JPH0310109B2 - - Google Patents
Info
- Publication number
- JPH0310109B2 JPH0310109B2 JP11494981A JP11494981A JPH0310109B2 JP H0310109 B2 JPH0310109 B2 JP H0310109B2 JP 11494981 A JP11494981 A JP 11494981A JP 11494981 A JP11494981 A JP 11494981A JP H0310109 B2 JPH0310109 B2 JP H0310109B2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- fixing
- fixing device
- fluororesin
- toner image
- 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.)
- Expired
Links
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 8
- 150000004767 nitrides Chemical class 0.000 claims description 8
- 229910052582 BN Inorganic materials 0.000 claims description 5
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 5
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 2
- 238000000576 coating method Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2053—Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating
- G03G15/2057—Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating relating to the chemical composition of the heat element and layers thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Description
本発明は、定着ローラや定着プレート等の定着
部材にトナー像支持材を接触して搬送することに
より、像の定着処理をするようにした定着装置に
関する。
例えば、加熱された定着ローラでトナー像支持
材を加圧搬送し、その際の熱でトナーを溶融して
支持剤に定着させるように構成された定着装置で
は、溶融トナーが定着ローラに粘着したり、また
その粘着性によつてトナー像支持材がローラに巻
き付いたりする不都合を防止するために、定着ロ
ーラにテフロン（デユポン社・商品名）やシリコ
ーンゴムの離型性表面被覆を施したり、更にその
被覆にシリコーンオイルの如き離型液を塗布した
りしている。しかしテフロンやシリコーンゴムの
ような表面被覆は熱によつて次第に酸化する等し
て当初の離型性能が劣化していく。そのため、オ
フセツトやトナー像支持材の巻き付きが発生する
ようになつているが、これを防止するには、離型
液の塗布厚を増したりしなければならず、その場
合、液によるトナー像支持剤の汚れが発生するよ
うになる。またテフロンやシリコーンのような材
料は、トナー像を熱定着するに必要な170〜200℃
程度でも軟化してしまいそのため、トナー像支持
剤の加圧搬送を繰り返すにつれて表面が荒れてい
き、その傷の中にトナー材料が目詰まりして離型
性を劣化させるうえに、定着力も損つてしまこう
ことになる。さらに、例えば、耐熱性不織布など
により定着ローラをクリーニングする場合など、
ローラー表面と耐熱性不織布が摺動することによ
り、摩擦され、ローラ表面が摩耗したり、あるい
は表面が荒れたりする不都合もあつた。
このような理由で、前述の定着ローラは寿命の
短かい恐れがあつた。
そこで本発明の目的は、上述した従来装置の問
題点を解決することである。而して本発明の定着
装置は、トナー像支持材を定着部材に接触搬送さ
せて像の定着を行なう定着装置に於いて、上記定
着部材の表面を弗素樹脂により被覆する際、弗素
樹脂の中に窒化物のセラミツクを分散させること
を特徴とするものである。これによつて本発明は
離型性を劣化させることなく、耐摩耗性を向上さ
せた定着装置を提供するものである。
以下、図面を参照して本発明の一実施例を説明
する。
第１図は、本発明の一実施例を適用した定着装
置の断面図である。
図において、１は定着ローラで、金属、ガラス
あるいは樹脂等で形成された硬質芯パイプ２に、
窒化物のセラミツクスを分散させた弗素樹脂（こ
こで弗素樹脂としては、例えば４弗化エチレン樹
脂、PFA樹脂、あるいはFEP樹脂等）の被覆３
をほどこしたものである。またこのローラ１内に
は、ハロゲンランプの如き熱源４が配置されてお
り、これによつてローラ１表面はトナーを熱溶融
定着可能な温度、通常170〜200℃程度に加熱され
ている。また１ａは加圧ローラで、剛性芯ロール
７にシリコーンゴムのような弾性体層８を厚く被
覆して成る。このローラ１ａはバネ等（図示せ
ず）の弾性力によつてローラ１に圧接され、それ
によつて層８が変形してトナー像１０を支持して
いる支持紙１１を圧接するニツプ部を形成する。
なおローラ１，１ａは夫々矢印方向（矢印ａ，ｂ
方向）に回転し、ガイド９を通つて進入して来た
トナー像支持紙１１を挟圧搬送し、その際、トナ
ー像１０が加熱溶融定着される。そしてこのと
き、支持紙１１の未定着トナー像支持面１１ａ
は、ローラ１に密着せしめられ像の定着が行なわ
れわけである。そしてローラ１，１ａのニツプ部
１６を通過した紙１１は、ガイド１２に導びかれ
て定着装置外へ排出される。
また５は爪状の分離部材であり、定着ローラ１
に巻き付いた紙を分離するものである。また６，
１３，１４，１５で構成される装置は、耐熱ウエ
ツプ６によるクリーニング手段である。このクリ
ーニング手段は６−６ナイロン等の不織布ででき
たウエツブ６を、ローラ１３から巻き取りローラ
１５に巻き取る途中で押さえローラ１４により定
着ローラ１に押しつけ、定着ローラ１上のオフセ
ツトトナーやその他の不要物をクリーニングする
ものである。ウエツブ６の面が汚れると、ウエツ
ブ６が矢印方向に移動し、新しい面がローラ１表
面に摺擦するように構成されている。
なお本発明は、PFA樹脂の中に窒化硼素を５
〜10％分散させ、離型性、摩耗性等試験した結
果、以下のような効果のあることを確認した。
いま、PFA樹脂単体Ａ、PFA樹脂に窒化硼素
を分散させたものＢ、PFA樹脂にNi金属粉を分
散させたものＣ、について試験した結果を表１に
表わす。
The present invention relates to a fixing device that fixes an image by conveying a toner image support material in contact with a fixing member such as a fixing roller or a fixing plate. For example, in a fixing device configured to convey a toner image support material under pressure with a heated fixing roller, and use the heat generated to melt the toner and fix it to the support material, the molten toner adheres to the fixing roller. In order to prevent the inconvenience of the toner image support material being wrapped around the roller due to its adhesiveness, the fixing roller is coated with a releasable surface coating such as Teflon (trade name of Dupont) or silicone rubber. Furthermore, a release liquid such as silicone oil is applied to the coating. However, surface coatings such as Teflon and silicone rubber gradually oxidize due to heat, and their initial mold release performance deteriorates. As a result, offset and wrapping of the toner image support material have begun to occur, but in order to prevent this, it is necessary to increase the coating thickness of the release liquid. Contamination of the agent will occur. In addition, materials such as Teflon and silicone require temperatures of 170 to 200 degrees Celsius to heat-fix the toner image.
As a result, as the toner image support material is repeatedly conveyed under pressure, the surface becomes rough, and the toner material becomes clogged in the scratches, deteriorating the release properties and impairing the fixing power. I'll have to leave it there. Furthermore, for example, when cleaning the fixing roller with heat-resistant nonwoven fabric, etc.
When the roller surface and the heat-resistant nonwoven fabric slide against each other, friction occurs, causing the roller surface to wear out or become rough. For this reason, the above-mentioned fixing roller may have a short lifespan. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the problems of the conventional device described above. The fixing device of the present invention fixes an image by conveying a toner image support material in contact with a fixing member, and when the surface of the fixing member is coated with a fluororesin, the inside of the fluororesin is removed. It is characterized by dispersing nitride ceramics in it. As a result, the present invention provides a fixing device with improved wear resistance without deteriorating mold releasability. Hereinafter, one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a fixing device to which an embodiment of the present invention is applied. In the figure, 1 is a fixing roller, which is attached to a hard core pipe 2 made of metal, glass, resin, etc.
Coating 3 of fluororesin (here, the fluororesin includes, for example, tetrafluoroethylene resin, PFA resin, or FEP resin) in which nitride ceramics are dispersed.
It has been given. A heat source 4 such as a halogen lamp is disposed within the roller 1, and the surface of the roller 1 is heated to a temperature at which the toner can be thermally fused and fixed, usually about 170 to 200°C. Further, reference numeral 1a denotes a pressure roller, which is formed by covering a rigid core roll 7 with a thick elastic layer 8 such as silicone rubber. This roller 1a is pressed against the roller 1 by the elastic force of a spring or the like (not shown), thereby deforming the layer 8 to form a nip portion that presses against the support paper 11 supporting the toner image 10. do.
Note that the rollers 1 and 1a are moved in the direction of the arrows (arrows a and b), respectively.
direction), and conveys the toner image supporting paper 11 that has entered through the guide 9 under pressure, and at this time, the toner image 10 is heated and melted and fixed. At this time, the unfixed toner image supporting surface 11a of the support paper 11
The image is fixed by being brought into close contact with the roller 1. The paper 11 that has passed through the nip portion 16 of the rollers 1 and 1a is guided by a guide 12 and discharged out of the fixing device. Further, 5 is a claw-shaped separation member, and the fixing roller 1
This is to separate the paper that is wrapped around the paper. Also 6,
The device composed of 13, 14, and 15 is a cleaning means using a heat-resistant wipe 6. This cleaning means presses a web 6 made of a non-woven fabric such as 6-6 nylon against the fixing roller 1 with a presser roller 14 while winding it up from a roller 13 to a take-up roller 15, thereby removing offset toner and other particles on the fixing roller 1. It is used to clean unnecessary items. When the surface of the web 6 becomes dirty, the web 6 moves in the direction of the arrow, and the new surface rubs against the surface of the roller 1. In addition, in the present invention, boron nitride is added to the PFA resin.
As a result of dispersing ~10% and testing the mold releasability, abrasion resistance, etc., it was confirmed that the following effects were achieved. Table 1 shows the results of tests conducted on PFA resin alone A, B in which boron nitride is dispersed in PFA resin, and C in which Ni metal powder is dispersed in PFA resin.
【表】
◎…良好 ○…やや劣る △…劣る
試験結果は、上記表１に示したようになり、窒
化硼素を分散させた場合、離型性を維持しつつし
かも耐摩耗性が著しく向上することが確認され
た。
なお窒化物セラミツクスである窒化硼素は、そ
れ自体硬度はさほど硬くないが、耐熱温度が高
く、且つ表面が軟化することがなく、化学的に安
定している為、長期にわちり離型性と、弗素樹脂
の耐摩耗性を維持することができる。
また本発明は、実施例に示したような加熱定着
装置ばかりでなく圧力定着装置にも適用すること
ができること勿論である。
また窒化物セラミツクスとして、窒化硅素，窒
化アルミニウム等を分散させても良好な結果が得
られる。
以上述べた様に本発明は、弗素樹脂の中に窒化
物のセラミツクスを分散させることにより耐摩耗
性、離型性を向上させた定着装置を提供するもの
である。[Table] ◎...Good ○...Slightly poor △...Poor The test results are shown in Table 1 above, and when boron nitride is dispersed, the wear resistance is significantly improved while maintaining the mold releasability. This was confirmed. Boron nitride, which is a nitride ceramic, is not very hard in itself, but it has a high heat resistance, does not soften the surface, and is chemically stable, so it has excellent mold releasability over a long period of time. , the wear resistance of fluororesin can be maintained. Furthermore, it goes without saying that the present invention can be applied not only to the heat fixing device as shown in the embodiments, but also to a pressure fixing device. Good results can also be obtained by dispersing silicon nitride, aluminum nitride, etc. as nitride ceramics. As described above, the present invention provides a fixing device with improved abrasion resistance and mold releasability by dispersing nitride ceramics in a fluororesin.
第１図は本発明の一実施例を適用した定着装置
の断面図である。
図において、１……定着ローラ、１ａ……加圧
ローラ、３……窒化物あるいは炭化物のセラミツ
クスを分散させた弗素樹脂の被覆、１１……支持
紙、１２……ガイド。
FIG. 1 is a sectional view of a fixing device to which an embodiment of the present invention is applied. In the figure, 1...fixing roller, 1a...pressure roller, 3...fluororesin coating in which nitride or carbide ceramics are dispersed, 11...support paper, 12...guide.
Claims (1)
像定着する定着装置に於いて、 上記定着部材の表面を窒化物セラミツクスを含
む弗素樹脂で被覆したことを特徴とする定着装
置。 ２ 前記窒化物セラミツクスが窒化硼素であるこ
とを特徴とした特許請求の範囲第１項記載の定着
装置。 ３ 前記弗素樹脂が４弗化エチレン樹脂であるこ
とを特徴とした特許請求の範囲第１項に記載の定
着装置。 ４ 前記弗素樹脂がPFA樹脂あるいはFEP樹脂
であることを特徴とした特許請求の範囲第１項に
記載の定着装置。[Scope of Claims] 1. A fixing device that fixes an image by conveying a toner image support material in contact with a fixing member, characterized in that the surface of the fixing member is coated with a fluororesin containing nitride ceramics. Device. 2. The fixing device according to claim 1, wherein the nitride ceramic is boron nitride. 3. The fixing device according to claim 1, wherein the fluororesin is a tetrafluoroethylene resin. 4. The fixing device according to claim 1, wherein the fluororesin is PFA resin or FEP resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11494981A JPS5816273A (en) | 1981-07-21 | 1981-07-21 | Fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11494981A JPS5816273A (en) | 1981-07-21 | 1981-07-21 | Fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5816273A JPS5816273A (en) | 1983-01-29 |
| JPH0310109B2 true JPH0310109B2 (en) | 1991-02-12 |
Family
ID=14650639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11494981A Granted JPS5816273A (en) | 1981-07-21 | 1981-07-21 | Fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816273A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011102510A1 (en) | 2010-02-22 | 2011-08-25 | ダイヤニトリックス株式会社 | Stable aqueous acrylamide solution |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59125767A (en) * | 1983-01-07 | 1984-07-20 | Fuji Xerox Co Ltd | Heat fixing roll for electrophotograhic process |
| JP2515840B2 (en) * | 1988-03-11 | 1996-07-10 | 株式会社日立製作所 | Thermal fixing device |
| US5245392A (en) * | 1992-10-02 | 1993-09-14 | Xerox Corporation | Donor roll for scavengeless development in a xerographic apparatus |
| KR100476975B1 (en) * | 2002-12-20 | 2005-03-17 | 삼성전자주식회사 | Fusing roller of image forming apparatus |
| US8260184B2 (en) * | 2009-11-02 | 2012-09-04 | Xerox Corporation | Hyper nanocomposites (HNC) for fuser materials |
-
1981
- 1981-07-21 JP JP11494981A patent/JPS5816273A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011102510A1 (en) | 2010-02-22 | 2011-08-25 | ダイヤニトリックス株式会社 | Stable aqueous acrylamide solution |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5816273A (en) | 1983-01-29 |
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