JPS60166975A - Silicone rubber for heat fixing roll - Google Patents
Silicone rubber for heat fixing rollInfo
- Publication number
- JPS60166975A JPS60166975A JP14253584A JP14253584A JPS60166975A JP S60166975 A JPS60166975 A JP S60166975A JP 14253584 A JP14253584 A JP 14253584A JP 14253584 A JP14253584 A JP 14253584A JP S60166975 A JPS60166975 A JP S60166975A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- silicone oil
- rubber
- silicone
- silicone rubber
- 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.)
- Granted
Links
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
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は電子複写技術における粉体トナーの加熱定着装
置用ロールの表面形成用ゴムに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a rubber for forming the surface of a roll for a heat fixing device for powder toner in electronic copying technology.
電子複写技術における粉体トナーの加熱定着用装置は少
なくとも２本のロールの間を未定着トナーを有する紙そ
の他の記録体を通過させることによりトナーを定着させ
る仕組みである。これは他の定着装置にくらべ低電力で
かつ装置を小型化できる特徴を有する。A device for heating and fixing powder toner in electronic copying technology is a mechanism for fixing toner by passing paper or other recording medium containing unfixed toner between at least two rolls. This fixing device uses less power than other fixing devices and has the advantage of being able to be made smaller.
一般の定着用ロールは加熱ロールとバックアップロール
から成り、各ロール異面はナト２フルオロエチレン、シ
リコーンゴム等の層で構成されている（特開昭５２−２
４３９号公報参照）。通常記録体のトナー面は加熱ロー
ルと接触するようになっている。A general fixing roll consists of a heating roll and a backup roll, and each roll has a different surface made of a layer of nato 2 fluoroethylene, silicone rubber, etc.
(See Publication No. 439). Usually, the toner surface of the recording medium is brought into contact with the heating roll.
この装置ではトナー等の粘着性物質が加熱ロール表面に
付着（オフセット現象）するのを防止する必要がある。In this device, it is necessary to prevent sticky substances such as toner from adhering to the surface of the heating roll (offset phenomenon).
シリコーンオイル等のオフセット防止用の離型剤の塗布
が有効であり、実際に使用されている。また離型性のよ
い室温加硫シリコーンゴムを用いても離型剤の併用が必
要であった。Applying a mold release agent such as silicone oil to prevent offset is effective and is actually used. Further, even when room temperature vulcanized silicone rubber with good mold release properties is used, it is necessary to use a mold release agent in combination.
つまりオフセット防止用液体としてシリコーンオイルを
供給しなければみじかいライフしか有せず、またシリコ
ーンオイルの表面添加によってもゴム自体がオイルによ
り膨潤して強度が低下しさらにはゴムとロール支持体（
通常金属）の接着が不良となる等の欠点があり、長寿命
が得られなかった。In other words, if silicone oil is not supplied as an anti-offset liquid, it will only have a short lifespan, and even if silicone oil is added to the surface, the rubber itself will swell with the oil and its strength will decrease, and the rubber and roll support (
There were drawbacks such as poor adhesion of metal (usually metal), and a long life could not be achieved.
この対策案として、室温硬化型シリコーンゴムにあらか
じめ大量のオイルを含ませる方法がとられている（特開
昭４８−６２４３６号公報、特開昭５２−１３１７３０
号公報参照）。これにはいわゆる環状シロキサンを含む
室温硬化型シリコーンゴムが用いられている。この方式
では、シリコーンオイルが出てしまうと急激に離型性が
低下し、オフセットが発生して寿命となる。オイル成分
を大量に含む室温硬化型シリコーンゴムはゴム特性がロ
ールの条件を満足せず、熱変形、圧縮永久歪、ゴム硬度
等の基本的な特性を満足させるためには添加するオイル
成分に上限があった。また、加熱ロールにしてもバック
アップロールにしてもシリコーンゴムを表面にすると、
１５００〜２００Ｃの高温になった状態で使用されるの
で、オイル成分の表面へのしみ出しが早く、寿命を縮め
る要因となっていた。As a countermeasure to this problem, a method has been adopted in which room-temperature curing silicone rubber is impregnated with a large amount of oil in advance (Japanese Unexamined Patent Publications No. 48-62436, No. 52-131730).
(see publication). Room temperature curing silicone rubber containing so-called cyclic siloxane is used for this purpose. In this method, when silicone oil comes out, the mold releasability deteriorates rapidly, offset occurs, and the product life ends. Room-temperature-curing silicone rubber that contains a large amount of oil has rubber properties that do not satisfy the roll conditions, and in order to satisfy basic properties such as thermal deformation, compression set, and rubber hardness, there is an upper limit to the amount of oil that can be added. was there. Also, if the surface is made of silicone rubber, whether it is a heating roll or a backup roll,
Since they are used at a high temperature of 1,500 to 200 C, oil components seep out quickly onto the surface, causing a shortened lifespan.
本発明は加熱定着ロールの長期にわたる離型性保持すな
わちオフセット防止を目的とするもので、シリコーンゴ
ム中に含まれるシリコーンオイルの表面への浸み出しを
長期にわたるよう改良したものである。The purpose of the present invention is to maintain the releasability of the heat fixing roll over a long period of time, that is, to prevent offset, and is an improvement to prevent silicone oil contained in silicone rubber from seeping out onto the surface over a long period of time.
本発明の加熱定着ロール用シリコーンゴムは、シリコー
ンオイルと該オイルに対し１０〜２０重量％の微粉末シ
リカとを含む生ゴム組成物を硬化させて得られるシリコ
ーンオイルを吸着したロール表面形成用のシリコーンゴ
ムであることを特徴とする。The silicone rubber for heat fixing rolls of the present invention is a silicone rubber for forming the roll surface that has adsorbed silicone oil obtained by curing a raw rubber composition containing silicone oil and 10 to 20% by weight of finely powdered silica based on the oil. It is characterized by being made of rubber.
本発明で使用するシリコーンゴムはジメチルポリシロキ
サン、メチルフェニルポリシロキサン。The silicone rubber used in the present invention is dimethylpolysiloxane or methylphenylpolysiloxane.
メチルビニルポリシロキサン、メチルフェニルビニルポ
リシロキサン等の生ゴムに天然酸化物、天然産けいそう
土等の充填剤、有機酸の加硫剤を加えて硬化させたもの
で、特に、室温硬化型シリコーンゴムが最も有用である
。It is made by adding natural oxides, fillers such as naturally produced diatomaceous earth, and organic acid vulcanizing agents to raw rubber such as methylvinylpolysiloxane and methylphenylvinylpolysiloxane and curing it.In particular, room temperature curing silicone rubber. is the most useful.
離型用のシリコーンオイルは高温安定性の優れたものが
よく、ジメチルシリコーンオイル、メチルフェニルシリ
コーンオイルが優している。Silicone oil for mold release should have excellent high-temperature stability, with dimethyl silicone oil and methylphenyl silicone oil being good choices.
ロールに使用する基体は鉄、アルミニウム、銅、ステン
レス鋼、真ちゅう等が用いられる。The base material used for the roll is made of iron, aluminum, copper, stainless steel, brass, or the like.
またこれらのロール基体と表面ノーのシリコーンゴムと
の接着方向上のためにプラズマ、例えばビニルトリメト
キシシラン、ｒ−メタクリロキシプロピルトリメトキシ
シラン、ビニルトリス（ｔ−ブチルベルオキシン）シラ
ン等の不飽和結合を有するシラン＠またはそれらの加水
分解網金物などが用いられる。In addition, due to the direction of adhesion between the roll base and the silicone rubber on the surface, plasma can be used to form unsaturated bonds such as vinyltrimethoxysilane, r-methacryloxypropyltrimethoxysilane, vinyltris(t-butylberoxine)silane, etc. A silane@ having the following or a hydrolyzed wire mesh thereof is used.
微粉末シリカは数ＩＱｎｍのものがよく、オイルに対し
１０〜２０重量％が適する。これはオイルコンパウンド
の性状を示す。Fine powder silica is preferably several IQ nm in size, and is suitably used in an amount of 10 to 20% by weight based on the oil. This indicates the properties of the oil compound.
また、オイルコンパウンドは、ロールの中心に近い部分
すなわちゴムの基体との接触部分に多く含むことが望ま
しく、オイルコンパウンドリッチのゴム層を巻き、その
後、オイルコンパウンドプアのノーを巻くような２層の
ゴム層となしてもよい。In addition, it is desirable to contain a large amount of oil compound in the area near the center of the roll, that is, the area in contact with the rubber base. It may also be a rubber layer.
以下、実施例を示す。尚、以下の例中に部とあるのは重
量部を意味する。Examples are shown below. In addition, parts in the following examples mean parts by weight.
実施例１
（ａ） ジメチルポリシロキサン（生ゴム、粘度２．５
Ｘ１０’ストークス、末端がビニルジメチルシリル基）
１０００部
（ｂ） こはく酸ジアリル ５０部
（ｅ） スズオクトエート １０部
（ｄ） ベンガラ ２部
（ｅ）微粉末シリカ（エアロゾル）２０重量％を含むジ
メチルシリコーンオイル １５０部上記（ａ）〜（ｅ”
）からなる組成物を通常の方法で架橋させた。即ち、室
温に７日放置後、１８０ｔＺ’、４時間キュアさせて、
基体−ヒにゴム表面層を形成ｌ〜た。ゴム厚は３ｍであ
る。このゴムロールステンレスロールと組合せて加熱定
着ロールとして用いて、定着テストを行った。ゴム圧力
を両端（長さ３０ｃ１ｎ）で各３０にりの荷重をかけ、
未定着トナーを有する厚さ７５μｍの紙を通してオフセ
ットの発生を試験した。紙中２０ｃｍのロール紙（長さ
ｉｏｏｍ）を用い、２０ｃｍ／秒の速度で連続定着を行
った。加熱はロール内部にヒータを入れた構造であり、
ロール表面温度が１５０Ｃを示すように自動制御した。Example 1 (a) Dimethylpolysiloxane (raw rubber, viscosity 2.5
X10'Stokes, terminal is vinyldimethylsilyl group)
1000 parts (b) Diallyl succinate 50 parts (e) Tin octoate 10 parts (d) Red iron 2 parts (e) Dimethyl silicone oil containing 20% by weight of finely powdered silica (aerosol) 150 parts (a) to (e) above. ”
) was crosslinked in a conventional manner. That is, after leaving it at room temperature for 7 days, it was cured for 4 hours at 180tZ',
A rubber surface layer was formed on the substrate. The rubber thickness is 3 m. A fixing test was conducted using this rubber roll in combination with a stainless steel roll as a heat fixing roll. Apply rubber pressure to both ends (length 30cm) and apply a load of 30cm to each end.
The occurrence of offset was tested through 75 μm thick paper with unfused toner. Continuous fixing was performed at a speed of 20 cm/sec using a roll paper (length ioom) with 20 cm in the paper. Heating is done using a heater inside the roll.
The roll surface temperature was automatically controlled to be 150C.
上記ロールを用いると加熱ロール表面にトナーが転写す
るまでに９８０巻の紙ロールを通過させることができた
。比較例としてオイルコンパウンドを含まない組成でロ
ールを作成して同様のテストを行った。このロールは２
００巻でオフセットの発生があった。従って、実施例品
は比較例品の４．９倍の長寿命を示すことがわかった。When the above roll was used, 980 rolls of paper could be passed through before the toner was transferred to the surface of the heating roll. As a comparative example, a roll was made with a composition that did not contain an oil compound and a similar test was conducted. This roll is 2
An offset occurred in the 00th volume. Therefore, it was found that the example product exhibited 4.9 times longer life than the comparative example product.
実施例２
実施例１で用いたシリコーンゴム組成物にメチルヒニ°
ルホリシロキサン（ジメチルシロキサン９９％に対しメ
チルビニルシロキサン１０％のモル比）５０部をさらに
加えた組成でゴムロールを作成し同様のテストを行った
。１０２０巻の紙ロールを定着後、オフセットの発生が
みられた。この場合も、前記比較例品の２００巻にくら
べ、５倍の長寿命を示すことがわかった。Example 2 Methylhinyl was added to the silicone rubber composition used in Example 1.
A rubber roll was prepared with a composition in which 50 parts of fluorolisiloxane (mole ratio of 10% methylvinylsiloxane to 99% dimethylsiloxane) was further added, and the same test was conducted. After fixing 1020 paper rolls, offset was observed. In this case as well, it was found that the lifespan was five times longer than that of the comparative example product with 200 rolls.
実施例３
前記実施例１において、シリコーンオイルの量を２００
部（シリコーンゴムに対して２０重量％）に変更した他
は該実施例１と同じ要領にて加熱定着ロールを製作した
。このものの寿命は前記比較例品の５．５倍でめった。Example 3 In Example 1, the amount of silicone oil was changed to 200
A heat fixing roll was manufactured in the same manner as in Example 1 except that the amount of the heat-fixing roll was changed to 20% by weight based on the silicone rubber. The life of this product was 5.5 times that of the comparative example product.
以上説明した通り、本発明によればシリコーンゴム中に
含マレるシリコーンオイルのロール表面への浸み出しが
長期にわたるように改良できるから、加熱定着ロールの
離型性が永続し長寿命化が図れるという効果がある。As explained above, according to the present invention, it is possible to improve the leakage of silicone oil contained in silicone rubber onto the roll surface over a long period of time, so that the releasability of the heat fixing roll is permanent and its life is extended. It has the effect of being able to
Claims (1)
であって、シリコーンオイルと該オイルに対し１０〜２
０重量％の微粉末シリカとを含む生ゴム組成物を硬化さ
せて得られるシリコーンオイルを吸着した微粉末シリカ
を含む加熱定着ロール用シリコーンゴム。1. Silicone rubber forming the surface layer of the heat fixing roll, which has a silicone oil and a 10 to 2
A silicone rubber for a heat fixing roll, which contains fine powder silica adsorbing silicone oil obtained by curing a raw rubber composition containing 0% by weight of fine powder silica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14253584A JPS60166975A (en) | 1984-07-09 | 1984-07-09 | Silicone rubber for heat fixing roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14253584A JPS60166975A (en) | 1984-07-09 | 1984-07-09 | Silicone rubber for heat fixing roll |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1762278A Division JPS5848903B2 (en) | 1978-02-20 | 1978-02-20 | Heat fixing roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60166975A true JPS60166975A (en) | 1985-08-30 |
| JPS6243182B2 JPS6243182B2 (en) | 1987-09-11 |
Family
ID=15317612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14253584A Granted JPS60166975A (en) | 1984-07-09 | 1984-07-09 | Silicone rubber for heat fixing roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60166975A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63239479A (en) * | 1987-03-27 | 1988-10-05 | Showa Electric Wire & Cable Co Ltd | Thermal fixing roller |
| EP0351797A2 (en) * | 1988-07-19 | 1990-01-24 | Canon Kabushiki Kaisha | Silicone composition, elastic revolution body and fixing device using the same |
| EP0374951A2 (en) * | 1988-12-23 | 1990-06-27 | Canon Kabushiki Kaisha | Silicone composition, elastic revolution body and fixing device using the composition |
| CN110791229A (en) * | 2019-12-05 | 2020-02-14 | 东莞市源岭硅胶科技有限公司 | Oil-yielding silica gel and preparation method thereof |
-
1984
- 1984-07-09 JP JP14253584A patent/JPS60166975A/en active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63239479A (en) * | 1987-03-27 | 1988-10-05 | Showa Electric Wire & Cable Co Ltd | Thermal fixing roller |
| EP0351797A2 (en) * | 1988-07-19 | 1990-01-24 | Canon Kabushiki Kaisha | Silicone composition, elastic revolution body and fixing device using the same |
| US5354612A (en) * | 1988-07-19 | 1994-10-11 | Canon Kabushiki Kaisha | Revolution body having an elastic layer of dimethylsilicone rubber formed from polysiloxane and silicic acid fine powder |
| US5643973A (en) * | 1988-07-19 | 1997-07-01 | Canon Kabushiki Kaisha | Silicone composition, elastic revolution body and fixing device using the same |
| EP0374951A2 (en) * | 1988-12-23 | 1990-06-27 | Canon Kabushiki Kaisha | Silicone composition, elastic revolution body and fixing device using the composition |
| US5364697A (en) * | 1988-12-23 | 1994-11-15 | Canon Kabushiki Kaisha | Silicon composition, elastic revolution body and fixing device using the composition |
| US5684064A (en) * | 1988-12-23 | 1997-11-04 | Canon Kabushiki Kaisha | Silicone composition, elastic revolution body and fixing device using the composition |
| CN110791229A (en) * | 2019-12-05 | 2020-02-14 | 东莞市源岭硅胶科技有限公司 | Oil-yielding silica gel and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6243182B2 (en) | 1987-09-11 |
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