JPH0885645A - Sheetlike belt - Google Patents
Sheetlike beltInfo
- Publication number
- JPH0885645A JPH0885645A JP22472694A JP22472694A JPH0885645A JP H0885645 A JPH0885645 A JP H0885645A JP 22472694 A JP22472694 A JP 22472694A JP 22472694 A JP22472694 A JP 22472694A JP H0885645 A JPH0885645 A JP H0885645A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- intermediate transfer
- transfer belt
- reinforcing material
- reinforcing
- 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
- 239000000839 emulsion Substances 0.000 claims abstract description 14
- 239000012779 reinforcing material Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920002050 silicone resin Polymers 0.000 claims abstract description 7
- 238000007598 dipping method Methods 0.000 claims abstract description 4
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000009477 glass transition Effects 0.000 description 3
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電子写真装置に用いら
れる感光体ベルト、または中間体転写ベルト等、表面に
化学的処理が施され、かつエンドレスになっているシー
ト状ベルトに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endless sheet-like belt which has been chemically treated on its surface, such as a photosensitive belt used in an electrophotographic apparatus or an intermediate transfer belt. .
【０００２】[0002]
【従来の技術】電子写真装置には中間体転写方式が用い
られているものがあり、この中間体転写方式とは、感光
体上のトナー像を一旦ベルトあるいはドラム等の転写中
間体に転写した後に、その転写中間体上のトナー像を用
紙等の被画像形成体に転写する方式である。そしてこの
ような中間体転写方式に用いられるエンドレスのシート
状ベルトを中間体転写ベルトという。2. Description of the Related Art Some electrophotographic apparatuses use an intermediate transfer system. In this intermediate transfer system, a toner image on a photoreceptor is once transferred onto a transfer intermediate such as a belt or a drum. After that, the toner image on the transfer intermediate is transferred to an image forming body such as paper. An endless sheet belt used in such an intermediate transfer system is called an intermediate transfer belt.
【０００３】この中間体転写ベルトは、例えば、厚み１
５０μｍのポリカーボネイト層にカーボン粒子を分散さ
せて形成したエンドレスのベルト状の構造のものが用い
られている。そして、主に、カラー画像を形成する電子
写真装置に用いられ、中間体転写ベルト上には、感光体
から、例えば、赤トナー像、青トナー像、黄トナー像、
さらには黒トナー像を順次転写して重ね合わされてカラ
ー画像が形成され、このカラー画像が次の転写工程にて
用紙等の転写材上に転写され、ついで加熱定着されてカ
ラー複写が作成されるようになっている。This intermediate transfer belt has, for example, a thickness of 1
An endless belt-shaped structure formed by dispersing carbon particles in a 50 μm polycarbonate layer is used. Then, it is mainly used in an electrophotographic apparatus for forming a color image, and on the intermediate transfer belt, for example, a red toner image, a blue toner image, a yellow toner image,
Further, the black toner images are sequentially transferred and overlaid to form a color image, and this color image is transferred onto a transfer material such as paper in the next transfer step, and then heat-fixed to form a color copy. It is like this.
【０００４】上記した中間体転写ベルトは、これの表面
に複写のトナー像を形成するため、これの走行は高精度
に制御される。そして、図１（ａ）に示すように、この
中間体転写ベルト１は複数本のローラ２，３間に張設さ
れ、このローラ２，３の回転に従って走行するようにな
っている。Since the above-mentioned intermediate transfer belt forms a toner image for copying on the surface thereof, its running is controlled with high accuracy. Then, as shown in FIG. 1A, the intermediate transfer belt 1 is stretched between a plurality of rollers 2 and 3 and travels according to the rotation of the rollers 2 and 3.
【０００５】またこの中間体転写ベルト１は幅方向の移
動を制御する必要があり、この幅方向の移動を規制する
ための手段としては、図１（ｂ）に示すように、ローラ
２ａ，３ａに溝４を設け、一方中間体転写ベルト１には
この各溝４に係合する突条５を設けた構成のもの、ある
いは図１（ｃ）に示すように、少なくとも一方のローラ
２の両端部に中間体転写ベルト１の幅方向の動きを規制
するためのフランジ等のベルト支持板６を設けたもの等
が知られている。Further, it is necessary to control the movement of the intermediate transfer belt 1 in the width direction, and as means for regulating the movement in the width direction, as shown in FIG. 1 (b), rollers 2a and 3a are used. 1 is provided with grooves 4 on the other hand, and on the other hand, the intermediate transfer belt 1 is provided with protrusions 5 that engage with the grooves 4, or as shown in FIG. It is known that a belt support plate 6 such as a flange for restricting the movement of the intermediate transfer belt 1 in the width direction is provided in the portion.
【０００６】中間体転写ベルト１には普通１〜２ｋｇｆ
のテンションが加えられた状態で長期間回転使用される
ため、応力が集中する両側端部に割れや亀裂が発生し、
ベルトが破損するという問題がある。The intermediate transfer belt 1 usually has a weight of 1 to 2 kgf.
Since it is used for a long period of time with the tension applied, cracks and cracks occur at both ends where stress concentrates,
There is a problem that the belt is damaged.
【０００７】そこで従来のこの種の中間体転写ベルトの
両側端部を補強するための手段として、テフロン（商品
名）またはポリエチレン系のテープ材料をベルト端部に
貼り付けて補強する手段が、例えば実開平２−９５０７
０号公報にて知られている。Therefore, as a means for reinforcing both end portions of a conventional intermediate transfer belt of this type, a means for attaching and reinforcing a Teflon (trade name) or polyethylene tape material to the belt end portion is, for example, Actual Kaihei 2-9507
It is known from publication No. 0.
【０００８】[0008]
【発明が解決しようとする課題】ところで、このような
テープ材料による端部補強手段では、図２に示すよう
に、中間体転写ベルト１の端部の表面にテープ７を貼り
付けたときに、テープ継ぎ目部８でテープ７が２重に重
さなり、この部分での厚みが部分的に厚くなり、これに
より、ベルト駆動時にこの部分に応力集中が発生してし
まい、このテープ継ぎ目部８の近傍より中間体転写ベル
ト１に亀裂が発生してしまうという問題があった。By the way, in the end portion reinforcing means using such a tape material, as shown in FIG. 2, when the tape 7 is attached to the surface of the end portion of the intermediate transfer belt 1, as shown in FIG. The tape 7 is double-weighted at the tape seam portion 8, and the thickness at this portion is partially thickened. As a result, stress concentration occurs at this portion when the belt is driven. There has been a problem that the intermediate transfer belt 1 is cracked from the vicinity.
【０００９】また上記テープ７は図２に示すように中間
体転写ベルト１の片面だけに貼り付け、あるいは図３に
示すように両面に貼り付けるが、いずれの場合も中間体
転写ベルト１の側端面には貼られていなかった。The tape 7 is stuck on only one side of the intermediate transfer belt 1 as shown in FIG. 2 or on both sides of the intermediate transfer belt 1 as shown in FIG. It was not attached to the end face.
【００１０】このため、幅方向の動きをベルト支持板６
にて規制するようにしたもので、図３に示すように、こ
のベルト支持板６に中間体転写ベルト１の端面が当接す
る構成のものでは、このベルト支持体６とベルト端面と
の摩擦磨耗により、ベルト基材に配合されたカーボンブ
ラックを含む微細な破片粒子が、中間体転写ベルト１の
画像形成領域に飛散し、画像汚染や機内汚染を起こすと
いう問題がある。Therefore, the belt support plate 6 is moved in the width direction.
In the structure in which the end surface of the intermediate transfer belt 1 contacts the belt support plate 6 as shown in FIG. 3, the frictional wear between the belt support 6 and the end surface of the belt is prevented. As a result, there is a problem that fine debris particles containing carbon black mixed in the belt base material are scattered in the image forming region of the intermediate transfer belt 1 to cause image contamination and in-machine contamination.
【００１１】本発明は上記のことにかんがみなされたも
ので、シート状ベルト端部を補強する手段について、鋭
意研究を重ねた結果、シート状ベルトの側端面を含む側
端部に継ぎ目のない一様な補強をすることができるよう
にしたもので、亀裂や側端面の磨耗が生じることがな
く、従って長時間の使用に耐えることができるようにし
たシート状を提供することを目的とするものである。The present invention has been conceived in view of the above, and as a result of intensive research on means for reinforcing the end portion of the sheet belt, the side end portion including the side end surface of the sheet belt is seamless. The purpose of the present invention is to provide a sheet-like material that can be reinforced in various ways and that can be used for a long time without cracking or abrasion of the side end surfaces. Is.
【００１２】[0012]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係るシート状ベルトは、エンドレス状にな
っているベルト基材の幅方向両端部の表裏の両面及び端
面に、デイッピング（浸漬）加工にて補強材を一様の厚
さに被覆した構成となっている。In order to achieve the above object, a sheet-shaped belt according to the present invention is provided with a dipping (both side) surface and an end surface at both ends in the width direction of an endless belt base material. The reinforcing material is coated to a uniform thickness by dipping.
【００１３】そして上記補強材として、水−エマルジョ
ン系の樹脂、あるいは水−エマルジョン系のフッ素樹
脂、水−エマルジョン系のアクリル変性シリコン樹脂を
用いる。As the reinforcing material, a water-emulsion type resin, a water-emulsion type fluorine resin, or a water-emulsion type acrylic modified silicone resin is used.
【００１４】[0014]
【作 用】エンドレスのベルト基材の両端部は補強材
にて均一に補強される。そしてこのベルト基材の両端部
に厚みの違う部分がないので、部分的な応力集中がなく
なり、応力集中による割れや亀裂の発生が防止できる。[Operation] Both ends of the endless belt base material are uniformly reinforced with reinforcing materials. Further, since there are no portions having different thicknesses at both ends of the belt base material, partial stress concentration is eliminated, and cracks or cracks due to stress concentration can be prevented.
【００１５】[0015]
【実 施 例】以下に本発明の実施例を説明する。エン
ドレス状に構成した中間体転写ベルト１の幅方向の両側
端の約１５ｍｍを補強材溶液に浸漬し、引取り速度を約
１ｍ／秒にて成膜させながら引き上げる。この実施例に
おいて、補強材には、日本合成ゴム社製のシリコンアク
リルエマルジョンＳＸ８００（Ｂ）−０７（ガラス転移
点６０℃）を１００重量部に対して、消泡剤として、サ
ンプノコ社製Ｎデフォーマー４８３を０．５重量部加
え、さらに、増膜助剤として、ブチルカルビトール（特
級試薬）を２０重量部を加えて撹拌し、脱泡装置にて泡
を除去してなるシリコンアクリルエマルジョン液を用い
た。EXAMPLES Examples of the present invention will be described below. About 15 mm at both lateral ends of the intermediate transfer belt 1 having an endless shape is immersed in the reinforcing material solution, and the intermediate transfer belt 1 is pulled up while forming a film at a take-up speed of about 1 m / sec. In this example, as a reinforcing material, 100 parts by weight of a silicone acrylic emulsion SX800 (B) -07 (glass transition point: 60 ° C.) manufactured by Japan Synthetic Rubber Co., Ltd. was used as an antifoaming agent, and N Deformer manufactured by Sampnoco Co. was used. Add 483 parts by weight of 483, and further add 20 parts by weight of butyl carbitol (special grade reagent) as a film forming aid, stir, and remove the bubbles with a defoaming device to obtain a silicone acrylic emulsion liquid. Using.
【００１７】次にこのベルト１を８０℃に加熱した加熱
雰囲気炉にて３０分間乾燥させる。その結果、図４に示
すように、中間体転写ベルト１の両側端部の表裏の両側
面と端面に厚さが１０〜２０μｍのアクリル変性シリコ
ン樹脂９が被覆されてこの部分が補強される。Next, the belt 1 is dried for 30 minutes in a heating atmosphere furnace heated to 80.degree. As a result, as shown in FIG. 4, both sides and end faces of both sides of the intermediate transfer belt 1 are covered with acrylic modified silicone resin 9 having a thickness of 10 to 20 μm to reinforce this portion.
【００１８】アクリル変性シリコン樹脂は、アクリル樹
脂の配合量によって、材料のガラス転移点を変更するこ
とが可能である。アクリル樹脂の配合量が少ないシリコ
ンアクリルエマルジョン用いた場合、ブチルカルビトー
ル（特級試薬）などの増膜助剤を必要とせず。具体的に
は日本合成ゴム社製シリコンアクリルエマルジョンＳＸ
８００（Ｂ）−０６（ガラス転移点３０℃）を用い、１
００重量部に対して、消泡剤として、サンプノコ株式会
社社製Ｎデフォーマー４８３を０．５重量部を加え、撹
拌し、脱泡装置にて泡を除去して、シリコンアクリルエ
マルジョン液を得る。上記エマルジョン液にベルト基材
の端部の約１５ｍｍを浸漬させ、引取り速度約１ｍ／秒
にて成膜させながら引き上げる。次に、このベルトを８
０℃に加熱した加熱雰囲気炉にて３０分間乾燥する。こ
の結果、図４に示し如く、ベルト端面及び端部を厚み１
０〜２０μｍのアクリル変性シリコン樹脂が覆うことが
できる。なお上記補強材の成膜厚さはエマルジョン液の
粘度、引き上げ速度で調節される。The acrylic-modified silicone resin can change the glass transition point of the material depending on the amount of the acrylic resin compounded. When silicone acrylic emulsion containing a small amount of acrylic resin is used, a film-forming aid such as butyl carbitol (special grade reagent) is not required. Specifically, Japan Synthetic Rubber Co., Ltd. Silicon Acrylic Emulsion SX
Using 800 (B) -06 (glass transition point 30 ° C.), 1
0.5 parts by weight of N-deformer 483 manufactured by Sampnoco Co., Ltd. was added as an antifoaming agent to 100 parts by weight, and the mixture was stirred and the bubbles were removed by a defoaming device to obtain a silicone acrylic emulsion liquid. About 15 mm at the end of the belt base material is dipped in the emulsion solution and pulled up while forming a film at a take-up speed of about 1 m / sec. Next, this belt 8
Dry for 30 minutes in a heating atmosphere furnace heated to 0 ° C. As a result, as shown in FIG.
It can be covered with 0-20 μm acrylic modified silicone resin. The film thickness of the reinforcing material is adjusted by the viscosity of the emulsion and the pulling rate.
【００１９】[0019]
【発明の効果】本発明によれば、ベルト端部の表裏の両
面及び両側端面に継ぎ目のない一様な補強をすることが
でき、亀裂や側端面の磨耗が生じることがなくなり、長
時間の使用に耐えるシート状ベルトを提供することがで
きる。EFFECTS OF THE INVENTION According to the present invention, both the front and back surfaces of the belt end portion and both end surfaces can be uniformly reinforced without a seam, and cracks and side end surface wear can be prevented, resulting in a long time. A sheet belt that can be used can be provided.
【図１】 （ａ），（ｂ），（ｃ）は中間体転写ベルト
のローラへの巻掛け状態のそれぞれ異なる例を示す斜視
図である。1A, 1B, and 1C are perspective views showing different examples of a state in which an intermediate transfer belt is wound around a roller.
【図２】 補強材にテープを用いた場合のベルト端面図
である。FIG. 2 is an end view of a belt when a tape is used as a reinforcing material.
【図３】 補強材にテープを用いた場合で、かつ幅方向
規制材を用いた場合の断面図である。FIG. 3 is a cross-sectional view when a tape is used as a reinforcing material and when a width direction regulating material is used.
【図４】 本発明における実施例を示す断面図である。FIG. 4 is a sectional view showing an embodiment of the present invention.
１…中間体転写ベルト、２，３，２ａ，３ａ…ローラ、
４…溝、５…突条、６…ベルト支持板、７…テープ、８
…継ぎ目部、９…アクリル変性シリコン樹脂。1 ... Intermediate transfer belt, 2, 3, 2a, 3a ... Roller,
4 ... groove, 5 ... ridge, 6 ... belt support plate, 7 ... tape, 8
… Seams, 9… Acrylic modified silicone resin.
Claims (4)
幅方向両端部の表裏の両面及び端面に、デイッピング加
工にて補強材を一様の厚さに被覆したことを特徴とする
シート状ベルト。1. A sheet-like belt, characterized in that both sides of the widthwise end portions of an endless belt base material and both end surfaces are coated with a reinforcing material to a uniform thickness by a dipping process. .
脂を用いたことを特徴とする請求項１記載のシート状ベ
ルト。2. The sheet-shaped belt according to claim 1, wherein a water-emulsion type resin is used as the reinforcing material.
ッ素樹脂を用いたことを特徴とする請求項１記載のシー
ト状ベルト。3. The sheet-shaped belt according to claim 1, wherein a water-emulsion type fluororesin is used as the reinforcing material.
クリル変性シリコン樹脂を用いたことを特徴とする請求
項１記載のシート状ベルト。4. The sheet-shaped belt according to claim 1, wherein a water-emulsion acrylic modified silicone resin is used as the reinforcing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22472694A JPH0885645A (en) | 1994-09-20 | 1994-09-20 | Sheetlike belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22472694A JPH0885645A (en) | 1994-09-20 | 1994-09-20 | Sheetlike belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0885645A true JPH0885645A (en) | 1996-04-02 |
Family
ID=16818289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22472694A Pending JPH0885645A (en) | 1994-09-20 | 1994-09-20 | Sheetlike belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0885645A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006016105A (en) * | 2004-06-30 | 2006-01-19 | Chuko Kasei Kogyo Kk | Heat-resistant conveyer belt |
| JP2007148329A (en) * | 2005-11-02 | 2007-06-14 | Nitto Denko Corp | Endless belt with meander prevention guide |
| JP2009002992A (en) * | 2007-06-19 | 2009-01-08 | Konica Minolta Business Technologies Inc | Image forming apparatus |
| JP2011085808A (en) * | 2009-10-16 | 2011-04-28 | Bridgestone Corp | Endless belt |
| JP2014119652A (en) * | 2012-12-18 | 2014-06-30 | Ricoh Co Ltd | Intermediate transfer body, manufacturing method of intermediate transfer body, and image forming apparatus |
-
1994
- 1994-09-20 JP JP22472694A patent/JPH0885645A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006016105A (en) * | 2004-06-30 | 2006-01-19 | Chuko Kasei Kogyo Kk | Heat-resistant conveyer belt |
| JP2007148329A (en) * | 2005-11-02 | 2007-06-14 | Nitto Denko Corp | Endless belt with meander prevention guide |
| JP2009002992A (en) * | 2007-06-19 | 2009-01-08 | Konica Minolta Business Technologies Inc | Image forming apparatus |
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