JPH02231129A - Seamless belt - Google Patents
Seamless beltInfo
- Publication number
- JPH02231129A JPH02231129A JP15665289A JP15665289A JPH02231129A JP H02231129 A JPH02231129 A JP H02231129A JP 15665289 A JP15665289 A JP 15665289A JP 15665289 A JP15665289 A JP 15665289A JP H02231129 A JPH02231129 A JP H02231129A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- powder
- seamless belt
- layer
- belt
- 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
- 229920005989 resin Polymers 0.000 claims abstract description 53
- 239000011347 resin Substances 0.000 claims abstract description 53
- 239000000843 powder Substances 0.000 claims abstract description 50
- 239000000314 lubricant Substances 0.000 claims abstract description 27
- 238000000465 moulding Methods 0.000 claims abstract description 19
- 229920001971 elastomer Polymers 0.000 claims abstract description 11
- 239000000806 elastomer Substances 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 9
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 229920001721 polyimide Polymers 0.000 claims description 7
- 239000009719 polyimide resin Substances 0.000 claims description 7
- 239000004962 Polyamide-imide Substances 0.000 claims description 6
- 229920002312 polyamide-imide Polymers 0.000 claims description 6
- 229920002050 silicone resin Polymers 0.000 claims description 6
- 239000004693 Polybenzimidazole Substances 0.000 claims description 5
- 229920002480 polybenzimidazole Polymers 0.000 claims description 5
- 230000002776 aggregation Effects 0.000 claims description 3
- 238000004220 aggregation Methods 0.000 claims description 2
- 238000005054 agglomeration Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 29
- 229920002379 silicone rubber Polymers 0.000 description 9
- 239000004945 silicone rubber Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000001723 curing Methods 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000012948 isocyanate Chemical group 0.000 description 3
- 150000002513 isocyanates Chemical group 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000448280 Elates Species 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920000909 polytetrahydrofuran Polymers 0.000 description 2
- 229920003226 polyurethane urea Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000004944 Liquid Silicone Rubber Substances 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- OMRDSWJXRLDPBB-UHFFFAOYSA-N N=C=O.N=C=O.C1CCCCC1 Chemical compound N=C=O.N=C=O.C1CCCCC1 OMRDSWJXRLDPBB-UHFFFAOYSA-N 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
く産業上の利用分舒〉
本発明は、表面に剥離性のよい滑材粉末凝集層を有する
シームレススリーブあるいはベルト（以下単にシームレ
スベルトという）に関し、特に静電記録用ベルト，定着
ベルトに好適なものである。Detailed Description of the Invention Industrial Applications The present invention relates to a seamless sleeve or belt (hereinafter simply referred to as a seamless belt) having an agglomerated layer of lubricant powder with good releasability on its surface, and particularly for electrostatic recording. It is suitable for belts and fixing belts.
く従来の技術〉
例えば、静電記録装置に用いられて転写用電荷を担持す
る、転写ベルトあるいは静電コピーマスタと呼ばれる非
感光性誘電体ベルトの如き静電記録用ベルトは、従来、
合成樹脂シートの表面に導電層をラミネートしたり、金
属の薄膜を蒸着したりし、更にその上には誘電体層を形
成し、両端を突き合せ接続するか、重ね合せ接続して形
成されている。Conventional technology> For example, electrostatic recording belts such as non-photosensitive dielectric belts called transfer belts or electrostatic copy masters, which are used in electrostatic recording devices and carry charges for transfer, have conventionally
A conductive layer is laminated or a thin metal film is deposited on the surface of a synthetic resin sheet, and a dielectric layer is formed on top of that, and both ends are butt-connected or stacked. There is.
しかし、かかる静電記録転写用ベルト又は静電記録誘電
体ベルトはエンドレスとするための接続や、ラミネート
あるいは蒸着に時間を要し、又、眉間の接着性が使用寿
命に大きな影響を与えろ。However, such electrostatic recording transfer belts or electrostatic recording dielectric belts require time for endless connection, lamination, or vapor deposition, and the adhesiveness between the eyebrows greatly affects the service life.
そこで、合成樹脂の基材と導電層とを同時に一体にエン
ドレスに成形する方法を先に提案した（特開昭６１−９
５３６１号公報）。Therefore, we first proposed a method of endlessly molding a synthetic resin base material and a conductive layer at the same time (Japanese Patent Laid-Open No. 61-9
Publication No. 5361).
しかし、この場合も、表面の誘電体層はコーティング法
により形成している。However, in this case as well, the surface dielectric layer is formed by a coating method.
また、一般の樹脂フィルムベルトにおいても例えば表面
の汚れ性、離型性を確保する場合にも基体ベルトの表面
にコーティング法によりフッ素樹脂層が形成されろ。Also, in the case of a general resin film belt, a fluororesin layer is formed on the surface of the base belt by a coating method, for example, in order to ensure surface stain resistance and mold release properties.
一方、電子写真複写機，ファク’Ｊミシ，プリンター等
においては、例えば第４図に示すように複写機１００の
感光体１０１上に静電画像を形成し、この静電画像を画
像形成部１０２によってトナー像として現像するととも
に該トナー像を転写部１０３によって紙等の被転写物１
４に転写した後、この被転写物１０４上の転写像を定着
部１０５によって定着することにより被転写物を得てい
る。On the other hand, in an electrophotographic copying machine, a fax machine, a printer, etc., an electrostatic image is formed on a photoreceptor 101 of a copying machine 100, as shown in FIG. The toner image is developed as a toner image by the transfer unit 103, and the toner image is transferred to the transfer target 1 such as paper.
4, the transferred image on the transfer object 104 is fixed by a fixing section 105, thereby obtaining a transfer object.
この従来の定着部１０５においては、第５図に示すよう
に、従来より一対のヒートロール１０６とシリコーンゴ
ム製の加圧ロール１０７とからなり、被転写物１０４を
挾み込んで定着するロール定着が採用されていろ。As shown in FIG. 5, this conventional fixing unit 105 is conventionally comprised of a pair of heat rolls 106 and a pressure roll 107 made of silicone rubber, and is a roll fixing unit that sandwiches and fixes the transferred object 104. I hope it is adopted.
しかしながら、このロール定着は加圧ロール１０７の押
圧力が強いため例えば細い線などがつぶれてしまい画像
が鮮明でなくなるという問題があるため、近年、第６図
に示すよウナヒートロール１０８とこのヒートロール１
０８の一部を覆うように当接するペルト１０９とからな
るベルト定着が採用されている。However, this roll fixing has the problem that the pressing force of the pressure roll 107 is so strong that, for example, thin lines are crushed and the image becomes unclear, so in recent years, as shown in FIG. roll 1
A belt fixing system consisting of a pelt 109 that abuts so as to cover a part of the belt 08 is employed.
このベルト定着は、接触面積が大きくとれろため定着ベ
ルト１０９の押付け圧力が弱くて良く、精密な複写、あ
るいは特に大版、例丸ばＡＯの用紙の被写に好適である
。This belt fixing requires only a weak pressing pressure of the fixing belt 109 because the contact area is large, and is suitable for precise copying or especially for printing on large size sheets, such as round AO sheets.
このベルト定着に用いる定着ベルト１０９は、一般に、
ミラブルシリコーンゴム（ＨＴＶ）を原料として、押出
し成形、又はシート巻き成形等によって成形した後、研
磨したものである。The fixing belt 109 used for this belt fixing is generally
It is made from millable silicone rubber (HTV) as a raw material, molded by extrusion molding, sheet winding molding, etc., and then polished.
その後、この得られた定着ベルトには被転写物１０４と
当接する表面にフッ素コート層を施してトナーとの剥離
性を良くしている。Thereafter, a fluorine coating layer is applied to the surface of the obtained fixing belt that contacts the transfer target 104 to improve the releasability from the toner.
く発明が解決しようとする課題〉
前述したように、従来の静電記録用ベルトにおいては樹
脂ベルトの表面のフッｚｍ脂層はコーティング法により
形成されるので、別工程となって高価であり、又、接着
処方が必要となり、屈曲等による剥離寿命にも問題があ
る。Problems to be Solved by the Invention> As mentioned above, in conventional electrostatic recording belts, the resin layer on the surface of the resin belt is formed by a coating method, which is a separate process and is expensive. Furthermore, an adhesive formulation is required, and there is also a problem in the peel life due to bending, etc.
一方、従来のフッ素コート層を施した定着ベルト１０９
を製造するには多工程の製造過程を経て製品化されるた
め、手間と時間がかかるという問題がある。また、フッ
素コー．ト剤を用いろためのコーティング技術に困難性
があり更に手間がかかるという問題もある。On the other hand, the fixing belt 109 coated with a conventional fluorine coating layer
There is a problem in that it takes time and effort to manufacture because it goes through a multi-step manufacturing process. Also, fluorine coat. There is also the problem that the coating technique for using a coating agent is difficult and time-consuming.
更に、ベルト表面とフッ素コート剤とのコーティングに
おいては屈曲寿命に限界があるという問題がある。Furthermore, there is a problem in that there is a limit to the flex life of the coating between the belt surface and the fluorine coating agent.
本発明はこのような事情に鑑み、表面剥離性がよく高寿
命であり、簡単且つ低コストで製造できるシームレスベ
ルト、特に静電記録用ベルト及び転写用ベルトに好適な
シームレスベルトを提供することを目的とする。In view of these circumstances, the present invention aims to provide a seamless belt that has good surface releasability, has a long life, and can be manufactured easily and at low cost, and is particularly suitable for electrostatic recording belts and transfer belts. purpose.
く課題を解決するための手段〉
前記目的を達成する本発明に係るシームレスベルトは、
熱硬化型の樹脂若しくはエラストマー，滑材粉末及び揮
発性溶剤を含有する混合樹脂を遠心成形してなるシーム
レスベルトであって、その表面に滑材粉末凝集層が形成
されていることを特徴とする。Means for Solving the Problems〉 The seamless belt according to the present invention that achieves the above object has the following features:
A seamless belt made by centrifugally molding a mixed resin containing a thermosetting resin or elastomer, a lubricant powder, and a volatile solvent, characterized by having a lubricant powder agglomerated layer formed on its surface. .
ここで、熱硬化型の樹脂若しくはエラストマーとは、成
形時に熱硬化性を示す樹脂若しくはエラストマーのこと
であり、その種類は用途に応じて選定することができる
。例えば静電記録用ベルト用としてはポリイミド樹脂，
ポリアミドイミド樹脂，ポリベンズイミダゾール樹脂，
高硬度ポリウレタンなどが好適であり、また、定着ベル
ト用としてはポリイミド樹脂，ポリアミドイミド樹脂，
ポリベンズイミダゾール樹脂，耐熱性ポリウレタン，高
硬度液状シリコーンゴムなどが好適である。Here, the thermosetting resin or elastomer refers to a resin or elastomer that exhibits thermosetting properties during molding, and the type thereof can be selected depending on the application. For example, for electrostatic recording belts, polyimide resin,
Polyamideimide resin, polybenzimidazole resin,
High hardness polyurethane is suitable, and polyimide resin, polyamideimide resin,
Suitable materials include polybenzimidazole resin, heat-resistant polyurethane, and high-hardness liquid silicone rubber.
なお、耐熱性ポリウレタンとしては、ポリウレタンウレ
ア（末端アミノ基を有するポリオールとイソシアネート
とからなるもの；例えばイハラケミカル工業■製Ｒ−１
１０）、ポリオールとしてポリテトラメチレンエーテル
グリコール（ＰＴＭＥＧ）を用いたウレタン（例えば、
ＡＫＺＯ社製ＥＬＡＴＥ １ ０ ３など：登録商標）
、イソシアネートとしてシクロヘキサンジイソシアネー
｝（ＣＨＤＩ）を用いたウレタン（例丸ば、ＡＫＺＯ社
製ＥＬＡＴＥ １ ０ ８など：登録商標）などを挙げ
ろことができろ。In addition, as the heat-resistant polyurethane, polyurethane urea (composed of a polyol having a terminal amino group and isocyanate; for example, R-1 manufactured by Ihara Chemical Industry ■)
10), urethane using polytetramethylene ether glycol (PTMEG) as a polyol (e.g.
ELATE 1 0 3 etc. manufactured by AKZO: registered trademark)
Examples include urethanes using cyclohexane diisocyanate (CHDI) as the isocyanate (eg, Maruba, ELATE 108 manufactured by AKZO Co., Ltd.: registered trademark).
また、滑材粉末とは、ベルト表面に凝集層を形成した際
に剥離性を付与するものをいい、例えばシリコーン樹脂
粉末，フッ素樹脂粉末を挙げることができる。なお、こ
の滑材粉末の粒径はシリコーン樹脂粉末又はフッ素樹脂
粉末の場合には３〜１０μｍ程度が望ましい。Further, the lubricant powder refers to a substance that imparts releasability when an agglomerated layer is formed on the belt surface, and includes, for example, silicone resin powder and fluororesin powder. In addition, the particle size of this lubricant powder is preferably about 3 to 10 μm in the case of silicone resin powder or fluororesin powder.
本発明に係るシームレスベルトは、熱硬化型の樹脂若し
くはエラストマー，滑材粉末及び揮発性溶剤を含有する
混合樹脂を遠心成形することにより、ベース樹脂と滑材
粉末との比重差を利用してベルト表面に滑材粉末凝集層
を形成するものである。すなわち、第１図に示すように
、ベース樹脂１の外側表面に滑材粉末凝集層２が形成さ
れる。なお、この際、遠心成形するに必要な粘度を得る
ために揮発性溶剤を用いるので、混合樹脂は滑材粉末よ
り十分に小さい比重を有している。The seamless belt according to the present invention is produced by centrifugally molding a mixed resin containing a thermosetting resin or elastomer, a lubricant powder, and a volatile solvent, thereby making use of the difference in specific gravity between the base resin and the lubricant powder. This forms an agglomerated layer of lubricant powder on the surface. That is, as shown in FIG. 1, a lubricant powder aggregation layer 2 is formed on the outer surface of the base resin 1. At this time, since a volatile solvent is used to obtain the viscosity necessary for centrifugal molding, the mixed resin has a specific gravity that is sufficiently lower than that of the lubricant powder.
また、滑材粉末として比重の大きいフッ素樹脂粉末を用
いた場合、ざらに導電性カーボンを添加して混合樹脂と
した場合、この混合樹脂を遠心成形すると第２図に示す
ようにベース樹脂１の外側表面にフッ素樹脂Ｉｉｉ２ｋ
が形成され、その内側に導電性カーボン層３が形成され
ろ。かかる導電性カーボン層３を有するシームレスベル
トは特に静電記録用ベルトとして有効なものである。In addition, when a fluororesin powder with a high specific gravity is used as a lubricant powder, or when a mixed resin is made by adding conductive carbon to the powder, when this mixed resin is centrifugally molded, the base resin 1 becomes as shown in Figure 2. Fluororesin III2K on the outer surface
is formed, and a conductive carbon layer 3 is formed inside it. A seamless belt having such a conductive carbon layer 3 is particularly effective as an electrostatic recording belt.
サラに、本発明のシームレスベルトにおいては、滑材粉
末としてシリコーン樹脂粉末や３００〜３５０℃で熱溶
融するフッ素樹脂粉末、例えば四フッ化エチレン六フッ
化プロピレン共重合体（ＦＥＰ），ポリフルオロアルコ
キシフッ素樹脂（ＰＦＡ）等を用いた場合、遠心成形後
の加熱硬化時に滑材粉末凝集層を溶融した状態とするこ
ともできろ。なお、フッ素樹脂粉末としては、勿論、ボ
リ四フッ化エチレン（ＰＴＦＥ）等の熱溶融しないもの
を用いることもできる。In particular, in the seamless belt of the present invention, silicone resin powder or fluororesin powder that melts at 300 to 350°C, such as tetrafluoroethylene hexafluoropropylene copolymer (FEP), polyfluoroalkoxy When fluororesin (PFA) or the like is used, the lubricant powder agglomerated layer may be in a molten state during heat curing after centrifugal molding. Note that as the fluororesin powder, it is of course possible to use a material that does not melt by heat, such as polytetrafluoroethylene (PTFE).
本発明に係るシームレスベルトを製造するには、例えば
、まず、ベース樹脂材料８揮発性溶媒に溶解し、これに
滑材粉末、さらに必要に応じて導電性カーボンを混合し
て混合樹脂とし、この混合樹脂を円筒型に注入して加熱
しつつ遠心成形すればよい。To manufacture the seamless belt according to the present invention, for example, first, the base resin material 8 is dissolved in a volatile solvent, and a lubricant powder and, if necessary, conductive carbon are mixed therein to form a mixed resin. The mixed resin may be injected into a cylindrical mold and centrifugally molded while being heated.
この遠心成形においては、ベース樹脂が半硬化された状
態で脱型し、その後脱型したベルトを鉄芯に被せて本硬
化を行う。ここで、遠心成形を行う円筒型は例えばポリ
イミド樹脂，ポリアミドイミド樹脂等を用いた場合は１
１０〜１３０℃にまた、ポリウレタンを用いた場合は８
０〜１１０℃に保てばよ《、また、本硬化は例えばポリ
イミド樹脂，ポリアミドイミド樹脂等を用いた場合は３
００〜３５０℃で、またポリウレタンを用いた場合ば８
０〜１１０℃で行う。In this centrifugal molding, the base resin is demolded in a semi-hardened state, and then the demolded belt is placed over an iron core to perform main curing. Here, if the cylindrical mold for centrifugal molding is made of polyimide resin, polyamide-imide resin, etc.
10 to 130℃, and 8 if polyurethane is used.
It should be maintained at a temperature of 0 to 110 degrees Celsius (also, main curing can be performed at
00 to 350℃, or 8 if polyurethane is used.
It is carried out at 0-110°C.
本発明にかかるシームレスベルト、特に薄肉のシームレ
スベルトを高精度に均一な肉厚となるように製造するに
は、特公昭６〇一１５４５４号公報に示されろような方
法、すなわち、まず、円筒型内に液状硬化型シリコーン
ゴムを注入して硬化させて型面を形成し、該型面を用い
て上述したようにシームレスベルトを遠心成形すればよ
い。In order to manufacture a seamless belt according to the present invention, particularly a thin seamless belt, to have a uniform wall thickness with high precision, a method as shown in Japanese Patent Publication No. 60115454, that is, first, a cylindrical Liquid curable silicone rubber may be injected into the mold and cured to form a mold surface, and the seamless belt may be centrifugally molded using the mold surface as described above.
このように本発明のシームレスベルトは遠心成形された
樹脂又はエラストマーのシームレスベルト表面の剥離性
を改良したものであり、又、高強度，高ヤング率，クリ
ープ性能向上によりベルト走行性も良好なものであり、
静電記録用ベルト，定着ベルトに用いて好適なものであ
る。さらに、表面の剥離性の改良によ秒Ｗ４摩耗性も向
上され、寿命も向上されろ。また、揮発性溶剤で希釈さ
れた樹脂又はエラストマーを遠心成形するので薄肉化が
可能であや、特に定着ベルトとしての低熱容量の性能に
も対応できろ。すなわち、定着ベルトとしては熱容量を
小さくするために薄肉とする必要があり、例えば０．０
１〜１．０間の厚さのものが望ましい。In this way, the seamless belt of the present invention has improved peelability on the surface of the seamless belt made of centrifugally molded resin or elastomer, and also has good belt runnability due to its high strength, high Young's modulus, and improved creep performance. and
It is suitable for use in electrostatic recording belts and fixing belts. Furthermore, by improving the surface releasability, the second W4 abrasion resistance will also be improved, and the service life will also be improved. In addition, since the resin or elastomer diluted with a volatile solvent is centrifugally molded, it is possible to make the film thinner, and in particular, it can be used as a fixing belt with low heat capacity. In other words, the fixing belt needs to be thin in order to reduce its heat capacity, for example, 0.0
A thickness between 1 and 1.0 is desirable.
なお、特に薄肉の場合にはシリコーンゴム硬化層からな
る型面を用いて遠心成形することにより芯出しを精密に
行うことができ、厚さ精度が良好になり、研磨する必要
もな《、鏡面性が確保できろという効果を得ることがで
きる。In addition, especially in the case of thin walls, centrifugal molding using a mold surface made of a hardened silicone rubber layer allows precise centering, improves thickness accuracy, and eliminates the need for polishing. You can get the effect of ensuring your sexuality.
く実 施 例〉 以下、本発明を実施例に基づいて説明する。Example of implementation Hereinafter, the present invention will be explained based on examples.
（実施例１）
第３図に示すように、外周を保温層１３で覆い内部に加
熱用流体の通路１２を有し、蓋１４で開口を閉じろこと
ができるようにした箱形の加熱ジャケット１１内に、加
熱ジャケット１１の底部を貫通してモーター１５で回転
するように設けた回転軸６の一端を侵入させ、回転軸１
６に一端に円筒型１７の一端を固定した遠心成形装置を
用いて静電記録転写用ベルトを製造した。(Example 1) As shown in FIG. 3, a box-shaped heating jacket 11 whose outer periphery is covered with a heat insulating layer 13 and has a heating fluid passage 12 inside, and whose opening can be closed with a lid 14. One end of the rotating shaft 6 provided to be rotated by the motor 15 penetrates the bottom of the heating jacket 11 and is inserted into the heating jacket 11.
An electrostatic recording transfer belt was manufactured using a centrifugal molding device in which one end of a cylindrical mold 17 was fixed to one end of the belt.
内径１４０ｍｍ，長さ５００ｍｍの円筒型を１０００ｒ
．ｐ．＋ｍで回転させながら、常温硬化性シリコーンゴ
ム信越化学工業製ＫＥ１８００Ａ１００重量部、同じ＜
ＫＥｌ８００Ｂ１０重量部、同じ＜ ＫＥ１８０００
２重量部と、シリコーンオイル５０重量部、トルエン５
０重量部からなる混合物を、円筒型内に注入し、１０〜
１５分そのまま回転をつづけ円筒型内面に遠心成形しつ
いで１４０℃の雰囲気に１２０分間保持し円筒型内で硬
化させ、円筒型内にシリコーンゴムの硬化層を形成した
。このときのシリコーンゴムの硬化層の内径は１３５＋
ｍであった。A cylindrical type with an inner diameter of 140 mm and a length of 500 mm is heated to 1000 r.
．． p. While rotating at +m, 100 parts by weight of room temperature curable silicone rubber KE1800A manufactured by Shin-Etsu Chemical Co., Ltd.
KEl800B10 parts by weight, same < KE18000
2 parts by weight, 50 parts by weight of silicone oil, and 5 parts by weight of toluene.
A mixture consisting of 0 parts by weight is poured into a cylindrical mold, and
Rotation was continued for 15 minutes to centrifugally mold the inner surface of the cylindrical mold, and the product was kept in an atmosphere of 140° C. for 120 minutes to be cured within the cylindrical mold, thereby forming a cured layer of silicone rubber within the cylindrical mold. The inner diameter of the cured layer of silicone rubber at this time is 135+
It was m.
一方全芳香族イミド系フェス（東レ製、商品名トレニー
ス＃２０００） １５ ０ ｇを、Ｎメチル−２−ビロ
リドンを主成分とし、Ｎ，Ｎ−ジメチルアセトアミドな
どを含有する上記フェス用溶媒１５０ｇに溶解し、この
溶液に平均粒子径５〜１０μｍのフッ素樹脂粉末（ＰＦ
Ａ］２ｇ及び平均粒子径３０μｍのカーボンブラック粉
（ライオン製、商品名ケッチ工ンブラック）３ｇを混合
した。On the other hand, 150 g of a wholly aromatic imide-based festival (manufactured by Toray Industries, trade name: Trenice #2000) was dissolved in 150 g of the above-mentioned festival solvent containing N-methyl-2-pyrrolidone as a main component and N,N-dimethylacetamide, etc. Then, fluororesin powder (PF) with an average particle size of 5 to 10 μm was added to this solution.
A] and 3 g of carbon black powder having an average particle size of 30 μm (manufactured by Lion, trade name: Ketchukon Black) were mixed.
この混合液を１ ０ ０ Ｏ ｒｐｍで回転していろ円
筒型１７に注入し、雰囲気温度を１２０〜１３０℃に昇
温し３０分間遠心成形した。This mixed solution was injected into a cylindrical mold 17 rotating at 100 O rpm, the ambient temperature was raised to 120 to 130° C., and centrifugal molding was performed for 30 minutes.
回転を停止してからぺ．ルトを円筒型１７から取り出し
、３００℃で３０分間加熱して硬化を完了させた。得ら
れたベルトは厚さ１００μｍで、外側に厚さ１０μｍの
フッ素樹脂層が形成され、その内側にカーボンブラック
粉によって厚さ１０μｍの導電層が形成されており、内
側の厚さ８０μｍの層は、ほぼ非導電性のポリイミド樹
脂層であった。このシームレスベルトは静電記録用ベル
トとして好適なものであった。After stopping the rotation. The melt was removed from the cylindrical mold 17 and heated at 300° C. for 30 minutes to complete curing. The resulting belt has a thickness of 100 μm, with a 10 μm thick fluororesin layer formed on the outside, a 10 μm thick conductive layer made of carbon black powder on the inside, and an 80 μm thick inner layer. , the polyimide resin layer was almost non-conductive. This seamless belt was suitable as an electrostatic recording belt.
（実施例２）
イハラケミカル工業■製のボレアＲ−１１０（ポリウレ
タンウレア）のポリオール２５０ｇに、日興ファインブ
ロダクッ■の「メチルシリコンパウダー」（平均粒径３
〜１０μｍ）を８３ｇ混合し、トルエン溶媒に溶解し、
さらにイソシアネート７５ｇを混合して混合樹脂とした
。(Example 2) 250 g of Borea R-110 (polyurethane urea) polyol manufactured by Ihara Chemical Industry ■ was added with ``Methyl Silicon Powder'' (average particle size 3
~10μm) was mixed with 83g and dissolved in toluene solvent,
Furthermore, 75 g of isocyanate was mixed to obtain a mixed resin.
この円筒型１７内に上記混合樹脂を注入し、８０℃で３
０分間遠心成形し、さらに１００℃で８時間本硬化する
ことにより、外側表面にシリコーン粉末凝集層を有する
シームレスベルトを得ナ。The above mixed resin was poured into this cylindrical mold 17 and heated to 80°C for 30 minutes.
By centrifugal molding for 0 minutes and further curing at 100°C for 8 hours, a seamless belt with a silicone powder agglomerated layer on the outer surface was obtained.
このベルトは厚さが０．６ｍ＋ａ，幅が４８０＋＋ｍ．
局長が４０７ｍｍ，硬度（Ｈｓ）が９０〜９５であり、
耐熱性も１５０〜１８０℃程度あり、定着ベルトとして
好適なものであった。This belt has a thickness of 0.6m+a and a width of 480++m.
The length is 407mm, the hardness (Hs) is 90-95,
The heat resistance was also about 150 to 180°C, making it suitable as a fixing belt.
（実施例３）
フェス状態のトレニース＃３０００ （東レ■製）に
シリコーン樹脂粉末として上記メチルシリコーンバウダ
を３０重量％の割合で混合し、さらに溶剤を加えて混合
樹脂としな。(Example 3) The above-mentioned methyl silicone powder was mixed as a silicone resin powder into TRENICE #3000 (manufactured by Toray ■) in a festival state at a ratio of 30% by weight, and a solvent was further added to form a mixed resin.
この混合樹脂１９０ｇを、実施例１と同様に形成したシ
リコーンゴム硬化層を形成した円筒型１７内に注入し、
同様に遠心成形して同様な定着用のシームレスベルトを
得た。このベルトは耐熱性が２５０℃であり、定着ベル
トとして好適なものであった。190 g of this mixed resin was poured into a cylindrical mold 17 in which a cured silicone rubber layer was formed in the same manner as in Example 1.
A similar seamless belt for fixing was obtained by centrifugal molding in the same manner. This belt had a heat resistance of 250° C. and was suitable as a fixing belt.
く発明の効果〉
以上説明したように本発明のシームレスベルトは、表面
に滑材粉末凝集層が遠心成形により一体成形されたもの
であり、簡易に低コストで製造でき、且つ層間の剥離の
心配もないものである。Effects of the Invention> As explained above, the seamless belt of the present invention has a lubricant powder agglomerated layer integrally molded on the surface by centrifugal molding, and can be manufactured simply and at low cost, and there is no need to worry about peeling between the layers. It's nothing.
第１図及び第２図は本発明のンームレスベルトの断面図
、第３図は本発明の実施例に用いた遠心成形装置を示す
断面図、第４図は複写機の概略図、第５図はロール定着
を示す説明図、第６図はベルト定着を示す説明図である
。
図 面 中、
１はペース樹脂、
２は滑材粉末凝劃Ｌ
２Ａはフッ素樹脂粉末凝集層、
３は導電性書一ボン凝集層である。
第１図
特許出
北辰工
代 理1 and 2 are cross-sectional views of the seamless belt of the present invention, FIG. 3 is a cross-sectional view showing a centrifugal forming apparatus used in an embodiment of the present invention, FIG. 4 is a schematic view of a copying machine, and FIG. FIG. 6 is an explanatory diagram showing roll fixing, and FIG. 6 is an explanatory diagram showing belt fixing. In the drawings, 1 is a paste resin, 2 is a lubricant powder agglomerated layer L, 2A is a fluororesin powder agglomerated layer, and 3 is a conductive bookmark agglomerated layer. Figure 1 Patent issued by Hokutatsu Kogyo representative
Claims (5)
及び揮発性溶剤を含有する混合樹脂を遠心成形してなる
シームレスベルトであって、その表面に滑材粉末凝集層
が形成されていることを特徴とするシームレスベルト。(1) A seamless belt made by centrifugally molding a mixed resin containing a thermosetting resin or elastomer, lubricant powder, and volatile solvent, with a lubricant powder agglomerated layer formed on its surface. Features a seamless belt.
化型の樹脂若しくはエラストマーがポリイミド樹脂３ポ
リアミドイミド樹脂３ポリベンズイミダゾール樹脂、高
硬度ポリウレタン又は耐熱性ポリウレタンであり、滑材
粉末がシリコーン樹脂粉末又はフッ素樹脂粉末であるシ
ームレスベルト。(2) In the seamless belt according to claim 1, the thermosetting resin or elastomer is polyimide resin 3 polyamideimide resin 3 polybenzimidazole resin, high hardness polyurethane or heat resistant polyurethane, and the lubricant powder is silicone resin powder or A seamless belt made of fluororesin powder.
樹脂が、ポリイミド樹脂、ポリアミドイミド樹脂又はポ
リベンズイミダゾール樹脂及び滑材粉末としてのフッ素
樹脂粉末の他、導電性カーボンを含有してなり、フッ素
樹脂粉末凝集層の内側に導電性カーボン凝集層が形成さ
れている静電記録用シームレスベルト。(3) In the seamless belt according to claim 1, the mixed resin contains conductive carbon in addition to a polyimide resin, a polyamideimide resin, or a polybenzimidazole resin and a fluororesin powder as a lubricant powder. A seamless belt for electrostatic recording in which a conductive carbon agglomeration layer is formed inside a powder aggregation layer.
化型の樹脂若しくはエラストマーがポリイミド樹脂、ポ
リアミドイミド樹脂、ポリベンズイミダゾール樹脂又は
耐熱性ポリウレタンであり、滑材粉末がシリコーン樹脂
粉末又はフッ素樹脂粉末である定着用シームレスベルト
。(4) In the seamless belt according to claim 1, the thermosetting resin or elastomer is polyimide resin, polyamideimide resin, polybenzimidazole resin, or heat-resistant polyurethane, and the lubricant powder is silicone resin powder or fluororesin powder. A seamless belt for fixing.
において、滑材粉末凝集層が溶融されて形成されている
シームレスベルト。(5) The seamless belt according to any one of claims 1 to 4, in which the lubricant powder agglomerated layer is formed by melting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22455888 | 1988-09-09 | ||
| JP63-224558 | 1988-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02231129A true JPH02231129A (en) | 1990-09-13 |
Family
ID=16815663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15665289A Pending JPH02231129A (en) | 1988-09-09 | 1989-06-21 | Seamless belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02231129A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0501738A2 (en) * | 1991-02-25 | 1992-09-02 | Xerox Corporation | Process for forming polymeric seamless belts and imaging members |
| JP2005139439A (en) * | 2003-10-15 | 2005-06-02 | Tokai Rubber Ind Ltd | Semiconductive seamless belt |
| JP2007140049A (en) * | 2005-11-17 | 2007-06-07 | Nitto Denko Corp | Polyimide belt and method for manufacturing the same |
| JP2008033281A (en) * | 2006-06-27 | 2008-02-14 | Synztec Co Ltd | Blade member and manufacturing method thereof |
| JP2008033282A (en) * | 2006-06-27 | 2008-02-14 | Synztec Co Ltd | Conductive blade member and manufacturing method thereof |
| JP2012068525A (en) * | 2010-09-24 | 2012-04-05 | Fuji Xerox Co Ltd | Intermediate transfer belt and image forming apparatus |
| US8971765B2 (en) | 2011-03-24 | 2015-03-03 | Fuji Xerox Co., Ltd. | Intermediate transfer member and method for manufacturing the same, intermediate transfer member unit, and image forming apparatus |
| JP2016042176A (en) * | 2014-08-15 | 2016-03-31 | 富士ゼロックス株式会社 | Tubular body, tubular body unit, intermediate transfer body, and image forming apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60214933A (en) * | 1984-04-11 | 1985-10-28 | Hitachi Cable Ltd | Manufacture of paper carrying belt |
| JPS61110519A (en) * | 1984-11-05 | 1986-05-28 | Daicel Chem Ind Ltd | Seamless belt containing impalpable powder |
| JPS61202811A (en) * | 1985-03-05 | 1986-09-08 | Daicel Chem Ind Ltd | Seamless belt containing fine particle |
-
1989
- 1989-06-21 JP JP15665289A patent/JPH02231129A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60214933A (en) * | 1984-04-11 | 1985-10-28 | Hitachi Cable Ltd | Manufacture of paper carrying belt |
| JPS61110519A (en) * | 1984-11-05 | 1986-05-28 | Daicel Chem Ind Ltd | Seamless belt containing impalpable powder |
| JPS61202811A (en) * | 1985-03-05 | 1986-09-08 | Daicel Chem Ind Ltd | Seamless belt containing fine particle |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0501738A2 (en) * | 1991-02-25 | 1992-09-02 | Xerox Corporation | Process for forming polymeric seamless belts and imaging members |
| JP2005139439A (en) * | 2003-10-15 | 2005-06-02 | Tokai Rubber Ind Ltd | Semiconductive seamless belt |
| JP2007140049A (en) * | 2005-11-17 | 2007-06-07 | Nitto Denko Corp | Polyimide belt and method for manufacturing the same |
| JP2008033281A (en) * | 2006-06-27 | 2008-02-14 | Synztec Co Ltd | Blade member and manufacturing method thereof |
| JP2008033282A (en) * | 2006-06-27 | 2008-02-14 | Synztec Co Ltd | Conductive blade member and manufacturing method thereof |
| JP2012068525A (en) * | 2010-09-24 | 2012-04-05 | Fuji Xerox Co Ltd | Intermediate transfer belt and image forming apparatus |
| US8971765B2 (en) | 2011-03-24 | 2015-03-03 | Fuji Xerox Co., Ltd. | Intermediate transfer member and method for manufacturing the same, intermediate transfer member unit, and image forming apparatus |
| JP2016042176A (en) * | 2014-08-15 | 2016-03-31 | 富士ゼロックス株式会社 | Tubular body, tubular body unit, intermediate transfer body, and image forming apparatus |
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