JPH0333784A - Multilayered endless film composition for fixing - Google Patents
Multilayered endless film composition for fixingInfo
- Publication number
- JPH0333784A JPH0333784A JP16896189A JP16896189A JPH0333784A JP H0333784 A JPH0333784 A JP H0333784A JP 16896189 A JP16896189 A JP 16896189A JP 16896189 A JP16896189 A JP 16896189A JP H0333784 A JPH0333784 A JP H0333784A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- film
- fixing
- compd
- viscosity
- 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
- 239000000203 mixture Substances 0.000 title claims description 8
- 239000010410 layer Substances 0.000 claims abstract description 11
- 239000002344 surface layer Substances 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 5
- 229920001721 polyimide Polymers 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 5
- 239000002243 precursor Substances 0.000 claims description 2
- 239000009719 polyimide resin Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 23
- 239000011248 coating agent Substances 0.000 abstract description 22
- 239000006185 dispersion Substances 0.000 abstract description 7
- 229920005575 poly(amic acid) Polymers 0.000 abstract description 7
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 abstract description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 abstract description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 abstract description 2
- 229920002313 fluoropolymer Polymers 0.000 abstract 2
- 239000004642 Polyimide Substances 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 239000003973 paint Substances 0.000 description 13
- 238000003618 dip coating Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
［技術分野］
本発明は、静電複写機等の画像形成装置に装備される定
着用多層エンドレスフィルム組成物に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a multilayer endless film composition for fixing that is installed in an image forming apparatus such as an electrostatic copying machine.
［背景技術］
従来、滲講酬エンドレスフィルムを得るためには、支持
層としてボリイよド樹脂又はその前駆体、表面層として
は、フッ素樹脂が使用され、被塗布物を塗料中に浸漬し
、徐々に引き上げることにより、被塗布物と塗料の表面
張力を利用して塗膜を形成する浸漬塗布方法、または、
微小開口部を有するノズルより塗料を吐出し霧化するこ
とにより、生成した微小液滴を被塗布物上（付着させて
塗膜を形成するスプレー法により層を形成し、単独ある
いはこれらを組合わせて必要な回数繰返した後、被塗布
物より脱型してう層フィルムを得ている。しかしこれら
の方法によれば、最終的に焼成しても、表面層のフッ素
樹脂の溶融粘度が高く、レベリングが充分なされないた
め、塗膜上の凸凹や微小な穴等の塗膜欠陥が解消されな
い、あるいは特に顔料分散系では上述の問題の他に、焼
成によるクラックが発生しやすいという問題点があった
。[Background Art] Conventionally, in order to obtain an endless film, a boiled resin or its precursor is used as a support layer, a fluororesin is used as a surface layer, and the object to be coated is immersed in a paint. A dipping coating method in which a coating film is formed by gradually pulling up the coating material using the surface tension between the coating material and the coating material, or
By discharging paint from a nozzle with a micro opening and atomizing it, the resulting micro droplets are deposited on the object to be coated (using a spray method to form a coating film, forming a layer, either alone or in combination). After repeating the required number of times, the coated material is removed from the mold to obtain a veneer film. However, with these methods, even after final firing, the melt viscosity of the fluororesin in the surface layer remains high. In addition to the above-mentioned problems, there is a problem that coating film defects such as unevenness and minute holes are not eliminated due to insufficient leveling, or that cracks are likely to occur due to firing, especially in pigment dispersion systems. there were.
［発明の目的］
本発明の目的は、焼成時のフッ素樹脂の熔融粘度を下げ
ることによりレベリング性を向上させ、塗膜上の凸凹等
の塗膜欠陥のない平滑な定着用多層エンドレスフィルム
組成物を提供するものである。[Object of the Invention] The object of the present invention is to improve the leveling property by lowering the melt viscosity of the fluororesin during firing, and to provide a smooth multilayer endless film composition for fixing without coating film defects such as unevenness on the coating film. It provides:
さらに本発明の目的は、可塑性の大きな物質を添加する
ことによって、塗膜の弾性を向上させ、クラック発生を
防ぐ効果を得ることである。A further object of the present invention is to improve the elasticity of the coating film and to obtain the effect of preventing the occurrence of cracks by adding a substance with high plasticity.
［発明の概要］
しての表面層を有する定着用多層エンド、レスフィルム
において、フッ素樹脂層にレベリング剤を使用すること
を特徴とする定着用多層エンドレスフィルム組成物に関
する。[Summary of the Invention] The present invention relates to a multilayer endless film composition for fixing, characterized in that a leveling agent is used in the fluororesin layer in the multilayer end/less film for fixing, which has a surface layer.
［発明の詳細な説明］
前記目的を達成するために、本発明の定着用多層エンド
レスフィルム組成物においては、レベリング剤として、
オルガノポリシロキサンが好ましく、表面層のフッ素樹
脂１００重畳部に対し２５℃における粘度ｌＯ〜１００
ＯＯＯＯｃ Ｓ、好ましくは
１００〜
１００００ＣＳのオルガノポリシロキサンを塗膜が不均
一になりやすく、また、塗膜形成後にオルガノポリシロ
キサンが塗膜内部から塗膜表面へ移行（以下ブリードと
略す）しやすいため、定クラック防止性の効果が充分で
ない。[Detailed Description of the Invention] In order to achieve the above object, the multilayer endless film composition for fixing of the present invention contains as a leveling agent:
Organopolysiloxane is preferable, and has a viscosity of lO to 100 at 25°C based on 100 overlapping parts of the fluororesin in the surface layer.
Organopolysiloxane of OOOOc S, preferably 100 to 10,000 CS, is used because the coating film tends to be uneven, and after the coating film is formed, the organopolysiloxane easily migrates from the inside of the coating film to the coating surface (hereinafter abbreviated as bleed). , the effect of constant crack prevention is not sufficient.
［実施例１］
ポリアミック酸溶液ｔｏｏ重量部をＮ−メチル−２−ピ
ロリドン３００重量部で希釈し、粘度２０ＣＰの塗料を
調整した。[Example 1] Too many parts by weight of a polyamic acid solution were diluted with 300 parts by weight of N-methyl-2-pyrrolidone to prepare a paint having a viscosity of 20CP.
次に四フッ化エチレンパーフロロアルコキシ共重合体（
以下ＰＦＡと略す）分散液の固形分との比率がｌｐｐｍ
となるように、２５℃における粘度が３００ＣＳのシメ
ヂルボリシロキサンを添加し、粘度３５０ＣＰの塗料を
調整した。Next, tetrafluoroethylene perfluoroalkoxy copolymer (
The ratio of the solid content of the dispersion (hereinafter abbreviated as PFA) to the solid content is lppm.
A paint having a viscosity of 350 CP was prepared by adding shimedilborisiloxane having a viscosity of 300 CS at 25° C. so that the following was achieved.
口径５０ｍｍ、長さ２５０ｍｍのシリンダー外面にポリ
アミック酸塗料を浸漬塗布し、１２０℃で３０分乾燥を
行なった後ＰＦＡ塗料を浸漬塗布し、１２０℃で３０分
乾燥後４００℃で２０分、焼成によりイミド化を行なっ
た後、脱型二層の定着用エンドレスフィルムを得た。Polyamic acid paint was dip-coated on the outer surface of a cylinder with a diameter of 50 mm and a length of 250 mm, and after drying at 120°C for 30 minutes, PFA paint was applied by dip-coating, dried at 120°C for 30 minutes, and then baked at 400°C for 20 minutes. After imidization, a demolded two-layer fixing endless film was obtained.
このフィルムの膜厚は１５〜１７μｍであった。The thickness of this film was 15 to 17 μm.
［比較例１］
ポリアミック酸塗料は、実施例１と同様に調整した塗料
を使用した。ＰＦＡ塗料は、実施例１の塗料調整に使用
したＰＦＡ分散液とした。[Comparative Example 1] A polyamic acid paint prepared in the same manner as in Example 1 was used. The PFA paint used was the PFA dispersion used in preparing the paint in Example 1.
実施例１と同様に浸漬塗布方法により、二層エンドレス
フィルムを得た。このフィルムの膜厚は１５〜２０μｍ
であった。A two-layer endless film was obtained using the same dip coating method as in Example 1. The thickness of this film is 15-20μm
Met.
［実施例２］
ポリアミック酸塗料は実施例１と同様に調整した塗料を
使用した。[Example 2] A polyamic acid paint prepared in the same manner as in Example 1 was used.
次に四フッ化エチレン樹脂（以下ＰＴＦＥと略す）分散
液の固形分６５％、２５％における粘度が３００ＣＳの
ジメチルポリシロキサンｌｐｐｍ、平均粒径７μｍのグ
ラフフィト、３５％の比率となるような処方で粘度３７
０ＣＰの塗料を調整した。Next, the solid content of the dispersion of tetrafluoroethylene resin (hereinafter abbreviated as PTFE) is 65%, and at 25%, the viscosity is 300CS dimethylpolysiloxane lppm, the average particle size is 7μm, and the ratio is 35%. and the viscosity is 37
Adjusted 0CP paint.
実７ｉ１例１と同様に、浸漬塗布方法により二層エンド
レスフィルムを得た。この膜厚は１７〜１９μｍであっ
た。また表面層を篭子ｇ１′！微鏡で１０００倍に拡大
して観察したところ、１ｃｍ２当りのクランクは３〜６
個であった。Example 7i1 A two-layer endless film was obtained in the same manner as in Example 1 by the dip coating method. The film thickness was 17 to 19 μm. Also, the surface layer is a basket g1'! When observed with a microscope at 1000 times magnification, there are 3 to 6 cranks per cm2.
It was.
［比較例２］
ポリアミック酸塗料は実施例１と同様に調整した塗料を
使用した。次にＰＴＦＥ分散液の固形分６５％、平均粒
径７μｍのグラファイト３５％の処方で粘度３９０ＣＰ
の塗料を調整した。[Comparative Example 2] A polyamic acid paint prepared in the same manner as in Example 1 was used. Next, a PTFE dispersion with a solid content of 65% and a graphite of 35% with an average particle size of 7 μm has a viscosity of 390CP.
Adjusted the paint.
実施例１と同様に、浸漬塗布方法により、二層エンドレ
スフィルムを得た。この膜厚は１８〜２４μｍであり、
表面層を電子頭徴鏡で１０００倍に拡大して観察したと
ころｊａｍ’当りのタックは３５〜５０個であった。A two-layer endless film was obtained by the dip coating method in the same manner as in Example 1. This film thickness is 18 to 24 μm,
When the surface layer was observed with an electronic cephaloscope under 1000 times magnification, there were 35 to 50 tacks per jam'.
以上の様に、本発明の定着用多層エンドレスフィルム組
成物によれば、表面層に使用されるフッ素樹脂にレベリ
ング剤としてオルガノボリシロキサンを使用することに
より、
■塗膜の凸凹が少なくなるため、膜厚のバラツキが小さ
くなり均一なフィルムが得られる。As described above, according to the multilayer endless film composition for fixing of the present invention, by using organoborisiloxane as a leveling agent in the fluororesin used in the surface layer, (1) the unevenness of the coating film is reduced; Variations in film thickness are reduced and a uniform film can be obtained.
■顔料分散系においては、クラック防止に効果が大きく
、均一なフィルムが得られる。(2) Pigment dispersion systems are highly effective in preventing cracks and produce uniform films.
等の利点がある。There are advantages such as
Claims (2)
持層と、フッ素樹脂から形成される離型層としての表面
層を有する定着用多層エンドレスフィルムにおいて、フ
ッ素樹脂層にレベリング剤を使用することを特徴とする
定着用多層エンドレスフィルム組成物。(1) In a multilayer endless film for fixing that has a support layer formed from a polyimide resin or its precursor and a surface layer as a release layer formed from a fluororesin, it is recommended to use a leveling agent in the fluororesin layer. A multilayer endless film composition for fixing.
０ＣＳのオリガノポリシロキサンであることを特徴とす
る特許請求の範囲第１項の定着用多層エンドレスフィル
ム組成物。(2) The leveling material has a viscosity of 10 to 100,000 at 25℃
The multilayer endless film composition for fixing according to claim 1, characterized in that it is an OCS organopolysiloxane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16896189A JPH0333784A (en) | 1989-06-29 | 1989-06-29 | Multilayered endless film composition for fixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16896189A JPH0333784A (en) | 1989-06-29 | 1989-06-29 | Multilayered endless film composition for fixing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0333784A true JPH0333784A (en) | 1991-02-14 |
Family
ID=15877770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16896189A Pending JPH0333784A (en) | 1989-06-29 | 1989-06-29 | Multilayered endless film composition for fixing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0333784A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5411779A (en) * | 1989-07-21 | 1995-05-02 | Nitto Denko Corporation | Composite tubular article and process for producing the same |
| JP2006337664A (en) * | 2005-06-01 | 2006-12-14 | Fujifilm Holdings Corp | Conductive hard coat film, antireflection film, polarizing plate and image display device |
-
1989
- 1989-06-29 JP JP16896189A patent/JPH0333784A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5411779A (en) * | 1989-07-21 | 1995-05-02 | Nitto Denko Corporation | Composite tubular article and process for producing the same |
| JP2006337664A (en) * | 2005-06-01 | 2006-12-14 | Fujifilm Holdings Corp | Conductive hard coat film, antireflection film, polarizing plate and image display device |
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