method for producing artificial leather using a high density nonwoven fabric felt.
고수축성 섬유와 저수축성 섬유를 7 : 3 ∼ 3 : 7 의 비율로 혼합하여 웨브를 형성, 적층한 후 니들펀칭하여 만든 부직포 펠트를 열처리에 의해 면적을 20∼80%로 수축시켜 밀도가 0.22g/㎤ ∼ 0.40g/㎤로 되게 한 부직포 펠트를 기포로 사용하여 인공피혁을 제조하는 방법이다.The nonwoven felt formed by forming and laminating webs by mixing the high-shear-forming fibers and the low-shrinking fibers at a ratio of 7: 3 to 3: 7 and then needle-punching was shrunk by heat treatment to an area of 20 to 80% / Cm < 3 > to 0.40 g / cm < 3 > is used as bubbles to produce artificial leather.
본 발명에 따르면 종래의 저밀도 부직포를 이용한 인공피혁에 비해 매우 부드럽고 방추성이 뛰어난 인공피혁을 제조할 수 있다.According to the present invention, it is possible to produce an artificial leather which is very soft and excellent in drivability compared with artificial leather using a conventional low-density nonwoven fabric.
Description
본 발명은 인공피혁의 제조방법에 관한 것으로서, 특히 고밀도의 부직포 펠트를 이용하여 부드럽고 방추성이 양호한 인공피혁을 제조하는 방법에 관한 것이다.The present invention relates to a method for producing an artificial leather, and more particularly, to a method for producing an artificial leather having a smooth and smooth running property by using a high density nonwoven fabric felt.
부직포 펠트를 이용하여 인공피혁을 제조함에 있어서 종래에는 밀도가 낮은 부직포를 이용하게 됨으로써, 제품의 밀도가 균일하지 못하고 표면 평활성, 촉감, 방추성이 좋지 않게 되는 문제점이 있었다.In manufacturing artificial leather using nonwoven fabrics, conventionally, a nonwoven fabric having a low density is used, so that the density of the product is not uniform, and surface smoothness, tactile feeling, and flammability are poor.
이러한 문제점을 개선하고자 부직포를 고열 압착하여 밀도를 높게하려는 방법이 시도되기도 하였으나 이는 작업과정에서 섬유가 용융되는 부분이 생기기 쉬워 접착성의 저하로 수지층으로 부터 쉽게 박리되는 단점이 있을 뿐만 아니라 시간이 오래 경과하면 다시 팽창되는 현상이 생겨 제품의 품질이 저하되는 문제점이 있었다.To solve these problems, attempts have been made to increase the density of the nonwoven fabric by high-temperature squeezing. However, this is disadvantageous in that a part where the fibers are melted easily occurs in the course of work, There is a problem that the quality of the product is deteriorated due to the phenomenon that the product is re-expanded when it passes.
본 발명은 이러한 문제점을 감안하여 제안된 것으로서, 수축성이 높은 폴리에스테르 섬유와 수축성이 낮은 나일론 섬유등을 적정 비율로 혼용한 부직포를 수축처리하여 얻은 고밀도의 부직포 펠트를 이용하여 인공피혁을 제조함으로써 부드럽고 표면 평활성과 방추성이 뛰어난 제품을 제공할 수 있도록 하고자 하는데 그 목적을 두고 있다.Disclosure of the Invention The present invention has been proposed in view of such problems, and it is an object of the present invention to provide an artificial leather which is produced by using a high density nonwoven felt obtained by shrinking a nonwoven fabric in which polyester fibers having high shrinkability and nylon fibers having low shrinking ratio are mixed at an appropriate ratio, And to provide a product having excellent surface smoothness and smoothness.
본 발명은 90℃의 열수중에서 수축율이 적어도 20% 이상인 수축성 폴리에스테르 섬유와 같은 조건하에서 수축율이 10% 이하인 나일론등 저수축성 섬유를 혼합하되 그 혼용율을 총중량 대비 7 : 3 ∼ 3 : 7 범위내로 하여 웨브를 형성시켜 적층하고 이를 니틀펀칭하여 부직포 펠트를 만든후 열수침지, 스팀 또는 건열 처리하여 면적을 20∼80%로 수축함으로써 밀도가 0.22g/㎤ ∼ 0.40g/㎤인 고밀도의 부직포 펠트를 얻고 여기에 폴리비닐알콜(PVA)로 함침한 다음 탄성폴리머를 주체로 하는 중합체 용액 또는 분산액에 함침한 후 습식법 또는 건식법으로 응고, 건조하여 엠보싱, 버핑 등의 후가공을 거쳐 완제품을 얻게 되는 것이다.The present invention relates to a shrinkable polyester fiber including a shrinkable fiber such as nylon having a shrinkage ratio of 10% or less under the same conditions as the shrinkable polyester fiber having a shrinkage ratio of at least 20% in hot water at 90 캜. The blend ratio is in the range of 7: A nonwoven fabric felt having a density of 0.22 g / cm3 to 0.40 g / cm3 is obtained by shrinking the area to 20 to 80% by hot water immersion, steam or dry heat treatment after forming a web, Impregnated with a polyvinyl alcohol (PVA), impregnated with a polymer solution or dispersion mainly composed of an elastic polymer, solidified by a wet method or a dry method, and dried to obtain an article after post-processing such as embossing and buffing.
이하 본 발명의 제조방법을 각 공정에 따라 좀 더 상세히 설명하면 다음과 같다.Hereinafter, the manufacturing method of the present invention will be described in more detail according to each step.
.제1공정 : 90℃ 열수중에서 수축율이 20% 이상인 수축성 폴리에스테르 섬유와 수축율이 10% 이하인 나일론등 저수축성 섬유를 각각 7 : 3 내지 3 : 7의 비율로 혼합하여 웨브를 형성한다.Step 1: A web is formed by mixing shrinkable polyester fibers having a shrinkage ratio of 20% or more in 90 ° C hot water and low shrinkable fibers such as nylon having a shrinkage ratio of 10% or less in a ratio of 7: 3 to 3: 7, respectively.
.제2공정 : 웨브를 적층한 후 니들펀지법, 워테젯법 또는 두 방법을 병용하여 부직포 펠트를 만든다. 여기서 부직포 펠트의 중량은 최종제품의 용도에 따라 다르겠으나 일반적으로 160g/㎡ ∼ 700g/㎡의 범위 내이다.Step 2: After the web is laminated, the nonwoven fabric felt is formed by a needle fanning method, a water jet method, or both methods. Here, the weight of the nonwoven felt varies depending on the use of the final product but is generally in the range of 160 g / m 2 to 700 g / m 2.
.제3공정 : 제2공정에서 얻은 부직포 펠트를 열수조에 침지하거나 스팀처리 또는 열풍건조하여 면적 수축율이 20% ∼ 80% 가 되도록 수축시킨다. 이때 부직포 펠트의 밀도는 0.22g/㎤ ∼ 0.40g/㎤로서 매우 높다. 여기서 제품의 용도나 성질상 높은 탄력성이 요구되는 경우에는 부직포 펠트의 수축율을 위 범위내에서 보다 높게 책정하며 탄력성은 그다지 요구되지 않고 충실감이 보다 더 요구되는 경우라면 위 범위내에서 수축율을 작게 하여 조절하면 된다.Step 3: The nonwoven felt obtained in the second step is dipped in a hot water bath or steam-treated or hot-air dried to shrink the area shrinkage to 20% to 80%. At this time, the density of the nonwoven fabric felt is very high, from 0.22 g / cm3 to 0.40 g / cm3. In the case where high elasticity is demanded in terms of the use or property of the product, the shrinkage ratio of the nonwoven felt is set higher within the above range, and if the elasticity is not required and more faithfulness is required, You can adjust it.
.제4공정 : 제3공정에 의해 수축처리된 부직포 펠트에 먼저 폴리비닐알콜(PVA)로 표면처리한 다음 공지된 바에 따라 습식법 또는 건식법으로 폴리우레탄등의 수지 피막층을 형성하고 엠보싱, 버핑등 작업을 거쳐 최종제품을 완성하게 된다.Step 4: The nonwoven felt subjected to the shrinkage treatment by the third step is first surface-treated with polyvinyl alcohol (PVA), and then a resin coating layer such as polyurethane is formed by a wet method or a dry method according to a known method, and embossing and buffing To complete the final product.
[실시예][Example]
90℃ 열수중에서 수축율이 20% 이상이 수축성 폴리에스테르 섬유와 수축율이 10% 이하인 나일론 섬유를 7 : 3의 비율로 혼합하여 카드기, 크로스래퍼기 및 니들펀칭기를 거쳐 부직포 펠트 만들었다. 이때 부직포 펠트의 중량은 170g/㎡였다.Shrinkable polyester fibers having a shrinkage ratio of not less than 20% in hot water at 90 캜 and nylon fibers having a shrinkage ratio of not more than 10% were mixed in a ratio of 7: 3, and the nonwoven fabric felt was made through a card machine, a cross wrapper machine and a needle punch machine. At this time, the weight of the nonwoven felt was 170 g / m 2.
상기 부직포 펠트를 80℃의 스팀을 분사하여 130℃로 가열된 금속 플레이트에 끼워 압력 0.5㎏/㎠로 열처리한 다음 벨트 실린더를 통해 건조하여 면적 수축율이 38.5%로서 밀도가 0.28g/㎤ 인 고밀도의 부직포 펠트를 얻었다.The nonwoven fabric felt was sprayed with steam at 80 ° C, heat-treated at a pressure of 0.5 kg / cm 2 by being sandwiched by a metal plate heated at 130 ° C, and then dried through a belt cylinder to obtain a high density A nonwoven felt was obtained.
수축처리된 상기 부직포 펠트를 폴리비닐알콜 2%의 수용액에 함침해서 건조한 다음 글리콜과 MDI(4.4-diphenyl-diisocyanate)를 반응시켜 만든 폴리우레탄 38.4중량%, 토너 3.8중량%, 논이온계면활성제 0.3중량%, DMF57.5중량%의 용액에 합침 시킨후 응고, 수세, 건조의 과정을 거쳐 건식 및 습식방법으로 폴리우레탄수지를 도포하여 피막을 형성하고 여기에 버핑, 엠보싱, 프린팅등의 후가공을 통해 제품을 완성하였다.The shrink-treated nonwoven felt was impregnated with an aqueous solution of 2% polyvinyl alcohol, dried, and then reacted with 38.4% by weight of a polyurethane prepared by reacting glycol with MDI (4.4-diphenyl-diisocyanate), 3.8% by weight of toner, 0.3% %, And DMF of 57.5% by weight, followed by coagulation, washing, and drying. The polyurethane resin is applied by a dry and wet method to form a film, and the product is subjected to post-processing such as buffing, embossing, .
이렇게 제조된 인공피혁은 종래의 저밀도 부직포를 이용한 인공피혁에 비해 매우 부드럽고 방추성이 양호하여 천연피혁에 가까운 신발 및 볼(ball)용으로 최적의 제품을 만들수 있었다.The artificial leather thus manufactured was very soft and excellent in drivability compared to artificial leather using a conventional low density nonwoven fabric, thereby making it possible to produce an optimal product for shoes and balls which are close to natural leather.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019960034124A KR19980014943A (en) | 1996-08-19 | 1996-08-19 | Manufacturing method of artificial leather using high density nonwoven fabric felt |
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| KR1019960034124A KR19980014943A (en) | 1996-08-19 | 1996-08-19 | Manufacturing method of artificial leather using high density nonwoven fabric felt |
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| KR19980014943A true KR19980014943A (en) | 1998-05-25 |
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| KR1019960034124A KR19980014943A (en) | 1996-08-19 | 1996-08-19 | Manufacturing method of artificial leather using high density nonwoven fabric felt |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100367926B1 (en) * | 1999-12-10 | 2003-01-14 | 주식회사 동우에이엘티 | Preparation Method of Suede Synthetic Leather for Shoes |
| KR20030044088A (en) * | 2001-11-28 | 2003-06-09 | 주식회사 세창 | Manufacturing method for making non-woven fabric of dual structure |
| KR100403766B1 (en) * | 2001-12-26 | 2003-10-30 | 주식회사 효성 | Method for Producing Nonwaven Fabric Using Highly-Contractive Composite Monofilament |
| KR100601306B1 (en) * | 2005-05-09 | 2006-07-13 | 주식회사 코오롱 | Artificial leather with excellent elasticity and method of manufacturing for the same |
-
1996
- 1996-08-19 KR KR1019960034124A patent/KR19980014943A/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100367926B1 (en) * | 1999-12-10 | 2003-01-14 | 주식회사 동우에이엘티 | Preparation Method of Suede Synthetic Leather for Shoes |
| KR20030044088A (en) * | 2001-11-28 | 2003-06-09 | 주식회사 세창 | Manufacturing method for making non-woven fabric of dual structure |
| KR100403766B1 (en) * | 2001-12-26 | 2003-10-30 | 주식회사 효성 | Method for Producing Nonwaven Fabric Using Highly-Contractive Composite Monofilament |
| KR100601306B1 (en) * | 2005-05-09 | 2006-07-13 | 주식회사 코오롱 | Artificial leather with excellent elasticity and method of manufacturing for the same |
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