JPH07319354A - Cleaning blade for electrophotographic device and its production - Google Patents
Cleaning blade for electrophotographic device and its productionInfo
- Publication number
- JPH07319354A JPH07319354A JP11110494A JP11110494A JPH07319354A JP H07319354 A JPH07319354 A JP H07319354A JP 11110494 A JP11110494 A JP 11110494A JP 11110494 A JP11110494 A JP 11110494A JP H07319354 A JPH07319354 A JP H07319354A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- blade
- support member
- cleaning blade
- blade member
- 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
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電子写真装置用クリー
ニングブレード及びその製造方法に関し、特に支持部材
に対するブレード部材の取付け対策に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning blade for an electrophotographic apparatus and a method for manufacturing the same, and more particularly to a measure for attaching the blade member to a supporting member.
【０００２】[0002]
【従来の技術】複写機、ファクシミリ、プリンター等の
電子写真装置は、表面に光導電体層を設けた感光体を有
する。複写の際、この感光体の外周面が一様に帯電せし
められ、次いで、被複写体の被複写像を介してその外周
面を露光することにより、上記外周面に静電潜像が形成
される。この静電潜像にトナーを付着させてトナー像を
形成し、これを複写紙等に転写することにより複写が行
われる。2. Description of the Related Art Electrophotographic devices such as copiers, facsimiles and printers have a photoconductor having a photoconductive layer provided on the surface thereof. During copying, the outer peripheral surface of the photoconductor is uniformly charged, and then the outer peripheral surface is exposed through the image to be copied of the object to be copied, whereby an electrostatic latent image is formed on the outer peripheral surface. It Toner is attached to the electrostatic latent image to form a toner image, and the toner image is transferred to a copy paper or the like to perform copying.
【０００３】上記複写後、感光体の外周上にはトナーが
一部残留するため、この残留トナーを除去する必要があ
る。この除去はクリーニングブレードにより行われ、該
クリーニングブレードは、通常、ウレタンエラストマー
を原料として遠心成形機にてウレタンシートを成形し、
このウレタンシートを予め所定形状に切断して矩形板状
のブレード部材を作り、このブレード部材を支持部材に
接着剤や両面テープ等によって接着することにより作ら
れる。また、上記ブレード部材の先端部は、クリーニン
グ機能に大きく関与する寸法精度に優れた稜線を形成す
るためにカットされる。After the above copying, a part of the toner remains on the outer periphery of the photoconductor, and it is necessary to remove this residual toner. This removal is performed by a cleaning blade, which is usually a urethane elastomer formed by a centrifugal molding machine using a urethane molding material,
This urethane sheet is preliminarily cut into a predetermined shape to form a rectangular plate-shaped blade member, and the blade member is bonded to a supporting member with an adhesive or a double-sided tape. Further, the tip end portion of the blade member is cut to form a ridge line excellent in dimensional accuracy that greatly contributes to the cleaning function.
【０００４】[0004]
【発明が解決しようとする課題】ところが、上述の如き
ブレード部材は、ウレタンエラストマーを原料として成
形されているため変形し易く、このような変形し易いブ
レード部材を支持部材に精度良く位置決めして接着する
のは非常に困難である。However, since the blade member as described above is formed by using urethane elastomer as a raw material, it is easily deformed, and such a deformable blade member is accurately positioned and adhered to the support member. Very difficult to do.
【０００５】また、仮にブレード部材を支持部材に精度
良く位置決めし得たとしても、ブレード部材に稜線を形
成する際、ブレード部材と支持部材との接着部にカット
時の外力が強く加わり、この外力に接着力が耐えきれ
ず、接着部が破壊したり、クリープが生じ、さらにはブ
レード部材が脱落するおそれがある。なお、ブレード部
材には高温時および湿熱時における接着性能も要求され
る。Even if the blade member can be accurately positioned on the support member, when the ridge line is formed on the blade member, the external force at the time of cutting is strongly applied to the bonding portion between the blade member and the support member, and this external force is applied. Since the adhesive strength cannot be endured, the bonded portion may be broken or creep may occur, and the blade member may fall off. The blade member is also required to have adhesive performance at high temperature and wet heat.
【０００６】本発明はかかる点に鑑みてなされたもので
あり、その目的とするところは、ブレード部材を支持部
材に接着する接着剤の種類を特定するとともに、接着の
タイミングを適正に設定することにより、高温時および
湿熱時においても、上記ブレード部材を支持部材に位置
ずれすることなく強固に接着せんとすることにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to specify the type of an adhesive agent for adhering a blade member to a supporting member and to properly set the adhering timing. Thus, the blade member is firmly bonded to the support member without being displaced even at high temperature and wet heat.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
め、本発明は、熱硬化性タイプのウレタンエラストマー
からなるブレード部材が接着剤で支持部材に接着された
電子写真装置用クリーニングブレードを対象とし、次の
ような解決手段を講じた。To achieve the above object, the present invention is directed to a cleaning blade for an electrophotographic apparatus in which a blade member made of a thermosetting type urethane elastomer is adhered to a supporting member with an adhesive. Then, the following solutions were taken.
【０００８】すなわち、本発明の第１の解決手段は、上
記接着剤として、ポリビニルアセタール樹脂のホルムア
ルデヒド縮合型熱硬化性樹脂による変成物を採用したこ
とを特徴とする。That is, the first solution means of the present invention is characterized in that a modified product of a polyvinyl acetal resin by a formaldehyde condensation type thermosetting resin is used as the adhesive.
【０００９】本発明の第２の解決手段は、第１の解決手
段において、支持部材をシランカップリング剤で表面処
理したことを特徴とする。A second solving means of the present invention is characterized in that, in the first solving means, the supporting member is surface-treated with a silane coupling agent.
【００１０】本発明の第３の解決手段は、上述の如き電
子写真装置用クリーニングブレードを製造する方法にお
いて、まず、支持部材の接着面にポリビニルアセタール
樹脂のホルムアルデヒド縮合型熱硬化性樹脂による変成
物からなる接着剤を塗布した後、該接着剤が塗布された
支持部材を成形型にセットする。その後、熱硬化性タイ
プのウレタンエラストマーを上記成形型に注入すること
により、ブレード部材を成形すると同時に、該ブレード
部材に上記支持部材が一体に接着されたクリーニングブ
レードを得ることを特徴とする。A third solution of the present invention is to provide a method for producing a cleaning blade for an electrophotographic apparatus as described above, in which a polyvinyl acetal resin is modified with a formaldehyde condensation type thermosetting resin on the adhesive surface of a supporting member. After applying the adhesive consisting of, the supporting member coated with the adhesive is set in a mold. After that, by injecting a thermosetting type urethane elastomer into the molding die, the blade member is molded, and at the same time, a cleaning blade in which the support member is integrally bonded to the blade member is obtained.
【００１１】本発明の第４の解決手段は、第３の解決手
段において、支持部材をシランカップリング剤で表面処
理したことを特徴とする。A fourth solving means of the present invention is characterized in that, in the third solving means, the supporting member is surface-treated with a silane coupling agent.
【００１２】以下、図１〜５を参照しながらこれらの解
決手段を具体的に説明する。Hereinafter, these solving means will be specifically described with reference to FIGS.
【００１３】ブレード部材１の原料である熱硬化性タイ
プのウレタンエラストマーは、例えば、ポリオールとし
てポリエステル系ポリオール、イソシアネートとしてピ
ュアＭＤＩ、硬化剤としてアルコール系硬化剤を用いて
構成されている。The thermosetting type urethane elastomer which is the raw material of the blade member 1 is constituted by using, for example, polyester polyol as the polyol, pure MDI as the isocyanate, and alcohol curing agent as the curing agent.
【００１４】支持部材２としては、従来からクリーニン
グブレードＡに採用されている剛体の金属製のもの、弾
性を有する金属製のもの、プラスチック製のもの、セラ
ミック製のもの等が挙げられるが、無処理の鋼板、リン
酸亜鉛処理やクロメート処理等の表面処理した鋼板、そ
の他メッキ処理をした鋼板等からなる支持部材２が経時
変化、特に腐食性の点から好ましい。Examples of the supporting member 2 include a rigid metal member conventionally used for the cleaning blade A, an elastic metal member, a plastic member, a ceramic member, and the like. A support member 2 made of a treated steel plate, a steel plate subjected to surface treatment such as zinc phosphate treatment or chromate treatment, and a steel plate subjected to other plating treatment is preferable from the viewpoint of temporal change, particularly corrosiveness.
【００１５】接着剤３´を構成するポリビニルアセター
ル樹脂のホルムアルデヒド縮合型熱硬化性樹脂による変
成物とは、ポリビニルアセタール樹脂（例えば、ポリ酢
酸ビニルをケン化することにより得られるポリビニルア
ルコールをホルムアルデヒド、アセトアルデヒド、ブチ
ルアルデヒド等でアセタール化したもの）と、ホルムア
ルデヒド縮合型熱硬化性樹脂（フェノール樹脂、メラミ
ン樹脂、尿素樹脂、グアナミン樹脂）とを溶剤中で加熱
反応させたものである。The modified form of the polyvinyl acetal resin constituting the adhesive 3'with a formaldehyde condensation type thermosetting resin means a polyvinyl acetal resin (for example, polyvinyl alcohol obtained by saponifying polyvinyl acetate is formaldehyde or acetaldehyde). , Butyraldehyde and the like) and a formaldehyde condensation type thermosetting resin (phenol resin, melamine resin, urea resin, guanamine resin) are heated and reacted in a solvent.
【００１６】また、支持部材２の表面処理剤としてのシ
ランカップリング剤としては、下記の構造式The silane coupling agent as the surface treatment agent for the supporting member 2 has the following structural formula:
【化１】 [Chemical 1]
【００１７】で示されるものならばどれでもよく、例え
ば、ビニルトリクロルシランのようなクロロシラン、ｎ
−（ジメトキメチルシリルプロピル）エチレンジアミ
ン、アミノプロピルトリエトキシシラン、ｎ−（トリエ
トキシシリルプロピル）エチレンジアミン等のアミノシ
ラン、γ−グリシドキシプロピルトリメトキシシラン、
β−（３，４−エポキシシクロヘキシル）エチルトリメ
トキシシラン等のエポキシシラン、ビニルトリエトキシ
シラン、ビニルトリス（β−メトキシエトキシ）シラン
等のビニルシラン等が挙げられる。Any of those represented by, for example, chlorosilanes such as vinyltrichlorosilane, n
-(Dimethoxymethylsilylpropyl) ethylenediamine, aminopropyltriethoxysilane, aminosilane such as n- (triethoxysilylpropyl) ethylenediamine, γ-glycidoxypropyltrimethoxysilane,
Examples thereof include epoxysilane such as β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, vinyltriethoxysilane, vinylsilane such as vinyltris (β-methoxyethoxy) silane, and the like.
【００１８】[0018]
【作用】上記の構成により、本発明の第１〜４の解決手
段では、熱硬化性タイプのウレタンエラストマーにより
成形されるブレード部材は、その成形と同時に、ポリビ
ニルアセタール樹脂のホルムアルデヒド縮合型熱硬化性
樹脂による変成物からなる接着剤で支持部材に一体に接
着されることから、上記ブレード部材および支持部材は
成形型に挟持されて位置関係が変動せず、ブレード部材
が支持部材に精度良く位置決めされる。With the above construction, in the first to fourth means for solving the problems of the present invention, the blade member formed of the thermosetting type urethane elastomer has the formaldehyde condensation type thermosetting property of the polyvinyl acetal resin simultaneously with the forming. Since the blade member and the support member are sandwiched by the molding die and the positional relationship does not change, the blade member is accurately positioned on the support member because the blade member and the support member are integrally bonded with the adhesive composed of a modified product of resin. It
【００１９】また、上記接着剤は、蜜に三次元架橋され
た化学構造をしていることから、機械的強度、耐水性お
よび耐熱性に優れ、得られる接着力も同様に強度、耐環
境性に優れている。したがって、ブレード部材に稜線を
形成する際、ブレード部材と支持部材との接着部にカッ
ト時の外力が強く加わっても、この外力に接着力が十分
に耐え得、接着部の破壊やクリープが生じず、さらには
ブレード部材が脱落しない。Further, since the adhesive has a three-dimensionally cross-linked chemical structure in honey, it is excellent in mechanical strength, water resistance and heat resistance, and the obtained adhesive strength is also strength and environment resistance. Are better. Therefore, when forming the ridgeline on the blade member, even if the external force at the time of cutting is strongly applied to the adhesive portion between the blade member and the supporting member, the adhesive force can sufficiently withstand this external force, and the adhesive portion is broken or creeps. Moreover, the blade member does not fall off.
【００２０】特に、本発明の第２，４の解決手段では、
支持部材の表面がシランカップリング剤によって改質さ
れ、ブレード部材が支持部材により一層強固に接着され
る。Particularly, in the second and fourth solving means of the present invention,
The surface of the support member is modified by the silane coupling agent, and the blade member is more firmly adhered to the support member.
【００２１】[0021]
【実施例】以下、本発明の実施例を比較例と共に具体的
に説明する。EXAMPLES Examples of the present invention will be specifically described below together with comparative examples.
【００２２】実施例１，２および比較例１〜３のクリー
ニングブレードＡ（図１参照）を下記の要領にて作っ
た。また、その接着力および耐久性を下記の要領にて調
べ、その結果を表１に示す。Cleaning blades A of Examples 1 and 2 and Comparative Examples 1 to 3 (see FIG. 1) were prepared in the following manner. Further, the adhesive strength and durability were examined in the following manner, and the results are shown in Table 1.
【００２３】（実施例１）リン酸塩処理された鉄板（新
日本製鉄社製 ボンデ鋼板）で作った支持部材２を溶剤
（塩化メチレン）にて洗浄し、図３に示すように、この
支持部材２の接着面にポリビニルアセタール樹脂のホル
ムアルデヒド縮合型熱硬化性樹脂による変成物の溶液
（コナップ社製 １１４６）からなる接着剤３´を刷毛
４で塗布し、乾燥させて図４に示すような接着剤層３を
形成した。(Example 1) A supporting member 2 made of a phosphate-treated iron plate (Bondet steel plate manufactured by Nippon Steel Corporation) was washed with a solvent (methylene chloride), and as shown in FIG. An adhesive 3'consisting of a solution of a modified formaldehyde condensation type thermosetting resin of polyvinyl acetal resin (1146, manufactured by Konapp Co.) is applied to the adhesive surface of the member 2 with a brush 4 and dried, as shown in FIG. The adhesive layer 3 was formed.
【００２４】その後、図５に示すように、この支持部材
２を１５０℃に設定した割型５，５にセットし、下記の
配合からなる熱硬化性タイプのウレタンエラストマー１
´を上記割型５，５間に形成されるキャビティ５ａに注
入した。そして、注入後、６０分の経過を待ってブレー
ド部材１を成形した後、上記割型５，５を型開きし、図
１に示すように、ブレード部材１の成形と同時に、該ブ
レード部材１に上記支持部材２が接着剤層３で一体に接
着されたクリーニングブレードＡを得た。Thereafter, as shown in FIG. 5, the supporting member 2 was set in split molds 5 and 5 set at 150 ° C., and a thermosetting type urethane elastomer 1 having the following composition was prepared.
′ Was injected into the cavity 5a formed between the split molds 5 and 5. Then, after 60 minutes have elapsed after the injection, the blade member 1 is molded, the mold halves 5 and 5 are opened, and the blade member 1 is molded at the same time as shown in FIG. Then, the cleaning blade A in which the support member 2 was integrally bonded with the adhesive layer 3 was obtained.
【００２５】しかる後、このクリーニングブレードＡを
割型５，５から取り出し、オーブンで１１０℃×６ｈｒ
ｓの条件下で加熱した後、ブレード部材１の先端部を切
断して稜線を形成した。Then, the cleaning blade A is taken out from the split molds 5 and 5 and is heated in an oven at 110 ° C. for 6 hours.
After heating under the condition of s, the tip of the blade member 1 was cut to form a ridge.
【００２６】＜ウレタンエラストマーの配合＞ ウレタンプレポリマー １） １００ｇ １，４−ブタンジオール ３．９ｇ トリメチロールプロパン ２．６ｇ １）ＭＤＩ：ポリエチレンアジペート （数平均分子量：２０００） ＮＣＯ％＝６．３％ （実施例２）実施例１と同じ材質の支持部材２を同様に
洗浄した後、シランカップリング剤（信越化学工業社製
ＫＭＢ４０３）に浸漬し、乾燥させた。その後、この
支持部材２にポリビニルアセタール樹脂のホルムアルデ
ヒド縮合型熱硬化性樹脂による変成物の溶液（コナップ
社製 １１４６）からなる接着剤３´を刷毛４で塗布
し、乾燥させて接着剤層３を形成した。その後は、実施
例１と同様にしてクリーニングブレードＡを得た。<Composition of urethane elastomer> Urethane prepolymer 1) 100 g 1,4-butanediol 3.9 g Trimethylolpropane 2.6 g 1) MDI: polyethylene adipate (number average molecular weight: 2000) NCO% = 6.3% (Example 2) The supporting member 2 made of the same material as in Example 1 was washed in the same manner, then immersed in a silane coupling agent (KMB403 manufactured by Shin-Etsu Chemical Co., Ltd.) and dried. After that, an adhesive 3 ′ composed of a solution of a modified formaldehyde condensation type thermosetting resin of polyvinyl acetal resin (1146, manufactured by Konapp) is applied to the support member 2 with a brush 4, and dried to form an adhesive layer 3. Formed. After that, the cleaning blade A was obtained in the same manner as in Example 1.
【００２７】（比較例１）実施例１と同じ支持部材２を
用いた。また、ブレード部材１は、実施例１と同じ組成
のウレタンエラストマーを遠心成形にて実施例１と同一
に厚みのシートとし、その後、切断することにより得た
ものを用いた。そして、両面粘着テープ（日東電工
（株）製 ＃５００）を支持部材２に貼り付け、その上
からブレード部材１を貼り付け、３ｋｇ／ｍ2 の圧力で
１分間加圧保持し、クリーニングブレードＡを得た。Comparative Example 1 The same supporting member 2 as in Example 1 was used. Further, as the blade member 1, a urethane elastomer having the same composition as in Example 1 was centrifugally molded into a sheet having the same thickness as in Example 1, and then a sheet obtained by cutting was used. Then, a double-sided adhesive tape (# 500 manufactured by Nitto Denko Corporation) was attached to the support member 2, the blade member 1 was attached thereon, and the pressure was maintained at 3 kg / m 2 for 1 minute, and the cleaning blade A was used. Got
【００２８】（比較例２）比較例１と同じブレード部材
１および支持部材２を用い、シアノアクリレート系の瞬
間接着剤（東亜合成化学（株）製 アロンアルファー４
０１）を支持部材２に厚さ２０μｍになるように塗布し
た後、直ちにブレード部材１を貼り付け、３ｋｇ／ｍ2
の圧力で１分間加圧保持し、クリーニングブレードＡを
得た。Comparative Example 2 Using the same blade member 1 and supporting member 2 as in Comparative Example 1, a cyanoacrylate-based instant adhesive (Aaron Alpha-4 manufactured by Toagosei Kagaku Co., Ltd.) was used.
01) is applied to the supporting member 2 so as to have a thickness of 20 μm, and then the blade member 1 is immediately attached to the supporting member 2 and 3 kg / m 2
The pressure was held for 1 minute under pressure to obtain a cleaning blade A.
【００２９】（比較例３）比較例１と同じブレード部材
１および支持部材２を用い、ウレタン系のホットメルト
接着剤（武田薬品（株）製 タケメルト２０５Ｌ：フィ
ルム状、幅５ｍｍ×厚さ１００μｍ）を支持部材２の接
着面に仮止めし、その上からブレード部材１を貼り付
け、３ｋｇ／ｍ2 の圧力で保持し、高周波により１５０
〜１６０℃で１分間加熱した後、冷却してクリーニング
ブレードＡを得た。Comparative Example 3 Using the same blade member 1 and supporting member 2 as in Comparative Example 1, a urethane-based hot melt adhesive (Takemelt 205L manufactured by Takeda Yakuhin Co., Ltd .: film, width 5 mm × thickness 100 μm) Is temporarily fixed to the adhesive surface of the support member 2, and the blade member 1 is attached from above, and the blade member 1 is held at a pressure of 3 kg / m 2 and is subjected to a high frequency of 150.
After heating at ˜160 ° C. for 1 minute, it was cooled to obtain a cleaning blade A.
【００３０】＜接着力＞図２に示すように、支持部材２
を固定し、ブレード部材１の先端部をエアチャックで保
持して矢印Ｆの方向に引っ張り、９０°剥離強度を０
℃、２５℃、６０℃の雰囲気温度および６０℃×５０％
ＲＨ×２４ｈｒｓ放置後２５℃の下で測定した。引張ス
ピードは３０ｍｍ／分とした。<Adhesive Strength> As shown in FIG.
Is fixed, and the tip of the blade member 1 is held by an air chuck and pulled in the direction of arrow F to reduce the 90 ° peel strength to 0.
Ambient temperature of ℃, 25 ℃, 60 ℃ and 60 ℃ × 50%
After standing at RH × 24 hrs, measurement was performed at 25 ° C. The pulling speed was 30 mm / min.
【００３１】＜耐久性＞市販の乾式普通紙電子写真複写
機にクリーニングブレードを装着し、雰囲気温度２５℃
および５０℃で繰り返して画像複写し、ブレード部材１
の接着強度の寿命を調べ、良好に、つまり、画像に黒点
やクリーニング不良による黒すじが生じない状態で複写
できる枚数で評価した。<Durability> A commercially available dry plain paper electrophotographic copying machine is equipped with a cleaning blade, and the ambient temperature is 25 ° C.
And the image is repeatedly copied at 50 ° C., and the blade member 1
The life of the adhesive strength was examined and evaluated by the number of sheets that could be copied satisfactorily, that is, in the state where black spots or black streaks due to poor cleaning did not occur in the image.
【００３２】[0032]
【表１】 [Table 1]
【００３３】その結果、表１に明らかなように、実施例
１，２は比較例１〜３に比べて接着力が強く、特に高温
での耐久性が優れていることが判る。また、シランカッ
プリング剤で表面処理した支持部材２を用いた実施例２
では、実施例１よりも良い結果が得られていることが判
る。As a result, as is clear from Table 1, Examples 1 and 2 have a stronger adhesive force than Comparative Examples 1 to 3 and are particularly excellent in durability at high temperatures. In addition, Example 2 using the support member 2 surface-treated with a silane coupling agent
Then, it can be seen that the result is better than that of the first embodiment.
【００３４】なお、上記実施例では、支持部材２をその
片面に形成した接着剤層３を介してブレード部材１に一
体に接着したが、図６に示すように、容器６に入った接
着剤３´中に支持部材２の一部を浸漬し、図７に示すよ
うに、支持部材２の両面に接着剤層３を形成し、図８に
示すように、この支持部材２を上記実施例と同様の要領
にて割型５，５にセットして熱硬化性タイプのウレタン
エラストマー１´をキャビティ５ａに注入することによ
り、支持部材２をその両面に形成した接着剤層３を介し
てブレード部材１に一体に接着するようにしてもよい。In the above embodiment, the supporting member 2 is integrally bonded to the blade member 1 via the adhesive layer 3 formed on one surface thereof, but as shown in FIG. A part of the support member 2 is dipped in 3'to form the adhesive layers 3 on both surfaces of the support member 2 as shown in FIG. 7, and this support member 2 is formed as shown in FIG. The thermosetting urethane elastomer 1'is set in the split molds 5 and 5 in the same manner as in the above, and the thermosetting type urethane elastomer 1'is injected into the cavity 5a, so that the blade is inserted through the adhesive layer 3 having the support member 2 formed on both surfaces thereof. You may make it adhere | attach on the member 1 integrally.
【００３５】[0035]
【発明の効果】以上説明したように、請求項１〜４に係
る本発明によれば、熱硬化性タイプのウレタンエラスト
マーにより成形されたブレード部材を、その成形と同時
に、ポリビニルアセタール樹脂のホルムアルデヒド縮合
型熱硬化性樹脂による変成物からなる接着剤で支持部材
に接着したことから、耐熱性および耐湿熱性に優れた接
着機能を得ることができ、上記ブレード部材を位置ずれ
することなく支持部材に強固に接着することができる。As described above, according to the present invention as set forth in claims 1 to 4, a blade member formed of a thermosetting type urethane elastomer is formed at the same time when the blade member is formed and formaldehyde condensation of polyvinyl acetal resin is carried out. Since it is adhered to the supporting member with an adhesive composed of a modified product of a mold thermosetting resin, it is possible to obtain an adhesive function with excellent heat resistance and moist heat resistance, and the blade member is firmly attached to the supporting member without displacement. Can be glued to.
【００３６】特に、請求項２，４に係る本発明によれ
ば、接着剤として、支持部材をシランカップリング剤で
表面処理したので、支持部材に対するブレード部材の接
着力をより一層高めることができる。In particular, according to the second and fourth aspects of the present invention, since the supporting member is surface-treated with a silane coupling agent as an adhesive, the adhesive force of the blade member to the supporting member can be further enhanced. .
【図１】クリーニングブレードの斜視図である。FIG. 1 is a perspective view of a cleaning blade.
【図２】クリーニングブレードの接着力のテスト要領を
説明する図である。FIG. 2 is a diagram illustrating a procedure for testing the adhesive force of a cleaning blade.
【図３】支持部材の片面に接着剤を塗布する状態を示す
図である。FIG. 3 is a diagram showing a state in which an adhesive is applied to one surface of a support member.
【図４】支持部材の片面に接着剤層を形成した状態を示
す図である。FIG. 4 is a diagram showing a state in which an adhesive layer is formed on one surface of a support member.
【図５】接着剤層を片面に有する支持部材がセットされ
た成形型にウレタンエラストマーを注入する状態を示す
図である。FIG. 5 is a view showing a state where a urethane elastomer is injected into a molding die in which a support member having an adhesive layer on one surface is set.
【図６】支持部材の一部を接着剤に浸漬した状態を示す
図である。FIG. 6 is a diagram showing a state in which a part of a support member is immersed in an adhesive.
【図７】支持部材の両面に接着剤層を形成した状態を示
す図である。FIG. 7 is a diagram showing a state in which an adhesive layer is formed on both surfaces of a support member.
【図８】接着剤層を両面に有する支持部材がセットされ
た成形型にウレタンエラストマーを注入する状態を示す
図である。FIG. 8 is a diagram showing a state in which a urethane elastomer is injected into a molding die in which support members having adhesive layers on both sides are set.
１ ブレード部材 １´ ウレタンエラストマー ２ 支持部材 ３ 接着剤層 ３´ 接着剤 ５ 成形型 Ａ クリーニングブレード DESCRIPTION OF SYMBOLS 1 Blade member 1'Urethane elastomer 2 Support member 3 Adhesive layer 3'Adhesive 5 Mold D A Cleaning blade
Claims (4)
からなるブレード部材が接着剤で支持部材に接着された
電子写真装置用クリーニングブレードであって、 上記接着剤として、ポリビニルアセタール樹脂のホルム
アルデヒド縮合型熱硬化性樹脂による変成物を用いたこ
とを特徴とする電子写真装置用クリーニングブレード。1. A cleaning blade for an electrophotographic apparatus, wherein a blade member made of a thermosetting type urethane elastomer is adhered to a supporting member with an adhesive, and the formaldehyde condensation type thermosetting of polyvinyl acetal resin is used as the adhesive. A cleaning blade for an electrophotographic apparatus, which is characterized by using a modified product of a photosensitive resin.
面処理されていることを特徴とする請求項１記載の電子
写真装置用クリーニングブレード。2. The cleaning blade for an electrophotographic apparatus according to claim 1, wherein the supporting member is surface-treated with a silane coupling agent.
からなるブレード部材が接着剤で支持部材に接着された
電子写真装置用クリーニングブレードの製造方法であっ
て、 上記支持部材の接着面にポリビニルアセタール樹脂のホ
ルムアルデヒド縮合型熱硬化性樹脂による変成物からな
る接着剤を塗布した後、該接着剤が塗布された支持部材
を成形型にセットし、 その後、熱硬化性タイプのウレタンエラストマーを上記
成形型に注入することにより、ブレード部材を成形する
と同時に、該ブレード部材に上記支持部材が一体に接着
されたクリーニングブレードを得ることを特徴とする電
子写真装置用クリーニングブレードの製造方法。3. A method of manufacturing a cleaning blade for an electrophotographic apparatus, wherein a blade member made of a thermosetting type urethane elastomer is adhered to a supporting member with an adhesive, wherein a polyvinyl acetal resin is attached to an adhesive surface of the supporting member. After applying an adhesive composed of a modified formaldehyde-condensation type thermosetting resin, the support member coated with the adhesive is set in a molding die, and then a thermosetting urethane elastomer is injected into the molding die. By doing so, at the same time as molding the blade member, a cleaning blade in which the supporting member is integrally bonded to the blade member is obtained, and a method for manufacturing a cleaning blade for an electrophotographic apparatus, comprising:
面処理されていることを特徴とする請求項３記載の電子
写真装置用クリーニングブレードの製造方法。4. The method of manufacturing a cleaning blade for an electrophotographic apparatus according to claim 3, wherein the support member is surface-treated with a silane coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11110494A JPH07319354A (en) | 1994-05-25 | 1994-05-25 | Cleaning blade for electrophotographic device and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11110494A JPH07319354A (en) | 1994-05-25 | 1994-05-25 | Cleaning blade for electrophotographic device and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07319354A true JPH07319354A (en) | 1995-12-08 |
Family
ID=14552506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11110494A Pending JPH07319354A (en) | 1994-05-25 | 1994-05-25 | Cleaning blade for electrophotographic device and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07319354A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005256070A (en) * | 2004-03-11 | 2005-09-22 | Nippon Steel Corp | Inorganic-organic composite treated zinc-base plated steel sheet for blade supporting member |
| JP2005264276A (en) * | 2004-03-22 | 2005-09-29 | Nippon Steel Corp | Inorganic and organic composite treatment zinc-based plated steel sheet for blade supporting member |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527342A (en) * | 1978-08-16 | 1980-02-27 | Sekisui Chem Co Ltd | Adhesive composition |
| JPS61225268A (en) * | 1985-03-30 | 1986-10-07 | Sekisui Chem Co Ltd | Adhesive composition |
| JPS6322882A (en) * | 1987-05-15 | 1988-01-30 | Sekisui Chem Co Ltd | Adhesive composition |
| JPH04318589A (en) * | 1991-04-17 | 1992-11-10 | Yokohama Rubber Co Ltd:The | Production of cleaning blade |
-
1994
- 1994-05-25 JP JP11110494A patent/JPH07319354A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527342A (en) * | 1978-08-16 | 1980-02-27 | Sekisui Chem Co Ltd | Adhesive composition |
| JPS61225268A (en) * | 1985-03-30 | 1986-10-07 | Sekisui Chem Co Ltd | Adhesive composition |
| JPS6322882A (en) * | 1987-05-15 | 1988-01-30 | Sekisui Chem Co Ltd | Adhesive composition |
| JPH04318589A (en) * | 1991-04-17 | 1992-11-10 | Yokohama Rubber Co Ltd:The | Production of cleaning blade |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005256070A (en) * | 2004-03-11 | 2005-09-22 | Nippon Steel Corp | Inorganic-organic composite treated zinc-base plated steel sheet for blade supporting member |
| JP2005264276A (en) * | 2004-03-22 | 2005-09-29 | Nippon Steel Corp | Inorganic and organic composite treatment zinc-based plated steel sheet for blade supporting member |
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