KR100356150B1 - Manufacture method of footwear out sole of using heating-cooling - Google Patents
Manufacture method of footwear out sole of using heating-cooling Download PDFInfo
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- KR100356150B1 KR100356150B1 KR1020000007682A KR20000007682A KR100356150B1 KR 100356150 B1 KR100356150 B1 KR 100356150B1 KR 1020000007682 A KR1020000007682 A KR 1020000007682A KR 20000007682 A KR20000007682 A KR 20000007682A KR 100356150 B1 KR100356150 B1 KR 100356150B1
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- Prior art keywords
- thermoplastic elastomer
- cooling
- manufacturing
- sole
- heating
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 25
- 238000001816 cooling Methods 0.000 title claims description 22
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 50
- 229920001971 elastomer Polymers 0.000 claims abstract description 11
- 239000005060 rubber Substances 0.000 claims abstract description 11
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 9
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000005977 Ethylene Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920006026 co-polymeric resin Polymers 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 4
- 229920001194 natural rubber Polymers 0.000 claims abstract description 4
- 229920013716 polyethylene resin Polymers 0.000 claims abstract description 4
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 4
- 239000005061 synthetic rubber Substances 0.000 claims abstract description 4
- 239000004711 α-olefin Substances 0.000 claims abstract description 4
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 9
- 229920001187 thermosetting polymer Polymers 0.000 claims description 7
- 150000001336 alkenes Chemical class 0.000 claims description 5
- 238000000748 compression moulding Methods 0.000 claims description 5
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 238000001721 transfer moulding Methods 0.000 claims description 2
- 229920005989 resin Polymers 0.000 abstract description 7
- 239000011347 resin Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 229920002397 thermoplastic olefin Polymers 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 description 12
- 238000001746 injection moulding Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 7
- 239000000155 melt Substances 0.000 description 5
- 238000003912 environmental pollution Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
Classifications
-
- 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
- B29D35/126—Uppers
-
- 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
- B29D35/0054—Producing footwear by compression moulding, vulcanising or the like; Apparatus therefor
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/02—Uppers; Boot legs
- A43B23/0205—Uppers; Boot legs characterised by the material
- A43B23/0215—Plastics or artificial leather
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
본 발명은 스티렌계 열가소성 엘라스토머, 올레핀계 열가소성 엘라스토머(TPO), 가교형 올레핀계 열가소성 엘라스토머(TPV), 에틸렌/α-올레핀계 공중합체, 클로로프렌화 폴리에틸렌 수지, 에틸렌/비닐 아세테이트 공중합체 수지를 단독 또는 블렌드하여 기재로 사용하거나, 또는 이들 각각의 수지에 천연고무나 합성고무, 또는 이들의 액상 고무를 블렌드한 블렌드물을 기재로하여 가열 냉각 프레스에 의하여 신발 겉창을 제조하는 방법에 관한 것이다.The present invention is a styrene-based thermoplastic elastomer, olefinic thermoplastic elastomer (TPO), cross-linked olefinic thermoplastic elastomer (TPV), ethylene / α-olefin copolymer, chloroprenized polyethylene resin, ethylene / vinyl acetate copolymer resin alone or The present invention relates to a method of manufacturing a shoe outsole by a hot and cold press, which is used as a base material by blending or a blend of natural rubber, synthetic rubber, or liquid rubber thereof in each of these resins.
Description
본 발명은 신발 겉창의 제조 방법에 관한 것으로서, 특히 열가소성 엘라스토머를 이용하여 가열 냉각에 의하여 신발 겉창을 제조하는 방법에 관한 것이다.The present invention relates to a method for producing a shoe outsole, and more particularly, to a method for manufacturing a shoe outsole by heating and cooling using a thermoplastic elastomer.
현재 사용되고 있는 신발 겉창 소재는 열경화성 고무가 가장 일반화된 소재이며, 생산 방식은 압축성형법이 거의 대부분이다. 열경화성 고무의 압축성형에 의한 제조 방법은 열경화성 고무 자체의 특성으로 외관 특성이 우수하고 제반 역학적 특성이 우수한 장점이 있으나 폐 스크랩의 재활용이 불가능하여 환경오염 문제를 야기하고 있다.The currently used shoe outsole material is the most common thermosetting rubber, the compression method is almost the production method. The compression method of thermosetting rubber has the advantages of excellent appearance characteristics and general mechanical properties due to the characteristics of thermosetting rubber itself, but it is not possible to recycle waste scrap, causing environmental pollution problems.
한편, 열가소성 수지는 일반적으로 사출성형법에 의하여 제조되어 신발창으로 활용되고 있으나 열악한 물성 때문에 아동화나 부인화 등 고도의 물성을 요하지 않는 저가품에 주로 이용되어 왔으며, 빅 바이어 들은 신발창용으로 열가소성 엘라스토머를 기피하는 실정이었다.On the other hand, thermoplastic resins are generally manufactured by injection molding and are utilized as soles, but they have been mainly used for low-cost products that do not require high physical properties such as children's shoes or women's shoes because of poor physical properties, and big buyers avoid thermoplastic elastomers for soles. It was a situation.
이에 본 발명자 등은 열가소성 엘라스토머의 고성능화에 대한 연구 결과로부터 이들을 사출성형이 아니라 압축성형을 기본으로 하는 가열 냉각에 의한 성형으로 생산하므로 신발창의 고성능화를 달성하고, 폐스크랩 재활용에 의한 환경오염문제의 해결 및 가격경쟁력 확보, 기존의 압축성형용 금형이나 프레스기를 그대로 활용할 수 있는 방법을 개발하기에 이르렀다.Therefore, the inventors of the present invention produce them by molding by heating and cooling based on compression molding rather than injection molding from the results of research on the high performance of the thermoplastic elastomer to achieve high performance of the shoe sole, and solve the environmental pollution problem by waste scrap recycling In addition, it has secured price competitiveness and developed a method that can utilize existing compression molding dies and presses.
따라서, 본 발명은 전술한 바와 같은 제반적인 사안들을 감안한 것으로, 그 목적은 압축 성형방법을 기본으로 하여 열가소성 탄성체의 특성을 최대한 활용한 기술로 기존의 신발창 특히 겉창 생산에 일반화되어 있는 프레스를 그대로 활용할 수 있는 가열 냉각에 의한 신발 겉창의 제조방법을 제공함에 있다.Accordingly, the present invention has been made in view of the above-mentioned general issues, and its object is to utilize the characteristics of the thermoplastic elastomer based on the compression molding method to the maximum, and to utilize the press generalized in the production of existing soles, especially outsoles. The present invention provides a method for manufacturing a shoe outsole by heating and cooling.
본 발명의 다른 목적은 폐스크랩의 재이용이 가능하여 폐기물 방출에 의한 환경 오염 문제를 해결할 수 있는 신발 겉창의 제조방법을 제공함에 있다.Another object of the present invention is to provide a method for manufacturing a shoe outsole that can be reused waste scrap to solve the problem of environmental pollution by waste discharge.
상기한 바와 같은 목적을 달성하기 위한 제1견지에 따른 본 발명은 스티렌계 열가소성 엘라스토머, 올레핀계 열가소성 엘라스토머(TPO), 가교형 올레핀계 열가소성 엘라스토머(TPV), 에틸렌/α-올레핀계 공중합체, 클로로프렌화 폴리에틸렌 수지, 에틸렌/비닐 아세테이트 공중합체 수지를 단독 또는 블렌드하여 기재로 사용하거나, 또는 이들 각각의 수지에 천연고무나 합성고무, 또는 이들의 액상 고무를 블렌드한 블렌드물을 기재로하여 가열 냉각에 의하여 신발 겉창을 제조하는 방법을 제안한다.The present invention according to the first aspect for achieving the above object is a styrene-based thermoplastic elastomer, an olefinic thermoplastic elastomer (TPO), a cross-linked olefinic thermoplastic elastomer (TPV), ethylene / α-olefin copolymer, chloroprene It is used as a base material alone or in blended polyethylene resin, ethylene / vinyl acetate copolymer resin, or a blend of natural rubber, synthetic rubber, or liquid rubber of these resins. It proposes a method for manufacturing a shoe outsole.
이하 본 발명에 따른 바람직한 실시 예를 상세히 설명한다. 그리고, 하기의 설명에서는 본 발명의 제조 방법을 이해하는데 필요한 부분만이 설명되며 그 이외부분의 설명은 본 발명의 요지를 흐트리지 않도록 생략될 것이라는 것을 유의하여야 한다.Hereinafter, preferred embodiments of the present invention will be described in detail. In the following description, it should be noted that only parts necessary for understanding the manufacturing method of the present invention will be described, and descriptions of other parts will be omitted so as not to obscure the subject matter of the present invention.
우선, 본 발명에서 사용 가능한 수지가 열가소성 엘라스토머에 특히 한정되는 것은 아니지만 스티렌계 열가소성 엘라스토머가 주로 사용되며, 올레핀계 열가소성 엘라스토머, 에틸렌/α-올레핀계 공중합체, 클로로프렌화 폴리에틸렌 수지, 에틸렌/비닐 아세테이트 공중합체 수지 등이 단독 또는 블렌드하여 기재로 사용하는 것이 가능하다. 그리고 필요에 따라서는 열가소성 엘라스토머를 주재로 하고, 여기에 열경화성 고무로 대표되는 천연고무나 합성고무, 또는 이들의 액상 고무를 블렌드하여 사용하는 것도 가능하다.First, although the resin usable in the present invention is not particularly limited to thermoplastic elastomers, styrene-based thermoplastic elastomers are mainly used, and olefin-based thermoplastic elastomers, ethylene / α-olefin-based copolymers, chloroprenated polyethylene resins, and ethylene / vinyl acetate aerials Copolymer resin etc. can be used individually or as a base material. If necessary, thermoplastic elastomers are used as the main components, and natural rubbers, synthetic rubbers or liquid rubbers thereof represented by thermosetting rubbers can be blended therein.
한편, 기타 경도 조절을 위하여 폴리스티렌을 사용하는 것도 가능하며, 가공성이나 물성 향상을 위하여 프로세스 오일이나 충전제, 실란커플링제, 열안정제, 산화방지제 및 자외선흡수제 등이 혼합되어 사용될 수도 있다.On the other hand, it is also possible to use polystyrene to control the hardness, and process oils or fillers, silane coupling agents, heat stabilizers, antioxidants and ultraviolet absorbers may be used in combination to improve processability or physical properties.
본 발명은 이와 같이 컴파운드된 열가소성 수지를 사용하여 가열 냉각에 의하여 신발창, 특히 겉창을 제조하는 것에 특징이 있다. 성형과정에서 패션성을 향상시키기 위하여 색깔이 서로 다른 열가소성 엘라스토머를 동시에 성형하여 부위별로 색깔을 다르게한 신발 겉창을 제조하는 것도 가능하다. 더욱이 각 부위별로 요구특성이 다른 신발창의 특성에 맞추어서 부위별로 물리적 특성이 다른 열가소성 엘라스토머를 넣고 동시에 성형하는 것도 가능하여 신발창에서 요구되는 특성에 따라 부위별로 차별화된 기능성을 부여하는 것도 가능하다.The present invention is characterized in the manufacture of soles, in particular outsoles, by heating and cooling using such compounded thermoplastic resins. In order to improve fashionability in the molding process, it is also possible to manufacture shoe soles having different colors for each part by simultaneously molding thermoplastic elastomers having different colors. Moreover, it is also possible to simultaneously insert thermoplastic elastomers having different physical properties for each part in accordance with the characteristics of soles having different required characteristics for each part, and to provide differentiated functionality for each part according to the characteristics required in the sole.
또한 본 발명의 성형 방법에 있어서는 각 조성의 색상을 달리할 경우 압축과정에서 수지의 흐름에 의하여 발생되는 월색을 방지하기 위하여 예비 단계로 가운데 부분에 월색 방지용 수지 또는 금속제 쉬트를 삽입하여 성헝하거나 이들을 삽입하였다가 제거하고 성형하거나 또는 금형에 월색방지를 위한 방지턱을 설계하는 것이 가능하다.In addition, in the molding method of the present invention, when the color of each composition is different, in order to prevent the color generated by the flow of the resin during the compression process, the color preventing resin or the metal sheet is inserted into the middle part as a preliminary step, and the mating is inserted. It is possible to remove and shape the mold or to design the jaw to prevent the color of the mold.
본 발명의 열가소성 엘라스토머를 활용한 가열 냉각에 의한 신발 겉창 제조 방법은 제조 방법의 특징상 일반의 열가소성 엘라스토머의 성형 방법인 사출성형에서 흐름성 문제로 적용할 수 없던 흐름성(용융점도지수)이 극히 낮은 열가소성 엘라스토머를 적용할 수 있기 때문에 신발창의 고성능화가 가능하여 역학적 특성면에서 기존의 열경화성 고무의 역학적 특성 수준 이상으로 물리적 특성을 향상시키는 것이 가능하다. 즉, 성형 방법의 특성상 사출성형의 경우 스크류를 통하여 용융된 수지를 흘러가도록 하여야 하기 때문에 기재인 열가소성 엘라스토머의 분자량에 한계가 있었으나 본 발명은 압축성형법을 채택하는 관계로 이와 같은 제한 요인이 없어서 고분자량화할 수 있고 따라서 물성의 고성능화가 가능하다.The shoe outsole manufacturing method by heating and cooling using the thermoplastic elastomer of the present invention has very low flowability (melt viscosity index), which is not applicable to flowability in injection molding, which is a general method for forming thermoplastic elastomers, due to the characteristics of the manufacturing method. Since low thermoplastic elastomers can be applied, it is possible to improve the performance of the sole and improve the physical properties beyond the mechanical properties of the conventional thermosetting rubber in terms of mechanical properties. That is, due to the nature of the molding method, in the case of injection molding, the molten resin should flow through the screw, but the molecular weight of the thermoplastic elastomer, which is the base material, was limited. However, the present invention does not have such a high limiting factor because it adopts the compression molding method. It is possible to achieve high performance of the physical properties.
따라서 본 발명에 있어서 바람직한 열가소성 엘라스토머는 본 발명을 한정하는 것은 아니나 흐름성에 제한이 없기 때문에 사출성형에서 사용되는 용융 흐름성 지수(MFI) 5∼30 범위보다 훨씬 낮은 5이하로 0.5나 또는 그 이하의 용융 흐름성 지수의 수지를 사용할 수 있다Thus, the preferred thermoplastic elastomers in the present invention do not limit the present invention, but there is no limitation in flowability, so that the melt flowability index (MFI) used in injection molding is much lower than 5 or less than 0.5 or less than 0.5 to 0.5 or less. Melt flow index resin can be used
더욱 외관 특성에 기인되는 문제점이나 열가소성 엘라스토머를 사출성형에 의하여 제조할 경우 광택 문제가 야기되고 있으며, 이는 빅 바이어로부터 기피되는 가장 큰 이유이기도 하나 본 발명의 가열 냉각에 의한 성형 방법을 채택할 경우 광택문제가 완전히 해결될 수 있다.Furthermore, the problem caused by the appearance characteristics or the gloss problem is caused when the thermoplastic elastomer is manufactured by injection molding, which is the biggest reason to be avoided from the big buyer, but the gloss is adopted when the molding method by heat-cooling of the present invention is adopted. The problem can be completely solved.
한편, 본 발명에 있어서 열가소성 엘라스토머를 가열 냉각에 의하여 제조하기 위해서는 미리 용융점 이상으로 가열된 열가소성 엘라스토머를 열가소성 엘라스토머의 용융점 이하의 온도의 금형에 넣고 프레스기를 이용하여 가압하여 성형하는 방법이 있으며, 또는 직접 열프레스로 성형한 후 냉각프레스로 옮겨서 성형하는 방법이 적용될 수 있다. 이때 열가소성 엘라스토머의 투입량은 금형의 캐비티 용량의 105∼130 % 범위가 적당하며, 이 양 이하일 경우 핀홀이나 에어 홀이 생기기 쉬우며 이 범위 이상일 경우 성형상에 개선효과는 없으면서 원료 사용량만 늘어나게 된다.Meanwhile, in the present invention, in order to manufacture the thermoplastic elastomer by heating and cooling, there is a method in which a thermoplastic elastomer, which has been heated above the melting point in advance, is put into a mold at a temperature below the melting point of the thermoplastic elastomer and pressurized using a press machine, or directly After molding by hot press, the method of molding by transferring to cold press may be applied. In this case, the injection amount of the thermoplastic elastomer is in the range of 105 to 130% of the cavity capacity of the mold, and if it is less than this amount, pinholes or air holes are likely to occur.
또한 본 발명에 있어서는 열가소성 엘라스토머를 펠렛으로 투입하거나 쉬트성형 후 재단하여 투입하는 것이 가능하며, 금형 온도도 열가소성 엘라스토머와 함께 가열 후 냉각 과정을 거치거나 별도로 가열된 열가소성 엘라스토머를 사용하여 냉각 과정을 거치게 되지만 신발 겉창을 취출할 때의 금형 온도는 0∼80℃의 온도범위여야 한다. 만약 금형 온도를 0℃ 이하로 할 경우 냉각을 위한 에너지 로스가 큰 반면 성형상의 더 이상의 유리한 점은 없으며 80℃ 이상의 온도에서는 열가소성 엘라스토머의 연화점에 가까워지기 때문에 형태안정성이 떨어져 성형성에 문제가 있다.In addition, in the present invention, it is possible to inject the thermoplastic elastomer into the pellet or cut the sheet after molding, and the mold temperature is also subjected to the cooling process after heating and cooling with the thermoplastic elastomer or by using a separately heated thermoplastic elastomer. The mold temperature at the time of taking out the shoe outsole should be in the temperature range of 0 ~ 80 ℃. If the mold temperature is below 0 ° C, the energy loss for cooling is high, but there is no further advantage in forming, and at temperatures above 80 ° C, the softening point of the thermoplastic elastomer is so close that there is a problem in formability due to poor form stability.
본 발명에 사용되는 금형은 특히 한정되는 것은 아니지만 일반 열경화성 고무를 사용하는 금형과 동일하거나 또는 이송성형(transfer molding)용 금형이 사용 가능하다.The mold used in the present invention is not particularly limited, but a mold for transfer molding may be the same as a mold using a general thermosetting rubber.
이하 본 발명을 실시예에 의하여 보다 구체적으로 설명하고자 하나, 본 발명이 실시예에 의거하여 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited based on Examples.
[실시예 1] Example 1
용융지수(MI) 0.5의 열가소성 엘라스토머를 140℃의 oven에 5분간 예열한 후, 이를 60℃로 설정된 금형에 넣어 2분간 가압 프레스하여 신발창을 제조하였으며, 이로부터 측정한 물성시험 결과를 표 1에 나타내었다.The thermoplastic elastomer having a melt index (MI) of 0.5 was preheated in an oven at 140 ° C. for 5 minutes, and then pressed into a mold set at 60 ° C. for 2 minutes to prepare a shoe sole. The results of the physical property test measured therefrom are shown in Table 1 below. Indicated.
[실시예 2] Example 2
용융지수(MI) 0.1의 열가소성 엘라스토머를 150℃로 설정된 금형으로 30초간 가압한 후, 상기 금형을 냉각 프레스로 옮겨 7분간 가압하면서 40℃ 이하로 냉각하여 금형에서 치출하여 신발창을 성형하였으며, 이로부터 측정한 물성시험 결과를 표 1에 나타내었다.After pressing the thermoplastic elastomer having a melt index (MI) of 0.1 with a mold set at 150 ° C. for 30 seconds, the mold was transferred to a cooling press and cooled to 40 ° C. or lower while pressing for 7 minutes, and then extracted from the mold to form a shoe sole. Table 1 shows the measured property test results.
[실시예 3] Example 3
상기 실시예 2에서 발생된 폐스크랩을 원료 조성물에 20중량부 블렌드하여 전술한 실시예 2와 동일한 방법으로 신발창을 성형하였으며, 이로부터 측정한 물성시험 결과를 표 1에 나타내었다.20 parts by weight of the waste scrap generated in Example 2 was blended into the raw material composition to form a shoe sole in the same manner as in Example 2, and the physical property test results measured therefrom are shown in Table 1.
[실시예 4] Example 4
상기 실시예 3에서 발생된 폐스크랩을 원료 조성물에 10중량부 블렌드하여 전술한 실시예 2와 동일한 방법으로 신발창을 성형하였으며, 이로부터 측정한 물성시험 결과를 표 1에 나타내었다.10 parts by weight of the waste scrap generated in Example 3 was blended to the raw material composition to form a shoe sole in the same manner as in Example 2, and the physical property test results measured therefrom are shown in Table 1.
[실시예 5] Example 5
용융 흐름성 지수(MFI) 15의 사출성형용의 일반 열가소성 엘라스토머를 이용하여 전술한 실시예 1의 방법으로 신발창을 성형하였으며, 이로부터 측정한 물성시험 결과를 표 1에 나타내었다.The sole was molded by the method of Example 1 described above using a general thermoplastic elastomer for injection molding of melt flow index (MFI) 15, and the results of the physical property test measured therefrom are shown in Table 1.
[비교예 1] Comparative Example 1
용융 흐름성 지수(MI) 0.5의 열가소성 엘라스토머(실시예 1에서 사용된 열가소성 엘라스토머)를 사용하여 사출성형으로 신발창을 제조하려고 하였으나 용융 흐름 지수가 낮아서 성형 불가능하였다.An attempt was made to produce a shoe sole by injection molding using a thermoplastic elastomer of melt flow index (MI) 0.5 (the thermoplastic elastomer used in Example 1), but the melt flow index was low and impossible to mold.
[비교예 2] Comparative Example 2
용융 흐름성 지수(MFI) 15의 열가소성 엘라스토머를 이용하여 사출성형법으로 열가소성 엘라스토머를 성형하였으며 물성시험 결과를 표1에 나타내었다.The thermoplastic elastomer of the melt flow index (MFI) 15 was used to mold the thermoplastic elastomer by injection molding, and the results of the physical property test are shown in Table 1.
한편, 전술한 본 발명의 실시예들과 비교예들의 물성 시험 결과치를 표 1에 상세히 서술하였다.On the other hand, the physical property test results of the above-described embodiments of the present invention and comparative examples are described in detail in Table 1.
이상으로 살펴본 바와 같이, 본 발명은 열가소성 엘라스토머를 이용하기 때문에 폐스크랩의 재이용이 가능하여 폐기물 방출에 의한 환경 오염 문제를 해결할수 있으며, 또한 원료 손실율을 줄여서 가격 경쟁력을 확보할 수 있는 장점을 가지고 있다.As described above, the present invention uses the thermoplastic elastomer, so that the waste scrap can be reused, thereby solving the problem of environmental pollution caused by waste discharge, and also reducing the loss of raw materials, thus having the advantage of securing the price competitiveness. .
특히, 본 발명에 따른 열가소성 엘라스토머의 가열 냉각에 의한 제조 방법은 기존의 신발창, 특히 겉창 생산에 일반화되어 있는 프레스를 그대로 활용할 수 있다는 점이 장점으로 부각될 수 있으며, 또한 흐름성에 제한이 없기 때문에 고물성화도 가능하다는 상승된 효과가 있다.In particular, the manufacturing method of the thermoplastic elastomer according to the present invention by heating and cooling can be an advantage that can be used as it is, the press that is generalized in the production of the existing shoe sole, in particular outsole, and also because there is no restriction in flowability There is also an elevated effect that it is possible.
Claims (7)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05115304A (en) * | 1991-10-29 | 1993-05-14 | Achilles Corp | Manufacture of injection molded fabric shoes |
| JPH06253905A (en) * | 1993-03-03 | 1994-09-13 | Showa Rubber Kk | Non-slip sole |
| JPH08214913A (en) * | 1995-02-13 | 1996-08-27 | Moon Star Co | Manufacture of foamed sole made of thermoplastic synthetic resin |
| KR19990022399U (en) * | 1999-02-11 | 1999-07-05 | 오판원 | Shoe Sole |
| JPH11245339A (en) * | 1993-06-28 | 1999-09-14 | Elf Atochem Sa | Composite structure including elastomer and thermoplastic polymer, and article including the same |
-
2000
- 2000-02-15 KR KR1020000007682A patent/KR100356150B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05115304A (en) * | 1991-10-29 | 1993-05-14 | Achilles Corp | Manufacture of injection molded fabric shoes |
| JPH06253905A (en) * | 1993-03-03 | 1994-09-13 | Showa Rubber Kk | Non-slip sole |
| JPH11245339A (en) * | 1993-06-28 | 1999-09-14 | Elf Atochem Sa | Composite structure including elastomer and thermoplastic polymer, and article including the same |
| JPH08214913A (en) * | 1995-02-13 | 1996-08-27 | Moon Star Co | Manufacture of foamed sole made of thermoplastic synthetic resin |
| KR19990022399U (en) * | 1999-02-11 | 1999-07-05 | 오판원 | Shoe Sole |
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