JP2006030801A - Fixing member - Google Patents
Fixing member Download PDFInfo
- Publication number
- JP2006030801A JP2006030801A JP2004212074A JP2004212074A JP2006030801A JP 2006030801 A JP2006030801 A JP 2006030801A JP 2004212074 A JP2004212074 A JP 2004212074A JP 2004212074 A JP2004212074 A JP 2004212074A JP 2006030801 A JP2006030801 A JP 2006030801A
- Authority
- JP
- Japan
- Prior art keywords
- silicone rubber
- hardness
- thickness
- fixing member
- addition reaction
- 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
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 130
- 239000004945 silicone rubber Substances 0.000 claims abstract description 121
- 238000007259 addition reaction Methods 0.000 claims abstract description 53
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 37
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 19
- 239000001257 hydrogen Substances 0.000 claims abstract description 19
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 58
- 239000012790 adhesive layer Substances 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 43
- 230000001070 adhesive effect Effects 0.000 abstract description 41
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 description 44
- 238000007654 immersion Methods 0.000 description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- 239000000047 product Substances 0.000 description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 9
- 239000004944 Liquid Silicone Rubber Substances 0.000 description 8
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 8
- 229910052759 nickel Inorganic materials 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 239000013464 silicone adhesive Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 125000003342 alkenyl group Chemical group 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- 238000006482 condensation reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- -1 polysiloxane Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000005370 alkoxysilyl group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- UNJPQTDTZAKTFK-UHFFFAOYSA-K cerium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Ce+3] UNJPQTDTZAKTFK-UHFFFAOYSA-K 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Landscapes
- Fixing For Electrophotography (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
本発明は、定着部材に係り、特に、複写機、ファクシミリ、レーザービームプリンタ等の電子写真式画像形成装置のトナー画像定着ユニットに使用される定着部材に関する。 The present invention relates to a fixing member, and more particularly to a fixing member used in a toner image fixing unit of an electrophotographic image forming apparatus such as a copying machine, a facsimile machine, or a laser beam printer.
電子写真式画像形成装置のトナー画像定着ユニットに用いられる定着部材としては、ローラまたは無端ベルトの形態にある基体上にシリコーンゴム層（弾性層）を設け、トナーの離型性を向上させるために、シリコーンゴム層をフッ素樹脂チューブで被覆したものが知られている。シリコーンゴム層とフッ素樹脂チューブは、通常付加反応型シリコーン接着剤により接着されている。また、シリコーンゴムは、硬化の制御が容易である等取り扱い上の観点から、縮合硬化型のものではなく、付加反応型のものが使用されている。 As a fixing member used in a toner image fixing unit of an electrophotographic image forming apparatus, a silicone rubber layer (elastic layer) is provided on a substrate in the form of a roller or an endless belt so as to improve toner releasability. In addition, a silicone rubber layer coated with a fluororesin tube is known. The silicone rubber layer and the fluororesin tube are usually bonded with an addition reaction type silicone adhesive. Silicone rubber is not an condensation-curable type but an addition-reactive type from the viewpoint of handling such as easy control of curing.
近時、トナー画像の画質をより一層向上させるために、弾性層としてのシリコーンゴム層の低硬度化が図られている。このような低硬度化の要請に応えると同時に強度を確保するために、例えば特許文献１には、低級アルケニル基を有するオルガノポリシロキサンとケイ素原子結合水素原子を有するオルガノポリシロキサン（ハイドロジェンオルガノポリシロキサン）とを後者のオルガノポリシロキサン中のケイ素結合原子の合計量と前者のオルガノポリシロキサン中の全低級アルケニル基の合計量とのモル比が０．１：１〜１：１となるような量で硬化させてシリコーンゴムを生成させることを開示している。
Recently, in order to further improve the image quality of toner images, the hardness of a silicone rubber layer as an elastic layer has been reduced. In order to meet such a demand for low hardness and at the same time to ensure strength, for example,
また、特許文献２には、ビニル基含有オルガノポリシロキサンとハイドロジェンオルガノポリシロキサンとを前者におけるビニル基のモル数に対する後者の水素原子のモル数の比率（Ｈ／Ｖｉ）が１．０未満となるように反応・硬化させたシリコーンゴム層（厚さ２００μｍ以上）の少なくとも最外層側から１０〜１００μｍの厚み範囲の部分を、耐久性向上を目的として、ビニル基含有オルガノポリシロキサンとハイドロジェンオルガノポリシロキサンとをＨ／Ｖｉが１．０以上となるように反応・硬化させたシリコーンゴムにより構成することを開示している。シリコーンゴム層は、全体として、Ｈ／Ｖｉが１．０未満となるものとされている。
本発明者らは、ビニル基含有オルガノポリシロキサンとハイドロジェンオルガノポリシロキサンとを前者におけるビニル基の数（モル数）に対する後者の活性水素原子の数（原子数）の比が１．０未満となる割合で反応・硬化させて生成した付加反応型シリコーンゴム弾性層とその上に付加反応型シリコーンゴム系接着剤を介して設けられたチューブ状フッ素樹脂層を備えた定着部材について鋭意検討を重ねた。その結果、シリコーンゴム弾性層のＪＩＳ Ａ硬度が２０°以下で、その厚さが２ｍｍ以下である場合に、付加反応型シリコーンゴム弾性層の上に１００μｍ以下の厚さの付加反応型シリコーンゴム系接着剤を介してフッ素樹脂チューブを被せ、加熱処理すると、得られた定着部材製品の硬度（フッ素樹脂チューブ表面での硬度）がデュロメータで測定したＪＩＳ Ａ硬度では設計値どおりであったにも拘わらず、実際に定着装置に組み込んで使用した場合、ニップ幅が不足し、定着不良をもたらすという予想外の現象が生じた。 The inventors of the present invention have found that the ratio of the number of active hydrogen atoms (number of atoms) of the latter to the number of vinyl groups (number of moles) of the vinyl group-containing organopolysiloxane and hydrogen organopolysiloxane is less than 1.0. Research and development of a fixing member comprising an addition-reactive silicone rubber elastic layer produced by reaction and curing at a certain ratio and a tubular fluororesin layer provided thereon via an addition-reactive silicone rubber adhesive It was. As a result, when the silicone rubber elastic layer has a JIS A hardness of 20 ° or less and a thickness of 2 mm or less, the addition reaction type silicone rubber system having a thickness of 100 μm or less on the addition reaction type silicone rubber elastic layer. When the fluororesin tube was covered with an adhesive and heat-treated, the hardness of the obtained fixing member product (the hardness on the surface of the fluororesin tube) was in accordance with the design value of the JIS A hardness measured with a durometer. However, when it was actually incorporated and used in a fixing device, an unexpected phenomenon occurred in which the nip width was insufficient, resulting in poor fixing.
この現象についてさらに研究したところ、デュロメータでは確認できなかったが、微小硬度計を用いて測定したところ、定着部材製品の硬度が設計値よりも上昇していることがわかった。 Further research on this phenomenon, which could not be confirmed with a durometer, was measured with a microhardness meter, and it was found that the hardness of the fixing member product was higher than the design value.
従って、本発明は、基体上に設けられた２０°以下のＪＩＳ Ａ硬度と２ｍｍ以下の厚さを有する付加反応型シリコーンゴム層に厚さ１００μｍ以下の付加型シリコーンゴム系接着剤を介して厚さ５０μｍ以下の厚さを有するチューブ状フッ素樹脂層を最外層として設けてなる定着部材において、定着部材の表面での硬度の上昇を抑制し、もって定着不良のおそれを解消することを目的とする。 Accordingly, the present invention provides a thickness of an addition-reactive silicone rubber layer having a JIS A hardness of 20 ° or less and a thickness of 2 mm or less provided on a substrate via an addition-type silicone rubber adhesive having a thickness of 100 μm or less. In a fixing member in which a tubular fluororesin layer having a thickness of 50 μm or less is provided as an outermost layer, an object is to suppress the increase in hardness on the surface of the fixing member and thereby eliminate the possibility of fixing failure. .
本発明によれば、基体と、この基体上に設けられた２０°以下のＪＩＳ Ａ硬度と２ｍｍ以下の厚さを有する付加反応型シリコーンゴム層と、このシリコーンゴム層を覆うように厚さ１００μｍ以下の付加反応型シリコーンゴム系接着剤層を介して最外層として設けられた厚さ５０μｍ以下のチューブ状フッ素樹脂層を備え、前記シリコーンゴム層は、ケイ素に結合した活性水素を有するオルガノポリシロキサンと不飽和脂肪族基を有するオルガノポリシロキサンとを前記不飽和脂肪族基の数に対する前記活性水素原子の数の比が０．８以上となる割合で反応させることにより形成されることを特徴とする定着部材が提供される。 According to the present invention, a base, an addition reaction type silicone rubber layer having a JIS A hardness of 20 ° or less and a thickness of 2 mm or less provided on the base, and a thickness of 100 μm so as to cover the silicone rubber layer. An organopolysiloxane having a tubular fluororesin layer having a thickness of 50 μm or less provided as an outermost layer through an addition reaction type silicone rubber adhesive layer, wherein the silicone rubber layer has active hydrogen bonded to silicon And an organopolysiloxane having an unsaturated aliphatic group by reacting at a ratio that the ratio of the number of the active hydrogen atoms to the number of the unsaturated aliphatic groups is 0.8 or more. A fixing member is provided.
本発明の定着部材は、基体上に設けられた２０°以下のＪＩＳ Ａ硬度と２ｍｍ以下の厚さを有する付加反応型シリコーンゴム層に厚さ１００μｍ以下の付加型シリコーンゴム系接着剤を介して厚さ５０μｍ以下の厚さを有するチューブ状フッ素樹脂層を最外層として設けてなる定着部材であるにも拘わらず、微小硬度計で測定しても設計値よりも表面硬度の上昇が抑制されている。 The fixing member of the present invention is provided on an addition reaction type silicone rubber layer having a JIS A hardness of 20 ° or less and a thickness of 2 mm or less provided on a substrate with an addition type silicone rubber adhesive having a thickness of 100 μm or less. Despite being a fixing member having a tubular fluororesin layer having a thickness of 50 μm or less as the outermost layer, an increase in surface hardness is suppressed from the design value even when measured with a microhardness meter. Yes.
本発明の定着部材は、基体がローラの形態にある定着ローラと、基体が無端ベルトの形態にある定着ローラを含む。 The fixing member of the present invention includes a fixing roller whose base is in the form of a roller, and a fixing roller whose base is in the form of an endless belt.
ローラ形態の基体は、いわゆる芯金であり、鉄、スチール鋼、アルミニウム等の金属で形成することができる。無端ベルト形態の基体は、ステンレス鋼、ニッケル等の金属またはポリイミド等の耐熱性樹脂で形成することができる。 The roller-shaped substrate is a so-called cored bar, and can be formed of a metal such as iron, steel, or aluminum. The base in the form of an endless belt can be formed of a metal such as stainless steel or nickel or a heat resistant resin such as polyimide.
基体の表面上には、弾性層として作用する付加反応型シリコーンゴム層が設けられている。本発明において、このシリコーンゴム層は、２０°以下（０を含む）のＪＩＳ Ａ硬度と２ｍｍ以下の厚さを有する。シリコーンゴム層の厚さの下限値は、通常、０．１ｍｍ（１００μｍ）である。 An addition reaction type silicone rubber layer that acts as an elastic layer is provided on the surface of the substrate. In the present invention, the silicone rubber layer has a JIS A hardness of 20 ° or less (including 0) and a thickness of 2 mm or less. The lower limit of the thickness of the silicone rubber layer is usually 0.1 mm (100 μm).
このシリコーンゴム層を覆うように厚さ１００μｍ以下の付加反応型シリコーンゴム系接着剤層を介して厚さ５０μｍ以下のチューブ状フッ素樹脂層（フッ素樹脂チューブ）が設けられている。接着剤層の厚さが１００μｍを超えて増加すると、接着剤層からのシリコーンゴム層への浸透成分が増えることにより、定着部材製品硬度が上昇するおそれが高くなるとともに、接着剤自体の硬度がＪＩＳ Ａ硬度で３０以上であるので、やはり、定着部材製品の硬度が上昇するおそれが高くなる。また、フッ素樹脂チューブのＪＩＳ Ａ硬度は８０以上であるので、その厚さが５０μｍを超えて増加すると、定着部材製品の硬度が上昇するおそれが高くなる。 A tubular fluororesin layer (fluorine resin tube) having a thickness of 50 μm or less is provided through an addition reaction type silicone rubber adhesive layer having a thickness of 100 μm or less so as to cover the silicone rubber layer. When the thickness of the adhesive layer increases beyond 100 μm, the penetration component from the adhesive layer to the silicone rubber layer increases, which increases the possibility that the fixing member product hardness increases, and the hardness of the adhesive itself increases. Since the JIS A hardness is 30 or more, the hardness of the fixing member product is also increased. Further, since the JIS A hardness of the fluororesin tube is 80 or more, if the thickness increases beyond 50 μm, the hardness of the fixing member product increases.
付加反応型シリコーンゴム系接着剤は、いわゆる自己接着型のものであり、それ自体既知のものを使用することができる。いうまでもなく、付加反応型シリコーンゴム系接着剤は、上記シリコーンゴム層を生成するシリコーンゴム材と同様、基本的に、ビニル基等の不飽和脂肪族基を有するオルガノポリシロキサンとハイドロジェンオルガノポリシロキサンを含有し、白金系硬化触媒で硬化するものである。この接着剤は、接着性付与剤を含有し得る。そのような付加反応型シリコーンゴム系接着剤の一例を挙げると、１分子中に２個以上のアルケニル基を有するオルガノポリシロキサンと、１分子中に２個以上の活性水素（ケイ素に直接結合した水素）を有するオルガノポリシロキサン（ハイドロジェンオルガノポリシロキサン）と、１分子中に１個以上のアルケニル基および（または）活性水素とアルコキシシリル基および（または）エポキシ基を有する化合物（接着性付与剤）とを含み、白金系硬化触媒で硬化させるものである。この接着剤は、耐熱安定剤として、酸化セリウムまたは水酸化セリウムを含有することができる。このような付加反応型シリコーンゴム系接着剤は、特許第２９７０３１１号明細書に記載されており（ただし、カーボンブラック、添加剤は省略できる）、市販もされている。 The addition reaction type silicone rubber-based adhesive is a so-called self-adhesive type, and a known one can be used. Needless to say, the addition reaction type silicone rubber adhesive is basically composed of an organopolysiloxane having an unsaturated aliphatic group such as a vinyl group and a hydrogenorganoorganism, similar to the silicone rubber material forming the silicone rubber layer. It contains polysiloxane and is cured with a platinum-based curing catalyst. This adhesive may contain an adhesion-imparting agent. An example of such an addition reaction type silicone rubber-based adhesive is an organopolysiloxane having two or more alkenyl groups in one molecule and two or more active hydrogens (directly bonded to silicon in one molecule). Hydrogen) organopolysiloxane (hydrogenorganopolysiloxane) and a compound having one or more alkenyl groups and / or active hydrogen, alkoxysilyl groups and / or epoxy groups in one molecule (adhesive agent) And cured with a platinum-based curing catalyst. The adhesive may contain cerium oxide or cerium hydroxide as a heat stabilizer. Such an addition reaction type silicone rubber adhesive is described in Japanese Patent No. 2970311 (however, carbon black and additives can be omitted) and is also commercially available.
付加反応型シリコーンゴム系接着剤層の厚さの下限値は、通常、１０μｍである。 The lower limit of the thickness of the addition reaction type silicone rubber-based adhesive layer is usually 10 μm.
この付加反応型シリコーンゴム系接着剤層を介して、定着部材の最外層として、付加反応型シリコーンゴム層上に設けられるチューブ状フッ素樹脂は、熱可塑性のものであり、テトラフルオロエチレン／パーフルオロアルキルビニルエーテル共重合体（ＰＦＡ）が好ましく用いられる。フッ素樹脂チューブの厚さの下限値は、通常、１５μｍである。 The tubular fluororesin provided on the addition reaction type silicone rubber layer as the outermost layer of the fixing member through the addition reaction type silicone rubber adhesive layer is thermoplastic and is tetrafluoroethylene / perfluoro. An alkyl vinyl ether copolymer (PFA) is preferably used. The lower limit of the thickness of the fluororesin tube is usually 15 μm.
さて、本発明において、シリコーンゴム層は、通常、付加反応型の液状シリコーンゴム材から形成される。付加反応型液状シリコーンゴム材は、主剤となる不飽和脂肪族基を有するオルガノポリシロキサンと、架橋剤となるケイ素に結合した活性水素を有するオルガノポリシロキサン（ハイドロジェンオルガノポリシロキサン）を含む。不飽和脂肪族基を有するオルガノポリシロキサンにおいて、不飽和脂肪族基は、両末端に導入され、側鎖としても導入され得る。そのような不飽和脂肪族基を有するオルガノポリシロキサンは、例えば、下記式（１）で示すことができる。
式（１）において、Ｒ1は、不飽和脂肪族基を表し、各Ｒ2は、Ｃ1〜Ｃ4低級アルキル基、またはフェニル基を表す。ａ＋ｂは、通常、５０〜２０００である。Ｒ1によって表される不飽和脂肪族基は、通常、ビニル基である。各Ｒ2は、通常、メチル基である。 In the formula (1), R 1 represents an unsaturated aliphatic group, and each R 2 represents a C 1 to C 4 lower alkyl group or a phenyl group. a + b is usually 50 to 2000. The unsaturated aliphatic group represented by R 1 is usually a vinyl group. Each R 2 is usually a methyl group.
ハイドロジェンオルガノポリシロキサンは、不飽和脂肪族基を有するオルガノポリシロキサンに対し架橋剤として作用するものであり、主鎖のケイ素原子に結合した水素原子（活性水素）を有する。そのような活性水素含有オルガノポリシロキサンは、例えば、下記式（２）で示すことができる。
式（２）において、Ｒ3は、水素またはＣ1〜Ｃ4低級アルキル基を表し、Ｒ4は、Ｃ1〜Ｃ4低級アルキル基を表す。ｃ＋ｄは、通常、８〜１００である。Ｒ3およびＲ4で表される低級アルキル基は、通常、メチル基である。活性水素原子は、ハイドロジェンオルガノポリシロキサン１分子当たり３個以上存在することが好ましい。 In the formula (2), R 3 represents hydrogen or a C 1 to C 4 lower alkyl group, and R 4 represents a C 1 to C 4 lower alkyl group. c + d is usually 8 to 100. The lower alkyl group represented by R 3 and R 4 is usually a methyl group. It is preferable that three or more active hydrogen atoms are present per molecule of hydrogen organopolysiloxane.
本発明では、不飽和脂肪族基を有するオルガノポリシロキサンとハイドロジェンオルガノポリシロキサンとを前者における不飽和脂肪族基（以下、ＵＳＧ）のモル数に対する後者における活性水素（以下、ＳｉＨ）の原子数の比ＳｉＨ／ＵＳＧを０．８以上となる割合で反応させる。このＳｉＨ／ＵＳＧ比が０．８未満であると、上に述べたように、定着部材の製造過程で硬度が有意に上昇してしまう。ＳｉＨ／ＵＳＧ比が０．８未満であると、以下の実験例で示されるように、当該シリコーンゴム材を十分に硬化させても、有意量の未反応のＵＳＧが硬化シリコーンゴム中に残存し、この未反応ＵＳＧが付加反応型シリコーンゴム系接着剤に由来する反応成分（ハイドロジェンオルガノポリシロキサン等）と反応し、シリコーンゴム層の硬度が上昇し、これが定着部材製品の表面での硬度に反映することがわかった（この定着部材製品表面の硬度上昇は、デュロメータでは測定し得ず、微小硬度系を用いてはじめてわかったものである）。ＳｉＨ／ＵＳＧの比は、０．９〜１．５であることが好ましい。不飽和脂肪族基を有するオルガノポリシロキサンとハイドロジェンオルガノポリシロキサンとの反応に際し、白金触媒を使用するが、その量は、白金原子として、１〜１００重量ｐｐｍ程度で十分である。 In the present invention, the number of atoms of active hydrogen (hereinafter referred to as SiH) in the latter with respect to the number of moles of unsaturated aliphatic groups (hereinafter referred to as USG) is divided into organopolysiloxane having unsaturated aliphatic groups and hydrogen organopolysiloxane. The ratio SiH / USG is reacted at a ratio of 0.8 or more. If the SiH / USG ratio is less than 0.8, as described above, the hardness significantly increases during the manufacturing process of the fixing member. When the SiH / USG ratio is less than 0.8, as shown in the following experimental examples, a significant amount of unreacted USG remains in the cured silicone rubber even when the silicone rubber material is sufficiently cured. The unreacted USG reacts with a reaction component (hydrogenorganopolysiloxane, etc.) derived from the addition reaction type silicone rubber adhesive to increase the hardness of the silicone rubber layer, which increases the hardness on the surface of the fixing member product. (It was found that the increase in the hardness of the fixing member product surface could not be measured with a durometer, and was only found using a micro hardness system). The ratio of SiH / USG is preferably 0.9 to 1.5. In the reaction of the organopolysiloxane having an unsaturated aliphatic group and the hydrogen organopolysiloxane, a platinum catalyst is used, but the amount is about 1 to 100 ppm by weight as a platinum atom.
本発明で使用する付加反応型液状シリコーンゴム材は、市販されている。市販品では、付加反応型液状シリコーンゴム材を構成する不飽和脂肪族基を有するオルガノポリシロキサンとハイドロジェンオルガノポリシロキサンとは別々のパッケージで提供され、両者の硬化反応に必要な硬化触媒（白金触媒）は、ハイドロジェンオルガノポリシロキサンに添加されている。 The addition reaction type liquid silicone rubber material used in the present invention is commercially available. In the commercial product, the organopolysiloxane having unsaturated aliphatic groups and the hydrogenorganopolysiloxane constituting the addition reaction type liquid silicone rubber material are provided in separate packages, and the curing catalyst (platinum) required for the curing reaction of both is provided. The catalyst) is added to the hydrogen organopolysiloxane.
本発明は、付加反応型液状シリコーンゴム材におけるＳｉＨ／ＵＳＧ比を０．８以上に設定することにより、定着部材の製造過程での弾性層の硬度の上昇を抑え、もってニップ幅を十分に確保するものであるが、付加反応型シリコーンゴム層の硬度の上昇によりニップ幅が確保できない現象は、シリコーンゴム層の厚さが５００μｍ以下で特に顕著となる。従って、本発明の手法（ＳｉＨ／ＵＳＧ比を０．８以上に設定すること）は、５００μｍ以下の付加反応型シリコーンゴム層を備える定着部材に対して特に有効である。同様の理由により、本発明の手法は、接着剤層の厚さが２０〜３０μｍの場合、および／またはチューブ状フッ素樹脂の厚さが２０〜３０μｍの場合に、特に有効である。なお、シリコーンゴム層の厚さは、シリコーンゴム層が弾性層としての機能を十分に発揮させるために、接着剤層の厚さの５倍〜２５倍であることが好ましい。 In the present invention, by setting the SiH / USG ratio in the addition reaction type liquid silicone rubber material to 0.8 or more, an increase in the hardness of the elastic layer during the manufacturing process of the fixing member is suppressed, and thus a sufficient nip width is secured. However, the phenomenon in which the nip width cannot be secured due to the increase in the hardness of the addition reaction type silicone rubber layer becomes particularly remarkable when the thickness of the silicone rubber layer is 500 μm or less. Therefore, the method of the present invention (setting the SiH / USG ratio to 0.8 or more) is particularly effective for a fixing member having an addition reaction type silicone rubber layer of 500 μm or less. For the same reason, the method of the present invention is particularly effective when the thickness of the adhesive layer is 20 to 30 μm and / or the thickness of the tubular fluororesin is 20 to 30 μm. The thickness of the silicone rubber layer is preferably 5 to 25 times the thickness of the adhesive layer so that the silicone rubber layer can sufficiently function as an elastic layer.
本発明の定着部材を製造するためには、基体上に付加反応型シリコーンゴム材を塗布し、例えば、１２０℃〜１５０℃で０．５時間〜１時間加熱することによって十分に反応・硬化させてシリコーンゴム層を形成する。しかる後、シリコーンゴム層の外周面に付加反応型シリコーンゴム系接着剤を塗布し、フッ素樹脂チューブを被せ、例えば１２０℃〜１５０℃で０．５時間〜１時間加熱する。こうして、所望の定着部材を製造することができる。なお、フッ素樹脂チューブの内面を、予め、ナトリウムで処理するか、エキシマレーザ照射処理しておくことによって、シリコーンゴム系接着剤との接着をより強固なものとすることができる。 In order to produce the fixing member of the present invention, an addition reaction type silicone rubber material is applied on a substrate, and is sufficiently reacted and cured by heating at 120 ° C. to 150 ° C. for 0.5 hour to 1 hour, for example. To form a silicone rubber layer. Thereafter, an addition reaction type silicone rubber-based adhesive is applied to the outer peripheral surface of the silicone rubber layer, covered with a fluororesin tube, and heated at 120 to 150 ° C. for 0.5 to 1 hour, for example. Thus, a desired fixing member can be manufactured. The inner surface of the fluororesin tube can be treated with sodium or excimer laser irradiation in advance to make the adhesion with the silicone rubber adhesive stronger.
以下、本発明を例により説明するが、本発明は、それらの例より限定されるものではない。 Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited to these examples.
実験例１
この実験例では、付加反応型液状シリコーンゴム材におけるＳｉＨ／ＵＳＧ比が異なることにより、付加反応型シリコーン接着剤との反応によりシリコーンゴムの硬度がどのように変化するかを調べた。
Experimental example 1
In this experimental example, it was examined how the hardness of the silicone rubber changes due to the reaction with the addition reaction type silicone adhesive due to the different SiH / USG ratio in the addition reaction type liquid silicone rubber material.
使用した付加反応型液状シリコーンゴム材は下記表１に示すとおりのものであった。
各付加反応型液状シリコーンゴム材ａ〜ｆを１３０℃で５分間のプレス処理により、２０ｍｍ×７０ｍｍ×６ｍｍ（厚さ）のシリコーンゴム板に成形した後、２００℃で４時間保持した（エージング）。得られた試験片を容量５００ｍＬの容器に入れ、付加反応型シリコーンゴム系接着剤（信越化学社製ＫＥ−１８３０）を流し込み、試験片を浸漬した。試験片を接着剤に浸漬直後、浸漬１時間後、浸漬３時間後、浸漬１２時間後、浸漬２４時間後に取り出し、表面に付着した接着剤をふき取った。これら試験片を２００℃の恒温槽中で２時間放置した後、室温に冷却し、硬度を測定した。 Each addition reaction type liquid silicone rubber material a to f was formed into a 20 mm × 70 mm × 6 mm (thickness) silicone rubber plate by pressing at 130 ° C. for 5 minutes, and then held at 200 ° C. for 4 hours (aging). . The obtained test piece was put into a container with a capacity of 500 mL, and an addition reaction type silicone rubber-based adhesive (KE-1830 manufactured by Shin-Etsu Chemical Co., Ltd.) was poured therein to immerse the test piece. The test piece was taken out immediately after immersion in the adhesive, 1 hour after immersion, 3 hours after immersion, 12 hours after immersion, and 24 hours after immersion, and the adhesive adhered to the surface was wiped off. These test pieces were left in a thermostatic bath at 200 ° C. for 2 hours, then cooled to room temperature, and the hardness was measured.
硬度の測定には、高分子計器社製デュロメータＴＹＰＥ−Ａと同社製微小硬度計ＭＤ−１を用いて行った。微小硬度計ＭＤ−１は、荷重方式がバネ式のもので、バネ荷重が２２ｍＮ（０°）〜３３２ｍＮ（１００°）であり、押針が、直径０．１６ｍｍで長さ５００μｍの円柱形のものである。 The hardness was measured using a durometer TYPE-A manufactured by Kobunshi Keiki Co., Ltd. and a micro hardness tester MD-1 manufactured by the same company. The micro hardness tester MD-1 is a spring type load type, the spring load is 22 mN (0 °) to 332 mN (100 °), and the push needle is a cylindrical shape having a diameter of 0.16 mm and a length of 500 μm. Is.
硬度の測定結果を下記表２および表３に示す。また、各浸漬時間における硬度と浸漬前の硬度（初期硬度値）との差を浸漬時間に対してプロットした結果を図１（デュロメータによるもの）および図２（微小硬度計によるもの）に示す。図１および図２において、線ａ〜ｆは、シリコーンゴム材ａ〜ｆの結果を示す。
これらの結果からわかるように、ＳｉＨ／ＵＳＧ＜０．８であるシリコーンゴム材ｅおよびｆは、接着剤との反応により顕著な硬度上昇を示している。この硬度上昇については、浸漬直後のもので微小硬度計による硬度値が数ポイント上昇し、浸漬時間が増すにつれデュロメータによる硬度値も同様に上昇していることから、接着剤とＳｉＨ／ＵＳＧ＜０．８であるシリコーンゴムとの反応は、シリコーンゴムの表面だけでなく、内部でも生じていると推察される。 As can be seen from these results, the silicone rubber materials e and f with SiH / USG <0.8 show a significant increase in hardness due to the reaction with the adhesive. Regarding the increase in hardness, the hardness value obtained by the microhardness meter is increased by several points immediately after the immersion, and the hardness value obtained by the durometer is similarly increased as the immersion time is increased. Therefore, the adhesive and SiH / USG <0. It is inferred that the reaction with silicone rubber of .8 occurs not only on the surface of the silicone rubber but also inside.
これに対し、ＳｉＨ／ＵＳＧ≧０．８であるシリコーンゴム材ａ〜ｄは、いずれも顕著な硬度上昇を示していない。 On the other hand, none of the silicone rubber materials a to d with SiH / USG ≧ 0.8 shows a significant increase in hardness.
これらの結果から、シリコーンゴム材中の残存不飽和基と接着剤中の活性水素との反応によりシリコーンゴムの硬度が上昇するものと考えられる。また、本発明に従い、ＳｉＨ／ＵＳＧ≧０．８であるシリコーンゴム材を使用すれば、シリコーンゴム層自体の硬度上昇を抑制し得ることもわかる。 From these results, it is considered that the hardness of the silicone rubber increases due to the reaction between the residual unsaturated groups in the silicone rubber material and the active hydrogen in the adhesive. It can also be seen that the use of a silicone rubber material with SiH / USG ≧ 0.8 according to the present invention can suppress an increase in hardness of the silicone rubber layer itself.
実験例２
この実験例は、ＳｉＨ／ＵＳＧ比の違いによる定着部材製品上での硬度の変化を調べるために、実験例１で硬度の上昇が顕著であることが確認されたＳｉＨ／ＵＳＧ＜０．８のシリコーンゴム材と、硬度上昇が低いことが確認されたＳｉＨ／ＵＳＧ＝１のシリコーンゴム材を用い、各シリコーンゴム材について以下の試料Ａ〜Ｃを作製し、硬度を測定した。使用したシリコーンゴム材は、実験例１で使用したシリコーンゴム材ｆと信越化学工業社製Ｘ−３４−２５６０（ＳｉＨ／ビニル基＝１、硬化後の公称ＪＩＳ Ａ硬度８°）（以下、シリコーンゴム材ｇ）であった。
Experimental example 2
In this experimental example, in order to investigate the change in hardness on the fixing member product due to the difference in SiH / USG ratio, it was confirmed that the increase in hardness was significant in Experimental Example 1 with SiH / USG <0.8. Using a silicone rubber material and a silicone rubber material of SiH / USG = 1 that was confirmed to have a low increase in hardness, the following samples A to C were prepared for each silicone rubber material, and the hardness was measured. The silicone rubber material used was the silicone rubber material f used in Experimental Example 1 and X-34-2560 manufactured by Shin-Etsu Chemical Co., Ltd. (SiH / vinyl group = 1, nominal JIS A hardness after curing 8 °) (hereinafter, silicone) Rubber material g).
＜試料Ａの作製＞
内径３４ｍｍ、厚さ５０μｍのニッケル電鋳ベルトの外周面にシリコーンゴム材を塗布し、１５０℃で３０分間加熱して硬化させた。シリコーンゴム層の厚さは３３０μｍであった。このシリコーンゴム層を覆って、接着剤を用いることなく、厚さ３０μｍのＰＦＡチューブを被せて試料Ａを作製した。
<Preparation of sample A>
A silicone rubber material was applied to the outer peripheral surface of a nickel electroformed belt having an inner diameter of 34 mm and a thickness of 50 μm, and was cured by heating at 150 ° C. for 30 minutes. The thickness of the silicone rubber layer was 330 μm. A sample A was prepared by covering the silicone rubber layer and covering a 30 μm thick PFA tube without using an adhesive.
＜試料Ｂの作製＞
試料Ａの作製と同様にして、ニッケル電鋳ベルトの外周面にシリコーンゴム層を形成した。他方、同様のＰＦＡチューブの内面に付加反応型シリコーンゴム系接着剤（信越化学工業社製ＫＥ−１８３０）を塗布し、十分に乾燥させた。接着剤層の厚さは３０μｍであった。この接着剤塗布ＰＦＡチューブをシリコーンゴム層を設けたニッケル電鋳ベルトのシリコーンゴム層を覆うように被せて試料Ｂを作製した。
<Preparation of Sample B>
In the same manner as in the preparation of Sample A, a silicone rubber layer was formed on the outer peripheral surface of the nickel electroformed belt. On the other hand, an addition reaction type silicone rubber adhesive (KE-1830 manufactured by Shin-Etsu Chemical Co., Ltd.) was applied to the inner surface of the same PFA tube and dried sufficiently. The thickness of the adhesive layer was 30 μm. Sample B was prepared by covering this adhesive-coated PFA tube so as to cover the silicone rubber layer of the nickel electroformed belt provided with the silicone rubber layer.
＜試料Ｃの作製＞
上記試料Ｂの作製方法において接着剤を乾燥することなくＰＦＡチューブをシリコーンゴム層を設けたニッケル電鋳ベルトに被せた後、２００℃で６時間加熱して、試料Ｃを作製した。この試料Ｃは定着ベルト製品に相当する。
<Preparation of Sample C>
In the method for preparing Sample B, the PFA tube was placed on a nickel electroformed belt provided with a silicone rubber layer without drying the adhesive, and then heated at 200 ° C. for 6 hours to prepare Sample C. Sample C corresponds to a fixing belt product.
＜硬度の測定＞
外径３４ｍｍの中子を微小硬度計ＭＤ−１の試料台にセットし、押針先端から中子までの距離を６〜１２ｍｍの範囲内に設定する。中子の硬度が９９〜１０１°の範囲内となるように、試料台の位置調整つまみにより中子の位置を固定する。しかる後、中子に試料を被せ、同一試料につき３回硬度を測定し、平均値を求めた。結果を下記表４に示す。
A core with an outer diameter of 34 mm is set on the sample stage of the microhardness meter MD-1, and the distance from the tip of the push needle to the core is set within a range of 6 to 12 mm. The position of the core is fixed by the position adjustment knob of the sample stage so that the hardness of the core is in the range of 99 to 101 °. Thereafter, the core was covered with a sample, the hardness was measured three times for the same sample, and the average value was obtained. The results are shown in Table 4 below.
これら結果から、接着剤を用いていない試料Ａと、製品相当の試料Ｃを見ると、実験例１と同様、ＳｉＨ／ＵＳＧ＜０．８のシリコーンゴム材を用いた場合、ＳｉＨ／ＵＳＧ＝１のシリコーンゴム材を用いた場合に比べ、硬度上昇が大きいことがわかる。 From these results, looking at Sample A that does not use an adhesive and Sample C corresponding to the product, similarly to Experimental Example 1, when a silicone rubber material of SiH / USG <0.8 was used, SiH / USG = 1. It can be seen that the increase in hardness is larger than when the silicone rubber material is used.
試料Ａ、Ｂの比較では、シリコーンゴム材の種類による硬度差（Ｂ−Ａ）はほとんどないことから、接着剤を用いてもシリコーンゴムとの反応が生じていない場合には、定着部材表面上での硬度に差は生じないことがわかる。 In comparison between samples A and B, there is almost no difference in hardness (B-A) depending on the type of silicone rubber material. Therefore, when there is no reaction with silicone rubber even when an adhesive is used, It can be seen that there is no difference in hardness.
これらの結果から、ＳｉＨ／ＵＳＧ＜０．８のシリコーンゴム材が付加反応型シリコーン接着剤と反応する条件では、シリコーンゴム材自体の硬度上昇が、定着部材の表面での硬度に反映されることが確認された。また、本発明に従い、ＳｉＨ／ＵＳＧ≧０．８であるシリコーンゴム材を使用すれば、定着部材表面での硬度もほとんど上昇しないことがわかる。 From these results, under the condition that the silicone rubber material of SiH / USG <0.8 reacts with the addition reaction type silicone adhesive, the hardness increase of the silicone rubber material itself is reflected in the hardness on the surface of the fixing member. Was confirmed. It can also be seen that the hardness on the surface of the fixing member hardly increases when a silicone rubber material satisfying SiH / USG ≧ 0.8 is used according to the present invention.
実験例３
基体としてニッケル電鋳ベルトの代わりに内径５０ｍｍで厚さ７０μｍのポリイミドベルトを用いた以外は、実験例２と同様にして試料ＡおよびＣを作製し、硬度を測定した。結果を下記表５に示す。
Samples A and C were prepared in the same manner as in Experimental Example 2 except that a polyimide belt having an inner diameter of 50 mm and a thickness of 70 μm was used instead of the nickel electroforming belt, and the hardness was measured. The results are shown in Table 5 below.
表５に示す硬度差（Ｃ−Ａ）と表４に示す硬度差（Ｃ−Ａ）を比べると、その差はほとんどなく、従って、付加反応型シリコーンゴムと付加反応型シリコーンゴム系接着剤との反応による定着部材表面での硬度上昇は基体の材質に関係しないことが確認された。 When the hardness difference shown in Table 5 (C-A) is compared with the hardness difference shown in Table 4 (C-A), there is almost no difference. Therefore, the addition reaction type silicone rubber and the addition reaction type silicone rubber adhesive It was confirmed that the increase in hardness on the surface of the fixing member due to this reaction was not related to the material of the substrate.
実験例４
付加反応型シリコーンゴム材として、実験例１で用いたシリコーンゴム材ａおよびｆ、並びに実験例２で用いたシリコーンゴム材ｇを用い、接着剤として付加反応型シリコーンゴム系接着剤（信越化学工業社製ＫＥ−１８３０）および縮合反応型（脱オキシム型）シリコーンゴム系接着剤（東芝シリコーン社製ＴＳＥ−３８７）を用いて、実験例２と同様にして試料ＡおよびＣを作製し、硬度を測定した。結果を表６に示す。
The silicone rubber materials a and f used in Experimental Example 1 and the silicone rubber material g used in Experimental Example 2 were used as the addition reaction type silicone rubber material, and the addition reaction type silicone rubber adhesive (Shin-Etsu Chemical Co., Ltd.) was used as the adhesive. Samples A and C were prepared in the same manner as in Experimental Example 2 using a condensation reaction type (deoxime type) silicone rubber adhesive (TSE-387 manufactured by Toshiba Silicone Co., Ltd.) It was measured. The results are shown in Table 6.
表６に示す結果から、縮合反応型シリコーンゴム系接着剤は、シリコーンゴム材のＳｉＨ／ＵＳＧの比率如何にかかわらず、硬度上昇を生じさせないが、付加反応型シリコーンゴム系接着剤は、ＳｉＨ／ＵＳＧ＜０．８のシリコーンゴム材を用いた場合に顕著な硬度上昇を生じさせることがわかる。従って、本発明で取り扱っている硬度上昇は、付加反応型シリコーンゴム材と付加反応型シリコーン接着剤を用いた場合の特有の現象であるといえる。 From the results shown in Table 6, the condensation reaction type silicone rubber-based adhesive does not cause an increase in hardness regardless of the SiH / USG ratio of the silicone rubber material. It can be seen that when a silicone rubber material with USG <0.8 is used, a significant increase in hardness is caused. Therefore, it can be said that the increase in hardness handled in the present invention is a peculiar phenomenon when an addition reaction type silicone rubber material and an addition reaction type silicone adhesive are used.
そして、以上の結果から、本発明で取り扱っているＳｉＨ／ＵＳＧ＜０．８のシリコーンゴム材を用い、付加反応型シリコーン接着剤を反応させた場合のシリコーンゴムの硬度の上昇は、ＳｉＨ／ＵＳＧ＜０．８のシリコーンゴム材自体の反応硬化後に残る未反応ＵＳＧ基と付加反応型シリコーンゴム系接着剤に由来する反応成分（接着剤中の活性水素等）との反応に起因するといえる。 From the above results, the increase in the hardness of the silicone rubber when the silicone rubber material of SiH / USG <0.8 handled in the present invention is reacted with the addition reaction type silicone adhesive is SiH / USG. It can be said that this is due to a reaction between an unreacted USG group remaining after reaction curing of the silicone rubber material of <0.8 and a reaction component (such as active hydrogen in the adhesive) derived from the addition reaction type silicone rubber adhesive.
実験例５
付加反応型シリコーンゴム材として、実験例１で用いたシリコーンゴム材ａとシリコーンゴム材ｆ、および実験例２で用いたシリコーンゴム材ｇを用い、接着剤として付加反応型シリコーンゴム系接着剤（信越化学工業社製ＫＥ−１８３０）および縮合反応型（脱オキシム型）シリコーンゴム系接着剤（東芝シリコーン社製ＴＳＥ−３８７）を用いて、実験例２と同様にして試料Ｃを作製した。各試料を２３０℃で２５０時間、５００時間、７５０時間、および１０００時間加熱し、それぞれの加熱時間後の硬度を微小硬度計で測定し、加熱前の硬度値（初期値）との差を求めた。結果を表７に示す。
As the addition reaction type silicone rubber material, the silicone rubber material a and the silicone rubber material f used in Experimental Example 1 and the silicone rubber material g used in Experimental Example 2 were used, and the addition reaction type silicone rubber adhesive ( Sample C was prepared in the same manner as in Experimental Example 2 using a KE-1830 manufactured by Shin-Etsu Chemical Co., Ltd.) and a condensation reaction type (deoxime type) silicone rubber adhesive (TSE-387 manufactured by Toshiba Silicone Co., Ltd.). Each sample was heated at 230 ° C. for 250 hours, 500 hours, 750 hours, and 1000 hours, and the hardness after each heating time was measured with a microhardness meter to determine the difference from the hardness value (initial value) before heating. It was. The results are shown in Table 7.
表７に示す結果から、縮合反応型シリコーンゴム系接着剤を用いた場合では、この耐熱試験においても定着部材表面の硬度上昇は問題とならない程度であることがわかる。これに対し、付加反応型シリコーンゴム系接着剤を用いた場合において、ＳｉＨ／ＵＳＧが０．８未満であるシリコーンゴム材ｆを用いたとき、硬度上昇が顕著である。しかしながら、付加反応型シリコーンゴム系接着剤を用いた場合でも、ＳｉＨ／ＵＳＧが０．８以上であるシリコーンゴム材を用いたときには、定着部材表面の硬度上昇は問題とならない程度であることがわかる。 From the results shown in Table 7, it can be seen that when a condensation reaction type silicone rubber-based adhesive is used, an increase in the hardness of the surface of the fixing member is not a problem even in this heat resistance test. On the other hand, in the case of using an addition reaction type silicone rubber adhesive, when the silicone rubber material f having SiH / USG of less than 0.8 is used, the increase in hardness is remarkable. However, even when an addition reaction type silicone rubber-based adhesive is used, it is understood that when a silicone rubber material having a SiH / USG of 0.8 or more is used, an increase in the hardness of the fixing member surface is not a problem. .
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004212074A JP4343787B2 (en) | 2004-07-20 | 2004-07-20 | Fixing member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004212074A JP4343787B2 (en) | 2004-07-20 | 2004-07-20 | Fixing member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006030801A true JP2006030801A (en) | 2006-02-02 |
| JP4343787B2 JP4343787B2 (en) | 2009-10-14 |
Family
ID=35897192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004212074A Expired - Fee Related JP4343787B2 (en) | 2004-07-20 | 2004-07-20 | Fixing member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4343787B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007099835A (en) * | 2005-09-30 | 2007-04-19 | Shin Etsu Chem Co Ltd | Method for reducing surface-tacking property of cured product of silicone rubber, liquid silicone rubber composition for sealing semiconductor, silicone rubber-sealed semiconductor device and method for producing the semiconductor device |
| WO2008075753A1 (en) | 2006-12-21 | 2008-06-26 | Canon Kabushiki Kaisha | Fixing member for electrophotography, method for producing the same, fixing device, and electrophotographic image forming apparatus |
| JP2009244887A (en) * | 2006-12-21 | 2009-10-22 | Canon Inc | Fixing member for electrophotography, method for producing the same, fixing device and electrophotographic image forming apparatus |
| JP2013120279A (en) * | 2011-12-07 | 2013-06-17 | Canon Inc | Method for manufacturing electrophotographic member |
| RU2505846C1 (en) * | 2010-01-05 | 2014-01-27 | Кэнон Кабусики Кайся | Fixing element and method of its manufacture and fixing device |
| RU2611084C2 (en) * | 2012-12-19 | 2017-02-21 | Кэнон Кабусики Кайся | Electrophotographic fixing element, fixing device and electrophotographic image forming device |
-
2004
- 2004-07-20 JP JP2004212074A patent/JP4343787B2/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4684835B2 (en) * | 2005-09-30 | 2011-05-18 | 信越化学工業株式会社 | Method for reducing surface tackiness of cured silicone rubber, liquid silicone rubber composition for semiconductor encapsulation, silicone rubber encapsulated semiconductor device, and method for producing the semiconductor device |
| US8057906B2 (en) | 2005-09-30 | 2011-11-15 | Shin-Etsu Chemical Co., Ltd. | Method of reducing surface tackiness of silicone rubber cured product, liquid silicone rubber composition for sealing semiconductor, silicone rubber-sealed semiconductor device, and method of producing semiconductor device |
| JP2007099835A (en) * | 2005-09-30 | 2007-04-19 | Shin Etsu Chem Co Ltd | Method for reducing surface-tacking property of cured product of silicone rubber, liquid silicone rubber composition for sealing semiconductor, silicone rubber-sealed semiconductor device and method for producing the semiconductor device |
| CN101563658B (en) * | 2006-12-21 | 2011-07-06 | 佳能株式会社 | Fixing member for electrophotography, method for producing the same, fixing device, and electrophotographic image forming apparatus |
| WO2008075753A1 (en) | 2006-12-21 | 2008-06-26 | Canon Kabushiki Kaisha | Fixing member for electrophotography, method for producing the same, fixing device, and electrophotographic image forming apparatus |
| JP4597245B2 (en) * | 2006-12-21 | 2010-12-15 | キヤノン株式会社 | Electrophotographic fixing member, fixing device, and electrophotographic image forming apparatus |
| JP2009244887A (en) * | 2006-12-21 | 2009-10-22 | Canon Inc | Fixing member for electrophotography, method for producing the same, fixing device and electrophotographic image forming apparatus |
| KR101045118B1 (en) * | 2006-12-21 | 2011-06-30 | 캐논 가부시끼가이샤 | Fixing member for electrophotography, method for producing the same, fixing device, and electrophotographic image forming apparatus |
| EP2090939A1 (en) * | 2006-12-21 | 2009-08-19 | Canon Kabushiki Kaisha | Fixing member for electrophotography, method for producing the same, fixing device, and electrophotographic image forming apparatus |
| US7991341B2 (en) | 2006-12-21 | 2011-08-02 | Canon Kabushiki Kaisha | Electrophotographic fixing member and manufacturing method thereof, fixing apparatus, and electrophotographic image forming apparatus |
| US7725068B2 (en) | 2006-12-21 | 2010-05-25 | Canon Kabushiki Kaisha | Electrophotographic fixing member and manufacturing method thereof, fixing apparatus, and electrophotographic image forming apparatus |
| EP2090939A4 (en) * | 2006-12-21 | 2012-08-15 | Canon Kk | Fixing member for electrophotography, method for producing the same, fixing device, and electrophotographic image forming apparatus |
| EP2595001A2 (en) | 2006-12-21 | 2013-05-22 | Canon Kabushiki Kaisha | Fixing member for electrophotography, method for producing the same, fixing device, and electrophotographic image forming apparatus |
| EP2595001A3 (en) * | 2006-12-21 | 2017-01-04 | Canon Kabushiki Kaisha | Fixing member for electrophotography, method for producing the same, fixing device, and electrophotographic image forming apparatus |
| RU2505846C1 (en) * | 2010-01-05 | 2014-01-27 | Кэнон Кабусики Кайся | Fixing element and method of its manufacture and fixing device |
| JP2013120279A (en) * | 2011-12-07 | 2013-06-17 | Canon Inc | Method for manufacturing electrophotographic member |
| RU2611084C2 (en) * | 2012-12-19 | 2017-02-21 | Кэнон Кабусики Кайся | Electrophotographic fixing element, fixing device and electrophotographic image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4343787B2 (en) | 2009-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7114351B2 (en) | Fixing member and heat fixing device | |
| JP6921649B2 (en) | Fixing member, fixing device and electrophotographic image forming device | |
| US6838140B1 (en) | Fuser member having platinum catalyzed addition cured silicone layer | |
| US7991341B2 (en) | Electrophotographic fixing member and manufacturing method thereof, fixing apparatus, and electrophotographic image forming apparatus | |
| JP5393134B2 (en) | Image heating apparatus, pressure roller used in image heating apparatus, and method of manufacturing pressure roller | |
| JP6442300B2 (en) | Electrophotographic member and thermal fixing device | |
| JP6429533B2 (en) | Electrophotographic fixing member, fixing device, and electrophotographic image forming apparatus | |
| US10545439B2 (en) | Fixed member and heat fixing apparatus | |
| JP2016029462A (en) | Fixing member | |
| US20200371460A1 (en) | Fixing member, heat fixing apparatus, and image forming apparatus | |
| JP7321771B2 (en) | Fixing member and heat fixing device | |
| JP4343787B2 (en) | Fixing member | |
| JP2009103882A (en) | Pressure member, image heating device, and image forming apparatus | |
| JP7293828B2 (en) | Fixing member, fixing device, and image forming apparatus | |
| JP2019008102A (en) | Fixation member, fixation device and image formation apparatus using the same and manufacturing method of fixation member | |
| JP2019028184A (en) | Fixing member and method for manufacturing fixing member | |
| US20030138263A1 (en) | Image heating apparatus | |
| JP2018146835A (en) | Rotor for electrophotography, fixation device, electrophotographic image formation device and manufacturing method of rotor | |
| JP7000756B2 (en) | Endless belt, manufacturing method of endless belt, endless belt member, fixing member, fixing device, and image forming device | |
| JP2022185416A (en) | Fixing member and heat fixing device | |
| JP2022165386A (en) | Fixation member and heat fixation device | |
| JP2024063761A (en) | Rotating body for fixing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070119 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090626 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090630 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090709 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120717 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 4343787 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120717 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130717 Year of fee payment: 4 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |