JPS5915967A - Manufacture of cleaning blade for electrophotographic copying machine - Google Patents

Manufacture of cleaning blade for electrophotographic copying machine

Info

Publication number
JPS5915967A
JPS5915967A JP12446382A JP12446382A JPS5915967A JP S5915967 A JPS5915967 A JP S5915967A JP 12446382 A JP12446382 A JP 12446382A JP 12446382 A JP12446382 A JP 12446382A JP S5915967 A JPS5915967 A JP S5915967A
Authority
JP
Japan
Prior art keywords
urethane
blade
cleaning blade
die
cleaning
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.)
Pending
Application number
JP12446382A
Other languages
Japanese (ja)
Inventor
Koichi Kubota
久保田　宏一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hokushin Industries Corp
Original Assignee
Hokushin Industries Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hokushin Industries Corp filed Critical Hokushin Industries Corp
Priority to JP12446382A priority Critical patent/JPS5915967A/en
Publication of JPS5915967A publication Critical patent/JPS5915967A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/0011—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a blade; Details of cleaning blades, e.g. blade shape, layer forming

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To raise abrasion resistance, a lubricating property and a cleaning property of a cleaning blade, by coating in advance silicon oil having active hydrogen in its terminal on the surface of a metal die, and thereafter, injecting liquid urethane into the die, to complete its reaction. CONSTITUTION:First of all, as the first stage, silicon oil having active hydrogen in its terminal is coated uniformly on the surface of a metal die to be used, and thereafter, liquid urethane which is blended so that hardness becomes JISA scale 60-90 is injected into the die, and the reaction is completed, by which a silicon oil containing layer which couples silicon atoms to the surface of urethane rubber. As for a blade obtained in this way, the silicon atom whose surface is coupled with a urethane radical gives a lubricating property to the blade itself, therefore, its friction is low and its durability is excellent.

Description

【発明の詳細な説明】 本願は電子写真複写機用のクリーニングブレードに関づ
る。DETAILED DESCRIPTION OF THE INVENTION This application relates to a cleaning blade for an electrophotographic copying machine.

電子写真機、特に普通紙を用いるいわゆるＰＰＣ複写機
において感光体のクリーニングという問題は重要な事で
あり、クリーニング方法のひとつにウレタンゴムあるい
はネオブレンゴム等の弾性ゴムブレードを電子写真感光
体に当接して感光体上の残留トナーを除去掃除する、い
わゆるクリーニングブレード方式が実用化ブレードを物
理的に接触させる為に、感光体表面との摩擦作用によっ
てブレードの先端が急速且つ不均一に摩耗し＠掃効果が
著るしく低下するという欠点が生じる。Cleaning the photoreceptor is an important issue in electrophotographic machines, especially so-called PPC copying machines that use plain paper, and one of the cleaning methods is to bring an elastic rubber blade such as urethane rubber or neoprene rubber into contact with the electrophotographic photoreceptor. The so-called cleaning blade method, which removes and cleans the residual toner on the photoconductor, has been put into practical use.Because the blade is in physical contact with the photoconductor surface, the tip of the blade wears rapidly and unevenly due to the frictional action with the photoconductor surface, resulting in @sweeping effect. The disadvantage is that the value is significantly reduced.

この様なブレードの不均一な摩耗が進むと、記録紙上に
ゴースト像が現われたり、糸線が現われたり、叉感−光
体表面を傷つけたりする事になる。If such uneven wear of the blade progresses, a ghost image or thread may appear on the recording paper, or the surface of the photoreceptor may be damaged.

従来この様な点を改良する為（種々工夫が為され、例え
ば現象剤中にテフロン等の潤滑性のある物質を外添した
り、あるいはクリーニングブレードの形成月利にテフロ
ン・シリコーンゴム等の活性のある月質を選択して成型
していたが充分なりリーニング効果を示しの４Ｊ見出Ｉ
ｉなかった。本願は上記欠点を改善したちので耐摩耗性
・潤滑性・クリーニング性を著しく向上させ繰返し使用
において半永久的に良好な画像の得られるクリーニング
ブレードを提供する事を目的としており、まず第１段と
して、使用金型表面に均一に末端に活性水素を有づるシ
リコーンオイル、例えば合した液状ウレタンを型内に注
入し、反応を完成させる事によりウレタンゴム表面にシ
リコーン原子を結合させたシリコーンオイル含有層と形
成づる事を特徴としている。In the past, various efforts have been made to improve this point (for example, adding lubricating substances such as Teflon to the phenomenon agent, or adding active materials such as Teflon or silicone rubber to the cleaning blade formation process). 4J Heading I selected a certain moon quality and molded it, but it showed a sufficient leaning effect.
i didn't. The purpose of the present application is to improve the above-mentioned drawbacks and to provide a cleaning blade that has significantly improved wear resistance, lubricity, and cleaning performance, and can provide semi-permanently good images even after repeated use. , A silicone oil-containing layer in which silicone atoms are bonded to the urethane rubber surface by uniformly injecting a silicone oil with active hydrogen terminals onto the surface of the mold used, such as combined liquid urethane, into the mold and completing the reaction. It is characterized by the formation of

本願発明によるブレードは、表面がウレタン基に結合し
たシリコーン原子がブレード自体に滑性を与えるため低
摩擦であり耐久性がすぐれている。The blade according to the present invention has low friction and excellent durability because the silicone atoms bonded to the urethane group on the surface give the blade itself lubricity.

以下実地例を下記する。A practical example is given below.

７０℃に加熱した注型用金型内面にシリコーンオイル東
しく株）　ｓｆ８４２７を均一に塗布し／、：４６、配
合がエヂレングリコールとアジピン酸の綜合ポリエステ
ル日本ポリウレタン（株）ニツポラン４０４１１００重
量部 １．５プノチレンジイソシアネ−［・１８１．４ブタン
ジＡ−ル　　　　　　　　　２て行程として脱水したポ
リエステルに１．５ナフチレンジイソシアネー１〜を混
合し、８０℃、６０分て反応さけ、生成したブレボッマ
ーに硬化剤である１、４ブタンジオールを混入した液状
ウレタンを前記型に注入し反応を完成させる。Silicone oil (Toshishiku Co., Ltd.) sf8427 was uniformly applied to the inner surface of the casting mold heated to 70°C/:46, a synthetic polyester of ethylene glycol and adipic acid, Nippon Polyurethane Co., Ltd., 100 parts by weight, Nipporan 4041, 100 parts by weight. Brebommer was produced by mixing 1 to 1.5 naphthylene diisocyanate to the dehydrated polyester in two steps and reacting at 80°C for 60 minutes. Then, liquid urethane mixed with 1,4-butanediol, which is a curing agent, is poured into the mold to complete the reaction.

その後脱型し所要寸法に仕上げる事によりブレードを生
成づる。After that, the blade is produced by removing the mold and finishing it to the required dimensions.

前記実地例てＭ３Ａｉしたクリーニングブレードをセレ
ン亦イ検光体ドラム及び通常使用されている系のドブー
ーを含む乾式現象剤を使用しＣカールソンプロセスで繰
返し画像出しをしてブレードのクリーニング特性及び耐
久性を試験したウレタ＞基に結合したシリコン原子がブ
レード自体に滑性を与えるためドラムの６万回時でもブ
レード先端部の摩耗は発生ぜずクリーニング特性は初期
の状態を維持していた。In the above practical example, the M3Ai cleaning blade was repeatedly imaged using the C. Carlson process using a selenium-rich analyzer drum and a commonly used dry phenomenon agent containing Deboux to test the cleaning characteristics and durability of the blade. Since the silicon atoms bonded to the urethane groups that were tested gave the blade itself lubricity, no wear occurred at the tip of the blade even after 60,000 drum cycles, and the cleaning properties maintained their initial state.

Claims (1)

【特許請求の範囲】[Claims] 電子写真感光体表面を摺擦して感光体表面を清掃づるウ
レタン弾性体から成るクリーニングブレードの製造方法
において、第１段として金型表面に末端に活性水素を有
するシリコーンオイルを塗布しておき、その後液状ウレ
タンを型内に注入し、反応を完成さける事により、ウレ
タンゴム表面にシリコーン原子を結合さゼたシリコーン
オイル含有層を形成覆る事を特徴とづる電子写真複写機
用クリーニングブレードの製造方法。In a method for manufacturing a cleaning blade made of a urethane elastic material that cleans the surface of an electrophotographic photoreceptor by rubbing the surface of the photoreceptor, as a first step, a silicone oil having an active hydrogen terminal is applied to the surface of the mold; A method for producing a cleaning blade for an electrophotographic copying machine, characterized in that liquid urethane is then injected into the mold and the reaction is completed, thereby forming and covering the urethane rubber surface with a layer containing silicone oil in which silicone atoms are bonded. .
JP12446382A 1982-07-19 1982-07-19 Manufacture of cleaning blade for electrophotographic copying machine Pending JPS5915967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12446382A JPS5915967A (en) 1982-07-19 1982-07-19 Manufacture of cleaning blade for electrophotographic copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12446382A JPS5915967A (en) 1982-07-19 1982-07-19 Manufacture of cleaning blade for electrophotographic copying machine

Publications (1)

Publication Number Publication Date
JPS5915967A true JPS5915967A (en) 1984-01-27

Family

ID=14886140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12446382A Pending JPS5915967A (en) 1982-07-19 1982-07-19 Manufacture of cleaning blade for electrophotographic copying machine

Country Status (1)

Country Link
JP (1) JPS5915967A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60165683A (en) * 1984-02-09 1985-08-28 Tokai Rubber Ind Ltd Cleaning blade
JPS60135762U (en) * 1984-02-21 1985-09-09 株式会社　荒井製作所 Cleaning blade for copy machine
JPS63253980A (en) * 1987-04-10 1988-10-20 Canon Inc Cleaning blade
US5323217A (en) * 1993-03-22 1994-06-21 Moore Business Forms, Inc. Ion deposition printer cleaning apparatus and related method
US5957847A (en) * 1996-01-23 1999-09-28 Minakuchi; Yoshihisa Method and apparatus for detecting foreign bodies in the medullary cavity

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60165683A (en) * 1984-02-09 1985-08-28 Tokai Rubber Ind Ltd Cleaning blade
JPS60135762U (en) * 1984-02-21 1985-09-09 株式会社　荒井製作所 Cleaning blade for copy machine
JPS63253980A (en) * 1987-04-10 1988-10-20 Canon Inc Cleaning blade
US5323217A (en) * 1993-03-22 1994-06-21 Moore Business Forms, Inc. Ion deposition printer cleaning apparatus and related method
US5957847A (en) * 1996-01-23 1999-09-28 Minakuchi; Yoshihisa Method and apparatus for detecting foreign bodies in the medullary cavity

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