JPH0395584A - Fixing roller - Google Patents
Fixing rollerInfo
- Publication number
- JPH0395584A JPH0395584A JP23177189A JP23177189A JPH0395584A JP H0395584 A JPH0395584 A JP H0395584A JP 23177189 A JP23177189 A JP 23177189A JP 23177189 A JP23177189 A JP 23177189A JP H0395584 A JPH0395584 A JP H0395584A
- Authority
- JP
- Japan
- Prior art keywords
- fixing roller
- roller
- resin
- solid lubricant
- solid lubricating
- 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
- 239000007787 solid Substances 0.000 claims abstract description 19
- 239000000314 lubricant Substances 0.000 claims abstract description 17
- 239000010410 layer Substances 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000002344 surface layer Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 239000013013 elastic material Substances 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 229920001971 elastomer Polymers 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000007665 sagging 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
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、静電複写機等の画像形成装置に装備される定
着ローラーに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a fixing roller installed in an image forming apparatus such as an electrostatic copying machine.
［従来の技術］
静電複写機等においては、複写紙上に形成したトナー像
を定着させるための定着装置として、ローラ一定着装置
がしばしば用いられている。このローラ一定着装置は、
加熱機構を有する定着ローラーと、これに圧接した加圧
ローラーと、これらを回転させる回転駆動機構より成り
、トナー像が形成された複写紙が両ローラー間に供給さ
れることによりトナー像を定着させるものである。[Prior Art] In electrostatic copying machines and the like, a roller fixing device is often used as a fixing device for fixing a toner image formed on copy paper. This roller fixation device is
It consists of a fixing roller with a heating mechanism, a pressure roller in pressure contact with the fixing roller, and a rotational drive mechanism that rotates these rollers, and the copy paper on which the toner image is formed is supplied between both rollers to fix the toner image. It is something.
かかるローラ一定着装置においては、複写紙の表面全面
を所要の均一な力で定着ローラーに圧接させるとともに
、両ローラーからの排出を円滑に行うため、弾性層のシ
リコーンゴム等が使用され、又、トナ一定着時のオフセ
ット性を向上させるため、表面層としてシリコーンゴム
，フッ素樹脂等が使用されている。In such a roller fixing device, an elastic layer of silicone rubber or the like is used in order to press the entire surface of the copy paper against the fixing roller with the required uniform force and to smoothly discharge the copy paper from both rollers. Silicone rubber, fluororesin, etc. are used as the surface layer to improve offset properties when the toner is fixed.
［発明が解決しようとする課題Ｊ
しかしながら、上記従来例の様に弾性体層や表面層が、
樹脂のみで構成される場合、次の様な問題点があった。[Problem to be solved by the invention J However, as in the above conventional example, the elastic layer and surface layer
When it is composed only of resin, there are the following problems.
（１）経時的にオフセット性が低下する。(1) Offset property deteriorates over time.
（２）樹脂の熱伝導率が小さいため、定着可能温度に達
するのに時間がかかり、また、短縮するためにはヒータ
ーの容量を大きくしなければならない。(2) Since the thermal conductivity of the resin is low, it takes time to reach the fixable temperature, and in order to shorten the time, the capacity of the heater must be increased.
すなわち、本発明の目的とするところは、層状構造を有
する固体潤滑剤が示す個々の結晶内部を貫いて行われる
せん断すべり（粒内すべり）、又は、結晶と結晶の間で
行われるせん断すべり（粒間すべり）等の潤滑作用を利
用し、オフセット性の経時変化を防止した定着ローラー
を供給するものである。That is, the object of the present invention is to suppress shear slip (intragranular slip) that occurs through the interior of individual crystals of a solid lubricant having a layered structure, or shear slip (intragranular slip) that occurs between crystals. It supplies a fixing roller that prevents changes in offset properties over time by utilizing lubricating effects such as intergranular sliding.
さらには、熱伝導性の良い固体潤滑剤を樹脂に添加し、
熱効率を向上させることにより、従来よりも定着温度の
低い定着ローラーを供給するものである。Furthermore, a solid lubricant with good thermal conductivity is added to the resin,
By improving thermal efficiency, a fixing roller with a lower fixing temperature than conventional ones is provided.
［課題を解決するための手段及び作用］本発明の特徴と
するところは、少なくとも金属等の芯体と樹脂の弾性体
層及び表面層とから成る定着ローラーにおいて、前記弾
性体層と前記表面層の少なくとも一方に固体潤滑剤の粉
末が混入されている定着ローラーとしている点にある。[Means and effects for solving the problems] The present invention is characterized in that, in a fixing roller comprising at least a core made of metal or the like, an elastic layer and a surface layer made of resin, the elastic layer and the surface layer The fixing roller has solid lubricant powder mixed in at least one of the fixing rollers.
ここで、前記固体潤滑剤は、層状構造である場合が好ま
しく、また、Ｉ Ｘ １０” Ｊ／ｃｍ−ｓｅｃ ・’
Ｃ以上の熱伝導率を有する固体潤滑剤を、樹脂１００重
量部に対し５〜３００重量部、好ましくは３０〜１００
重量部添加する。５重量部より少ない場合では、固体潤
滑性、または熱伝導性向」二の効果が小さく、３００重
量部を越える場合では、添加時における分散が充分なさ
れなくなる等の欠点が現れて好まし《ない。Here, the solid lubricant preferably has a layered structure, and I x 10" J/cm-sec ・'
5 to 300 parts by weight, preferably 30 to 100 parts by weight of a solid lubricant having a thermal conductivity of C or more per 100 parts by weight of the resin.
Add part by weight. If it is less than 5 parts by weight, the effect on solid lubricity or thermal conductivity will be small, and if it exceeds 300 parts by weight, it is not preferred because it may not be sufficiently dispersed during addition.
尚、固体潤滑剤の材料としては、窒化ほう素，窒化けい
素，二硫化モリブデン，二硫化タングステン，グラファ
イト，ふっ化黒鉛，カーボンブラック，ニッケルや銅等
の金属粉末１等がある。Note that materials for the solid lubricant include boron nitride, silicon nitride, molybdenum disulfide, tungsten disulfide, graphite, graphite fluoride, carbon black, and metal powders 1 such as nickel and copper.
以上のような要件を満たした固体潤滑剤を弾性体層又は
表面層に混入することで、かかる固体潤屑剤の結晶内部
で生じる粒内すべり、又は、結晶間で生じる粒関すへり
等の潤滑作用によりオフセッ１〜性の経時変化を防止す
ることができる。By mixing a solid lubricant that satisfies the above requirements into the elastic layer or surface layer, lubrication such as intragranular slip occurring inside the crystals of the solid lubricant or grain boundary sagging occurring between the crystals can be prevented. This action can prevent changes in offset properties over time.
また、従来に比べ熱伝導性が良くなるため、ローラー表
面の温度上昇に要する時間の短縮が図れ、さらに、熱効
率の実質的向上をもたらすことになる。Furthermore, since the thermal conductivity is improved compared to the conventional method, the time required for the temperature of the roller surface to rise can be shortened, and furthermore, thermal efficiency can be substantially improved.
［実施例］ 以下、実施例にて本発明を具体的に詳述する。[Example] Hereinafter, the present invention will be specifically explained in detail with reference to Examples.
丸息班ユ
射出成形機を用いて、シリコーンゴムの弾性体を有する
ローラーを成形後研磨して、外径４５ｍｍのローラーを
作った。次に、シリコーンー液型ＲＴＶゴム１００重量
部に対し、トルエン２００重量部、粒径７ＩＬｍのグラ
ファイト５０重量部を混合，分散し粘度３００ｃｐのＲ
ＴＶ塗料を調整した。かかるＲＴＶ塗料に前記ローラー
を浸漬塗布３回繰返した後、温度２５℃、相対湿度６０
％ＲＨの雰囲気中で７日間硬化させ、膜圧１２０ ｐｍ
のＲＴＶ層を有する定着ローラーを得 Ｉこ 。A roller having an elastic body made of silicone rubber was molded using a round molding injection molding machine and then polished to produce a roller having an outer diameter of 45 mm. Next, 200 parts by weight of toluene and 50 parts by weight of graphite with a particle size of 7 ILm were mixed and dispersed in 100 parts by weight of silicone-liquid type RTV rubber to give a RTV rubber with a viscosity of 300 cp.
Adjusted TV paint. After repeatedly dipping the roller into the RTV paint three times, the temperature was 25°C and the relative humidity was 60°C.
Cured for 7 days in an atmosphere of %RH, film thickness 120 pm
A fuser roller was obtained having an RTV layer of 1.
定着性確認用の複写機として、キヤノン製ＮＰ−６５５
０を用いて、定着ローラーのみ、上記のローラーを組み
込んでオフセット性の確認を行ったところ、１３０〜１
８０℃の範囲でオフセットが発生しないことが確認され
、また、ローラー表面温度が２５゜Ｃから１８０℃に上
昇するのに２分要した。Canon NP-655 was used as a copying machine for checking fixability.
When the offset property was confirmed by incorporating only the fixing roller and the above roller using 0, the result was 130 to 1.
It was confirmed that no offset occurred in the range of 80°C, and it took 2 minutes for the roller surface temperature to rise from 25°C to 180°C.
塩校豊ユ
ＲＴＶ塗料として、シリコーンー液型ＲＴＶゴム１００
重量部に対し、トルエン２００重量部を混合分散したも
のを使用した以外は、実施例１と同様にして定着ローラ
ーを得た。Silicone liquid type RTV rubber 100 as RTV paint
A fixing roller was obtained in the same manner as in Example 1, except that 200 parts by weight of toluene was mixed and dispersed in each part by weight.
この定着ローラーを用いて、実施例１と同様の確認を行
ったところ、１４０℃〜１９５℃の範囲でオフセットが
発生しないことが確認された。またローラー表面温度が
２５℃から１８０℃に上昇するのに３分要した。When the same confirmation as in Example 1 was performed using this fixing roller, it was confirmed that no offset occurred in the range of 140°C to 195°C. Further, it took 3 minutes for the roller surface temperature to rise from 25°C to 180°C.
及思里ユ
ＲＴＶ塗料として、シリコーンー液型ＲＴＶゴム１００
重量部に対し、トルエン２００重量部、粒径５Ｉ１．ｍ
の二硫化モリブデンを混合，分散したものを使用した以
外は、実施例１ど同様にして定着ローラーを得た。この
定着ローラーを用いて、実施例１と同じ定着装置に組み
込み、オフセット性の確認を連続して行ったところ、２
５００枚でもオフセットは発生しなかった。Silicone-liquid type RTV rubber 100 as an RTV paint
To part by weight, 200 parts by weight of toluene, particle size 5I1. m
A fixing roller was obtained in the same manner as in Example 1 except that molybdenum disulfide mixed and dispersed therein was used. Using this fixing roller, it was incorporated into the same fixing device as in Example 1, and the offset property was continuously confirmed.
No offset occurred even after 500 sheets.
え校盟ユ
比較例１と同様に作製した定着ローラーを用いて、実施
例１と同じ定着装置に組み込み、オフセット性の確認を
連続して行ったところ、２０００枚でオフセットが発生
した。A fixing roller manufactured in the same manner as in Comparative Example 1 was used and incorporated into the same fixing device as in Example 1, and the offset property was continuously checked, and offset occurred after 2000 sheets.
［発明の効果］
以上述べた様に、本発明の定着ローラーによれば、層状
構造を有する固体潤滑剤、または、熱伝導率の高い固体
潤滑剤を添加することにより、■．オフセット性の耐久
性が向上し、長寿命化が可能である。[Effects of the Invention] As described above, according to the fixing roller of the present invention, by adding a solid lubricant having a layered structure or a solid lubricant having high thermal conductivity, (1). The durability of offset property is improved and the life can be extended.
■．ローラー表面温度の上昇時間が短縮できる。■． The time required for the roller surface temperature to rise can be shortened.
■．定着可能な温度範囲を低く設定することができ、ヒ
ーターの容量を小さくできる。■． The temperature range that can be fixed can be set low, and the capacity of the heater can be reduced.
等の利点がある。There are advantages such as
第１図は、本発明の定着ローラーを使用した定着装置の
実施例における断面図である。
１，５・・・弾性体層
２，６・・・表面層
３・・・加熱機構
４・・・定着ローラー
７・・・加圧ローラー
８・・・複写紙
９・・・未定着トナーFIG. 1 is a sectional view of an embodiment of a fixing device using the fixing roller of the present invention. 1, 5... Elastic layer 2, 6... Surface layer 3... Heating mechanism 4... Fixing roller 7... Pressure roller 8... Copy paper 9... Unfixed toner
Claims (4)
ら成る定着ローラーにおいて、前記弾性体層と前記表面
層の少なくとも一方に、固体潤滑剤の粉末が混入されて
いることを特徴とする定着ローラー。(1) A fixing roller comprising at least a core, an elastic layer made of resin, and a surface layer, characterized in that solid lubricant powder is mixed in at least one of the elastic layer and the surface layer. Fusing roller.
する請求項１記載の定着ローラー。(2) The fixing roller according to claim 1, wherein the solid lubricant has a layered structure.
／ｃｍ・ｓｅｃ・℃以上であることを特徴とする請求項
１又は２記載の定着ローラー。(3) The thermal conductivity of the solid lubricant is 1×10^-^2J
3. The fixing roller according to claim 1, wherein the fixing roller has a temperature of /cm·sec·°C or more.
００重量部であることを特徴とする請求項１〜３いずれ
かに記載の定着ローラー。(4) The amount of the solid lubricant added to the resin material is 5 to 3
4. The fixing roller according to claim 1, wherein the fixing roller contains 0.00 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23177189A JPH0395584A (en) | 1989-09-08 | 1989-09-08 | Fixing roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23177189A JPH0395584A (en) | 1989-09-08 | 1989-09-08 | Fixing roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0395584A true JPH0395584A (en) | 1991-04-19 |
Family
ID=16928775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23177189A Pending JPH0395584A (en) | 1989-09-08 | 1989-09-08 | Fixing roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0395584A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9357654B2 (en) | 2014-03-03 | 2016-05-31 | Apple Inc. | Low-profile plug with cam and flexible circuit board |
-
1989
- 1989-09-08 JP JP23177189A patent/JPH0395584A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9357654B2 (en) | 2014-03-03 | 2016-05-31 | Apple Inc. | Low-profile plug with cam and flexible circuit board |
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