KR100519098B1 - Manufacturing Method and Structure of Outsole and Heel Material for Shoe - Google Patents

Manufacturing Method and Structure of Outsole and Heel Material for Shoe Download PDF

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KR100519098B1
KR100519098B1 KR10-2002-0062796A KR20020062796A KR100519098B1 KR 100519098 B1 KR100519098 B1 KR 100519098B1 KR 20020062796 A KR20020062796 A KR 20020062796A KR 100519098 B1 KR100519098 B1 KR 100519098B1
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weight
foaming
shoe
heel
manufacturing
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KR10-2002-0062796A
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KR20020084045A (en
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김권형
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김권형
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/14—Multilayered parts
    • B29D35/142—Soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • A43B13/122—Soles with several layers of different materials characterised by the outsole or external layer
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B21/00—Heels; Top-pieces or top-lifts
    • A43B21/02—Heels; Top-pieces or top-lifts characterised by the material
    • A43B21/20—Heels; Top-pieces or top-lifts characterised by the material plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/14—Multilayered parts
    • B29D35/144—Heels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

본 발명은 신발 창 및 굽 소재의 제조방법과 이를 이용하여 제조하는 신발 창 및 굽 소재의 구조에 관한 것으로서, 구체적으로, 고발포성 수지와 저발포성 수지를 여러 번 교호 적층 제조하여 신발 창 및 굽에 선명한 적층구조를 형성하고 2종의 층 구조중 고발포성 수지층의 단면에는 광택이 형성되도록 함으로써, 신발 창 및 굽의 외관을 미려하게 해 줄 뿐만 아니라, 신발 착용시의 쿠션감도 향상시킬 수 있는 신발 창 및 굽 소재의 제조방법과 이를 이용하여 제조하는 신발 창 및 굽 소재의 구조에 관한 것이다.The present invention relates to a method for manufacturing a shoe sole and a heeled material and a structure of a shoe sole and a heeled material manufactured by using the same, and specifically, a high-foaming resin and a low-foaming resin are manufactured by alternately stacking a plurality of times to a shoe window and a heel. By forming a clear laminated structure and having a gloss formed on the cross-section of the highly foamable resin layer of the two layer structures, the shoe window and the heel not only look beautiful but also improve the cushioning feeling when wearing shoes The present invention relates to a method of manufacturing a window and a heel material, and a structure of a shoe window and a heel material manufactured using the same.

Description

신발 창 및 굽 소재의 제조방법 및 구조 {Manufacturing Method and Structure of Outsole and Heel Material for Shoe} Manufacturing Method and Structure of Shoe Sole and Heel Material {Manufacturing Method and Structure of Outsole and Heel Material for Shoe}

본 발명은 신발 창 및 굽 소재의 제조방법과 이를 이용하여 제조하는 신발 창 및 굽 소재의 구조에 관한 것으로서, 구체적으로는, 고발포성 수지와 저발포성 수지를 여러번 교호 적층함으로써 신발 창 및 굽의 외관을 미려하게 해 줄 뿐만 아니라 신발 착용시의 쿠션감도 향상시킬 수 있는, 신발 창 및 굽 소재의 제조방법과 이를 이용하여 제조하는 신발 창 및 굽 소재의 구조에 관한 것이다.The present invention relates to a method for manufacturing a shoe sole and a heel material and a structure of a shoe sole and a heel material manufactured by using the same. Specifically, the appearance of the shoe sole and the heel by alternately laminating a high-foaming resin and a low-foaming resin several times. The present invention relates to a manufacturing method of a shoe sole and a heel material and a structure of a shoe sole and a heel material manufactured by using the same, which can enhance the feeling of cushioning when wearing shoes as well as make it beautiful.

신발 창 또는 굽의 일반적인 기능은 지면의 굴곡이 발바닥에 직접 전달되지 않도록 함으로써 보행시 편의성을 높이고, 외피 부분에 비해 빨리 마모되는 밑창 또는 굽 부분의 마모성을 흡수함으로써 신발 전체를 교환하는 대신 창 또는 굽만을 교환할 수 있게 함으로써 신발의 수명을 연장하기 위한 역할을 하는 것으로서, 근래에는 이러한 창과 굽의 구분이 따로 없는 통굽도 많이 사용되고 있다.The general function of shoe soles or heels is to improve the comfort of walking by not allowing the curvature of the ground to be transmitted directly to the soles, and to absorb the wear of soles or heel parts that wear out faster than the skin, thereby replacing the entire shoe or sole. It is possible to replace the bay to extend the life of the shoe as a role, in recent years such a window and heel is not used a lot of heels are used separately.

최근에는, 이와 같은 기본 기능 이외에, 창 또는 굽의 높이를 비정상적으로 높임으로써 키가 커 보이게 한다거나 탄성소재를 이용하여 창 또는 굽을 제조함으로써 쿠션기능을 부가하는 등 기능성이 부가된 소재 또는 이를 이용하여 제조한 창이나 굽 제품들이 많이 선보이고 있다.Recently, in addition to such basic functions, the material is added using a functional material such as making the height of the window or the heel look abnormally high, or adding a cushion function by manufacturing the window or the heel using an elastic material. There are a lot of window and grilled products.

또한, 이와 같은 기능적인 면 이외에, 외관의 미려함까지 고려하여 신발 창 또는 굽을 제조하고자 하는 시도들도 종종 볼 수 있는데, 예를 들어, 대한민국 실용신안등록 제190503호에는, 신발의 귓굽에 착탈식으로 악세서리를 적용할 수 있도록 고안함으로써 신발의 외관을 개선하고자 한 시도가 개시된 바도 있다.In addition, in addition to such a functional aspect, there are often attempts to manufacture a shoe window or a heel considering the beauty of the appearance, for example, Korean Utility Model Registration No. 190503, a detachable accessory to the shoe heel Attempts have been made to improve the appearance of the shoe by devising to apply it.

이와 같이 신발 창 또는 굽의 외관을 미려하게 하고자 하는 시도중 가장 대표적이고 기본적인 예는 창 또는 굽 소재에 적층무늬의 효과가 나타나게 하는 것으로서, 주로, 도 1에 나타낸 바와 같이, 일반적으로 사용되는 창 또는 굽 소재의 외면에 적층 무늬가 있는 피혁 원단을 접착제로 부착하는 방법이 사용되어 왔으며, 이를 위해서는 두께가 균일한 다수매의 피혁판을 적층하고 고압으로 압착한 후 수직으로 얇게 절단하여 접착하는 기술을 필요로 하였다.As such, the most representative and basic example of an attempt to make the appearance of the shoe window or the heel beautiful is to make the effect of the lamination pattern on the window or the heel material, mainly, as shown in FIG. A method of attaching a leather pattern having a lamination pattern to an outer surface of a heel material with an adhesive has been used.To do this, a plurality of leather plates having a uniform thickness are laminated, pressed at high pressure, and then thinly cut vertically and bonded. It was necessary.

그러나, 이와 같이 얇게 절단된 적층 원단을 창이나 굽의 외면에 부착함으로써 적층무늬 효과를 얻고자 하는 방법은 여러 가지 기능적인 한계를 가지고 있었는데, 이렇게 무늬를 가지는 원단을 단순히 부착하여 사용하는 경우, 장시간 사용시 부착된 피혁 원단이 쉽게 분리되어 오히려 창 또는 굽의 수명을 단축시키는 단점이 있었고, 피혁포의 가격이 비싸고 그 적층, 가공 및 제조 공정이 복잡하여 제조 원가가 높다는 단점도 가지고 있었다.However, the method of obtaining the laminated pattern effect by attaching the thinly cut laminated fabric to the outer surface of the window or the heel has various functional limitations. In use, the attached leather fabric was easily separated and shortened the lifespan of the window or the heel. Also, the leather fabric was expensive and the lamination, processing and manufacturing processes were complicated, resulting in high manufacturing costs.

또한, 이와 유사한 것으로서, 대한민국 실용신안등록 제 1980-2321에 나타난 바와 같이, 여러 겹의 피혁을 적층 접착하여 창 및 굽 소재를 제조하고 이를 이용하여 뒷굽을 통째로 성형 가공하는 방법이 제시된 바도 있는데, 이 방법의 경우에도 피혁 접착부분의 접착력이 부족하여 사용중 부러질 수 있는 단점이 있었고, 적층 피혁 제조시 고압을 필요로 함으로써 역시 공정이 복잡하고 제조 원가가 높은 등의 단점을 가지고 있었다.In addition, as similar, as shown in the Republic of Korea Utility Model Registration No. 1980-2321, a method of manufacturing a window and a heel material by laminating and bonding several layers of leather, and using the same to form a whole heel process has been proposed, Even in the case of the method, there was a disadvantage in that the adhesive strength of the leather adhesive part could be broken during use, and it required a high pressure when manufacturing laminated leather, which also had the disadvantages of complicated process and high manufacturing cost.

한편, 대한민국 실용신안등록 제1996-4413호에 보면, 상기와 같이 제조공정이 복잡하고 제조 원가가 높은 피혁을 사용하는 대신 재료의 가격이 싸고 제조공정이 더 간단하며 제조후 층간 접착력이 적층 피혁에 비해 훨씬 저렴한 천연 또는 합성의 수지를 사용 적층구조를 형성하여 창 및 굽 소재로 사용하고자 한 예가 시도된 바 있는데, 여기에서는 무발포 및 발포 수지를 반복 적층시켜 신발 뒷굽을 구성함으로써 각 소재의 질감 차이에서 오는 외관의 차이가 적층 형태로 표현될 수 있도록 하는 방법을 사용하였다.On the other hand, according to the Republic of Korea Utility Model Registration No. 1996-4413, instead of using a leather with a complicated manufacturing process and high manufacturing cost as described above, the cost of the material is simpler, the manufacturing process is simpler, and the interlayer adhesion strength after the manufacturing is applied to the laminated leather. An attempt was made to form a laminated structure using much cheaper natural or synthetic resins and to use it as window and heel material. Here, the difference in the texture of each material is achieved by repeatedly laminating non-foamed and foamed resin to form a shoe heel. We used a method that allows the difference in appearance to be expressed in a stacked form.

그러나, 이와 같은 발포 수지층과 무발포 수지층의 단순한 반복 적용의 경우, 조직의 치밀도 차이에서 오는 질감의 차이에 의한 층간 구분만이 가능함으로써 적층 무늬가 선명하게 구분되어 나타나지 않고, 이와 같이 단순하고 불분명한 층간 질감 차이 이외에는 창 및 굽의 외관을 미려하게 할 수 있는 다른 적극적인 기능이 없다는 단점을 가지고 있다.However, in the case of such repeated application of the foamed resin layer and the non-foamed resin layer, it is possible to distinguish only the layers due to the difference in texture resulting from the difference in the density of the tissue, so that the laminated pattern is not clearly distinguished. It has the disadvantage that there is no other active function that can beautify the appearance of the window and the heel except for the difference between the unclear and the interlayer texture.

또한, 상기한 바와 같은 종래의 방법들 모두가 공통적으로 가지는 또 다른 단점으로서, 미려한 외관 이외에 다른 기능적인 요소를 고려하고 있지 못하다는 것을 들 수 있는데, 예를 들어, 신발에 쿠션 기능을 부여함으로써 착용시 편의성을 높여줄 수 있으면서도 적층 구조의 미려한 외관을 가지는 신발 창 및 굽의 제조방법과 이를 이용하여 제조한 신발 창 및 굽 소재의 구조 등은 제시된 바가 없다.In addition, another disadvantage that all of the conventional methods as described above have in common is that it does not consider other functional elements other than a beautiful appearance, for example, it is worn by imparting cushioning function to a shoe. The manufacturing method of the shoe window and the heel and the structure of the shoe window and the heel material manufactured by using the same have a beautiful appearance of the laminated structure while improving the convenience of the case.

본 발명은 이와 같은 종래기술의 단점을 극복하기 위한 것으로서, 그 목적은, 외관에 선명하고 미려한 적층 구조가 나타날 뿐만 아니라, 내구성과 함께 쿠션기능을 가지고 있음으로써 착용시 편의성까지 향상되고, 합성 수지 발포성 재료를 사용함으로써 제조 원가를 감소시킨 신발 창 및 굽 소재의 제조방법과 이를 이용하여 제조하는 신발 창 및 굽 소재의 구조를 제공하고자 하는 것이다.The present invention is to overcome the disadvantages of the prior art, the object of the present invention is not only the appearance of a clear and beautiful laminated structure in appearance, but also has a cushion function with durability to improve the comfort when wearing, synthetic resin foamability The purpose of the present invention is to provide a method of manufacturing shoe soles and heeled materials having reduced manufacturing costs by using materials, and a structure of shoe soles and heeled materials manufactured using the same.

이를 위한 본 발명은, 단위부피당 원료의 가격이 피혁 또는 무발포성 수지에 비해 훨씬 저렴한 저발포성 합성 수지 및 고발포성 합성 수지를 여러번 교호 적층함으로써 선명한 적층구조를 형성할 뿐만 아니라, 적층 구조를 광택/무광택의 교호 구조로 형성시킨 신발 창 및 굽 소재의 제조방법과 이를 이용하여 제조하는 신발 창 및 굽 소재의 구조를 제공하는 것으로 이루어진다. To this end, the present invention is not only to form a clear laminated structure by alternately laminating a low-foaming synthetic resin and a high-foaming synthetic resin many times cheaper than the leather or non-foaming resin, the price of raw materials per unit volume, as well as to make the laminated structure glossy / matt It provides a method of manufacturing a shoe window and a heeled material formed of an alternating structure of the shoe and a shoe sole and a heeled material manufactured by using the same.

본 발명은 고발포성 수지 및 저발포성 수지를 여러 번 교호 적층 제조하여 신발 창 및 굽 소재에 선명한 적층구조를 형성하고 2종의 층 구조중 고발포성 수지층의 단면에는 미려한 광택이 형성되도록 함으로써, 신발 창 및 굽의 외관을 미려하게 해 줄 뿐만 아니라 신발 착용시의 쿠션감도 향상시킬 수 있는, 신발 창 및 굽 소재의 제조방법과 이를 이용하여 제조하는 신발 창 및 굽 소재의 구조에 관한 것이다.The present invention by manufacturing a high-lamination foam and a low-foaming resin alternately laminated several times to form a clear laminated structure on the shoe window and the heeled material and to form a beautiful gloss on the cross-section of the high-foaming resin layer of the two layer structure, The present invention relates to a manufacturing method of a shoe window and a heel material and a structure of a shoe window and a heel material manufactured using the same, which not only enhances the appearance of the window and the heel, but also improves the feeling of cushioning when the shoe is worn.

본 발명자들은 종래 기술에 따라 제조되는 적층 구조 신발 창 및 굽의 구조가 선명하지 않고 내구성이 떨어지며 외관상의 미려함이 부족한 점을 극복하기 위하여 연구를 수행하던 중, 종래의 무발포/발포 교호구조를 가지는 적층구조 대신 저발포/고발포 교호구조를 가지는 적층구조를 적용하면 오히려 더 선명한 적층구조를 얻을 수 있으며, 고발포층의 경우 발포성 수지 제조 원료의 종류 및 발포도를 적절히 조절하게 되면 광택효과를 얻을 수 있음을 발견하고 본 발명을 완성할 수 있었다.The inventors of the present invention have a conventional non-foamed / foamed alternating structure, while conducting research to overcome the lack of clear appearance, durability and lack of appearance beauty of the laminated shoe sole and heel structure manufactured according to the prior art If a laminated structure having a low foaming / high foaming alternating structure is used instead of the laminated structure, a more clear lamination structure can be obtained. In the case of the high foaming layer, if the type and foaming degree of foaming resin manufacturing material are properly adjusted, a gloss effect can be obtained. It was found that the present invention was completed.

이하, 첨부된 도면을 참고로 하여 본 발명을 더 구체적으로 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 2에 나타낸 바와 같이, 본 발명에 따른 신발 창 및 굽 소재는 저발포층(L)과 고발포층(H)의 교호 적층 구조로 이루어진다.As shown in FIG. 2, the shoe sole and the heel material according to the present invention have an alternating laminated structure of a low foaming layer (L) and a high foaming layer (H).

상기 저발포층(L)은 에틸렌 비닐 아세테이트(EVA: Ethylene Vinyl Acetate, VA 12-22중량%), 저밀도 폴리에틸렌(LDPE: Low Density Polyethylene, Melt Index 0.1-5.0), 탄산칼슘(CaCO3), 카본블랙(Carbon Black), 가공조제로서의 스테아르산(Stearic Acid), 가교제(DCP: Decumil Peroxide 98중량%) 및 발포제(또는 발포핵제)로서의 아조디카보네이트(Azodicarbonate)를 원료로 하여 제조된다.The low foaming layer (L) is ethylene vinyl acetate (EVA: Ethylene Vinyl Acetate, VA 12-22% by weight), low density polyethylene (LDPE: Low Density Polyethylene, Melt Index 0.1-5.0), calcium carbonate (CaCO 3 ), carbon Black (Carbon Black), stearic acid (Stearic Acid) as a processing aid, a crosslinking agent (DCP: Decumil Peroxide 98% by weight) and azodicarbonate (Azodicarbonate) as a blowing agent (or foaming nucleating agent) as a raw material.

저발포층(L)에서, 전체 원료의 합을 100중량%로 하였을 때, 상기 원료중 EVA는 1-96.8중량%, LDPE는 1-96.8중량%, 탄산칼슘(CaCO3)은 1-96.8중량%, 카본블랙은 1-50중량%, 가공조제로서의 스테아르산은 0.1-4.0중량%, 가교제는 0.1-4.0중량%, 발포제는 1-20중량%의 양으로 사용된다.In the low foaming layer (L), when the sum of all the raw materials is 100% by weight, 1-96.8% by weight of EVA, 1-96.8% by weight of LDPE, and 1-96.8% by weight of calcium carbonate (CaCO 3 ) %, Carbon black is used in an amount of 1-50% by weight, 0.1-4.0% by weight stearic acid as a processing aid, 0.1-4.0% by weight crosslinking agent, and 1-20% by weight foaming agent.

이밖에, 본 발명에서는 관행적으로 사용되는 발포조제를 1-15중량%의 양으로 저발포층(L)에 사용할 수 있다.In addition, in the present invention, the foaming aids conventionally used may be used in the low foaming layer (L) in an amount of 1-15% by weight.

상기 고발포층(H)은 에틸렌 비닐 아세테이트(EVA: Ethylene Vinyl Acetate, VA 12-22중량%), 저밀도 폴리에틸렌(LDPE: Low Density Polyethylene, Melt Index 0.1-5.0), 탄산칼슘(CaCO3), 카본블랙(Carbon Black), 가공조제로서의 스테아르산(Stearic Acid) 및 가교제(DCP: Decumil Peroxide 98중량%)를 원료로 하여 제조된다.The high foaming layer (H) is ethylene vinyl acetate (EVA: Ethylene Vinyl Acetate, VA 12-22% by weight), low density polyethylene (LDPE: Low Density Polyethylene, Melt Index 0.1-5.0), calcium carbonate (CaCO 3 ), carbon black (Carbon Black), stearic acid (Stearic Acid) and crosslinking agent (DCP: Decumil Peroxide 98% by weight) as a processing aid as a raw material.

고발포층(H)에서, 전체 원료의 합을 100중량%로 하였을 때, 상기 원료중 EVA는 1-97.8중량%, LDPE는 1-97.8중량%, 탄산칼슘은 1-97.8중량%, 카본블랙은 1-50중량%, 가공조제로서의 스테아르산은 0.1-2.0중량%, 가교제(DCP 98중량%)는 0.1-2.0중량%의 양으로 사용된다.In the high foaming layer (H), when the sum of all the raw materials is 100% by weight, in the raw materials, EVA is 1-97.8% by weight, LDPE is 1-97.8% by weight, calcium carbonate is 1-97.8% by weight, and carbon black is 1-50% by weight, stearic acid as a processing aid is used in an amount of 0.1-2.0% by weight, and a crosslinking agent (98% by weight of DCP) in an amount of 0.1-2.0% by weight.

본 발명의 고발포층(H)에서는, 저발포층(L)에서 발포제로 사용된 아조디카보네이트는 사용되지 않는데, 필요할 경우 1-15중량%의 양으로 사용될 수도 있다.In the high foaming layer (H) of the present invention, azodicarbonate used as a blowing agent in the low foaming layer (L) is not used, but may be used in an amount of 1-15% by weight if necessary.

이밖에, 본 발명에서는 관행적으로 사용되는 발포조제를 1-15중량%의 양으로 고발포층(H)에 사용할 수 있다.In addition, in the present invention, the foaming aids conventionally used may be used in the high foaming layer (H) in an amount of 1-15% by weight.

이와 같은 원료 및 조성을 바탕으로 한 본 발명 신발 창 및 굽 소재의 고발포층(H) 및 저발포층(L) 제조방법은 도 3에 나타낸 바와 같이 배합단계, 롤믹싱(Roll Mixing)단계, 시팅(sheeting)단계, 발포 및 적층압착단계, 냉각단계의 5단계로 구성되는데, 그 구체적인 내용은 하기와 같다.The high foaming layer (H) and the low foaming layer (L) manufacturing method of the shoe sole and the heeled material of the present invention based on the raw materials and the composition is as shown in Figure 3 blending step, roll mixing (Roll Mixing) step, sheeting ( It consists of five steps of the sheeting) step, foaming and lamination compression step, cooling step, the details are as follows.

먼저, 배합단계로서, 상기 조성에 따라 계근된 원료중 EVA, LDPE, 탄산칼슘, 카본블랙 및 스테아르산을 50-120℃로 조정된 배합기에 넣고 가압 램(RAM)을 4-6kgf/cm2로 가압하여 5분간 믹싱한 후(믹싱 스크류 RPM: 전 30-35, 후 35-40), 여기에 발포제 및 발포조제를 투입하여 5분간 믹싱하고, 여기에 다시 가교제를 투입하여 10분간 믹싱한다.First, as a blending step, EVA, LDPE, calcium carbonate, carbon black and stearic acid were added to a blender adjusted to 50-120 ° C. among the raw materials weighed according to the composition, and the pressurized RAM was 4-6 kgf / cm 2 . After pressing for 5 minutes of mixing (mixing screw RPM: 30-35 before, 35-40 after), a foaming agent and a foaming aid are added thereto, mixed for 5 minutes, and a crosslinking agent is added thereto for 10 minutes to mix.

다음에, 롤믹싱단계로서, 상기와 같이 배합된 후 이송된 배합물을 간격 10mm의 롤(Roll)에서 80-100℃의 온도로 10분 동안 믹싱한다. (RPM: 전 13-15, 후 11-13)Next, as a roll mixing step, the blended material conveyed after the compounding as described above is mixed for 10 minutes at a temperature of 80-100 ° C. on a roll of 10 mm intervals. (RPM: 13-15 before, 11-13 after)

다음에, 시팅단계로서, 상기와 같이 롤 믹싱된 배합물을 절단기(cutter)에서 저발포층(L)용은 0.2-2.0mm의 두께로, 고발포층(H)용은 0.1-2.0mm의 두께로 절단(cutting)하여 원판(sheet)을 제조한다.Next, as a sheeting step, the roll-mixed compound as described above in the cutter (cutter) to a thickness of 0.2-2.0mm for the low-foaming layer (L), 0.1-2.0mm for the high-foaming layer (H) Cutting is made of a sheet.

다음에, 발포 및 적층압착단계로서, 상기와 같이 제조된 각 층의 원판(Sheet)을 몰드 체적의 101-105부피%에 해당하는 양만큼 계량한 후, 원하는 적층 횟수에 해당하는 수로 교호 적층하여, 가압프레스(발포기)에서 130-180℃의 온도를 유지하면서 50-250kgf/cm2의 유압으로 10-50분 동안 가열가압함으로써 발포 및 적층압착시킨다.Next, as the foaming and lamination compression step, the sheet of each layer manufactured as described above was weighed by an amount corresponding to 101-105% by volume of the mold volume, and then alternately laminated by a number corresponding to the desired number of laminations. In a pressurized press (foaming machine) while maintaining a temperature of 130-180 ℃ by heating and pressurized for 10-50 minutes at a hydraulic pressure of 50-250kgf / cm 2 by foaming and laminated compression.

다음에, 냉각단계로서, 상기와 같이 발포된 원단을 15℃ 이하의 온도에서 10-60분 동안 냉각시켜 본 발명의 교호적층 창 및 굽 소재를 완성한다.Next, as a cooling step, the foamed fabric as described above is cooled for 10-60 minutes at a temperature of 15 ° C. or less to complete the alternating laminated window and the heel material of the present invention.

이와 같은 조성 및 방법에 의하여 제조되는 본 발명의 신발 창 및 굽 소재는, 저발포층이 0.20-0.25g/cm3의 밀도를, 고발포층이 0.07-0.12g/cm3의 밀도를 가지게 된다.The shoe heel window and material of the present invention is prepared by the same composition and method, the density of the foam layer that is 0.20-0.25g / cm 3, will have the density of the fabric layer is charged 0.07-0.12g / cm 3.

이상과 같이 완료되는 본 발명의 창 및 굽 소재 제조방법중 고발포층 제조공정은 발포제를 사용하지 않고도 고발포성을 얻을 수 있는 특이한 제조공정으로서, 고발포층(H)가 이루어지면서도 발포제(발포핵제)가 사용되지 않아 단위당 제조 가격이 저렴하기 때문에 두꺼운 통굽용으로 적용하여도 경제성이 있다는 장점을 가지게 된다.The high foaming layer manufacturing process of the window and the heel material manufacturing method of the present invention completed as described above is a unique manufacturing process to obtain a high foaming without using a foaming agent, while the high foaming layer (H) is made of a foaming agent (foaming agent) Since the manufacturing price per unit is not used because it is not used, it has the advantage that it is economical even if it is applied for thick corn.

또한, 이렇게 완성된 원단 적층구조중 저발포층(L)은 비교적 큰 크기의 기공을 형성함으로써 성형하여 창 및 굽으로 사용시 그 절단면이 빛을 굴절시켜 반짝이게 하는 광택효과를 가지게 된다.In addition, the low-foaming layer (L) of the finished fabric laminated structure is formed by forming pores of a relatively large size has a gloss effect that the cutting surface is refracted by the refraction of light when used as a window and heel.

또한, 이와 같이 완성된 본 발명의 신발 창 및 굽 소재는 양 층이 모두 발포성으로 구성됨으로써 발포/무발포 교호적층 원단에 비해 훨씬 가볍고, 밀도가 낮아 신발에 쿠션감을 줄 수 있고, 가공성이 우수하며, 운송시 취급이 용이하고, 더 적은 양의 원료를 필요로 함으로써 자재비가 절감되면서도 더 미려한 외감을 가지는 장점이 있게 되는 것이다.In addition, the shoe sole and the heel material of the present invention thus completed is much lighter than both foamed and non-foamed lamination fabrics because both layers are made of foam, and can give a cushion feeling to the shoe due to its low density, and excellent workability. It is easy to handle during transportation, and by using less raw materials, the material cost is reduced, but it has the advantage of having a more beautiful outer appearance.

이하, 하기 표 1의 조성에 따라 실시예를 제조함으로써 본 발명을 더 구체적으로 설명하고자 하나, 본 발명을 이에 제한하고자 하는 것은 아니다.Hereinafter, the present invention will be described in more detail by preparing examples according to the composition of Table 1 below, but the present invention is not intended to be limited thereto.

실시예의 조성Composition of the Example 원료Raw material 투입량 (Phr)Input amount (Phr) 저발포층Low foaming layer 고발포층High Foaming Layer 1. EVA 1. EVA 3030 3030 2. LDPE 2. LDPE 7070 7070 3. 탄산칼슘 3. Calcium Carbonate 4040 1One 4. 카본블랙 4. Carbon Black 1313 1One 5. 스테아르산(가공조제) 5. Stearic acid (processing aid) 22 1One 6. 가교제(DCP 98중량%) 6. Crosslinking agent (DCP 98% by weight) 1.41.4 0.70.7 7. 아조디카보네이트(발포제) 7. Azodicarbonate (foaming agent) 1212 1One 합계Sum 168.4168.4 104.7104.7

상기 조성에 따라 하기와 같은 방법으로 본 발명 실시예의 창 및 굽 소재를 제조하였다.According to the composition was prepared the window and the heel material of the embodiment of the present invention as follows.

먼저, 배합단계로서, 상기 조성에 따라 계근된 원료중 EVA, LDPE, 탄산칼슘, 카본블랙 및 스테아르산을 80℃로 조정된 Kneader기?(우성기공, 한국)에 넣고 가압 램(RAM)을 5kgf/cm2로 가압하여 5분간 믹싱한 후(믹싱 스크류 RPM: 전 34, 후 37), 여기에 발포제 및 발포조제를 투입하여 5분간 믹싱하고, 여기에 다시 가교제를 투입하여 10분간 믹싱하였다.First, a compounding step, the raw materials of the composition according to gyegeun EVA, LDPE, adjusting the calcium carbonate, carbon black and stearic acid in 80 ℃ Kneader group? (Woosung Pore, Korea) and pressurized ram (RAM) at 5kgf / cm 2 to mix for 5 minutes (mixing screw RPM: before 34, after 37), and then add blowing agent and foaming aid to mix for 5 minutes Then, a crosslinking agent was added thereto and mixed for 10 minutes.

다음에, 롤믹싱단계로서, 상기와 같이 배합된 후 이송된 배합물을 간격 10mm의 롤(Roll)에서 90℃의 온도로 10분 동안 믹싱하였다. (RPM: 전 14, 후 12)Next, as a roll mixing step, the blended and then conveyed mixture was mixed for 10 minutes at a temperature of 90 ° C. on a roll of 10 mm intervals. (RPM: Before 14, After 12)

다음에, 시팅단계로서, 상기와 같이 롤 믹싱된 배합물을 절단기(cutter)에서 저발포층용은 1.3mm의 두께로, 고발포층용은 1.0mm의 두께로 절단(cutting)하여 원판(sheet)을 제조한다.Next, as a sheeting step, the roll-mixed blend is cut into a thickness of 1.3 mm for a low foaming layer and a thickness of 1.0 mm for a high foaming layer in a cutter to produce a sheet. do.

다음에, 발포 및 적층압착단계로서, 상기와 같이 제조된 각 층의 원판(Sheet)을 몰드 체적의 102부피%에 해당하는 양만큼 계량한 후, 원하는 적층 횟수에 해당하는 수로 교호 적층하여, 가압프레스(발포기)에서 150℃의 온도를 유지하면서 150kgf/cm2의 유압으로 20분 동안 가열가압함으로써 발포 및 적층압착시켰다.Next, as the foaming and lamination pressing step, the sheet of each layer manufactured as described above was weighed by an amount corresponding to 102% by volume of the mold volume, and then alternately laminated by a number corresponding to the desired number of laminations, and pressed. Foaming and lamination were compressed by heating and pressing for 20 minutes at 150 kgf / cm 2 hydraulic pressure while maintaining a temperature of 150 ° C. in a press (foaming machine).

다음에, 냉각단계로서, 상기와 같이 발포된 뒷굽 원단을 13℃의 온도에서 30분 동안 냉각시켜 본 발명 창 및 굽 소재 원단의 저발포/고발포 교호 적층구조를 완성하였다.Next, as a cooling step, the foamed heel fabric was cooled at a temperature of 13 ° C. for 30 minutes to complete a low-foam / high-foamed alternating lamination structure of the window and the heel fabric of the present invention.

이와 같이 완성된 본 발명 실시예 신발 창 및 굽 소재의 밀도를 측정한 결과, 저발포층이 0.23g/cm3의 밀도를, 고발포층이 0.09g/cm3의 밀도를 가지고 있는 것으로 나타났는데, 이와 같이 저발포층까지도 낮은 밀도를 가짐으로써 가볍고 밀도가 낮아 신발 뒷굽에 쿠션감을 줄 수 있고, 가공성이 우수하며, 운송시 취급이 용이하고, 더 적은 양의 원료를 필요로 함으로써 자재비가 절감되는 소재임이 증명되었다고 할 수 있다.As a result of measuring the density of the shoe sole and the heel material of the present invention thus obtained, it was found that the low-foaming layer has a density of 0.23 g / cm 3 , the high-foaming layer has a density of 0.09 g / cm 3 , In this way, even the low foaming layer has a low density, which is light and low in density, which gives a sense of cushioning to the heel of the shoe, is excellent in workability, is easy to handle during transportation, and requires a lower amount of material, thereby reducing material costs. It can be said that the proof.

또한, 저발포층의 절단면은 비교적 큰 크기의 기공을 형성함으로써 빛을 굴절시켜 반짝이게 하는 광택효과를 가지는 것을 알 수 있었는데, 이로 인해 종래 적층구조에 비해 훨씬 더 미려한 외감을 가지는 신발 창 및 굽 소재의 적층구조를 제공할 수 있게 된 것이다.In addition, the cut surface of the low-foaming layer was found to have a gloss effect to refract the light by forming a relatively large pores, thereby causing a shoe window and heeled material having a much more beautiful outer appearance than the conventional laminated structure It is possible to provide a laminated structure of.

이상과 같이 본 발명이 완성됨으로써, 피혁 원단에 비하여 원료의 가격이 훨씬 저렴한 저발포성 합성 수지 및 고발포성 합성 수지를 여러번 교호 적층함으로써 신발 창 및 굽에 광택/무광택 교호구조의 선명한 적층구조를 형성할 수 있는, 신발 창 및 굽 소재의 제조방법과 이를 이용하여 제조하는 신발 창 및 굽 소재가 제공될 수 있게 되었다.By completing the present invention as described above, the low-foaming synthetic resin and the high-foaming synthetic resin which are much lower in cost than the raw material of the leather fabric are alternately laminated several times to form a clear laminated structure of a glossy / matte alternating structure on the shoe window and the heel. It is possible to provide a shoe sole and a heel material manufacturing method and a shoe sole and a heel material manufactured using the same.

또한, 이와 같이 본 발명이 완성됨으로써, 외관에 선명하고 미려한 적층 구조가 나타날 뿐만 아니라, 내구성과 함께 쿠션기능을 가지고 있음으로써 착용시 편의성까지 향상되고, 합성 수지 발포성 재료를 사용함으로써 제조 원가를 절감할 수 있는 신발 창 및 굽 소재의 제조방법과 이를 이용하여 제조하는 신발 창 및 굽 소재의 적층구조가 제공될 수 있게 된 것이다. In addition, by the completion of the present invention, not only the appearance of a clear and beautiful laminated structure in appearance, but also having a cushioning function with durability, the convenience of wearing is improved, and the manufacturing cost can be reduced by using a synthetic resin foam material. It is possible to provide a shoe sole and a method of manufacturing a heel material and a laminated structure of a shoe window and a heel material manufactured using the same.

도 1은 종래기술에 따른 적층구조의 사시도,1 is a perspective view of a laminated structure according to the prior art,

도 2는 본 발명에 따른 적층구조의 사시도,2 is a perspective view of a laminated structure according to the present invention;

도 3은 본 발명 제조방법의 공정도.3 is a process diagram of the manufacturing method of the present invention.

Claims (4)

신발 창 및 굽 소재의 제조방법에 있어서,In the manufacturing method of shoe soles and heeled material, 에틸렌 비닐 아세테이트(EVA: Ethylene Vinyl Acetate, VA 12-22중량%), 저밀도 폴리에틸렌(LDPE: Low Density Polyethylene, Melt Index 0.1-5.0), 탄산칼슘(CaCO3), 카본블랙(Carbon Black) 및 가공조제로서의 스테아르산(Stearic Acid)을 50-120℃로 조정된 배합기에 넣고, 믹싱 스크류 RPM을 전 30-35, 후 35-40으로 하여 가압 램(RAM)을 4-6kgf/cm2로 가압하면서 5분간 믹싱한 후, 여기에 발포제로서의 아조디카보네이트(Azodicarbonate) 및 발포조제를 투입하여 5분간 믹싱하고, 여기에 다시 가교제(DCP: Decumil Peroxide 98중량%)를 투입하여 10분간 믹싱하는 것으로 이루어지는 배합단계,Ethylene Vinyl Acetate (EVA: 12-22 wt% VA), Low Density Polyethylene (LDPE: Low Density Polyethylene, Melt Index 0.1-5.0), Calcium Carbonate (CaCO 3 ), Carbon Black and Processing Aids Stearic acid as 50 to 120 ℃ in the blender adjusted to 30-35 before, 35-40 after the pressurized RAM (RAM) to 4-6kgf / cm 2 while pressing 5 After mixing for 5 minutes, azodicarbonate and foaming aid as a blowing agent are added thereto, followed by mixing for 5 minutes, and a crosslinking agent (DCP: 98% by weight of Decumil Peroxide) is added thereto, followed by mixing for 10 minutes. , 배합된 배합물을, 간격 10mm의 롤(Roll)에서, 믹싱 스크루 RPM을 전 13-15, 후 11-13로 하여 80-100℃의 온도로 10분 동안 믹싱하는 것으로 이루어지는 롤믹싱단계,A roll mixing step consisting of mixing the blended compound for 10 minutes at a temperature of 80-100 ° C. with a mixing screw RPM of 13-15 before and 11-13 after a roll of 10 mm intervals, 롤 믹싱된 배합물을, 절단기(cutter)에서, 저발포층용은 0.2-2.0mm의 두께로, 고발포층용은 0.1-2.0mm의 두께로 절단(cutting)하여 원판(sheet)을 제조하는 것으로 이루어지는 시팅단계,Sheeting consisting of cutting a roll-mixed formulation in a cutter to produce a sheet with a thickness of 0.2-2.0 mm for low foaming layers and 0.1-2.0 mm for high foaming layers. step, 시팅된 각 층의 원판(Sheet)을 몰드 체적의 101-105부피%에 해당하는 양만큼 계량한 후, 원하는 적층 횟수에 해당하는 수로 교호 적층하여, 가압프레스에서 130-180℃의 온도를 유지하면서 50-250kgf/cm2의 유압으로 10-50분 동안 가열가압함으로써 발포 및 적층압착시키는 것으로 이루어지는 발포 및 적층압착단계, 및Sheets of each sheet layered were weighed by an amount corresponding to 101-105% by volume of the mold volume, and then alternately laminated by a number corresponding to the desired number of laminations, while maintaining a temperature of 130-180 ° C in a press. Foaming and laminating compression step consisting of foaming and laminating compression by heating and pressing for 10-50 minutes with a hydraulic pressure of 50-250kgf / cm 2 , and 발포 및 적층압착된 원단을 15℃ 이하의 온도에서 10-60분 동안 냉각시키는 것으로 이루어지는 냉각단계로 구성됨을 특징으로 하는,Characterized by consisting of a cooling step consisting of cooling the foamed and laminated compressed fabric at a temperature of 15 ℃ or less for 10-60 minutes, 신발 창 및 굽 소재의 제조방법.Method of manufacturing shoe soles and heeled materials. 제 1항에 있어서,The method of claim 1, 저발포층에서, 전체 원료의 합을 100중량%로 하였을 때, EVA는 1-96.8중량%, LDPE는 1-96.8중량%, 탄산칼슘(CaCO3)은 1-96.8중량%, 카본블랙은 1-50중량%, 가공조제로서의 스테아르산은 0.1-4.0중량%, 가교제는 0.1-4.0중량%, 발포제로서의 아조디카보네이트는 1-20중량%의 양으로 사용되며,In the low foaming layer, when the sum of all the raw materials is 100% by weight, EVA is 1-96.8% by weight, LDPE is 1-96.8% by weight, calcium carbonate (CaCO 3 ) is 1-96.8% by weight, and carbon black is 1 -50% by weight, 0.1-4.0% by weight stearic acid as processing aid, 0.1-4.0% by weight crosslinking agent, 1-20% by weight azodicarbonate as blowing agent, 고발포층에서, 전체 원료의 합을 100중량%로 하였을 때, EVA는 1-97.8중량%, LDPE는 1-97.8중량%, 탄산칼슘(CaCO3)은 1-97.8중량%, 카본블랙은 1-50중량%, 가공조제로서의 스테아르산은 0.1-2.0중량%, 가교제(DCP 98중량%)는 0.1-2.0중량%, 발포제로서의 아조디카보네이트는 1-15중량%의 양으로 사용됨을 특징으로 하는,In the high foaming layer, when the total amount of raw materials is 100% by weight, EVA is 1-97.8% by weight, LDPE is 1-97.8% by weight, calcium carbonate (CaCO 3 ) is 1-97.8% by weight, and carbon black is 1- 50% by weight, stearic acid as a processing aid 0.1-2.0% by weight, crosslinking agent (DCP 98% by weight) 0.1-2.0% by weight, azodicarbonate as a blowing agent is used in an amount of 1-15% by weight, characterized in that 신발 창 및 굽 소재의 제조방법.Method of manufacturing shoe soles and heeled materials. 신발 창 및 굽 소재의 적층구조에 있어서,In the laminated structure of the shoe window and the heel material, 0.20-0.25g/cm3의 밀도를 가지며 광택인 저발포층과 0.07-0.12g/cm3의 밀도를 가지며 무광택인 고발포층이 교호 적층되어 구성됨을 특징으로 하는,Has a density of 0.20-0.25g / cm 3 which has a gloss of low-density foam layer and 0.07-0.12g / cm 3, characterized by the matte charged fabric layer is composed of an alternating stack, 신발 창 및 굽 소재의 적층구조.Laminated structure of shoe window and heeled material. 제 3항에 있어서,The method of claim 3, wherein 저발포층에는, 전체 원료의 합을 100중량%로 하였을 때, EVA가 1-96.8중량%, LDPE가 1-96.8중량%, 탄산칼슘(CaCO3)이 1-96.8중량%, 카본블랙이 1-50중량%, 가공조제로서의 스테아르산이 0.1-4.0중량%, 가교제가 0.1-4.0중량%, 발포제로서의 아조디카보네이트가 1-20중량%의 양으로 함유되며,In the low-foaming layer, when the sum of all the raw materials is 100% by weight, 1-96.8% by weight of EVA, 1-96.8% by weight of LDPE, 1-96.8% by weight of calcium carbonate (CaCO 3 ), and carbon black 1 -50 wt%, 0.1-4.0 wt% stearic acid as processing aid, 0.1-4.0 wt% crosslinking agent, and 1-20 wt% of azodicarbonate as blowing agent, 고발포층에는, 전체 원료의 합을 100중량%로 하였을 때, EVA가 1-97.8중량%, LDPE가 1-97.8중량%, 탄산칼슘(CaCO3)이 1-97.8중량%, 카본블랙이 1-50중량%, 가공조제로서의 스테아르산이 0.1-2.0중량%, 가교제(DCP 98중량%)가 0.1-2.0중량%, 발포제로서의 아조디카보네이트가 1-15중량%의 양으로 함유됨을 특징으로 하는,When the sum of all the raw materials is 100% by weight, the high foaming layer contains 1-97.8% by weight of EVA, 1-97.8% by weight of LDPE, 1-97.8% by weight of calcium carbonate (CaCO 3 ) and 1-97% of carbon black. 50% by weight, 0.1-2.0% by weight stearic acid as processing aid, 0.1-2.0% by weight crosslinking agent (98% by weight of DCP), and 1-15% by weight of azodicarbonate as blowing agent, characterized in that 신발 창 및 굽 소재의 적층구조.Laminated structure of shoe window and heeled material.
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Publication number Priority date Publication date Assignee Title
KR100721133B1 (en) 2006-08-16 2007-05-23 임세영 Sole
KR100894963B1 (en) 2008-11-24 2009-04-24 임세영 Rubber composition for shoes sole materials and a shoe sole having natural leather material-like feel prepared using the same

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