KR100747084B1 - dustproof shoe with electric conducting outsole - Google Patents
dustproof shoe with electric conducting outsole Download PDFInfo
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- KR100747084B1 KR100747084B1 KR1020050109856A KR20050109856A KR100747084B1 KR 100747084 B1 KR100747084 B1 KR 100747084B1 KR 1020050109856 A KR1020050109856 A KR 1020050109856A KR 20050109856 A KR20050109856 A KR 20050109856A KR 100747084 B1 KR100747084 B1 KR 100747084B1
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- 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
- A43B13/026—Composites, e.g. carbon fibre or aramid fibre; the sole, one or more sole layers or sole part being made of a composite
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- 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
- A43B13/04—Plastics, rubber or vulcanised fibre
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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
- B29D35/0054—Producing footwear by compression moulding, vulcanising or the like; Apparatus therefor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
본 발명은 도전성 아웃솔이 구비된 방진화에 관한 것으로, 정전기 방지용 아웃솔이 구비된 방진화에 있어서, 상기 아웃솔은 에틸렌비닐아세테이트(EVA) 60~100 중량부에 가교제 0.2~2 중량부, 발포제 3~10중량부, 충전제 3~10 중량부 및 전도성 고분자 첨가제 1~10중량부를 혼합하여 컴파운드 조성물을 형성하고, 컴파운드 조성물을 발포시킴에 의해 아웃솔을 형성시키는 도전성 아웃솔이 구비된 방진화를 기술적 요지로 한다. 이에 따라, 형성된 아웃솔을 각 작업형태의 특성에 맞추어 완성된 갑피(upper)와 함께 조립하여 최종 방진화가 완성되며, 완성된 방진화는 가벼움과 동시에 마모분진 등의 먼지가 발생하지 않는다는 이점이 있다. The present invention relates to a dustproofing provided with a conductive outsole, in the dustproofing provided with an antistatic outsole, the outsole is 0.2 to 2 parts by weight of crosslinking agent to 60 to 100 parts by weight of ethylene vinyl acetate (EVA), 3 to 3 foaming agents. The technical substance of dustproofing is provided with the conductive outsole which forms a compound composition by mixing 10 weight part, 3-10 weight part of fillers, and 1-10 weight part of conductive polymer additives, and forms an outsole by foaming a compound composition. . Accordingly, the formed outsole is assembled together with the finished upper according to the characteristics of each work type, and thus the final dustproofing is completed, and the completed dustproofing is advantageous in that light and dust such as abrasion dust do not occur.
방진화 도전성 분진 아웃솔 갑피 정전기 Dustproof Conductive Dust Outsole Upper Static Electricity
Description
본 발명은 방진화에 관한 것으로, 더욱 상세하게는, 인체 또는 외부와의 마찰 등에서 발생 되는 대전 정전기를 방지시킴과 동시에 발생된 정전기를 외부로 배출 할 수 있으며 미세먼지를 최소화 시키는 도전성 아웃솔이 구비된 방진화에 관한 것이다. The present invention relates to dustproofing, and more particularly, to prevent the static electricity generated from friction with the human body or the outside and to discharge the generated static electricity to the outside and to provide a conductive outsole for minimizing fine dust. It is about dustproofing.
일반적으로 집적회로 및 이의 조립체로 구성되는 반도체 등은 제조, 저장, 운반 등의 취급시에 집적회로의 파괴 또는 성능저하를 방지하기 위하여 정전기 충전/방전으로부터 보호되어야만 한다.In general, semiconductors composed of integrated circuits and assemblies thereof must be protected from electrostatic charging / discharging in order to prevent destruction or degradation of integrated circuits during handling such as manufacturing, storage, transport, and the like.
통상 작업자가 공장바닥을 걷는 단순한 동작에 의해 약 20,000 볼트를 초과하는 정전기 포텐셜을 발생시키는 것으로 알려져 있다. 이러한 정전기 포텐셜은 인체를 통하여 외부로 방전되는바, 작업자가 정전기에 민감한 정치에 접근하는 경우, 정전기는 장치측으로 방전됨에 의해 제품이 치명적 손상을 입게 된다. It is common practice to generate electrostatic potentials in excess of about 20,000 volts by a simple motion of a worker walking through the factory floor. Since the electrostatic potential is discharged to the outside through the human body, when the worker approaches the static-sensitive stationary static electricity is discharged to the device side, the product is fatally damaged.
상기의 문제점을 해결하기 위해 정전기를 방지하기 위한 다양한 시도가 있어왔다. In order to solve the above problems, various attempts have been made to prevent static electricity.
그 중 대표적인 예가 정전기 소산성 신발을 착용함에 의해 발생된 정전기를 신발 하부 등을 통해 외부로 바로 방전시키는 방법으로 정전기의 순간적인 방전을 방지하는 방법이다. A representative example is a method of preventing the instant discharge of static electricity by directly discharging the static electricity generated by wearing electrostatic dissipative shoes to the outside through the lower part of the shoe.
정전기 소산성 신발은 통상 신발창의 바닥면으로부터 안창면까지의 저항을 측정하는 경우 약 106 내지 109 ohm/sq 정도의 정전기 방전범위에 있게 된다. Electrostatic dissipative footwear is typically in the electrostatic discharge range of about 10 6 to 10 9 ohms / sq when measuring the resistance from the sole surface to the insole surface.
정전기 방지를 위한 대표적인 소산성 신발인 경우 첫째, PU 또는 PVC 를 이용하여 제작 사용하였으나, PU 또는 PVC 를 이용하는 경우 기재의 특성상 높은 비중으로 인해 신발 전체의 중량이 무거워 지는바 작업자의 피로도를 증가시켜 작업능률을 저하시켰다. Representative dissipative shoes for the anti-static First, using PU or PVC produced, but when using PU or PVC, the weight of the entire shoe is heavy due to the high specific gravity due to the characteristics of the substrate bar to increase the fatigue of the worker Reduced efficiency.
다른 예로서는 합성수지에 카본을 혼합하여 아웃솔을 성형하여 사용하였으나, 이는 마모에 의해 카본 분진 등의 먼지가 발생 됨에 의해 작업환경을 해치는 등의 문제가 발생하게 되었다. As another example, the outsole was formed by mixing carbon with synthetic resin, but this caused problems such as damage to the working environment due to generation of dust such as carbon dust due to abrasion.
따라서, 본 발명은 상기한 종래기술들의 문제점을 해결하기 위해 안출된 것으로, 에틸렌비닐아세테이드(EVA)를 주기재로 하고 여기에 충전제, 가교제, 발포제, 유기과산화물 및 도전성 첨가물을 브랜딩하여 프레스 몰딩법에 의해 성형된 신발용 아웃솔을 갑피에 조립하여 신발을 완성시킴에 의해 가벼움과 동시에 마모분진이 발생하지 않는 도전성 아웃솔이 구비된 방진화를 제공하는 것을 목적으로 한다.Accordingly, the present invention has been made to solve the problems of the prior art, press molding by ethylene vinyl acetate (EVA) as a base material and branding filler, crosslinking agent, foaming agent, organic peroxide and conductive additives It is an object of the present invention to provide a dustproof shoe provided with a conductive outsole which is lightweight and does not generate wear dust by assembling a shoe outsole molded by the method to an upper.
상기한 목적을 달성하기 위한 본 발명은, 정전기 방지용 아웃솔이 구비된 방진화에 있어서, 상기 아웃솔은 에틸렌비닐아세테이트(EVA) 60~100 중량부에 가교제 0.2~2 중량부, 발포제 3~10중량부, 충전제 3~10 중량부 및 전도성 고분자 첨가제 1~10중량부를 혼합하여 컴파운드 조성물을 형성하고, 컴파운드 조성물을 발포시킴에 의해 아웃솔을 형성시키는 도전성 아웃솔이 구비된 방진화를 기술적 요지로 한다. In the present invention for achieving the above object, in the anti-vibration provided with an anti-static outsole, the outsole is 0.2 to 2 parts by weight of crosslinking agent, 60 to 100 parts by weight of ethylene vinyl acetate (EVA), 3 to 10 parts by weight of blowing agent In order to make a compound composition by mixing 3-10 weight part of fillers, and 1-10 weight part of conductive polymer additives, and to make an outsole by foaming a compound composition, dustproofing provided with the conductive outsole is made into a technical subject matter.
여기서, 상기 컴파운드 조성물은 폴리올레핀 수지가 5~40 중량부 더 첨가되고, 상기 컴파운드 조성물에는 첨가제로서 산화아연, 스테아르산 중 하나 이상이 0.1 내지 5 중량부 첨가되는 것이 바람직하다.Here, the compound composition is 5 to 40 parts by weight of a polyolefin resin is further added, and at least one of zinc oxide and stearic acid is added to the compound composition as an additive 0.1 to 5 parts by weight.
그리고, 상기 컴파운드 조성물의 발포는, 컴파운드 조성물을 시트(sheet) 상으로 제조하고, 제조된 시트를 밀폐된 금형안에 투입한 후 프레스기를 이용하여 20~30분간 가공하여 가교제와 발포제를 분해시키고, 금형을 순간적으로 열어 압력을 제거함으로써 압력의 차이를 이용하여 급팽창시키는 1차 프레스 공정을 거쳐 연질의 독립기포 구조를 갖는 1차 발포체를 형성시킨 다음, 1차 발포체를 절단가공한 후 트리밍(trimming)과 그라인딩(grinding)의 공정을 거친 다음, 최종 성형 형태의 금형에 재차 투입하여 150~160℃에서 5~20분간 프레싱을 하고 다시 10~20℃ 정도의 온도에서 10~20분간 냉각시켜 아웃솔을 형성시키는 것이 바람직하다.In addition, the foaming of the compound composition, the compound composition is prepared in a sheet (sheet), the prepared sheet is put into a closed mold and processed using a press machine for 20 to 30 minutes to decompose the crosslinking agent and the foaming agent, the mold Is opened by instantaneous removal of pressure to form a primary foam having a soft independent bubble structure through a primary press process of rapid expansion using a difference in pressure, and then trimmed after cutting the primary foam. After grinding and grinding, it is put back into the final mold and pressed for 5 to 20 minutes at 150 to 160 ° C, and then cooled at a temperature of 10 to 20 ° C for 10 to 20 minutes to form an outsole. It is preferable to make it.
이에 따라, 상기에서 형성된 아웃솔을 각 작업형태의 특성에 맞추어 완성된 갑피(upper)와 함께 조립하여 최종 방진화가 완성되며, 완성된 방진화는 가벼움과 동시에 마모분진 등이 발생하지 않는다는 이점이 있다. Accordingly, the outsole formed as described above is assembled with the finished upper according to the characteristics of each work type to complete the final dustproofing, and the completed dustproofing is advantageous in that light dust and wear dust do not occur at the same time.
이하 본 발명의 실시예를 상세히 설명하기로 하며 본 발명은 아래의 실시예의 변형가능한 부분까지 포함하는 것으로 본 발명이 실시예에 한정되는 것은 아니다. Hereinafter, the embodiments of the present invention will be described in detail, and the present invention is not limited to the embodiments as it includes modifications of the following embodiments.
본 발명의 핵심은 신발을 구성하는 아웃솔에 관한 것인바 아웃솔에 대하여 상세하게 설명하기로 한다. The core of the present invention relates to the outsole constituting the shoe bar will be described in detail with respect to the outsole.
본 발명의 아웃솔은 가벼운 재질의 에틸렌 비닐 아세테이트(EVA)를 주기재로 하고 여기에 가교제, 발포제, 충전제 및 전도성 고분자 첨가제 등을 첨가하여 컴파운드 조성물을 형성시킨 다음 컴파운드 조성물을 발포시킴에 의해 아웃솔을 형성시키며, 주기재를 에틸렌 비닐 아세테이트와 폴리올레핀을 혼합하여 사용하기도 한다.The outsole of the present invention is made of lightweight ethylene vinyl acetate (EVA) as a base material, and a crosslinking agent, a foaming agent, a filler, a conductive polymer additive, and the like are added to form a compound composition, followed by foaming the compound composition to form an outsole. In addition, the base material may be a mixture of ethylene vinyl acetate and polyolefin.
이하 본 발명의 실시예를 상세히 설명한다. Hereinafter, embodiments of the present invention will be described in detail.
먼저 본 발명의 컴파운드 조성물을 형성하여야 하는바, 주기재로써 에틸렌비닐 아세테이트(EVA) 67 중량부에 대하여 폴리올레핀수지 32 중량부를 혼합하고, 가교제로서 유기과산화물인 디쿠밀페록사이드(dicumyl peroxide, DCP) 0.75 중량부를 혼합하고, 발포제로는 아조디카본아마이드(azodicarbonamide)계열의 발포제를 6 중량부 혼합하고, 충전제인 이산화 티탄(TiO2)를 7.5 중량부 혼합하고, 발포 및 가교분해를 촉진하기 위한 기본첨가제로서 산화아연(ZnO) 3 중량부와 스테아르산 1.5 중량부를 혼합하고, 전도성 고분자 첨가제로는 폴리아날린(Polyaniline), 폴리파이롤(polypyrrole), 폴리티오핀(polythiophene) 등을 사용하였으며 이를 약 3.5 중량 부 혼합하여 사용하였다. 상기의 과정을 통하여 컴파운드 조성물이 형성된다. First, the compound composition of the present invention should be formed, and 32 parts by weight of polyolefin resin is mixed with 67 parts by weight of ethylene vinyl acetate (EVA) as a base material, and dicumyl peroxide (DCP) 0.75 which is an organic peroxide as a crosslinking agent. By weight of the mixture, as a blowing agent, 6 parts by weight of azodicarbonamide-based blowing agent is mixed, 7.5 parts by weight of titanium dioxide (TiO 2 ) filler is mixed, and a basic additive for promoting foaming and crosslinking decomposition. 3 parts by weight of zinc oxide (ZnO) and 1.5 parts by weight of stearic acid were mixed, and polyaniline, polypyrrole, polythiophene, and the like were used as conductive polymer additives. Partial mixing was used. The compound composition is formed through the above process.
다음은 상기 컴파운드 조성물을 발포시켜 아웃솔을 형성시키는 발포과정이 진행되는바, 먼저 컴파운드 조성물을 시트상으로 형성시킨다. Next, a foaming process of foaming the compound composition to form an outsole is performed. First, the compound composition is formed into a sheet.
다음은 시트상으로 형성된 성형물을 금형안에 투입한 후 프레스기를 이용하여 고온,가압하에서 20~30분간 가공하여 가교제와 발포제를 분해시킨 다음, 금형을 순간적으로 열어 압력을 제거함으로써 압력의 차이를 이용하여 급팽창시키는 1차 프레스 공정을 거쳐 연질의 독립기포 구조를 갖는 1차 발포체를 형성시킨다. Next, after inserting the molded product formed into a sheet into a mold, processing it for 20-30 minutes under high temperature and pressure using a press machine to decompose the crosslinking agent and the foaming agent, and then open the mold instantaneously to remove the pressure. The primary foam having a flexible independent bubble structure is formed through a primary expansion process of rapid expansion.
상기 1차 발포체는 최종 성형에 적절한 규격의 일정한 두께와 크기로 절단된 다음 트리밍(trimming)과 그라인딩(grinding)의 공정을 거친 후 최종 성형 형태의 금형에 재차 넣어 150~160℃에서 5~20분간 고온 프레싱을 하고 다시 10~20℃ 정도의 저온에서 10~20분간 냉각시킨 후, 탈형하여 신발용 아웃솔을 완성시킨다. The primary foam is cut to a certain thickness and size of the standard suitable for the final molding, then trimming and grinding and then put back into the final molding mold for 5 to 20 minutes at 150 ~ 160 ℃ After pressing high temperature and cooling again for 10 to 20 minutes at a low temperature of about 10 to 20 ℃, demolded to complete the shoe outsole.
상기에서 완성된 아웃솔을 각 작업형태의 특성에 맞추어 완성된 갑피(upper)와 함께 조립하여 최종 도전용 신발인 방진화를 완성하게 된다. The completed outsole is assembled with the finished upper according to the characteristics of each work type to complete the dustproof shoes, which are the final conductive shoes.
상기에서 형성된 아웃솔에 대하여 물성조사를 하였는바, 이는 아래의 표1에 나타내었다. The physical properties of the outsole formed above were examined, which is shown in Table 1 below.
상기 표1에 나타난 바와 같이, 본 발명에 따른 도전성 아웃솔의 저항은 약 107 ohm/sq로 나타나며 이는 정전기를 방전하는 소산성 신발로서의 기능이 우수함을 알 수 있다. As shown in Table 1, the resistance of the conductive outsole according to the present invention is represented by about 10 7 ohm / sq, which can be seen that the function as a dissipative shoe to discharge static electricity.
본 발명의 실시예에서 폴리올레핀을 주기재의 하나로 선택하여 유기과산화물 등을 이용하여 가교시킴에 의해 에틸렌비닐아세테이트(EVA)만을 주기재로 이용할 때보다는 열적 특성, 내충격성, 내마모성 등의 기계적 특성이 향상되는 것을 알 수 있었으며, 이는 폴리올레핀의 성질과 일치함을 알 수 있었다.In the embodiment of the present invention, by selecting a polyolefin as one of the base materials and crosslinking using an organic peroxide, etc., mechanical properties such as thermal properties, impact resistance, and abrasion resistance are improved than when only ethylene vinyl acetate (EVA) is used as the base material. It was found that this is consistent with the properties of the polyolefin.
상기의 구성에 의한 본 발명은 에틸렌비닐아세테이드(EVA)를 주기재의 하나로 하고 여기에 전도성 고분자 첨가제를 첨가하여 발포시켜 아웃솔을 형성함에 의해 가볍고, 방진효과가 우수하며, 마모에 의해 분진이 발생하지 않는다는 효과가 있다. The present invention by the above configuration is made of ethylene vinyl acetate (EVA) as one of the main materials, and by adding a conductive polymer additive to the foam to form an outsole to form a light weight, excellent dustproof effect, dust generated by wear There is no effect.
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| KR1020050109856A KR100747084B1 (en) | 2005-11-16 | 2005-11-16 | dustproof shoe with electric conducting outsole |
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| KR1020050109856A KR100747084B1 (en) | 2005-11-16 | 2005-11-16 | dustproof shoe with electric conducting outsole |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970073420A (en) * | 1997-09-19 | 1997-12-10 | 임성조 | Method of manufacturing a foamed midsole by placing a sealed box containing a foamable material in the mold |
| KR20000069017A (en) * | 1997-09-23 | 2000-11-25 | 베슬링 베른하르트 | Preparation of Fibers Containing Intrinsically Conductive Polymers |
| KR20020071668A (en) * | 2001-03-07 | 2002-09-13 | 차도석 | Indoor shoes for protecting static electricity |
| KR100358073B1 (en) | 1999-12-10 | 2002-10-25 | 김완수 | foam composition of polyolefin for shoes |
| KR200312672Y1 (en) | 2002-10-16 | 2003-05-14 | 김권형 | Structure of Outsole and Heel Material for Shoe |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970073420A (en) * | 1997-09-19 | 1997-12-10 | 임성조 | Method of manufacturing a foamed midsole by placing a sealed box containing a foamable material in the mold |
| KR20000069017A (en) * | 1997-09-23 | 2000-11-25 | 베슬링 베른하르트 | Preparation of Fibers Containing Intrinsically Conductive Polymers |
| KR100358073B1 (en) | 1999-12-10 | 2002-10-25 | 김완수 | foam composition of polyolefin for shoes |
| KR20020071668A (en) * | 2001-03-07 | 2002-09-13 | 차도석 | Indoor shoes for protecting static electricity |
| KR200312672Y1 (en) | 2002-10-16 | 2003-05-14 | 김권형 | Structure of Outsole and Heel Material for Shoe |
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