JPS63113578A - Production of thermal fixing roller - Google Patents
Production of thermal fixing rollerInfo
- Publication number
- JPS63113578A JPS63113578A JP61260164A JP26016486A JPS63113578A JP S63113578 A JPS63113578 A JP S63113578A JP 61260164 A JP61260164 A JP 61260164A JP 26016486 A JP26016486 A JP 26016486A JP S63113578 A JPS63113578 A JP S63113578A
- Authority
- JP
- Japan
- Prior art keywords
- silicone rubber
- rubber layer
- drying
- ptfe
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 30
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 30
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 23
- 239000004945 silicone rubber Substances 0.000 claims abstract description 23
- 239000006185 dispersion Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 230000006866 deterioration Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、電子複写機等の熱定着部に使用さ−れる熱定
着ローラの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a method of manufacturing a heat fixing roller used in a heat fixing section of an electronic copying machine or the like.
（従来の技術）
従来から、電子複写機等の熱定着部に使用される熱定着
ローラとして、シリコーンゴム材料をアルミ等からなる
金属芯軸上にプライマーを介して被覆したものが一般に
用いられている。そしてこのようなローラのトナーとの
離型性を高めるために、シリコーンゴム層の表面にポリ
テトラフルオロエチレン樹脂（以下ＰＴＦＥと称する。(Prior Art) Conventionally, heat fixing rollers used in heat fixing parts of electronic copying machines and the like have generally been made by coating silicone rubber material on a metal core shaft made of aluminum or the like with a primer. There is. In order to improve the releasability of such a roller from the toner, polytetrafluoroethylene resin (hereinafter referred to as PTFE) is applied to the surface of the silicone rubber layer.
）ディスパージョンを塗布し乾燥させてＰＴＦＥ塗膜を
形成した後、このＰＴＦＥ塗膜を焼成させてＰＴＦＥ眉
を設けることが行われている。そしてＰＴＦＥディスパ
ージョン塗布面の乾燥は、その分散剤が水であり、また
基層であるシリコーンゴム層の熱劣化を防ぐ意味から、
１００°Ｃ前後の温度で数分間加熱することにより行な
われている。) A dispersion is applied and dried to form a PTFE coating, and then the PTFE coating is fired to provide PTFE eyebrows. The surface coated with PTFE dispersion is dried because the dispersant is water and to prevent thermal deterioration of the silicone rubber layer, which is the base layer.
This is done by heating at a temperature of around 100°C for several minutes.
（発明が解決しようとする問題点）
しかしたがらこのような乾燥方法では、ＰＴＦＥ塗膜に
亀裂を生じやすいという問題があった。(Problems to be Solved by the Invention) However, such a drying method has a problem in that the PTFE coating film is likely to crack.
すなわち周知のようにＰ ＴＦ Ｈの溶融粘度が非常に
高いために、溶融時の流動性が期待できず、乾燥時に発
生した亀裂は焼成後もそのまま残存し、耐久性や熱定着
性等、ローラの性能を著しく低下させるという問題があ
った。In other words, as is well known, the melt viscosity of PTFH is extremely high, so fluidity during melting cannot be expected, and cracks that occur during drying remain as they are even after firing, resulting in poor roller performance such as durability and heat fixability. There was a problem in that the performance of the system was significantly degraded.
そこで本発明はこのような従来の問題を解決するために
なされたもので、ＰＴＦＥディスパージョンの乾燥に起
因する亀裂の発生およびシリコーンゴム層の熱劣化を防
止して特性の良い熱定着ローラを製造することができる
方法を提供することを目的とする。Therefore, the present invention was made to solve these conventional problems, and it is possible to manufacture a heat fixing roller with good characteristics by preventing cracks caused by drying of the PTFE dispersion and thermal deterioration of the silicone rubber layer. The purpose is to provide a method that can be used.
［発明の構成］
（問題点を解決するための手段）
本発明は、ローラ芯軸上にシリコーンゴム層を形成し、
このシリコーンゴム層上４．：ＰＴＦＥディスパージョ
ンを塗布し、乾燥させてＰＴＦＥ塗、膜を形成した後、
このＰＴＦＥ塗、嗅を焼成して熱定着ローラを製造する
方法において、ＰＴＦＥディスパージョンを塗布した後
この塗布面を５００℃以上の温度で１０〜１２０秒間で
加熱乾燥させ、しがる後焼成を行なうことを特徴として
いる。[Structure of the invention] (Means for solving the problems) The present invention forms a silicone rubber layer on the roller core shaft,
4. On this silicone rubber layer. : After applying PTFE dispersion and drying it to form a PTFE coating,
In this method of manufacturing a heat fixing roller by coating and baking PTFE, after coating the PTFE dispersion, the coated surface is dried by heating at a temperature of 500°C or higher for 10 to 120 seconds, followed by post-baking. It is characterized by doing.
本発明において、ＰＴＦＥディスパージョン塗布面の乾
燥温度は５００℃以上とするが、より好ましくは５００
〜８００℃の範囲である。これは５００°Ｃ未満では亀
裂が発生しやすくなり、逆に８００ ’Ｃをこえるとシ
リコーンゴム層が熱劣化するおそれがあるからである。In the present invention, the drying temperature of the PTFE dispersion coated surface is 500°C or higher, more preferably 500°C or higher.
It is in the range of ~800°C. This is because if the temperature is less than 500°C, cracks are likely to occur, whereas if the temperature exceeds 800'C, the silicone rubber layer may be thermally degraded.
この乾燥は、上記温度範囲の加熱雰囲気中にローラを保
持するだけでも行うことができるが、さらに加熱効果を
高めるために、ローラ芯軸内に加熱体を内挿させる方法
、およびローラを回転させつつその表面に風速０．５〜
２．５ １／ｓ程度の熱風を吹付ける方法を併用するこ
とが好ましい６なお本発明に使用されるＰＴＦＥディス
パージョンとしては、たとえば八〇−６３９（旭硝子社
製商品名）があり、このようなＰＴＦＥディスパージョ
ンの塗布には吹付は法、浸漬法等の公知の方法を用いる
ことができる。This drying can be performed simply by holding the roller in a heated atmosphere within the above temperature range, but in order to further enhance the heating effect, there are methods in which a heating element is inserted into the roller core shaft, and a method in which the roller is rotated. Wind speed 0.5~ on the surface
2.5 It is preferable to use a method of blowing hot air at a rate of about 1/s.6 Examples of the PTFE dispersion used in the present invention include 80-639 (trade name manufactured by Asahi Glass Co., Ltd.); A known method such as a spraying method or a dipping method can be used to apply the PTFE dispersion.
（作 用）
本発明においては、５００℃以上の高温で、がつ１０〜
１２０％間という短時間の条件で加熱乾燥させることに
より、ＰＴＦＥ塗膜の亀裂の発生が防止されるとともに
シリコーンゴム層の熱劣化も防止される。(Function) In the present invention, at a high temperature of 500°C or higher,
By heating and drying for a short time of 120%, cracking of the PTFE coating film is prevented, and thermal deterioration of the silicone rubber layer is also prevented.
（実施例） 以下、本発明の実施例を図面を用いて説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
図面は本発明の特徴部分をなすＰＴＦＥディスパージョ
ン塗布面の乾燥工程を示す図である。The drawings are diagrams showing the drying process of the PTFE dispersion coated surface, which is a feature of the present invention.
この実施例においては、まず金属芯軸上にプライマーを
介して常法によりシリコーンゴム層が形晟されたシリコ
ーンゴムローラ（外径６０ｎｎ＋、ローラ長３２０＋ｎ
ｌ、軸厚１２Ｉｎ）の表面にＰＴＦＥディスパージョン
としてＡＤ−６３９を塗布した。In this example, first, a silicone rubber roller (outer diameter 60 nn+, roller length 320 nn+
AD-639 was coated as a PTFE dispersion on the surface of a 12 In.
次いで図面に示すように、このシリコーンゴムローラ１
の芯社内に５４０°Ｃに加熱された加熱棒２を内挿させ
るとともに、これを６００°Ｃの加熱室３内に収容し、
塗布面の乾燥を行った。Next, as shown in the drawing, this silicone rubber roller 1
A heating rod 2 heated to 540°C is inserted inside the core, and this is housed in a heating chamber 3 at 600°C.
The coated surface was dried.
加熱室３内では、シリコーンゴムローラ１を、回転駆動
モータ４により３ ｒｐｌ程度で回転させ、上方より表
面に風速Ｉｎ／ｓ程度の熱風を吹付けた。In the heating chamber 3, the silicone rubber roller 1 was rotated by a rotary drive motor 4 at a speed of about 3 rpm, and hot air at a speed of about In/s was blown onto the surface from above.
この状態を３０秒間継続させた後、加熱室３からローラ
１を取出し、次いでＰＴＦＥ塗膜の焼成を行この状態を
３０秒間継続させた後、加熱室３からローラ１を取出し
、次いでＰＴＦＥ塗膜の焼成な行なった。After continuing this state for 30 seconds, the roller 1 is taken out from the heating chamber 3, and then the PTFE coating is fired.After this state is continued for 30 seconds, the roller 1 is taken out from the heating chamber 3, and then the PTFE coating is fired. I did some baking.
このようにして得られた熱定着ローラは、亀裂のない平
滑な表面を有しており、またシリコーンゴム層の劣イヒ
も認められなかった。The heat fixing roller thus obtained had a smooth surface without cracks, and no deterioration of the silicone rubber layer was observed.
次表は、本発明の乾燥条件、すなわち加熱温度および加
熱時間を変えてＰＴＦＥ塗模の部製の発生状況およびシ
リコーンゴム層の熱劣化の有無？調べた結果をまとめた
ものである。表中×は表面全体にわたって亀裂が認めら
れたもの、△は部分的な亀裂の発生が認められたもの、
Ｏは亀裂の発生が全く認められなかったものである。ま
た※で示したものは、シリコーンゴム層に熱劣化が認め
られたものである。The following table shows the occurrence of PTFE coating and the presence or absence of thermal deterioration of the silicone rubber layer by changing the drying conditions of the present invention, that is, the heating temperature and heating time. This is a summary of the research results. In the table, × indicates that cracks were observed over the entire surface, △ indicates that cracks were partially observed,
0 indicates that no cracks were observed at all. In addition, those marked with * are those in which thermal deterioration was observed in the silicone rubber layer.
なおシリコーンゴムローラおよびＰＴＦＥディスパージ
ョンには上記実施例と同じものを使用した。Note that the silicone rubber roller and PTFE dispersion used were the same as in the above example.
（以下余白）
なお本発明は、熱容量の大きい軸厚の厚いローラや外径
の大きなローラに適用した場合に、その効果が特に顕著
である。(Hereinafter, blank spaces) The present invention is particularly effective when applied to a roller with a large shaft thickness and a large outer diameter, which has a large heat capacity.
［発明の効果コ
以ト説明したように本発明の熱定着ローラの製造方法に
よれば、Ｐ Ｔ” Ｆ Ｅディスパージョンの乾燥に起
因する亀裂の発生およびシリコーンゴム層の熱劣化を防
止することができるので、耐久性や定着性に優れた高性
能、高品質の熱定着ローラを得ることができる。[Effects of the Invention] As explained below, according to the method of manufacturing a heat fixing roller of the present invention, it is possible to prevent the occurrence of cracks due to drying of the P T"FE dispersion and the thermal deterioration of the silicone rubber layer. As a result, a high-performance, high-quality heat fixing roller with excellent durability and fixing properties can be obtained.
図面は本発明の一実施例のＰＴＦＥディスパージョン乾
燥工程を示す図である。
１・・・・・・・・・シリコーンゴムローラ２・・・・
・・・・・加熱棒
３・・・・・・・・・加熱室The drawings are diagrams showing a PTFE dispersion drying process according to an embodiment of the present invention. 1...Silicone rubber roller 2...
... Heating rod 3 ... Heating chamber
Claims (1)
ーンゴム層上にポリテトラフルオロエチレン樹脂ディス
パージョンを塗布し、乾燥させてポリテトラフルオロエ
チレン樹脂塗膜を形成した後、このポリテトラフルオロ
エチレン樹脂塗膜を焼成して熱定着ローラを製造する方
法において、前記ポリテトラフルオラエチレン樹脂ディ
スパージョンを塗布した後この塗布面を５００℃以上の
温度で１０〜１２０秒間加熱乾燥させ、しかる後焼成を
行なうことを特徴とする熱定着ローラの製造方法。A silicone rubber layer is formed on the roller core shaft, a polytetrafluoroethylene resin dispersion is applied on the silicone rubber layer, and a polytetrafluoroethylene resin coating is formed by drying. In the method of manufacturing a heat fixing roller by baking a coating film, after applying the polytetrafluoroethylene resin dispersion, the coated surface is dried by heating at a temperature of 500° C. or higher for 10 to 120 seconds, and then baking is performed. A method of manufacturing a heat fixing roller, comprising:
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR860012125A KR880005492A (en) | 1986-10-30 | 1986-10-30 | Manufacturing method of heat fixing roller |
| JP61260164A JPH0827573B2 (en) | 1986-10-31 | 1986-10-31 | Method of manufacturing heat fixing roller |
| US07/110,736 US4789565A (en) | 1986-10-30 | 1987-10-21 | Method for the production of a thermal fixing roller |
| CA000549930A CA1271672A (en) | 1986-10-30 | 1987-10-22 | Method for the production of thermal fixing roller |
| DE198787309501T DE269262T1 (en) | 1986-10-30 | 1987-10-28 | METHOD FOR PRODUCING A ROLE FOR HEAT FIXING. |
| EP87309501A EP0269262B1 (en) | 1986-10-30 | 1987-10-28 | Method for the production of thermal fixing roller |
| DE8787309501T DE3769606D1 (en) | 1986-10-30 | 1987-10-28 | METHOD FOR PRODUCING A ROLE FOR HEAT FIXING. |
| KR1019870012125A KR910004681B1 (en) | 1986-10-30 | 1987-10-30 | Method for the production of a thermal fixing roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61260164A JPH0827573B2 (en) | 1986-10-31 | 1986-10-31 | Method of manufacturing heat fixing roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63113578A true JPS63113578A (en) | 1988-05-18 |
| JPH0827573B2 JPH0827573B2 (en) | 1996-03-21 |
Family
ID=17344209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61260164A Expired - Lifetime JPH0827573B2 (en) | 1986-10-30 | 1986-10-31 | Method of manufacturing heat fixing roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0827573B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002136914A (en) * | 2000-11-02 | 2002-05-14 | Bridgestone Corp | Method for manufacturing oa roller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5939372A (en) * | 1982-08-30 | 1984-03-03 | Nikken Toso Kogyo Kk | Formation of resin film on metal roll |
| JPS61124974A (en) * | 1984-11-21 | 1986-06-12 | Minolta Camera Co Ltd | Manufacture of heat fixing roller |
-
1986
- 1986-10-31 JP JP61260164A patent/JPH0827573B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5939372A (en) * | 1982-08-30 | 1984-03-03 | Nikken Toso Kogyo Kk | Formation of resin film on metal roll |
| JPS61124974A (en) * | 1984-11-21 | 1986-06-12 | Minolta Camera Co Ltd | Manufacture of heat fixing roller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002136914A (en) * | 2000-11-02 | 2002-05-14 | Bridgestone Corp | Method for manufacturing oa roller |
| JP4568419B2 (en) * | 2000-11-02 | 2010-10-27 | 株式会社ブリヂストン | OA roller manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0827573B2 (en) | 1996-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4789565A (en) | Method for the production of a thermal fixing roller | |
| JPS63113578A (en) | Production of thermal fixing roller | |
| JP2685437B2 (en) | Manufacturing method of heat fixing roller | |
| JP3062719B2 (en) | Baking furnace and baking method for heat-resistant pre-coated metal sheet | |
| JPS6153112B2 (en) | ||
| JPS6334575A (en) | Production of heat fixing roller | |
| JP2802621B2 (en) | Manufacturing method of heat fixing roller | |
| JPS63124076A (en) | Manufacture of heat fixing roller | |
| JPS6327873A (en) | Manufacture of heat fixing roller | |
| JPH01219875A (en) | Production of thermal fixing roller | |
| JPH01980A (en) | Manufacturing method of heat fixing roller | |
| JPS63113579A (en) | Production of thermal fixing roller | |
| JP2652162B2 (en) | Manufacturing method of heat fixing roller | |
| JPS638777A (en) | Production of heat fixing roller | |
| JPS63115187A (en) | Production of heat fixing roller | |
| JPS634286A (en) | Fixing roller and its production | |
| JPH01219877A (en) | Production of thermal fixing roller | |
| JP2519056B2 (en) | Heat fixing roller | |
| JP2700238B2 (en) | Heat fixing roller | |
| JPS62207607A (en) | Heating of skin layer of thermally fixing roller | |
| JPS6183567A (en) | Fixing roller and heat fixing device having fixing roller | |
| JP2646263B2 (en) | Elastic rotating body and method of manufacturing the same | |
| JPH0367287A (en) | Production of roller for electrophotographic copying machine | |
| JP2007169111A5 (en) | ||
| JPS61248731A (en) | Production of fixing roller for fluorine plastic coat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |