KR100349890B1 - A manufacturing process of a polyurethane artificial-leather - Google Patents

A manufacturing process of a polyurethane artificial-leather Download PDF

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KR100349890B1
KR100349890B1 KR1019990052346A KR19990052346A KR100349890B1 KR 100349890 B1 KR100349890 B1 KR 100349890B1 KR 1019990052346 A KR1019990052346 A KR 1019990052346A KR 19990052346 A KR19990052346 A KR 19990052346A KR 100349890 B1 KR100349890 B1 KR 100349890B1
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South Korea
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fabric
polyurethane
artificial leather
release paper
polyurethane artificial
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KR1019990052346A
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Korean (ko)
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KR20010047928A (en
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김경규
소진풍
류현재
박진우
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(주)대우인터내셔널
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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
    • 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

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

Abstract

본 발명은 폴리우레탄 인공피혁의 제조방법에 관한 것으로, 이형지의 일정한 무늬 요철을 따라 접착용 폴리우레탄 배합액(Ⅱ)을 박막으로 나이프코팅하고, 원단(부직포, 직물, 편물 등)을 이형지에 라미네이팅으로 접착한 후, 쳄버내에서 열풍으로 일정시간 건조시킨 다음, 숙성 후 이형지에서 원단을 박리시킴으로써 폴리우레탄 인공피혁(1)을 제조하는 한편, 건식형 접착용 폴리우레탄 수지 특유의 테키성(끈적함)에 유연처리 등의 추가 후 공정을 가미시켜 차별화된 터치의 폴리우레탄 인공피혁(1)을 제조할 수 있도록 된 것으로, 건식형 박막코팅의 공법으로 통기 및 투습기능이 향상됨과 더불어 원단의 질감을 그대로 살려주는 우수한 텐더니스와 특유의 차별화된 실키 웨트 터치를 갖는 폴리우레탄 인공피혁을 제조할 수 있고, 이에 따라 기존의 인공피혁 제품과는 다른 외관과 질감을 가진 신개념의 신자재로서 여러 분야에서 다양하게 사용될 수 있게 됨에 따라 새로운 장르 및 시장형성에 크게 기여할 수 있는 것이다.The present invention relates to a method of manufacturing a polyurethane artificial leather, the coating of a polyurethane coating liquid (II) for adhesion along a certain pattern irregularities of the release paper in a thin film, laminating the fabric (non-woven fabric, fabric, knitted fabric, etc.) on the release paper And then dried in hot air for a certain period of time in the chamber, then peeling the fabric from the release paper after aging to produce a polyurethane artificial leather (1), while the unique adhesiveness of the dry resin polyurethane resin (sticky) It is possible to manufacture polyurethane artificial leather (1) of differentiated touch by adding process after adding softening process, etc., and it improves ventilation and moisture permeability by dry thin film coating method and keeps texture of fabric as it is. It is possible to manufacture polyurethane artificial leather with excellent tenderness and unique differentiated silky wet touch. As a new concept of new materials with a different appearance and texture than leather products, they can be used in various fields and contribute to new genres and market formation.

Description

폴리우레탄 인공피혁의 제조방법{A manufacturing process of a polyurethane artificial-leather}A manufacturing process of a polyurethane artificial-leather

본 발명은 특수한 공법에 의한 폴리우레탄 인공피혁의 제조방법에 관한 것으로, 특히 건식형 박막코팅 공법으로 폴리우레탄 인공피혁을 제조함으로써 통기 및 투습 등의 기능성을 부여함과 더불어 원단 자체의 우수한 질감을 유지시킬 수 있도록 한 폴리우레탄 인공피혁의 제조방법에 관한 것이다.The present invention relates to a manufacturing method of polyurethane artificial leather by a special method, in particular, by manufacturing a polyurethane artificial leather by a dry thin film coating method to impart functionality such as ventilation and moisture permeability and to maintain the excellent texture of the fabric itself It relates to a method for producing a polyurethane artificial leather to be made.

일반적으로 신발이나 의류, 잡화, 가구, 가방 및, 소파 등에는 인공피혁이 주로 사용되는 바, 이는 천연피혁이 고가일 뿐만아니라 그 제작공정이 까다롭기 때문에 이를 대체하기 위하여 제작이 쉬운 인공피혁을 제품의 전체 혹은 일부에 사용하는 것이다.In general, artificial leather is mainly used in shoes, clothing, miscellaneous goods, furniture, bags, and sofas, which is not only expensive but also difficult to manufacture, so that artificial leather is easy to manufacture. It is used for all or part of it.

즉, 상기의 제품을 생산하는데 사용되는 인공피혁 중에 건식형 폴리우레탄 인공피혁의 경우 도 1에 도시된 바와 같이, 이형지 위에 건식 피막용 폴리우레탄 배합액(Ⅰ)을 도포한 후 건조시키고, 이러한 상태에서 건식 접착용 폴리우레탄 배합액(Ⅱ)을 도포하여 적당시간 건조시키며, 여기에 원단(부직포, 작물, 편물 등) 또는 폴리우레탄으로 함침된 베이스와 접착하여 일정시간 숙성시키게 되고, 이러한 상태에서 이형지로부터 박리하여 건식형 폴리우레탄 인공피혁(101)을 제조하게 되는 것이다.That is, in the case of dry type polyurethane artificial leather in the artificial leather used to produce the above product, as shown in Figure 1, after coating the dry coating polyurethane compounding solution (I) on a release paper and dried, this state Apply the dry adhesive polyurethane compound (II) in the appropriate time to dry, and adhere to the base (non-woven fabric, crops, knitted fabrics, etc.) or the base impregnated with polyurethane, and aged for a certain time, in this state release paper It is to be peeled off to produce a dry polyurethane artificial leather (101).

그러므로, 상기 건식형 폴리우레탄 인공피혁(101)의 경우 상부에 건식 폴리우레탄 피막층(102)이 형성되고, 그 하부에 건식 폴리우레탄 접착제층(103)이 형성되며, 상기 건식 폴리우레판 접착제층(103)의 하부에 원단 또는 폴리우레탄 함침 베이스층(104)이 형성되는 구조이다.Therefore, in the case of the dry polyurethane artificial leather 101, a dry polyurethane coating layer 102 is formed on the upper portion, a dry polyurethane adhesive layer 103 is formed on the lower portion thereof, and the dry polyurethane adhesive layer ( The lower portion of the 103 is a fabric or polyurethane impregnated base layer 104 is formed.

한편, 상기와 같이 건식형 폴리우레탄 인공피혁(101)에 사용되는 배합액의 조성을 나타내면 다음과 같다.On the other hand, when the composition of the compounding liquid used in the dry type polyurethane artificial leather 101 as described above is as follows.

건식 피막용 폴리우레탄 배합액(Ⅰ)Polyurethane Blended Liquid For Dry Film (I) 폴리우레탄 수지Polyurethane resin 100100 계면활성제 ⅠSurfactant I 0.1 - 100.1-10 계면활성제 ⅡSurfactant II 0.1 - 100.1-10 메틸 에틸 케톤Methyl ethyl ketone 10 - 6010-60 디메딜 포름 아미드Dimedyl Formamide 0 - 500-50 안료(toner)Pigment 5 - 355-35

건식 접착용 폴리우레탄 배합액(Ⅱ)Dry Adhesive Polyurethane Mixture (II) 폴리우레탄 수지Polyurethane resin 100100 경화제Hardener 5 - 205-20 촉진제accelerant 0 - 50-5 메틸 에틸 케톤Methyl ethyl ketone 10 - 6010-60 디메딜 포름 아미드Dimedyl Formamide 0 - 500-50 안료(toner)Pigment 5 - 355-35

상기와 같은 배합액을 통해 제조된 종래의 건식형 폴리우레탄 인공피혁(101)은 완전 성막을 위한 피막용 폴리우레탄의 적정 도포량과, 피막과 원단의 견고한 결속을 위한 접착용 폴리우레탄의 적정 도포량으로 인해 형성되는 층막 때문에 베이스 자체의 유연한 질감 등이 저하되는 경향을 지니고 있는 것이다.Conventional dry type polyurethane artificial leather 101 produced through the above-described formulation is an appropriate coating amount of the coating polyurethane for complete film formation, and an appropriate coating amount of the adhesive polyurethane for firm binding of the coating film and fabric. Due to the formed layer film, the flexible texture of the base itself tends to be degraded.

뿐만아니라, 상기 폴리우레탄 인공피혁(101)은 피막용 및 접착용 폴리우레탄의 2중 성막으로 형성되기 때문에 인공피혁 완제품의 표면과 뒷면을 차단하게 되고, 이에 따라 통기 및 투습기능의 심각한 결여를 초래하게 되는 결점이 있었다.In addition, since the polyurethane artificial leather 101 is formed of a double layer of polyurethane for coating and adhesion, it blocks the surface and the back of the finished artificial leather, thereby causing a serious lack of ventilation and moisture permeability. There was a flaw done.

또한, 상기의 기능성 저하를 개선하기 위해 조공제 등의 각종 조제를 이용하여 미세기공 형성을 통한 상기 통기 및 투습기능의 향상을 꾀하고 있으나, 표면 평활성의 저하 및 조제와 폴리우레탄 수지의 혼용성이 아직 검증되지 않았고, 이로 인한 가격상승이 우려되는 등의 제반 문제점이 있었다.In addition, in order to improve the functional deterioration, various preparations such as pore-forming agents are used to improve the air permeability and moisture permeability through the formation of micropores, but the decrease in surface smoothness and the compatibility of the preparation and the polyurethane resin It has not been verified yet, and there are problems such as concern about price increase.

이에 본 발명은 상기한 바의 제반 문제점을 해소하기 위해 안출된 것으로, 건식형 박막코팅 공법으로 폴리우레탄 인공피혁을 제조함으로써 통기 및 투습 등의 기능성을 부여함과 더불어 원단 자체의 우수한 질감을 유지시킬 수 있도록 한 폴리우레탄 인공피혁의 제조방법을 제공함에 그 목적이 있는 것이다.Accordingly, the present invention has been made to solve all the problems described above, by providing a polyurethane artificial leather with a dry thin film coating method to provide functionality such as breathing and breathing, and to maintain the excellent texture of the fabric itself It is an object of the present invention to provide a method for producing a polyurethane artificial leather.

상기한 바의 목적을 달성하기 위한 본 발명은, 이형지의 일정한 무늬 요철을 따라 접착용 폴리우레탄 배합액(Ⅱ)을 박막으로 나이프코팅하고, 원단(부직포, 직물, 편물 등)을 이형지에 라미네이팅으로 접착한 후, 쳄버내에서 열풍으로 일정시간 건조시킨 다음, 숙성 후 이형지에서 원단을 박리시킴으로써 폴리우레탄 인공피혁을 제조하는 것이다.In order to achieve the above object, the present invention is a knife-coated polyurethane compounding liquid (II) for adhesion along a certain pattern of irregularities of the release paper, and the fabric (non-woven fabric, woven fabric, knitted fabric, etc.) by laminating on the release paper After bonding, drying for a predetermined time with hot air in the chamber, and then aged to produce a polyurethane artificial leather by peeling the fabric from the release paper.

그리고, 상기의 공정에서 극세 원사로 제직된 직물 혹은 편물이나 폴레우레탄으로 함침하고 감량시킨 극세사 부직포 베이스를 원단으로 사용하게 되면, 보다 천역피혁과 흡사한 외관과 질감을 가질 수 있도록 폴리우레탄 인공피혁을 제작할 수 있는 것이다.In the above process, when a microfiber yarn woven fabric or knitted fabric or polyurethane impregnated and reduced by using a microfiber nonwoven base is used as a fabric, a polyurethane artificial leather may be used to have an appearance and texture similar to that of natural leather. It can be produced.

따라서, 상기와 같이 건식형 박막코팅의 공법으로 통기 및 투습기능이 향상됨과 더불어 원단의 질감을 그대로 살려주는 우수한 텐더니스와 특유의 차별화된 실키 웨트 터치를 갖는 폴리우레탄 인공피혁을 제조할 수 있도록 된 것이다.Therefore, as described above, it is possible to manufacture polyurethane artificial leather having excellent tenderness and unique differentiated silky wet touch, which improves air permeability and moisture permeability through the method of dry thin film coating and preserves the texture of the fabric as it is. will be.

도 1은 종래의 기술에 따른 건식형 폴리우레탄 인공피혁을 나타낸 단면도,1 is a cross-sectional view showing a dry polyurethane artificial leather according to the prior art,

도 2는 본 발명에 따른 건식 박막 코팅용 폴리우레탄 인공피혁을 나타낸 단면도이다.2 is a cross-sectional view showing a polyurethane artificial leather for dry thin film coating according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1 : 폴리우레탄 인공피혁 2 : 원단 또는 폴리우레탄 함침 베이스층1: Polyurethane artificial leather 2: Fabric or polyurethane impregnated base layer

3 : 건식형 폴리우레탄 피막층3: dry type polyurethane film layer

이하 본 발명을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 건식 박막 코팅용 폴리우레탄 인공피혁을 도시한 단면도로서, 이 도면에 의해 본 발명을 설명하면, 이형지의 일정한 무늬 요철을 따라 접착용 폴리우레탄 배합액(Ⅱ)을 박막으로 나이프코팅하고, 원단(부직포, 직물, 편물 등)을 이형지에 라미네이팅으로 접착한 후, 쳄버내에서 열풍으로 일정시간 건조시킨 다음, 숙성 후 이형지에서 원단을 박리시킴으로써 폴리우레탄 인공피혁(1)을 제조하는 한편, 건식형 접착용 폴리우레탄 수지 특유의 테키성(끈적함)에 유연처리 등의 추가 후 공정을 가미시켜 차별화된 터치의 폴리우레탄 인공피혁(1)을 제조할 수 있도록 된 것이다.Figure 2 is a cross-sectional view showing a polyurethane artificial leather for dry thin film coating according to the present invention, when explaining the present invention by this figure, the adhesive polyurethane compound (II) for adhesion along a certain pattern irregularities of the release paper as a thin film Polyurethane artificial leather (1) is manufactured by knife coating, attaching a fabric (nonwoven fabric, fabric, knitted fabric, etc.) to a release paper by laminating, drying it for a predetermined time with hot air in a chamber, and then peeling the fabric from the release paper after aging. On the other hand, by adding a post-treatment process such as a soft treatment (thickness) peculiar to the dry adhesive polyurethane resin, it is possible to manufacture a polyurethane artificial leather (1) of a differentiated touch.

여기서, 상기와 같이 제조되는 폴리우레탄 인공피혁(1)은 원단 또는 폴리우레탄 함침 베이스층(2)에 접착 겸용의 건식형 폴리우레탄 피막층(3)을 박막코팅한 것을 그 특징으로 하는 것이다.Here, the polyurethane artificial leather (1) manufactured as described above is characterized in that the dry-type polyurethane coating layer (3) of the adhesive and combined with the fabric or polyurethane impregnated base layer (2).

즉, 상기 폴리우레탄 인공피혁(1)에 사용되는 원단은 폴리우레탄 함침 및 감량에 의해 제조되어지는 극세사 부직포 베이스가 사용되거나, 혹은 극세사로 제직된 직물 또는 편물을 이용한 원단 및, 기타 원사로 제조된 원단이 사용되는 것이다.In other words, the fabric used in the polyurethane artificial leather (1) is made of a microfiber nonwoven base that is manufactured by polyurethane impregnation and weight reduction, or a fabric using a fabric or knitted fabric woven with microfiber, and other yarns Fabric is used.

그리고, 상기의 원단에 부착되는 이형지 위에 고유 무늬를 따라 박막코딩으로 최소량의 폴리우레탄을 도포함으로써 통기 및 투습성 등의 기능을 부여하여 원단 자체의 우수한 질감을 유지시키고, 천연피혁 보다 더욱 우수하고 차별화된 질감과 외관을 가진 폴리우레탄 인공피혁(1)을 제조하는 것이다.In addition, by applying a minimum amount of polyurethane with a thin film coding along a unique pattern on the release paper attached to the fabric, it provides functions such as air permeability and moisture permeability to maintain excellent texture of the fabric itself, and is superior and differentiated from natural leather. It is to produce a polyurethane artificial leather (1) having a texture and appearance.

한편, 상기와 같이 건식형 제조공정을 제조된 폴리우레탄 인공피혁(1)의 이후 공정으로, 유연제 등이 적당 비율로 투여된 수용액에 상기와 같이 박리된 폴리우레탄 인공피혁(1)을 함침시킨 후 완전 건조시키게 되면, 접착용 폴리우레탄 수지 특유의 테키성(끈적함)을 반감시키게 되고, 부드럽고 촉촉한 터치를 유발시키게 됨으로써 천연피혁 보다 우수하고 차별화된 실키 웨트 텐더니스(silky wet tenderness)를 보유한 제품을 생산할 수 있는 것이다.On the other hand, as a post-process of the polyurethane artificial leather (1) manufactured the dry type manufacturing process as described above, after impregnating the polyurethane artificial leather (1) peeled as described above in an aqueous solution in which a softening agent or the like is administered at an appropriate ratio. When completely dried, the product's unique adhesiveness (thickness) is halved, and the soft and moist touch is generated, thereby producing a product having better and differentiated silky wet tenderness than natural leather. It can be.

그러므로, 상기의 방법으로 제조된 폴리우레탄 인공피혁(1)은 우수한 통기 및 투습기능을 갖음과 동시에 차별화된 터치와 극대화된 텐더니스 등을 갖게 되고, 이형지를 활용한 다양한 패턴과 사용자 요구에 따른 다양한 칼라를 부여할 수 있으며, 용도별로 여러가지의 두께를 적용함으로써 케주얼 슈(casual shoe), 가구용 및, 의류용 자재로 유용하게 사용될 수 있는 것이다.Therefore, the polyurethane artificial leather (1) manufactured by the above method has excellent ventilation and moisture permeability, and at the same time has a differentiated touch and maximized tenderness, and various patterns using release paper and various kinds according to user requirements. Color can be given, and by applying various thicknesses for each use, it can be usefully used as a material for casual shoes, furniture, and clothes.

이상에서 설명한 바와 같이 본 발명에 따른 폴리우레탄 인공피혁의 제조방법에 의하면, 건식형 박막코팅의 공법으로 통기 및 투습기능이 향상됨과 더불어 원단의 질감을 그대로 살려주는 우수한 텐더니스와 특유의 차별화된 실키 웨트 터치를 갖는 폴리우레탄 인공피혁을 제조할 수 있고, 이에 따라 기존의 인공피혁 제품과는 다른 외관과 질감을 가진 신개념의 신자재로서 여러 분야에서 다양하게 사용될 수 있게 됨에 따라 새로운 장르 및 시장형성에 크게 기여할 수 있는 효과가 있는 것이다.As described above, according to the manufacturing method of the artificial polyurethane polyurethane according to the present invention, the method of drying thin film coating improves ventilation and moisture permeability, and preserves the texture of the fabric as it is. Polyurethane artificial leather with wet touch can be manufactured, and as a new concept of new material with appearance and texture different from existing artificial leather products, it can be used in various fields in various fields. There is an effect that can greatly contribute.

Claims (2)

삭제delete 이형지의 일정한 무늬 요철을 따라 접착용 폴리우레탄 배합액(Ⅱ)을 박막으로 나이프코팅하고, 부직포, 직물, 편물 등으로 된 원단을 이형지에 라미네이팅으로 접착한 후, 쳄버내에서 열풍으로 일정시간 건조시킨 다음, 숙성 후 이형지에서 원단을 박리시킴으로써 제작할 수 있도록 된 폴리우레탄 인공피혁의 제조방법에 있어서,Along with the regular pattern irregularities of the release paper, knife-coated adhesive polyurethane compound (II) was coated with a thin film, and a nonwoven fabric, fabric, and knitted fabric were laminated to the release paper by laminating, and then dried in a chamber for a predetermined time by hot air. Next, in the manufacturing method of polyurethane artificial leather that can be produced by peeling the fabric from the release paper after aging, 유연제가 포함된 수용액에 이형지가 박리된 폴리우레탄 인공피혁을 함침시켜 차별화된 터치의 제품을 제작할 수 있도록 된 것을 특징으로 하는 폴리우레탄 인공피혁의 제조방법.Method for producing a polyurethane artificial leather, characterized in that the impregnated polyurethane artificial leather with release paper peeled in an aqueous solution containing a softening agent to produce a product of a differentiated touch.
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KR101185412B1 (en) 2012-06-29 2012-09-24 정지권 A human work leather product method by aqueous polyurethane
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