JPH05281869A - Elastic roller - Google Patents
Elastic rollerInfo
- Publication number
- JPH05281869A JPH05281869A JP8235892A JP8235892A JPH05281869A JP H05281869 A JPH05281869 A JP H05281869A JP 8235892 A JP8235892 A JP 8235892A JP 8235892 A JP8235892 A JP 8235892A JP H05281869 A JPH05281869 A JP H05281869A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- roller
- elastic
- resin
- quartz powder
- 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.)
- Withdrawn
Links
- 229920005989 resin Polymers 0.000 claims abstract description 37
- 239000011347 resin Substances 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 29
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 28
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 28
- 239000010453 quartz Substances 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 25
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 239000006185 dispersion Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000010304 firing Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 6
- 238000002844 melting Methods 0.000 abstract description 5
- 230000008018 melting Effects 0.000 abstract description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011737 fluorine Substances 0.000 abstract description 2
- 229910052731 fluorine Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 53
- 239000011248 coating agent Substances 0.000 description 13
- 238000000576 coating method Methods 0.000 description 13
- 229920002379 silicone rubber Polymers 0.000 description 12
- 239000004945 silicone rubber Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920001774 Perfluoroether Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はレーザプリンタや電子複
写機等のトナー定着部に用いられる弾性ローラに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elastic roller used in a toner fixing section of a laser printer, an electronic copying machine or the like.
【０００２】[0002]
【従来の技術】電子複写機やレーザプリンタのトナー定
着部ローラは加熱ローラと加圧ローラから構成され、加
熱ローラにより熱せられたトナーを加圧ローラによりそ
の間を通過される紙に圧着して紙上に転移してプリント
している。このような定着部ローラは通紙の安定性を図
り、鮮明な画像を得るため適度な弾性と、トナーとの離
型性のよいものが要求される。加えて定着部ローラを塔
載する電子複写機やレザープリンタの高速化、小型化の
要求に伴い、小型化、高速化が問題となっている。その
ため、芯金上の弾性体を設けただけの単層のローラで
は、ニップ幅が確保できる低硬度で、表面平滑で通紙性
がよく、しかも摩耗しにくい耐久性の優れたローラは得
られなかった。そのため芯金上に適度な弾性を有する弾
性体を設け、その上層に離型性のよい最外層が積層され
た多層構造のローラが用いられている。2. Description of the Related Art A toner fixing section roller of an electronic copying machine or a laser printer is composed of a heating roller and a pressure roller, and the toner heated by the heating roller is pressure-bonded to the paper passing between them by the pressure roller. Is transferred to and printed. The fixing unit roller is required to have appropriate elasticity and good releasability from the toner in order to stabilize the sheet passing and obtain a clear image. In addition, with the demand for higher speed and smaller size of electronic copying machines and laser printers equipped with fixing section rollers, downsizing and speeding up have become problems. Therefore, with a single-layer roller having only the elastic body on the cored bar, a roller with low hardness that can secure the nip width, smooth surface, good paper-passing property, and excellent durability can be obtained. There wasn't. Therefore, a roller having a multi-layer structure is used in which an elastic body having appropriate elasticity is provided on a cored bar, and an outermost layer having good releasability is laminated on the elastic body.
【０００３】このような多層構造のローラはかなりの高
温に加熱されるため、耐熱性であり、しかも熱伝導性が
よくなければならず、弾性体としてシリコーンゴムやフ
ッ素ゴムが使用され、最外層としてパーフロロアルコキ
シ樹脂（ＰＦＡ樹脂）やポリテトラフロロエチレン樹脂
（ＰＴＦＥ樹脂）等のフッ素樹脂が採用されている。多
層構造のローラを製造するには、最外層と成るフッ素樹
脂を予めチューブに成形し、このチューブに所望のニッ
プ幅が得られるシリコーンゴム等の弾性体を芯金上に形
成した弾性ローラを挿入するか、あるいは金型内壁に配
置したチューブ内に液状ゴムを注入するという方法で２
層に形成して、チューブ被覆ローラを形成するか、ある
いは未加硫のシート状のゴムを芯金に巻き付けられて設
けられた弾性体上にフッ素樹脂を塗布焼き付けたり、ま
たは静電粉体塗装等の方法により製造されていた。Since the roller having such a multilayer structure is heated to a considerably high temperature, it must have heat resistance and good thermal conductivity. Silicone rubber or fluororubber is used as an elastic body, and the outermost layer is used. As such, fluororesins such as perfluoroalkoxy resin (PFA resin) and polytetrafluoroethylene resin (PTFE resin) are adopted. To manufacture a roller with a multi-layer structure, the outermost layer of fluororesin is molded into a tube in advance, and then an elastic roller with an elastic body such as silicone rubber that provides the desired nip width formed on a core is inserted into this tube. Or by injecting liquid rubber into the tube placed on the inner wall of the mold.
Forming a layer to form a tube coating roller, or applying fluorocarbon resin to an elastic body provided by winding unvulcanized sheet-shaped rubber around a core metal, baking, or electrostatic powder coating And the like.
【０００４】[0004]
【発明が解決しようとする課題】しかし、弾性体の上に
ＰＦＡ樹脂、ＰＴＦＥ樹脂等のフッ素樹脂層を形成する
場合、チューブを用いても、また塗布焼き付けや、ある
いは静電粉体塗装等の方法によりフッ素樹脂層を成形し
ても、相互に加熱融着されにくく、一体化されなかっ
た。そのため、弾性体とフッ素樹脂層との密着が悪く、
フッ素樹脂層の剥離が生じ、傷の発生に結びついてしま
った。特に用紙の分離爪や温度センサの接触部分に用紙
のジャム化を契機として剥離が生じ、ローラの寿命が短
くなってしまった。However, when a fluororesin layer such as PFA resin or PTFE resin is formed on the elastic body, even if a tube is used, coating baking or electrostatic powder coating or the like is required. Even when the fluororesin layer was formed by the method, it was difficult to heat-bond each other and they were not integrated. Therefore, the adhesion between the elastic body and the fluororesin layer is poor,
Peeling of the fluororesin layer occurred, leading to the occurrence of scratches. In particular, the separation claw of the sheet and the contact portion of the temperature sensor are peeled off when the sheet is jammed, and the life of the roller is shortened.
【０００５】そのため、チューブ被覆ローラの場合は、
フッ素樹脂チューブの内面をエッチング処理して、シリ
コーンゴムとフッ素樹脂チューブの接着を図っていた。
塗布焼き付け、または静電粉体塗装等の方法により最外
層を形成する場合は、弾性体層に充填剤を加え弾性体層
の表面の充填剤を削り落とし空孔を形成させたり、弾性
体層の表面をサンドブラスト処理し、この空孔に最外層
を生成するフッ素樹脂を導入してアンカー効果を図った
ものもあった（特開平１−１４７５７７号公報）。Therefore, in the case of the tube coating roller,
The inner surface of the fluororesin tube was etched to bond the silicone rubber and the fluororesin tube.
When the outermost layer is formed by a method such as coating baking or electrostatic powder coating, a filler is added to the elastic layer to scrape off the filler on the surface of the elastic layer to form pores, or the elastic layer. There was also a method of sandblasting the surface of the above and then introducing a fluororesin that forms the outermost layer into the pores to achieve an anchor effect (Japanese Patent Laid-Open No. 1-147577).
【０００６】しかしながら、チューブ被覆ローラも、塗
布焼き付け、または静電粉体塗装等の方法を用いたもの
も弾性体層と、フッ素樹脂層の接着は充分とは言えず、
ローラの耐久性の点では満足のできるものではなかっ
た。本発明は上記の欠点を解消するためになされたもの
であって、高温においても長寿命であり、安定した通紙
が行なえ、トナーとの離型性がよく、しかもフッ素樹脂
チューブと弾性体とが強固に接着した耐久性に優れた弾
性ローラを提供することを目的とする。However, it cannot be said that the adhesion between the elastic body layer and the fluororesin layer is sufficient for the tube coating roller and the one using a method such as coating baking or electrostatic powder coating.
The durability of the roller was not satisfactory. The present invention has been made to solve the above-mentioned drawbacks, has a long life even at high temperatures, can perform stable paper passage, has good releasability from toner, and has a fluororesin tube and an elastic body. It is an object of the present invention to provide an elastic roller which is strongly adhered and has excellent durability.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するた
め、本発明の弾性ローラは、芯金上に弾性体層及びフッ
素樹脂層を積層した弾性ローラにおいて、前記弾性体層
はポリテトラフロロエチレン樹脂のディスパージョンを
焼成されて成る石英粉を含有するものである。In order to achieve the above object, the elastic roller of the present invention is an elastic roller in which an elastic layer and a fluororesin layer are laminated on a core metal, wherein the elastic layer is polytetrafluoroethylene. It contains quartz powder obtained by firing a dispersion of resin.
【０００８】[0008]
【作用】芯金上に積層される弾性体層に石英粉を加え
る。石英粉はポリテトラフロロエチレン樹脂のディスパ
ージョンと混合し、ポリテトラフロロエチレン樹脂の融
点以上の温度で焼成してポリテトラフロロエチレン樹脂
を成膜した後、弾性体層に加えることにより、弾性体層
上に形成されるフッ素樹脂層との密着を図り、フッ素樹
脂層と弾性体層とを強固に接着させる。それにより耐久
性の優れたローラを得ることができる。Function: Quartz powder is added to the elastic layer laminated on the cored bar. Quartz powder is mixed with a dispersion of polytetrafluoroethylene resin, baked at a temperature above the melting point of polytetrafluoroethylene resin to form a film of polytetrafluoroethylene resin, and then added to the elastic layer to form an elastic body. The fluororesin layer formed on the layer is closely adhered to firmly adhere the fluororesin layer and the elastic layer. Thereby, a roller having excellent durability can be obtained.
【０００９】[0009]
【実施例】本発明の弾性ローラを熱定着ローラに適用し
た一実施例を図面を参照して説明する。図１に示すよう
に、弾性ローラである熱定着ローラ１は芯金２上に弾性
体層３が作成されたローラ４の外周に最外層としてフッ
素樹脂層５が接着されて一体化されたものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the elastic roller of the present invention is applied to a heat fixing roller will be described with reference to the drawings. As shown in FIG. 1, the heat fixing roller 1 which is an elastic roller is one in which a fluororesin layer 5 is bonded as an outermost layer to the outer periphery of a roller 4 in which an elastic layer 3 is formed on a core metal 2 and is integrated. Is.
【００１０】芯金２は弾性体層３との接着のよい材質、
例えば、鉄、アルミニウム等で形成される。芯金２上に
形成される弾性体層３は熱による劣化が少ないものが好
ましく、通紙性を満足するよう適宜な弾性を備えたもの
であり、シリコーンゴム、フッ素ゴム等が用いられる。
特に熱による劣化が少ないものとして、シリコーンゴム
が用いられる。The core metal 2 is made of a material that is well adhered to the elastic layer 3,
For example, it is formed of iron, aluminum, or the like. The elastic layer 3 formed on the cored bar 2 is preferably one that is less likely to be deteriorated by heat and has appropriate elasticity so as to satisfy the paper passing property, and silicone rubber, fluororubber or the like is used.
Silicone rubber is used because it is less likely to be deteriorated by heat.
【００１１】このシリコーンゴムに石英粉を添加する。
石英粉は耐熱性であり、ローラ製造時、あるいはプリン
タ等に搭載した時の加熱による変化がなく、所望の粒径
のものが得られるため好適に用いられる。粒径は１〜１
０μｍが好ましい。この石英粉は予め、弾性体層３の上
層のフッ素樹脂層５を形成するフッ素樹脂ディスパージ
ョンに分散させ焼成する。フッ素樹脂としてはポリテト
ラフロロエチレン樹脂（ＰＴＦＥ樹脂）が好適であり、
ＰＴＦＥ樹脂を水等に分散させて用いてもよい。石英粉
の添加量はＰＴＦＥ樹脂１００重量部に対して１〜１０
重量部である。焼成温度はＰＴＦＥ樹脂の融点温度３２
７℃以上で行なう。ＰＴＦＥ樹脂の融点温度以上で行な
うことにより石英粉の周囲にＰＴＦＥ樹脂が確実に成膜
され、これによりシリコーンゴム中から石英粉が欠落せ
ずに留る。そして弾性体層３の形成後、表面を研削して
表面の石英粉を削り落とした場合、弾性体層３の表面に
確実に空洞を形成することができる。Quartz powder is added to this silicone rubber.
Quartz powder is suitable for use because it is heat resistant and does not change due to heating when the roller is manufactured or when it is mounted on a printer or the like and that it has a desired particle size. Particle size is 1 to 1
0 μm is preferable. The quartz powder is previously dispersed in the fluororesin dispersion forming the fluororesin layer 5 on the elastic layer 3 and fired. Polytetrafluoroethylene resin (PTFE resin) is suitable as the fluororesin,
The PTFE resin may be used by dispersing it in water or the like. The addition amount of quartz powder is 1 to 10 relative to 100 parts by weight of PTFE resin.
Parts by weight. The firing temperature is the melting point temperature 32 of the PTFE resin.
Perform at 7 ° C or higher. By carrying out at a temperature equal to or higher than the melting point temperature of the PTFE resin, the PTFE resin is surely deposited around the quartz powder, whereby the quartz powder remains in the silicone rubber without dropping out. When the surface of the elastic layer 3 is ground and the quartz powder on the surface is scraped off after the elastic layer 3 is formed, cavities can be reliably formed on the surface of the elastic layer 3.
【００１２】ＰＴＦＥ樹脂処理された石英粉は、弾性体
層を形成する未加硫のシリコーンゴム等に添加されて、
加熱され弾性体層が形成される。石英粉の添加量は弾性
体層３の所望の硬度が維持できる程度が好ましく、シリ
コーンゴム１００重量部に対して１０〜２００重量部で
ある。弾性体層３には他の充填剤を添加させてもよい。The quartz powder treated with the PTFE resin is added to unvulcanized silicone rubber or the like which forms the elastic layer,
The elastic layer is formed by heating. The amount of the quartz powder added is preferably such that the desired hardness of the elastic layer 3 can be maintained, and is 10 to 200 parts by weight with respect to 100 parts by weight of the silicone rubber. Other fillers may be added to the elastic layer 3.
【００１３】更に、最外層と成るフッ素樹脂は熱による
劣化が少なく、トナーとの離型性に優れ、摩擦係数の小
さいものであり、ポリフルオロアルコキシ樹脂（ＰＦＡ
樹脂）やポリテトラフロロエチレン樹脂（ＰＴＦＥ樹
脂）等から成る。このような構成の弾性ローラを作成す
るのは、芯金２をブラスト処理し、脱脂した後、弾性体
層３と接着性のよい接着剤を塗布する。弾性体層３を形
成するには、予めＰＴＦＥ樹脂処理された石英粉をシリ
コーンゴムに混練し、シート状に形成したものを芯金２
に巻きつけ、加熱、加硫する。あるいは芯金２の周囲に
ＰＴＦＥ樹脂処理された石英粉を混練したシリコーンゴ
ムを押出し、加熱、加硫してもよい。その後、表面を研
削し、表面の石英粉を落とし、表面に最外層となるフッ
素樹脂の粒子径より大きな凹部を形成し、ローラ４を形
成する。その表面にフッ素樹脂層５を形成する。フッ素
樹脂層５は溶液に分散させたフッ素樹脂液に含浸した
り、フッ素樹脂の塗布液を弾性体層３表面に塗布しても
よい。弾性体層３の厚さは、溶液粘度、含浸あるいは塗
布回数、速度、乾燥時間を調整し、所望の厚さになるよ
うにすればよい。Further, the fluororesin as the outermost layer is less likely to be deteriorated by heat, has excellent releasability from the toner, and has a small friction coefficient.
Resin) or polytetrafluoroethylene resin (PTFE resin). The elastic roller having such a structure is produced by blasting the cored bar 2 and degreasing it, and then applying an adhesive having good adhesiveness to the elastic layer 3. In order to form the elastic body layer 3, quartz powder that has been treated with PTFE resin in advance is kneaded with silicone rubber, and a sheet-shaped product is formed into the core metal 2.
Wrap, heat and vulcanize. Alternatively, silicone rubber obtained by kneading quartz powder treated with PTFE resin around the core metal 2 may be extruded, and heated and vulcanized. After that, the surface is ground to remove the quartz powder on the surface, and a recess having a diameter larger than the particle diameter of the fluororesin serving as the outermost layer is formed on the surface to form the roller 4. The fluororesin layer 5 is formed on the surface. The fluororesin layer 5 may be impregnated with a fluororesin solution dispersed in a solution, or a fluororesin coating solution may be applied to the surface of the elastic layer 3. The thickness of the elastic layer 3 may be adjusted to a desired thickness by adjusting the solution viscosity, the number of times of impregnation or coating, the speed, and the drying time.
【００１４】上記の説明は、本発明の一実施例の説明で
あって、本発明は熱定着ローラに限らず、耐熱性及び弾
性の要求されるローラに適用できる。 〈実施例〉以下実施例について説明する。平均粒子径
０．３μｍのＰＴＦＥ樹脂ディスパージョン３００ｇに
水１２００ｇを添加し、平均粒子径４μｍの石英粉３Ｋ
ｇに加え、撹拌した。その後、１８０℃で１時間乾燥
し、その後３５０℃で１０分焼成した。得られた石英粉
をシリコーンゴムに着色剤、加硫剤等と添加し、ミキシ
ングロールで混練し、２ｍｍ厚さのシート状にした。こ
のゴムシートの物性を表１に示す。比較例として石英粉
を添加しないもので同様のシートを作成し、加熱加硫し
た。物性を表１に示す。The above description is an explanation of one embodiment of the present invention, and the present invention is not limited to the heat fixing roller but can be applied to a roller required to have heat resistance and elasticity. <Examples> Examples will be described below. 1200 g of water was added to 300 g of PTFE resin dispersion having an average particle diameter of 0.3 μm, and quartz powder 3K having an average particle diameter of 4 μm was used.
g and stirred. Then, it dried at 180 degreeC for 1 hour, and baked at 350 degreeC for 10 minutes after that. The obtained quartz powder was added to silicone rubber with a colorant, a vulcanizing agent, and the like, and kneaded with a mixing roll to form a sheet having a thickness of 2 mm. Table 1 shows the physical properties of this rubber sheet. As a comparative example, a similar sheet was prepared without adding quartz powder, and was heated and vulcanized. The physical properties are shown in Table 1.
【００１５】[0015]
【表１】 [Table 1]
【００１６】得られた未加硫のゴムシートを、プライマ
塗布した外径φ５９．５mmのアルミニウム芯金に巻きつ
け、１６０℃で３０分プレス加硫し、その後２００℃で
４時間２次加硫した。表面を研削盤にて研削し、外径φ
６０mmとし、表面をアセトンを含ませた不織布で擦り、
表面の石英粉を取り去り、ローラを得た。このローラを
ＰＴＦＥ樹脂のディスパージョンを含浸方法で塗布し、
５００℃で８分間焼成し、フッ素樹脂層２２μｍの熱定
着ローラを得た。熱定着ローラの特性を表２に示す。The obtained unvulcanized rubber sheet was wrapped around a primer-coated aluminum core having an outer diameter of φ59.5 mm, press-vulcanized at 160 ° C. for 30 minutes, and then secondary vulcanized at 200 ° C. for 4 hours. did. The outside diameter is φ by grinding the surface with a grinder.
60mm, rub the surface with a non-woven fabric containing acetone,
The quartz powder on the surface was removed to obtain a roller. This roller is coated with a dispersion of PTFE resin by an impregnation method,
Firing was performed at 500 ° C. for 8 minutes to obtain a heat fixing roller having a fluororesin layer of 22 μm. Table 2 shows the characteristics of the heat fixing roller.
【００１７】比較例として石英粉無添加で同様の熱定着
ローラを作成した。特性を表２に示す。得られた弾性ロ
ーラ使用してＡ４版用紙を１分間８２枚通紙し、耐久試
験を行った。外側のＰＴＦＥ被膜の浮き、破れを判断基
準として観察した。結果を表２に示す。As a comparative example, a similar heat fixing roller was prepared without adding quartz powder. The characteristics are shown in Table 2. Using the obtained elastic roller, 82 sheets of A4 size paper were passed for 1 minute, and a durability test was conducted. The outer PTFE coating was observed as a criterion for floating and breaking. The results are shown in Table 2.
【００１８】[0018]
【表２】 [Table 2]
【００１９】[0019]
【発明の効果】以上の説明からも明らかなように、本発
明の弾性ローラによれば、ＰＴＦＥ樹脂ディスパージョ
ンに分散された石英粉をＰＴＦＥ樹脂の融点温度以上の
温度で加熱し、ＰＴＦＥ樹脂を石英粉周囲に成膜させた
ものを弾性体に混練し、弾性体層を形成したため、弾性
体層とフッ素樹脂層がより強固に接着され、ローラの耐
久性が著しく向上される。As is apparent from the above description, according to the elastic roller of the present invention, the quartz powder dispersed in the PTFE resin dispersion is heated at a temperature equal to or higher than the melting point temperature of the PTFE resin to form the PTFE resin. Since the elastic body was formed by kneading the film formed around the quartz powder with the elastic body, the elastic body layer and the fluororesin layer were more firmly adhered, and the durability of the roller was remarkably improved.
【図１】本発明の弾性ローラの一実施例の断面図。FIG. 1 is a sectional view of an embodiment of an elastic roller of the present invention.
１・・・・・・熱定着ローラ（弾性ローラ） ２・・・・・・芯金 ３・・・・・・弾性体層 ５・・・・・・フッ素樹脂層 1 --- Heat fixing roller (elastic roller) 2 --- Core metal 3- ・ Elastic body layer 5- ・ Fluorine resin layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 祐司 神奈川県川崎市川崎区小田栄２丁目１番１ 号 昭和電線電纜株式会社内 (72)発明者 安部 隆晴 神奈川県川崎市川崎区小田栄２丁目１番１ 号 昭和電線電纜株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuji Suzuki 2-1-1, Oda Sakae, Kawasaki-ku, Kawasaki-ku, Kanagawa Prefecture Showa Electric Wire & Cable Co., Ltd. (72) Takaharu Abe 2 Sakae Oda, Kawasaki-ku, Kawasaki-shi, Kanagawa No. 1-1 No. 1 Showa Cable Denki Co., Ltd.
Claims (1)
した弾性ローラにおいて、前記弾性体層はポリテトラフ
ロロエチレン樹脂のディスパージョンを焼成されて成る
石英粉を含有することを特徴とする弾性ローラ。1. An elastic roller in which an elastic layer and a fluororesin layer are laminated on a core metal, wherein the elastic layer contains quartz powder obtained by firing a dispersion of polytetrafluoroethylene resin. Elastic roller to do.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8235892A JPH05281869A (en) | 1992-04-03 | 1992-04-03 | Elastic roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8235892A JPH05281869A (en) | 1992-04-03 | 1992-04-03 | Elastic roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05281869A true JPH05281869A (en) | 1993-10-29 |
Family
ID=13772362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8235892A Withdrawn JPH05281869A (en) | 1992-04-03 | 1992-04-03 | Elastic roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05281869A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010224229A (en) * | 2009-03-24 | 2010-10-07 | Fuji Xerox Co Ltd | Tubular body, tubular body supporting device, image fixing device, image forming apparatus, and method for manufacturing the tubular body |
-
1992
- 1992-04-03 JP JP8235892A patent/JPH05281869A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010224229A (en) * | 2009-03-24 | 2010-10-07 | Fuji Xerox Co Ltd | Tubular body, tubular body supporting device, image fixing device, image forming apparatus, and method for manufacturing the tubular body |
| US8422922B2 (en) | 2009-03-24 | 2013-04-16 | Fuji Xerox Co., Ltd. | Tubular body, tubular body supporting apparatus, image fixing apparatus, and image forming apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990608 |