KR101580810B1 - Method for producing a thermoplastic polyurethane composition to recycle scrap and environment-friendly synthetic leather using the same film - Google Patents
Method for producing a thermoplastic polyurethane composition to recycle scrap and environment-friendly synthetic leather using the same film Download PDFInfo
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- KR101580810B1 KR101580810B1 KR1020140173977A KR20140173977A KR101580810B1 KR 101580810 B1 KR101580810 B1 KR 101580810B1 KR 1020140173977 A KR1020140173977 A KR 1020140173977A KR 20140173977 A KR20140173977 A KR 20140173977A KR 101580810 B1 KR101580810 B1 KR 101580810B1
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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
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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
- D06N3/141—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 mixture of two or more polyurethanes in the same layer
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
본 발명은 각종 신발 및 가구, 가방, 인테리어 벽지 등의 생활용품인, 폴리우레탄수지(Poly Urethane Resin) 코팅액을 이용하여 합성피혁을 제조하는 것으로써, 신발 산업에서 제조 공정중에 사용되고 남은 열가소성 폴리우레탄(TPU, Thermoplastic Poly Urethane) 필름을 회수하여, 이를 재가공하여 만들어진 스크랩을 포함하여, 각종 기재의 합성피혁을 제조하는 것으로서, 상세하게는 신발 제조 공정중에 열가소성 폴리우레탄 필름에 고주파 융착의 방법으로 신발 원단에 여러 가지 형태로 접착시키는 공정이 빈번하게 행하여지고 있으며 이 과정에서 일부의 원하는 모양의 필름만 신발 원단에 부착이 되고 나머지 주변의 불필요한 부분들은 폐기되어지는데, 이 폐기물은 다시 두가지의 종류로 나누어진다. 첫째는 핫멜트필름(HMF, Hot Melt Film) 스크랩이고, 두 번째는 PU SKIN과 접착제층을 포함하는 유색의 TPU 스크랩이다. 본 발명에서는 HMF 스크랩을 용매에 용해한 HMF PU 용액에, PU SKIN과 접착제층을 함유한 유색의 TPU 스크랩을 파쇄한 편상의 스크랩을 적정 비율로 첨가하여, 각종 기재에 코팅, 건조 이후에, 표면을 무광 엠보롤(Emboss Roll)로 엠보싱(Embossing)을 함으로써, 각종 신발 및 가구, 가방, 인테리어 벽지 등의 생활용품에 사용되는 각종 친환경 합성피혁을 제조하는 방법에 대한 것이다.The present invention relates to a process for producing synthetic leather by using a polyurethane resin coating liquid which is a household article such as various shoes, furniture, bags, interior wallpapers and the like, which is used in the manufacturing process of the remaining thermoplastic polyurethane TPU, and Thermoplastic Poly Urethane (TPU) film to produce synthetic leather of various base materials including scrap made by reprocessing it. More specifically, the present invention relates to a method for producing synthetic leather of various base materials, In this process, only some desired film is adhered to the shoe fabric, and the unnecessary parts around the remainder are discarded. The waste is again divided into two kinds. The first is a Hot Melt Film (HMF) scrap, and the second is a colored TPU scrap containing PU SKIN and an adhesive layer. In the present invention, the HMF PU solution obtained by dissolving HMF scrap in a solvent is coated with PU SKIN and a scrap of a colored TPU scrap containing an adhesive layer in an appropriate ratio to coat various substrates and after drying, The present invention relates to a method for manufacturing a variety of environmentally friendly synthetic leather used in daily necessities such as various shoes, furniture, bags, interior wallpapers and the like by embossing with an emboss roll.
Description
본 발명은 폴리우레탄수지(Poly Urethane Resin) 코팅액을 이용하여 합성피혁을 제조하는 방법에 관한 것으로써, 보다 상세하게는 신발 제조 공정중에 폐기되거나 저급한 용도로 재활용 되던 열가소성 폴리우레탄(TPU, Thermoplastic Poly Urethane) 필름 스크랩을 재활용하여 생산된 두가지의 종류, 즉, 핫멜트필름(HMF, Hot Melt Film) 스크랩과, PU SKIN과 접착제층을 포함하는 유색의 TPU 스크랩을 이용하여, HMF 스크랩을 용매에 용해한 HMF PU 용액에, PU SKIN과 접착제층을 함유한 유색의 TPU 스크랩을 파쇄한 유색 편상 스크랩을 적정 비율로 첨가하여 제조한 코팅액으로, 각종 기재에 코팅, 건조한 이후에, 표면을 무광 엠보롤(Emboss Roll)로 엠보싱(Embossing)을 함으로써, 각종 신발 및 가구, 가방, 인테리어 벽지, 전봇대 부착물 방지재 등의 생활용품에 사용되는 각종 친환경 합성피혁을 제조하는 방법에 대한 것이다.The present invention relates to a method for producing a synthetic leather using a polyurethane resin coating liquid, and more particularly, to a method for producing a synthetic leather using a polyurethane resin coating liquid. More particularly, the present invention relates to a thermoplastic polyurethane (TPU), which is discarded or recycled for a low- ) HMF PU with HMF scrap dissolved in solvent was prepared by using two kinds of scrap made by recycling film scrap, namely, hot melt film (HMF) scrap and colored TPU scrap including PU SKIN and adhesive layer The coating solution prepared by adding PU SKIN and a colored fountain scrap, which is obtained by crushing colored TPU scraps containing an adhesive layer, to a solution, and coating the resultant on various substrates and then drying, the surface is coated with a matte emboss roll, By embossing, various eco-friendly synthetic pineapples are used for daily necessities such as shoes, furniture, bags, interior wallpaper, To a method for the manufacture.
일반적으로 각종 신발 및 가구, 가방, 인테리어 벽지 등에 적용되는 합성피혁을 제조 시 코팅제로는 폴리우레탄수지(Poly urethane resin) 또는 폴리비닐클로라이드(PVC)를 주로 이용하였다. 상기 PVC는 환경문제로 인해 사용이 규제되는 추세여서 현재는 대부분 폴리우레탄수지를 이용한 합성피혁을 제조하고 있다.Generally, polyurethane resin or polyvinyl chloride (PVC) is mainly used as a coating agent in the production of synthetic leather to be applied to various shoes, furniture, bags, interior wallpapers and the like. Since the use of PVC is regulated due to environmental problems, synthetic leather using polyurethane resin is mostly manufactured at present.
또한, 신발 제조 공정중에서, 열가소성 폴리우레탄(TPU, Thermoplastic Poly Urethane) 필름에 고주파 융착의 방법으로 신발 원단에 여러 가지 형태로 접착시키는 공정이 빈번하게 행하여지고 있으며, 이 과정에서 일부의 원하는 모양의 필름만 신발 원단에 부착이 되고 나머지 주변의 불필요한 부분들은 폐기되어지는데, 이들 폐기물들은 두가지 종류, 즉, 핫멜트필름(HMF, Hot Melt Film) 스크랩과, PU SKIN과 접착제층을 포함하는 유색의 TPU 스크랩으로 나누어진다. 상기와 같은 스크랩들은 폐기되는 것이 일반적인데, 이는 환경오염의 문제로 이어지므로 이들을 재활용하는 방안이 필요하다. 따라서 상기의 HMF 스크랩을 용매에 용해한 HMF PU 용액에, PU SKIN과 접착제층을 함유한 유색의 TPU 스크랩을 파쇄한 유색 편상 스크랩을 적정 비율로 첨가하여 제조한 코팅액으로, 열가소성 폴리우레탄수지 코팅액을 이용한 합성피혁을 제조하는 기술 개발을 진행하였다.In addition, in the shoe manufacturing process, a process of bonding various kinds of thermoplastic polyurethane (TPU) films to a shoe fabric by a high-frequency welding method is frequently performed. In this process, The waste is attached to the fabric of the shoe and the unnecessary parts around the remainder are discarded. These wastes are divided into two types: hot melt film (HMF) scraps and colored TPU scrap including PU SKIN and adhesive layer Divided. Such scraps are generally discarded, which leads to the problem of environmental pollution, and therefore there is a need to recycle them. Therefore, a coating liquid prepared by adding PU SKIN and colored fountain scrap, in which a colored TPU scrap containing an adhesive layer is crushed, to an HMF PU solution obtained by dissolving the HMF scrap in a solvent in an appropriate ratio, and using a thermoplastic polyurethane resin coating solution We have developed the technology to manufacture synthetic leather.
이와 같이, 상기에서 생산된 열가소성 폴리우레탄 필름 스크랩를 이용하여, 신발 제조 공정중에 발생하는 열가소성 폴리우레탄 필름 스크랩으로 인한 폐기물의 환경오염을 줄이고, 자원 낭비를 미연에 방지하기 위해, 폐기되는 HMF 스크랩을 적당한 용매에 용해시키고, 유색의 편상 스크랩을 첨가하여 제조한 코팅액으로, 코팅, 건조한 이후, 표면을 무광 엠보롤(Emboss Roll)로 엠보싱(Embossing)을 실시한, 각종 기재를 제조함으로써 폐기물로 인한 환경오염을 줄이고, 자원의 낭비를 미연에 방지하고자 하는 기술 개발을 진행하였다.In order to reduce the environmental pollution of the waste due to the thermoplastic polyurethane film scrap generated during the shoe manufacturing process and to prevent the waste of resources by using the thermoplastic polyurethane film scrap produced as described above, After coating and drying with a coating solution prepared by dissolving in a solvent and adding colored scrap, the surface is embossed with a emboss roll and various kinds of substrates are manufactured. And to develop technologies to prevent waste of resources.
따라서, 본 발명은 신발 제조 공정중에 발생하는 열가소성 폴리우레탄 필름 스크랩을 재활용하여, HMF 스크랩을 적당한 용매에 용해시킨 용액에, 유색의 편상 스크랩을 첨가하여 제조한 코팅액으로, 각종 기재에 독특한 무늬와 우수한 내마모성 및 우수한 부착력의 물성을 나타내는 합성피혁을 제조함으로써, 폐기물로 인한 환경오염을 줄이고, 자원의 낭비를 미연에 방지하고자 하는 사상에서 출발하여 본 발명을 완성하였다.Accordingly, the present invention relates to a coating solution prepared by recycling a thermoplastic polyurethane film scrap generated during a shoe manufacturing process and adding a colored flake scrap to a solution in which an HMF scrap is dissolved in a suitable solvent, The present invention has been accomplished based on the idea of reducing the environmental pollution caused by waste by preventing the waste of resources by producing synthetic leather showing wear resistance and excellent adhesion property.
본 발명은 상기와 같은 각종 신발 및 가구, 가방, 인테리어 벽지, 전봇대 부착물 방지재 등의 생활용품에 적용하기 위한 합성피혁을 제조함에 있어서, 폐기 처분되거나 저급한 용도로 재활용되던 열가소성 폴리우레탄(TPU, Thermoplastic Poly Urethane) 필름 스크랩을 재활용하여, HMF 스크랩을 적당한 용매에 용해시킨 용액에, 유색의 편상 스크랩을 첨가하여 제조한 코팅액으로써, 각종 기재에 독특한 무늬와 우수한 내마모성 및 우수한 부착력의 물성을 제공하는 각종 신발용 및 가구용, 생활용품 등에 최적으로 적합한 친환경 합성피혁을 제공함에 그 목적이 있다.The present invention relates to a thermoplastic polyurethane (TPU) which is discarded or recycled for a low use in producing synthetic leather for use in daily necessities such as various shoes, furniture, bags, interior wallpaper, Poly Urethane It is a coating liquid prepared by adding colored scrap to a solution in which HMF scrap is recycled in an appropriate solvent to recycle the film scrap. Various kinds of shoe that provide unique patterns, excellent abrasion resistance, The present invention has been made to provide an environmentally friendly synthetic leather which is suitable for furniture, furniture and household goods.
상기와 같은 목적을 달성하기 위한 본 발명에 따른 열가소성 폴리우레탄(TPU, Thermoplastic Poly Urethane) 필름 스크랩을 재활용하는 조성물 및 이를 이용한 친환경 합성피혁의 제조 방법은, 부직포, 직물, TPU SHEET, 습.건식 합성피혁 등의 각종 기재 위에, HMF 스크랩을 적당한 용매에 용해시킨 용액 및 각종 첨가제를 적정 비율로 희석하여, 제조한 코팅액을 준비하는 제 1단계와, 상기 코팅액에 PU SKIN과 접착제층이 포함되어 있는 유색의 편상 스크랩을 적정 비율로 첨가하여, 제조한 코팅액을 준비하는 제 2단계와, 상기의 PU SKIN과 접착제층이 포함되어 있는 유색의 편상 스크랩이 포함된 HMF를 재활용한 용액의 코팅액으로, 콤마 코터(Comma Coater)를 이용하여, 다이렉트(Direct) 코팅 방법으로 코팅;을 하고, 건조를 진행시킨 이후에, 표면을 무광 엠보롤(Emboss Roll)로 엠보싱(Embossing) 하여, 합성피혁을 제조하는 단계로 이루어지는 친환경 합성피혁의 제조 방법을 제공한다.In order to accomplish the above object, there is provided a composition for recycling a film scrap of a thermoplastic polyurethane (TPU) according to the present invention and a method for producing an environmentally friendly synthetic leather using the same, which comprises: a nonwoven fabric, a fabric, a TPU sheet, A first step of preparing a coating solution prepared by diluting a solution prepared by dissolving HMF scrap in an appropriate solvent and various additives in an appropriate ratio on various substrates such as leather and leather and a coloring agent containing PU SKIN and an adhesive layer A second step of preparing a prepared coating liquid by adding a scooped scrap of a coloring material to the base material, and a second step of preparing the prepared coating liquid by using a comma coater (Comma Coater), coating was carried out by a direct coating method, and after drying was carried out, the surface was immersed in a matt emboss roll Singh (Embossing) and, provides a process for the production of environmentally-friendly synthetic leather comprising a step of producing a synthetic leather.
또한, 상기에서 제조된 합성피혁 표면 위에 표면 물성 및 각종 TOUCH감을 부여하기 위하여 방오처리제(특허 등록번호 10-1235568) 또는 표면 TOUCH 개선용 처리제로 표면을 처리하는 단계를 더 포함하는 것이 가능하다.Further, it is possible to further include a step of treating the surface with the antifouling agent (Patent Registration No. 10-1235568) or the treating agent for improving surface TOUCH in order to impart surface properties and various TOUCH feeling to the synthetic leather surface prepared above.
본 발명에 의하면, 열가소성 폴리우레탄(TPU, Thermoplastic Poly Urethane) 필름 스크랩을 재활용하여 제조하는 합성피혁은, 신발 제조 공정중에 발생하는 열가소성 폴리우레탄 필름 스크랩을 재활용하는 방법으로, HMF 스크랩을 적당한 용매에 용해시킨 용액에, 유색의 편상 스크랩을 첨가하여 제조한 코팅액으로, 각종 기재에 독특한 무늬와 우수한 내마모성 및 우수한 부착력의 물성을 제공하며, 폐기물로 인한 환경오염을 줄이고, 자원의 낭비를 미연에 방지하여, 경제적인 효과 및 친환경적인 효과를 얻을 수 있는 각종 신발용 및 가구용, 생활용품 등에 최적으로 적합한 친환경 합성피혁을 제공할 수 있는 효과가 있다.According to the present invention, a synthetic leather produced by recycling a thermoplastic polyurethane (TPU) film scrap is a method for recycling a thermoplastic polyurethane film scrap generated during a shoe manufacturing process. The HMF scrap is dissolved in an appropriate solvent Which is a coating solution prepared by adding colored scaly scrap to a solution prepared by adding colored scrap to a solution prepared by dissolving or dispersing a coloring agent in a solvent, to provide various patterns with unique patterns, excellent abrasion resistance, It is possible to provide an eco-friendly synthetic leather suitable for various shoe, furniture, household goods and the like that can obtain an economical effect and an environment-friendly effect.
이하에서는 바람직한 실시예를 통하여 본 발명을 보다 상세히 설명한다. 하기의 설명은 본 발명의 실시와 이해를 돕기 위한 것이지 본 발명을 이에 한정하는 것은 아니다. 당업자들은 이하의 특허청구의 범위에 기재된 본 발명의 사상내에서 다양한 변형 및 변경이 있을 수 있음을 이해할 것이다.Hereinafter, the present invention will be described in more detail with reference to preferred embodiments. The following description is intended to assist in the understanding and understanding of the present invention, but is not to be construed as limiting the invention thereto. It will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit of the invention as set forth in the following claims.
본 발명은 기본적으로 합성피혁의 제조방법이고, 열가소성 폴리우레탄(TPU, Thermoplastic Poly Urethane) 필름 스크랩이 포함된 폴리우레탄수지 코팅액을 이용하는 것이다.The present invention is basically a method for producing synthetic leather, and uses a polyurethane resin coating liquid containing thermoplastic polyurethane (TPU) film scrap.
즉, 각종 기재(부직포, 직물, TPU SHEET, 습.건식 합성피혁 등) 위에 상기의 HMF 스크랩을 적당한 용매에 용해시킨 용액에, 각종 첨가제를 적정 비율로 희석하여 제조한 코팅액을, 유색의 편상 스크랩을 첨가하여 제조한 코팅액으로, 콤마코터를 이용하여 다이렉트 코팅 방법으로 코팅;을 하고, 건조하는 단계; 이후에, 표면을 무광 엠보롤(Emboss Roll)로 엠보싱(Embossing) 하는 것을 포함하는, 상기의 폴리우레탄수지 코팅액에 열가소성 폴리우레탄 필름 스크랩을 포함하는 코팅액으로 코팅함으로써, 각종 원단류를 사용하여, 독특한 무늬와 우수한 내마모성 및 우수한 부착력의 물성을 제공하며, 폐기물로 인한 환경오염을 줄이고, 자원의 낭비를 미연에 방지하여 경제적인 효과 및 친환경적인 효과를 얻을 수 있는 각종 신발용 및 가구용, 생활용품 등에 최적으로 적합한 기재를 제공하는 친환경 합성피혁을 제조하는 방법이다.That is, a coating liquid prepared by diluting various additives in an appropriate ratio to a solution obtained by dissolving the HMF scrap in an appropriate solvent on various substrates (nonwoven fabric, fabric, TPU sheet, moist synthetic leather, etc.) Coating the coating solution with a direct coating method using a comma coater, and drying the coating solution; Thereafter, by coating the above-mentioned polyurethane resin coating liquid with a coating liquid containing a thermoplastic polyurethane film scrap, including embossing the surface with a matte emboss roll, various fabrics are used to form a unique It is suitable for various shoes, furniture, household goods, etc. which can provide economical effect and eco-friendly effect by providing a pattern, excellent abrasion resistance and excellent adhesion property, reducing environmental pollution caused by waste, and preventing waste of resources Friendly synthetic leather that provides a suitable substrate for the environmentally friendly synthetic leather.
구체적으로는, 각종 기재(부직포, 직물, TPU SHEET, 습.건식 합성피혁 등) 위에, HMF 스크랩을 적당한 용매에 용해시킨 용액 및 각종 첨가제를 적정 비율로 희석하여, 제조한 코팅액을 준비하는 제 1단계와, 상기 코팅액에 PU SKIN과 접착제층이 포함되어 있는 유색의 편상 스크랩을 적정 비율로 첨가하여, 제조한 코팅액을 준비하는 제 2단계와, 상기의 PU SKIN과 접착제층이 포함되어 있는 유색의 편상 스크랩이 포함된 HMF를 재활용한 용액의 코팅액으로, 콤마 코터(Comma Coater)를 이용하여 다이렉트(Direct) 코팅 방법으로 코팅;을 하고, 건조를 진행시킨 이후에, 표면을 무광 엠보롤(Emboss Roll)로 엠보싱(Embossing)을 진행시키는 단계;로 이루어진다.Specifically, a solution obtained by dissolving HMF scrap in an appropriate solvent and various additives are diluted with appropriate ratios on various substrates (nonwoven fabric, fabric, TPU sheet, wet synthetic leather, etc.) A second step of adding a colored flaky scrap containing PU SKIN and an adhesive layer to the coating liquid at an appropriate ratio to prepare a coating solution; and a second step of preparing a colored liquid containing the PU SKIN and the adhesive layer The HMF containing reclaimed scrap was coated with a solution of the recycled solution by a direct coating method using a Comma Coater and after the drying was carried out, the surface was subjected to Emboss Roll And then embossing the embossed image.
상기에서 엠보싱(Embossing) 이후에는, 표면 물성 및 각종 TOUCH감을 부여하기 위하여 방오처리제 또는 표면 TOUCH 개선용 처리제로 상기 열가소성 폴리우레탄 필름 스크랩이 포함된 폴리우레탄수지가 코팅된 표면을 표면 처리하는 단계를 더 포함하는 것도 가능하다.After embossing, a step of surface-treating a surface coated with a polyurethane resin containing the thermoplastic polyurethane film scrap with an antifouling agent or a treating agent for surface TOUCH improvement to give surface properties and various TOUCH feelings It is also possible to include it.
본 발명에서 사용되는 폴리우레탄수지는 디메틸포름아미드 또는 휘발성 케톤을 포함하는 혼합 용매를 사용하여 제조한 것으로써, 가공성을 향상시키기 위하여 최종 완제품의 특성에 따라서 디메틸포름아미드 또는 휘발성 케톤을 상기의 열가소성 폴리우레탄수지 100중량부 대비 10∼200 중량부로 첨가하여 사용할 수도 있다.The polyurethane resin used in the present invention is prepared by using a mixed solvent containing dimethylformamide or volatile ketone. In order to improve the processability, dimethylformamide or volatile ketone may be added to the thermoplastic poly 10 to 200 parts by weight based on 100 parts by weight of the urethane resin may be used.
특별히, 본 발명은 각종 신발용 및 가구용, 생활용품 등에 사용되는 합성피혁의 코팅층으로 사용되는 열가소성 폴리우레탄수지는, 적용되는 각종 원단류에 따라서 또는 최종 완제품의 기계적 물성 및 감성적인 물성을 고려하여 서로 다르게 적용할 수 있는데, 본 발명자는 경도가 높고, 신율이 낮은 것을 이용하는 경우, 각종 가구용 및 생활용품에 적용되는 기재로써 우수한 물성을 나타낸다는 것을 확인한 후, 본 발명을 완성하였다.Particularly, the present invention relates to a thermoplastic polyurethane resin which is used as a coating layer of synthetic leather used for various shoe, furniture, household goods and the like. The thermoplastic polyurethane resin is used in various kinds of fabrics to be applied or in consideration of mechanical properties and emotional properties of final products The inventors of the present invention have completed the present invention after confirming that they exhibit excellent physical properties as a substrate to be applied to various furniture and daily necessities when a high hardness and a low elongation are used.
이하에서는, 각종 신발용 및 가구용, 생활용품용 등에 적용되는 폴리우레탄수지 코팅액을 이용한 합성피혁의 제조방법을 구체적으로 설명한다.Hereinafter, a method for producing synthetic leather using a polyurethane resin coating liquid applied to various shoes, furniture, household goods, etc. will be described in detail.
[각종 신발용 및 가구용, 생활용품용 합성피혁의 제조방법][Manufacturing Method of Synthetic Leather for Various Shoes, Furniture, Household Goods]
각종 신발용 및 가구용, 생활용품용 등으로 적합한 합성피혁을 제조하기 위하여, 원단으로써, 각종 부직포 및 직물, TPU SHEET, 습.건식 합성피혁 등의 소재를 다양하게 사용할 수 있다.Various fabrics such as various nonwoven fabrics and fabrics, TPU SHEET, wet and dry synthetic leather, etc. can be used as fabrics in order to produce synthetic leather suitable for various shoes, furniture, household goods and the like.
여기에, 폴리우레탄수지의 코팅 가공 특성(가공온도 및 가공속도 등)을 고려하여 희석제 및 산화방지제, UV 조제, 분산제, 실리카를 첨가함으로써 가공 점도를 1,000∼300,000cps/25℃ 로 조절할 수도 있다. 이렇게 제조된 폴리우레탄수지 코팅액을, PU SKIN과 접착제층이 포함되어 있는 유색의 편상 스크랩을 적정 비율로 첨가하여 제조한 코팅액을 준비하고, 상기의 PU SKIN과 접착제층이 포함되어 있는 유색의 편상 스크랩이 포함된 폴리우레탄수지 코팅액으로, 콤마코터를 이용하여 각종 기재 위에 적정 도포량(500∼900g/㎡)으로 다이렉트 코팅 방법;으로 코팅을 한 후, 110∼140℃의 열풍 Oven에서 건조;를 진행시키는 것이 가능하다. 이때 건조 방법은 온도가 높을수록 빠른 시간에 건조를 할 수 있으며, 가공속도를 10∼12 m/min로 하는 것이 가공 작업성을 확보하면서 폴리우레탄수지 코팅액을 건조하기에 가장 적합하다.The working viscosity may be adjusted to 1,000 to 300,000 cps / 25 占 폚 by adding a diluent, an antioxidant, a UV preparation agent, a dispersant, and silica in consideration of the coating processing characteristics (processing temperature and processing speed, etc.) of the polyurethane resin. The thus prepared polyurethane resin coating solution was prepared by adding a colored flake scrap containing PU SKIN and an adhesive layer in a proper ratio, and then a colored liquid prepared by adding the PU SKIN and the adhesive layer, (500 to 900 g / m < 2 >) on various substrates using a comma coater, followed by drying in hot air oven at 110 to 140 DEG C It is possible. At this time, the drying method can dry at a higher temperature as the temperature is higher, and the processing speed of 10 to 12 m / min is most suitable for drying the polyurethane resin coating liquid while ensuring the workability of the processing.
이후에, 표면을 무광 엠보롤(Emboss Roll)을 이용하여 엠보싱(Embossing)을 진행한다.Thereafter, the surface is subjected to embossing using a matte emboss roll.
또한, 상기와 같이 제조된 기재의 표면 특성 또는 감촉을 조절하기 위하여, 방오처리제 또는 표면 TOUCH 개선용 처리제를 이용하여 표면처리를 하는 것이 적합하다.Further, in order to control the surface characteristics or texture of the base material produced as described above, it is suitable to perform the surface treatment using an antifouling treatment agent or a treatment agent for surface TOUCH improvement.
＜원단 준비＞<Preparation of fabric>
각종 신발용 및 가구용, 생활용품용으로 적합한 기재를 제조하기 위하여, 원단으로써, 재생 Polyester fiber를 이용하여, 중량이 150∼250 g/㎡ 이고, 밀도가 0.2∼0.3 g/m㎡ 인 니들펀칭 부직포를 이용한다. 그리고, 부직포 내 원사의 밀도를 높이기 위해서 50℃∼150℃ 범위내의 온도로 열압착 롤을 이용하였고, 이렇게 제조된 부직포의 후도가 0.8∼1.6mm 가 되도록 하였다. 또한, 완제품의 신율을 조절하기 위해서 중량이 180∼230 g/㎡ 인 스크림 원단을 부직포 제조 시 웹 중간에 삽입한 후 니들 펀칭을 이용하여 제조함으로써, 부직포의 신율을 조절하는 것이 가능한 재활용 부직포를 이용한다.To produce a substrate suitable for various shoes, furniture, and household goods, a recycled polyester fiber is used as a fabric, and a needle punching nonwoven fabric having a weight of 150 to 250 g / m 2 and a density of 0.2 to 0.3 g / . In order to increase the density of the yarn in the nonwoven fabric, a thermocompression roll was used at a temperature within the range of 50 ° C to 150 ° C, and the nonwoven fabric thus produced had a fineness of 0.8 to 1.6 mm. Further, in order to control the elongation of the finished product, a recycled nonwoven fabric which is capable of regulating the elongation of the nonwoven fabric is used by inserting a scrim fabric having a weight of 180 to 230 g / m < 2 > .
＜코팅액 제조＞≪ Preparation of coating liquid &
제 1단계로, 폴리우레탄수지 코팅액은, HMF 스크랩(삼부정밀화학) 100부를 투입하고, 휘발성 케톤 용매(MEK) 100부, 디메틸포름아미드(DMF) 20부, Pigment Toner(일삼, SU-BLACK 11-237) 0.5부, 산화방지제(ADEK FINE CHEMICAL, ADK STAB AO-60) 1부, UV 조제(C&A, CINASORB) 2부, 분산제(BYK-CHEMIE GmbH, BYK-066N) 1부, 실리카(EVONIK, ACEMATT TS-100) 2부를 차례로 투입하여 희석하였으며, 코팅액의 점도가 약 7,000∼12,000 cps/25℃ 범위에 들어올 수 있도록 함으로써 제1코팅액을 제조하였다.As a first step, 100 parts of HMF scrap (Sambu Fine Chemical) was added to 100 parts of volatile ketone solvent (MEK), 20 parts of dimethylformamide (DMF), 20 parts of Pigment Toner (SU-BLACK 11 1 part of an antioxidant (ADEK FINE CHEMICAL, ADK STAB AO-60), 2 parts of a UV preparation (C & A, CINASORB), 1 part of a dispersing agent (BYK-CHEMIE GmbH, BYK-066N) ACEMATT TS-100) was added in order to prepare a first coating solution by allowing the viscosity of the coating solution to fall within the range of about 7,000 to 12,000 cps / 25 ° C.
제 2단계로, 상기의 폴리우레탄수지 코팅액에 PU SKIN과 접착제층이 포함되어 있는 유색의 편상 스크랩(삼부정밀화학) 50부를 투입하여, 코팅액의 점도가 약 10,000∼15,000 cps/25℃ 범위에 들어올 수 있도록 함으로써 제2코팅액을 제조하였다.In the second step, 50 parts of colored scrap (Sambu Fine Chemical) containing PU SKIN and an adhesive layer were added to the above polyurethane resin coating solution to obtain a coating solution having a viscosity of about 10,000 to 15,000 cps / 25 占 폚 To prepare a second coating liquid.
상기의 2차 코팅액에 투입되는 PU SKIN과 접착제층이 포함되어 있는 유색의 편상 스크랩은 10∼100부를 사용하는 것이 적당하다. 이는, 10부 이하를 사용하는 경우에는 열가소성 폴리우레탄 필름 스크랩으로 인한 표면의 독특한 무늬 효과가 제대로 발현되지 못하며, 100부 이상을 사용하는 경우에는 열가소성 폴리우레탄 필름 스크랩이 과다하게 분포되어 부착력이 매우 나빠지는 문제점이 발생한다.It is appropriate to use 10 to 100 parts of colored scabs containing PU SKIN and the adhesive layer to be added to the secondary coating solution. This is because, when 10 parts or less is used, the unique pattern effect of the surface due to the thermoplastic polyurethane film scrap is not properly manifested. When 100 parts or more is used, the thermoplastic polyurethane film scrap is excessively distributed, A problem occurs.
＜코팅 가공 및 표면처리 가공＞<Coating and Surface Treatment Processing>
상기와 같이 제조된 제2코팅액으로, 상기 원단을 이용하고, 콤마코터를 이용하여 다이렉트 코팅 방법에 의해 코팅 가공을 진행하였다. 이때, 제2코팅액을 상기 원단 위에 600g/㎡의 도포량으로 코팅;을 실시하고, 110∼140℃ 정도의 Oven에서 건조;를 진행시킨 이후에, 표면을 무광 엠보롤(Emboss Roll)로 엠보싱(Embossing)을 실시함으로써, 표면에 독특한 무늬를 부여하는 친환경 합성피혁을 제조하였다.The coating was processed by the direct coating method using the fabric as the second coating liquid prepared as described above and using a comma coater. In this case, the second coating liquid is coated on the fabric at a coating amount of 600 g / m < 2 >, and the surface is dried in an oven at about 110 to 140 DEG C and then the surface is embossed with a emboss roll ), Thereby producing an environmentally friendly synthetic leather that gives a unique pattern to the surface.
여기에, 표면의 물성을 개선하기 위하여 특허(등록번호 10-1235568)에서 제공하는 오염물질에 의한 표면오염 제거용 코팅제로 제조된 폴리우레탄 표면 처리제를 35g/㎡ 내외 정도로 코팅하여, 표면의 물성을 개선함으로써 최종의 친환경 합성피혁을 제조하였다.Here, in order to improve the physical properties of the surface, a polyurethane surface treatment agent prepared by a coating agent for removing surface contaminants provided by a patent (Registration No. 10-1235568) was coated at about 35 g / m 2 or so, To produce the final eco-friendly synthetic leather.
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| KR102718020B1 (en) * | 2023-11-23 | 2024-10-16 | 주식회사 백산 | How to recycle polyurethane artificial leather |
| KR102774710B1 (en) * | 2023-12-22 | 2025-03-04 | 주식회사 백산 | Recycled polyurethane artificial leather |
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