JPS6021078A - Device for applying releasing agent for copying machine - Google Patents
Device for applying releasing agent for copying machineInfo
- Publication number
- JPS6021078A JPS6021078A JP12998983A JP12998983A JPS6021078A JP S6021078 A JPS6021078 A JP S6021078A JP 12998983 A JP12998983 A JP 12998983A JP 12998983 A JP12998983 A JP 12998983A JP S6021078 A JPS6021078 A JP S6021078A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- release agent
- porous
- mold release
- width
- 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
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】
（技術分野）
本発明はプレインペーパコピ（Ｐｌａｉｎ Ｐａｐｅｒ
Ｃｏｐｙ）（ｐ ｐｃ ）複写機の定着ロールにシリ
コンオイル等の離型剤を塗布する装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to plain paper copying.
Copy) (p pc ) This relates to a device for applying a release agent such as silicone oil to the fixing roll of a copying machine.
（先行技術とその問題点）
ＰＰＣ複写機における定着機構としては、基本的には紙
面に転写されたトナーを加熱定着ロールとゴムロール等
の弾性のある加圧ロールの間を通過させ温度をかけなが
ら圧着し焼き付けることにある。このような機構におい
て、加熱された定着ロールと弾性のある加圧ロールとの
間をトナーの付着した紙面が通過すると紙自体がロール
に付着してロールに巻きつき完全な焼付けが出来ないと
か、コピ紙に転写されたトナーが定着ロールに付着し画
浄が二重写しになる（所謂オフセット現１象）とか、設
備の故障とかいった問題が発生する。従って従来よりこ
の点について種々検討されているが最終的には定着ロー
ル及び弾性ロールに離型のための離型剤を塗布する方法
がとられている。(Prior art and its problems) Basically, the fixing mechanism in a PPC copying machine passes the toner transferred onto the paper between a heated fixing roll and an elastic pressure roll such as a rubber roll while applying heat. It consists in crimping and baking. In such a mechanism, when a paper surface with toner attached passes between a heated fixing roll and an elastic pressure roll, the paper itself adheres to the roll and wraps around the roll, preventing complete printing. Problems occur such as the toner transferred to the copy paper adheres to the fixing roll, resulting in double copies of the image (so-called offset phenomenon), and equipment failure. Therefore, various studies have been made in the past regarding this point, but the final method has been to apply a release agent to the fixing roll and the elastic roll for mold release.
しかしながらこの離型剤をロールに均一にかつ適量塗布
する方法は非常に難かしく、離型剤が多すぎると紙面に
しみがついたり紙面が変色したりし、同時に離型剤の消
費がはげしくたえず注油したりする手間がかかるし、多
すぎた離型剤がロール表面で固化したりし、思わ壽故障
の原因になったりする。又離型剤が少なすぎると当然の
ことながら前記のオフセット現象が発生したり、ロール
表面の離型性が悪くなり紙がロールに巻付く原因となる
。ちなみに離型剤としては主としてシリコンオイル等の
耐熱オイルが使用される。However, it is very difficult to apply this mold release agent evenly and in the right amount to the roll, and if too much mold release agent is used, the paper surface becomes stained or discolored, and at the same time, the mold release agent is consumed rapidly. It takes time and effort to lubricate the roll, and too much mold release agent can solidify on the roll surface, causing mold failure. Furthermore, if the amount of release agent is too small, the above-mentioned offset phenomenon may naturally occur, or the release properties of the roll surface may deteriorate, causing the paper to wrap around the roll. Incidentally, heat-resistant oil such as silicone oil is mainly used as a mold release agent.
このため従来離型剤の塗布装置として、種々の構造のも
のが開発提案されているが、必ずしも充分なものではな
い。For this reason, conventional release agent applicators with various structures have been developed and proposed, but these are not necessarily sufficient.
そこで本特許出願人は離型剤の塗布装置として離型剤の
塗布状態が均一で離型剤の消費も必要最小量で経済的で
しかも非常に狭いスペースの所でも装置の取りつけが可
能であり、しかも形状も単純でコストも非常に安価であ
る次の如きものを先に開発した。Therefore, the applicant of this patent has developed a mold release agent applicator that is economical, ensures uniform application of mold release agent, consumes the minimum amount of mold release agent, and can be installed even in extremely narrow spaces. , the following was developed first, which was simple in shape and very low in cost.
即ち第１．２図に示す如く定着ロール（１４）と加圧ロ
ール（１５）の間を通してトナー（１９）像をコピ紙（
１６）に加熱定着する定着装置に於いて定着ロール（１
４）に両端を例えば加熱圧着して或いは栓をしてシール
した四弗化エチレン樹脂多孔質チューブ（７）をロール
の母線方向に当接させ、四弗化エチレン樹脂多孔質チュ
ーブにて離型剤（６）を塗布するようにしたことを特徴
とするものである。That is, as shown in Fig. 1.2, the toner (19) image is passed between the fixing roll (14) and the pressure roll (15) and onto the copy paper (
In the fixing device that heats and fixes onto the fixing roller (16),
4) A porous tetrafluoroethylene resin tube (7) whose both ends are heat-pressed or sealed with a plug is brought into contact with the generatrix direction of the roll, and the mold is released using the porous tetrafluoroethylene resin tube. It is characterized in that the agent (6) is applied.
上記に於いて多孔質チューブ（７）はやわらかいので支
持体（１）（第１図）又は（４）（第２図）にて支持す
る。又多孔質チューブは離型剤の浸出部である多孔の必
要開孔部以外を弗素ゴム又は他の材料にて多孔を例えば
塗布等してふさいでいる。これは離型剤の吐出量を所定
量にしかも均一にするためである。なお第１．２図中（
２）は四弗化エチレン樹脂多孔質チューブの閉孔部、（
３）は四弗化エチレン樹脂多孔質チューブの開孔部、（
５）は注入凸である。In the above, since the porous tube (7) is soft, it is supported by the support (1) (FIG. 1) or (4) (FIG. 2). Further, in the porous tube, the pores other than the necessary openings from which the release agent permeates are covered with fluororubber or other material, for example, by coating. This is to make the discharge amount of the mold release agent a predetermined amount and uniform. In addition, in Figure 1.2 (
2) is the closed pore part of the polytetrafluoroethylene resin porous tube, (
3) is the opening of the tetrafluoroethylene resin porous tube, (
5) is an injection convex.
又第３図に例示する如く上記チューブに代えシートを用
いる装置をも開発した。We have also developed a device that uses a sheet instead of the tube, as shown in FIG.
しかし乍ら」二重に於いても未だ下記のような問題点が
ある。即ち例えば複写作業中スイッチを入れた捷５複写
を中断しその后再スタート時離型剤の吐出量がふえてい
ることである。これは昇温停止時の離型剤の吐出による
。この離型剤の吐出は離型剤の過塗布となり冒頭記載の
諸問題を生じる。However, there are still problems with double-duplexing as described below. That is, for example, when the switch 5 is turned on during copying operation, copying is interrupted and then restarted, the amount of release agent discharged increases. This is due to the release agent being discharged when the temperature rise is stopped. This discharge of the mold release agent results in overcoating of the mold release agent, causing the problems described at the beginning.
（発明の構成）
上記に鑑み本発明はこのような問題点を解決するため即
ち昇温停止時の離型剤の吐出を抑えるため開発されたも
のである。(Structure of the Invention) In view of the above, the present invention was developed in order to solve such problems, that is, to suppress discharge of the mold release agent when the temperature rise is stopped.
即ち本発明の複写機の離型剤塗布装置は、定着ロールと
加圧ロールの間を通してコピ紙にトナー像を加熱定着す
る定着装置に於いて定着ロールに四弗化エチレン樹脂多
孔質シート又はチューブを当接させ、四弗化エチレン樹
脂多孔質シート又はチューブにて離型剤を塗布するよう
にしたものであって、」−型口弗化エチレン樹脂多孔質
シート又はチューブを離型剤を通す必要のある面以外の
面のあなを閉じ多孔質の閉領域と開領域を形成し且つこ
の開領域の幅を上記多孔質シート又はチューブの定着ロ
ールとの接触面幅よりも狭くしたことを特徴とするもの
である。That is, the release agent application device for a copying machine of the present invention includes a fixing device that heats and fixes a toner image on copy paper through a fixing roll and a pressure roll, and a polytetrafluoroethylene resin porous sheet or tube is attached to the fixing roll. A mold release agent is applied through a porous sheet or tube of polytetrafluoroethylene resin in contact with the mold, and a mold release agent is passed through the porous sheet or tube of polyfluoroethylene resin at the mouth of the mold. A feature of the present invention is that the holes on the surfaces other than the necessary surfaces are closed to form a porous closed region and an open region, and the width of the open region is narrower than the width of the contact surface of the porous sheet or tube with the fixing roll. That is.
以下例示図面に就いて本発明の詳細な説明する。The present invention will be described in detail below with reference to the illustrative drawings.
第４図は第３図に対応する（本発明は第１．２図の場合
も適用可能）本発明の離型剤塗布装置を例示し、（１）
は四弗化エチレン樹脂多孔質シートを示し、これは液状
潤滑剤を含む四弗化エチレン樹脂混和物をシート状にカ
レンダー圧延後、延伸、更に焼結によって得られる特公
昭４２−１３５６０号、特願昭５０−１５５２２／）号
に開示の孔径が均一にコントロールされた微細孔、好捷
しくは０．１〜’ＩＯｐｍまでの孔径を有し、その多孔
度が５０〜８５％の構造を有した四弗化エチレン樹脂多
孔質シート（例えば住人電工製ボアフロン）である。FIG. 4 corresponds to FIG. 3 (the present invention can also be applied to the cases of FIGS. 1 and 2), and illustrates the release agent coating device of the present invention, (1)
indicates a porous sheet of tetrafluoroethylene resin, which is obtained by calender rolling a tetrafluoroethylene resin mixture containing a liquid lubricant into a sheet shape, stretching, and further sintering. The structure disclosed in Japanese Patent No. 50-15522/) has micropores with a uniformly controlled pore size, preferably a pore size of 0.1 to 'IOpm, and a porosity of 50 to 85%. It is a polytetrafluoroethylene resin porous sheet (for example, Boa-Fron manufactured by Sumitomo Electric).
これに離型剤（６）の浸出部である必要開孔部以外をＦ
ＥＰ又は他の材料（２のにて孔をふさぎシート開孔部が
定着ロール（１４）に接触するようにタンク−） （７
’）からの離型剤（６）の吐出を抑えるためシー１−
（７’）の開孔部の幅（Ｗ）を多孔質シート（７つの定
着ロール（１４）との接触面幅（Ｃ）よりも狭くしであ
る。F
EP or other material (fill the tank so that the hole in the sheet is in contact with the fixing roll (14)) (7)
') to suppress the discharge of the mold release agent (6) from the sea 1-
The width (W) of the opening of the porous sheet (7') is made narrower than the width (C) of the contact surface with the seven fixing rolls (14).
上記本発明の理解を助けるため第４図を引用して以下に
実験例を述べる。In order to aid understanding of the present invention, an experimental example will be described below with reference to FIG.
開孔部幅（Ｗ）を３〜５ｍｍ、接触面幅（Ｃ）を５〜６
馴とした。多孔質シート（７′）には前記したボアフロ
ンを用いた。上記実験によれば昇温停止時の離型剤の吐
出を充分抑えることが出来た。The opening width (W) is 3 to 5 mm, and the contact surface width (C) is 5 to 6.
Familiar. The porous sheet (7') was made of Boa-Fron as described above. According to the above experiment, it was possible to sufficiently suppress discharge of the mold release agent when the temperature rise was stopped.
なお本発明の多孔質シート又はチューブのタンク又は支
持体の形状等は図示のものに限定されるものでは決して
ない。Note that the shape of the tank or support of the porous sheet or tube of the present invention is by no means limited to that shown in the drawings.
（発明の効果）
以上本発明を説明したが、それは昇温停止時の多孔質シ
ート又はチューブからの離型剤の吐出をよく抑える。た
めに停止解除再スタート時離型剤が多く塗布されること
がない。従って紙面にしみかついたり、紙面が変色した
りすることがない。(Effects of the Invention) The present invention has been described above, and it effectively suppresses discharge of the mold release agent from the porous sheet or tube when the temperature rise is stopped. Therefore, a large amount of mold release agent is not applied when restarting after stopping. Therefore, it will not soak into the paper surface or discolor the paper surface.
又離型剤の消費をおさえ、浪費や注油或いは取かえ等の
手間を少くする。又多過ぎた離型剤のロール表面での固
化等の問題も著しく少くする。Furthermore, the consumption of mold release agent is suppressed, and the wastage and labor of lubricating, replacing, etc. is reduced. Also, problems such as solidification of too much mold release agent on the roll surface are significantly reduced.
第１．２．３図は共に本発明者が先に開発した離型剤塗
布装置の説明図を例示し、第１図は正面図（図（ａ））
と横断面図（図（ｂ））、第２図は正面図、第３図は横
断面図である。第４図は本発明の離型剤塗布装置の説明
図を例示した側面図である。
（１）・・・支持体、
（２）・・・四弗化エチレン樹脂多孔質チューブの閉孔
部、（３）・・・四弗化エチレン樹脂多孔質チューブの
開孔部、（４）・・・支持体、（５）・・・注入口、（
６）・・・離型剤、（７）・・・四弗化エチレン樹脂多
孔質チューブ、（１４）・・・定着ロール（加熱ロール
）、（１５）・・・弾性加圧ロール、（１６）・・・コ
ピ紙（１９） ・・・ ト す − 、
（Ｗ）・・・多孔質チューブの開口部の幅、（Ｃ）・・
・多孔質チューブと定着ロールとの接触面幅、（１′）
・・・離型剤タンク、
（７す・・・四弗化エチレン樹脂多孔質シート、（２０
）・・・ＦＥＰ（シート（１つに積層した閉子り材料）
、（２１）・・・耐熱フエルト
オ １ 図
（ａ）
（ｂ）
オ ２ 図
４
／＋ ４ 図
オ ３ 図
手続補正書
昭和５８ 年 特許 願第１２９９８９号２、発明の名
称 、隷−乎炊り會釦電２Ｊ４：今＜’Ｌ３、 補正を
する者
事件との関係 特許出願人
（ほか１６二
４、代理人
Ｆ 、所（Ｔ ５３３ ） ｊ＝ｋ ｉＵ ”ＪＬ ′
用Ｅ ｄｆ 中＆ Ｉ Ｔ ’ｉＪ ２０＃ １２−５
２４号ユニゾーン新大阪５２４号塞Figures 1, 2, and 3 all illustrate explanatory diagrams of the mold release agent application device developed earlier by the present inventor, and Figure 1 is a front view (Figure (a)).
and a cross-sectional view (Figure (b)), FIG. 2 is a front view, and FIG. 3 is a cross-sectional view. FIG. 4 is a side view illustrating an explanatory view of the mold release agent coating device of the present invention. (1)...Support, (2)...Closed pores of the tetrafluoroethylene resin porous tube, (3)...Open pores of the tetrafluoroethylene resin porous tube, (4) ... Support, (5) ... Inlet, (
6)... Mold release agent, (7)... Tetrafluoroethylene resin porous tube, (14)... Fixing roll (heating roll), (15)... Elastic pressure roll, (16)... )...Copy paper (19)...Tosu -, (W)...Width of the opening of the porous tube, (C)...
・Width of contact surface between porous tube and fixing roll, (1')
... Mold release agent tank, (7) ... Tetrafluoroethylene resin porous sheet, (20
)...FEP (sheet (closed material laminated into one)
, (21)...Heat-resistant felt holder 1 Figure (a) (b) 2 Figure 4 /+ 4 Figure 3 Figure procedure amendment 1981 Patent Application No. 129989 2, Title of invention, Slave Kaibuttonden 2J4: Now<'L3, Relationship with the case of the person making the amendment Patent applicant (etc. 1624, agent F, office (T 533) j=k iU "JL '
For Edf Medium &IT'iJ20# 12-5
No. 24 Unizone Shin-Osaka No. 524
Claims (1)
ナー像を加熱定着する定着装置に於いて定着ロールに四
弗化エチレン樹脂多孔質シート又はチューブを当接させ
、四弗化エチレン樹脂多孔質シート又はチューブにて離
型剤を塗布するようにしたものであって、上記四弗化エ
チレン樹脂多孔質シート又はチューブを離型剤を通す必
要のある面以外の面のあなを閉じ多孔質の閉領域と開領
域を形成し且つこの開領域の幅を上記多孔質シート又は
チューブの定着ロールとの接触面幅よりも狭くしたこと
を特徴とする複写機の離型剤塗布装置。 （２）四弗化エチレン樹脂多孔質シート又はチューブを
タンク又は支持体に取りつけてなる特許請求の範囲第（
１）項記載の複写機の離型剤塗布装置。 （６）四弗化エチレン樹脂多孔質シート又はチューブが
、孔径０．１〜１０μｍ１多孔度５０〜８５チである特
許請求の範囲第（１）項記載の複写機の離型剤塗布装置
。 （４） 四弗化エチレン樹脂多孔質シートの多孔質の閉
領域を形成するためにＦＥＰを積層する特許請求の範囲
第（１）項記載の複写機の離型剤塗布装置。[Scope of Claims] (1) In a fixing device that heats and fixes a toner image on copy paper through a fixing roll and a pressure roll, a porous tetrafluoroethylene resin sheet or tube is brought into contact with the fixing roll, A polytetrafluoroethylene resin porous sheet or tube coated with a mold release agent, other than the surface on which the mold release agent needs to be passed through the polytetrafluoroethylene resin porous sheet or tube. A mold release method for a copying machine, characterized in that the hole is closed to form a porous closed region and an open region, and the width of the open region is narrower than the width of the contact surface of the porous sheet or tube with the fixing roll. Agent applicator. (2) Claim No. 2, which comprises a porous sheet or tube of tetrafluoroethylene resin attached to a tank or support.
1) A release agent coating device for a copying machine as described in item 1). (6) The release agent coating device for a copying machine according to claim (1), wherein the porous sheet or tube of tetrafluoroethylene resin has a pore diameter of 0.1 to 10 μm and a porosity of 50 to 85 μm. (4) A release agent coating device for a copying machine according to claim (1), wherein FEP is laminated to form a porous closed region of a porous tetrafluoroethylene resin sheet.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12998983A JPS6021078A (en) | 1983-07-15 | 1983-07-15 | Device for applying releasing agent for copying machine |
| DE8484107775T DE3481228D1 (en) | 1983-07-15 | 1984-07-04 | DETACHING DEVICE APPLICATION DEVICE FOR COPIER. |
| EP19840107775 EP0131849B1 (en) | 1983-07-15 | 1984-07-04 | Release agent applicator for copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12998983A JPS6021078A (en) | 1983-07-15 | 1983-07-15 | Device for applying releasing agent for copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6021078A true JPS6021078A (en) | 1985-02-02 |
Family
ID=15023397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12998983A Pending JPS6021078A (en) | 1983-07-15 | 1983-07-15 | Device for applying releasing agent for copying machine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0131849B1 (en) |
| JP (1) | JPS6021078A (en) |
| DE (1) | DE3481228D1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359963A (en) * | 1979-04-28 | 1982-11-23 | Canon Kabushiki Kaisha | Fixing device |
| JPS56161570A (en) * | 1980-05-13 | 1981-12-11 | Sumitomo Electric Ind Ltd | Coater for release agent of copying machine |
| DE3116599C2 (en) * | 1981-02-19 | 1983-04-21 | Sumitomo Electric Industries, Ltd., Osaka | Applicator for applying a liquid release agent to the heated fixing roller of a thermal fuser for toner images |
| JPS59214060A (en) * | 1983-05-19 | 1984-12-03 | Sumitomo Electric Ind Ltd | Release agent coating device of copying machine |
-
1983
- 1983-07-15 JP JP12998983A patent/JPS6021078A/en active Pending
-
1984
- 1984-07-04 EP EP19840107775 patent/EP0131849B1/en not_active Expired - Lifetime
- 1984-07-04 DE DE8484107775T patent/DE3481228D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0131849A3 (en) | 1985-11-13 |
| DE3481228D1 (en) | 1990-03-08 |
| EP0131849B1 (en) | 1990-01-31 |
| EP0131849A2 (en) | 1985-01-23 |
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