JP2011203390A - Sealing member for preventing leakage of powder, such as electrophotographic toner - Google Patents

Sealing member for preventing leakage of powder, such as electrophotographic toner Download PDF

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JP2011203390A
JP2011203390A JP2010068948A JP2010068948A JP2011203390A JP 2011203390 A JP2011203390 A JP 2011203390A JP 2010068948 A JP2010068948 A JP 2010068948A JP 2010068948 A JP2010068948 A JP 2010068948A JP 2011203390 A JP2011203390 A JP 2011203390A
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powder
fatty acid
sealing member
toner
lubricant
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JP5511461B2 (en
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Kazuo Fukui
和郎 福井
Susumu Shoji
進 庄司
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Shoji Susumu
Sanwa Techno Co Ltd
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Shoji Susumu
Sanwa Techno Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a sealing member for preventing leakage of powder, such as toner, used in an electrophotographic apparatus.SOLUTION: The sealing member 5 is a knitted or woven object which is stuck to the rotating shaft 3 of a rotary drum for a photoreceptor cleaning device or a developing device using the powder, such as toner, in an image processing device for the electrophotographic apparatus so as to regulate the flow of the powder, such as toner. In this case, solidified fatty acid salt lubricant 6a having malleability, lubricant 6a of fatty acid ester of monohydric alcohol being wax, or stearic acid salt lubricant 6b is rubbed and applied to the surfaces of the fibers of the knitted or woven sealing member 5 directly or indirectly, and then, the leakage of the powder, such as the electrophotographic toner, is prevented by the lubricant 6 which has the malleability and which is deposited and formed on the surfaces of the fibers in a film-like state.

Description

本発明は、電子写真における画像形成用のトナーなどの粉体がトナーなどの粉体を扱う感光体のクリーニング装置や現像装置などの処理装置の軸端部のシール部分から漏れ出すことを防止するシール材に関する。   The present invention prevents powder such as toner for image formation in electrophotography from leaking out from a seal portion at the shaft end of a processing device such as a cleaning device or developing device for a photosensitive member that handles powder such as toner. It relates to a sealing material.

従来、電子写真における画像形成用のトナーである粉体をシールするサイドシールすなわち感光体のクリーニング装置の回転軸の端部シールについては、クリーニング装置の端部のゴム製のクリーニングブレードのめくれ対策やトナーの漏れ防止対策として、あるいは感光体とシール材の摩擦熱対策として、シールすべき部材（以下、シールすべき部材を「シール部材」という。）へ潤滑剤の含浸や含有が行われている。また、電子写真における現像装置のサイドシールすなわち端部シールにおいては、漏れ防止および現像ローラとシール部材の間で両者のズレによる摩擦により発生する軋り音すなわち鳴きを防止する鳴き防止や、さらに、現像ローラの高速化に伴う熱発生の抑制ということで、シール部材に潤滑剤が塗布されたりあるいは含浸されている。   Conventionally, a side seal for sealing powder, which is a toner for image formation in electrophotography, that is, an end seal of a rotating shaft of a cleaning device for a photosensitive member, is a countermeasure against turning up of a rubber cleaning blade at the end of the cleaning device. As a measure against toner leakage or as a measure against frictional heat between the photosensitive member and the sealing material, a member to be sealed (hereinafter, the member to be sealed is referred to as a “seal member”) is impregnated with or contains a lubricant. . Further, in the side seal, that is, the end seal of the developing device in electrophotography, leakage prevention and squeal prevention that prevents squealing or squeal generated by friction between the developing roller and the seal member, and further, The lubricant is applied to or impregnated in the seal member because of the suppression of heat generation accompanying the increase in the speed of the developing roller.

一般的には、上記のような潤滑剤の使用は行わない方がシール部材にとって望ましいのであるが、近年のトナーの粒径の小粒化や、重合トナーの球形化や、現像速度の高速化に伴い、シール部材に潤滑剤の塗布や含浸が行われるようになってきている。さらに、使用する潤滑剤としてオイル、グリス、油脂などの他に、潤滑性の良好な微粒子の粉体が用いられるようになってきている。   In general, it is desirable for the seal member not to use the lubricant as described above. However, in recent years, the toner particle size has been reduced, the polymerization toner has a spherical shape, and the development speed has been increased. Along with this, application and impregnation of a lubricant have been performed on the seal member. In addition to oils, greases, fats and oils, fine powders having good lubricity have been used as lubricants to be used.

ところで、従来の技術において、シール部材として発泡体、フェルト、織物などの素材が使用されている。これらの素材からなるシール部材へ、オイル、グリス、油脂などの液状の潤滑剤を含浸もしくは塗布する方法として、これらの液状の潤滑剤を予めシール部材に適用するとき、シール部材の接着材として装置の端部や軸部に貼付した両面テープに、適用した液状の潤滑剤が含浸することとなる。この両面テープへ液状の潤滑剤の含浸の結果、シール部材と装置の取付け面における両面テープの接着力が低下し、装置の回転時にシール部材の剥がれが生じてしまう。そこで両面テープの接着性に影響を与えないような工夫が施されている。例えば、装置の組立て直前に潤滑剤を所定の量だけ塗布するようにするとか、シール部材を取付け面に貼付した後に、潤滑剤を塗布するようにするなど、装置の組立て時に工夫がされている。このために、シール部材自体に液状の潤滑剤を含侵したりおよび塗布したりするやり方は、量産性に適しておらず、組立て時の作業工程数が増すこととなる。その結果、装置の製造コストが上昇し、かつ、製品コストが上昇するという問題が生じている。   In the prior art, materials such as foams, felts, and fabrics are used as the sealing members. As a method of impregnating or applying a liquid lubricant such as oil, grease, fats and oils to a seal member made of these materials, when these liquid lubricants are applied to the seal member in advance, an apparatus as an adhesive for the seal member The applied liquid lubricant is impregnated into the double-sided tape affixed to the end portion or shaft portion. As a result of impregnating the double-sided tape with the liquid lubricant, the adhesive force of the double-sided tape on the sealing member and the mounting surface of the apparatus is reduced, and the sealing member is peeled off when the apparatus is rotated. Therefore, a device has been devised so as not to affect the adhesiveness of the double-sided tape. For example, a device is devised at the time of assembling the device, such as applying a predetermined amount of lubricant immediately before assembling the device, or applying a lubricant after applying a seal member to the mounting surface. . For this reason, the method of impregnating and applying the liquid lubricant to the seal member itself is not suitable for mass production and increases the number of work steps at the time of assembly. As a result, there are problems that the manufacturing cost of the apparatus increases and the product cost increases.

一方、粉体の潤滑剤を塗布したシール部材が出願されて開示されている（例えば、特許文献１、特許文献２、特許文献３、特許文献４参照。）。これらの粉体の潤滑剤を用いたシール部材の場合は、粉体が微粉であるために、塗布したシール部材によっては、潤滑剤の粉体が当接している部材に容易に移動し、また、粉体の流れを規制するシール部材の場合は流れに沿って微粉である潤滑剤がシール部材の外部へ出て行き、粉体を担侍する担持体上に粉体が筋状に形成されることとなる。これらの結果、長期間にわたるシール効果が低下し、さらに潤滑剤である粉体が担持体の端部に溜まって２次弊害が発生する。さらに、液状の潤滑剤においても、塗布量が過剰である場合には同様なことが言える。このために制御して塗布しなければならず、生産性の低下となっている。   On the other hand, a sealing member coated with a powder lubricant has been filed and disclosed (see, for example, Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4). In the case of seal members using these powder lubricants, since the powder is fine, depending on the applied seal member, it can easily move to the member with which the lubricant powder is in contact. In the case of a seal member that regulates the flow of powder, fine powder lubricant goes out of the seal member along the flow, and the powder is formed in a streak shape on the carrier that carries the powder. The Rukoto. As a result, the sealing effect over a long period of time decreases, and further, powder as a lubricant accumulates at the end of the carrier, causing secondary adverse effects. Furthermore, the same can be said for liquid lubricants when the coating amount is excessive. For this reason, it must be controlled and applied, resulting in reduced productivity.

さらに、織物もしくは編物からなるシール部材として、フッ素繊維もしくは表面処理を施した繊維からなる滑りの良い糸を用いることで、シール材の摺動性を良好とし、しかもシール性を良好とした技術が開示されている（例えば、特許文献５、特許文献６、特許文献７参照。）。しかし、これらの繊維は素材的に高価であるため、コスト的には不利な結果となっている。   Furthermore, as a sealing member made of woven fabric or knitted fabric, there is a technique for improving the slidability of the sealing material and improving the sealing performance by using a slippery thread made of fluorine fibers or surface-treated fibers. (For example, refer to Patent Document 5, Patent Document 6, and Patent Document 7.) However, since these fibers are expensive in terms of material, the cost is disadvantageous.

特開平８−１２３２７９号公報JP-A-8-123279 特開平９−２９７５１３号公報JP-A-9-297513 特開２００１−２２８７０９号公報JP 2001-228709 A 特開平２００５−１８１７１３号公報Japanese Patent Application Laid-Open No. 2005-181713 特開平１１−１２５７１８号公報JP-A-11-125718 実用新案登録第３０６５１３６号公報Utility Model Registration No. 3065136 実開平６−１６９６３号公報Japanese Utility Model Publication No. 6-16963

本発明が解決しようとする課題は、電子写真のトナーなどの粉体の漏れ出しを防止するために、潤滑剤を塗布又は含浸した編物あるいは織物からなるシール部材において、潤滑剤がシール部材から容易に移動したり、シール部材の外へ出て行き、電子写真のトナーなどの粉体がその担持体上に筋状に形成されたり、あるいは担持体の端部に溜まったりすることのないように、電子写真のトナーなどの粉体の漏れ出しを防止することができるシール部材を提供することである。   SUMMARY OF THE INVENTION The problem to be solved by the present invention is that a lubricant can be easily removed from a seal member in a knitted or woven fabric coated or impregnated with a lubricant in order to prevent leakage of powder such as toner for electrophotography. So that powders such as electrophotographic toner are not formed in a streak shape on the carrier or collected at the end of the carrier. An object of the present invention is to provide a sealing member that can prevent leakage of powder such as toner for electrophotography.

上記の課題を解決するための本発明は、請求項１の手段では、電子写真装置の画像処理装置のトナーなどの粉体を扱う感光体のクリーニング装置や現像装置などの処理装置の回転体である粉体担持体の端部でトナーなどの粉体の流れを規制する編物もしくは織物からなるシール部材におけるもので、展延性を有する固形化された脂肪酸塩もしくはワックスである一価アルコールの脂肪酸エステルからなる潤滑剤を直接もしくは間接的に編物もしくは織物からなるシール部材の繊維の表面に摺り付け、この繊維の表面に展延性を有する固形化された脂肪酸塩もしくは一価アルコールの脂肪酸エステルからなるワックスを皮膜状に付着形成していることを特徴とする電子写真のトナーなどの粉体の漏れ出しを防止するシール部材である。   According to a first aspect of the present invention, there is provided a rotating body of a processing device such as a cleaning device for a photosensitive member or a developing device for handling powder such as toner in an image processing device of an electrophotographic apparatus. In a sealing member made of a knitted or woven fabric that regulates the flow of powder such as toner at the end of a certain powder carrier, a fatty acid ester of a monohydric alcohol that is a solidified fatty acid salt or wax having a spreadability A wax comprising a solidified fatty acid salt or a fatty acid ester of a monohydric alcohol, which is directly or indirectly slid onto the surface of a fiber of a sealing member made of knitted fabric or woven fabric, and has a spreading property on the surface of the fiber. Is a sealing member that prevents leakage of powder such as toner for electrophotography.

上記の手段の発明では、繊維の表面に摺り付けた潤滑剤は展延性を有する固形化された脂肪酸塩もしくはワックスである一価アルコールの脂肪酸エステルであるので、液体状の潤滑剤よりも取り扱いが容易である。また、基本的には摺り付けた箇所のみに展延性の効果を付与して皮膜を形成することができ、摺り付けた箇所以外の箇所に潤滑剤が含侵することがない。したがって、シール部材を貼付するための貼付用に両面テープを用いた場合、この両面テープの接着面へ摺り付けた潤滑剤が含浸する影響もなく、この接着面が劣化する使用上の問題を生じない。このために、シール部材を用いた円筒状の回転体の組立および生産の効率の向上を図ることができる。   In the invention of the above means, since the lubricant slid onto the surface of the fiber is a fatty acid ester of monohydric alcohol which is a solidified fatty acid salt or wax having spreading properties, it is easier to handle than a liquid lubricant. Easy. Further, basically, a film can be formed by imparting a spreading effect only to the rubbed portion, and the lubricant is not impregnated in a portion other than the rubbed portion. Therefore, when a double-sided tape is used for sticking to attach a seal member, there is no influence of the lubricant that is slid onto the adhesive surface of the double-sided tape, causing a problem in use that deteriorates the adhesive surface. Absent. For this reason, it is possible to improve the assembly and production efficiency of the cylindrical rotating body using the seal member.

請求項２の手段では、展延性を有する固形化された脂肪酸塩は脂肪酸ナトリウムからなる石鹸またはナトリウムやカリウム以外の金属の脂肪酸塩である金属石鹸であり、ワックスである一価アルコールの脂肪酸エステルは天然ワックスまたは合成ワックスであり、これらワックスの融点は５０℃以上であることを特徴とする請求項１の手段の電子写真のトナーなどの粉体の漏れ出しを防止するシール部材である。   In the means of claim 2, the spreadable solidified fatty acid salt is a soap made of sodium fatty acid or a metal soap that is a fatty acid salt of a metal other than sodium or potassium, and the fatty acid ester of a monohydric alcohol that is a wax is The sealing member for preventing leakage of powders such as electrophotographic toner according to claim 1, wherein the wax is natural wax or synthetic wax, and the melting point of these waxes is 50 ° C or higher.

請求項３の手段では、脂肪酸塩は脂肪酸ナトリウムからなる石鹸またはナトリウムやカリウム以外の金属の脂肪酸塩である金属石鹸もしくは天然ワックスまたは合成ワックスは編物もしくは織物からなるシール部材の繊維の表面に直接的に摺り付けて形成し、その摺り付ける方向を、粉体の漏れ防止を行う粉体の流れを規制する方向として皮膜状に付着することにより形成したことを特徴とする請求項２の手段の電子写真のトナーなどの粉体の漏れ出しを防止するシール部材である。   According to the means of claim 3, the fatty acid salt is a soap made of sodium fatty acid, or a metal soap, a natural wax or a synthetic wax which is a fatty acid salt of a metal other than sodium or potassium, directly on the fiber surface of the sealing member made of knitted fabric or woven fabric. 3. The electron of the means according to claim 2, characterized in that it is formed by adhering in the form of a film as a direction for regulating the flow of powder for preventing leakage of powder. It is a sealing member that prevents leakage of powder such as toner in a photograph.

請求項４の手段では、脂肪酸塩は脂肪酸ナトリウムからなる石鹸またはナトリウムやカリウム以外の金属の脂肪酸塩である金属石鹸もしくは天然ワックスまたは合成ワックスは編物もしくは織物からなるシール部材の繊維の表面に間接的に摺り付けて形成し、その摺り付ける方向を、粉体の漏れ防止を行う粉体の流れを規制する方向として皮膜状に付着することにより形成したことを特徴とする請求項２の手段の電子写真のトナーなどの粉体の漏れ出しを防止するシール部材である。   According to the method of claim 4, the fatty acid salt is a soap made of sodium fatty acid, or a metal soap, a natural wax or a synthetic wax which is a fatty acid salt of a metal other than sodium or potassium, and is indirectly applied to the surface of the fiber of the sealing member made of knitted fabric or woven fabric. 3. The electron of the means according to claim 2, characterized in that it is formed by adhering in the form of a film as a direction for regulating the flow of powder for preventing leakage of powder. It is a sealing member that prevents leakage of powder such as toner in a photograph.

請求項５の手段では、粉体の漏れ防止を行う粉体の流れを規制する方向に摺り付ける方向を向けて皮膜状に付着することにより形成したシール部材は、織物または編物から所望の形状および打抜き角度として形成してローラ表面あるいは回転ドラムの回転軸の所定の取付け面に設けられていることを特徴とする請求項３または請求項４の手段の電子写真のトナーなどの粉体の漏れ出しを防止するシール部材である。   In the means of claim 5, the seal member formed by adhering in the form of a film with the direction of sliding in the direction of regulating the flow of the powder for preventing the leakage of the powder from the woven fabric or the knitted fabric has a desired shape and 5. Leakage of powder such as electrophotographic toner according to claim 3 or 4, characterized in that it is formed as a punching angle and is provided on a predetermined surface of a roller surface or a rotating shaft of a rotating drum. This is a seal member for preventing the above.

粉体の潤滑材の場合、当接した円筒状の回転体に粉体が取られていくのに対し、本発明の手段における潤滑剤は、繊維の表面に直接的あるいは間接的に摺り付けにより皮膜状に形成されるので、回転体に潤滑剤が取られ難く、また粉体のようにシール部材の流れ方向に出て行くこともない。さらに、潤滑剤は粉体ではなく、繊維の表面に摺り付けて皮膜状に形成されているので、仮に回転体に潤滑剤が取られて転移したとしても、回転体に潤滑剤の皮膜が形成されることとなるので、回転体とシール部材の摺動面では、潤滑作用において格別に変化のないが状態が形成される。   In the case of a powder lubricant, the powder is taken by the cylindrical rotating body that is in contact, whereas the lubricant in the means of the present invention is directly or indirectly slid onto the fiber surface. Since it is formed in a film shape, it is difficult for the rotating body to take the lubricant, and it does not go out in the flow direction of the sealing member like powder. Furthermore, since the lubricant is not a powder but is slid onto the surface of the fiber to form a film, even if the lubricant is taken and transferred to the rotating body, a lubricant film is formed on the rotating body. Therefore, the sliding surface between the rotating body and the seal member forms a state with no significant change in the lubricating action.

初期の粉体担持体（ローラ）の周速度（表面速度）とシール部材との当接部の温度上昇の関係を示すグラフである。It is a graph which shows the relationship between the peripheral speed (surface speed) of an initial stage powder carrier (roller), and the temperature rise of the contact part with a sealing member. 回転するローラの温度上昇と時間との関係を示すグラフである。It is a graph which shows the relationship between the temperature rise of a rotating roller, and time. 本発明の、現像装置などのドラムの軸端部に貼付したトナーなどの粉体の流れを規制するシール部材の模式的に示す側面図である。FIG. 3 is a side view schematically showing a seal member for regulating the flow of powder such as toner stuck to the end of a shaft of a drum of a developing device of the present invention. 本発明の、直接的に摺り付ける方式の石鹸、金属石鹸、ワックスの固形ブロックとシール部材との関係を模式的に示す側面図で、（ａ）は円筒体ブロックからなる固形ブロックとシール部材、（ｂ）は直方体ブロックからなる固形ブロックとシール部材を示す。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view schematically showing the relationship between a solid block of soap, metal soap, wax and a seal member of the present invention, (a) is a solid block consisting of a cylindrical block and a seal member; (B) shows the solid block which consists of a rectangular parallelepiped block, and a sealing member. 本発明の、間接的に摺り付ける方式の固形ブロックと摺り付け用のローラもしくは固形ブロックとシール部材との関係を模式的に示す側面図で、（ａ）は直方体ブロックからなる固形ブロックと摺り付け用のブラシローラとシール部材、（ｂ）は直方体からなるブロックからなる固形ブロックと摺り付け用の発泡体ローラとシール部材を示す。BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows typically the relationship between the solid block of the method of sliding indirectly and the roller for sliding, or a solid block, and a sealing member of this invention, (a) is sliding with the solid block which consists of a rectangular parallelepiped block (B) shows the solid block which consists of a block which consists of a rectangular parallelepiped, the foam roller for sliding, and a sealing member. 従来の、現像装置などのドラムの軸端部に貼付したトナーなどの粉体の流れを規制するシール部材を模式的に示す側面図である。FIG. 7 is a side view schematically showing a conventional seal member that regulates the flow of powder such as toner stuck to the shaft end of a drum of a developing device or the like.

先ず、電子写真装置の画像処理装置のトナーの担持体であるローラ１におけるトナーなどの粉体の流れを規制するシール部材５において、図６に示す従来技術の装置のローラ１では、粉体である潤滑剤７が、シール部材５とトナー担持体であるローラ１の間で、ローラ表面２で内側端部５ａに流れ出て、粉体である潤滑剤７がシール部材５の内側端部５ａのローラ表面２に筋状に露出して形成されている。これに対して、図３に示す本発明技術のローラ１では、展延性の脂肪酸塩または一価アルコールの脂肪酸エステルからなる潤滑剤６ａが、シール部材５の表面に、摺り付けられて形成されている。この展延性を有する固形石鹸である脂肪酸塩または一価アルコールの脂肪酸エステルからなる潤滑剤６ａを摺り付けて被覆した状態からなるシール部材５では、これらの脂肪酸塩または一価アルコールの脂肪酸エステルからなる潤滑剤６ａが紛状となってローラ表面２に筋状に露出することはなく、シール部材５とローラ表面２の間に極めて良好な状態で保持されている。この場合の摺り付け荷重は、低荷重である４ｇ／ｃｍ2であることが確認されており、この低荷重において十分に効果があり、もちろん、それ以上の摺り付け荷重においても効果があることが確認されている。 First, in the seal member 5 that regulates the flow of powder such as toner in the roller 1 that is a toner carrier of the image processing apparatus of the electrophotographic apparatus, the roller 1 of the prior art apparatus shown in FIG. A certain lubricant 7 flows between the seal member 5 and the roller 1 as a toner carrier on the roller surface 2 to the inner end 5 a, and the lubricant 7, which is a powder, flows into the inner end 5 a of the seal member 5. The roller surface 2 is formed in a streak-like manner. On the other hand, in the roller 1 of the technology of the present invention shown in FIG. 3, the lubricant 6 a made of a spreadable fatty acid salt or a fatty acid ester of a monohydric alcohol is slid onto the surface of the seal member 5. Yes. The seal member 5 formed by sliding and covering the fatty acid salt or the fatty acid ester of a monohydric alcohol, which is a solid soap having a spreadability, is made of these fatty acid salt or a fatty acid ester of a monohydric alcohol. The lubricant 6a does not become a powder and is not exposed in a streak form on the roller surface 2, and is held between the seal member 5 and the roller surface 2 in a very good state. The sliding load in this case has been confirmed to be 4 g / cm 2 , which is a low load, and is sufficiently effective at this low load. Of course, it can be effective even at higher sliding loads. It has been confirmed.

上記した本発明の展延性の脂肪酸塩または一価アルコールの脂肪酸エステルからなる潤滑剤６ａがシール部材５の表面に摺り付けられて形成されている場合の方式としては、直接的に潤滑剤６ａをシール部材５に摺り付ける図４に示す方式とすることができる。この方式では、石鹸、金属石鹸、ワックスなどの固形ブロック８と織物もしくは編物からなるシール部材５との間の摺り付け状態を模式的に側面図で示している。図４の（ａ）は石鹸、金属石鹸、ワックスなどの円筒体ブロック８ａと織物もしくは編物からなるシール部材５との摺り付け状態の関係を模式的に示しており、図４の（ｂ）は石鹸、金属石鹸、ワックスなどの直方体ブロック８ｂと織物もしくは編物からなるシール部材５との摺り付け状態の関係を模式的に示している。   As a system in which the lubricant 6a composed of the above-described malleable fatty acid salt or monohydric alcohol fatty acid ester of the present invention is formed by sliding on the surface of the seal member 5, the lubricant 6a is directly used. It can be set as the system shown in FIG. In this system, the sliding state between the solid block 8 such as soap, metal soap, and wax and the sealing member 5 made of woven fabric or knitted fabric is schematically shown in a side view. FIG. 4A schematically shows the relationship between the sliding state of the cylindrical block 8a such as soap, metal soap, wax, etc. and the sealing member 5 made of woven fabric or knitted fabric, and FIG. The relationship of the sliding state of the rectangular parallelepiped block 8b, such as soap, metal soap, and wax, and the sealing member 5 which consists of a textile fabric or a knitted fabric is shown typically.

さらに本発明の潤滑剤６の摺り付けられて形成されている場合の他の方式としては、間接的に潤滑剤６をシール部材５に摺り付ける図５に示す方式とすることができる。この方式では、石鹸、金属石鹸、ワックスなどの固形ブロック８と織物もしくは編物からなるシール部材５との間の摺り付け状態を模式的に側面図で示している。図５の（ａ）は石鹸、金属石鹸、ワックスなどの直方体ブロック８ｂである固形ブロック８と摺り付け用のブラシローラ１ａと織物もしくは編物からなるシール部材５との摺り付け状態の関係を模式的に示しており、図５の（ｂ）は石鹸、金属石鹸、ワックスなどの直方体ブロック８ｂである固形ブロック８と摺り付け用の発泡体ローラ１ｂと織物もしくは編物からなるシール部材５との摺り付け状態の関係を模式的に示している。   Furthermore, as another system when the lubricant 6 of the present invention is rubbed and formed, the system shown in FIG. 5 can be used in which the lubricant 6 is indirectly slid onto the seal member 5. In this system, the sliding state between the solid block 8 such as soap, metal soap, and wax and the sealing member 5 made of woven fabric or knitted fabric is schematically shown in a side view. FIG. 5A schematically shows the relationship between the solid block 8 which is a rectangular parallelepiped block 8b such as soap, metal soap and wax, the brush roller 1a for rubbing, and the sealing member 5 made of woven fabric or knitted fabric. FIG. 5 (b) shows the sliding of the solid block 8 which is a rectangular parallelepiped block 8b such as soap, metal soap, wax, etc., the foam roller 1b for sliding, and the sealing member 5 made of woven or knitted fabric. The relationship of a state is shown typically.

上記した図３に示す本発明技術のローラ１では、シール部材５をパイル織から形成し、ギャップ１．５ｍｍとしたシール部材５をシール部材Ａとする。このシール部材Ａのみからなるシもの（以下、「シール部材Ａ」という。）と、シール部材Ａに粉体のステアリン酸亜鉛の潤滑剤６ａを潤滑剤６として適用したもの（以下、「シール部材Ａ＋粉末状ＳｔＺｎ」という。）と、本発明のシール部材Ａの繊維に摺り付けた金属石鹸であるステアリン酸亜鉛の潤滑剤６ｂを潤滑剤６として適用したもの（以下、「シール部材Ａ＋ＳｔＺｎ（本発明）」という。）と、本発明のシール部材Ａに固形石鹸である脂肪酸ナトリウムまたは一価アルコールの脂肪酸エステルからなる潤滑剤６ａを摺り付けて適用したもの（以下、「シール部材Ａ＋脂肪酸Ｎａ（本発明）」という。）とを用いて、初期の粉体の担持体のローラ表面２の周速度とこれらのシール部材５の当接部の温度上昇の関係をみて、これらを図１に示した。これはトナーである粉体の担持体となるローラ表面２の周速度を１２５〜２９０ｍｍ／ｓに変化させ、初期レベルのシール部材５の当接位置におけるローラ表面２の温度を測定したもので、図１に示すように、「シール部材Ａ」のみからなるシール部材に比較して、粉体の潤滑剤７を塗布した「シール部材Ａ＋粉末状ＳｔＺｎ」と、本発明の潤滑剤６である脂肪酸塩の潤滑剤６ａを摺り付けた繊維からなる「シール部材Ａ＋脂肪酸Ｎａ（本発明）」および本発明の潤滑剤６であるステアリン酸亜鉛の潤滑剤６ｂを摺り付けた「シール部材Ａ＋ＳｔＺｎ（本発明）」の３種のシール部材５は、ローラ１との摩擦による温度上昇が共に同等程度に軽減されていることが判明した。   In the above-described roller 1 of the present invention shown in FIG. A seal made only of the seal member A (hereinafter referred to as “seal member A”), and a seal member A in which a powdered zinc stearate lubricant 6a is applied as the lubricant 6 (hereinafter referred to as “seal member”). And a lubricant 6b of zinc stearate, which is a metal soap slid onto the fiber of the seal member A of the present invention (hereinafter referred to as "seal member A + StZn" (hereinafter referred to as "seal member A + StZn"). Invention))) and a lubricant 6a made of fatty acid sodium, which is a solid soap, or a fatty acid ester of a monohydric alcohol, applied to the sealing member A of the present invention (hereinafter referred to as "sealing member A + fatty acid Na ( In the present invention), the relationship between the peripheral speed of the roller surface 2 of the initial powder carrier and the temperature rise of the abutting portions of these seal members 5 is used. It is shown in Figure 1. This is a measurement of the temperature of the roller surface 2 at the contact position of the seal member 5 at the initial level by changing the peripheral speed of the roller surface 2 serving as a powder carrier as a toner to 125 to 290 mm / s. As shown in FIG. 1, “seal member A + powdered StZn” coated with powder lubricant 7 and fatty acid which is lubricant 6 of the present invention, as compared to a seal member consisting only of “seal member A”. “Seal member A + StZn (invention)” rubbed with “seal member A + fatty acid Na (invention)” made of fibers rubbed with salt lubricant 6a and zinc stearate lubricant 6b, which is lubricant 6 of the invention. It was found that the three types of seal members 5 of “)” were all equally reduced in temperature rise due to friction with the roller 1.

さらに、シール部材５をパイル織物から形成し、ギャップ１．５ｍｍとしたシール部材５をシール部材Ｂとし、ローラの表面の周速度を２５０ｍｍ／ｓとする。このシール部材Ｂのみからなるもの（以下、「シール部材Ｂ」という。）と、シール部材Ｂにフッ素系の粉体の潤滑剤７を適用したもの（以下、「シール部材Ｂ＋フッ素系潤滑剤（粉体）」という。）と、本発明のシール部材Ｂの繊維に摺り付けた固形石鹸である脂肪酸ナトリウムを適用した潤滑剤６ａ（以下、「シール部材Ｂ＋脂肪酸Ｎａ（本発明）」という。）とを用いて、時間と温度上昇の関係をみて、これらを図２に示した。これらは、摩擦によるシール部材５の経時変化を示したもので、その結果、図２に示すように、「シール部材Ｂ」のみからなるシール部材は１０分で９℃に上昇し、「シール部材Ｂ＋フッ素系潤滑剤（粉体）」は５分後と３０分後の２箇所に変曲点を有しており、このものは摩擦により表面温度の上昇の変化がみられ、このことから粉体がシール部材５の表面より出て行くことが確認された。これに対して、本発明の「シール部材Ｂ＋脂肪酸Ｎａ（本発明）」である脂肪酸ナトリウムの潤滑剤６ａを繊維の表面に摺り付けたものは、潤滑剤６ａがシール部材５以外の箇所に出て行くことは無く、変曲点も無く安定しており、かつ、潤滑剤を塗布していない「シール部材Ｂ」のみからなるシール部材と同じ挙動を示しながら、表面温度のみは最大で４．５℃と大幅に低減させていることが判明した。   Further, the seal member 5 is formed of a pile fabric, the seal member 5 having a gap of 1.5 mm is set as a seal member B, and the peripheral speed of the roller surface is set to 250 mm / s. The seal member B only (hereinafter referred to as “seal member B”) and the seal member B to which a fluorine-based powder lubricant 7 is applied (hereinafter referred to as “seal member B + fluorine-based lubricant ( And a lubricant 6a (hereinafter referred to as "seal member B + fatty acid Na (present invention)") using fatty acid sodium, which is a solid soap rubbed onto the fiber of the seal member B of the present invention. The relationship between time and temperature rise was observed using and and these are shown in FIG. These show changes with time of the seal member 5 due to friction. As a result, as shown in FIG. 2, the seal member consisting only of “seal member B” rises to 9 ° C. in 10 minutes. “B + Fluorine-based lubricant (powder)” has inflection points at two locations after 5 minutes and 30 minutes, and this shows a change in the surface temperature due to friction. It was confirmed that the body came out from the surface of the seal member 5. On the other hand, when the lubricant 6a of fatty acid sodium, which is “seal member B + fatty acid Na (present invention)” of the present invention, is slid onto the surface of the fiber, the lubricant 6a comes out at a place other than the seal member 5. It is stable without any inflection point, and exhibits the same behavior as a seal member consisting only of “seal member B” without applying a lubricant, but only the surface temperature is 4. It was found that the temperature was significantly reduced to 5 ° C.

次に、本発明の織物の繊維をレーヨンとしてパイル織物から形成したシール部材５において、織物の繊維のレーヨンのみからなるシール部材５と、レーヨンからなるシール部材５と粉体の潤滑剤７としてステアリン酸亜鉛を適用したものと、本発明のレーヨンからなるシール部材５と繊維に摺り付けた潤滑剤６としての金属石鹸であるステアリン酸亜鉛の潤滑剤６ｂを適用したものと、本発明のレーヨンからなるシール部材と繊維に摺り付けた潤滑剤６としての固形石鹸である脂肪酸ナトリウムを潤滑剤６ａとして適用したものを、電子写真装置の画像処理装置における粉体担持体である現像ゴムローラであるローラ１の端部シールに適用し、このローラ１とシール部材５との間の摩擦による軋み音である鳴きを試験した。この場合シール部材５のローラ１は１０〜３００回転／分とした。したがってその際のローラ表面２の速度は８．３８〜２５１．３３ｍｍ／ｓであった。この時のローラ１に対する圧接荷重は７３５ｇ／ｃｍ2であった。この鳴きの試験結果を表１に示す。 Next, in the seal member 5 formed from a pile fabric using the fibers of the fabric of the present invention as rayon, the seal member 5 made only of rayon of the fabric fibers, the seal member 5 made of rayon, and stearin as a powder lubricant 7 are used. From the application of zinc acid, the application of the seal member 5 made of the rayon of the present invention and the lubricant 6b of zinc stearate, which is a metal soap as the lubricant 6 slid onto the fiber, and the rayon of the present invention A roller 1 which is a developing rubber roller which is a powder carrier in an image processing apparatus of an electrophotographic apparatus, in which fatty acid sodium, which is a solid soap as a lubricant 6 slid onto a fiber, is applied as a lubricant 6a. The squeak which is a squeak due to friction between the roller 1 and the seal member 5 was tested. In this case, the roller 1 of the seal member 5 was set to 10 to 300 rotations / minute. Therefore, the speed of the roller surface 2 at that time was 8.38 to 251.33 mm / s. The pressure load on the roller 1 at this time was 735 g / cm 2 . The test results of this squeal are shown in Table 1.

Figure 2011203390
Figure 2011203390

上記した鳴きの試験結果の表１によると、パイル織物が、レーヨンのみの場合は、ローラ１の１０〜８０回転／分で、摩擦による軋み音である鳴きが生じて×であった。しかし、１００〜３００回転／分で、摩擦による軋み音である鳴きは生じなかった。一方、レーヨンからなるシール部材１と粉体の潤滑剤７としてステアリン酸亜鉛を適用したものと、本発明のレーヨンからなるシール部材５と繊維に摺り付けた潤滑剤として金属石鹸であるステアリン酸亜鉛の潤滑剤６ｂを適用したものと、本発明のレーヨンからなるシール部材５と繊維に摺り付けた潤滑剤としての固形石鹸である脂肪酸ナトリウムの潤滑剤６ａを適用したものは、いずれのものも１０〜３００回転／分の全ての範囲で摩擦による軋み音である鳴きは生じなかった。   According to Table 1 of the squeal test results described above, when the pile fabric was only rayon, the squeak which was a squeak due to friction was generated at 10 to 80 revolutions / minute of the roller 1 and was x. However, at 100 to 300 revolutions / minute, no squeak which was a squeak due to friction occurred. On the other hand, a seal member 1 made of rayon and zinc stearate applied as a powder lubricant 7, and a zinc stearate which is a metal soap as a lubricant slid onto the seal member 5 and fiber of the present invention. 10 to which the lubricant 6b of the present invention is applied, and the fatty acid sodium lubricant 6a which is a solid soap as a lubricant rubbed onto the fiber and the sealing member 5 made of rayon of the present invention are applied. There was no squeak as a squeak due to friction in the entire range of ˜300 rpm.

請求項３の手段の実施の形態では、図４の（ａ）に示すように、脂肪酸塩は脂肪酸ナトリウムからなる石鹸またはナトリウムやカリウム以外の金属の脂肪酸塩である金属石鹸もしくは天然ワックスまたは合成ワックスからなる石鹸や金属石鹸やワックスの円筒体ブロック８ａを直接的に編物もしくは織物からなるシール部材５に摺り付ける際に、あるいは、図４の（ｂ）に示すように、石鹸や金属石鹸やワックスからなる直方体ブロック８ｂを直接的に編物もしくは織物からなるシール部材５の繊維の表面に直接的に摺り付ける際に、その摺り付けの方向を、粉体の漏れ防止を行う粉体の流れを規制する方向として、これらのシール部材５にシール性を付与している。さらに、これらの粉体の漏れ防止を行う粉体の流れを規制する方向に摺り付け方向を向けて皮膜状に付着することにより形成した織物または編物からなるシール部材５は、請求項５の実施の形態として、織物または編物を所望の形状および打抜き角度として形成し、これらをローラ表面２あるいは回転ドラムの回転軸３の所定の取付け面に設けている。   In an embodiment of the means of claim 3, as shown in FIG. 4 (a), the fatty acid salt is a soap made of sodium fatty acid, or a metal soap, natural wax or synthetic wax which is a fatty acid salt of a metal other than sodium or potassium. When the cylindrical block 8a made of soap, metal soap or wax is directly slid onto the seal member 5 made of knitted fabric or woven fabric, or as shown in FIG. 4B, soap, metal soap or wax When the rectangular parallelepiped block 8b is directly slid onto the fiber surface of the seal member 5 made of knitted fabric or woven fabric, the direction of the slidability is regulated, and the flow of powder for preventing powder leakage is regulated. The sealing property is given to these sealing members 5 as the direction to perform. Further, a sealing member 5 made of a woven fabric or a knitted fabric formed by adhering in the form of a film with a sliding direction in a direction regulating the flow of the powder for preventing leakage of these powders, As a form, a woven fabric or a knitted fabric is formed in a desired shape and punching angle, and these are provided on a predetermined mounting surface of the roller surface 2 or the rotating shaft 3 of the rotating drum.

請求項４の手段の実施の形態では、図５の（ａ）に示すように、石鹸や金属石鹸やワックスからなる直方体ブロック８ｂである固形ブロック８を用いて摺り付け用のブラシローラ１ａに間接的に石鹸や金属石鹸やワックスを摺り付けて移し、さらに、このブラシローラ１ａを織物や編物からなるシール部材５に石鹸や金属石鹸やワックスを間接的に摺り付けてるものであり、あるいは、図５の（ｂ）に示すように、石鹸や金属石鹸やワックスからなる直方体ブロック８ｂである固形のブロック８を用いて摺り付け用の発泡体ローラ１ｂに間接的に石鹸や金属石鹸やワックスを摺り付けて移し、さらに、この発泡体ローラ１ｂから織物や編物からなるシール部材５に石鹸や金属石鹸やワックスを間接的に摺り付けるものであり、その摺り付けの方向を、粉体の漏れ防止を行う粉体の流れを規制する方向として皮膜状に付着することによりシール部材５とし、さらに、これらの場合においても、粉体の漏れ防止を行う粉体の流れを規制する方向に摺り付ける方向を向けて皮膜状に付着することにより形成した織物または編物からなるシール部材５は、請求項５の実施の形態として、織物または編物を所望の形状および打抜き角度として形成し、これらをローラ表面２あるいは回転ドラムの回転軸３の所定の取付け面に設けている。   In the embodiment of the means of claim 4, as shown in FIG. 5 (a), the solid block 8 which is a rectangular parallelepiped block 8b made of soap, metal soap or wax is used to indirectly apply to the brush roller 1a for rubbing. In addition, the soap roller, the metal soap, and the wax are rubbed and transferred, and the brush roller 1a is indirectly rubbed with the soap, the metal soap, and the wax on the sealing member 5 made of a woven fabric or a knitted fabric. 5 (b), the soap, metal soap or wax is slid indirectly onto the foam roller 1b for rubbing using the solid block 8 which is a rectangular parallelepiped block 8b made of soap, metal soap or wax. Furthermore, soap, metal soap or wax is slid indirectly from the foam roller 1b to the sealing member 5 made of woven fabric or knitted fabric. The seal member 5 is attached in the form of a film as a direction for regulating the flow of powder for preventing powder leakage, and also in these cases, the flow of powder for preventing powder leakage The sealing member 5 made of a woven fabric or a knitted fabric formed by adhering in the form of a film with the direction of sliding in the direction of regulating the woven fabric or the knitted fabric as a desired shape and punching angle as an embodiment of claim 5. These are provided on a predetermined mounting surface of the roller surface 2 or the rotating shaft 3 of the rotating drum.

１ ローラ｛現像ローラ、感光体、中間転写体（ベルトを含む）
１ａ ブラシローラ
１ｂ 発泡体ローラ
２ ローラ表面
３ 回転ドラムの回転軸
４ 支持棒
５ シール部材
５ａ 内側端部
６ 潤滑剤
６ａ 脂肪酸塩または一価アルコールの脂肪酸エステルからなる潤滑剤
６ｂ ステアリン酸塩の潤滑剤
７ 粉体の潤滑剤
８ 石鹸、金属石鹸、ワックスの固形ブロック
８ａ 石鹸、金属石鹸、ワックスの円筒体ブロック
８ｂ 石鹸、金属石鹸、ワックスの直方体ブロック 1 Roller {Developing roller, photoconductor, intermediate transfer member (including belt)
DESCRIPTION OF SYMBOLS 1a Brush roller 1b Foam roller 2 Roller surface 3 Rotating shaft of rotating drum 4 Support rod 5 Seal member 5a Inner end 6 Lubricant 6a Lubricant composed of fatty acid salt or fatty acid ester of monohydric alcohol 6b Lubricant of stearate 7 Powder lubricant 8 Soap, metal soap, wax solid block 8a Soap, metal soap, wax cylinder block 8b Soap, metal soap, wax cuboid block

Claims (5)

トナーなどの粉体を扱う電子写真装置の画像処理装置の感光体のクリーニング装置や現像装置などの処理装置の回転体である粉体担持体の端部でトナーなどの粉体の流れを規制する編物もしくは織物からなるシール部材において、展延性を有する固形化された脂肪酸塩もしくはワックスである一価アルコールの脂肪酸エステルからなる潤滑剤を直接もしくは間接的に編物もしくは織物からなるシール部材の繊維の表面に摺り付け、該繊維の表面に展延性を有する固形化された脂肪酸塩もしくは一価アルコールの脂肪酸エステルの潤滑剤を皮膜状に付着形成していることを特徴とする電子写真のトナーなどの粉体の漏れ出しを防止するシール部材。   The flow of powder such as toner is regulated at the end of a powder carrier that is a rotating body of a processing device such as a photoconductor cleaning device and developing device of an image processing apparatus of an electrophotographic apparatus that handles powder such as toner. In a sealing member made of knitted fabric or woven fabric, the surface of the fiber of the sealing member made of knitted fabric or woven fabric is directly or indirectly coated with a lubricant composed of a fatty acid ester of a monohydric alcohol that is a solidified fatty acid salt or wax having a spreadability. A powder of electrophotographic toner or the like, characterized in that a solidified fatty acid salt or a fatty acid ester of a monohydric alcohol having a spreadability is adhered to the surface of the fiber in a film form. Sealing member that prevents body leakage. 展延性を有する固形化された脂肪酸塩は脂肪酸ナトリウムからなる石鹸またはナトリウムやカリウム以外の金属の脂肪酸塩である金属石鹸であり、ワックスである一価アルコールの脂肪酸エステルは天然ワックスまたは合成ワックスであり、これらワックスの融点は５０℃以上であることを特徴とする請求項１に記載の電子写真のトナーなどの粉体の漏れ出しを防止するシール部材。   The solidified fatty acid salt having spreading properties is a soap made of sodium fatty acid or a metal soap that is a fatty acid salt of a metal other than sodium or potassium, and the fatty acid ester of a monohydric alcohol that is a wax is a natural wax or a synthetic wax. The sealing member for preventing leakage of powder such as toner for electrophotography according to claim 1, wherein the melting point of these waxes is 50 ° C. or more. 脂肪酸塩は脂肪酸ナトリウムからなる石鹸またはナトリウムやカリウム以外の金属の脂肪酸塩である金属石鹸もしくは天然ワックスまたは合成ワックスは編物もしくは織物からなるシール部材の繊維の表面に直接的に摺り付けて形成し、その摺り付ける方向を、粉体の漏れ防止を行う粉体の流れを規制する方向として皮膜状に付着することにより形成したことを特徴とする請求項２に記載の電子写真のトナーなどの粉体の漏れ出しを防止するシール部材。   The fatty acid salt is a soap made of sodium fatty acid, or a metal soap or a natural wax or a synthetic wax that is a fatty acid salt of a metal other than sodium or potassium, and is formed by directly rubbing on the surface of the fiber of the seal member made of knitted fabric or woven fabric, 3. The powder such as toner for electrophotography according to claim 2, wherein the rubbing direction is formed in a film-like manner as a direction for regulating the flow of the powder for preventing the powder from leaking. Sealing member that prevents leakage. 脂肪酸塩は脂肪酸ナトリウムからなる石鹸またはナトリウムやカリウム以外の金属の脂肪酸塩である金属石鹸もしくは天然ワックスまたは合成ワックスは編物もしくは織物からなるシール部材の繊維の表面に間接的に摺り付けて形成し、その摺り付ける方向を、粉体の漏れ防止を行う粉体の流れを規制する方向として皮膜状に付着することにより形成したことを特徴とする請求項２に記載の電子写真のトナーなどの粉体の漏れ出しを防止するシール部材。   Fatty acid salt is a soap made of sodium fatty acid, or a metal soap or a natural wax or a synthetic wax that is a fatty acid salt of a metal other than sodium or potassium, and is formed by rubbing indirectly on the surface of the fiber of the seal member made of knitted or woven fabric, 3. The powder such as toner for electrophotography according to claim 2, wherein the rubbing direction is formed in a film-like manner as a direction for regulating the flow of the powder for preventing the powder from leaking. Sealing member that prevents leakage. 粉体の漏れ防止を行う粉体の流れを規制する方向に摺り付ける方向を向けて皮膜状に付着することにより形成したシール部材は、織物または編物から所望の形状および打抜き角度として形成してローラ表面あるいは回転ドラムの回転軸の所定の取付け面に設けられていることを特徴とする請求項３または請求項４に記載の電子写真のトナーなどの粉体の漏れ出しを防止するシール部材。   The seal member formed by adhering in the form of a film with the direction of slid in the direction of regulating the flow of powder for preventing powder leakage is formed as a desired shape and punching angle from a woven fabric or knitted fabric. 5. The sealing member for preventing leakage of powder such as toner for electrophotography according to claim 3 or 4, wherein the sealing member is provided on a surface or a predetermined mounting surface of a rotating shaft of a rotating drum.
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