KR20040077826A - method of making polyurethane synthetic leather - Google Patents

method of making polyurethane synthetic leather Download PDF

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Publication number
KR20040077826A
KR20040077826A KR1020040058373A KR20040058373A KR20040077826A KR 20040077826 A KR20040077826 A KR 20040077826A KR 1020040058373 A KR1020040058373 A KR 1020040058373A KR 20040058373 A KR20040058373 A KR 20040058373A KR 20040077826 A KR20040077826 A KR 20040077826A
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KR
South Korea
Prior art keywords
polyurethane
solvent
synthetic leather
fabric
free
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KR1020040058373A
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Korean (ko)
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이종회
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세다코오퍼레이숀 주식회사
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Priority to KR1020040058373A priority Critical patent/KR20040077826A/en
Publication of KR20040077826A publication Critical patent/KR20040077826A/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
    • D06N3/12—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
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • 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
    • 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

Abstract

PURPOSE: A method of making synthetic fiber without the use of harmful solvents such as DMF, MEK, toluene or the like is provided. It prevents environmental pollution and does not need a separate drying and adhesion process, thereby to remarkably reducing the working time and production process. CONSTITUTION: The method for manufacture of polyurethane with polyol and isocyanate consists of: forming non-solvent type polyurethane(106) in gel state by reacting polyol and isocyanate in a mixing chamber(104); drying it for 10 to 20sec at 30 to 100deg.C, coating the polyurethane on release paper(102), adhering a fabric(110) on the polyurethane and aging it at 40 to 60deg.C for about 24hr. The fabric is water-soluble polyurethane.

Description

무용제를 이용한 폴리우레탄 합성피혁의 제조방법 및 상기 방법으로 제조된 합성피혁{method of making polyurethane synthetic leather}Manufacturing method of polyurethane synthetic leather using a solvent and synthetic leather produced by the above method

본 발명은 폴리우레탄 합성피혁의 제조방법에 관한 것으로서, 보다 상세하게는 인체에 치명적인 유해성 용제를 사용하지 않고 무용제형 폴리우레탄 합성피혁을 제조하는 방법에 관한 것이다.The present invention relates to a method for producing a polyurethane synthetic leather, and more particularly to a method for producing a solvent-free polyurethane synthetic leather without using a harmful solvent harmful to the human body.

잘 알려진 바와 같이, 폴리우레탄 합성피혁을 제조하는 방법은 크게 건식방법과 습식방법이 있으며, 이들은 인체와 환경에 치명적인 유해성 용제를 반드시 사용하게 된다.As is well known, there are largely dry and wet methods for producing polyurethane synthetic leather, and they will always use harmful solvents that are deadly to humans and the environment.

즉, 상기 습식방법은 폴리우레탄과 유기용제인 디메틸 포름 아마이드를 혼합하여 제조하고 수지조성물을 원단상에 일정한 두께로 코팅한 후 이들을 물속으로 통과시킴으로써 발생된 물방울이 원단상에 수지조성물을 먹고 침입시킨 후 건조기에 넣고 열로서 건조시켜서 미세한 투습 기공을 갖는 방법이다.That is, the wet method is prepared by mixing polyurethane and dimethyl formamide, which is an organic solvent, and coating a resin composition on a fabric with a predetermined thickness, and then passing water into the water to infiltrate the resin composition on the fabric. It is then put into a dryer and dried as heat to have fine moisture permeable pores.

또한 건식방법은 메틸에틸케톤, 톨루엔, 아세톤, 이소프로필 알코올 등 휘발성이 강한 유기용제에 용해시켜서 제조한 수지조성물을 원단상에 일정한 두께로 코팅한 후 열처리하여 휘발성 유기용제를 휘발시키므로서 원단상에 균질의 폴리우레탄 필름층을 형성시키는 방법이다. 이러한 건식방법은 투습효과가 전혀 없으며 유기액화를 사용하기 때문에 인체에 해가되는 공해성 작업방법이다.In addition, the dry method is a resin composition prepared by dissolving in a highly volatile organic solvent, such as methyl ethyl ketone, toluene, acetone, isopropyl alcohol, coating a predetermined thickness on the fabric and heat treatment to volatilize the volatile organic solvent It is a method of forming a homogeneous polyurethane film layer. This dry method has no moisture-permeable effect and is a pollution work method that harms the human body because of using organic liquefaction.

한편 전술한 건식방법에 투습성을 부여하기 위한 방법이 있으나, 이는 폴리우레탄올, 메틸에틸케톤, 톨루엔, 아세톤, 이소프로필 알코올 등 휘발성이 강한 유기용제에 용해시켜서 제조하고, 수지소성물을 한면이 매끈한 이형시트 상에 일정한 두께로 코팅한 후 열처리하여 휘발성 유기용제를 휘발시켜서 투습방수성을 갖는 폴리우레탄 필름을 제조하여 여기에 폴리우레탄 접착제 성분을 유기용제와 혼합시켜서 제조한 접착수지를 나이프로 균일하게 전면 도포하거나 그라이바를 사용하여 도포한 다음 원단과 합포하고 숙성시켜서 투습 방수 피혁을 제조하는 방법이 있다.On the other hand, there is a method for imparting moisture permeability to the above-described dry method, which is prepared by dissolving in a highly volatile organic solvent such as polyurethaneol, methyl ethyl ketone, toluene, acetone, isopropyl alcohol, and the resin plastics are smooth on one side After coating to a certain thickness on a release sheet and heat-treated to produce a polyurethane film having moisture permeability by volatilizing a volatile organic solvent, the adhesive resin prepared by mixing a polyurethane adhesive component with an organic solvent is uniformly covered with a knife. There is a method of applying a moisture-resistant leather by applying or using a grabbar, then combining with a fabric and aging.

그러나 이러한 방법들은 기본적으로 디메틸 포름 아마이드, 톨루엔, 메틸에틸케논, 아세톤, 이소프로필 알코올 등의 휘발성 유기용제를 사용함에 따라 작업공정중 열처리시 휘발성 유기화학 물질이 대기 중으로 방출되기 때문에 대기오염을 유발하며, 작업공정 중에 인체유해나 폭발, 화재 등의 위험을 안고 있다.However, these methods basically use volatile organic solvents such as dimethyl formamide, toluene, methylethylkenone, acetone, and isopropyl alcohol, which cause air pollution because volatile organic chemicals are released into the atmosphere during heat treatment during the work process. In the course of work, there are risks such as human injury, explosion and fire.

특히 위와 같이 폴리우레탄 합성피혁을 제조할 때 사용되는 유해성 용제들은 인체에 유해한 물질들이기 때문에 흡입 혹은 신체에 접촉시 발암성과 구토 및 피부 질환을 일으킬 뿐만 아니라 장기간 사용할 때 인체에 치명적인 영향을 주며, 또한 토양이나 대기의 환경 오염의 원인이 되었다.In particular, since the harmful solvents used in the manufacture of polyurethane synthetic leather are harmful to the human body, they cause carcinogenic, vomiting and skin diseases when inhaled or come into contact with the body. Caused environmental pollution of the atmosphere.

그리고 상기 유기용제가 함유된 종래의 폴리우레탄 합성피혁은 안료의 전이(migration)가 활발할 뿐만 아니라 자외선에 의해 제품의 색깔이 변하고, 또한 발색도 및 촉감(touch)성이 현저히 떨어지는 문제점이 발생하였다.In addition, the conventional polyurethane synthetic leather containing the organic solvent has a problem that not only the migration (piration) of the pigment is active, but also the color of the product is changed by the ultraviolet rays, and the color development and touch are remarkably inferior.

따라서 상기한 바와 같은 문제점을 해결하기 위한 본 발명의 목적은 인체에 치명적인 유해성 용제를 사용하지 않고 무용제형 폴리우레탄 합성피혁을 제조하는 방법을 제공함에 있다.Therefore, an object of the present invention for solving the above problems is to provide a method for producing a solvent-free polyurethane synthetic leather without using a harmful solvent harmful to the human body.

본 발명의 다른 목적은 별도의 건조공정 및 접착공정이 필요없는 무용제를 이용한 폴리우레탄 합성피혁의 제조방법을 제공함에 있다.Another object of the present invention is to provide a method for producing a polyurethane synthetic leather using a solvent-free, no separate drying process and adhesion process.

또한 본 발명의 다른 목적은 위와 같은 방법으로 제조된 인체에 무해하고 환경친화적인 폴리우레탄 합성피혁을 제공함에 있다.In addition, another object of the present invention is to provide a synthetic leather that is harmless to the human body and environmentally friendly produced by the above method.

상기한 바와 같은 목적을 달성하기 위한 본 발명은, 폴리올과 이소시아네이트의 반응에 의해 생성되는 폴리우레탄을 이용하여 합성피혁을 제조하는 방법에 있어서, 믹싱챔버 내에서 폴리올과 이소시아네이트를 혼합 및 반응시켜 무용제형 폴리우레탄을 겔상태로 생성하는 단계와; 상기 무용제형 폴리우레탄을 통상의 이형지 위에 도포한 다음, 상기 겔상태의 폴리우레탄 위에 원단을 밀착시켜 접착한 후, 이를 다시 숙성(40~60℃, 24시간)시켜 합성피혁을 제조하는 단계로 이루어짐을 특징으로 한다.The present invention for achieving the object as described above, in the method for producing a synthetic leather using a polyurethane produced by the reaction of polyol and isocyanate, by mixing and reacting the polyol and isocyanate in a mixing chamber Producing a polyurethane in a gel state; After applying the solvent-free polyurethane on a normal release paper, and then adhere the adhesive on the polyurethane in the gel state, and then aged again (40 ~ 60 ℃, 24 hours) made of synthetic leather It is characterized by.

도 1은 본 발명의 바람직한 일 실시 예에 따른 무용제를 이용한 폴리우레탄 합성피혁을 제조하는 방법을 보이고 있는 도면.1 is a view showing a method for producing a polyurethane synthetic leather using a solvent-free according to an embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

102: 이형지 104: 믹싱챔버102: release paper 104: mixing chamber

106: 무용제형 폴리우레탄 110: 원단106: solvent-free polyurethane 110: fabric

114: 숙성기114: ripening machine

이하 본 발명의 실시 예를 첨부된 도면을 참조하여 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

후술될 상세한 설명에서는 상술한 기술적 과제를 이루기 위해 본 발명에 있어 한 개의 대표적인 실시 예를 제시할 것이다. 그리고 본 발명으로 제시될 수 있는 다른 실시 예들은 본 발명의 구성에서 설명으로 대체한다.DETAILED DESCRIPTION In the following detailed description, one representative embodiment of the present invention is set forth in order to achieve the above technical problem. And other embodiments that can be presented with the present invention are replaced by the description in the configuration of the present invention.

본 발명에서는 인체에 치명적이고 자연환경에 유해한 DMF, MEK, 톨루엔 등의 유해성 용제를 전혀 사용하지 않고 폴리우레탄 합성피혁을 제조하는 기술적 사상을, 바람직하게는 이소시아네이트와 폴리올과의 부가반응에 의해 생성되는 물질인 무용제형 폴리우레탄을 사용하고 또한 별도의 건조공정 및 접착공정(즉, 접착제를 이용하여 접착시키는 공정)을 거치지 않고 곧바로 원단과 무용제형 폴리우레탄을 직접 접착시켜 합성피혁을 제조하는 방법을 제시하고자 한다.In the present invention, the technical idea of producing polyurethane synthetic leather without using any harmful solvent such as DMF, MEK, toluene, which is harmful to human body and harmful to the natural environment, is preferably produced by addition reaction of isocyanate and polyol. A method for producing synthetic leather by directly bonding a fabric and a solvent-free polyurethane without using a solvent-free polyurethane as a material and performing a separate drying process and bonding process (that is, a process using an adhesive) is presented. I would like to.

한편 본 발명에서 사용되고 있는 '무용제형 폴리우레탄'이라는 용어는 앞에서 설명한 바와 같이 자연환경에 유해하고 인체에 치명적인 유해성 용제들이 전혀 함유되어 있지 않는 폴리우레탄을 의미한다.Meanwhile, the term 'solvent-free polyurethane' used in the present invention refers to a polyurethane containing no harmful solvents harmful to the natural environment and fatal to the human body as described above.

또한 본 발명에서는 상기 폴리우레탄이 겔상태를 유지할 수 있도록 별도의 믹싱챔버를 사용하게 되는데, 상기 믹싱챔버로는 주식회사 고려자동화에서 제작하여 판매하고 있는 발포기(실용신안등록 제289613)를 사용하는 것이 가장 바람직하다.In addition, in the present invention, a separate mixing chamber is used to maintain the polyurethane in a gel state. As the mixing chamber, a foaming machine (utility model registration 289613) manufactured and sold by Koryo Automation Co., Ltd. is used. Most preferred.

부가적으로 본 발명에서는 원단 자체를 사용하지만, 필요에 따라 수용성 폴리우레탄이 함침된 원단을 사용하여 합성피혁을 제조할 수 있다.Additionally, in the present invention, the fabric itself is used, but synthetic leather may be manufactured using the fabric impregnated with water-soluble polyurethane, if necessary.

이하 본 발명의 바람직한 실시예를 도 1을 참조하여 상세히 설명하겠는 바, 상기 본 발명이 실시예에 의해 한정되는 것은 아니다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIG. 1, but the present invention is not limited to the embodiments.

[실시예 1]Example 1

도 1에 도시한 바와 같이, 롤(100)에는 이형지(102)가 감겨있으며, 믹싱챔버(104)에는, 바람직하게는 실용신안등록 제289613호를 토대로 주식회사 고려자동화에서 제작한 저압 발포기(104)에는 폴리올과 이소시아네이트가 혼합 및 부가반응에 의해 무용제형 폴리우레탄(106)이 생성된다. 이때 상기 믹싱챔버(104)는 생성되는 무용제형 폴리우레탄(106)의 점도를 낮추기 위하여 20~100℃(바람직하게는, 약 40℃)의 온도를 유지하고 있다.As shown in FIG. 1, a release paper 102 is wound around a roll 100, and a mixing chamber 104 is preferably a low pressure foaming machine 104 manufactured by Koryo Automation Co., Ltd. based on Utility Model Registration No. 289613. ), A solvent-free polyurethane 106 is produced by mixing and adding polyol and isocyanate. At this time, the mixing chamber 104 maintains a temperature of 20 ~ 100 ℃ (preferably, about 40 ℃) in order to lower the viscosity of the solvent-free polyurethane 106 produced.

이후 롤(100)에 감겨있던 이형지(102)는 롤러(107) 사이를 통과하게 되고, 이와 동시에 믹싱챔버(104)에서는 무용제형 폴리우레탄(106)이 겔상태로 이형지(102)의 표면에 배출되어진다.Then, the release paper 102 wound on the roll 100 passes between the rollers 107, and at the same time, in the mixing chamber 104, the solvent-free polyurethane 106 is discharged to the surface of the release paper 102 in a gel state. It is done.

이어서 상기 이형지(102)는, 즉 겔상태의 무용제형 폴리우레탄(106)이 묻어있는 이형지(102)는 롤러(107) 사이를 통과하면서 균일한 두께를 유지하게 되고, 이어서 상기 이형제(102)는 롤(108)에 감겨있는 원단(110)과 함께 롤러(112) 사이를 통과하면서 접착된다.Subsequently, the release paper 102, that is, the release paper 102 on which the gelless solvent-free polyurethane 106 is buried, maintains a uniform thickness while passing between the rollers 107, and then the release agent 102 is It is bonded while passing between the rollers 112 together with the fabric 110 wound on the roll 108.

즉, 상기 원단(110)은 롤러(112)를 통과하면서 겔상태의 무용제형 폴리우레탄(106)과 밀착되고 이에 따라 상기 원단(110)과 무용제형 폴리우레탄(106)은 별도의 접착제 없이 서로 접착되어진다.That is, the fabric 110 is in close contact with the solvent-free polyurethane 106 in a gel state while passing through the roller 112, and thus the fabric 110 and the solvent-free polyurethane 106 adhere to each other without a separate adhesive. It is done.

이후 상기 원단(110)은, 바람직하게는 무용제형 폴리우레탄(106)이 접착된 원단(110)은 숙성기(114)를 통과하면서 숙성(온도: 40~60℃, 시간: 24시간)되고, 이로써 본 발명의 무용제형 폴리우레탄 합성피혁이 제조되어진다.Since the fabric 110, preferably, the fabric 110, to which the solvent-free polyurethane 106 is bonded is aged while passing through the aging machine 114 (temperature: 40 ~ 60 ℃, time: 24 hours), Thus, the solvent-free polyurethane synthetic leather of the present invention is produced.

한편 본 발명에서는 무용제형 폴리우레탄(106)이 이형제(102)에 균일한 두께로 도포된 다음, 제품의 종류 및 용도에 따라 약 30~100℃에서 10~20초 동안 건조과정(semidry)을 수행할 수도 있다.Meanwhile, in the present invention, the solvent-free polyurethane 106 is applied to the release agent 102 in a uniform thickness, and then subjected to a drying process for about 10 to 20 seconds at about 30 to 100 ° C. according to the type and use of the product. You may.

이상으로 살펴본 바와 같이, 본 발명은 유해성 용제를 전혀 사용하지 않기 때문에 인체에 무해할 뿐만 아니라 토양이나 대기의 환경오염을 방지할 수 있으며, 특히 별도의 건조공정 및 접착공정이 필요없기 때문에 작업시간을 현저히 줄일 수 있고 생산공정 또한 단축시키므로 제품의 원가를 줄일 수 있는 장점이 있다.As described above, the present invention is not harmful to the human body because it does not use any harmful solvents, and can prevent environmental pollution of the soil or the air, and in particular, it does not require a separate drying process and bonding process, so It can significantly reduce and shorten the production process has the advantage of reducing the cost of the product.

Claims (5)

폴리올과 이소시아네이트의 반응에 의해 생성되는 폴리우레탄을 이용하여 합성피혁을 제조하는 방법에 있어서,In the method for producing a synthetic leather using a polyurethane produced by the reaction of a polyol and an isocyanate, 믹싱챔버(104) 내에서 폴리올과 이소시아네이트를 혼합 및 반응시켜 무용제형 폴리우레탄(106)을 겔상태로 생성하는 단계와;Mixing and reacting the polyol and isocyanate in the mixing chamber 104 to produce a solvent-free polyurethane 106 in a gel state; 상기 무용제형 폴리우레탄(106)을 이형지(102) 위에 도포한 다음, 상기 겔상태의 폴리우레탄(106) 위에 원단(110)을 밀착시켜 접착한 후, 이를 다시 숙성시켜 합성피혁을 제조하는 단계로 이루어짐을 특징으로 하는 무용제를 이용한 폴리우레탄 합성피혁의 제조방법.After applying the solvent-free polyurethane 106 on the release paper 102, and then adhered by adhering the fabric 110 on the polyurethane polyurethane 106 in the gel state, and then aged again to prepare a synthetic leather Method for producing a polyurethane synthetic leather using a solvent-free, characterized in that made. 제1항에 있어서,The method of claim 1, 상기 무용제형 폴리우레탄(106)을 이형지(102)에 도포한 다음, 이를 30~100℃에서 10~20초 동안 건조시키는 단계를 더 포함하는 것을 특징으로 하는 무용제를 이용한 폴리우레탄 합성피혁의 제조방법.Applying the solvent-free polyurethane 106 to the release paper 102, and then drying it for 30 to 10 seconds at 30 ~ 100 ℃, manufacturing method of polyurethane synthetic leather using a solvent-free . 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 숙성조건은 40~60℃이고, 시간은 약 24시간 정도임을 특징으로 하는 무용제를 이용한 폴리우레탄 합성피혁의 제조방법.The aging conditions are 40 ~ 60 ℃, time is about 24 hours, the method of producing a polyurethane synthetic leather using a solvent. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 원단은 수용성 폴리우레탄이 함침된 것임을 특징으로 하는 무용제를 이용한 폴레우레탄 합성피혁의 제조방법.The fabric is a method of producing a synthetic polyurethane leather using a solvent, characterized in that the water-soluble polyurethane impregnated. 제1항 내지 제4항 중 어느 하나의 항의 방법으로 제조된 무용제를 이용한 폴리우레탄 합성피혁.Polyurethane synthetic leather using a non-solvent prepared by the method of any one of claims 1 to 4.
KR1020040058373A 2004-07-26 2004-07-26 method of making polyurethane synthetic leather KR20040077826A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100581330B1 (en) * 2005-10-25 2006-05-22 주식회사 백산 Polyurethane porous structure of non-solvent type and method thereof using for artificial synthetic leather
KR100969041B1 (en) * 2008-03-25 2010-07-09 현대자동차주식회사 Human skin feeling polyurethane artificial leather using non-organic solvent and Preparing method thereof
CN104213432A (en) * 2014-09-26 2014-12-17 江西豪普高科涂层织物有限公司 Polyurethane (PU) synthetic leather production process allowing solid waste recycling
KR101727147B1 (en) 2015-11-10 2017-04-14 주식회사 덕성 Double firing eco friendly synthetic leather and a method of manufacturing the same
CN114311463A (en) * 2021-12-27 2022-04-12 丽水合力新材料有限公司 Solvent-free synthetic leather and manufacturing method thereof
WO2024052231A1 (en) * 2022-09-08 2024-03-14 Basf Se Solvent-free base and method for producing the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100581330B1 (en) * 2005-10-25 2006-05-22 주식회사 백산 Polyurethane porous structure of non-solvent type and method thereof using for artificial synthetic leather
KR100969041B1 (en) * 2008-03-25 2010-07-09 현대자동차주식회사 Human skin feeling polyurethane artificial leather using non-organic solvent and Preparing method thereof
CN104213432A (en) * 2014-09-26 2014-12-17 江西豪普高科涂层织物有限公司 Polyurethane (PU) synthetic leather production process allowing solid waste recycling
KR101727147B1 (en) 2015-11-10 2017-04-14 주식회사 덕성 Double firing eco friendly synthetic leather and a method of manufacturing the same
CN114311463A (en) * 2021-12-27 2022-04-12 丽水合力新材料有限公司 Solvent-free synthetic leather and manufacturing method thereof
WO2024052231A1 (en) * 2022-09-08 2024-03-14 Basf Se Solvent-free base and method for producing the same

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