JPS63239479A - Thermal fixing roller - Google Patents
Thermal fixing rollerInfo
- Publication number
- JPS63239479A JPS63239479A JP7353387A JP7353387A JPS63239479A JP S63239479 A JPS63239479 A JP S63239479A JP 7353387 A JP7353387 A JP 7353387A JP 7353387 A JP7353387 A JP 7353387A JP S63239479 A JPS63239479 A JP S63239479A
- Authority
- JP
- Japan
- Prior art keywords
- silicone rubber
- weight
- layer
- parts
- fixing 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.)
- Pending
Links
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 35
- 239000004945 silicone rubber Substances 0.000 claims abstract description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000006185 dispersion Substances 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 5
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims abstract description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000010453 quartz Substances 0.000 claims abstract description 5
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 5
- 239000000654 additive Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 150000003609 titanium compounds Chemical class 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 150000001451 organic peroxides Chemical group 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 abstract description 4
- 229920002313 fluoropolymer Polymers 0.000 abstract 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 16
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- PAOHAQSLJSMLAT-UHFFFAOYSA-N 1-butylperoxybutane Chemical compound CCCCOOCCCC PAOHAQSLJSMLAT-UHFFFAOYSA-N 0.000 description 1
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 1
- 239000004813 Perfluoroalkoxy alkane Substances 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920009441 perflouroethylene propylene Polymers 0.000 description 1
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 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
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
ローラに関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a heat fixing roller used in a heat fixing unit of an electronic copying machine or the like.
（従来の技術）
従来より、電子複写機等の熱定着部に使用される熱定着
ローラして、アルミ等からなる金属芯軸上にプライマを
介してシリコーンゴム材料を被覆し、さらにこのゴム層
上にトナーとの離型性に優れたＰＴＦＥ （テトラフル
オロエチレン樹脂）やＰＦＡ （パーフロロアルコキシ
樹脂）等のフッ素樹脂を被覆したものが使用されている
。(Prior Art) Conventionally, heat fixing rollers used in heat fixing parts of electronic copying machines, etc. have been coated with a silicone rubber material on a metal core shaft made of aluminum or the like via a primer, and this rubber layer is further coated with a silicone rubber material on a metal core shaft made of aluminum or the like. A material coated with a fluororesin such as PTFE (tetrafluoroethylene resin) or PFA (perfluoroalkoxy resin), which has excellent releasability from toner, is used.
（発明が解決しようとする問題点）
しかしながら、このような従来のローラは、シリコーン
ゴム層とフッ素樹脂層との接着が不十分で、使用時に表
面のフッ素樹脂層に浮きあるいは剥離を生じ易く、ロー
ラ寿命が短くなるという問題があった。(Problems to be Solved by the Invention) However, in such conventional rollers, the adhesion between the silicone rubber layer and the fluororesin layer is insufficient, and the fluororesin layer on the surface tends to float or peel off during use. There was a problem that the roller life was shortened.
そこで本発明はこのような従来の問題を解決しようとす
るもので、シリコーンゴム層とフッ素樹脂層との接着が
良好で使用時に表層の浮きや剥離を生じることのない耐
久性に優れた熱定着ローラを提供することを目的とする
。Therefore, the present invention aims to solve these conventional problems.The present invention aims to provide a highly durable heat fixing device that has good adhesion between the silicone rubber layer and the fluororesin layer, and does not cause lifting or peeling of the surface layer during use. The purpose is to provide rollers.
〔発明の構成］
（問題を解決するための手段）
本発明の熱定着ローラは、側鎖にビニル基を有するジメ
チルポリシロキサンからなる分子量がｅｏｏ、 ｏｏｏ
以上のシリコーンゴムに充填剤と加硫剤その他の添加剤
とを適当量配合してなる熱伝導率が１．０ Ｘ １０”
” ｃａｔ／ａｍ Ｈｓｅｃ ”ｃ以上の熱加硫型シリ
コーンゴム組成物を、ローラ芯軸上に加硫接着させてシ
リコーンゴム屑を形成し、このシリコーンゴム屑上にフ
ッ素樹脂ディスパージョンを塗布焼成してフッ素樹脂層
を形成して構成したことを特徴としている。[Structure of the Invention] (Means for Solving the Problem) The heat fixing roller of the present invention is made of dimethylpolysiloxane having a vinyl group in the side chain and has a molecular weight of eoo or ooo.
The thermal conductivity is 1.0 x 10" made by blending appropriate amounts of filler, vulcanizing agent and other additives with the above silicone rubber.
A heat-curable silicone rubber composition with a rating of ``cat/am Hsec''c or higher is vulcanized and adhered onto a roller core shaft to form silicone rubber scraps, and a fluororesin dispersion is applied and baked on the silicone rubber scraps. It is characterized in that it is constructed by forming a fluororesin layer.
本発明に使用する熱加硫型シリコーンゴム組成物は、側
鎖にビニル基を有するジメチルポリシロキサンからなる
分子量が６００．０（ｔｏ・以上のシリコーンゴムをベ
ースに、充填剤として乾式シリカ、石英粉末、チタン化
合物、アルミナを配合し、さらに加硫剤その他の添加剤
を配合して、熱伝導率が１．０ Ｘ １０’ Ｃａｔ／
ａｍ ・ＳｅＣ・”Ｃ以上である組成物が適している。The heat-curable silicone rubber composition used in the present invention is based on a silicone rubber made of dimethylpolysiloxane having a vinyl group in the side chain and having a molecular weight of 600.0 (to) or more, and uses dry silica and quartz as fillers. By blending powder, titanium compound, alumina, and further blending vulcanizing agents and other additives, the thermal conductivity is 1.0 x 10' Cat/
Compositions with am.SeC.''C or higher are suitable.
各充填剤の配合量は、シリコーンゴム１００重量部に対
し、乾式シリカ５〜２０重量部、石英粉末５０〜１５０
重巣部、チタン化合物２０〜５０重量部、アルミナ５・
〜５０重員部上することが好ましい。いずれか一種でも
この範囲を外れるとフッ素樹脂層との密着性が低下する
。The blending amount of each filler is 5 to 20 parts by weight of dry silica and 50 to 150 parts by weight of quartz powder to 100 parts by weight of silicone rubber.
Heavy nest part, titanium compound 20-50 parts by weight, alumina 5.
It is preferred to use up to 50 parts by weight. If any one type is out of this range, the adhesion to the fluororesin layer will decrease.
また加硫剤としては有機過酸化物が適しており、ＤＴＢ
Ｐ （ジー【−ブチルバーオキシド）をはじめ、従来シ
リコーンゴムの加硫剤として使用されている各種公知の
ものを通常の配合量で使用することができる。In addition, organic peroxides are suitable as vulcanizing agents, and DTB
Various known vulcanizing agents conventionally used as vulcanizing agents for silicone rubber, including P (di-butyl peroxide), can be used in usual amounts.
本発明においては、上述の各成分をミキシングロールあ
るいはバンバリーミキサ−等の通常の混線機で混練し、
これをプライマ処理したローラ芯軸上に常法により加硫
接着させる。加硫後必要に応じてその表面を研削、研磨
した後、その表層にフッ素樹脂ディスパージョンを塗布
し、焼成してフッ素樹脂層を形成して本発明の熱定着ロ
ーラが製造される。In the present invention, the above-mentioned components are kneaded using a common mixer such as a mixing roll or a Banbury mixer,
This is vulcanized and adhered onto the primer-treated roller core shaft by a conventional method. After vulcanization, the surface is ground and polished if necessary, and then a fluororesin dispersion is applied to the surface layer and fired to form a fluororesin layer, thereby producing the heat fixing roller of the present invention.
なお本発明に使用するフッ素樹脂ディスバージコントし
テハ、ＰＴＦＥ、ＰＦＡ、ＦＥＰ Ｃｆドラフルオロエ
チレン−ヘキサフルオロプロピレン共重合体）等のディ
スパージョンがあげられる。The fluororesin dispersion used in the present invention includes dispersions such as PTFE, PTFE, PFA, and FEP (fluoroethylene-hexafluoropropylene copolymer).
（作用）
本発明の熱定着ローラでは、上記したような特定の配合
の熱加硫型シリコーンゴム組成物によりシリコーンゴム
屑を構成し、その表面にフッ素樹脂ディスパージョンを
塗布し焼成してフッ素樹脂層を設けた構成としたことに
より、シリコーンゴム屑とフッ素樹脂層との密着性が良
好となり、使用時に表層の浮きや剥離を生じることがな
くなり耐久性が向上する。(Function) In the heat fixing roller of the present invention, silicone rubber scraps are made of a heat-curable silicone rubber composition having a specific composition as described above, and a fluororesin dispersion is applied to the surface of the scrap and baked to form a fluororesin. The layered structure improves the adhesion between the silicone rubber scraps and the fluororesin layer, prevents the surface layer from lifting or peeling during use, and improves durability.
（実施例） 以下、本発明の実施例について記載する。(Example) Examples of the present invention will be described below.
ｒＭ鎖にビニル基をを有するジメチルポリシロキサンか
らなる分子量がｓｏｏ、 ｏｏｏのシリコーンゴム１０
０重量部に対し、乾式シリカ１０重量部、石英粉末１０
０重量部、チタン化合物３０重量部、アルミナ２０重量
部と、２，５−ジメチル−２，５−ジー（ｔ−ブチルパ
ーオキシ）ヘキサン０．５重量部をバンバリーミキサ−
を用いて混練し熱伝導率が２ｘ １０−” ｃａｔ／ｃ
ｍ・ｓｅｃ ・℃の熱加硫型シリコーンゴム組成物を得
た。Silicone rubber 10 with a molecular weight of soo or ooo made of dimethylpolysiloxane having a vinyl group in the rM chain
0 parts by weight, 10 parts by weight of dry silica, 10 parts by weight of quartz powder
0 parts by weight, 30 parts by weight of the titanium compound, 20 parts by weight of alumina, and 0.5 parts by weight of 2,5-dimethyl-2,5-di(t-butylperoxy)hexane in a Banbury mixer.
The thermal conductivity is 2x 10-” cat/c.
A heat-curable silicone rubber composition having a temperature of m·sec·°C was obtained.
次いでこの組成物を、表面にプライマＮＯ，１４ＡＲ（
商品名 信越化学社製）を塗布したアルミ等の金属芯軸
（外径５０１ｔＩｌ、胴長３２０ｎｍ）上に加硫接着さ
せて厚さ０．３ｍｍのシリコーンゴム層を形成した。Next, this composition was applied to the surface with primers NO, 14AR (
A silicone rubber layer with a thickness of 0.3 mm was formed by vulcanization and adhesion on a metal core shaft (outer diameter: 501 tIl, body length: 320 nm) made of aluminum or the like (trade name: Shin-Etsu Chemical Co., Ltd.) coated thereon.
この後このシリコーンゴム屑の表面に、ＰＴＦＥディス
パージョン（ＡＤ−６３９旭硝子社製）を塗布焼成して
厚さ１８μｍのＰＴＦＥ層を形成した。Thereafter, a PTFE dispersion (AD-639 manufactured by Asahi Glass Co., Ltd.) was applied and fired on the surface of this silicone rubber scrap to form a 18 μm thick PTFE layer.
このようにして得られたＰＴＦＥ被覆シリコーンゴムロ
ーラの、シリコーンゴム層とフッ素樹脂層との密着力を
測定したところ、常温で８０〜９０ｇ／３、通常の熱定
着温度である１７０°Ｃで１８０〜２００ｇ／ａｍと、
従来のローラが常温で１００〜１２０゜／ａＩｌ、１７
０℃で２００〜２４０１ ／ ａｓであるのと比較して
、大幅な密着力の増大が認められた。When the adhesion between the silicone rubber layer and the fluororesin layer of the PTFE-coated silicone rubber roller thus obtained was measured, it was found to be 80 to 90 g/3 at room temperature, and 180 to 180 g/3 at 170°C, which is the normal heat fixing temperature. 200g/am and
Conventional rollers are 100-120°/al at room temperature, 17
A significant increase in adhesion was observed compared to 200 to 2401/as at 0°C.
［発明の効果］
以−Ｆ説明したように本発明の熱定着ローラによれば、
特定の配合の熱加硫型シリコーンゴム組成物を用いてシ
リコーンゴム屑を構成し、その表面にフッ素樹脂ディス
パージョンを塗布焼成してフッ素樹脂層を形成した構造
としたので、シリコーンゴム屑とフッ素樹脂層との密着
力が増大し耐久性が大幅に向上する。[Effects of the Invention] As explained below, according to the heat fixing roller of the present invention,
Silicone rubber scraps are made using a heat-curable silicone rubber composition with a specific formulation, and a fluororesin layer is formed by coating and baking a fluororesin dispersion on the surface of the silicone rubber scraps. Adhesion to the resin layer increases and durability is greatly improved.
出願人 昭和電線電纜株式会社代理人 弁理士
須 山 佐 −
（ほか１名）
手続ネ１１正書
昭和６２年８ 月１０ 日Applicant Showa Cable and Wire Co., Ltd. Agent Patent Attorney Sa Suyama - (1 other person) Procedure Nei 11 Official Book August 10, 1986
Claims (3)
からなる分子量が６００，０００以上のシリコーンゴム
に充填剤と加硫剤とその他の添加剤とを適当量配合して
なる熱伝導率が１．０×１０＾−＾３ｃａｌ／ｃｍ・ｓ
ｅｃ・℃以上の熱加硫型シリコーンゴム組成物を、ロー
ラ芯軸上に加硫接着させてシリコーンゴム層を形成し、
このシリコーンゴム層上にフッ素樹脂ディスパージョン
を塗布焼成してフッ素樹脂層を形成してなることを特徴
とする熱定着ローラ。(1) A silicone rubber made of dimethylpolysiloxane having a vinyl group in the side chain and having a molecular weight of 600,000 or more mixed with appropriate amounts of a filler, a vulcanizing agent, and other additives has a thermal conductivity of 1. 0×10^-^3cal/cm・s
A silicone rubber layer is formed by vulcanizing and adhering a heat vulcanizable silicone rubber composition having a temperature of ec/°C or higher on the roller core shaft,
A heat fixing roller characterized in that a fluororesin layer is formed by coating and baking a fluororesin dispersion on the silicone rubber layer.
に対し乾式シリカ５〜２０重量部と、石英粉末５０〜１
５０重量部と、チタン化合物２０〜５０重量部と、アル
ミナ５〜５０重量部とが配合される特許請求の範囲第１
項記載の熱定着ローラ。(2) As a filler, 5 to 20 parts by weight of dry silica and 50 to 1 part by weight of quartz powder per 100 parts by weight of the silicone rubber.
Claim 1, in which 50 parts by weight, 20 to 50 parts by weight of a titanium compound, and 5 to 50 parts by weight of alumina are blended.
Thermal fixing roller described in section.
項または第２項記載の熱定着ローラ。(3) Claim 1 in which the vulcanizing agent is an organic peroxide
The heat fixing roller according to item 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7353387A JPS63239479A (en) | 1987-03-27 | 1987-03-27 | Thermal fixing roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7353387A JPS63239479A (en) | 1987-03-27 | 1987-03-27 | Thermal fixing roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63239479A true JPS63239479A (en) | 1988-10-05 |
Family
ID=13520963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7353387A Pending JPS63239479A (en) | 1987-03-27 | 1987-03-27 | Thermal fixing roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63239479A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59220349A (en) * | 1983-05-28 | 1984-12-11 | Minolta Camera Co Ltd | Fixing roll made of addition type liquid silicone rubber |
| JPS60166975A (en) * | 1984-07-09 | 1985-08-30 | Hitachi Ltd | Silicone rubber for heat fixing roll |
| JPS6184671A (en) * | 1984-10-03 | 1986-04-30 | Showa Electric Wire & Cable Co Ltd | Heat fixing device |
| JPS6189845A (en) * | 1984-10-11 | 1986-05-08 | キヤノン株式会社 | Fixing roller |
| JPS61124974A (en) * | 1984-11-21 | 1986-06-12 | Minolta Camera Co Ltd | Manufacture of heat fixing roller |
-
1987
- 1987-03-27 JP JP7353387A patent/JPS63239479A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59220349A (en) * | 1983-05-28 | 1984-12-11 | Minolta Camera Co Ltd | Fixing roll made of addition type liquid silicone rubber |
| JPS60166975A (en) * | 1984-07-09 | 1985-08-30 | Hitachi Ltd | Silicone rubber for heat fixing roll |
| JPS6184671A (en) * | 1984-10-03 | 1986-04-30 | Showa Electric Wire & Cable Co Ltd | Heat fixing device |
| JPS6189845A (en) * | 1984-10-11 | 1986-05-08 | キヤノン株式会社 | Fixing roller |
| JPS61124974A (en) * | 1984-11-21 | 1986-06-12 | Minolta Camera Co Ltd | Manufacture of heat fixing roller |
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