JP5246572B2 - 殺菌性銅素材、及び銅素材を用いた殺菌方法 - Google Patents
殺菌性銅素材、及び銅素材を用いた殺菌方法 Download PDFInfo
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- JP5246572B2 JP5246572B2 JP2008093855A JP2008093855A JP5246572B2 JP 5246572 B2 JP5246572 B2 JP 5246572B2 JP 2008093855 A JP2008093855 A JP 2008093855A JP 2008093855 A JP2008093855 A JP 2008093855A JP 5246572 B2 JP5246572 B2 JP 5246572B2
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- wire
- copper
- copper material
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- bactericidal
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 49
- 230000001954 sterilising effect Effects 0.000 title claims description 30
- 239000010949 copper Substances 0.000 title claims description 29
- 229910052802 copper Inorganic materials 0.000 title claims description 28
- 238000004659 sterilization and disinfection Methods 0.000 title claims description 20
- 239000000463 material Substances 0.000 title claims description 19
- 230000000844 anti-bacterial effect Effects 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 12
- 241000894006 Bacteria Species 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 238000010622 cold drawing Methods 0.000 claims description 6
- 238000005491 wire drawing Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 description 30
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 19
- 229910001431 copper ion Inorganic materials 0.000 description 19
- 238000012545 processing Methods 0.000 description 16
- 238000010828 elution Methods 0.000 description 14
- 238000005482 strain hardening Methods 0.000 description 11
- 230000007547 defect Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 230000001580 bacterial effect Effects 0.000 description 6
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 229910021642 ultra pure water Inorganic materials 0.000 description 2
- 239000012498 ultrapure water Substances 0.000 description 2
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Description
そこで、線径900μmの電気用軟銅線(JIS C3102)を線径30μmまで冷間線引き加工した線材(30C)と、この線引き加工した線材を窒素雰囲気中にて300℃で30分間熱処理し、その後室温まで自然冷却した線材(30A)と、一般市販の電気用軟銅線(30N)との3種類の線材を用いて、殺菌試験を行った。なお、線材30Cは、冷間加工後の熱処理は施しておらず、冷間加工を施したままの線材である。
R(T)=αT-5+R0 ・・・ (1)
R(T)=βT ・・・ (2)
ここで、上記(1),(2)式におけるα、βは温度に依存しない比例係数である。
一般市販の線径160μmの電気用軟銅線(JIS C3102)を、伸線機にて線径140,120,100,80,65μmに冷間線引き加工し、試験に用いる線材を得た。得られた線材には、冷間加工後の熱処理は施していない。つまり、各線材は、冷間加工を施したままの状態である。各線材の特性を表3に示す。表3における加工率とは、線径160μmの電気用軟銅線との断面積比である。なお、以下では、線径160μmの電気用軟銅線を160N、及び線引き加工が施された線径140,120,100,80,65μmの各線材を、それぞれ140C,120C,100C,80C,65Cと称する。
Claims (4)
- 殺菌用として用いられる殺菌性銅素材であって、
293Kにおける電気抵抗と絶対零度における電気抵抗との比である残留抵抗比が50以下となるように冷間線引き加工が施され、冷間線引き加工後の熱処理が施されないことを特徴とする殺菌性銅素材。 - 殺菌対象は、液体であることを特徴とする請求項1に記載の殺菌性銅素材。
- 前記残留抵抗比が40以下であることを特徴とする請求項1又は請求項2に記載の殺菌性銅素材。
- 293Kにおける電気抵抗と絶対零度における電気抵抗との比である残留抵抗比が50以下となるように冷間線引き加工が施され、冷間線引き加工後の熱処理が施されない銅素材を、液体に接触させて液体中の菌を殺菌することを特徴とする銅素材を用いた殺菌方法。
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JP2008093855A JP5246572B2 (ja) | 2008-03-31 | 2008-03-31 | 殺菌性銅素材、及び銅素材を用いた殺菌方法 |
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JP2009242351A JP2009242351A (ja) | 2009-10-22 |
JP5246572B2 true JP5246572B2 (ja) | 2013-07-24 |
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Cited By (1)
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JP7290192B2 (ja) | 2018-07-23 | 2023-06-13 | 京セラドキュメントソリューションズ株式会社 | 画像形成装置 |
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JP4581027B1 (ja) * | 2009-10-19 | 2010-11-17 | コデラカプロン株式会社 | マスクフィルター及びその製造方法、マスクフィルター用ポケット並びにマスク |
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JPS6342790A (ja) * | 1986-08-07 | 1988-02-23 | Nippon Yoki Kogyo Kk | 水道水の消毒法 |
JP2002316011A (ja) * | 2001-04-24 | 2002-10-29 | Showa Electric Wire & Cable Co Ltd | 銅銀合金を用いた抗菌性フィルタ |
US8522585B1 (en) * | 2006-05-23 | 2013-09-03 | Pmx Industries Inc. | Methods of maintaining and using a high concentration of dissolved copper on the surface of a useful article |
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Cited By (1)
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JP7290192B2 (ja) | 2018-07-23 | 2023-06-13 | 京セラドキュメントソリューションズ株式会社 | 画像形成装置 |
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