JPH0325786B2 - - Google Patents
Info
- Publication number
- JPH0325786B2 JPH0325786B2 JP59158999A JP15899984A JPH0325786B2 JP H0325786 B2 JPH0325786 B2 JP H0325786B2 JP 59158999 A JP59158999 A JP 59158999A JP 15899984 A JP15899984 A JP 15899984A JP H0325786 B2 JPH0325786 B2 JP H0325786B2
- Authority
- JP
- Japan
- Prior art keywords
- fluororesin
- layer
- elastic layer
- silicone rubber
- tube
- 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.)
- Expired - Lifetime
Links
- 239000010410 layer Substances 0.000 claims description 36
- 239000002344 surface layer Substances 0.000 claims description 19
- 229920002379 silicone rubber Polymers 0.000 claims description 18
- 239000004945 silicone rubber Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- -1 perfluoroalkyl perfluorovinyl ether Chemical compound 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- HXVLHRZXXJQUDW-UHFFFAOYSA-N 1,2,3,4,5,6-hexafluoropyrene Chemical compound C1=CC(F)=C2C(F)=C(F)C3=C(F)C(F)=C(F)C4=CC=C1C2=C43 HXVLHRZXXJQUDW-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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
- G03G15/2053—Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating
- G03G15/2057—Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating relating to the chemical composition of the heat element and layers thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
（発明の目的）
この発明は、電子複写機等においてトナーの定
着に使用される定着ローラーに関するもので、ロ
ーラーの弾性層の上に極めて薄いフツ素樹脂表層
を強固に接着形成する手段を提供するのがその目
的である。Detailed Description of the Invention (Objective of the Invention) The present invention relates to a fixing roller used for fixing toner in electronic copying machines, etc., in which an extremely thin fluororesin surface layer is firmly attached to the elastic layer of the roller. Its purpose is to provide a means to form an adhesive.
電子複写機等の定着ローラーの製造において、
ローラーの弾性層の上にフツ素樹脂表層を形成す
る代表的方法が特公昭47−20747号公報によつて
知られている。すなわち、その方法は、心金に固
着形成したシリコーンゴムの弾性層を有するロー
ラー基体における弾性層の周面に、シリコーンゴ
ム系接着剤を塗布する一方、熱収縮性のフツ素樹
脂管の内面をエツチング液の処理によつて粗面化
したうえで、プライマーを塗布し、ついで前記の
ように弾性層上にシリコーンゴム系接着剤を塗布
したローラー基体を前記によつて処理済のフツ素
樹脂管に挿入、外部からの加熱によりフツ素樹脂
管を収縮させるとともにこのフツ素樹脂管を弾性
層に接着するものである。 In manufacturing fixing rollers for electronic copying machines, etc.
A typical method for forming a fluororesin surface layer on the elastic layer of a roller is known from Japanese Patent Publication No. 47-20747. That is, in this method, a silicone rubber adhesive is applied to the circumferential surface of the elastic layer of a roller base having an elastic layer of silicone rubber fixedly formed on a mandrel, while the inner surface of a heat-shrinkable fluororesin tube is coated. After roughening the surface by treating with an etching liquid, a primer is applied, and then a silicone rubber adhesive is applied on the elastic layer as described above. The fluororesin tube is inserted into the elastic layer, the fluororesin tube is contracted by external heating, and the fluororesin tube is bonded to the elastic layer.
ところが、この公知方法によれば、前記したシ
リコーンゴム系接着剤が高粘度であるため、フツ
素樹脂管の外部からの加熱によつても前記接着剤
による接着層の厚みが均等化せず、そのため、定
着ローラーの表層形成用フツ素樹脂管がたとえば
100μ以上の厚みをもつていないと、加熱により
フツ素樹脂表層が形成された後、ローラーの周面
にひずみが発生し、ローラー径の精度が著しく低
下する。この精度不良化の対策として肉厚のフツ
素樹脂管を使用し、そのため肉厚のフツ素樹脂表
層が形成されれば、定着ローラーとして使用する
際において、シリコーンゴムの弾性層の柔軟性が
犠牲になり、ローラーの硬度の高い、低価値の定
着ローラーしか得られないのである。 However, according to this known method, since the silicone rubber adhesive has a high viscosity, the thickness of the adhesive layer made of the adhesive does not become uniform even when the fluororesin tube is heated from the outside. Therefore, for example, the fluororesin tube for forming the surface layer of the fixing roller is
If the thickness is not 100μ or more, distortion will occur on the circumferential surface of the roller after the fluororesin surface layer is formed by heating, and the accuracy of the roller diameter will drop significantly. As a countermeasure for this poor accuracy, a thick fluororesin tube is used, and if a thick fluororesin surface layer is formed, the flexibility of the silicone rubber elastic layer is sacrificed when used as a fixing roller. Therefore, only low-value fixing rollers with high roller hardness can be obtained.
この発明者らは、このような既知技術の限界を
越え、30μ、50μなど100μ未満の厚みのフツ素樹
脂表層を柔軟なシリコーンゴム弾性層の上に確実
に形成する手段を開発したものである。 The inventors have overcome the limitations of such known technology and have developed a means to reliably form a fluororesin surface layer with a thickness of less than 100μ, such as 30μ or 50μ, on a flexible silicone rubber elastic layer. .
（発明の構成）
以下、この発明方法を用いて製造した定着ロー
ラーの一例を示した図面によりこの発明を説明す
れば、１は心金でシリコーンゴムの弾性層２が心
金１に成型固着され、ローラー基体を構成してい
る。別途、フツ素樹脂管を用意し、このフツ素樹
脂管に前記ローラー基体を挿入して外部から加熱
処理するのであるが、その際つぎのようなポリマ
ー液の乾燥層を弾性層２とフツ素樹脂管との間に
介在させる必要がある。このポリマー液はシリコ
ーンゴムまたはフツ素ゴムと、テトラフルオロエ
チレンとパーフルオロアルキルパーフルオロビニ
ルエーテルの共重合体（PFA）、ポリテトラフル
オロエチレン（PTFE）、テトラフルオロエチレ
ンとヘキサフルオロピレンの共重合体（FEP）
などのフツ素樹脂とからなる組成物で、シリコー
ンゴムまたはフツ素ゴムとフツ素樹脂との組成割
合は95：５ないし50：50である。(Structure of the Invention) The present invention will be explained below with reference to a drawing showing an example of a fixing roller manufactured using the method of the present invention. Reference numeral 1 denotes a mandrel, and an elastic layer 2 of silicone rubber is molded and fixed to the mandrel 1. , which constitutes the roller base. Separately, a fluororesin tube is prepared, and the roller base is inserted into this fluororesin tube and heat-treated from the outside. It is necessary to interpose it between the resin pipe and the resin pipe. This polymer liquid consists of silicone rubber or fluorine rubber, copolymer of tetrafluoroethylene and perfluoroalkyl perfluorovinyl ether (PFA), polytetrafluoroethylene (PTFE), copolymer of tetrafluoroethylene and hexafluoropyrene ( FEP)
In the composition, the composition ratio of silicone rubber or fluorocarbon rubber and fluorocarbon resin is 95:5 to 50:50.
以上、この発明方法の要旨を述べたが、一実施
例をあげれば、心金１は鋳鉄製で直径30mm、長さ
300mm、肉厚１mmで、この心金１にまず肉厚0.5mm
のシリコーンゴム（東レシリコーン製DY32−
376）が成型固着され、このシリコーンゴム層が
弾性層２となり、この心金１と弾性層２とでロー
ラー基体が構成されている。つぎに、前記に規定
したポリマー液として、フツ素樹脂含有フツ素ゴ
ムラテツクス（ダイキン工業製ダイエルGLS−
213）をとり、これを前記ローラー基体の表面、
すなわち弾性層２の表層に約30μの厚みに塗布し
て乾燥する。このポリマー液は弾性層２の表層に
塗布するかわりに下記のフツ素樹脂管の内面に塗
布して乾燥してもよい。ついで、フツ素樹脂管と
して厚さ30μのPFA樹脂チユーブ（グンゼ(株)）に
前記塗布処理ずみのローラー基体を挿入し、300
℃で20分間加熱した。完成したローラーの断面は
第１図に示す通りで、フツ素樹脂の表層４と弾性
層２の間には前記ポリマー液乾燥膜の変性による
接着層３が形成されている。 The gist of the method of this invention has been described above, but in one embodiment, the core metal 1 is made of cast iron, has a diameter of 30 mm, and a length of 30 mm.
300mm, wall thickness 1mm, first add a wall thickness of 0.5mm to this core metal 1.
silicone rubber (Toray Silicone DY32−
376) is molded and fixed, this silicone rubber layer becomes the elastic layer 2, and the core metal 1 and the elastic layer 2 constitute a roller base. Next, as the polymer liquid specified above, fluororubber latex containing fluororesin (Daiel GLS-
213) and apply it to the surface of the roller base,
That is, it is applied to the surface layer of the elastic layer 2 to a thickness of about 30 μm and dried. Instead of applying this polymer liquid to the surface layer of the elastic layer 2, it may be applied to the inner surface of the fluororesin tube described below and dried. Next, the coated roller base was inserted into a PFA resin tube (Gunze Co., Ltd.) with a thickness of 30μ as a fluororesin tube.
Heat at ℃ for 20 minutes. The cross section of the completed roller is as shown in FIG. 1, and an adhesive layer 3 is formed between the fluororesin surface layer 4 and the elastic layer 2 by modifying the dried polymer liquid film.
この発明方法は前記のようにしてなり、前述の
ようなポリマー液の乾燥層を弾性層２とフツ素樹
脂管との間に介在させて加熱処理を行うのである
が、前記ポリマー液はシリコーンゴム系接着剤と
較べてはるかに粘度が低いため、その塗布乾燥に
より実質的に厚みの均一な層が形成され、従つ
て、薄肉のフツ素樹脂管を用いても、フツ素樹脂
表層が形成された製品の外径は各部においてほと
んど均等である。すなわち、前記実施例によるサ
ンプル100本をとり、各サンプルについては軸長
を100等分し、端末を含む101個の分割点につき測
定したところ、定着ローラーの外径のバラツキは
いずれも0.01〜0.02mmであつた。 The method of this invention is carried out as described above, and heat treatment is performed by interposing a dry layer of the polymer liquid as described above between the elastic layer 2 and the fluororesin tube, and the polymer liquid is made of silicone rubber. Because it has a much lower viscosity than other adhesives, it forms a layer with a substantially uniform thickness when it is applied and dries. Therefore, even when using thin-walled fluororesin pipes, a fluororesin surface layer is formed. The outer diameter of the product is almost uniform in each part. That is, when 100 samples according to the above embodiment were taken, the axial length of each sample was divided into 100 equal parts, and measurements were taken at 101 division points including the terminal, the variation in the outer diameter of the fixing roller was 0.01 to 0.02. It was warm in mm.
さらに、シリコーンゴムの弾性層２に対するフ
ツ素樹脂の表層４の接着性を引つ張り試験機によ
つて検査したところ、弾性層２とフツ素樹脂の表
層４間のハク離は全く認められず、かえつて弾性
層２を形成するシリコーンゴムが破壊されたの
で、接着はきわめて強固であることがわかつた。 Furthermore, when the adhesion of the fluororesin surface layer 4 to the silicone rubber elastic layer 2 was tested using a tensile tester, no peeling was observed between the elastic layer 2 and the fluororesin surface layer 4. However, since the silicone rubber forming the elastic layer 2 was destroyed, it was found that the adhesion was extremely strong.
このように強固な接着性が発揮される原因は、
およそつぎのようなものであると考えられる。す
なわち、フツ素樹脂を含む組成物において、フツ
素樹脂は特に表層エネルギーを小さくする性質が
あるため、外部からの加熱により加硫しはじめた
前記ポリマー液乾燥層内のフツ素樹脂の粒子が第
２図のように表面に集まりだし、溶融結合して層
を形成し、同じく加熱により軟化しているフツ素
樹脂管とその層との親和力が高まつてフツ素樹脂
管と融着する。そして一方、前記したポリマー液
の乾燥層内のシリコーンゴムないしフツ素ゴム
は、加熱加硫とともに弾性層２に融合し、かくし
てフツ素樹脂の表層４と弾性層２とは接着層３に
より強固に結合するのである。 The reason for this strong adhesion is
It is thought to be approximately as follows. That is, in a composition containing a fluororesin, since the fluororesin has the property of particularly reducing surface layer energy, the particles of the fluororesin in the polymer liquid drying layer that have begun to be vulcanized by external heating are As shown in Figure 2, they begin to gather on the surface, melt and bond to form a layer, and the affinity between the layer and the fluororesin tube, which has also been softened by heating, increases and fuses with the fluororesin tube. On the other hand, the silicone rubber or fluorocarbon rubber in the dry layer of the polymer liquid is fused to the elastic layer 2 by heating and vulcanization, and thus the surface layer 4 of the fluorocarbon resin and the elastic layer 2 are firmly bonded by the adhesive layer 3. They combine.
（発明の効果）
かくして、この発明によれば、前記したよう
に、シリコーンゴムからなる弾性層の上に数十ミ
クロンなど100μ未満のきわめて薄いフツ素樹脂
の表層が形成され、しかも寸法精度のきわめて高
い定着ローラーが提供されるのみならず、それら
の弾性層と表層との接着はきわめて強固であり、
したがつて非常に優秀な定着ローラーの提供が可
能であるのみならず、前記した既知技術では必須
であつたフツ素樹脂管の内面荒らし処理も不要な
ので、生産コストも著しく低いなど、この発明は
電子複写機等の性能、ならびに生産性の向上に著
しく寄与するものである。(Effects of the Invention) Thus, according to the present invention, as described above, an extremely thin surface layer of fluororesin with a thickness of several tens of microns or less than 100 μm is formed on the elastic layer made of silicone rubber, and the dimensional accuracy is extremely high. Not only are high fusing rollers provided, but the adhesion between their elastic layer and surface layer is extremely strong;
Therefore, the present invention not only makes it possible to provide an extremely excellent fixing roller, but also eliminates the need for roughening the inner surface of the fluororesin tube, which was essential in the known technology described above, resulting in extremely low production costs. This significantly contributes to improving the performance and productivity of electronic copying machines and the like.
第１図はこの発明方法により生産された定着ロ
ーラーの軸直断面図、第２図は定着ローラーの軸
断面の部分拡大図である。
１は心金、２は弾性層、３は接着層、４は表
層、５は集合したフツ素樹脂粒子を示す。
FIG. 1 is an axial cross-sectional view of a fixing roller produced by the method of the present invention, and FIG. 2 is a partially enlarged view of the axial cross-section of the fixing roller. 1 is a core metal, 2 is an elastic layer, 3 is an adhesive layer, 4 is a surface layer, and 5 is an aggregated fluororesin particle.
Claims (1)
層２を有するローラー基体をフツ素樹脂管に挿入
し、外部から加熱して前記フツ素樹脂管を収縮さ
せるとともに弾性層２の周面に接着させることに
より、弾性層２上にフツ素樹脂表層４を形成する
方法において、シリコーンゴムまたはフツ素ゴム
とフツ素樹脂からなる組成物でその組成割合が
95：５ないし50：50であるポリマー液の乾燥層を
弾性層２と前記フツ素樹脂管との間に介在させ、
前記加熱処理を行うことを特徴とする電子複写機
等用定着ローラーのフツ素樹脂表層形成方法。1. A roller base having an elastic layer 2 of silicone rubber molded and fixed to a core 1 is inserted into a fluororesin tube, heated from the outside to shrink the fluororesin tube and adhere to the circumferential surface of the elastic layer 2. Therefore, in the method of forming the fluororesin surface layer 4 on the elastic layer 2, the composition ratio of silicone rubber or a composition consisting of fluororesin and fluororesin is
interposing a dry layer of polymer liquid having a ratio of 95:5 to 50:50 between the elastic layer 2 and the fluorine resin tube;
A method for forming a fluororesin surface layer of a fixing roller for an electronic copying machine, etc., comprising performing the heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15899984A JPS6138957A (en) | 1984-07-31 | 1984-07-31 | Formation of fluororesin surface layer of fixing roller for electrophotographic copying machine and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15899984A JPS6138957A (en) | 1984-07-31 | 1984-07-31 | Formation of fluororesin surface layer of fixing roller for electrophotographic copying machine and the like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6138957A JPS6138957A (en) | 1986-02-25 |
| JPH0325786B2 true JPH0325786B2 (en) | 1991-04-08 |
Family
ID=15684013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15899984A Granted JPS6138957A (en) | 1984-07-31 | 1984-07-31 | Formation of fluororesin surface layer of fixing roller for electrophotographic copying machine and the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6138957A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS638680A (en) * | 1986-06-28 | 1988-01-14 | Arai Pump Mfg Co Ltd | Production of fixing roller having fluorine resin sleeve on its surface layer |
| JPS63104072A (en) * | 1986-10-21 | 1988-05-09 | I S T:Kk | Fixing roll |
| DE3851403T2 (en) * | 1987-10-14 | 1995-01-19 | Canon Kk | Image fixing roller and image fixing device with this roller. |
| JPH0823725B2 (en) * | 1987-12-14 | 1996-03-06 | キヤノン株式会社 | Fixing roller |
| JP2707268B2 (en) * | 1988-02-29 | 1998-01-28 | 昭和電線電纜株式会社 | Heat fixing roller |
| JP2540944B2 (en) * | 1989-06-22 | 1996-10-09 | キヤノン株式会社 | Fixing device and fixing film |
| JPH0816814B2 (en) * | 1990-06-08 | 1996-02-21 | 株式会社荒井製作所 | Fixing pressure roller and manufacturing method thereof |
| DE69111326T2 (en) * | 1990-08-03 | 1996-01-11 | Canon Kk | Elastic roll and fixing device using this. |
| JP4820497B2 (en) * | 2001-06-12 | 2011-11-24 | 株式会社金陽社 | Fixing member |
| CN106773578A (en) * | 2016-12-30 | 2017-05-31 | 叶大江 | A kind of processing technology of printer, duplicator, all-in-one multifunctional machine fixing mechanism and its heating roller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5296546A (en) * | 1976-02-09 | 1977-08-13 | Ricoh Co Ltd | Fixing roller |
| JPS5374436A (en) * | 1976-12-15 | 1978-07-01 | Ricoh Co Ltd | Preparation of fixing roller |
| JPS59217010A (en) * | 1983-05-25 | 1984-12-07 | Daikin Ind Ltd | Inadhesive elastic roll |
| JPS60205561A (en) * | 1984-03-30 | 1985-10-17 | Canon Inc | Fixing roller and fixing device having it |
-
1984
- 1984-07-31 JP JP15899984A patent/JPS6138957A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5296546A (en) * | 1976-02-09 | 1977-08-13 | Ricoh Co Ltd | Fixing roller |
| JPS5374436A (en) * | 1976-12-15 | 1978-07-01 | Ricoh Co Ltd | Preparation of fixing roller |
| JPS59217010A (en) * | 1983-05-25 | 1984-12-07 | Daikin Ind Ltd | Inadhesive elastic roll |
| JPS60205561A (en) * | 1984-03-30 | 1985-10-17 | Canon Inc | Fixing roller and fixing device having it |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6138957A (en) | 1986-02-25 |
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