JP2011053680A - 可撓性画像形成部材ベルト - Google Patents
可撓性画像形成部材ベルト Download PDFInfo
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- JP2011053680A JP2011053680A JP2010190524A JP2010190524A JP2011053680A JP 2011053680 A JP2011053680 A JP 2011053680A JP 2010190524 A JP2010190524 A JP 2010190524A JP 2010190524 A JP2010190524 A JP 2010190524A JP 2011053680 A JP2011053680 A JP 2011053680A
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- G03G5/14—Inert intermediate or cover layers for charge-receiving layers
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- G03G5/14708—Cover layers comprising organic material
- G03G5/14713—Macromolecular material
- G03G5/14747—Macromolecular material obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G5/14756—Polycarbonates
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/14—Inert intermediate or cover layers for charge-receiving layers
- G03G5/147—Cover layers
- G03G5/14708—Cover layers comprising organic material
- G03G5/14713—Macromolecular material
- G03G5/14747—Macromolecular material obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G5/1476—Other polycondensates comprising oxygen atoms in the main chain; Phenol resins
Abstract
【解決手段】基材10と、基材10上に配置された電荷発生層18と、電荷発生層18上に配置された少なくとも1種の電荷輸送層20と、を備え、電荷輸送層20が、電荷輸送成分と、可塑剤化合物で可塑化されるポリカーボネート結合剤とを含む二元固溶体から形成されてなる。電荷輸送層20が特定の可塑剤化合物を有することにより、カール防止バックコーティング層が不要となる。
【選択図】図2A
Description
および下記分子構造を有する式(B):
画像形成部材電荷輸送層可塑化用途に選択されるフタル酸ジメチルは、下式(I)の分子構造で示される。
また、他の可塑化剤候補もまた電荷輸送層に組み込むために用いてもよい。そのような候補としては、下記分子構造式(1)によって表されるビスフェノールAカーボネート液の芳香族モノマーが挙げられる。
カール防止バックコーティングを含まない画像形成部材の製造に関して電荷輸送層を可塑化するという意図した結果を得るために、2種の液候補がまた本開示用途のために挙げられ、それらは下記に記されている。
図1に示した従来の可撓性電子写真画像形成部材ウェブは、厚さ3.5ミル(約89マイクロメートル)の二軸延伸ポリエチレンナフタレート基材(KADALEX、デュポン・テイジン・フィルムズ(DuPont Teijin Films)から入手可能)の基材上に0.02マイクロメートル厚のチタンコーティング層を提供することにより調製した。チタン処理したKADALEX基材を、6.5gのγアミノプロピルトリエトキシシラン、39.4gの蒸留水、2.08gの酢酸、752.2gの200プルーフ変性アルコ−ルおよび200gのヘプタンの混合物を含有する遮断層溶液で押出コーティングした。その後、この湿ったコーティング層を強制空気炉において135℃で5分間乾燥させ、そのコーティングから溶媒を除去し、架橋シラン遮断層を形成した。得られた遮断層は、平均乾燥厚さ0.04マイクロメートルを有すると偏光解析器で測定された。
図2Aに示したような3つの可撓性電子写真画像形成部材ウェブを、対照例Iにおいて記載したものと全く同じ材料組成を用い、同一の手法に従って調製した。ただし、カール防止バックコーティングを排除し、これらの画像形成部材ウェブの単一電荷輸送層を各々、電荷輸送層のMAKROLONと電荷輸送化合物を合わせた重量に対して5重量%、8重量%、および12重量%のフタル酸ジメチル液(シグマ−アルドリッチ社(Sigma-Aldrich Corporation)から入手可能)を組み込むことにより可塑化した。フタル酸ジメチルの分子構造は、下式(I)によって示される。
図2Bに示すような3つのカール防止バックコーティングを含まない可撓性電子写真画像形成部材ウェブも、開示例Iにおいて記載したものと全く同じ材料組成を用い、同一の手法に従って調製した。ただし、カール防止バックコーティングを排除し、これらの画像形成部材ウェブの単一電荷輸送層に各々、MAKROLONと電荷輸送化合物を合わせた重量に対して5重量%、8重量%、および12重量%の別の可塑化液フタル酸ジエチル(シグマ−アルドリッチ社から入手可能)を組み込んだ。式(II)を有するフタル酸ジエチルを下記に表す。
図2Bに示すような3つのカール防止バックコーティングを含まない可撓性電子写真画像形成部材ウェブも、開示例Iにおいて記載したものと全く同じ材料組成を用い、同一の手法に従って調製した。ただし、カール防止バックコーティングを適用せず、これらの画像形成部材ウェブの単一電荷輸送層に各々、MAKROLONと電荷輸送化合物の合わせた重量に対して5重量%、8重量%、および12重量%の代替の可塑化液モノマービスフェノールAカーボネートを組み込んだ。使用した可塑化液モノマービスフェノールAカーボネート(ピーピージー・インダストリーズ社(PPG Industries,Inc)から入手可能)は、次式(1)で示される。
図3のもののような3つのカール防止バックコーティングを含まない可撓性電子写真画像形成部材ウェブも、開示例Iにおいて記載したものと全く同じ材料組成を用い、同一の手法に従って調製した。ただし、カール防止バックコーティングを適用せず、これらの画像形成部材ウェブの単一電荷輸送層に各々、フタル酸ジメチル(DMP)とモノマービスフェノールAカーボネート(MBC)からなる可塑剤混合物を組み込んだ。これらの可塑剤混合物を処方するために選択したDMPとMBCの重量%の比(DMP:MBC)は、MAKROLONとジアミンm−TBD電荷輸送化合物を合わせた重量に対して3%:10%、6%:10%および9%:10%とし、均一混合液を得た。
図3に示すような3つのカール防止バックコーティングを含まない可撓性電子写真画像形成部材ウェブも、開示例IVにおいて記載したものと全く同じ材料組成を用い、同一の手法に従って調製したが、ただし、これらの画像形成部材ウェブの単一電荷輸送層に各々、DEPとMBCからなる可塑剤混合物を組み込んだ。これらの可塑剤混合物を処方するために選択したDEP:MBCの重量%の比は、MAKROLONとジアミンm−TBD電荷輸送化合物を合わせた重量に対して3%:10%、6%:10%および9%:10%とし、均一混合液を得た。
図3に示すような1つのカール防止バックコーティングを含まない可撓性電子写真画像形成部材ウェブも、開示例IVにおいて記載したものと全く同じ材料組成を用い、同一の手法に従って調製した。ただし、この画像形成部材ウェブの単一電荷輸送層に、12重量%の、等量のMBCとオリゴマーのメチルスチレンダイマー(MSD)からなる可塑剤混合物を組み込んだ。これらの可塑剤混合物を処方するために選択したMBC:MSDの重量%の比は、MAKROLONとジアミンm−TBD電荷輸送化合物を合わせた重量に対して6%MBC:6%MSDとし、均一混合液を得た。
一般的な二重層の可撓性電子写真画像形成部材ウェブを、対照例Iにおいて記載したものと全く同じ材料、組成を用い、同一の手法に従うことにより調製した。ただし、単一電荷輸送層を、二重層:各々14.5マイクロメートルの厚さを有する下層および上層を有するように調製し;下層は、重量比で50:50のジアミン電荷輸送化合物およびポリカーボネート(MAKROLON)結合剤を含有し、一方、上層におけるこれらの重量比は30:50であった。カール防止バックコーティングの適用を省略したため、調製した画像形成部材ウェブは、二重電荷輸送層の塗布完了後1.5インチ(38.1mm)のロールに自然に上方へカールした。
図4に示したような2つのカール防止バックコーティングを含まない可撓性電子写真画像形成部材ウェブを、対照例Aにおいて記載したものと全く同じ材料組成を用い、同一の手法に従って調製した。ただし、二重電荷輸送層両方を、全く同じ量の式(I)のフタル酸ジメチルで可塑化した。二重層両方へのフタル酸ジメチルの組み込みは、第1および第2の画像形成部材について各々、電荷輸送層中のMAKROLONと電荷輸送化合物を合わせた重量に対して5重量%および8重量%とした。
2つのカール防止バックコーティングを含まない電子写真画像形成部材ウェブを、開示例Aにおいて記載したものと全く同じ材料組成を用い、同一の手法に従って調製した。ただし、二重電荷輸送層両方を全く同じ量の式(II)のフタル酸ジエチルで可塑化した。二重層両方へのフタル酸ジエチルの組み込みは、第1および第2の画像形成部材について各々、電荷輸送層中のMAKROLONと電荷輸送化合物を合わせた重量に対して5重量%および8重量%とした。
カール防止バックコーティングを含まない電子写真画像形成部材ウェブを、開示例Aにおいて記載したものと全く同じ材料組成を用い、同一の手法に従って調製した。ただし、二重電荷輸送層両方に、電荷輸送層中のMAKROLONと電荷輸送化合物を合わせた重量に対して8重量%の、等量のフタル酸ジメチル(DMP)とモノマービスフェノールAカーボネート(MBC)からなる可塑剤混合物を組み込んだ。
カール防止バックコーティングを含まない電子写真画像形成部材ウェブを、開示例Cにおいて記載したものと全く同じ材料組成を用い、同一の手法に従って調製したが、ただし、二重電荷輸送層両方に、電荷輸送層中のMAKROLONと電荷輸送化合物を合わせた重量に対して8重量%の、等量のDEPとMBCからなる可塑剤混合物を組み込んだ。
Claims (4)
- 可撓性基材と、
該基材上に配置された電荷発生層と、
前記電荷発生層上に配置された少なくとも1種の電荷輸送層と、
を備える可撓性画像形成部材であって、
前記電荷輸送層が、電荷輸送成分と、可塑剤化合物で可塑化されるポリカーボネート結合剤とを含む二元固溶体から形成され、前記可塑剤化合物が、
下記分子構造を有する式(I):
および下記分子構造を有する式(B):
さらに前記可撓性画像形成部材が、カール防止バックコーティング層を含まない、可撓性画像形成部材。 - 前記電荷輸送成分が、芳香族ポリアミン、芳香族ジアミン、ピラゾリン、およびそれらの混合物からなる群より選択される、請求項1に記載の画像形成部材。
- 前記可塑剤化合物が、前記電荷輸送層中に存在するポリカーボネートとN,N’−ジフェニル−N,N’−ビス(3−メチルフェニル)−[1,1’−ビフェニル]−4,4’−ジアミンを合わせた重量に対して約3重量%〜約30重量%の量で前記電荷輸送層中に存在する、請求項1に記載の画像形成部材。
- 前記ポリカーボネートが、前記電荷輸送層中のポリカーボネートとN,N’−ジフェニル−N,N’−ビス(3−メチルフェニル)−[1,1’−ビフェニル]−4,4’−ジアミンを合わせた重量の約30重量%〜約70重量%の量で前記電荷輸送層中に存在する、請求項1に記載の画像形成部材。
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JP2013161088A (ja) * | 2012-02-06 | 2013-08-19 | Xerox Corp | 可とう性画像化部材のための可塑化された湾曲防止背面コーティング |
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US20110053069A1 (en) | 2011-03-03 |
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EP2290449A1 (en) | 2011-03-02 |
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