JP4458943B2 - 帯電ローラ及びそれを備えた画像形成装置 - Google Patents
帯電ローラ及びそれを備えた画像形成装置 Download PDFInfo
- Publication number
- JP4458943B2 JP4458943B2 JP2004172322A JP2004172322A JP4458943B2 JP 4458943 B2 JP4458943 B2 JP 4458943B2 JP 2004172322 A JP2004172322 A JP 2004172322A JP 2004172322 A JP2004172322 A JP 2004172322A JP 4458943 B2 JP4458943 B2 JP 4458943B2
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- Prior art keywords
- resin
- charging roller
- compound
- silicon
- coating layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 229920005989 resin Polymers 0.000 claims description 163
- 239000011347 resin Substances 0.000 claims description 163
- 239000011247 coating layer Substances 0.000 claims description 73
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 71
- 150000001875 compounds Chemical class 0.000 claims description 71
- 229910052710 silicon Inorganic materials 0.000 claims description 71
- 239000010703 silicon Substances 0.000 claims description 71
- 239000010410 layer Substances 0.000 claims description 49
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- 238000000576 coating method Methods 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 25
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 239000000178 monomer Substances 0.000 claims description 10
- 239000003999 initiator Substances 0.000 claims description 8
- 229920002050 silicone resin Polymers 0.000 claims description 7
- 239000004925 Acrylic resin Substances 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims description 3
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- 239000006258 conductive agent Substances 0.000 description 25
- 229920001971 elastomer Polymers 0.000 description 21
- 239000000203 mixture Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 15
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
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- 239000000654 additive Substances 0.000 description 3
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- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical class C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
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- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
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- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000006237 Intermediate SAF Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
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- 235000021355 Stearic acid Nutrition 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
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- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 2
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- LFOXEOLGJPJZAA-UHFFFAOYSA-N [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone Chemical compound COC1=CC=CC(OC)=C1C(=O)P(=O)(CC(C)CC(C)(C)C)C(=O)C1=C(OC)C=CC=C1OC LFOXEOLGJPJZAA-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- GUCYFKSBFREPBC-UHFFFAOYSA-N [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C(=O)C1=C(C)C=C(C)C=C1C GUCYFKSBFREPBC-UHFFFAOYSA-N 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007112 amidation reaction Methods 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 150000008366 benzophenones Chemical class 0.000 description 1
- YOUGRGFIHBUKRS-UHFFFAOYSA-N benzyl(trimethyl)azanium Chemical compound C[N+](C)(C)CC1=CC=CC=C1 YOUGRGFIHBUKRS-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- ZLSMCQSGRWNEGX-UHFFFAOYSA-N bis(4-aminophenyl)methanone Chemical compound C1=CC(N)=CC=C1C(=O)C1=CC=C(N)C=C1 ZLSMCQSGRWNEGX-UHFFFAOYSA-N 0.000 description 1
- 239000004067 bulking agent Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- RLGQACBPNDBWTB-UHFFFAOYSA-N cetyltrimethylammonium ion Chemical compound CCCCCCCCCCCCCCCC[N+](C)(C)C RLGQACBPNDBWTB-UHFFFAOYSA-N 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- OSXYHAQZDCICNX-UHFFFAOYSA-N dichloro(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](Cl)(Cl)C1=CC=CC=C1 OSXYHAQZDCICNX-UHFFFAOYSA-N 0.000 description 1
- 238000007607 die coating method Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 1
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- VICYBMUVWHJEFT-UHFFFAOYSA-N dodecyltrimethylammonium ion Chemical compound CCCCCCCCCCCC[N+](C)(C)C VICYBMUVWHJEFT-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 150000005452 ethyl sulfates Chemical class 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- ICIWUVCWSCSTAQ-UHFFFAOYSA-M iodate Chemical compound [O-]I(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-M 0.000 description 1
- ICIWUVCWSCSTAQ-UHFFFAOYSA-N iodic acid Chemical class OI(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-N 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 239000005055 methyl trichlorosilane Substances 0.000 description 1
- 125000002816 methylsulfanyl group Chemical group [H]C([H])([H])S[*] 0.000 description 1
- JLUFWMXJHAVVNN-UHFFFAOYSA-N methyltrichlorosilane Chemical compound C[Si](Cl)(Cl)Cl JLUFWMXJHAVVNN-UHFFFAOYSA-N 0.000 description 1
- DAZXVJBJRMWXJP-UHFFFAOYSA-N n,n-dimethylethylamine Chemical compound CCN(C)C DAZXVJBJRMWXJP-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 150000001367 organochlorosilanes Chemical class 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000005054 phenyltrichlorosilane Substances 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000909 polytetrahydrofuran Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010107 reaction injection moulding Methods 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 238000010058 rubber compounding Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- UQMOLLPKNHFRAC-UHFFFAOYSA-N tetrabutyl silicate Chemical compound CCCCO[Si](OCCCC)(OCCCC)OCCCC UQMOLLPKNHFRAC-UHFFFAOYSA-N 0.000 description 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical compound CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- ZQZCOBSUOFHDEE-UHFFFAOYSA-N tetrapropyl silicate Chemical compound CCCO[Si](OCCC)(OCCC)OCCC ZQZCOBSUOFHDEE-UHFFFAOYSA-N 0.000 description 1
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 description 1
- 229950006389 thiodiglycol Drugs 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- ORVMIVQULIKXCP-UHFFFAOYSA-N trichloro(phenyl)silane Chemical compound Cl[Si](Cl)(Cl)C1=CC=CC=C1 ORVMIVQULIKXCP-UHFFFAOYSA-N 0.000 description 1
- PPPHYGCRGMTZNA-UHFFFAOYSA-M trifluoromethyl sulfate Chemical compound [O-]S(=O)(=O)OC(F)(F)F PPPHYGCRGMTZNA-UHFFFAOYSA-M 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Rolls And Other Rotary Bodies (AREA)
Description
(式中、R1は、それぞれ独立して一価の炭化水素基であり、nは100〜10,000の整数である)で表される化合物が好ましい。ここで、R1における、一価の炭化水素基としては、メチル基、エチル基、プロピル基、ブチル基及びペンチル基等のアルキル基、ビニル基及びアリル基等のアルケニル基、シクロヘキシル基等のシクロアルキル基、フェニル基等のアリール基、ベンジル基等のアラルキル基等が挙げられる。
(式中、R2は、それぞれ独立して水素又は一価の炭化水素基であり、mは10〜1,000の整数である)で表され、分子中に2個以上のケイ素−水素結合を有する化合物が好ましい。ここで、R2における、一価の炭化水素基としては、メチル基、エチル基、プロピル基、ブチル基及びペンチル基等のアルキル基、ビニル基及びアリル基等のアルケニル基、シクロヘキシル基等のシクロアルキル基、フェニル基等のアリール基、ベンジル基等のアラルキル基等が挙げられる。
サンニックスFA952[三洋化成工業株式会社製ポリエーテルポリオール、OH価=37]100質量部、SRX274C[東レダウコーニングシリコーン株式会社製整泡剤]1質量部、TOYOCAT NP[東ソー株式会社製アミン触媒]2.8質量部、TOYOCAT EP[東ソー株式会社製アミン触媒]1.5質量部及びサンフォームIC-716[三洋化成株式会社トリレンジイソシアネート]59質量部を機械的に撹拌して発泡させた。
グリセリンにプロピレンオキサイドを付加した3官能で分子量9,000のポリエーテルポリオール100質量部に導電性カーボン1.6質量部とジブチル錫ジラウレート0.15質量部を加え十分に撹拌混合した後、減圧下で撹拌しながら20分間脱泡して、これをポリオール成分とした。ポリオール成分の水酸基価は19mgKOH/gであった。一方、NCO含有率が11%のポリプロピレングリコール変性ポリメリックMDIをイソシアネート成分として減圧下で撹拌しながら20分間脱泡して、これをイソシアネート成分とした。ポリオール成分とイソシアネート成分の比率が101.75/13.70(イソシアネートインデックス:103)の割合になるようにして2成分注型機にてポリオールとイソシアネートを3000rpmで高速撹拌混合し、混合したウレタン原液を外径寸法がφ6mmの芯金をセットした筒形状のモールド金型に注入し、90℃で60分間熱風循環オーブンにて加熱キュアーした。筒形状のモールドから芯金つきウレタン・ローラを取り出しローラを得た。上記ローラ本体の外周面に表1に示す配合の塗工液を用いて樹脂被覆層を形成する以外は実施例1と同様にして帯電ローラを製造した。得られた帯電ローラの物性及び性能を表1に示す。
ムーニー粘度ML1+4(100℃)が70のNipol IR2200L(日本ゼオン製)100質量部、平均分子量29000のLIR-30(クラレ製)60質量部、カーボンブラックTB#5500(東海カーボン製)28質量部、亜鉛華5質量部、ステアリン酸1質量部、パーヘキサC-40(日本油脂製)9質量部を55Lニーダーを用いて混錬し、ゴム組成物を準備した。接着剤を付けた外径寸法φ6mmの芯金にゴム組成物を三葉製作所のクロスヘッド式押し出し機を用いて円筒状に押し出し未加硫ゴム/芯金一体成型物を得た。これを円筒状の金型内にセットし、3.2×106Paの圧力をかけ175℃で20分間、加硫を行った。割り金型の圧力を開放し、ゴムローラを得、さらに180℃のオーブン中で4時間加硫を行った。得られたローラを回転砥石によりφ12mmの径にプランジ式研磨を行い、ゴムローラを得た。上記ローラ本体の外周面に表1に示す配合の塗工液を用いて樹脂被覆層を形成する以外は実施例1と同様にして帯電ローラを製造した。得られた帯電ローラの物性及び性能を表1に示す。
ヨウ素価が36、ムーニー粘度ML1+4(100℃)が39のEPDM100質量部に対してカーボンブラックTB#5500(東海カーボン製)50質量部、炭酸カルシウムとしてノーベライトA(日本粉化工業製)36質量部、ダイアナプロセスオイルPW90(出光興産製)60質量部、亜鉛華3質量部、ステアリン酸2質量部、加硫促進剤2-メルカプトチアゾール1質量部、硫黄1.5質量部、発泡剤ネオセルボンN#1000M(永和化成工業製)6質量部を55Lニーダーを用いて混錬し、発泡ゴム組成物を準備した。接着剤を付けた外径寸法φ6mmの芯金に発泡ゴム組成物を三葉製作所のクロスヘッド式押し出し機を用いて円筒状に押し出し未加硫ゴム/芯金一体成型物を得た。これを円筒状の金型内にセットし、3.2×106Paの圧力をかけ175℃で20分間、加硫・発泡を行った。割り金型の圧力を開放し、スキン層付きの発泡ゴムローラを得、さらに180℃のオーブン中で4時間加硫を行った。得られたローラを回転砥石によりφ12mmの径にプランジ式研磨を行い、発泡ゴムローラを得た。上記ローラ本体の外周面に表1に示す配合の塗工液を用いて樹脂被覆層を形成する以外は実施例1と同様にして帯電ローラを製造した。得られた帯電ローラの物性及び性能を表1に示す。
液状シリコーンLIM液#2090(東レ・ダウコーニング・シリコーン製)を撹拌脱泡したのち、外径寸法がφ6mmの芯金をセットした筒形状のモールド金型に注入し、120℃で30分間熱風循環オーブンにて加熱キュアーした。筒形状のモールドから芯金つきローラを取り出し、200℃で4時間熱風循環オーブンにて加熱キュアーしローラを得た。上記ローラ本体の外周面に表1に示す配合の塗工液を用いて樹脂被覆層を形成する以外は実施例1と同様にして帯電ローラを製造した。得られた帯電ローラの物性及び性能を表1に示す。
表2に示す配合の塗工液を用いて樹脂被覆層を形成する以外は実施例1と同様にして帯電ローラを製造した。得られた帯電ローラの物性及び性能を表1に示す。
表2に示す配合の塗工液を用いて樹脂被覆層を形成する以外は実施例1と同様にして帯電ローラを製造した。得られた帯電ローラの物性及び性能を表2に示す。
実施例1で作製したウレタンフォームからなる弾性層を備えたローラ本体上にUR8401(東洋紡製)100質量部、コロネートHX(日本ポリウレタン製)5質量部、カーボンブラックPrintex35(デグッサ製)25質量部、MEK(メチルエチルケトン)100質量部からなる塗料を50μmの厚さに塗布した後100℃で1時間加熱硬化した。得られたローラに表2に示す配合の塗工液を用いて樹脂被覆層を形成し帯電ローラを製造した。得られた帯電ローラの物性及び性能を表2に示す。
表2に示す配合の塗工液を用いて樹脂被覆層を形成する以外は実施例1と同様にして帯電ローラを製造した。得られた帯電ローラの物性及び性能を表2に示す。
表2に示す配合の塗工液を用いて樹脂被覆層を形成する以外は実施例3と同様にして帯電ローラを製造した。得られた帯電ローラの物性及び性能を表2に示す。
(1)画像評価
画像形成装置:市販レーザープリンター
カートリッジ色:シアン
(2)表面粗さ
サーフコム590A(東京精密製)
(3)抵抗値
R8340A ULTRA HIGH RESISTANCE METER (ADVANTEST製)
測定条件:シャフトとローラ表面間の印加電圧100V
ローラ両端に500gの荷重をかけ静止状態で測定
2 シャフト
3 弾性層
4 樹脂被覆層
5 感光ドラム
6 トナー
7 トナー供給ローラ
8 現像ローラ
9 成層ブレード
10 転写ローラ
11 クリーニング部
12 クリーニングブレード
Claims (6)
- シャフトと、該シャフトの外周に形成された弾性層と、該弾性層の外周面に形成された少なくとも一層の紫外線により硬化された紫外線硬化型樹脂を含む樹脂被覆層とを備えた帯電ローラにおいて、
前記樹脂被覆層が更に非紫外線硬化型のケイ素含有樹脂及び/又は化合物を含み、該樹脂被覆層が非紫外線硬化型のケイ素含有樹脂及び/又は化合物と、紫外線により重合可能でケイ素を含まない樹脂及び/又は化合物とを含む塗工液を前記弾性層の外周面に塗布した後、紫外線照射により前記紫外線により重合可能でケイ素を含まない樹脂及び/又は化合物を硬化させてなる
ことを特徴とする帯電ローラ。 - 前記非紫外線硬化型のケイ素含有樹脂及び/又は化合物が、ケイ素含有(メタ)アクリレート系樹脂及び化合物、並びにシリコーン樹脂からなる群から選択される少なくとも一種であることを特徴とする請求項1に記載の帯電ローラ。
- 前記塗工液が光重合開始剤を含むことを特徴とする請求項1に記載の帯電ローラ。
- 前記紫外線により重合可能でケイ素を含まない樹脂及び/又は化合物が、紫外線により重合可能な炭素原子間二重結合を有する樹脂及び/又は化合物であることを特徴とする請求項1に記載の帯電ローラ。
- 前記紫外線により重合可能な炭素原子間二重結合を有し且つケイ素を含まない樹脂及び/又は化合物が、(メタ)アクリレートモノマー及び/又はオリゴマーであることを特徴とする請求項4に記載の帯電ローラ。
- 請求項1〜5のいずれかに記載の帯電ローラを備えた画像形成装置。
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PCT/JP2005/010505 WO2006001171A1 (ja) | 2004-06-09 | 2005-06-08 | 現像ローラ、帯電ローラ、導電性ローラ及びその製造方法 |
US11/629,085 US8376922B2 (en) | 2004-06-09 | 2005-06-08 | Developing roller, charging roller, conductive roller and method for producing the same |
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