JPH11282305A - Oil application roller - Google Patents
Oil application rollerInfo
- Publication number
- JPH11282305A JPH11282305A JP9816998A JP9816998A JPH11282305A JP H11282305 A JPH11282305 A JP H11282305A JP 9816998 A JP9816998 A JP 9816998A JP 9816998 A JP9816998 A JP 9816998A JP H11282305 A JPH11282305 A JP H11282305A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- felt
- application roller
- fiber
- oil application
- 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
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 239000011148 porous material Substances 0.000 claims abstract description 27
- 229910000323 aluminium silicate Inorganic materials 0.000 claims abstract description 11
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004760 aramid Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 229920002545 silicone oil Polymers 0.000 description 8
- 230000000717 retained effect Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012210 heat-resistant fiber Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Coating Apparatus (AREA)
Abstract
(57)【要約】
【課題】 フェルト被覆多孔質芯軸形式のオイル塗布ロ
ーラを改良し、従来品よりも多量のオイル塗布が可能な
ものとする。
【解決手段】 オイルを含浸させた多孔質成形体からな
る芯軸の表面を耐熱性フェルトで被覆する。フェルトと
しては、アルミノシリケート質繊維を主材とし平均気孔
径５０μm以下のものを用いる。５０重量％未満のアラ
ミド繊維を含有するものが柔軟性に富み好ましい。(57) [Problem] To improve a felt-coated porous core shaft type oil application roller so that a larger amount of oil can be applied than conventional products. SOLUTION: The surface of a core shaft made of a porous molded body impregnated with oil is covered with a heat-resistant felt. As the felt, one having an aluminosilicate fiber as a main material and an average pore diameter of 50 μm or less is used. Those containing less than 50% by weight of aramid fibers are preferred because of their high flexibility.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、静電複写機、電子
写真式プリンタ等における定着装置のオイル塗布ローラ
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil applying roller of a fixing device in an electrostatic copying machine, an electrophotographic printer or the like.
【０００２】[0002]
【従来の技術】静電複写機や電子写真式プリンタの定着
装置の多くはオイル塗布ローラと呼ばれる部品を備えて
おり、このオイル塗布ローラが定着ローラに接しながら
回転する間に定着ローラに微量のシリコーンオイルを塗
布して記録紙の剥離性を良くする。また、同時に、定着
ローラに付着したトナーをふき取ってオフセットを防止
する。2. Description of the Related Art Many fixing devices of electrostatic copying machines and electrophotographic printers include a component called an oil application roller. When the oil application roller rotates while being in contact with the fixing roller, a small amount of the oil is applied to the fixing roller. A silicone oil is applied to improve the releasability of the recording paper. At the same time, the toner adhered to the fixing roller is wiped off to prevent offset.
【０００３】オイル塗布ローラが定着ローラに塗布する
シリコーンオイルは、別に用意されたオイル貯留部材か
らオイル塗布ローラに逐次供給される場合もあるが、オ
イル塗布ローラ自身に一定量を保持させておき、保持さ
せたオイルがなくなったときはオイル塗布ローラ全体を
交換することが多い。[0003] Silicone oil applied to the fixing roller by the oil application roller may be sequentially supplied to the oil application roller from a separately prepared oil storage member. When the retained oil runs out, the entire oil application roller is often replaced.
【０００４】オイル塗布ローラにシリコーンオイルを保
持させる機構には様々なものがあるが、ローラの芯軸を
円筒状もしくは丸棒状の多孔質成形体で形成し、それに
シリコーンオイルを含浸させて気孔部分にシリコーンオ
イルを保持させ、該芯軸の表面をアラミド繊維など耐熱
性の良い繊維で作ったフェルトで被覆したもの（たとえ
ば特開平７−１９７９３０号公報，特開平９−１０８６
０１号公報等）は、簡単な構造でありながら長期間安定
したオイル吐出が可能であり、優れている。There are various mechanisms for holding the silicone oil on the oil application roller. The core axis of the roller is formed of a cylindrical or round rod-shaped porous molded body, and impregnated with silicone oil to form pores. The core shaft is coated with a felt made of a heat-resistant fiber such as aramid fiber (for example, JP-A-7-197930, JP-A-9-1086).
No. 01) is excellent in that it has a simple structure but can stably discharge oil for a long period of time.
【０００５】この方式のオイル塗布ローラでは、芯軸の
気孔部分に保持されたオイルが濡れと毛細管現象により
少しずつ芯軸表面からフェルト層に浸透し、フェルト層
全体に分布する。定着ローラはフェルト層表面に接触し
ながら回転することによりオイルを塗布される。定着ロ
ーラにオイルが塗布されてフェルト中のオイルが減少す
ると上述の経路によりオイルがフェルトに補給され、フ
ェルト層は常に適量のオイルを含んだ状態で安定したオ
イル塗布を行う。In this type of oil application roller, the oil retained in the pores of the core shaft gradually penetrates the felt layer from the surface of the core shaft by wetting and capillary action, and is distributed throughout the felt layer. The fixing roller is coated with oil by rotating while contacting the surface of the felt layer. When oil is applied to the fixing roller and the amount of oil in the felt decreases, the oil is replenished to the felt by the above-described path, and the felt layer always performs a stable oil application while containing an appropriate amount of oil.
【０００６】しかしながら、従来のこの種のオイル塗布
ローラは安定して塗布可能なオイル量に制限があり、こ
のため、通常の複写機の場合よりもかなり多量のオイル
塗布が必要なカラープリンタに用いるとオイル塗布量が
不足する傾向があると指摘されている。However, this type of conventional oil application roller has a limited amount of oil that can be applied stably, and is therefore used in a color printer that requires a considerably larger amount of oil application than in a normal copying machine. It is pointed out that the oil application amount tends to be insufficient.
【０００７】[0007]
【発明が解決しようとする課題】そこで本発明の目的
は、上述のフェルト被覆多孔質芯軸形式のオイル塗布ロ
ーラをさらに改良し、従来品よりも多量のオイル塗布が
可能なものとすることにある。Accordingly, an object of the present invention is to further improve the above-described felt-coated porous core shaft type oil application roller so that a larger amount of oil can be applied than conventional products. is there.
【０００８】[0008]
【課題を解決するための手段】種々検討の結果、フェル
ト被覆多孔質芯軸形式のオイル塗布ローラにおけるオイ
ル吐出量は芯軸の微細構造だけでなく表面フェルト層の
特性に依存するところも大きく、オイル吐出量を増やす
にはフェルト層の改質が必要であると考えられた。As a result of various studies, the amount of oil discharged from a felt-coated porous core shaft type oil application roller largely depends not only on the fine structure of the core shaft but also on the characteristics of the surface felt layer. It was considered that the felt layer had to be modified in order to increase the oil discharge amount.
【０００９】本発明は上記知見に基づき表面フェルト層
に改良を加えてオイル吐出能力を向上させたたオイル塗
布ローラ、すなわち多孔質成形体からなる芯軸の表面を
耐熱性フェルトで被覆してなるオイル塗布ローラにおい
て、フェルトがアルミノシリケート質繊維を主材とする
平均気孔径５０μm以下、好ましくは約１５μm以下のも
のであることを特徴とするオイル塗布ローラを提供する
ものである。According to the present invention, an oil application roller having improved oil discharging ability by improving a surface felt layer based on the above findings, that is, a core shaft made of a porous molded body is coated with a heat-resistant felt. It is an object of the present invention to provide an oil application roller characterized in that the felt has an average pore diameter of 50 μm or less, preferably about 15 μm or less, mainly composed of aluminosilicate fiber.
【００１０】ここでフェルトの「平均気孔径」とは、フ
ェルトについて下記測定法により測定される値である。Here, the "average pore diameter" of the felt is a value measured by the following measuring method for the felt.
【００１１】測定法：倍率１００倍のごく浅い焦点深度
の顕微鏡でフェルト表面を観察し、４本の繊維で囲まれ
た四角形の気孔開口部を測定対象として選ぶ（四角形以
外の形状の開口部は測定対象としない）。選んだ四角形
の開口部について、１辺の中点から対辺の中点までの距
離ａを測定し、さらに残る２辺間の同様の距離ｂを測定
して、ａ，ｂの平均値ｒを求める。顕微鏡の１視野あた
り２０の測定対象を無作為に選んで上記測定を行い、そ
れを１０視野ぶん繰り返す。得られた合計２００のｒの
平均値をもって、平均気孔径とする。Measuring method: The felt surface is observed with a microscope having a very shallow depth of focus with a magnification of 100 times, and a rectangular pore opening surrounded by four fibers is selected as an object to be measured. Not measured). With respect to the selected rectangular opening, the distance a from the midpoint of one side to the midpoint of the opposite side is measured, and the same distance b between the remaining two sides is measured to obtain the average value r of a and b. . The above measurement is performed by randomly selecting 20 measurement objects per one visual field of the microscope, and repeating the same for 10 visual fields. The average value of r of the obtained total 200 is defined as the average pore diameter.
【００１２】[0012]
【発明の実施の形態】本発明によるオイル塗布ローラ
は、上述のように表面のフェルト層に特徴があり、した
がって芯軸部分は特に限定されるものではないが、本発
明の特徴とする表面フェルト層と組み合わせたとき特に
優れた性能のオイル塗布ローラとなるのは、特開平９−
１０８６０１号公報に記載されているコーティング液保
持部材、すなわちアルミノシリケート質繊維、アルミナ
繊維、ガラス繊維、アラミド繊維等の耐熱性繊維が結合
剤によって相互に結合されてなり繊維間に結合剤の存在
しない微細な連通空隙および均一に分布した孔径０.０
５〜２mmの気孔群を有し総空隙率が３０〜９０％である
多孔質成形体よりなるものである（総空隙率は微細な繊
維間空隙と大径の気孔群の全体積の繊維質成形体体積に
対する比率；〔１−嵩比重／真比重〕×１００に相当す
る。）。DESCRIPTION OF THE PREFERRED EMBODIMENTS The oil application roller according to the present invention is characterized by the felt layer on the surface as described above. Therefore, the core shaft portion is not particularly limited. An oil application roller having particularly excellent performance when combined with a layer is disclosed in
No. 108601, a coating liquid holding member, that is, heat-resistant fibers such as aluminosilicate fiber, alumina fiber, glass fiber, and aramid fiber are mutually bonded by a binder, and there is no binder between the fibers. Fine communication pores and uniformly distributed pore size 0.0
It is made of a porous molded body having a pore group of 5 to 2 mm and a total porosity of 30 to 90% (total porosity is a fiber volume of a total volume of fine inter-fiber pores and large pore group). Ratio to the volume of the molded article; [1-bulk specific gravity / true specific gravity] × 100).
【００１３】連通空隙を有するこのコーティング液保持
部材の表面には、成形体中に均一に分布する気孔や繊維
間空隙の一部が開口している。このコーティング液保持
部材を芯軸として用いた場合、オイルは微細な繊維間空
隙と気孔群の両方に保持されるが、特に気孔群がオイル
の貯槽となり、繊維間空隙がオイルの主要吐出経路とな
る。オイルの貯槽となる大きな気孔部分は、大径のもの
であるほど、またその数が多いほど、保持可能なオイル
量が多いが、機械的強度を低下させるので、孔径約０.
５〜２mmのものが適量（通常、総空隙率の値が３０〜９
０％程度になる程度に）存在するものがよい。[0013] On the surface of the coating liquid holding member having the communication gap, a part of pores and inter-fiber gaps which are uniformly distributed in the molded article is opened. When this coating liquid holding member is used as a core shaft, the oil is retained in both the fine inter-fiber voids and the pore groups. Become. The larger the diameter of the large pore portion serving as the oil storage tank and the greater the number thereof, the larger the amount of oil that can be retained, but the mechanical strength is reduced.
An appropriate amount of 5 to 2 mm (usually, the value of the total porosity is 30 to 9
It is preferable that the metal is present (to an extent of about 0%).
【００１４】芯軸を覆うフェルトは、アルミノシリケー
ト質繊維を主材とし且つ平均気孔径が５０μm以下、好
ましくは約１５μm以下のものであることが重要であ
る。It is important that the felt covering the core axis be mainly composed of aluminosilicate fiber and have an average pore diameter of 50 μm or less, preferably about 15 μm or less.
【００１５】本発明がこのようなフェルトを採択した理
由は、フェルト層中の気孔が微細なほど毛細管現象によ
り芯軸からオイルを吸い上げる力が強いためであり、ま
た繊維径が約１〜４μmと小さいアルミノシリケート質
繊維を用いることにより初めてこのような微細気孔のフ
ェルトを得ることができるためである（たとえば繊維径
が約１５μmのアラミド繊維では平均気孔径が約１００
μm以上のフェルトしか作れない）。ただし、気孔が微
細であってもシリコーンオイルによって濡れにくい素材
からなるフェルトでは毛細管現象による吸引力も弱い
が、アルミノシリケート質繊維はシリコーンオイルとの
親和性にも優れているので、アルミノシリケート質繊維
を主材とする微細気孔のフェルト層を設けた本発明のオ
イル塗布ローラは芯軸中のオイルを円滑に吸い上げてそ
れを定着ローラに移行させる能力に優れている。The reason why the present invention adopts such a felt is that the finer the pores in the felt layer, the stronger the ability to absorb oil from the core shaft by capillary action, and the fiber diameter is about 1 to 4 μm. This is because such fine pore felt can be obtained only by using a small aluminosilicate fiber (for example, an aramid fiber having a fiber diameter of about 15 μm has an average pore diameter of about 100 μm).
Only felts of μm or more can be made). However, even if the pores are fine, felt made of a material that is not easily wetted by silicone oil has a weak suction force due to the capillary phenomenon. The oil application roller of the present invention provided with a felt layer of fine pores as a main material has an excellent ability to smoothly suck up the oil in the core shaft and transfer it to the fixing roller.
【００１６】本発明のオイル塗布ローラに用いる上記フ
ェルトは、繊維径約１〜４μmの、一般的なアルミノシ
リケート質繊維またはこれと同量以下の耐熱性有機繊維
との混合物と適量の耐熱性結合剤を用いて常法により製
造することができる。靭性においてアルミノシリケート
質繊維よりも優れている有機繊維の併用は、フェルトの
柔軟性と強度を向上させ、オイル保持部材を被覆する場
合の巻き付け作業を容易にする効果がある。併用する有
機繊維として好ましいものの具体例は、アラミド繊維、
ポリエステル繊維、ポリアクリロニトリル繊維、ポリイ
ミド繊維、ポリビニルアルコール繊維等である。The felt used for the oil application roller of the present invention is composed of a general aluminosilicate fiber having a fiber diameter of about 1 to 4 μm or a mixture of a heat-resistant organic fiber having the same amount or less and an appropriate amount of heat-resistant bond. It can be produced by an ordinary method using an agent. The combined use of organic fibers having better toughness than aluminosilicate fibers has the effect of improving the flexibility and strength of the felt and facilitating the winding operation when covering the oil holding member. Specific examples of preferred organic fibers used in combination include aramid fibers,
Examples include polyester fiber, polyacrylonitrile fiber, polyimide fiber, and polyvinyl alcohol fiber.
【００１７】フェルトの厚さは約０.３〜３mmが適当で
ある。これよりも薄いと強度不足になり、また厚すぎる
と、オイル保持部材への巻き付けが困難となる。The thickness of the felt is suitably about 0.3 to 3 mm. If it is thinner than this, the strength will be insufficient, and if it is too thick, it will be difficult to wind it around the oil holding member.
【００１８】上述の芯軸をシリコーンオイル等、必要と
されるオイルに浸漬してオイルを含浸させ、次いで芯軸
表面を上記フェルトで覆い、ＲＴＶゴム（室温硬化型ゴ
ム）等でフェルトを芯軸に固定すれば、本発明のオイル
塗布ローラが得られる。The above core shaft is immersed in a required oil such as silicone oil to impregnate the oil, and then the surface of the core shaft is covered with the above felt, and the felt is coated with RTV rubber (room temperature curing type rubber) or the like. , The oil application roller of the present invention can be obtained.
【００１９】[0019]
【実施例】実施例１ 平均繊維径が２.５μmのアルミノシリケート質繊維１０
０重量部、平均粒径が０.２mmの粒状ポリスチレン１０
０重量部、ケイ酸ソーダ３０重量部（固形分として）、
メチルセルロース２０重量部、および水２００重量部を
混練し、得られた可塑性混合物を円筒状に成形したのち
１０５℃で乾燥し、さらに８００℃で５時間焼成するこ
とによりポリスチレンを消失させて、多孔質円筒状成形
体（外径２２.５mm、内径６mm、長さ３００mm、総空隙
率７６％）を得た。EXAMPLE 1 Aluminosilicate fiber 10 having an average fiber diameter of 2.5 μm
0 parts by weight, granular polystyrene 10 having an average particle size of 0.2 mm
0 parts by weight, 30 parts by weight of sodium silicate (as solid content),
20 parts by weight of methylcellulose and 200 parts by weight of water are kneaded, and the obtained plastic mixture is formed into a cylindrical shape, dried at 105 ° C., and further calcined at 800 ° C. for 5 hours to eliminate polystyrene, thereby obtaining a porous material. A cylindrical molded body (outer diameter 22.5 mm, inner diameter 6 mm, length 300 mm, total porosity 76%) was obtained.
【００２０】この芯軸を粘度３００センチストークスの
シリコーンオイルに浸漬して約７６ｇのシリコーンオイ
ルを含浸させた後、中空部に直径６mmの駆動軸を挿通、
固定した。さらに、芯軸表面に厚さ２mm、平均気孔径１
０.４μmのフェルト（繊維組成：平均繊維径２.５μmの
アルミノシリケート質繊維６７重量％，平均繊維径約１
０μmのアラミド繊維３３重量％）を巻き付けて固定し
た。After this core shaft was immersed in silicone oil having a viscosity of 300 centistokes to impregnate about 76 g of silicone oil, a drive shaft having a diameter of 6 mm was inserted into the hollow portion.
Fixed. Furthermore, a thickness of 2 mm and an average pore diameter of 1
0.4 μm felt (fiber composition: 67% by weight of aluminosilicate fiber having an average fiber diameter of 2.5 μm, average fiber diameter of about 1
Aramid fiber of 0 μm (33% by weight) was wound and fixed.
【００２１】得られたオイル塗布ローラをオイル吐出特
性試験機に装着し、実際の使用条件に合わせた連続通紙
条件（通紙速度：３２枚／分）で試験機を作動させ、オ
イル吐出量の変化を調べた。その結果、記録紙１０００
枚当たりのオイル吐出量は積算通紙枚数が２万枚に達す
るまで約２ｇを維持した。The obtained oil application roller was mounted on an oil discharge characteristic tester, and the tester was operated under continuous paper passing conditions (sheet passing speed: 32 sheets / min) according to actual use conditions, and the oil discharge amount was measured. Was examined for changes. As a result, the recording paper 1000
The oil discharge amount per sheet was maintained at about 2 g until the accumulated number of sheets passed reached 20,000 sheets.
【００２２】比較例１ フェルトをアラミド繊維のみからなる同じ厚さのもの
（平均気孔径１４０μm）に変えたほかは実施例１のも
のと同じオイル塗布ローラについて実施例１の場合と同
様のオイル吐出特性試験を行なった。記録紙１０００枚
当たりのオイル吐出量は、積算通紙枚数が２万枚に達す
るまで、最高０.２ｇであった。COMPARATIVE EXAMPLE 1 The same oil discharging roller as in Example 1 was used for the same oil application roller as in Example 1 except that the felt was changed to one of the same thickness consisting of only aramid fibers (average pore diameter 140 μm). A characteristic test was performed. The oil discharge amount per 1000 recording sheets was a maximum of 0.2 g until the accumulated sheet number reached 20,000 sheets.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 友末 信也 静岡県浜松市上島５−５−７ (72)発明者 深瀬 宗彦 静岡県浜松市上島５−５−７ (72)発明者 岸田 敏之 静岡県浜松市上島５−５−７ (72)発明者 仲間 茂 静岡県浜松市上島５−５−７ (72)発明者 阿部 勇美 静岡県浜松市上島５−５−７ (72)発明者 古屋 博規 栃木県黒磯市下厚崎226−20 株式会社ゼ ニス内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinya Tomozue 5-5-7 Kamijima, Hamamatsu City, Shizuoka Prefecture (72) Inventor Munehiko Fukase 5-5-7, Kamijima, Hamamatsu City, Shizuoka Prefecture (72) Inventor Toshiyuki Kishida Shizuoka 5-7-7 Kamijima, Hamamatsu City, Japan (72) Inventor Shigeru 5-5-7 Kamijima, Hamamatsu City, Shizuoka Prefecture (72) Inventor Yumi Abe 5-5-7, Kamijima, Hamamatsu City, Shizuoka Prefecture (72) Inventor Furuya Hiroki 226-20 Shimoatsuzaki, Kuroiso City, Tochigi Prefecture Zenith Corporation
Claims (3)
る芯軸の表面を耐熱性フェルトで被覆してなるオイル塗
布ローラにおいて、フェルトがアルミノシリケート質繊
維を主材とする平均気孔径５０μm以下のものであるこ
とを特徴とするオイル塗布ローラ。1. An oil applying roller comprising a core shaft made of a porous molded body impregnated with oil and coated with a heat-resistant felt, wherein the felt has an average pore diameter of 50 μm or less mainly composed of aluminosilicate fiber. An oil application roller, characterized in that:
る芯軸の表面を耐熱性フェルトで被覆してなるオイル塗
布ローラにおいて、フェルトがアルミノシリケート質繊
維５０重量％以上、アラミド繊維５０重量％未満の繊維
混合物からなる平均気孔径５０μm以下のものであるこ
とを特徴とするオイル塗布ローラ。2. An oil application roller comprising a core formed of a porous molded body impregnated with oil and coated with a heat-resistant felt, wherein the felt comprises 50% by weight or more of aluminosilicate fiber and 50% by weight of aramid fiber. An oil application roller having an average pore diameter of 50 μm or less, comprising a fiber mixture having a diameter of less than 50 μm.
請求項１または請求項２に記載のオイル塗布ローラ。3. The oil application roller according to claim 1, wherein the average pore diameter of the felt is 15 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9816998A JPH11282305A (en) | 1998-03-27 | 1998-03-27 | Oil application roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9816998A JPH11282305A (en) | 1998-03-27 | 1998-03-27 | Oil application roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11282305A true JPH11282305A (en) | 1999-10-15 |
Family
ID=14212567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9816998A Pending JPH11282305A (en) | 1998-03-27 | 1998-03-27 | Oil application roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11282305A (en) |
-
1998
- 1998-03-27 JP JP9816998A patent/JPH11282305A/en active Pending
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