JPS61245178A - Coating device for mold release agent - Google Patents
Coating device for mold release agentInfo
- Publication number
- JPS61245178A JPS61245178A JP8611485A JP8611485A JPS61245178A JP S61245178 A JPS61245178 A JP S61245178A JP 8611485 A JP8611485 A JP 8611485A JP 8611485 A JP8611485 A JP 8611485A JP S61245178 A JPS61245178 A JP S61245178A
- Authority
- JP
- Japan
- Prior art keywords
- release agent
- mold release
- heat
- coating device
- resistant
- 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
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
- G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
- G03G15/2025—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/20—Details of the fixing device or porcess
- G03G2215/2093—Release agent handling devices
- G03G2215/2096—Release agent handling devices using porous fluoropolymers for wicking the release agent
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
- Coating Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はＰＰＣ複写機、ラインプリンタ、ファクシミリ
等の定着装置の離型剤塗布装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a release agent coating device for a fixing device such as a PPC copying machine, a line printer, or a facsimile machine.
（従来技術）
この種定着装置の離型剤塗布装置のうちローラ状のもの
として例えば下記のようなものがある。(Prior Art) Among the release agent applicators of this type of fixing device, there are, for example, the following roller-shaped release agent applicators.
■フェルトタイプ（第５図参照）
充実状乃至パイプ状の芯金（１）に耐熱フェルト（２）
をローラ状に被せ、更にこのフェルトに離型剤（通常は
シリコーンオイル）を含浸させたもの。■Felt type (see Figure 5) Heat-resistant felt (2) on a solid or pipe-shaped core (1)
is wrapped around a roller, and this felt is further impregnated with a release agent (usually silicone oil).
■パイプタイプ（第６図参照）
先に本出願人が特許出願したように穴（３）あきパイプ
（４）の外層に４弗化工チレン樹脂多孔質体（５）の層
を設け、パイプ内に離型剤（６）を封入したもの。■Pipe type (see Figure 6) As previously applied for a patent by the applicant, a layer of 4-fluoroethylene resin porous material (5) is provided on the outer layer of the perforated pipe (4), and the inside of the pipe is encapsulated with a mold release agent (6).
なお上記の離型剤塗布装置（力は第７図のように、定着
ローラ（８）あるいは加圧ローラ（９）に接触させて離
型剤の塗布を行なう。なお第７図中（１のはヒータ、（
１１）は剥離爪である。The release agent is applied by contacting the fixing roller (8) or the pressure roller (9) with the above-mentioned release agent coating device (the force is as shown in FIG. 7). is the heater, (
11) is a peeling nail.
（発明が解決しようとする問題点）
しかし乍ら上記に於いては未だ下記のような問題点があ
る。(Problems to be Solved by the Invention) However, the above still has the following problems.
■フェルトタイプ
■フェルトの目にトナ粒子が入り込む。即ち定着ローラ
上にオフセットしたトナにより目詰りし、寿命が短い。■Felt type■Tona particles enter the felt eyes. In other words, the toner offset on the fixing roller causes clogging, resulting in a short service life.
＠フェルトが弾性体ではないため、長期使用により、寸
法変化が生じ、ローラとの接触が悪くなる。@Since felt is not an elastic body, long-term use causes dimensional changes and poor contact with the roller.
■パイプタイプ
■塗布部に柔軟性がないためローラの母線方向に均一な
接触を得ることが難しい。■Pipe type■Difficult to obtain uniform contact in the direction of the generatrix of the roller because the application part is not flexible.
＠オイルの自重がかかるためオイルかわずがずつしみ出
す。即ち長期間の停止時に下方向にオイルが吐出する。＠Due to the oil's own weight, the oil oozes out little by little. In other words, oil is discharged downward when the engine is stopped for a long period of time.
上記に鑑み本発明はこの様な問題点を解消するため開発
されたものである。In view of the above, the present invention has been developed to solve these problems.
（問題点を解決するための手段）
本発明の離型剤塗布装置に於いては、内壁から外壁への
貫通口を有するパイプ状の芯金の外側に耐熱性の連続気
泡体からなる離型剤保持層を設け、更にその外側に弗素
樹脂多孔質チューブを被せ、離型剤保持層に離型剤を含
浸させたことを特徴としている。(Means for Solving the Problems) In the mold release agent applicator of the present invention, a mold release agent made of a heat-resistant open-cell material is provided on the outside of a pipe-shaped core bar having a through hole from the inner wall to the outer wall. It is characterized in that a release agent holding layer is provided, and a porous fluororesin tube is further placed on the outside of the layer, and the release agent holding layer is impregnated with a release agent.
（作用）
上記連続気泡体によりローラ状塗布装置は定着又は加圧
ローラとその母線方向に長期にわたり均一な接触を保ち
得る。(Function) The open-cell structure allows the roller coating device to maintain uniform contact with the fixing or pressure roller in the direction of its generatrix for a long period of time.
又弗素樹脂多孔質膜により離型剤の浸出が適量、均一に
行われ、しかもトナ粒子の目詰りがない。In addition, the fluororesin porous membrane allows the release agent to be leached in an appropriate amount and uniformly, and there is no clogging of toner particles.
更に又芯金の貫通口により連続気泡体への離型剤の真空
含浸が簡易に行える。Furthermore, the open cell can be easily impregnated with a mold release agent in vacuum through the through-hole of the core metal.
以下に詳細に本発明を説明する。−第１図に示す様に本
発明の離型剤塗布装置は、スリットあるいは穴（１５）
をあけたパイプ状の芯金（１６）の外側に耐熱性の連続
気泡体（１７）のオイル含浸層を設け、更にその外側に
弗素樹脂の多孔質チューブ（１８）を被せ、チューブの
両端をシールし、芯金の内側即ち中空部（１９’）より
離型剤（１９）を含浸させて構成させる。なお第１図（
２のはシール部材である。The present invention will be explained in detail below. - As shown in Figure 1, the mold release agent application device of the present invention has a slit or hole
An oil-impregnated layer of heat-resistant open cell material (17) is provided on the outside of the pipe-shaped core metal (16), and a porous fluororesin tube (18) is placed on the outside of the layer, and both ends of the tube are It is sealed, and a mold release agent (19) is impregnated from the inside of the core metal, that is, the hollow part (19'). In addition, Figure 1 (
The second part is a seal member.
この場合、耐熱性連続気泡体としては耐熱フェルト、発
泡ウレタンに耐熱性のゴム例えばシリコーンゴム、弗素
ゴム等をコーティングしたもの（ゴム粘度が低い場合は
、コーティング厚が薄いため目づまりせず、もし目づま
りしても溶液の段階エアを吹きつければ目づまりはとれ
る。）がある。In this case, the heat-resistant open-cell material is heat-resistant felt, foamed urethane coated with heat-resistant rubber such as silicone rubber, fluorine rubber, etc. Even if it becomes clogged, it can be cleared by blowing air from the solution.)
また弗素樹脂多孔質チューブの内径は気泡体の外径と同
じか、外径よりも小さい方が多孔質チューブと気泡体の
密着がよく、よりよいローラが得られる。また両端のシ
ールは耐熱ゴムを使うかリング状の溶融性の弗素樹脂を
両側より入れ、多孔質チューブと熱融着してもよい。Further, if the inner diameter of the fluororesin porous tube is the same as or smaller than the outer diameter of the foam, the porous tube and the foam will be in better contact with each other, and a better roller can be obtained. The seals at both ends may be made of heat-resistant rubber or a ring-shaped meltable fluororesin may be inserted from both sides and heat fused to the porous tube.
又弗素樹脂多孔質チューブは、孔径が０，１〜５μ那、
多孔度が４０〜８５％、内径が１０〜４０閣、肉Ｊｌ（
０，１〜５順の４弗化エチレン樹脂からなる多孔質チュ
ーブが好適である。In addition, the fluororesin porous tube has a pore diameter of 0.1 to 5 μιι,
Porosity is 40-85%, inner diameter is 10-40%, meat Jl (
Porous tubes made of polytetrafluoroethylene resin in the order of 0,1 to 5 are suitable.
更に離型剤は１．０００Ｃ，０００ｃ．ｓ． 〜３００
，０００Ｃ，０００ｃ．ｓ．がふされしく、第２図のよ
うに芯金の片端をシールし、もう１端より注入して真空
含浸を行なうのが効率的でよい。なお第２図中（２１）
は本発明離型剤塗布装置の未含浸、芯金片端末シールの
ローラ状体、（２２）は真空容器、（２３）は真空引、
（１９）は離型剤である。Furthermore, the mold release agent is 1.000C,000c. s. ~300
,000C,000c. s. Therefore, it is efficient and effective to seal one end of the core metal and inject from the other end to perform vacuum impregnation, as shown in FIG. In addition, (21) in Figure 2
(22) is a vacuum container, (23) is a vacuum-evacuated body,
(19) is a mold release agent.
（実施例） 以下に本発明の理解を助けるため実施例を述べる。(Example) Examples will be described below to help understand the present invention.
外径グ６Ｉ＋Ｉ１ｍで肉厚１．０団、長さ６５０調のＳ
ＵＳ製パイプ（１６）に第３図のような穴（１５）をあ
けた。S with an outer diameter of 6I+I1m, a wall thickness of 1.0mm, and a length of 650mm.
A hole (15) as shown in Fig. 3 was made in the US made pipe (16).
これにシリコーンゴムを被覆した発泡ウレタン（商品名
二モルトシル、ＭＴＰ化成（株）製） （１７）にて第
４図のような連続気泡の弾性ローラを製作した。第、４
図中（Ｌｆ）＝３５（１ｍ、（Ｌｚ）＝３００調、Ｄ＝
２０ＭＲである。An open-cell elastic roller as shown in FIG. 4 was manufactured using foamed urethane (trade name Nimoltosil, manufactured by MTP Kasei Co., Ltd.) (17) coated with silicone rubber. No. 4
In the figure (Lf) = 35 (1 m, (Lz) = 300 tone, D =
It is 20MR.
これに内径＄１９ｍで、肉厚が０．５ ｔｍ 、長さ３
４０ｍ＋の４弗化エチレン樹脂多孔質チユーブを被せた
。この多孔質チューブは孔径が１．０μｍで多孔度は７
５％であった。更に両サイドに内径がｙｆ ５．９ ｒ
ｉｍで外径メ１６簡、厚み５ｍのＦＥＰ製のリングをさ
し込んで４弗化エチレン樹脂多孔質チユーブを加熱して
収縮させるとともに融着して両サイドをシールし、第１
図のようなローラを製作した。これに芯金の内側より１
０万ｃ、ｓ、のシリコーンオイル（東しシリコーン製５
Ｈ２００）を約３０ｇ真空含浸させ離型剤の塗布装置と
した。これを弗素樹脂をコーティングした定着ローラ上
にセットし従動で回転させて通紙テストを行なったとこ
ろオフセット（二重写し）現象の発生はなく弗素樹脂の
摩耗も少なく、正常な定着がなされた。This has an inner diameter of $19m, a wall thickness of 0.5tm, and a length of 3
It was covered with a 40m+ polytetrafluoroethylene resin porous tube. This porous tube has a pore diameter of 1.0 μm and a porosity of 7.
It was 5%. Furthermore, the inner diameter on both sides is yf 5.9 r
Insert an FEP ring with an outer diameter of 16 mm and a thickness of 5 m into the tube, heat the polytetrafluoroethylene resin porous tube to shrink it, and fuse it to seal both sides.
I made a roller as shown in the figure. 1 from the inside of the core metal.
00,000 c, s, silicone oil (manufactured by Toshi Silicone 5)
Approximately 30 g of H200) was vacuum impregnated into a mold release agent coating device. When this was set on a fixing roller coated with fluororesin and rotated by a driven roller to perform a paper feeding test, there was no offset (double copying) phenomenon, there was little wear on the fluororesin, and normal fusing was achieved. .
（発明の効果）
以上の様な本発明によれば下記の様な効果を有している
。(Effects of the Invention) The present invention as described above has the following effects.
■芯金と弗素樹脂多孔質チューブ間に連続気泡体が存在
するためローラの母線方向に長期にわたり均一な接触が
得られる。■Since open cells exist between the core metal and the porous fluororesin tube, uniform contact can be obtained over a long period of time in the direction of the generatrix of the roller.
■ローラ外周面が弗素樹脂多孔質チューブであるためト
ナ粒子による目詰りがなく長期間にわたって使用可能で
あ゛る。■Since the outer peripheral surface of the roller is made of a porous fluororesin tube, it can be used for a long period of time without being clogged with toner particles.
第１図〜第４図は本発明の定着装置を説明する図であっ
て、第１図はローラ状の離型剤塗布装置の斜視的正面図
（図（ａ））とその横断面図（たソし拡大図）（図（ｂ
））、第２図はローラの離型剤塗布装置の離型剤含浸方
法の説明図、第３図は実施例を説明する図であって芯金
の正面図、第４図は実施例を説明する図であってローラ
状の未完成塗布装置の正面図を夫々例示している。
第５図〜第７図は従来例を説明する図であって、第５図
はフェルトタイプの離型剤塗布装置の正面図（図（ａ）
）と横断面図（たソし拡大図）（図（ｂ））を、第６図
はパイプタイプの離型剤塗布装置の正面図（図（ａ））
と横断面図（たソし拡大図）（図（ｂ））、第７図はこ
れら離型剤塗布装置を用いてなす定着装置の横断面図を
夫々例示している。
（１５）・・・スリットあるいは穴、
（１６）・・・パイプ状の芯金、
（１７）・・・耐熱性の連続気泡体、
（１８）・・・弗素樹脂の多孔質チューブ、（１９）・
・・離型剤、
（２０）・・・シール部、
（２１）・・・未含浸、芯金片端末シールのローラ状体
、（２２）・・・真空容器、
（２３）・・・真空引き
オ ｌ 図
（ｂ）
第２図
オ ５ 図
（ｂ）
オ ６ 図
（ｂ）
オフ図1 to 4 are diagrams for explaining the fixing device of the present invention, and FIG. 1 is a perspective front view (Figure (a)) of a roller-shaped release agent coating device and a cross-sectional view ( Enlarged view) (Figure (b)
)), Fig. 2 is an explanatory diagram of a method of impregnating a mold release agent in a roller mold release agent applicator, Fig. 3 is a diagram illustrating an embodiment, and is a front view of the core bar, and Fig. 4 is a diagram showing an embodiment. FIG. 2 is an explanatory diagram illustrating a front view of an unfinished roller-shaped coating device. 5 to 7 are diagrams for explaining conventional examples, and FIG. 5 is a front view of a felt type mold release agent applicator (Figure (a)
) and a cross-sectional view (enlarged view) (Figure (b)), and Figure 6 is a front view (Figure (a)) of a pipe-type mold release agent applicator.
, a cross-sectional view (enlarged view) (FIG. 7(b)), and FIG. 7 respectively illustrate a cross-sectional view of a fixing device formed using these release agent coating devices. (15)...Slit or hole, (16)...Pipe-shaped core metal, (17)...Heat-resistant open cell, (18)...Porous tube of fluororesin, (19)... )・
・Release agent, (20) ・Seal part, (21) ・Unimpregnated, roller-shaped body for sealing the end of the core piece, (22) ・Vacuum container, (23) ・Vacuum Pull O l Diagram (b) Diagram 2 O 5 Diagram (b) O 6 Diagram (b) Off diagram
Claims (6)
の外側に耐熱性の連続気泡体からなる離型剤保持層を設
け、更にその外側に弗素樹脂多孔質チューブを被せ、離
型剤保持層に離型剤を含浸させたことを特徴とする離型
剤塗布装置。(1) A mold release agent holding layer made of heat-resistant open cells is provided on the outside of a pipe-shaped core metal having a through hole from the inner wall to the outer wall, and a porous fluororesin tube is further covered on the outside to release the mold. A mold release agent application device characterized in that a mold release agent is impregnated into an agent holding layer.
求の範囲第（１）項記載の離型剤塗布装置。(2) The release agent coating device according to claim (1), wherein the heat-resistant open-cell material is heat-resistant felt.
ムを被覆したものである特許請求の範囲第（１）項記載
の離型剤塗布装置。(3) The release agent coating device according to claim (1), wherein the heat-resistant open-cell body is made of urethane foam coated with heat-resistant rubber.
範囲第（３）項記載の離型剤塗布装置。(4) The release agent coating device according to claim (3), wherein the heat-resistant rubber is silicone rubber.
（３）項記載の離型剤塗布装置。(5) The release agent coating device according to claim (3), wherein the heat-resistant rubber is fluororubber.
ｍ、多孔度が４０〜８５％、内径が１０〜４０ｍｍ、肉
厚が０．１〜５ｍｍの４弗化エチレン樹脂からなる多孔
質チューブで、含浸させる離型剤が １，０００ｃ．ｓ．〜３００，０００ｃ．ｓ．の粘度の
シリコーンオイルである特許請求の範囲第（１）項記載
の離型剤塗布装置。(6) Fluororesin porous tube has a pore diameter of 0.1 to 5μ
m, a porous tube made of tetrafluoroethylene resin with a porosity of 40 to 85%, an inner diameter of 10 to 40 mm, and a wall thickness of 0.1 to 5 mm, and impregnated with a mold release agent of 1,000 c.m. s. ~300,000c. s. The mold release agent application device according to claim (1), wherein the mold release agent coating device is a silicone oil having a viscosity of .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8611485A JPS61245178A (en) | 1985-04-22 | 1985-04-22 | Coating device for mold release agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8611485A JPS61245178A (en) | 1985-04-22 | 1985-04-22 | Coating device for mold release agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61245178A true JPS61245178A (en) | 1986-10-31 |
Family
ID=13877668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8611485A Pending JPS61245178A (en) | 1985-04-22 | 1985-04-22 | Coating device for mold release agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61245178A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4908670A (en) * | 1988-06-20 | 1990-03-13 | Eastman Kodak Company | Wick for fixing roller |
| US5045889A (en) * | 1990-08-20 | 1991-09-03 | Eastman Kodak Company | Release liquid applying wick having a grooved feed tube |
| US5232499A (en) * | 1990-10-01 | 1993-08-03 | W. L. Gore & Associates, Inc. | Fluid metering and coating device |
| US5482552A (en) * | 1993-03-19 | 1996-01-09 | Japan Gore-Tex, Inc. | Liquid metering and coating device |
| EP0783143A1 (en) * | 1995-12-28 | 1997-07-09 | Nitto Kogyo Co., Ltd. | Oil application roll for electrophotograph fixation and method of fabricating the same |
| US5779795A (en) * | 1995-08-04 | 1998-07-14 | W. L. Gore & Associates, Inc. | Low surface energy fluid metering and coating device |
| JP2021070010A (en) * | 2019-11-03 | 2021-05-06 | 日本ルブ・システム株式会社 | Release agent applying roller |
-
1985
- 1985-04-22 JP JP8611485A patent/JPS61245178A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4908670A (en) * | 1988-06-20 | 1990-03-13 | Eastman Kodak Company | Wick for fixing roller |
| US5045889A (en) * | 1990-08-20 | 1991-09-03 | Eastman Kodak Company | Release liquid applying wick having a grooved feed tube |
| US5232499A (en) * | 1990-10-01 | 1993-08-03 | W. L. Gore & Associates, Inc. | Fluid metering and coating device |
| US5482552A (en) * | 1993-03-19 | 1996-01-09 | Japan Gore-Tex, Inc. | Liquid metering and coating device |
| US5779795A (en) * | 1995-08-04 | 1998-07-14 | W. L. Gore & Associates, Inc. | Low surface energy fluid metering and coating device |
| EP0783143A1 (en) * | 1995-12-28 | 1997-07-09 | Nitto Kogyo Co., Ltd. | Oil application roll for electrophotograph fixation and method of fabricating the same |
| JP2021070010A (en) * | 2019-11-03 | 2021-05-06 | 日本ルブ・システム株式会社 | Release agent applying roller |
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