KR101505632B1 - Substrate for artificial leather and manufacturing method thereof - Google Patents
Substrate for artificial leather and manufacturing method thereof Download PDFInfo
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- KR101505632B1 KR101505632B1 KR1020140153995A KR20140153995A KR101505632B1 KR 101505632 B1 KR101505632 B1 KR 101505632B1 KR 1020140153995 A KR1020140153995 A KR 1020140153995A KR 20140153995 A KR20140153995 A KR 20140153995A KR 101505632 B1 KR101505632 B1 KR 101505632B1
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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
- D06N3/0011—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 non-woven fabrics
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
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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
- D06N3/0013—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 multilayer webs
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
Description
본 발명은 인공피혁용 기포 및 그 제조방법에 관한 것으로, 보다 상세하게는 필라멘트섬유로 이루어진 제3웹 시트의 양면에 스테이플섬유로 이루어진 제1, 2웹 시트를 적층한 상태에서 워터젯을 분사하여 상호 수류교략시키고, 각각의 웹 시트를 극세섬유로 구성함으로써, 물리적 강도와 천연피혁과 유사한 충진감과 표면 효과를 동시에 향상시킬 수 있는 인공피혁용 기포 및 그 제조방법에 관한 것이다.
The present invention relates to a bubble for artificial leather and a method for producing the same, and more particularly, to a bubble for artificial leather and a method for producing the bubble for artificial leather, in which a first and second web sheets made of staple fibers are laminated on both sides of a third web sheet made of filament fibers, To a bubble for artificial leather capable of simultaneously improving physical strength, filling feeling similar to that of natural leather, and surface effect by constituting each web sheet with microfibers, and a method for manufacturing the same.
일반적으로 인공피혁은 천연피혁과 가장 유사한 특성을 나타내며 더 나아가 천연피혁이 갖지 못하는 우수한 물성 및 특성을 부가하여 천연피혁의 대체 소재로 많이 사용되어 진다.In general, artificial leather is most similar to natural leather, and furthermore it is used as a substitute material of natural leather by adding excellent physical properties and characteristics that natural leather does not have.
인공피혁은 부직포 등을 기재로 거기에 폴리우레탄 수지 등을 함침 내지 추가적인 코팅하여 만들어지는데, 특히 부직포를 사용한 인공피혁이 구조상 특성에 있어 3차원적 구조로 가장 천연피혁과 유사한 특성을 나타내므로 고품질의 인공피혁 제조에 많이 사용되어 지고 있다.The artificial leather is made by impregnating or further coating a polyurethane resin or the like with a base material such as a nonwoven fabric. Especially, the artificial leather using a nonwoven fabric has a three-dimensional structure in terms of structural characteristics, It is widely used in artificial leather manufacturing.
일반적인 부직포 인공피혁은 천연피혁과 유사한 강성 및 신장성을 발현하나 사용되는 부직포의 구성 소재 및 구조에 기인한 신축성에 있어서는 미흡한 특성을 나타내며 쿠션성의 발현 또한 한계가 있다.Although general nonwoven fabric artificial leather exhibits similar rigidity and extensibility as natural leather, it exhibits insufficient elasticity due to the constituent material and structure of the nonwoven fabric used, and has a limited cushioning property.
인공피혁에 신축성과 쿠션성을 부가하기 위한 방법으로 국내 특허공개 제1998-018061호에 심성분이 폴리에스테르이고 초성분이 폴리올레핀으로 구성된 동심심초형 장섬유를 방사하여 집적한 후 초성분의 용융점 이하 온도로 가열하며 폭방향으로 열연신하고 열고정하여 폭방향으로 신축성을 갖는 부직포를 얻는 방법이 기재되어 있다. 그러나, 이러한 부직포는 양호한 폭방향 신축성에 의해 파프(PAP)재, 붕대 등의 의료위생재로의 활용은 가능하나 파단강도의 취약으로 인공피혁의 소재로는 적용하기 곤란한 문제가 있다.As a method for imparting stretchability and cushioning property to artificial leather, Korean Patent Laid-Open Publication No. 1998-018061 discloses a method for producing a synthetic leather sheet by spinning and concentrating the core-shell long fiber composed of polyolefin and polyolefin, There is disclosed a method for obtaining a nonwoven fabric having a stretchability in the width direction by heating, hot stretching in the width direction, and heat setting. However, such a nonwoven fabric can be used as a medical sanitary material such as a pap (PAP) material and a bandage due to good stretchability in the width direction, but it is difficult to apply it as a material of artificial leather because of its weak breaking strength.
부직포 제조시 신축성을 갖는 스판덱스 편물망사, 편물 또는 직물을 부직포 웹에 삽입 결합하여 신축성을 부가한 인조피혁용 부직포 및 잠재 권축성을 갖는 단섬유 또는 장섬유 부직포를 제조 후 열수축에 의해 권축을 부여하여 신축성을 나타내는 기술도 소개되어 있다. 그러나 신축성 편직물을 삽입 결합한 신축성 부직포의 경우 부직포가 고중량화 될수록 신축성 발현에 지장을 초래하며 결합이 불충분할 경우 부직포 웹과 편직물 사이의 탈착 등의 문제가 있다. 또한, 잠재 권축성 섬유를 활용한 신축성 부직포의 경우는 섬유의 취약한 파단강성에 의해 인조피혁의 강도 유지에 불충분한 단점이 있다.A spandex knitted fabric having stretchability in the production of nonwoven fabric, a knitted fabric, a knitted fabric or a fabric is inserted into a nonwoven web to provide a stretchable nonwoven fabric and a short-woven or longwoven nonwoven fabric having latent crimping property, A technique for indicating elasticity is also introduced. However, in the case of a stretchable nonwoven fabric in which a stretchable knitted fabric is inserted and bonded, the higher the weight of the nonwoven fabric is, the more difficult it is to exhibit stretchability, and when the bonding is insufficient, there is a problem of detachment between the nonwoven web and the knitted fabric. In addition, in the case of elastic nonwoven fabric using latent crimping fibers, there is a disadvantage that it is insufficient to maintain the strength of artificial leather due to the fragile fracture stiffness of the fibers.
결론적으로, 종래 인공피혁용 기포 제조방법에서는 신율(신축성 내지 탄성력)을 향상시키는 경우 강도(인열강도 내지 인장강도)가 약해지고, 강도를 개선하면 신율이 저하되기 때문에, 신율과 강도를 모두 향상시킬 수 있는 인공피혁의 제조방법의 개발이 필요한 실정이다.As a result, in the conventional method for producing artificial leather bubbles, the strength (tear strength or tensile strength) is weakened when the elongation (elasticity or elasticity) is improved, and the elongation is decreased when the strength is improved. A method of manufacturing an artificial leather which can be used in the artificial leather is required.
1. 대한민국 등록특허 제10-0378762호 (공고일 : 2003.04.03.)1. Korean Registered Patent No. 10-0378762 (Notification Date: Mar. 03, 2003)
2. 대한민국 등록특허 제10-0490249호 (공고일 : 2005.05.18.)2. Korean Patent No. 10-0490249 (Notification Date: May 18, 2005)
3. 대한민국 등록특허 제10-0542506호 (공고일 : 2006.01.11.)
3. Korean Patent No. 10-0542506 (Notification Date: Jan. 11, 2006)
이에 본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로서, 본 발명의 목적은 필라멘트섬유로 이루어진 제3웹 시트의 양면에 스테이플섬유로 이루어진 제1, 2웹 시트를 적층한 상태에서 워터젯을 분사하여 상호 수류교략시키고, 각각의 웹 시트를 극세섬유로 구성함으로써, 물리적 강도와 천연피혁과 유사한 충진감과 표면 효과를 동시에 향상시킬 수 있는 인공피혁용 기포 및 그 제조방법을 제공하는 것이다.
SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a web sheet having a first web sheet and a second web sheet formed of staple fibers on both sides of a third web sheet made of filament fibers, To provide a bubble for artificial leather and a method for manufacturing the bubble for artificial leather which can simultaneously improve physical strength, filling feeling similar to that of natural leather and surface effect by constituting each web sheet with ultra fine fibers.
상기한 목적을 달성하기 위하여 본 발명에 따른 인공피혁용 기포 제조방법은 길이 3~15mm인 스테이플섬유로 이루어진 제1, 2웹 시트를 마련하는 단계와; 필라멘트섬유로 이루어진 제3웹 시트를 마련하는 단계와; 상기 제1웹 시트, 제3웹 시트 및 제2웹 시트를 순차적으로 적층하고, 상기 적층된 웹 시트를 상호 수류 결합한 복합부직포를 제조하는 단계와;복합부직포내에 인공피혁 충진층을 형성하는 함침 단계를 포함하는 것을 특징으로 한다.According to an aspect of the present invention, there is provided a method for manufacturing a bubble for artificial leather comprising: providing first and second web sheets made of staple fibers having a length of 3 to 15 mm; Providing a third web sheet of filament fibers; A step of sequentially laminating the first web sheet, the third web sheet and the second web sheet, and preparing a composite nonwoven fabric in which the laminated web sheets are mutually water-bonded; an impregnation step of forming an artificial leather filling layer in the composite nonwoven fabric And a control unit.
또한, 본 발명에 따른 인공피혁용 기포 제조방법에서 제1, 2웹 시트는 상기 스테이플섬유를 물에 현탁시킨 후 플레이트 상에 펼쳐 시트 상으로 제조하고, 상기 제3웹 시트는 필라멘트섬유를 압출한 다음, 열융착하여 제조하는 것을 특징으로 한다.Further, in the method for manufacturing a bubble for artificial leather according to the present invention, the first and second web sheets are prepared by suspending the staple fibers in water and spreading them on a plate to prepare a sheet, and the third web sheet is obtained by extruding filament fibers And then heat-fused.
또한, 본 발명에 따른 인공피혁용 기포 제조방법에서 필라멘트섬유 및 스테이플섬유는 각각 섬도가 0.1~0.5데니어(D)인 극세섬유로 이루어지는 것을 특징으로 한다.Further, in the method for producing an air bubble for artificial leather according to the present invention, the filament fiber and the staple fiber are characterized by being made of ultrafine fibers each having a fineness of 0.1 to 0.5 denier (D).
또한, 본 발명에 따른 인공피혁용 기포 제조방법에서 복합부직포의 제1, 2웹 시트는 각각 중량이 35~100g/㎡이고, 제3웹 시트는 중량이 75~200g/㎡인 것을 특징으로 한다.In the method for producing a base fabric for artificial leather according to the present invention, the first and second web sheets of the composite nonwoven fabric each have a weight of 35 to 100 g / m 2, and the third web sheet has a weight of 75 to 200 g / m 2 .
또한, 본 발명에 따른 인공피혁용 기포 제조방법에서 복합부직포는 상기 적층된 웹 시트를 워터젯 장치에서 수압 100~600bar의 워터젯을 분사하여 상기 스테이플섬유 및 필라멘트섬유가 상호 수류교락되어 이루어지는 것을 특징으로 한다.Further, in the method for producing a bubble for artificial leather according to the present invention, the composite nonwoven fabric is characterized in that the staple fiber and the filament fiber are entangled with each other by spraying a water jet of a water pressure of 100 to 600 bar in the water jet apparatus of the laminated web sheet .
또한, 본 발명에 따른 인공피혁용 기포는 위 제조방법에 의해 제조된다.Further, the bubble for artificial leather according to the present invention is manufactured by the above manufacturing method.
이상과 같은 구성의 본 발명에 따른 인공피혁용 기포 제조방법에 의하면 필라멘트섬유로 이루어진 제3웹 시트의 양면에 스테이플섬유로 이루어진 제1, 2웹 시트를 적층한 상태에서 워터젯을 분사하여 상호 수류교략시키고, 각각의 웹 시트를 극세섬유로 구성함으로써, 물리적 강도와 천연피혁과 유사한 충진감과 표면 효과를 동시에 향상시킬 수 있는 효과가 있다.According to the method of manufacturing bubble for artificial leather according to the present invention, the first and second web sheets made of staple fibers are laminated on both sides of a third web sheet made of filament fibers, And each web sheet is made of microfine fibers, it is possible to simultaneously improve the physical strength, the filling feeling similar to that of natural leather, and the surface effect.
도 1은 본 발명에 따른 인공피혁의 구조를 도시하는 단면도이다.
도 2는 본 발명에 따른 인공피혁용 기포 제조방법의 각 단계를 도시하는 공정도이다.1 is a sectional view showing the structure of an artificial leather according to the present invention.
Fig. 2 is a process diagram showing each step of the method for manufacturing bubble for artificial leather according to the present invention.
이하 본 발명의 바람직한 실시예에 대하여 첨부된 도면을 참조하여 보다 구체적으로 설명한다.Hereinafter, preferred embodiments of the present invention will be described more specifically with reference to the accompanying drawings.
본 발명의 설명에서 동일 또는 유사한 구성요소는 동일 또는 유사한 도면번호를 부여하고, 그 자세한 설명은 생략하기로 한다.
In the description of the present invention, the same or similar elements are denoted by the same or similar reference numerals, and a detailed description thereof will be omitted.
도 1은 본 발명에 따른 인공피혁용 기포를 도시하는 단면도이고, 도 2는 본 발명에 따른 인공피혁용 기포의 제조방법의 각 단계를 도시하는 공정도이다.FIG. 1 is a sectional view showing a bubble for artificial leather according to the present invention, and FIG. 2 is a process drawing showing each step of the method for manufacturing an artificial leather bubble according to the present invention.
도 1 및 도 2를 참조하면, 본 발명에 따른 인공피혁은 크게 복합부직포와, 복합부직포에 PU(폴리우레탄)을 함침함으로써 인공피혁의 충진감을 형성하는 단계로 이루어질 수 있다.Referring to FIGS. 1 and 2, the artificial leather according to the present invention can largely be formed by impregnating a composite nonwoven fabric and a composite nonwoven fabric with PU (polyurethane) to form a filling feeling of artificial leather.
구체적으로 상기 복합부직포는 인공피혁의 기포(基布) 역할을 하는 것으로서, 스테이플섬유로 이루어진 제1, 2웹 시트와, 상기 제1, 2웹 시트 사이에 배치되며 필라멘트섬유로 이루어진 제3웹 시트가 서로 교락된 구조로 이루어진다.Specifically, the composite nonwoven fabric serves as a base fabric of artificial leather. The composite nonwoven fabric includes first and second web sheets made of staple fibers, a third web sheet disposed between the first and second web sheets and made of filament fibers, Are entangled with each other.
상기 인공피혁 충진층은 상기 복합부직포에 예를 들어, PU(폴리우레탄)이 함침되어 천연피혁과 유사한 질감인 충진감과 표면 촉감을 발현하여 제공하는 것으로서, 합성수지 소재로 이루어진다.The artificial leather filler layer is made of a synthetic resin material, for example, by impregnating the composite nonwoven fabric with PU (polyurethane) to provide a filling feeling and surface tactile feeling similar to those of natural leather.
한편, 본 발명에 따른 인공피혁의 제조방법은 제1, 2웹 시트를 마련하는 단계(S1)와, 제3웹 시트를 마련하는 단계(S2)와, 상기 웹 시트들을 적층하고, 상기 적층된 웹 시트를 상호 결합한 복합부직포를 제조하는 단계(S3)를 포함할 수 있다.Meanwhile, a method for manufacturing artificial leather according to the present invention includes a step S1 of providing first and second web sheets, a step S2 of providing a third web sheet, a step of laminating the web sheets, And a step (S3) of producing a composite nonwoven fabric in which web sheets are bonded to each other.
상기 S1단계는 스테이플섬유로 이루어진 제1, 2웹 시트를 마련하는 단계이다.Step S1 is a step of providing first and second web sheets made of staple fibers.
상기 제1, 2웹 시트는 길이가 3~15mm인 스테이플섬유(단섬유)로 이루어지고, 습식법으로 제조되는 것을 예시할 수 있다.The first and second web sheets are made of staple fibers (short fibers) having a length of 3 to 15 mm and can be produced by a wet method.
구체적으로, 상기 제1, 2웹 시트는 스테이플섬유를 물에 현탁시켜 이것을 플레이트에 펼쳐 시트 상으로 제조할 수 있으며, 여기서 스테이플섬유는 폴리아미드, 폴리에스테르, 폴리비닐알콜과 같은 합성섬유는 물론, 천연섬유도 사용하는 것을 예시할 수 있으나, 그 종류에는 특별한 제한이 없다.Specifically, the first and second web sheets can be prepared by suspending staple fibers in water and spreading them on a plate, wherein the staple fibers are not only synthetic fibers such as polyamide, polyester and polyvinyl alcohol, Natural fibers may also be used, but the kind thereof is not particularly limited.
상기 스테이플섬유는 극세섬유인 것이 바람직한데, 상기 스테이플섬유로서 극세섬유를 사용하게 되면 천연피혁과 유사한 질감인 충진감과 표면촉감을 발현할 수 있다.The staple fibers are preferably microfine fibers. If the microfine fibers are used as the staple fibers, the staple fibers can exhibit filling feeling and surface texture similar to those of natural leather.
다만, 스테이플섬유의 섬도가 0.1데니어 미만인 경우에는 초극세사섬유로 분류되는데, 극세섬유와 기능면에서 큰 차이가 없는 반면 원가는 상승하며, 0.5데니어를 초과하는 경우에는 상술한 천연피혁과 유사한 신축성과 쿠션성을 발현하기 어렵기 때문에 섬도가 0.1~0.5데니어(D)인 극세섬유를 사용하는 것이 바람직하다.However, when the fineness of the staple fiber is less than 0.1 denier, it is classified as the microfiber fiber. In the case of the staple fiber, there is no significant difference in the function of the microfine fiber, but the cost increases. When the staple fiber is more than 0.5 denier, It is preferable to use microfine fibers having a fineness of 0.1 to 0.5 denier (D).
상기 S2단계는 필라멘트섬유로 이루어진 제3웹 시트를 마련하는 단계이다.Step S2 is a step of providing a third web sheet made of filament fibers.
상기 제3웹 시트는 필라멘트섬유를 스펀본드법을 이용하여 제조할 수 있다.The third web sheet can be produced by spunbonding filament fibers.
구체적으로, 제3웹 시트는 용융된 수지를 미세한 구멍이 많은 노즐에서 다량의 필라멘트섬유를 압출하여 이것을 벨트 위에 모아서 웹으로 제조하는데, 고온상태의 필라멘트섬유가 서로 열융착되어 시트 상으로 제조된다.Specifically, the third web sheet is produced by extruding a large amount of filament fibers from a nozzle having a large number of fine holes and collecting the melted resin on a belt to form a web. The filament fibers in a high temperature state are thermally fused to each other to form a sheet.
그리고 상기 제3웹 시트도 상술한 스테이플섬유와 마찬가지 이유로 섬도가 0.1~0.5데니어(D)인 극세섬유를 사용하는 것이 바람직하며, 저가용으로 일반사 부분인 1~3데니어(D)의 굵기를 갖는 웹 시트(web sheet)도 적용 가능하다.For the same reason as the above-described staple fibers, the third web sheet is preferably made of microfine fibers having a fineness of 0.1 to 0.5 denier (D), and the thickness of 1 to 3 deniers (D) A web sheet having the same structure is also applicable.
상기 S3단계는 상기 제1웹 시트, 제3웹 시트 및 제2웹 시트를 순차적으로 적층하고, 상기 적층된 웹 시트를 상호 결합한 복합부직포를 제조하는 단계이다.The step S3 is a step of sequentially laminating the first web sheet, the third web sheet and the second web sheet, and fabricating the composite nonwoven fabric in which the laminated web sheets are bonded to each other.
여기서, 제1, 2웹 시트의 중량은 각각 35~100g/㎡이고, 제3웹 시트의 중량은 75~100g/㎡인 것을 예시할 수 있으며, 사용되는 제품의 특성을 고려하여 최적으로 조정할 수 있다.Here, the weights of the first and second web sheets are respectively 35 to 100 g / m < 2 > and the weights of the third web sheet are 75 to 100 g / m < 2 > have.
예를 들어, 상기 제1, 2웹 시트의 총중량이 70g/㎡인 경우, 상기 제3웹 시트의 중량이 75g/㎡ 미만으로 이루어지면 인공피혁에서 요구하는 최소한의 인열강도를 제공하지 못한다. 그리고, 상기 제1, 2웹 시트의 총중량이 150g/㎡인 경우, 상기 제3웹 시트의 중량이 200g/㎡를 초과하면 표면층과 내부의 일체감이 떨어져 천연피혁과 같은 질감을 발현하기 어렵기 때문에 각 웹 시트의 중량을 조정하는 것이 바람직하다.For example, when the total weight of the first and second web sheets is 70 g / m 2, if the weight of the third web sheet is less than 75 g / m 2, the minimum tear strength required in the artificial leather is not provided. When the total weight of the first and second web sheets is 150 g / m 2, if the weight of the third web sheet is more than 200 g / m 2, the surface layer and the inside are unlikely to have a sense of unity, It is preferable to adjust the weight of each web sheet.
한편, 적층된 웹 시트를 상호 결합한 복합부직포는 상기 적층된 웹 시트를 워터젯 장치에서 수압 100~600bar의 워터젯을 분사하여 상기 스테이플섬유 및 필라멘트섬유가 상호 수류교락되어 이루어지는 것이 바람직하다.On the other hand, it is preferable that the composite nonwoven fabric in which the laminated web sheets are mutually bonded is formed by spraying a water jet of 100 to 600 bar of water pressure on the laminated web sheet in a water jet apparatus so that the staple fibers and the filament fibers are entangled with each other.
이때, 적층된 웹 시트의 일면에만 워터젯을 분사할 수도 있고, 양면에 모두 워터젯을 분사할 수도 있다.At this time, the water jet may be sprayed only on one side of the laminated web sheet, or the water jet may be sprayed on both sides.
적층된 웹 시트의 양면에 모두 워터젯을 분사하는 경우, 일면과 타면에 각각 분사되는 워터젯의 압력을 다르게 조정할 수 있다.When the water jet is sprayed on both sides of the laminated web sheet, the pressure of the water jet sprayed on one surface and the other surface can be adjusted differently.
예를 들어, 적층된 웹 시트의 일면에는 수압이 400bar인 워터젯을 분사하고 뒤집은 다음, 타면에는 수압이 300bar인 워터젯을 분사하는 것이다.For example, a water jet having a water pressure of 400 bar is sprayed on one side of a laminated web sheet, and then a water jet having a water pressure of 300 bar is sprayed on the other side.
이와 같이, 첫번째 워터젯을 큰 수압으로 분사하여 제1, 2, 3웹 시트 전체적인 교락을 형성하고, 두번째 워터젯을 상대적으로 작은 수압으로 분사함으로써 제1, 2웹 시트를 이루는 스테이플섬유들이 모두 중앙에 배치된 제3웹과 치밀한 구조로 엉키게 된다.In this manner, the first waterjet is sprayed with a large water pressure to form the overall entanglement of the first, second, and third web sheets, and the second waterjet is sprayed with a relatively small water pressure so that the staple fibers constituting the first and second web sheets are all disposed at the center Lt; RTI ID = 0.0 > web. ≪ / RTI >
여기서 적층된 웹 시트의 일면 또는 양면에 워터젯을 분사하거나, 양면에 수압을 달리하여 분사하는 구성은 제품의 특성, 예를 들어 적층된 웹 시트의 두께 또는 인공피혁의 용도 등을 종합적으로 고려하여 결정할 수 있다.The configuration in which the water jet is sprayed on one surface or both surfaces of the laminated web sheet or the water jet is sprayed on the both surfaces with different water pressure is determined by taking into consideration the characteristics of the product, for example, the thickness of the laminated web sheet or the use of the artificial leather .
그리고 워터젯 공정을 거치지 않고 단순히 웹 시트들이 적층된 상태에서 워터젯을 분사하게 되면, 섬유 조직들이 압축되어 치밀해지면서 결합력 및 인열강도가 증가하게 된다. 그러나, 제1, 2, 3웹 시트가 모두 극세섬유로 이루어지기 때문에 일반적인 부직포에 비해 높은 신율과 인열강도를 모두 충족시킬 수 있게 된다.If the waterjet is sprayed in a state where the web sheets are simply laminated without going through a water jet process, the fiber structures are compressed and dense to increase the bonding strength and tear strength. However, since the first, second, and third web sheets are all made of microfine fibers, they can satisfy both high elongation and tear strength as compared with general nonwoven fabrics.
상기 S4단계는 복합부직포 제조이후 천연피혁의 콜라겐 충진층으로, PU(폴리우레탄)로 함침 처리함으로써 역확을 할 수 있게 하는 단계이다.
Step S4 is a step of making the collagen filling layer of natural leather after impregnation of the composite nonwoven fabric, by impregnation with PU (polyurethane).
이하에서는 본 발명에 따른 인공피혁용 기포 제조방법의 바람직한 실시예를 통해 보다 상세히 설명한다.Hereinafter, a method for manufacturing a bubble for artificial leather according to the present invention will be described in more detail with reference to preferred embodiments.
먼저, 길이가 12mm이고, 섬도가 0.3데니어인 PET 극세섬유를 물과의 중량비가 0.2~0.3%가 되도록 현탁한 후, 플레이트에서 시트 상으로 펼쳐 총중량이 155g/㎡인 wet-laid 부직포로 구성되는 제1,2웹 시트를 마련한다.First, a PET microfine fiber having a length of 12 mm and a fineness of 0.3 denier was suspended in a weight ratio of 0.2 to 0.3% with water, and spread on a sheet in a plate to form a wet-laid nonwoven fabric having a total weight of 155 g / The first and second web sheets are prepared.
다음으로, 용융된 PET를 방사하여 0.4데니어인 필라멘트를 압출하여 중량이 155 g/㎡인 spunbond 부직포로 구성되는 제3웹 시트를 마련한다.Next, the molten PET is spun out to extrude a filament of 0.4 denier to prepare a third web sheet composed of a spunbond nonwoven fabric having a weight of 155 g / m 2.
그 다음으로 제1웹 시트, 제3웹 시트 및 제2웹 시트를 순차적으로 적층했으며, 그리고 적층된 웹 시트의 일면을 워터젯 장치에서 수압 250bar의 워터젯을 분사하여 수류교락하여 중량이 295g/㎡인 복합부직포를 제조한다.Next, the first web sheet, the third web sheet and the second web sheet were sequentially laminated, and one side of the laminated web sheet was water-jetted by a water jet of a water pressure of 250 bar in a water jet apparatus to obtain a web of 295 g / Thereby producing a composite nonwoven fabric.
그 다음으로, 복합부직포에 수지 고형분 농도 15%의 폴리우레탄수지를 통상적인 방법으로 함침하고 응고시켜 인공피혁의 제조를 완료하였다.Next, the composite nonwoven fabric was impregnated with a polyurethane resin having a resin solid content concentration of 15% by a conventional method and solidified to complete the production of the artificial leather.
실시예 1에서 적층된 웹 시트의 일면을 워터젯 장치에서 수압 400bar의 워터젯을 분사하여 수류교락한 다음, 적층된 웹 시트를 뒤집어 그 타면에 수압 300bar의 워터젯을 분사하여 중량이 290g/㎡인 복합부직포를 제조한 것을 제외하고 실시예 1과 동일한 방법으로 인공피혁을 제조하였다.
A water jet of a water pressure of 400 bar was sprayed on one side of the web sheet stacked in Example 1 in a water jet apparatus and the web sheet was turned upside down and a water jet of water pressure of 300 bar was sprayed on the other side of the web sheet to obtain a composite nonwoven fabric having a weight of 290 g / Was produced in the same manner as in Example 1. The results are shown in Table 1. < tb >< TABLE >
[비교예 1] [ Comparative Example 1 ]
길이가 12mm이고, 섬도가 2데니어인 PET 섬유를 물과의 중량비가 0.2~0.3%가 되도록 현탁한 후, 플레이트에서 시트 상으로 펼쳐 총중량이 165g/㎡인 제1,2웹 시트를 마련한다.The PET fibers having a length of 12 mm and a fineness of 2 denier are suspended in a weight ratio of 0.2 to 0.3% with respect to water and spread on a sheet in a plate to prepare first and second web sheets having a total weight of 165 g / m 2.
용융된 PET를 방사하여 2데니어인 필라멘트를 압출하여 중량이 165 g/㎡인 제3웹 시트를 마련한다.The melted PET is spun to extrude the filament of 2 denier to prepare a third web sheet having a weight of 165 g / m 2.
제1웹 시트, 제3웹 시트 및 제2웹 시트를 순차적으로 적층했으며, 적층된 웹 시트를 워터젯 장치에서 수압 400bar의 워터젯을 분사하여 수류교락하여 총중량이 310g/㎡인 복합부직포를 제조한다.The first web sheet, the third web sheet and the second web sheet were sequentially laminated. The laminated web sheet was sprayed with a water jet at a water pressure of 400 bar in a water jet apparatus to form a composite nonwoven fabric having a total weight of 310 g / m 2.
복합부직포에 수지 고형분 농도 15%의 폴리우레탄수지를 통상적인 방법으로 함침하고 응고시켜 인공피혁의 제조를 완료하였다.(극세아님,강도가 떨어짐)The composite nonwoven fabric was impregnated with a polyurethane resin having a resin solid content concentration of 15% by a conventional method and solidified to complete the production of artificial leather (not very fine,
[비교예 2] [ Comparative Example 2 ]
섬도가 1.5데니어인 PET 필라멘트를 압출하여 총중량이 163 g/㎡인 제1, 2웹 시트를 마련한다.PET filament having a fineness of 1.5 denier is extruded to prepare first and second web sheets having a total weight of 163 g / m 2.
용융된 PET를 방사하여 2데니어인 필라멘트를 압출하여 중량이 165 g/㎡인 제3웹 시트를 마련한다.The melted PET is spun to extrude the filament of 2 denier to prepare a third web sheet having a weight of 165 g / m 2.
제1웹 시트, 제3웹 시트 및 제2웹 시트를 순차적으로 적층했으며, 그리고 적층된 웹 시트를 워터젯 장치에서 수압 400bar의 워터젯을 분사하여 수류교락하여 총중량이 328g/㎡인 복합부직포를 제조한다.The first web sheet, the third web sheet and the second web sheet were sequentially laminated, and the laminated web sheet was sprayed with a water jet at a water pressure of 400 bar in a water jet apparatus to form a composite nonwoven fabric having a total weight of 328 g / m 2 .
복합부직포에 수지 고형분 농도 15%의 폴리우레탄수지를 통상적인 방법으로 함침하고 응고시켜 인공피혁의 제조를 완료하였다.(단섬유 아님, 신율이 떨어짐)A polyurethane resin having a resin solid content concentration of 15% was impregnated into the composite nonwoven fabric by a usual method and solidified to complete the production of the artificial leather (not short fiber, low elongation)
[비교예 3] [ Comparative Example 3 ]
섬도가 1.5데니어인 PET 필라멘트를 압출하여 제1,2웹 시트의 중량을 합한 총중량이 163 g/㎡인 제1, 2웹 시트를 마련한다.PET filaments having a fineness of 1.5 denier are extruded to prepare first and second web sheets having a total weight of 163 g / m < 2 > by weight of the first and second web sheets.
용융된 PET를 방사하여 2데니어인 필라멘트를 압출하여 중량이 165 g/㎡인 제3웹 시트를 마련한다.The melted PET is spun to extrude the filament of 2 denier to prepare a third web sheet having a weight of 165 g / m 2.
제1웹 시트, 제3웹 시트 및 제2웹 시트를 순차적으로 적층했으며, 적층된 웹 시트를 니들펀칭 장치에서 1,000회/분으로 니들펀칭하여 총중량이 280g/㎡인 복합부직포를 제조한다.The first web sheet, the third web sheet and the second web sheet were sequentially laminated, and the laminated web sheet was needle-punched at 1,000 times / min in a needle punching apparatus to produce a composite nonwoven fabric having a total weight of 280 g / m 2.
복합부직포에 수지 고형분 농도 15%의 폴리우레탄수지를 통상적인 방법으로 함침하고 응고시켜 인공피혁의 제조를 완료하였다.
The composite nonwoven fabric was impregnated with a polyurethane resin having a resin solid content concentration of 15% by a conventional method and solidified to complete the production of the artificial leather.
실시예 및 비교예에 따라 제조된 부직포, 인공피혁에 대해 인장강도, 신율, 인열강도를 측정하였으며, 측정 규격은 JIS L 1906 부직포 측정방법을 이용하였으며, 인장강도 및 신율은 동 규격에서 Cut-Strip을 이용하고, 인열강도는 Tongue 법을 이용하였다.
The tensile strength, elongation and tear strength of the nonwoven fabric and artificial leather prepared according to Examples and Comparative Examples were measured. The measurement standard was a JIS L 1906 nonwoven fabric measurement method. The tensile strength and elongation were measured in accordance with Cut- Strip was used and tear strength was measured by Tongue method.
복합부직포의Composite nonwoven 물성 Properties
(kg/5cm)The tensile strength
(kg / 5 cm)
(%)Elongation
(%)
(kgf)Phosphorus strength
(kgf)
인공피혁의 물성The properties of artificial leather
(kg/5cm)The tensile strength
(kg / 5 cm)
(%)Elongation
(%)
(kgf)Phosphorus strength
(kgf)
표 1 및 표 2의 결과를 보면, 본 발명의 실시예의 경우, 인장강도와 인열강도와 신율 모두 비교예에 비해 우수하다는 것을 확인할 수 있다.
From the results of Tables 1 and 2, it can be seen that the tensile strength, tear strength and elongation of the examples of the present invention are superior to those of the comparative example.
이상에서 설명된 본 발명은 예시적인 것에 불과하며, 본 발명이 속한 기술분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 잘 알 수 있을 것이다. 그러므로 본 발명은 상기의 상세한 설명에서 언급되는 형태로만 한정되는 것은 아님을 잘 이해할 수 있을 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의해 정해져야 할 것이다. 또한, 본 발명은 첨부된 청구범위에 의해 정의되는 본 발명의 정신과 그 범위 내에 있는 모든 변형물과 균등물 및 대체물을 포함하는 것으로 이해되어야 한다.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (6)
길이 3~15mm인 스테이플섬유로 이루어진 제1, 2웹 시트를 마련하는 단계와;
필라멘트섬유로 이루어진 제3웹 시트를 마련하는 단계와;
상기 제1웹 시트, 제3웹 시트 및 제2웹 시트를 순차적으로 적층하고, 상기 적층된 웹 시트에 워터젯을 분사하여 상호 수류 결합한 복합부직포를 제조하는 단계;를 포함하며,
상기 스테이플섬유 및 필라멘트섬유는 각각 섬도가 0.1~0.5데니어(D)인 극세섬유로 이루어지고,
상기 복합부직포를 제조하는 단계에서 상기 워터젯은 상기 복합부직포의 일면 및 타면에 순차적으로 분사되며,
상기 일면에 분사되는 워터젯의 분사압은 적어도 상기 타면에 분사되는 워터젯의 분사압보다 큰 것을 특징으로 하는 인공피혁용 기포 제조방법.A method for manufacturing an air bubble for artificial leather,
Providing first and second web sheets made of staple fibers having a length of 3 to 15 mm;
Providing a third web sheet of filament fibers;
Forming a composite nonwoven fabric by sequentially laminating the first web sheet, the third web sheet, and the second web sheet, and spraying a water jet on the laminated web sheet,
The staple fiber and the filament fiber are made of microfine fibers each having a fineness of 0.1 to 0.5 denier (D)
In the step of producing the composite nonwoven fabric, the waterjet is sequentially sprayed on one surface and the other surface of the composite nonwoven fabric,
Wherein the jetting pressure of the water jet jetted on the one surface is greater than the jetting pressure of the water jet jetted on at least the other surface.
상기 제1, 2웹 시트는 상기 스테이플섬유를 물에 현탁시킨 후 플레이트 상에 펼쳐 시트 상으로 제조하고,
상기 제3웹 시트는 필라멘트섬유를 압출한 다음, 열융착하여 제조하는 것을 특징으로 하는 인공피혁용 기포 제조방법.The method according to claim 1,
The first and second web sheets are prepared by suspending the staple fibers in water and spreading them on a plate to prepare a sheet,
Wherein the third web sheet is produced by extruding filament fibers and then thermally fusing them.
상기 복합부직포의 제1, 2웹 시트는 중량이 각각 35~100g/㎡이고, 제3웹 시트는 중량이 75~200g/㎡인 것을 특징으로 하는 인공피혁용 기포 제조방법.The method according to claim 1,
Wherein the first and second web sheets of the composite nonwoven fabric each have a weight of 35 to 100 g / m 2, and the third web sheet has a weight of 75 to 200 g / m 2.
상기 복합부직포는 상기 적층된 웹 시트를 워터젯 장치에서 수압 100~600bar의 워터젯을 분사하여 상기 스테이플섬유 및 필라멘트섬유가 상호 수류교락되어 이루어지는 것을 특징으로 하는 인공피혁용 기포 제조방법.The method according to claim 1,
Wherein the composite nonwoven fabric is formed by spraying a waterjet having a water pressure of 100 to 600 bar in the water jet apparatus with the laminated web sheet so that the staple fibers and the filament fibers are entangled with each other.
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| KR102599166B1 (en) * | 2023-05-02 | 2023-11-06 | 안득희 | Manufacturing method of multi-functional non-woven fabric and multi-functional non-woven fabric prepared therefrom |
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| KR20040029264A (en) * | 2002-09-30 | 2004-04-06 | 가부시키가이샤 구라레 | Suede artificial leather and production method thereof |
| KR100490249B1 (en) | 2004-09-08 | 2005-05-18 | 주식회사 하코 | Non-woven fabric for artificial leather and artificial leather using the same |
| KR100810653B1 (en) * | 2006-11-08 | 2008-03-06 | 주식회사 나노테크닉스 | Artificial leather and the method for manufacturing therof |
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| KR100490249B1 (en) | 2004-09-08 | 2005-05-18 | 주식회사 하코 | Non-woven fabric for artificial leather and artificial leather using the same |
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