JP2003107819A - Tubular resin molding and method of manufacturing the same - Google Patents
Tubular resin molding and method of manufacturing the sameInfo
- Publication number
- JP2003107819A JP2003107819A JP2001298452A JP2001298452A JP2003107819A JP 2003107819 A JP2003107819 A JP 2003107819A JP 2001298452 A JP2001298452 A JP 2001298452A JP 2001298452 A JP2001298452 A JP 2001298452A JP 2003107819 A JP2003107819 A JP 2003107819A
- Authority
- JP
- Japan
- Prior art keywords
- position detection
- resin
- resin tubular
- detection mark
- tubular molded
- 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]
【発明の属する技術分野】本発明は、樹脂からなる管状
成形体およびその製造方法に関する。TECHNICAL FIELD The present invention relates to a tubular molded body made of a resin and a method for producing the same.
【０００２】[0002]
【従来の技術】近年、電子写真装置には、中間転写、媒
体搬送、画像定着などの用途で、樹脂からなる管状成形
体が用いられている。特に、フルカラー機器に用いられ
る中間転写用の樹脂管状成形体においては、シアン、マ
ゼンタ、イエロー、ブラックの４色のトナーを正確に重
ね合わせる為、駆動時における極めて高精度な位置制御
が不可欠である。このような用途に用いられる樹脂管状
成形体の位置制御は、樹脂管状体端部に位置検知穴を設
け、位置検知穴と透過型光センサーの組み合わせにより
位置を決定する方法、若しくは、樹脂管状成形体の端部
に、ホットスタンプ若しくは粘着テープによる位置検知
マークを設け、反射型の光センサー、吸収型の光センサ
ー、またはこれらの組み合わせにより位置を決定する方
法が知られている。2. Description of the Related Art In recent years, tubular moldings made of resin have been used in electrophotographic apparatuses for applications such as intermediate transfer, medium conveyance, and image fixing. Particularly, in a resin tubular molded body for intermediate transfer used in a full-color device, it is necessary to control the position with extremely high precision during driving in order to accurately superimpose four color toners of cyan, magenta, yellow and black. . Position control of resin tubular moldings used for such applications is performed by providing a position detection hole at the end of the resin tubular body and determining the position by combining the position detection hole and a transmissive optical sensor, or resin tubular molding There is known a method of providing a position detection mark by a hot stamp or an adhesive tape on an end of a body and determining a position by a reflection type optical sensor, an absorption type optical sensor, or a combination thereof.
【０００３】しかしながら、特開２０００−２２１８５
６号公報に代表される位置検知穴を設ける方法では、樹
脂管状体を張り渡す際にかけられる応力により位置検知
穴近傍でクラックが入り、その結果樹脂管状体が破損し
てしまうという問題を有している。また、ホットスタン
プや粘着テープにより位置検知マークを設ける場合、接
着力が樹脂管状成形体の材料に左右され、特に最外層が
フッ素系樹脂の場合には接着力が極めて弱く、短時間で
位置検知マークの剥離を起こしてしまう。また、この方
法では位置検知マークの端部に必ず段差が生じ、この段
差部にトナーが堆積するという問題を有していた。この
堆積トナーは、中間転写体の残留トナーを除去する一般
的な方法である、ブレードを用いた方法では除去しきれ
ないことが多く、中間転写体上に形成されたトナー像を
汚染してしまうことがあった。さらには、位置検知マー
クが中間転写体表面から突出している構造であるため、
前述のブレードにより位置検知マークの剥離・除去を促
進せしめるという欠陥を有していた。この問題を解決す
る為に、特開平８−２３１０２６号公報では、予め基材
と反射率の異なる位置検知マークを設けるか位置検知用
穴を設けたテープを外面−端部全周に貼り付ける技術が
開示されている。しかしながらこの方法においても、有
限の段差部は生じるため、段差部に堆積するトナーの問
題は解決されていないのが現状である。However, Japanese Unexamined Patent Publication No. 2000-22185.
The method of providing the position detection hole represented by Japanese Patent No. 6 has a problem that a stress is applied when the resin tubular body is stretched and a crack is generated in the vicinity of the position detection hole, resulting in damage to the resin tubular body. ing. In addition, when the position detection mark is provided by hot stamping or adhesive tape, the adhesive force depends on the material of the resin tubular molding, and especially when the outermost layer is a fluororesin, the adhesive force is extremely weak and the position detection can be performed in a short time. It causes peeling of the mark. Further, this method has a problem that a step is always generated at the end of the position detection mark, and the toner is deposited on the step. The accumulated toner is often not completely removed by a method using a blade, which is a general method for removing the residual toner on the intermediate transfer body, and contaminates the toner image formed on the intermediate transfer body. There was an occasion. Furthermore, since the position detection mark has a structure protruding from the surface of the intermediate transfer member,
It had a defect that the above-mentioned blade promotes the peeling / removal of the position detection mark. In order to solve this problem, Japanese Patent Application Laid-Open No. 8-231026 discloses a technique in which a position detection mark having a reflectance different from that of a base material is previously provided or a tape provided with a position detection hole is attached to the outer surface-the entire circumference of the end portion. Is disclosed. However, even in this method, since a finite step portion is generated, the problem of toner deposited on the step portion has not been solved at present.
【０００４】[0004]
【発明が解決しようとする課題】本発明者らは、上記問
題を解決すべく鋭意研究を重ねた結果、樹脂管状成形体
へのクラックや位置検知マークの剥離、さらには段差部
に生じるトナーの堆積が極めて少ない樹脂管状成形体を
発明するに至ったのである。As a result of intensive studies to solve the above problems, the inventors of the present invention have found that cracks and peeling of position detection marks are caused in the resin tubular molded body, and that the toner generated in the step portion is The inventors have invented a resin tubular molded body with extremely little accumulation.
【０００５】[0005]
【課題を解決するための手段】本発明は、上記目的を達
成する樹脂管状成形体および樹脂管状成形体の製造方法
を本提供する。DISCLOSURE OF THE INVENTION The present invention provides a resin tubular molded body and a method for producing the resin tubular molded body which achieve the above object.
【０００６】すなわち、本発明の樹脂管状成形体は、基
材と反射率の異なる位置検知マークを設けた樹脂管状成
形体であって、樹脂管状成形体上に予め設けられた厚み
の小さい部位に、位置検知マークを設けてあることを特
徴とする。That is, the resin tubular molded article of the present invention is a resin tubular molded article provided with a position detection mark having a reflectance different from that of the base material, and the resin tubular molded article is provided on the resin tubular molded article in a portion having a small thickness in advance. A position detection mark is provided.
【０００７】好ましくは、前記位置検知マークを含めた
該マーク上における平均厚みと該マーク周辺部における
平均厚みの差が１０μｍ以下である。Preferably, the difference between the average thickness on the mark including the position detection mark and the average thickness on the periphery of the mark is 10 μm or less.
【０００８】本発明の樹脂管状成形体の一つの実施態様
として、最外層が、フッ素系樹脂を主成分とする樹脂管
状体が挙げられる。As one embodiment of the resin tubular molded article of the present invention, there is a resin tubular article whose outermost layer is mainly composed of a fluororesin.
【０００９】さらに、位置検知マークの接触面が、フッ
素系樹脂を実質的に含まない樹脂層であることで、本発
明の効果が好ましく発現されうる。Furthermore, the contact surface of the position detection mark is a resin layer which does not substantially contain a fluororesin, whereby the effects of the present invention can be preferably exhibited.
【００１０】また、本発明の樹脂管状成形体の製造方法
は、樹脂管状成形体上に予め設けられた厚みの小さい部
位に、位置検知マークを含めた該マーク上における平均
厚みと該マーク周辺部における平均厚みの差が１０μｍ
以下となるように位置検知マークを設けることを特徴と
する。Further, in the method for manufacturing a resin tubular molded body of the present invention, the average thickness on the mark including the position detection mark and the peripheral portion of the mark are provided in a portion of the resin tubular molded body having a small thickness provided in advance. Difference in average thickness at 10 μm
It is characterized in that the position detection mark is provided as follows.
【００１１】[0011]
【発明の実施の形態】本発明の樹脂管状成形体は、基材
と反射率の異なる位置検知マークを設けた樹脂管状成形
体であって、樹脂管状成形体上に予め設けられた厚みの
小さい部位に、位置検知マークを設けていることを特徴
とする。図１はその断面概略図である。この厚みの小さ
い部位と、その他の部位の厚みの差とほぼ同一の厚みを
有する位置検知マークを設けることで、従来不可避であ
った位置検知マーク端部での段差が実質的に解消され、
その結果段差部のトナー堆積を劇的に低減することが出
来る。さらには、位置検知マークが樹脂管状成形体に埋
め込まれた構造となるため、残留トナー除去用のブレー
ドによって位置検知マークの全てが剥離・除去されるこ
とはなく、位置検知マークの寿命、ひいては樹脂管状成
形体の寿命を飛躍的に延ばすことが可能となる。BEST MODE FOR CARRYING OUT THE INVENTION The resin tubular molded article of the present invention is a resin tubular molded article provided with a position detection mark having a reflectance different from that of a base material and having a small thickness previously provided on the resin tubular molded article. It is characterized in that a position detection mark is provided on the part. FIG. 1 is a schematic sectional view thereof. By providing a position detection mark having a thickness that is substantially the same as the difference between the thickness of this small portion and the thickness of the other portions, the step at the end of the position detection mark, which was inevitable in the past, is substantially eliminated.
As a result, it is possible to dramatically reduce the toner accumulation on the step portion. Furthermore, since the position detection mark is embedded in the resin tubular molded body, the blade for removing the residual toner does not peel or remove all of the position detection mark. It becomes possible to dramatically extend the life of the tubular molded body.
【００１２】本発明の主旨によれば、段差は小さければ
小さいほど好ましいが、トナーの粒径を考慮すると、位
置検知マークを含めた該マーク上における平均厚みと該
マーク周辺部における平均厚みの差が１０μｍ以下、よ
り好ましくは５μｍ以下であることが本発明の効果を十
分に発揮できるため望ましい。位置検知マーク周辺部と
は、位置検知マークから１０ｍｍ以内の、位置検知マー
ク以外の場所のことをいい、寄り防止のリブ加工が施さ
れている場合はその加工部を含まない。According to the gist of the present invention, the smaller the step, the more preferable. However, considering the toner particle size, the difference between the average thickness on the mark including the position detection mark and the average thickness in the peripheral portion of the mark. Is preferably 10 μm or less, more preferably 5 μm or less, because the effects of the present invention can be sufficiently exhibited. The peripheral portion of the position detection mark refers to a place within 10 mm from the position detection mark, other than the position detection mark, and does not include the processed portion when rib processing for preventing deviation is performed.
【００１３】位置検知マークの材質はその種別を問わ
ず、樹脂や金属など、従来既知の材料を用いることが出
来る。さらに、位置検知マークの形成方法に関してもそ
の種別を問わない。塗布、接着、焼結など、位置検知マ
ークや樹脂管状成形体の材質に応じて任意の方法を用い
ることが出来る。Regardless of the type of the material of the position detection mark, conventionally known materials such as resin and metal can be used. Further, the method of forming the position detection mark may be of any type. Any method such as application, adhesion, and sintering can be used depending on the position detection mark and the material of the resin tubular molded body.
【００１４】厚みの小さい部位を形成する方法は特に限
定されないが、予め作成した樹脂管状体の一部にマスキ
ングテープ等でマスキングし、樹脂管状体の表面をさら
に別の樹脂等でコーティングした後にマスキングを取り
除く方法や、研磨による方法が挙げられる。The method of forming the portion having a small thickness is not particularly limited, but a part of the resin tubular body prepared in advance is masked with a masking tape or the like, and the surface of the resin tubular body is further coated with another resin or the like and then masked. And a method by polishing.
【００１５】樹脂管状成形体の材料に関しては特に限定
されないが、フッ素系樹脂を主成分とする最外層を有
し、フッ素系樹脂以外の樹脂、例えばポリイミド、ポリ
アミドイミド、ポリカーボネートなどを主成分とする内
層を有する多層構造であるものが、本発明の効果を最も
有効に発揮できるため好ましい。即ち、フッ素系樹脂を
主成分とする最外層を任意の方法で除去した厚みの小さ
い部位に位置検知マークを設けることで、位置検知マー
クの剥離を激減せしめることが可能となるものである。
なお、最外層の形成に用いられる樹脂成分を図１中では
樹脂成分１として図示しており、内層の形成に用いられ
る樹脂成分を樹脂成分２として図示している。The material of the resin tubular molded body is not particularly limited, but it has an outermost layer containing a fluorine-based resin as a main component, and contains a resin other than the fluorine-based resin such as polyimide, polyamide-imide, or polycarbonate as a main component. A multilayer structure having an inner layer is preferable because the effects of the present invention can be most effectively exhibited. That is, by providing the position detection mark on a portion having a small thickness, which is obtained by removing the outermost layer containing the fluorine-based resin as a main component, the peeling of the position detection mark can be drastically reduced.
The resin component used for forming the outermost layer is shown as resin component 1 in FIG. 1, and the resin component used for forming the inner layer is shown as resin component 2.
【００１６】本発明に係る樹脂管状成形体には、最終的
に得られる樹脂管状成形体の特性を制御するために、有
機、無機材料を問わず、さまざまな材料を導入すること
ができる。例えば、抵抗値の制御の目的にはカーボンブ
ラックをはじめとする導電性無機粉体を樹脂中に適量混
合する方法が最も効果的である。カーボンブラック以外
にも小径金属粒体、金属酸化物粒体、また酸化チタンや
各種無機粒体・ウイスカーを金属酸化物など導電性物質
で皮膜形成したもの等が、同様の効果を得ることができ
る。さらには、ＬｉＣｌ等のイオン導電性物質の添加も
可能である。熱伝導性を制御する目的には、例えば窒化
アルミニウム、窒化ホウ素、アルミナ、炭化珪素、珪
素、シリカ、グラファイト等があげられる。なかでも、
熱伝導機能が高く、離型効果を発揮し、化学的に安定
で、無害であるという点で、窒化ホウ素が好ましい。Various materials can be introduced into the resin tubular molded article according to the present invention, regardless of organic or inorganic materials, in order to control the properties of the finally obtained resin tubular molded article. For example, for the purpose of controlling the resistance value, a method of mixing an appropriate amount of conductive inorganic powder such as carbon black in a resin is most effective. In addition to carbon black, small-diameter metal particles, metal oxide particles, titanium oxide and various inorganic particles / whiskers coated with a conductive material such as metal oxide, etc. can obtain the same effect. . Furthermore, it is also possible to add an ion conductive substance such as LiCl. For the purpose of controlling the thermal conductivity, for example, aluminum nitride, boron nitride, alumina, silicon carbide, silicon, silica, graphite and the like can be mentioned. Above all,
Boron nitride is preferable because it has a high heat conduction function, exhibits a releasing effect, is chemically stable, and is harmless.
【００１７】また、本発明に係る樹脂管状成形体とは、
中空状成型体を意味し、その径や厚みの大小を問わな
い。従ってベルトと呼ばれる事の多い大口径のものに
も、チューブと呼ばれる事の多い小径のものについても
適用することができるものである。また、シームレスの
成形体であっても、フィルムを重ねあわせや突合せの手
段を用いつなぎ合わせ、中空状成形体としたものについ
ても適用することができる。The resin tubular molded body according to the present invention is
It means a hollow molded body, regardless of its diameter or thickness. Therefore, it can be applied to a large diameter one often called a belt and a small diameter one often called a tube. Further, even a seamless molded product can be applied to a hollow molded product obtained by joining films using a means for overlapping or butting.
【００１８】[0018]
【実施例】次に、本発明に係わる樹脂管状成形体の製造
方法を実施例により詳しく説明する。EXAMPLES Next, the method for producing a resin tubular molded body according to the present invention will be described in detail by way of Examples.
【００１９】（実施例１）攪拌翼がついた容器に、モレ
キュラーシーブにて十分に脱水したジメチルホルムアミ
ド（ＤＭＦ）を１５００ｇ入れ、４、４’−ジアミノジ
フェニルエーテル２００ｇを加え、完全に溶解するまで
攪拌した。この系を約０℃に冷却し、ピロメリット酸二
無水物２１８ｇを徐々に加え、よく攪拌した。系の粘度
が約３×１０2Ｐａ・ｓになったところで攪拌を停止
し、ポリイミド前駆体溶液を得た。Example 1 1500 g of dimethylformamide (DMF) sufficiently dehydrated with a molecular sieve was placed in a vessel equipped with a stirring blade, 200 g of 4,4'-diaminodiphenyl ether was added, and the mixture was stirred until completely dissolved. did. The system was cooled to about 0 ° C., 218 g of pyromellitic dianhydride was gradually added, and the mixture was stirred well. When the viscosity of the system reached about 3 × 10 2 Pa · s, stirring was stopped to obtain a polyimide precursor solution.
【００２０】次に石原産業社製金属フィラーＦＴ−１０
００ ６０ｇとＤＭＦ３００ｇを別の容器に入れ、よく
攪拌し、さらに超音波分散機にかけることで分散液中の
金属フィラーを均一に分散させた。ＦＴ−１０００はそ
の表面にアンチモンをドープした酸化錫をコートした酸
化チタンからなる針状フィラーであり、その平均長軸長
は約１．６８μｍである。Next, a metal filler FT-10 manufactured by Ishihara Sangyo Kaisha, Ltd.
00 g and DMF 300 g were put in another container, stirred well, and further subjected to an ultrasonic disperser to uniformly disperse the metal filler in the dispersion. FT-1000 is a needle-like filler made of titanium oxide whose surface is coated with antimony-doped tin oxide, and its average major axis length is about 1.68 μm.
【００２１】上記で得られた針状フィラー分散液を、１
９６ｇ採取し、よく攪拌した。このビーカー中に、上記
で得られたポリイミド前駆体溶液３００ｇを溶かし入
れ、さらによく攪拌した。このようにして、硬化後のポ
リイミドの乾燥重量１００重量部に対して、金属フィラ
ー約５０重量部含有する樹脂管状成形体原料を調製し
た。The needle-like filler dispersion liquid obtained above was added to 1
96 g was collected and stirred well. Into this beaker, 300 g of the polyimide precursor solution obtained above was dissolved and further stirred. In this way, a raw material for a resin tubular molded body containing about 50 parts by weight of a metal filler was prepared based on 100 parts by weight of the cured polyimide.
【００２２】上記で得られた樹脂管状成形体原料を、内
径８２ｍｍφ、長さ４５０ｍｍのガラス管の内壁に、焼
成後の厚みが６０μｍとなるよう均一に流延塗布し、塗
布膜に自己支持性が発現するまで１００℃で１０分間加
熱した。次いで、塗布膜を該ガラス管から取り外し、外
径８０ｍｍφのＳＵＳ製金型に装着し、１００℃から３
８０℃まで、約３０分かけて昇温した。その後、系を室
温まで冷却し、ポリイミド管状成形体を得た。The raw material for the resin tubular molded body obtained above is uniformly cast on the inner wall of a glass tube having an inner diameter of 82 mmφ and a length of 450 mm so that the thickness after firing is 60 μm, and the coating film is self-supporting. It heated at 100 degreeC for 10 minute (s) until it expressed. Then, the coating film was removed from the glass tube, mounted on a SUS mold having an outer diameter of 80 mmφ, and the temperature was changed from 100 ° C. to 3
The temperature was raised to 80 ° C. over about 30 minutes. Then, the system was cooled to room temperature to obtain a polyimide tubular molded body.
【００２３】この樹脂管状成形体の端部に、８×８ｍｍ
2の正方形に切断した３Ｍ社製ポリイミドテープを貼付
し、ダイキン工業社製ＰＴＦＥ樹脂原料タフコートエナ
メルＴＣ−７８０９ＢＫを、焼成後の厚みが約１５μｍ
となるよう、スプレー塗布した。次いで、該ポリイミド
管状成形体を２８０℃のオーブンに投入し、２０分間加
熱・焼成した。At the end portion of this resin tubular molded body, 8 × 8 mm
A polyimide tape manufactured by 3M Co., which is cut into a square of 2 , is attached, and a PTFE resin raw material tough coat enamel TC-7809BK manufactured by Daikin Industry Co., Ltd. has a thickness of about 15 μm after firing.
Was spray applied. Next, the polyimide tubular molded body was placed in an oven at 280 ° C. and heated and baked for 20 minutes.
【００２４】系を室温まで冷却した後、ポリイミドテー
プを剥がし、当該位置に白色塗料からなる位置検知マー
クを乾燥後の厚みが約１５μｍとなるよう塗布・乾燥さ
せ、目的の樹脂管状成形物を得た。After cooling the system to room temperature, the polyimide tape was peeled off, and a position detection mark made of white paint was applied and dried at the position so that the thickness after drying was about 15 μm, to obtain the desired resin tubular molding. It was
【００２５】上述の手段で得られた位置検知マーク付き
樹脂管状成形体の、中間転写ベルトとして用いた際の画
像評価、位置検知テスト、厚み評価を行った。An image evaluation, a position detection test, and a thickness evaluation of the resin tubular molded product with the position detection mark obtained by the above means when used as an intermediate transfer belt were performed.
【００２６】中間転写ベルトとして用いた際の画像評価
は、以下の手順で行った。得られたポリイミド管状成形
体を、複写機であるリコー製フルカラー複写機プリテー
ルに搭載し中間転写ベルトとして用い、Ａ４サイズの画
像を１００００枚形成せしめた。その後、さらに１枚の
画像を形成せしめ、その画像の評価を行った。 該複写
機についてカラー画像が完成するまでの過程を簡単に説
明する。感光体に静電潜像が形成された後、現像ユニッ
トにより各色（シアン、マゼンタ、イエロー、ブラッ
ク）の現像が繰り返され、感光体上に各々の色画像（ト
ナー像）が順次形成される。各色トナー像は、それぞれ
単色毎に中間転写ベルト上の同じ位置に順次重なって転
写される。この転写は、転写バイアスローラに印加され
た所定のバイアス電圧によって生じる。中間転写ベルト
上に転写された後、紙転写バイアスローラにより、紙等
の転写材に一括転写される。転写完了後、該転写材は、
定着装置に送られてトナー像が定着され、フルカラー画
像となって現れる。Image evaluation when used as an intermediate transfer belt was carried out by the following procedure. The obtained polyimide tubular molded article was mounted on a Ricoh full-color copying machine Puritail, which is a copying machine, and used as an intermediate transfer belt to form 10,000 A4 size images. After that, one more image was formed and the image was evaluated. The process of completing a color image on the copying machine will be briefly described. After the electrostatic latent image is formed on the photoconductor, development of each color (cyan, magenta, yellow, black) is repeated by the developing unit, and each color image (toner image) is sequentially formed on the photoconductor. The toner images of the respective colors are sequentially transferred to the same position on the intermediate transfer belt so as to be superimposed on each other for each single color. This transfer is caused by a predetermined bias voltage applied to the transfer bias roller. After being transferred onto the intermediate transfer belt, it is collectively transferred onto a transfer material such as paper by a paper transfer bias roller. After the transfer is completed, the transfer material is
The toner image is sent to the fixing device and fixed, and appears as a full-color image.
【００２７】位置検知テストは、以下の方法で行った。
前述の複写機プリテール内に樹脂管状成形体を搭載し、
該樹脂管状成形体の鉛直上方に光電センサーを設けた。
次いで、該樹脂管状成形体を中間転写ベルトとして用
い、Ａ４サイズの画像を１００００枚形成せしめた後
に、吸収反応及び反射反応で位置検知マークの位置を検
出した。The position detection test was conducted by the following method.
The resin tubular molding is installed in the above-mentioned copying machine pre-tail,
A photoelectric sensor was provided vertically above the resin tubular molded body.
Next, the resin tubular molded body was used as an intermediate transfer belt to form 10,000 A4 size images, and then the position of the position detection mark was detected by absorption reaction and reflection reaction.
【００２８】厚み評価は、０．１μｍの分解能を有する
精密厚み計を用いて行い、５点の平均値を、その部位の
厚みとした。The thickness was evaluated by using a precision thickness meter having a resolution of 0.1 μm, and the average value of 5 points was taken as the thickness of that portion.
【００２９】その結果、該ポリイミド管状成形体を用い
て得られた画像に、画像の汚れは見られず、極めて良好
な画像が形成できた。また、位置検知テストでは、白色
位置検知マーク部で反射反応を、その他の部分で吸収反
応を示し、確実に位置を検出することができた。また、
厚みは、位置検知マーク部で７３．４μｍ、位置検知マ
ーク周辺部で７５．８μｍであり、その差は１．４μｍ
であった。As a result, the image obtained by using the polyimide tubular molded body did not show image stains, and an extremely good image could be formed. In the position detection test, the white position detection mark part showed a reflection reaction and the other parts showed an absorption reaction, and the position could be detected reliably. Also,
The thickness is 73.4 μm in the position detection mark part and 75.8 μm in the peripheral part of the position detection mark, and the difference is 1.4 μm.
Met.
【００３０】（実施例２）ＰＴＦＥ樹脂原料をスプレー
塗布する前にポリイミドテープを貼付しないこと、及
び、ＰＴＦＥ樹脂の焼成後、樹脂管状体の端部の８×８
ｍｍ2の領域を＃４００のエメリーペーパーを用いてＰ
ＴＦＥ樹脂を剥離せしめ、当該位置に位置検知マークを
塗布することを除いて、実施例１と同様に樹脂管状成形
体を得た。Example 2 No polyimide tape was applied before spray coating the PTFE resin raw material, and after the PTFE resin was baked, 8 × 8 of the end portion of the resin tubular body was formed.
Pitch the area of mm 2 using # 400 emery paper.
A resin tubular molded body was obtained in the same manner as in Example 1 except that the TFE resin was peeled off and the position detection mark was applied to the position.
【００３１】その結果、該ポリイミド管状成形体を用い
て得られた画像に、画像の汚れは見られず、極めて良好
な画像が形成できた。また、位置検知テストでは、白色
位置検知マーク部で反射反応を、その他の部分で吸収反
応を示し、確実に位置を検出することができた。また、
厚みは、位置検知マーク部で７６．２μｍ、位置検知マ
ーク周辺部で７４．１μｍであり、その差は２．１μｍ
であった。As a result, the image obtained by using the polyimide tubular molded body was free from image stains and an extremely good image could be formed. In the position detection test, the white position detection mark part showed a reflection reaction and the other parts showed an absorption reaction, and the position could be detected reliably. Also,
The thickness is 76.2 μm in the position detection mark part and 74.1 μm in the peripheral part of the position detection mark, and the difference is 2.1 μm.
Met.
【００３２】（比較例１）ＰＴＦＥ樹脂原料をスプレー
塗布する前にポリイミドテープを貼付しないこと、及
び、ＰＴＦＥ樹脂の焼成後、樹脂管状体の端部の８×８
ｍｍ2の領域に乾燥後の厚みが約７μｍとなるよう位置
検知マークを塗布することを除いて、実施例１と同様に
樹脂管状成形体を得た。(Comparative Example 1) Do not attach a polyimide tape before spray-coating a PTFE resin raw material, and after firing the PTFE resin, 8 × 8 at the end of the resin tubular body.
A resin tubular molded body was obtained in the same manner as in Example 1 except that the position detection mark was applied to the area of mm 2 so that the thickness after drying was about 7 μm.
【００３３】その結果、約７０００枚の画像形成後に位
置検知マークが剥離し、そのため、それ以降得られた画
像に色ずれが生じた。位置検知テストでは、位置検知マ
ークが剥離したため、位置を検出することができなかっ
た。また、厚みは、位置検知マーク部で８０．５μｍ、
位置検知マーク周辺部で７３．７μｍであり、その差は
６．８μｍであった。As a result, the position detection marks were peeled off after the formation of about 7,000 sheets of images, which caused color shift in the images obtained thereafter. In the position detection test, the position could not be detected because the position detection mark was peeled off. The thickness is 80.5 μm at the position detection mark portion,
The area around the position detection mark was 73.7 μm, and the difference was 6.8 μm.
【００３４】（比較例２）ＰＴＦＥ樹脂原料をスプレー
塗布する前にポリイミドテープを貼付しないこと、及
び、ＰＴＦＥ樹脂の焼成後、樹脂管状体の端部の８×８
ｍｍ2の領域に正方形の位置検知マーク穴を形成せしめ
ることを除いて、実施例１と同様に樹脂管状成形体を得
た。(Comparative Example 2) No polyimide tape was applied before spray coating the PTFE resin raw material, and after the PTFE resin was fired, 8 × 8 at the end of the resin tubular body was used.
A resin tubular molded body was obtained in the same manner as in Example 1 except that a square position detection mark hole was formed in the area of mm 2 .
【００３５】その結果、約５０００枚の画像形成後に位
置検知マーク付近から樹脂管状成形体が破断した。As a result, the resin tubular molding was broken from the vicinity of the position detection mark after the formation of about 5000 images.
【００３６】以上、本発明に係わる樹脂管状成形体につ
いて説明したが、本発明は上述の形態に限定されるもの
ではない。例示するまでもなく記述した範囲内で種々の
変形を加えた態様で実施できるものである。Although the resin tubular molded article according to the present invention has been described above, the present invention is not limited to the above-mentioned embodiment. Needless to say, it can be implemented in various modifications within the range described.
【００３７】[0037]
【発明の効果】本発明によれば、以上説明したように、
樹脂管状成形体へのクラックや位置検知マークの剥離・
除去、さらには段差部に生じるトナーの堆積が極めて少
ない樹脂管状成形体およびその製造方法を提供すること
ができる。そのため、電子写真装置の消耗品である樹脂
管状成形体の寿命が飛躍的に向上し、ひいては、電子写
真装置のランニングコストを劇的に低減させることが可
能となる。According to the present invention, as described above,
Peeling of cracks and position detection marks on resin tubular moldings
It is possible to provide a resin tubular molded body that is extremely small in removal, and further, in which toner accumulation on a step portion is extremely small, and a manufacturing method thereof. Therefore, the life of the resin tubular molded body, which is a consumable item of the electrophotographic apparatus, is dramatically improved, and the running cost of the electrophotographic apparatus can be dramatically reduced.
【００３８】このように、この種従来例に存した課題が
すべて解決される等、本発明の発揮する効果は、顕著に
して大である。As described above, the effects of the present invention are remarkably large, such that all the problems existing in this type of conventional example are solved.
【図１】予め設けられた厚みの小さい部位に位置検知マ
ークを設けた樹脂管状成形体一例の模式図である。FIG. 1 is a schematic view of an example of a resin tubular molded body in which a position detection mark is provided in a preliminarily provided portion having a small thickness.
１ 位置検知マーク ２ 樹脂成分１ ３ 樹脂成分２ 1 Position detection mark 2 Resin component 1 3 Resin component 2
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2H071 BA41 DA09 DA32 EA18 2H200 FA04 GA47 GB21 HA02 HB12 HB22 JA02 JC01 JC04 JC05 JC09 JC13 JC15 JC16 JC17 JC20 MA04 MA12 MA13 MA14 MA20 MB01 MC08 PB15 PB25 PB39 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 2H071 BA41 DA09 DA32 EA18 2H200 FA04 GA47 GB21 HA02 HB12 HB22 JA02 JC01 JC04 JC05 JC09 JC13 JC15 JC16 JC17 JC20 MA04 MA12 MA13 MA14 MA20 MB01 MC08 PB15 PB25 PB39
Claims (5)
設けた樹脂管状成形体であって、樹脂管状成形体上に予
め設けられた厚みの小さい部位に、位置検知マークを設
けてあることを特徴とする、樹脂管状成形体。1. A resin tubular molded body provided with a position detection mark having a reflectance different from that of a base material, wherein the position detection mark is provided at a portion having a small thickness provided on the resin tubular molded body in advance. A resin tubular molded body characterized by:
ける平均厚みと該マーク周辺部における平均厚みの差が
１０μｍ以下であることを特徴とする、請求項１記載の
樹脂管状成形体。2. The resin tubular molding according to claim 1, wherein a difference between the average thickness on the mark including the position detection mark and the average thickness in the peripheral portion of the mark is 10 μm or less.
ことを特徴とする、請求項１または２記載の樹脂管状成
形体。3. The resin tubular molded product according to claim 1, wherein the outermost layer contains a fluorine-based resin as a main component.
脂を実質的に含まない樹脂層であることを特徴とする、
請求項３記載の樹脂管状成形体。4. The contact surface of the position detection mark is a resin layer containing substantially no fluororesin,
The resin tubular molded body according to claim 3.
の小さい部位に、位置検知マークを含めた該マーク上に
おける平均厚みと該マーク周辺部における平均厚みの差
が１０μｍ以下となるように位置検知マークを設けるこ
とを特徴とする、樹脂管状成形体の製造方法。5. A difference between the average thickness on the mark including the position detection mark and the average thickness in the peripheral portion of the mark is 10 μm or less at a portion having a small thickness provided in advance on the resin tubular molded body. A method for producing a resin tubular molded body, comprising providing a position detection mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001298452A JP2003107819A (en) | 2001-09-27 | 2001-09-27 | Tubular resin molding and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001298452A JP2003107819A (en) | 2001-09-27 | 2001-09-27 | Tubular resin molding and method of manufacturing the same |
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| Publication Number | Publication Date |
|---|---|
| JP2003107819A true JP2003107819A (en) | 2003-04-09 |
Family
ID=19119348
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|---|---|---|---|
| JP2001298452A Pending JP2003107819A (en) | 2001-09-27 | 2001-09-27 | Tubular resin molding and method of manufacturing the same |
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| Country | Link |
|---|---|
| JP (1) | JP2003107819A (en) |
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