KR101087949B1 - Method of manufacturing multi-layer sheets - Google Patents

Method of manufacturing multi-layer sheets Download PDF

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Publication number
KR101087949B1
KR101087949B1 KR1020100105725A KR20100105725A KR101087949B1 KR 101087949 B1 KR101087949 B1 KR 101087949B1 KR 1020100105725 A KR1020100105725 A KR 1020100105725A KR 20100105725 A KR20100105725 A KR 20100105725A KR 101087949 B1 KR101087949 B1 KR 101087949B1
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South Korea
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layer
hot melt
rubber
scrap
multilayer sheet
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KR1020100105725A
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Korean (ko)
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박희대
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박희대
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Priority to KR1020100105725A priority Critical patent/KR101087949B1/en
Priority to PCT/KR2010/008290 priority patent/WO2012057395A1/en
Priority to CN2010800481105A priority patent/CN103201103A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/40Layered products comprising a layer of synthetic resin comprising polyurethanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/06Interconnection of layers permitting easy separation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/20Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22Plastics; Metallised plastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/022 layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/033 layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/044 layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/24All layers being polymeric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/02Synthetic macromolecular particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2270/00Resin or rubber layer containing a blend of at least two different polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2272/00Resin or rubber layer comprising scrap, waste or recycling material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00Condition, form or state of the layers or laminate
    • B32B2305/30Fillers, e.g. particles, powders, beads, flakes, spheres, chips
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00Condition, form or state of the layers or laminate
    • B32B2305/70Scrap or recycled material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51Elastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/744Non-slip, anti-slip
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2437/00Clothing
    • B32B2437/02Gloves, shoes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/30Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/304Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being heat-activatable, i.e. not tacky at temperatures inferior to 30°C
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2415/00Presence of rubber derivatives
    • C09J2415/006Presence of rubber derivatives in the substrate

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE: A color multilayer sheet including rubber is provided to prevent a sheet from being wrinkled. CONSTITUTION: A hot melt layer is formed on the lower side of a color multilayered sheet including rubber. A TPU is formed on the upper side of the hot melt layer by mixing thermoplastic polyurethane and rubber. The thermoplastic polyurethane is an airbag scrap for shoes, hot melt scrap, or polyurethane scrap.

Description

고무가 함유된 컬러 다층 시트 및 그 제조방법{Method of Manufacturing Multi-Layer Sheets}Colored multi-layered sheet containing rubber and its manufacturing method {Method of Manufacturing Multi-Layer Sheets}

본 발명은 신발 갑피용으로 사용되는 컬러 다층 시트 및 그 제조방법에 관한 것으로서, 더욱 상세하게는 핫멜트층과 PU 스킨층을 접착시킬 때 접착 바인더용 용제로 사용되는 다이메틸폼아마이드(DMF)와 메틸에틸케톤(MEK) 등을 사용하지 않는 친환경적인 고무가 함유된 컬러 다층 시트 및 그 제조방법에 관한 것이다.
The present invention relates to a colored multilayer sheet used for shoe uppers and a method of manufacturing the same, and more particularly, to dimethylformamide (DMF) and methyl used as a solvent for an adhesive binder when bonding a hot melt layer and a PU skin layer. The present invention relates to a colored multilayer sheet containing an environmentally friendly rubber that does not use ethyl ketone (MEK) and the like and a method of manufacturing the same.

잘 알려진 바와 같이, 신발은 하부로부터 아웃솔, 미드솔, 인솔 및 갑피로 구성되고, 상기 아웃솔은 미끄럼 방지 기능을 하고, 미드솔은 충격흡수 기능을 하며, 인솔은 발의 편안함과 부수적인 충격흡수 기능을 한다. 또한 상기 갑피는 발 전체를 보호하고 신발이 발을 적당히 조여줄 수 있도록 한다.As is well known, the shoe consists of an outsole, a midsole, an insole and an upper from the bottom, the outsole is anti-slip, the midsole is shock absorbing, and the insole is foot comfort and ancillary shock absorbing. The upper also protects the entire foot and allows the shoe to tighten the foot properly.

이와 같은 아웃솔, 미드솔, 인솔 및 갑피는 다양한 소재로 만들어지는데, 구체적으로는 상기 아웃솔은 천연고무, 합성고무, EVA 및 수지 소재로 제조되고, 상기 미드솔과 인솔은 EVA, 폴리우레탄, 수지 등으로 제조되며, 상기 갑피는 피혁이나 섬유 등으로 제조된다.Such outsoles, midsoles, insoles and uppers are made of various materials. Specifically, the outsole is made of natural rubber, synthetic rubber, EVA and resin, and the midsole and insole are made of EVA, polyurethane, resin, or the like. The upper is made of leather, fiber, or the like.

한편, 상기와 같은 신발은 현대 생활의 필수품으로 자리매김하기 있으며, 최근에는 첨단화, 패션화되어 가는 경향이 점점 강해지고 있다. 과거에는 그 기능이 단순하고 특별한 기능성을 가지지 않는 단순한 제품이 주류를 이루었으나, 최근에는 착화감, 충격 완충, 경향성, 미려하고 감각적인 디자인 등의 기능이 혁신적으로 향상된 고부가 가치의 제품들이 주류를 이루고 있으며, 현대인의 생활수준이 향상됨에 따라 이에 대한 수요가 점점 많아지고 있다. 또한 신발이 패션의 한 가닥을 이루고 있어 다양한 디자인의 신발이 개발되고 새로운 개념들이 신발의 개발에 접목되고 있는 실정이다.On the other hand, such shoes are becoming a necessity of modern life, and in recent years, the trend of becoming advanced and fashion has become stronger. In the past, simple products with simple functions and no special functions have become mainstream, but recently, high value-added products with innovatively improved functions such as ignition, shock buffer, tendency, and beautiful and sensual design have become mainstream. As the standard of living of modern people improves, the demand for this increases. In addition, since shoes form a strand of fashion, various designs of shoes are being developed and new concepts are applied to the development of shoes.

이와 같이 다양한 디자인으로 신발을 제작하기 위하여, 최근에는 갑피를 다양한 소재로 제작함은 물론 갑피의 표면에 다양한 색상의 로그, 무늬, 글씨 등으로 만들어진 PU 스킨층을 핫멜트로 접착시켜 다양한 디자인을 구현하고 있다.In order to make shoes with various designs like this, recently, uppers are made of various materials, and PU skin layers made of logs, patterns, and letters of various colors are adhered to the upper surface with hot melt to realize various designs. have.

그 일 예로, 도 1과 같이 구성된 다층 시트를 이용하여 갑피를 제조하거나 또는 상기 시트를 다양한 모양으로 재단하여 갑피의 표면에 접착시키는 방법을 채택하고 있다.For example, an upper is manufactured by using the multilayer sheet configured as shown in FIG. 1, or a method of cutting the sheet into various shapes and bonding the upper surface to the upper is adopted.

상기 도 1을 참조하면, 공지된 기술의 다층 시트는 통상의 핫멜트층을 구성하고, 상기 핫멜트층의 저면에는 이형필름 또는 이형지가 부착되고, 상기 핫멜트층의 상면에는 PU 스킨층이 접착 바인더로 합포되어 있다. 이때 상기 접착 바인더에는 용제가 함유되어 있는데, 상기 용제는 다이메틸폼아마이드(dimethylformamide: 이하 "DMF"라 함)와 메틸에틸케톤(methylethylketone: 이하 "MEK"라 함) 등이 사용된다.Referring to FIG. 1, a multilayer sheet of a known technique constitutes a conventional hot melt layer, and a release film or a release paper is attached to a bottom of the hot melt layer, and a PU skin layer is laminated on an upper surface of the hot melt layer with an adhesive binder. It is. At this time, the adhesive binder contains a solvent, dimethylformamide (hereinafter referred to as "DMF") and methyl ethyl ketone (hereinafter referred to as "MEK") are used.

그러나, 위와 같은 DMF와 MEK 용제는 유해물질로 분류되어 있기 때문에 상기 용제를 피부, 눈, 점막을 자극하여 오랫동안 흡입하게 되면 간에 장애를 일으키게 되어 인체에 치명적일 뿐만 아니라 작업환경을 오염시키는 단점이 있었다.However, the above DMF and MEK solvents are classified as hazardous substances, so if the solvent is inhaled for a long time by stimulating the skin, eyes, and mucous membranes, they cause liver damage and contaminate the working environment.

특히, 상기 용제(DMF와 MEK)를 사용한 접착 바인더로 PU 스킨층과 핫멜트층을 합포하게 되면, 상기 합포 과정에서 용제의 휘발성이 떨어져(즉, 휘발이 늦어지게 되어) DMF와 MEK가 핫멜트층 또는 PU 스킨층에 침투하여 가스가 빠지지 않게되고 이로 인해 다층 시트에 기포가 생성되는 단점이 있었다. 뿐만 아니라 상기 용제가 늦게 휘발이 되더라도 다층 시트가 딱딱해져 플라스틱과 같은 뻣뻣한 느낌을 가지는 문제점이 있었다.
In particular, when the PU skin layer and the hot melt layer are combined with the adhesive binders using the solvents (DMF and MEK), the volatility of the solvent is reduced (ie, the volatilization is delayed) during the mixing process. The gas penetrates into the PU skin layer and prevents gas from escaping, which causes bubbles to form in the multilayer sheet. In addition, even when the solvent is volatilized late, there is a problem in that the multilayer sheet becomes hard and has a stiff feeling such as plastic.

본 발명은 위와 같은 문제점을 해결하기 위한 것으로, DMF와 MEK 등의 용제를 사용하지 않기 때문에 다층 시트에 기포가 생성되는 것을 방지하고, 또한 상기 다층 시트가 구겨지는 현상을 방지할 수 있는 고무가 함유된 컬러 다층 시트 및 그 제조방법을 제공하는데 그 목적이 있다.The present invention is to solve the above problems, and because it does not use a solvent such as DMF and MEK, it contains a rubber that can prevent bubbles from forming in the multilayer sheet, and also prevents the phenomenon that the multilayer sheet is wrinkled It is an object of the present invention to provide a colored multilayer sheet and a method of manufacturing the same.

또한, 본 발명의 다른 목적은 열가소성 폴리우레탄 다층 시트의 두께를 최소화할 수 있는 고무가 함유된 컬러 다층 시트 및 그 제조방법을 제공함에 있다.Another object of the present invention is to provide a colored multilayer sheet containing rubber and a method of manufacturing the same, which can minimize the thickness of the thermoplastic polyurethane multilayer sheet.

본 발명의 또 다른 목적은 다층 시트의 표면이 젖은 상태 또는 마른 상태에서 향상된 논-슬림(non-slip) 성질을 구현할 수 있는 고무가 함유된 컬러 다층 시트 및 그 제조방법을 제공함에 있다.
It is still another object of the present invention to provide a colored multilayer sheet containing rubber and a method for manufacturing the same, which can realize improved non-slip properties when the surface of the multilayer sheet is wet or dry.

본 발명은 최하층에는 폴리에틸렌계 수지로 제조된 PE 이형지를 구성하고, 상기 PE 이형지의 상면에는 통상의 핫멜트층을 구성하고, 상기 핫멜트층의 상면에는 열가소성 폴리우레탄과 고무를 배합하여 이루어진 TPU층이 구성됨을 특징으로 한다.The present invention comprises a PE release paper made of polyethylene-based resin at the lowermost layer, a normal hot melt layer is formed on the upper surface of the PE release paper, and a TPU layer is formed on the upper surface of the hot melt layer by mixing thermoplastic polyurethane and rubber. It is characterized by.

또한, 본 발명은 {에어백 스크랩, 폴리우레탄 스크랩, 핫멜트 스크랩} 중에서 선택된 하나의 스크랩 또는 하나 이상의 스크랩과 열가소성 폴리우레탄 및 니트릴-부타디엔 고무로 이루어진 배합물을 챔버에 투입하고, 또 다른 챔버에는 통상의 핫멜트와 폴리에틸렌계 수지를 각각 투입한 다음, 이를 공압출 방법으로 동시에 압출하여 3층 구조의 다층 시트를 제조하는 과정으로 이루어짐을 특징으로 한다.
In addition, the present invention is a mixture of one or more scraps selected from {airbag scrap, polyurethane scrap, hot melt scrap} and thermoplastic polyurethane and nitrile-butadiene rubber into the chamber, and another chamber is a conventional hot melt And polyethylene resin, respectively, and then extruded at the same time by co-extrusion, characterized in that the process consisting of a multi-layer sheet of a three-layer structure.

본 발명은 단색 또는 컬러 다층 시트를 제조할 때, 종래와 같이 다이메틸폼아마이드(DMF)와 메틸에틸케톤(MEK) 등을 사용하지 않기 때문에 친환경적으로서 작업환경을 깨끗한 상태로 유지할 뿐만 아니라 작업자의 인체에 피해를 주지 않는 장점이 있다.The present invention does not use dimethylformamide (DMF), methylethylketone (MEK), etc., when manufacturing a monochromatic or colored multilayer sheet, so that not only the working environment is kept clean, but also the human body of the operator. There is an advantage that does not harm.

또한, 본 발명은 다층 시트의 표면이 마른 상태 또는 젖은 상태에서 훌륭한 논-슬립(non-slip) 성질을 구현할 수 있고, 고무가 가지는 낮은 Tg로 인해 저온에서도 끈적거리는 그립감(tacky grip) 성질을 유지할 수 있는 효과가 있다. 뿐만 아니라 종래의 PU 스킨층으로 된 다층 시트보다 더 좋은 그립 느낌(grip feeling)과 마찰력(traction) 효과를 가지며, 특히 용제형 바인더를 사용하지 않으므로 인해 다층 시트에 기포가 생성되는 현상이나 시트가 구겨지는 현상을 방지할 수 있는 장점이 있다.In addition, the present invention can realize excellent non-slip properties when the surface of the multilayer sheet is dry or wet, and maintains a gripy grip property even at low temperatures due to the low Tg of the rubber. It can be effective. In addition, it has a better grip feeling and traction effect than conventional PU skin layer multilayer sheets, and in particular, bubbles are not generated in the multilayer sheet due to the absence of a solvent-based binder. There is an advantage that can prevent the phenomenon.

부가적으로, 본 발명은 별도의 PU 스킨과 접착 바인더 및 용제 등을 사용하지 않기 때문에 종래의 다층 시트보다 저렴한 가격에 제품을 판매할 수 있는 이점이 있다.
In addition, since the present invention does not use a separate PU skin, an adhesive binder, a solvent, and the like, there is an advantage that a product can be sold at a lower price than a conventional multilayer sheet.

도 1은 종래기술에 따른 다층 시트의 구성을 보여주고 있는 도면.
도 2는 본 발명의 바람직한 일 실시 예에 따른 고무가 함유된 컬러 다층 시트(PE 이형지, 핫멜트층, Eco Tack TPU층)의 구성을 보여주고 있는 도면.
도 3은 본 발명의 다른 실시 예에 따른 고무가 함유된 컬러 다층 시트(핫멜트층, Eco Tack TPU층)의 구성을 보여주고 있는 도면.
도 4는 본 발명의 또 다른 실시 예에 따른 고무가 함유된 컬러 다층 시트(핫멜트층, Eco Tack TPU층, PU 스킨층)의 구성을 보여주고 있는 도면.
1 is a view showing the configuration of a multilayer sheet according to the prior art.
2 is a view showing the configuration of a rubber-containing multi-layered multi-layer sheet (PE release paper, hot melt layer, Eco Tack TPU layer) according to an embodiment of the present invention.
3 is a view showing the configuration of a rubber-containing colored multi-layer sheet (hot melt layer, Eco Tack TPU layer) according to another embodiment of the present invention.
Figure 4 is a view showing the configuration of a rubber-containing colored multi-layer sheet (hot melt layer, Eco Tack TPU layer, PU skin layer) according to another embodiment of the present invention.

이하 본 발명의 바람직한 실시 예를 구체적으로 설명하면 다음과 같다. 후술 될 상세한 설명에서는 상술한 기술적 과제를 이루기 위해 본 발명에 있어 대표적인 실시 예들을 각각 제시할 것이다. 그리고 하기의 설명에서는 도 2 내지 도 4를 참조하여 본 발명의 구체적인 각 실시 예를 기술하기로 한다.Hereinafter, a preferred embodiment of the present invention will be described in detail. In the following description, representative embodiments of the present invention will be presented in order to achieve the above technical problem. In the following description, specific embodiments of the present invention will be described with reference to FIGS. 2 to 4.

본 발명에서는 신발 갑피용으로 사용된 단색 또는 컬러 다층 시트를 제조할 때, 접착 바인더(구체적으로는, DMF 또는 MEK 등과 같은 용제가 함유된 접착 바인더)를 사용하지 않음으로써 다층 시트에 기포가 생기는 현상을 방지하고 상기 시트가 구겨지는 현상을 방지할 수 있으며, 또한 그립감(grip feeling)을 향상시키고 마찰력(traction) 효과를 구현할 수 있도록 하는 고무가 함유된 컬러 다층 시트 및 그 제조방법을 구현하고자 한다.In the present invention, when producing a monochromatic or colored multilayer sheet used for shoe uppers, bubbles are formed in the multilayer sheet by not using an adhesive binder (specifically, an adhesive binder containing a solvent such as DMF or MEK). To prevent the wrinkles and to prevent the sheet from wrinkling, and to improve the grip (grip feeling) and to achieve a friction effect (traction) to implement a colored multilayer sheet containing a rubber and its manufacturing method.

한편, 본 발명에서는 상기한 바와 같은 특징을 가지는 컬러 다층 시트를 상품명 "Eco Tack V(제조 및 판매회사: 주식회사 삼부정밀화학)"라 명명(命名)하고, 상기 컬러 다층 시트를 이루는 복수의 층 중에서 열가소성 폴리우레탄층(즉, 핫멜트층의 표면에 접착되는 TPU층)을 'Eco Tack TPU층'으로 명명(命名) 한다. 따라서 하기의 상세한 설명에서는 다층 시트를 이루는 층 중에서 TPU층을 Eco Tack TPU층으로 표기할 것이다.On the other hand, in the present invention, the colored multilayer sheet having the above characteristics is named "Eco Tack V" (manufacturer and sales company: Sambu Fine Chemical Co., Ltd.), and among the plurality of layers forming the colored multilayer sheet, The thermoplastic polyurethane layer (that is, the TPU layer adhered to the surface of the hot melt layer) is referred to as an 'Eco Tack TPU layer'. Therefore, in the following detailed description, the TPU layer will be referred to as an Eco Tack TPU layer among the layers forming the multilayer sheet.

본 발명의 바람직한 실시 예에 따른 고무가 함유된 컬러 다층 시트(상품명: Eco Tack V)는 도 2 내지 도 4에 도시한 바와 같이 PE 이형지, 핫멜트층, Eco Tack TPU층으로 구성되고, 이들은 공압출 방법으로 3개의 층이 동시에 압출되어 형성되어진다.Rubber multi-layered sheet (trade name: Eco Tack V) according to a preferred embodiment of the present invention is composed of a PE release paper, a hot melt layer, Eco Tack TPU layer as shown in Figures 2 to 4, these are co-extruded In this way three layers are extruded simultaneously.

이때, 상기 Eco Tack TPU층은 열가소성 폴리우레탄과 고무를 배합한 것으로서, 바람직하게는 열가소성 폴리우레탄과 니트릴-부타디엔 고무(nitrile-butadiene rubber: 이하 "NBR"이라 함)를 알로이(alloy)한 고무가 함유된 TPU 마스터 배치(Rubberized TPU Master Batch)를 말한다. 여기서 상기 열가소성 폴리우레탄은 신발을 제조할 때 남은 스크랩(scrap)으로서, 예를 들면 에어백 스크랩, PU 스킨 스크랩, 핫멜트 스크랩을 재생하여 만든 것이다. 또한 본 발명에서는 상기 재생 TPU 대신에 버진(virgin) TPU를 사용할 수 있다.At this time, the Eco Tack TPU layer is a mixture of thermoplastic polyurethane and rubber, preferably a rubber alloyed with thermoplastic polyurethane and nitrile-butadiene rubber (hereinafter referred to as "NBR") Refers to the contained TPU Master Batch. Here, the thermoplastic polyurethane is a scrap left when manufacturing shoes, for example, made by regenerating an airbag scrap, a PU skin scrap, a hot melt scrap. In the present invention, a virgin TPU may be used instead of the regenerated TPU.

한편, 본 발명의 다층 시트에는 이형지가 부착되어 있는데, 구체적으로는 핫멜트층의 저면에 이형지가 부착되어 있으며, 본 발명에서는 상기 이형지로 통상적인 종이 이형지 또는 이형필름을 사용할 수 있고 특히 본 발명자가 개발한 폴리에틸렌계 이형필름 사용할 수 있다. On the other hand, the release sheet is attached to the multilayer sheet of the present invention, specifically, the release paper is attached to the bottom surface of the hot melt layer, in the present invention can use a conventional paper release paper or a release film as the release paper, in particular the inventor One polyethylene-based release film can be used.

상기 폴리에틸렌계 이형필름(이하 "PE 이형지"라 함)은 본 발명자가 2010. 10. 13.자로 대한민국 특허청에 특허출원한 출원번호 제10-2010-0099655호(발명의 명칭: 종이 이형지를 대체할 수 있는 폴리에틸렌계 이형필름의 조성물 및 상기 조성물로 이루어진 폴리에틸레계 이형필름)에 게재되어 있는 이형필름을 말한다.The polyethylene-based release film (hereinafter referred to as "PE release paper") is an application No. 10-2010-0099655 (the name of the invention: replace the paper release paper) filed by the inventors to the Korean Patent Office as of October 13, 2010 It refers to a release film published in a polyethylene release film composition and a polyethylene-based release film consisting of the composition).

상기 PE 이형지는 리사이클링된 폴리에틸렌계 수지(구체적으로는, 용융흐름성 지수가 0.01~0.5g, 190℃, 2.16kgf) 또는 버진(virgin) 형태의 폴리에틸렌계 수지로 구성된다. 또한 상기 PE 이형지는 핫멜트층과 접착되는 층은 고밀도 폴리에틸렌 수지로 구성되고 핫멜트 필름이 접착되지 않는 층은 저밀도 폴리에틸렌 수지로 구성됨이 바람직하다. 또 한편으로 상기 PE 이형지는 표면에 위치하는 적어도 한 개의 층은 용융흐름성 지수가 0.01~0.5g인 고밀도 폴리에틸렌 수지로 구성되고 내부에 위치하는 층은 용융흐름성 지수가 0.01~4.0g인 저밀도 폴리에틸렌 수지로 구성됨이 바람직하다.The PE release paper is composed of recycled polyethylene-based resin (specifically, the melt flow index is 0.01 ~ 0.5g, 190 ℃, 2.16kgf) or virgin-type polyethylene-based resin. In addition, the PE release paper is preferably a layer which is bonded to the hot melt layer is composed of a high density polyethylene resin, the layer is not bonded to the hot melt film is preferably composed of a low density polyethylene resin. On the other hand, the PE release paper at least one layer located on the surface is composed of a high density polyethylene resin having a melt flow index of 0.01 ~ 0.5g and the layer located inside is a low density polyethylene having a melt flow index of 0.01 ~ 4.0g It is preferable to consist of resin.

이상과 같이, 본 발명에서 구현하고자 하는 컬러 다층 시트는 1)열가소성 폴리우레탄과 고무(예를 들면, NBR)를 배합하여 Eco Tack TPU층을 형성하고, 2) 상기 Eco Tack TPU층과 핫멜트층 및 PE 이형지를 공압출 방법으로 한번에 3개의 층을 동시에 압출 성형하는 것이고, 3) 상기 PE 이형지는 특허출원번호 제10-2010-0099655호에서 제시하고 있는 폴리에틸렌계 이형필름을 사용하는 것이다.As described above, the colored multilayer sheet to be implemented in the present invention comprises 1) a thermoplastic polyurethane and a rubber (for example, NBR) to form an Eco Tack TPU layer, 2) the Eco Tack TPU layer and a hot melt layer, PE release paper is extruded at the same time three layers at a time by the coextrusion method, 3) the PE release paper is to use the polyethylene-based release film proposed in Patent Application No. 10-2010-0099655.

하기에서는, 상기한 바와 같은 Eco Tack TPU층을 이루는 마스터 배치의 조성물과 배합비를 표 1과 표 2에서 구체적으로 나타내었다.In the following, the composition and the mixing ratio of the master batch constituting the Eco Tack TPU layer as described above are specifically shown in Table 1 and Table 2.

Eco Tack TPU층을 이루는 마스터 배치의 조성물Composition of the master batch forming the Eco Tack TPU layer 배합비(중량%)Compounding ratio (% by weight) 에어백 스크랩(92A, Low MI)Airbag Scraps (92A, Low MI) 1010 PU 스킨과 핫멜트 스크랩PU skin and hot melt scrap 2020 버진(virgin) TPU(경도 65A, High MI)Virgin TPU (Hardness 65A, High MI) 29.629.6 버진(virgin) TPU(경도 85A, Low MI)Virgin TPU (Hardness 85 A, Low MI) 2020 니트릴-부타디엔 고무(NBR)Nitrile-Butadiene Rubber (NBR) 2020 흐름성 보조제(Flowing Agent: TL 906)Flowing Agent (TL 906) 0.20.2 산화방지제(Anti Oxident: Chinox 626)Antioxidant (Anti Oxident: Chinox 626) 0.20.2

Eco Tack TPU층을 이루는 마스터 배치의 조성물Composition of the master batch forming the Eco Tack TPU layer 배합비(중량%)Compounding ratio (% by weight) 버진(virgin) TPU(65A, High MI)Virgin TPU (65A, High MI) 49.649.6 버진(virgin) TPU(85A, Low MI)Virgin TPU (85A, Low MI) 3030 니트릴-부타디엔 고무(NBR)Nitrile-Butadiene Rubber (NBR) 2020 Flowing Agent(TL 906)Flowing Agent (TL 906) 0.20.2 산화방지제(Anti Oxident: Chinox 626)Antioxidant (Anti Oxident: Chinox 626) 0.20.2

이때, 상기 표 1과 표 2에서 제시하고 있는 'MI'는 TPU가 가지고 있는 점도 즉, 용융지수(melt flow index)를 하며, 상기 'high MI'는 상대적으로 점도가 낮은 것을 나타내고, 상기 'Low MI'는 점도가 높은 것을 말한다. 또한 상기 'TL 906'은 TPU 수지의 흐름성 보조 및 티-다이스 립(T-Dies Lip) 부분에 수지가 묻어나지 않게 하는 첨가제 이고, 상기 'Chinox 626'은 UV 안정제(Stabilizer)이다
In this case, 'MI' shown in Table 1 and Table 2 has a viscosity, that is, a melt flow index (melt flow index) of the TPU, and the 'high MI' indicates that the viscosity is relatively low, and the 'Low' MI 'means high viscosity. In addition, the 'TL 906' is an additive that prevents the resin from adhering to the flowability of the TPU resin and the T-Dies Lip, and the 'Chinox 626' is a UV stabilizer.

이하, 본 발명의 바람직한 실시 예에 의거 상세히 설명하겠는 바, 상기 본 발명이 실시 예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail based on the preferred embodiment of the present invention, but the present invention is not limited to the embodiment.

{실시예 1}{Example 1}

전술한 표 1에서 제시하고 있는 마스터 배치의 조성물을 챔버에 투입한 다음, 또 다른 챔버에는 핫멜트와 위에서 언급한 폴리에틸렌계 수지를 각각 투입한 후, 이들을 통상의 공압출 방법으로 동시에 압출하여 3층 구조의 컬러 다층 시트를 제조하였다.After putting the composition of the master batch shown in Table 1 above into a chamber, and then adding another hot melt and the above-mentioned polyethylene-based resin into each chamber, they were simultaneously extruded by a conventional co-extrusion method to form a three-layer structure. Colored multilayer sheets were prepared.

이와 같은 방법으로 제조된 본 발명의 컬러 다층 시트는 도 2에 도시한 바와 같이 3층 구조로 되어 있는데, 최하층에는 PE 이형지가 형성되고, 상기 PE 이형지의 상면에는 핫멜트층이 형성되고, 상기 핫멜트층의 상면에는 Eco Tack TPU층이 형성된다. 이때 상기 핫멜트층은 200㎛의 두께를 가지고, 상기 Eco Tack TPU층은 150~200㎛의 두께를 가진다.The multi-layered multilayer sheet of the present invention manufactured as described above has a three-layer structure as shown in FIG. 2, wherein a PE release paper is formed on a lowermost layer, a hot melt layer is formed on an upper surface of the PE release paper, and the hot melt layer is formed. On the upper surface of the Eco Tack TPU layer is formed. At this time, the hot melt layer has a thickness of 200㎛, Eco Tack TPU layer has a thickness of 150 ~ 200㎛.

여기서, 상기 표 1에서 제시하고 있는 마스터 배치 대신에 표 2에서 기술한 마스터 배치를 사용하게 되면 PE 이형지와 핫멜트층은 그대로 형성되지만, 상기 핫멜트층의 상면에는 버전(virgin) 형태의 Eco Tack TPU층이 형성된다.
Here, when the master batch described in Table 2 is used instead of the master batch shown in Table 1, the PE release paper and the hot melt layer are formed as it is, but the upper surface of the hot melt layer has a version of the Eco Tack TPU layer. Is formed.

{실시예 2}{Example 2}

표 1에서 제시하고 있는 마스터 배치의 조성물을 챔버에 투입한 다음, 또 다른 챔버에 핫멜트를 투입한 후, 이들을 통상의 공압출 방법으로 동시에 압출하여 2층 구조의 컬러 다층 시트를 제조하였다.The composition of the master batch shown in Table 1 was put into a chamber, and then hot melt was put into another chamber, and they were simultaneously extruded by the conventional coextrusion method, and the colored multilayer sheet of a two-layer structure was produced.

이와 같은 방법으로 제조된 본 발명의 컬러 다층 시트는 도 3에 도시한 바와 같이 통상의 핫멜트층을 구성하고, 상기 핫멜트층의 상면에는 Eco Tack TPU층이 형성된다. 이때 상기 핫멜트층과 Eco Tack TPU층은 위에서 언급한 바와 같이 200㎛의 두께와 150~200㎛의 두께로 각각 형성된다.The colored multilayer sheet of the present invention manufactured in this manner constitutes a conventional hot melt layer as shown in FIG. 3, and an Eco Tack TPU layer is formed on the top surface of the hot melt layer. In this case, the hot melt layer and the Eco Tack TPU layer are formed to have a thickness of 200 μm and a thickness of 150 μm to 200 μm, respectively, as mentioned above.

이때, 상기 표 1에서 제시하고 있는 마스터 배치 대신에 표 2에서 기술한 마스터 배치를 사용하게 되면 핫멜트층은 그대로 형성되지만, 상기 핫멜트층의 상면에는 버전(virgin) 형태의 Eco Tack TPU층이 형성된다.
In this case, when the master batch described in Table 2 is used instead of the master batch shown in Table 1, the hot melt layer is formed as it is, but a version of the Eco Tack TPU layer is formed on the upper surface of the hot melt layer. .

{실시예 3}{Example 3}

상기 표 1에서 제시하고 있는 마스터 배치의 조성물을 챔버에 투입한 다음, 또 다른 챔버에는 통상의 핫멜트와 폴리우레탄을 각각 투입한 후, 이들을 통상의 공압출 방법으로 동시에 압출하여 3층 구조의 컬러 다층 시트를 제조하였다.After putting the composition of the master batch shown in Table 1 to the chamber, and then into the other chamber, the usual hot melt and polyurethane, respectively, and then extruded them by the conventional co-extrusion method at the same time to the three-layered color multilayer Sheets were prepared.

이와 같은 방법으로 제조된 본 발명의 컬러 다층 시트는 도 4에 도시한 바와 같이 3층 구조로 되어 있는데, 제일 아래층에는 핫멜트층이 형성되고, 상기 핫멜트층의 상면에는 Eco Tack TPU층이 형성되며, 상기 Eco Tack TPU층의 상면에는 PU 스킨층이 형성된다.The colored multilayer sheet of the present invention manufactured in such a manner has a three-layer structure as shown in FIG. 4, the bottom layer of which is formed with a hot melt layer, an upper surface of the hot melt layer is formed with an Eco Tack TPU layer, A PU skin layer is formed on the top surface of the Eco Tack TPU layer.

여기서, 상기 표 1에서 제시하고 있는 마스터 배치 대신에 표 2에서 기술한 마스터 배치를 사용하게 되면 핫멜트층과 PU 스킨층은 그대로 형성되지만, 상기 핫멜트층의 상면에는 버전(virgin) 형태의 Eco Tack TPU층이 형성된다.Here, when the master batch described in Table 2 is used instead of the master batch shown in Table 1, the hot melt layer and the PU skin layer are formed as they are, but the upper surface of the hot melt layer has a version of the Eco Tack TPU. A layer is formed.

Claims (11)

삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 저면에는 핫멜트층을 구성하고, 상기 핫멜트층의 상면에는 열가소성 폴리우레탄과 고무를 배합하여 이루어진 TPU층이 구성된 고무가 함유된 컬러 다층 시트에 있어서,
상기 열가소성 폴레우레탄은 신발 제조시에 사용되었던 신발용 에어백 스크랩 또는 핫멜트 스크랩 또는 폴리우레탄 스크랩 중에서 어느 하나임을 특징으로 하는 고무가 함유된 컬러 다층 시트.
In the multi-layered sheet containing a rubber composed of a TPU layer composed of a thermoplastic polyurethane and rubber on the top surface of the hot melt layer, the upper surface of the hot melt layer,
The thermoplastic polyurethane is a colored multilayer sheet containing rubber, characterized in that any one of a shoe airbag scrap or hot melt scrap or polyurethane scrap used in the manufacture of shoes.
삭제delete 삭제delete 삭제delete 컬러 다층 시트의 제조방법에 있어서,
{에어백 스크랩, 폴리우레탄 스크랩, 핫멜트 스크랩} 중에서 선택된 하나의 스크랩 또는 하나 이상의 스크랩과 고무로 이루어진 배합물을 챔버에 투입하고, 또 다른 챔버에는 핫멜트를 투입한 다음, 이를 공압출 방법으로 동시에 압출하여 다층 시트를 제조하는 과정으로 이루어짐을 특징으로 하는 고무가 함유된 컬러 다층 시트의 제조방법.
In the manufacturing method of a colored multilayer sheet,
One scrap selected from {airbag scrap, polyurethane scrap, hot melt scrap} or a combination of one or more scraps and rubber is added to a chamber, and another chamber is charged with hot melt, and then extruded simultaneously by co-extrusion, and then multilayered. A method for producing a colored multilayer sheet containing rubber, characterized in that the process of producing a sheet.
제10항에 있어서,
상기 고무는 니트릴-부타디엔 고무임을 특징으로 하는 고무가 함유된 컬러 다층 시트의 제조방법.
The method of claim 10,
The rubber is a nitrile-butadiene rubber, characterized in that the manufacturing method of the colored multilayer sheet containing the rubber.
KR1020100105725A 2010-10-28 2010-10-28 Method of manufacturing multi-layer sheets KR101087949B1 (en)

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