JPH0713452A - Heat roller - Google Patents

Heat roller

Info

Publication number
JPH0713452A
JPH0713452A JP17269093A JP17269093A JPH0713452A JP H0713452 A JPH0713452 A JP H0713452A JP 17269093 A JP17269093 A JP 17269093A JP 17269093 A JP17269093 A JP 17269093A JP H0713452 A JPH0713452 A JP H0713452A
Authority
JP
Japan
Prior art keywords
conductive
pipe
inorganic
film
heat roller
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
Application number
JP17269093A
Other languages
Japanese (ja)
Inventor
Koichi Iwami
公一 石見
Tadaaki Miyazaki
忠昭 宮崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP17269093A priority Critical patent/JPH0713452A/en
Publication of JPH0713452A publication Critical patent/JPH0713452A/en
Pending legal-status Critical Current

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  • Fixing For Electrophotography (AREA)
  • Control Of Resistance Heating (AREA)
  • Resistance Heating (AREA)

Abstract

PURPOSE:To form an exothermic film which has a sufficient exothermic property on the surface of a heat roller, prevents the tight contact of a treating object with roller surface for its excellent release property and is tough, inexpensive and stable by laminating a conductive film obtd. from a silicone varnish liquid mainly dispersed with conductive powder on the surface of a pipe having a nonconductive surface. CONSTITUTION:The heat roller to be used in various kinds of apparatus utilizing electrophotographic processes, such as electrophotographic copying machines, facsimiles and printer, drying devices, laminating devices, warming devices, stretching devices, etc., for food, rubber, plastic, fiber and printing industry, etc., is constituted by forming the conductive film 3 obtd. from the silicone varnish liquid mainly dispersed with the conductive powder on the surface of the pipe 1 having the nonconductive surface. The surface of the pipe 1 is made nonconductive by laminating an insulating film 2 on the pipe surface if the pipe is conductive. Further, a non-adhesive film 4 obtd. from an inorg. coating liquid mainly dispersed with lubricative powder is laminated as the outermost layer at need thereon.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は電子写真複写機、ファク
シミリ、プリンタ−等の電子写真プロセスを利用した各
種機器、食品、ゴム、プラスチック、繊維、印刷工業等
における乾燥装置、ラミネ−ト装置、熱入れ装置、延伸
装置等に用いられるヒ−トロ−ラに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various devices utilizing electrophotographic processes such as electrophotographic copying machines, facsimiles and printers, foods, rubbers, plastics, textiles, dryers and laminators in the printing industry, etc. The present invention relates to a heat roller used for a heating device, a stretching device and the like.

【0002】[0002]

【従来の技術】上記各種工業に用いられるヒ−トロ−ラ
は、ロ−ラ内部に熱源、例えばハロゲンランプ、抵抗フ
ィラメント、熱水管等が設置されるのが一般的である
が、ロ−ラの電熱抵抗に関わる様々な欠点を有する他、
構造が複雑で高価なものとなっている。
2. Description of the Related Art Heat rollers used in the above various industries generally have a heat source such as a halogen lamp, a resistance filament, and a hot water pipe installed inside the roller. In addition to having various drawbacks related to the electric resistance of
The structure is complicated and expensive.

【0003】このため、ヒ−トロ−ラ表面に直接発熱膜
を設けるための提案が数多くなされている。例えば、特
開平1−177577号では、無電解メッキ法による方
法が提案されているが、製造工程が複雑である上にメッ
キの廃液処理が新たな問題となる。又、この方法による
発熱膜は比較的高温酸化に弱い欠点がある。又、特開平
1−116584号では、溶射法による方法が提案され
ているが、高価な設備を必要とし、又、原料粉体も高価
である。更に、特開平1−104672号では、導電性
粉体を有機硅素樹脂溶液中に分散させた液をロ−ラ表面
に塗布する方法が提案されているが、焼付けに高温を必
要とし、又、高価であるという問題点を有している。
Therefore, many proposals have been made for directly providing a heat generating film on the surface of the heater. For example, Japanese Patent Application Laid-Open No. 1-177577 proposes a method by electroless plating, but the manufacturing process is complicated and the waste liquid treatment of plating becomes a new problem. Further, the heat-generating film produced by this method has a drawback that it is vulnerable to relatively high temperature oxidation. Further, in JP-A-1-116584, a method by a thermal spraying method is proposed, but it requires expensive equipment and the raw material powder is also expensive. Further, JP-A-1-104672 proposes a method of coating a roller surface with a liquid in which a conductive powder is dispersed in an organic silicon resin solution, but requires high temperature for baking, and It has the problem of being expensive.

【0004】[0004]

【発明が解決しようとする課題】本発明は、以上のよう
な従来の技術の欠点を改良するために開発されたもので
あって、ヒ−トロ−ラの表面へ、充分な発熱性を有し、
離型性が優れる故に処理物がロ−ラ表面に密着すること
が無く、しかも強靭かつコストも安い安定な発熱膜を形
成することを目的とする。
The present invention was developed in order to improve the above-mentioned drawbacks of the prior art, and has sufficient heat-generating property on the surface of the heater. Then
It is an object of the present invention to form a stable heat-generating film in which the treated product does not adhere to the roller surface due to its excellent releasability and is tough and inexpensive.

【0005】[0005]

【課題を解決する為の手段】即ち、本発明の要旨は、表
面が非導電性のパイプの当該表面に、主に導電性粉体を
分散させたシリコンワニス液より得た導電性膜を積層す
ることを特徴とするヒ−トロ−ラにかかるものである。
尚、ここで用いられるシリコンワニスは、通常は2官能
性シロキサンモノマ−と3官能性シロキサンモノマ−の
共重合体であり、ポリマ−中には加水分解可能な基を3
〜30個有するものが用いられる。
That is, the gist of the present invention is to laminate a conductive film obtained from a silicon varnish liquid, in which conductive powder is mainly dispersed, on the surface of a non-conductive pipe. The present invention relates to a heat roller which is characterized in that
The silicon varnish used here is usually a copolymer of a bifunctional siloxane monomer and a trifunctional siloxane monomer, and the polymer contains a hydrolyzable group of 3 groups.
Those having up to 30 are used.

【0006】そして、パイプが導電性の場合には、パイ
プ表面に主に非導電性粉体を分散させた無機系コ−テイ
ング液より得た絶縁性膜を積層して表面を非導電性パイ
プとするのがよい。
When the pipe is electrically conductive, an insulating film obtained from an inorganic coating liquid in which a non-conductive powder is mainly dispersed is laminated on the surface of the pipe to form a non-conductive pipe on the surface. It is good to say

【0007】ヒ−トロ−ラに充分な離型性が要求される
場合は、最外層として主に潤滑性粉体を分散させた無機
系コ−テイング液より得た非密着性膜を設けるか、或い
は導電性膜上に無機系コ−テイング液より得たプレコ−
ト層を介して弗素樹脂コ−テイングする事により非密着
性膜を設けるのが好ましい。
When a sufficient release property is required for the heater, is a non-adhesive film obtained mainly from an inorganic coating liquid in which lubricating powder is dispersed as an outermost layer? Alternatively, a precoat obtained from an inorganic coating liquid on the conductive film
It is preferable to provide a non-adhesive film by coating a fluororesin through the coating layer.

【0008】ここで用いられる無機系コ−テイング液
は、好ましくは、主にシリカ、アルミナ、チタニア、酸
化アンチモン、酸化鉄、ジルコニア、イットリア等の粒
子性無機系ゾル液、表面変性粒子性無機系ゾル液、曳糸
性又は粘性無機系溶液或いはゾル液、ポリボロシロキサ
ン樹脂、ポリカルボシラン樹脂、ポリシラスチレン樹
脂、ポリシラザン樹脂、ポリチタノカルボシラン樹脂等
の含硅素無機高分子化合物、又はこれらの混合物から選
ばれるのがよい。
The inorganic coating liquid used here is preferably a particulate inorganic sol liquid mainly composed of silica, alumina, titania, antimony oxide, iron oxide, zirconia, yttria or the like, surface-modified particulate inorganic liquid. Sol-containing, spinnable or viscous inorganic solution or sol, silicon-containing inorganic polymer compounds such as polyborosiloxane resin, polycarbosilane resin, polysilastyrene resin, polysilazane resin, polytitanocarbosilane resin, or these Is preferably selected from a mixture of

【0009】[0009]

【作用】本発明は、以上のように非導電性の表面を持つ
パイプの当該表面に、主に導電性粉体を分散させたシリ
コンワニス液より得た導電性膜と、更に必要に応じて最
外層として主に潤滑性粉体を分散させた無機系コ−テイ
ング液より得た非密着性膜、或いは導電性膜上に無機系
コ−テイング液より得たプレコ−ト層を介して弗素樹脂
コ−テイングすることにより得た非密着性膜を積層した
ロ−ラであって、シャ−プな温度制御性、充分な発熱
性、優れた離型性、耐久性を実現したヒ−トロ−ラとな
ったものである。
The present invention provides a conductive film obtained from a silicon varnish liquid in which conductive powder is mainly dispersed on the surface of a pipe having a non-conductive surface as described above, and further, if necessary. As the outermost layer, fluorine is mainly provided as a non-adhesive film obtained from an inorganic coating liquid in which a lubricating powder is dispersed, or a precoat layer obtained from an inorganic coating liquid on a conductive film. A roller in which a non-adhesive film obtained by resin coating is laminated, and which realizes sharp temperature controllability, sufficient heat generation, excellent releasability, and durability. -It became a la.

【0010】以下、図面を用いて詳細に説明する。図1
において、1はパイプであり、好ましくは、アルミ、
鉄、銅、黄銅、青銅、SUS、亜鉛等の金属性材質、或
いはセラミック等の無機材料が利用できる。符号2は絶
縁性膜、3は導電性膜、4は非密着性膜であり、パイプ
1の両端に、導電性固着物5により電極6が固定されて
いる。さて、絶縁性膜2は、非導電性粉体を分散させた
無機系コ−テイング液を、基体に塗布した後、乾燥、焼
付けることにより得られる。かかる粉体の配合量は、固
形分としては20〜80体積%が望ましく、20体積%
以下では所要膜厚でクラックが発生し易いという欠点が
ある。又、これが80体積%以上では密着性が低下する
という問題が生ずる。尚、絶縁性膜2の膜厚は30〜1
50μmが一応の目安である。
A detailed description will be given below with reference to the drawings. Figure 1
In, 1 is a pipe, preferably aluminum,
Metallic materials such as iron, copper, brass, bronze, SUS and zinc, or inorganic materials such as ceramics can be used. Reference numeral 2 is an insulating film, 3 is a conductive film, and 4 is a non-adhesive film, and electrodes 6 are fixed to the both ends of the pipe 1 by a conductive fixing material 5. By the way, the insulating film 2 is obtained by applying an inorganic coating liquid in which a non-conductive powder is dispersed onto a substrate, followed by drying and baking. The compounding amount of the powder is preferably 20 to 80% by volume as solid content, and 20% by volume.
Below, there is a drawback that cracks easily occur at the required film thickness. Further, if this content is 80% by volume or more, there arises a problem that the adhesion is lowered. The insulating film 2 has a thickness of 30 to 1
50 μm is a rough standard.

【0011】この絶縁性膜2を構成する粉体としては、
例えば、アルミナ、シリカ、マイカ、水酸化マグネシウ
ム、タルク、イライト、炭酸カルシウム、炭酸バリウ
ム、クレ−、珪藻土、ベントナイト、ムライト、h−B
N、炭化硼素、亜鉛華、チタン酸バリウム、酸化鉄、酸
化亜鉛、酸化マグネシウム、酸化硼素、酸化コバルト、
ゼオライト、各種ガラス粉末、粘土鉱物等が挙げられ
る。
As the powder forming the insulating film 2,
For example, alumina, silica, mica, magnesium hydroxide, talc, illite, calcium carbonate, barium carbonate, clay, diatomaceous earth, bentonite, mullite, hB
N, boron carbide, zinc white, barium titanate, iron oxide, zinc oxide, magnesium oxide, boron oxide, cobalt oxide,
Zeolite, various glass powders, clay minerals and the like can be mentioned.

【0012】そして、無機系コ−ティング液の例は前記
した通りであるが、この内シリカ系を例に更に説明する
ならば、粒子性無機系ゾル液とは、主にオルソ硅酸、ポ
リ硅酸、オルソ硅酸エステル、ポリ硅酸エステル等の加
水分解や縮合反応により得られる粒子径10mμ〜50
0mμの分散液であり、これらにはシロキサン結合の一
部を水素、アルキル基、アリ−ル基で置換した原料素材
を一成分として用いる場合を含むものである。
The examples of the inorganic coating liquid are as described above. If the silica type liquid is further explained as an example, the particulate inorganic sol liquid is mainly orthosilicic acid or poly Particle size of 10 mμ to 50 obtained by hydrolysis or condensation reaction of silicic acid, orthosilicate ester, polysilicate ester, etc.
It is a dispersion of 0 mμ and includes the case where a raw material in which a part of the siloxane bond is substituted with hydrogen, an alkyl group or an aryl group is used as one component.

【0013】又、表面変性無機系ゾル液とは、上記粒子
表面に存在する硅酸結合や硅酸エステルの活性基を利用
した反応により表面を変性することであり、中和反応、
エステル化反応、縮合反応が利用される。
Further, the surface-modified inorganic sol liquid is to modify the surface by a reaction utilizing the silicic acid bond or the active group of the silicate ester existing on the surface of the particles, and the neutralization reaction,
Esterification reaction and condensation reaction are used.

【0014】縮合反応は、粒子性無機系ゾル液の存在下
に行う主にオルソ硅酸、ポリ硅酸、オルソ硅酸エステ
ル、ポリ硅酸エステル等の加水分解や縮合反応を指し、
前記と同様に、シロキサン結合の一部を水素、アルキル
基、アリ−ル基、で置換した原料素材を一成分として用
いる場合を含むものである。
The condensation reaction is mainly a hydrolysis or condensation reaction of orthosilicic acid, polysilicic acid, orthosilicic acid ester, polysilicic acid ester or the like carried out in the presence of a particulate inorganic sol liquid.
Similar to the above, it includes the case where a raw material in which a part of the siloxane bond is replaced with hydrogen, an alkyl group or an aryl group is used as one component.

【0015】そして、曳糸性又は粘性無機系溶液或いは
ゾル液とは、主にオルソ硅酸エステルやポリ硅酸エステ
ルの加水分解や縮合反応を、一般には、酸触媒下でかつ
限定された水分の下に実施することにより得られる、比
較的リニア性の高い縮合反応生成物を指し、シロキサン
結合の一部を水素、アルキル基、アリ−ル基で置換した
原料素材を一成分として用いる場合を含み、いわゆるラ
ダ−ポリマ−もこの分類に属する。
The spinnable or viscous inorganic solution or sol solution is mainly used for the hydrolysis or condensation reaction of ortho silicate ester or poly silicate ester, generally under acid catalyst and limited water content. In the case where a raw material obtained by substituting a part of the siloxane bond with hydrogen, an alkyl group or an aryl group is used as one component, it means a condensation reaction product having a relatively high linearity obtained by Including, so-called ladder polymers also belong to this class.

【0016】一方、導電性膜3は、導電性粉体を分散さ
せたシリコンワニス液を、基材上に塗布した後、乾燥、
焼け付けすることにより得られる。かかる粉体配合量
は、固形分として20〜80体積%が望ましく、20体
積%以下では所要の抵抗値が得られず、又、80体積%
以上では表面状態が粗くなり脆い膜となるので特殊な目
的以外には向かない。この導電性膜3の膜厚は、主に必
要とする抵抗値により決まるが100〜1000μmが
一応の目安である。
On the other hand, the conductive film 3 is formed by applying a silicon varnish liquid in which conductive powder is dispersed onto a substrate and then drying it.
It is obtained by baking. The powder blending amount is preferably 20 to 80% by volume as a solid content, and a required resistance value cannot be obtained at 20% by volume or less, and 80% by volume.
In the above case, the surface condition becomes rough and the film becomes brittle, so that it is not suitable for any other purpose. The thickness of the conductive film 3 is determined mainly by the required resistance value, but 100 to 1000 μm is a rough standard.

【0017】導電性膜3を形成する導電性粉体として
は、例えば、黒鉛、球晶黒鉛、黒鉛ウイスカ−、カ−ボ
ンブラック、炭素短繊維、銀、銅、ニッケル、ステンレ
ス、鉄、錫、鉛、アルミ、亜鉛、青銅、黄銅、炭化ニオ
ブ、炭化ジルコニウム、炭化チタン、炭化タングステ
ン、炭化硅素、硼化ジルコニウム、硼化チタン、窒化チ
タン、窒化ニオブ等が挙げられる。
As the conductive powder forming the conductive film 3, for example, graphite, spherulite graphite, graphite whiskers, carbon black, short carbon fibers, silver, copper, nickel, stainless steel, iron, tin, Examples thereof include lead, aluminum, zinc, bronze, brass, niobium carbide, zirconium carbide, titanium carbide, tungsten carbide, silicon carbide, zirconium boride, titanium boride, titanium nitride and niobium nitride.

【0018】そして、上記の導電性粉体を分散させるシ
リコンワニス液は、2官能性シロキサンモノマ−と3官
能性シロキサンモノマ−の共重合体であり、ポリマ−中
には加水分解可能な基を3〜30個有する。これらは市
販品として提供されており、例えば、東芝シリコン
(株)の品番TSR160、TSR145、TSR12
7B、TSR165、YR3187、YR3168等が
これに相当する。
The silicon varnish liquid in which the above-mentioned conductive powder is dispersed is a copolymer of a bifunctional siloxane monomer and a trifunctional siloxane monomer, and a hydrolyzable group is contained in the polymer. It has 3 to 30 pieces. These are provided as commercial products, for example, product numbers TSR160, TSR145, TSR12 of Toshiba Silicon Co., Ltd.
7B, TSR165, YR3187, YR3168 and the like correspond to this.

【0019】上記した無機系コ−テイング液及びシリコ
ンワニス液の塗布方法は、特に限定されることはなく、
スプレ−塗布、スクリ−ン印刷、デイップ処理、各種コ
−タ−法の他、予めロ−ル配合等によりシ−ト状に成膜
したものをパイプ表面に巻きつけることによっても得ら
れる。
The method of applying the above-mentioned inorganic coating liquid and silicon varnish liquid is not particularly limited,
In addition to spray coating, screen printing, dipping, various coat methods, it can also be obtained by winding a sheet-shaped film previously prepared by mixing a roll or the like on the pipe surface.

【0020】導電性固着剤5は、導電性粉体を分散させ
た無機系コ−テイング液を図示した位置に塗布後乾燥、
焼き付けることで得られる。
The conductive adhesive 5 is formed by applying an inorganic coating liquid in which conductive powder is dispersed to the position shown in the drawing and then drying it.
Obtained by baking.

【0021】電極6は銀、銅、ニッケル、タングステ
ン、ステンレス、鉄、銅、鉛、アルミ、亜鉛、青銅、黄
銅等の箔状リボン又は網状リボンである。
The electrode 6 is a foil ribbon or mesh ribbon made of silver, copper, nickel, tungsten, stainless steel, iron, copper, lead, aluminum, zinc, bronze, brass or the like.

【0022】ヒ−トロ−ラの発熱部への電圧印加は直接
電極に加えてもよいが、場合により図2に示すスリップ
リングを介して印加することもできる。
The voltage may be applied directly to the heat generating portion of the heater, but may be applied via the slip ring shown in FIG. 2 in some cases.

【0023】即ち、図2は電圧印加部の拡大図であり、
Aはヒ−トロ−ラ本体、7は当て金、8はスプリング、
9は止めネジである。そして、止めネジ9をねじ込むこ
とによりスプリング8は圧縮し、当て金7を押すことと
なり、この当て金7は図1の電極6に接して配置されて
いるので、この作用により両者は密接し電圧の印加が可
能となるのである。
That is, FIG. 2 is an enlarged view of the voltage applying section,
A is the heat roller body, 7 is a pad, 8 is a spring,
9 is a set screw. When the set screw 9 is screwed in, the spring 8 is compressed and the pad 7 is pushed, and since the pad 7 is arranged in contact with the electrode 6 in FIG. Can be applied.

【0024】尚、電子写真プロセスにおけるトナ−の熱
定着のような特殊な用途には、非密着性膜4は不可欠で
あり、これを欠くとオフセット現象が発生する。
Note that the non-adhesive film 4 is indispensable for special applications such as heat fixing of toner in the electrophotographic process, and if it is omitted, an offset phenomenon occurs.

【0025】かかる非密着性膜4には、特に言えば次の
2つの種類がある。即ち、第1の非密着性膜は、潤滑性
粉体を分散させた無機系コ−テイング液を導電性膜上に
塗布した後、乾燥、焼き付けることにより得られる。こ
こで、潤滑性粉体としては弗素樹脂、二硫化モリブデ
ン、h−BN等の固体潤滑剤が挙げられる。そしてこの
粉体配合量は、固形分として20〜80体積%が望まし
く、20体積%以下では非密着性が不十分となり、又、
80体積%以上では表面平滑性の低下や、耐外傷性の低
下等の問題がある。
The non-adhesive film 4 is classified into the following two types. That is, the first non-adhesive film is obtained by applying an inorganic coating liquid in which a lubricating powder is dispersed onto the conductive film, followed by drying and baking. Here, examples of the lubricating powder include solid lubricants such as fluorine resin, molybdenum disulfide, and h-BN. The powder content is preferably 20 to 80% by volume as the solid content, and if it is 20% by volume or less, the non-adhesiveness becomes insufficient, and
When it is 80% by volume or more, there are problems such as deterioration of surface smoothness and deterioration of external damage resistance.

【0026】一方、第2の非密着性膜は、市販の弗素樹
脂塗料であり、商品名で示すならば、ダイキン工業
(株)のワンコ−トエナメル、ポリフロンタフコ−トエ
ナメル、旭ガラス(株)のス−パ−コ−ト、デュポン・
ジャパン(株)のテフロンエナメル、テフロンS、保土
ケ谷化学(株)のサスティ−ル、住友化学(株)のエコ
ノ−ル等である。
On the other hand, the second non-adhesive film is a commercially available fluororesin paint, and if it is indicated by the trade name, Onekin Enamel, Polyflon Tough Coat Enamel manufactured by Daikin Industries, Ltd., and Asahi Glass Co., Ltd. -Parcoat, DuPont
Examples include Teflon Enamel and Teflon S from Japan Co., Ltd., Sustain from Hodogaya Chemical Co., Ltd., and Econole from Sumitomo Chemical Co., Ltd.

【0027】この第2の非密着性膜においては、予め導
電性膜上に無機系コ−ティング液より得たプレコ−ト層
を設けるのがよく、ディップ処理、流しかけ、スプレ−
塗装の方法で、導電性膜を処理した後、乾燥、焼き付け
ることにより得られる。
In this second non-adhesive film, a precoat layer obtained from an inorganic coating liquid is preferably provided on the conductive film in advance, and dipping, pouring, spraying is performed.
It is obtained by treating the conductive film by a coating method, then drying and baking.

【0028】上記の各手順では、説明の都合上成膜後の
乾燥・焼付け工程をその都度実施したが、これは必ずし
も必要ではない。但し、市販の弗素樹脂塗料の前段階に
おける乾燥・焼付けは不可欠で、これを省略すると十分
な非密着性が得難い。
In each of the above procedures, the drying / baking process after film formation is carried out each time for convenience of explanation, but this is not always necessary. However, it is indispensable to dry and bake commercially available fluororesin paints in the previous stage, and if this is omitted, it is difficult to obtain sufficient non-adhesion.

【0029】[0029]

【実施例】以下実施例により更に詳細に説明する。 (実施例1)外径32φ(t=3)、長さ380mmの
アルミパイプ1の表面を脱脂、研磨した。タルク(日本
タルク社製:タルク3S)をセラミックコ−ティング液
(大八化学工業所製:TS101)に分散し、固形分で
50体積%としたものをスプレ−塗装した後、室温で1
時間乾燥して膜厚50μmの絶縁性膜2を得た。
Embodiments will be described in more detail with reference to embodiments. (Example 1) The surface of an aluminum pipe 1 having an outer diameter of 32φ (t = 3) and a length of 380 mm was degreased and polished. Talc (manufactured by Nippon Talc Co., Ltd .: talc 3S) was dispersed in a ceramic coating liquid (TS101, manufactured by Daihachi Chemical Industry Co., Ltd.), and the solid content was 50% by volume.
After drying for an hour, an insulating film 2 having a film thickness of 50 μm was obtained.

【0030】次に黒鉛(ロンザ社製:KS25)をシリ
コンワニス液(東レシリコン社製:SH804)に分散
し、固形分で50体積%としたものをスプレ−塗装した
後、200℃で30分硬化して膜厚400μmの導電性
膜3を得た。これをセラミックコ−ティング液(同上)
に浸漬した後、300℃で10分硬化させた。
Next, graphite (KS25 manufactured by Lonza Co., Ltd.) was dispersed in a silicon varnish solution (SH804 manufactured by Toray Silicon Co., Ltd.), and the solid content of 50% by volume was spray-painted, followed by 30 minutes at 200 ° C. By curing, a conductive film 3 having a film thickness of 400 μm was obtained. This is a ceramic coating liquid (same as above)
Then, it was cured at 300 ° C. for 10 minutes.

【0031】更に、弗素塗料(デュポンジャパン社製:
テフロンS)をこの表面にスプレ−塗装した後、210
℃で10分、そして、320℃で15分、焼き付けるこ
とにより非密着性膜4を得た。
Further, fluorine coating (manufactured by DuPont Japan:
After Teflon S) is spray-coated on this surface, 210
The non-adhesive film 4 was obtained by baking at 10 ° C. for 10 minutes and at 320 ° C. for 15 minutes.

【0032】得られたヒ−トロ−ラにあって、電極間距
離300mmとした時の電極間抵抗は18Ωであった。
In the obtained heater, the interelectrode resistance was 18Ω when the interelectrode distance was 300 mm.

【0033】このヒ−トロ−ラに関して下記の評価を実
施した。 (a) 塗膜の密着性:碁盤目テスト (b) 昇温性:100V商用電源を電極間に印加した時の
昇温速度。温度測定はThermo Vision(日
本アビオニクス社製)により行った。 (c) 印字特定:複写機用定着ロ−ラとして使用した時
の、ロ−ラ表面へのトナ−の付着有無を評価した。
The following evaluations were carried out on this heat roller. (a) Adhesion of coating film: cross-cut test (b) Temperature rising property: Temperature rising rate when a 100 V commercial power source is applied between electrodes. The temperature was measured by Thermo Vision (manufactured by Nippon Avionics Co., Ltd.). (c) Specific printing: When the toner was used as a fixing roller for a copying machine, the presence or absence of toner adhered to the roller surface was evaluated.

【0034】上記の項目による評価の結果、塗膜の密着
性は極めて優れたものであり、全ブロックにおいて剥離
の発生は見られなかった。又、ヒ−トロ−ラとしての昇
温性は良好で、1分以内で表面温度は180℃に達し
た。更に、印字性能にあっては、ロ−ラ表面へのトナ−
の付着は全く見られなかった。
As a result of the evaluation based on the above items, the adhesion of the coating film was extremely excellent, and peeling was not observed in all blocks. Further, the temperature rising property as a heater was good, and the surface temperature reached 180 ° C. within 1 minute. Furthermore, in terms of printing performance, toner on the roller surface
Was not observed at all.

【0035】(実施例2)実施例1と同様にして同形の
アルミパイプ1上に絶縁性膜2を形成した。そして、黒
鉛(ロンザ社製:KS25)をシリコンワニス液(東レ
シリコン社製:SH804)に分散し、固形分で50体
積%としたものをスプレ−塗装後、200℃で30分硬
化して膜厚400μmの導電性膜3を得た。更に、弗素
樹脂粉末(ダイキン工業社製:レブロンL−2)をセラ
ミックコ−ティング液(同上)に浸漬した後、固形分で
60体積%としたものをスプレ−塗装し、その後350
℃で30分焼付けることにより膜厚10μmの非密着性
膜4を得た。
(Example 2) An insulating film 2 was formed on an aluminum pipe 1 having the same shape as in Example 1. Then, graphite (KS25 manufactured by Lonza Co., Ltd.) was dispersed in a silicon varnish solution (SH804 manufactured by Toray Silicon Co., Ltd.), and the solid content of 50% by volume was spray-coated and then cured at 200 ° C. for 30 minutes to form a film. A conductive film 3 having a thickness of 400 μm was obtained. Further, a fluororesin powder (manufactured by Daikin Industries, Ltd .: Revlon L-2) was dipped in a ceramic coating liquid (same as above), and then the solid content of 60% by volume was spray-coated and then 350
By baking at 30 ° C. for 30 minutes, a non-adhesive film 4 having a film thickness of 10 μm was obtained.

【0036】得られたヒ−トロ−ラは、電極間距離30
0mmとした時の電極間抵抗は18Ωであった。又、こ
のヒ−トロ−ラにつき実施例1と同様の評価を実施した
が、同等の良好な結果を得た。
The heat roller thus obtained had a distance between electrodes of 30.
The inter-electrode resistance was 18Ω when the distance was 0 mm. The same evaluation as in Example 1 was performed on this heater, but the same good results were obtained.

【0037】(実施例3)実施例2と同様にして同形の
アルミパイプ1上に絶縁性膜2及び導電性膜3を形成し
た。そして、これをセラミックコ−ティング液(東燃社
製:東燃ポリシラサンPHPS−2)に浸漬処理した
後、300℃で10分硬化させた。更に、弗素塗料(デ
ユポン・ジャパン社製:テフロンS)をスプレ−塗装し
た後、210℃で10分、そして320℃で15分焼き
付けることにより非密着性膜4を得た。
(Example 3) In the same manner as in Example 2, an insulating film 2 and a conductive film 3 were formed on an aluminum pipe 1 having the same shape. Then, this was dipped in a ceramic coating liquid (Tonen Polysilazan PHPS-2 manufactured by Tonensha Co., Ltd.) and then cured at 300 ° C. for 10 minutes. Furthermore, a non-adhesive film 4 was obtained by spray-coating with a fluorine coating (Teflon S manufactured by Dyupon Japan Co., Ltd.) and baking at 210 ° C. for 10 minutes and 320 ° C. for 15 minutes.

【0038】得られたヒ−トロ−ラは、電極間距離30
0mmとした時の電極間抵抗は18Ωであった。又、こ
のヒ−トロ−ラにつき実施例1と同様の評価を実施した
が、同等の良好な結果を得た。
The heat roller thus obtained had a distance between electrodes of 30.
The inter-electrode resistance was 18Ω when the distance was 0 mm. The same evaluation as in Example 1 was performed on this heater, but the same good results were obtained.

【0039】(比較例1)実施例1と同様にして同形の
アルミパイプ上に絶縁性膜2を形成した。そして、黒鉛
(ロンザ社製:KS25)をシリコンワニス液(東レシ
リコン社製:SH804)に分散し、固形分で50体積
%としたものをスプレ−塗装後、200℃で30分,更
に300℃で15分硬化して膜厚400μmの導電性膜
3を得た。
Comparative Example 1 An insulating film 2 was formed on an aluminum pipe of the same shape as in Example 1. Then, graphite (Lonza Co., Ltd .: KS25) was dispersed in a silicon varnish liquid (Toray Silicon Co., Ltd .: SH804), and a solid content of 50% by volume was spray-coated, followed by 200 ° C. for 30 minutes, and further 300 ° C. And cured for 15 minutes to obtain a conductive film 3 having a thickness of 400 μm.

【0040】ここで弗素塗料(デュポンジャパン社製:
テフロンS)をスプレ−塗装した後、210℃で10
分、そして、320℃で15分、焼き付けることにより
非密着性膜4を得た。この例では、非密着性膜4を形成
するに際して、導電性膜3上に無機系コ−ティング液よ
り得たプレコ−ト層が設けられていない例である。
Fluorine paint (manufactured by DuPont Japan:
After spray-coating Teflon S) at 210 ° C for 10
And then baked at 320 ° C. for 15 minutes to obtain a non-adhesive film 4. In this example, when the non-adhesive film 4 is formed, the precoat layer obtained from the inorganic coating liquid is not provided on the conductive film 3.

【0041】得られたヒ−トロ−ラは、電極間距離30
0mmとした時の電極間抵抗は18Ωであったが、実施
例1と同様の評価を実施したところ、テフロン塗膜の密
着性が悪く、全ブロック剥離した。
The heat roller thus obtained had an interelectrode distance of 30.
The resistance between the electrodes when it was 0 mm was 18 Ω, but when the same evaluation as in Example 1 was carried out, the adhesion of the Teflon coating film was poor and all blocks were peeled off.

【0042】(比較例2)実施例1と同様にして同形の
アルミパイプ1上に絶縁性膜2を形成した。そして、黒
鉛(ロンザ社製:KS25)をシリコンワニス液(同
上)に分散し、固形分で50体積%としたものをスプレ
−塗装した後、200℃で30分,更に300℃で10
分硬化して膜厚400μmの導電性膜3を得た。この時
点で実施例1で実施したのと同様、塗膜の密着性を評価
したところ、絶縁性膜2とアルミ基材(パイプ)1との
密着性が悪く、全ブロック剥離した。
(Comparative Example 2) An insulating film 2 was formed on an aluminum pipe 1 having the same shape as in Example 1. Then, graphite (KS25 manufactured by Lonza Co., Ltd.) was dispersed in a silicon varnish solution (same as above), and a solid content of 50% by volume was spray-coated, followed by 30 minutes at 200 ° C. and further 10 minutes at 300 ° C.
By minute curing, a conductive film 3 having a film thickness of 400 μm was obtained. At this point, when the adhesion of the coating film was evaluated in the same manner as in Example 1, the adhesion between the insulating film 2 and the aluminum base material (pipe) 1 was poor, and all blocks were peeled off.

【0043】[0043]

【発明の効果】以上記載したように、本発明によって得
られたヒ−トロ−ラは、塗膜の密着性が極めて優れたも
のであり、又、ヒ−トロ−ラとしての昇温性も良好であ
り、印字性能にも優れたものであって、かつ安価なヒ−
トロ−ラを提供することができたものである。
As described above, the heat roller obtained by the present invention has extremely excellent adhesion of the coating film, and also has a temperature rising property as a heat roller. A good heat printer that is good and has excellent printing performance.
It was possible to provide a trolley.

【図面の簡単な説明】[Brief description of drawings]

【図1】図1は本発明のヒ−トロ−ラの部分断面図であ
る。
FIG. 1 is a partial sectional view of a heater according to the present invention.

【図2】図2はヒ−トロ−ラの電圧印加部の拡大断面図
である。
FIG. 2 is an enlarged cross-sectional view of a voltage applying section of a heater.

【符号の説明】[Explanation of symbols]

A‥‥ヒ−トロ−ラ本体、 1‥‥パイプ、 2‥‥非導電性膜、 3‥‥導電性膜、 4‥‥非密着性膜、 5‥‥導電性固着剤、 6‥‥電極、 7‥‥当て金、 8‥‥スプリング、 9‥‥止めネジ。 A ... Heat roller body, 1 ... Pipe, 2 ... Non-conductive film, 3 ... Conductive film, 4 ... Non-adhesive film, 5 ... Conductive adhesive, 6 ... Electrode , 7 ・ ・ ・ Folder, 8 ・ ・ ・ Spring, 9 ・ ・ ・ Set screw.

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 表面が非導電性のパイプの当該表面に、
主に導電性粉体を分散させたシリコンワニス液より得た
導電性膜を積層することを特徴とするヒ−トロ−ラ。
1. A surface of a pipe having a non-conductive surface,
A heat roller characterized by laminating a conductive film obtained mainly from a silicon varnish liquid in which conductive powder is dispersed.
【請求項2】 パイプの表面に、非導電性粉体を分散さ
せた無機系コ−テイング液より得た絶縁性膜を積層し
て、当該表面を非導電性とした請求項第1項記載のヒ−
トロ−ラ。
2. The pipe according to claim 1, wherein an insulating film obtained from an inorganic coating liquid in which a non-conductive powder is dispersed is laminated on the surface of the pipe to make the surface non-conductive. Hee
Troller.
【請求項3】 主に潤滑性粉体を分散させた無機系コ−
テイング液より得た非密着性膜を、最外層として導電性
膜上に積層した請求項第1項乃至第2項記載のヒ−トロ
−ラ。
3. An inorganic copolymer mainly containing a lubricating powder dispersed therein.
3. The heat roller according to claim 1, wherein a non-adhesive film obtained from the coating solution is laminated on the conductive film as the outermost layer.
【請求項4】 無機系コ−テイング液より得たプレコ−
ト層を介して、弗素樹脂塗料をコ−トすることにより得
た非密着性膜を、最外層として導電性膜上に積層した請
求項第1項乃至第2項記載のヒ−トロ−ラ。
4. A precoat obtained from an inorganic coating liquid.
3. The heat roller according to claim 1 or 2, wherein a non-adhesive film obtained by coating a fluororesin coating material through the coating layer is laminated on the conductive film as the outermost layer. .
【請求項5】 無機系コ−テイング液が、主にシリカ、
アルミナ、チタニア、酸化アンチモン、酸化鉄、ジルコ
ニア、イットリア等の粒子性無機系ゾル液、表面変性粒
子性無機系ゾル液、曳糸性又は粘性無機系溶液或いはゾ
ル液、ポリボロシロキサン樹脂、ポリカルボシラン樹
脂、ポリシラスチレン樹脂、ポリシラザン樹脂、ポリチ
タノカルボシラン樹脂等の含硅素無機高分子化合物、又
はこれらの混合物から選ばれた請求項第2項乃至第4項
記載のヒ−トロ−ラ。
5. The inorganic coating liquid is mainly silica,
Particulate inorganic sol liquid such as alumina, titania, antimony oxide, iron oxide, zirconia, yttria, surface-modified particulate inorganic sol liquid, spinnable or viscous inorganic solution or sol liquid, polyborosiloxane resin, polycarbocarbon The heat roller according to any one of claims 2 to 4, which is selected from a silicon-containing inorganic polymer compound such as a silane resin, a polysilastyrene resin, a polysilazane resin, and a polytitanocarbosilane resin, or a mixture thereof. .
JP17269093A 1993-06-19 1993-06-19 Heat roller Pending JPH0713452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17269093A JPH0713452A (en) 1993-06-19 1993-06-19 Heat roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17269093A JPH0713452A (en) 1993-06-19 1993-06-19 Heat roller

Publications (1)

Publication Number Publication Date
JPH0713452A true JPH0713452A (en) 1995-01-17

Family

ID=15946555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17269093A Pending JPH0713452A (en) 1993-06-19 1993-06-19 Heat roller

Country Status (1)

Country Link
JP (1) JPH0713452A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011095753A (en) * 2009-11-02 2011-05-12 Xerox Corp Hyper nanocomposite (hnc) for fuser material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011095753A (en) * 2009-11-02 2011-05-12 Xerox Corp Hyper nanocomposite (hnc) for fuser material

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