JPH10110197A - Block-like metallic soap - Google Patents
Block-like metallic soapInfo
- Publication number
- JPH10110197A JPH10110197A JP26591896A JP26591896A JPH10110197A JP H10110197 A JPH10110197 A JP H10110197A JP 26591896 A JP26591896 A JP 26591896A JP 26591896 A JP26591896 A JP 26591896A JP H10110197 A JPH10110197 A JP H10110197A
- Authority
- JP
- Japan
- Prior art keywords
- fatty acid
- higher fatty
- block
- salt
- metallic
- 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.)
- Withdrawn
Links
Landscapes
- Detergent Compositions (AREA)
- Lubricants (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電子写真装置の潤
滑処理機構において潤滑剤の供給手段として用いられる
高級脂肪酸金属塩を主成分とするブロック状金属石鹸に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block metal soap containing a higher fatty acid metal salt as a main component and used as a lubricant supply means in a lubrication mechanism of an electrophotographic apparatus.
【０００２】[0002]
【従来の技術】従来、電子写真装置に使用されるトナー
と呼ばれる現像剤は、現像ローラに潜像として形成した
感光体に付着され、続いて、転写ローラ又は転写ベルト
の作用により紙に転写されて定着されるが、この現像剤
は、電子写真装置の機内環境の変動によって、機内の各
部分で余分な付着をしたり、固く固着したりして、付着
汚染や転写斑等の不具合を生ぜしめている。2. Description of the Related Art Conventionally, a developer called a toner used in an electrophotographic apparatus is attached to a photoreceptor formed as a latent image on a developing roller, and then transferred to paper by the action of a transfer roller or a transfer belt. However, due to fluctuations in the environment of the electrophotographic apparatus, the developer adheres excessively or firmly to each part in the apparatus, causing problems such as adhesion contamination and transfer spots. Squeezed.
【０００３】そこで、高級脂肪酸金属塩よりなるブロッ
ク状金属石鹸をブラシ等で削り取って微粉末化した微粉
末を感光体、転写ローラ、転写ベルト等に潤滑剤及びク
リーニング剤として塗布させることにより、付着汚染や
転写斑等の不具合を防止して電子写真装置の画質向上が
なされている。[0003] Therefore, a block-shaped metal soap made of a higher fatty acid metal salt is scraped off with a brush or the like to form a fine powder, and the fine powder is applied to a photoreceptor, a transfer roller, a transfer belt, or the like as a lubricant and a cleaning agent. 2. Description of the Related Art Image quality of an electrophotographic apparatus has been improved by preventing problems such as contamination and transfer unevenness.
【０００４】金属石鹸は、高級脂肪酸金属塩を呼称した
ものである。金属石鹸は、高級脂肪酸に基づく無極性部
分と金属に基づく極性部分とを併せて持つ化学構造を有
しているため、高い潤滑性を有している。かかる金属石
鹸を感光体、転写ローラ、転写ベルト等に塗布すると、
現像剤の感光体、転写ローラ、転写ベルト等に対する付
着力が低減して、クリーニング性や転写性が向上する。[0004] Metal soap is a metal salt of higher fatty acid metal. Metal soap has high lubricity because it has a chemical structure having both a non-polar portion based on a higher fatty acid and a polar portion based on a metal. When such a metal soap is applied to a photoconductor, a transfer roller, a transfer belt, and the like,
The adhesive force of the developer to the photoconductor, the transfer roller, the transfer belt and the like is reduced, and the cleaning property and the transfer property are improved.
【０００５】[0005]
【発明が解決しようとする課題】従来、ブロック状金属
石鹸は、一般に、溶融冷却法、即ち、微粒子状の金属石
鹸を加熱溶融した後、所望の形状の型に注型し、冷却固
化することにより製造されているが、溶融された金属石
鹸の冷却凝固時に急激な固化による熱収縮のばらつきが
生じるので、割れ（クラック）が発生し、歩留まりが悪
くなるという問題があった。Conventionally, block-shaped metal soaps are generally prepared by a melt-cooling method, that is, a method in which fine-particle metal soaps are heated and melted, then cast into a mold having a desired shape, and cooled and solidified. However, when the molten metal soap is cooled and solidified, a sudden solidification causes a variation in heat shrinkage, which causes a problem that cracks are generated and the yield is deteriorated.
【０００６】また、ブロック状金属石鹸は、機械的強度
が非常に小さいために、使用時の応力、温度変化等によ
り割れや欠けが発生するという問題があった。[0006] Further, since the block-shaped metal soap has a very low mechanical strength, there is a problem that cracks and chips are generated due to stress, temperature change and the like during use.
【０００７】そこで、金属石鹸に樹脂バインダーを適量
添加することが考えられるが、樹脂バインダーの添加
は、金属石鹸本来の機能である潤滑剤としての機能を低
下させるばかりでなく、塗布時に微粉化しにくくなり、
本来の目的である十分なクリーニング性を低下させるこ
とになるので、好ましくない。Therefore, it is conceivable to add an appropriate amount of a resin binder to the metal soap. However, the addition of the resin binder not only lowers the function of the metal soap as a lubricant but also makes the metal soap hardly pulverized during application. Become
It is not preferable because sufficient cleaning performance, which is the original purpose, is reduced.
【０００８】本発明は、かかる問題を解決することを目
的としている。即ち、本発明は、潤滑剤としての機能を
損なうことなく製造時及び使用時に割れや欠けのないブ
ロック状金属石鹸を提供することを目的とする。An object of the present invention is to solve such a problem. That is, an object of the present invention is to provide a block-shaped metal soap which does not crack or chip during production and use without impairing the function as a lubricant.
【０００９】[0009]
【課題を解決するための手段】本発明者は、主成分とす
る高級脂肪酸金属塩に該高級脂肪酸塩とは直鎖炭素数の
異なる別の高級脂肪酸金属塩を配合してブロック状金属
を形成したところ、急激な固化が生じないために割れや
欠けが生じないことを発見して、本発明を完成させるに
至った。Means for Solving the Problems The present inventors blended a higher fatty acid metal salt as a main component with another higher fatty acid metal salt having a different straight-chain carbon number from the higher fatty acid salt to form a block metal. As a result, they have found that no rapid solidification does not occur, so that cracks and chips do not occur, thereby completing the present invention.
【００１０】即ち、本第１発明は、高級脂肪酸金属塩を
主成分とするブロック状金属石鹸において、該高級脂肪
酸金属塩に該高級脂肪酸塩とは直鎖炭素数の異なる別の
高級脂肪酸金属塩を配合したことを特徴とする。That is, the first invention is directed to a block-shaped metal soap containing a higher fatty acid metal salt as a main component, wherein the higher fatty acid metal salt has another higher fatty acid metal salt having a different linear carbon number from the higher fatty acid salt. Is characterized by the fact that
【００１１】第２発明は、高級脂肪酸塩を形成する金属
がアルカリ土類金属であることを特徴とする。The second invention is characterized in that the metal forming the higher fatty acid salt is an alkaline earth metal.
【００１２】第３発明は、別の高級脂肪酸金属塩を形成
する金属が主成分の高級脂肪酸金属塩を形成する金属と
同種金属であることを特徴とする。The third invention is characterized in that the metal forming another higher fatty acid metal salt is the same as the metal forming the higher fatty acid metal salt as a main component.
【００１３】本発明における高級脂肪酸金属塩として
は、従来、潤滑剤、クリーニング剤として用いられてい
るもの、例えば、ステアリン酸カルシウム、パルミチン
酸カルシウム、ラウリン酸カルシウム、ステアリン酸亜
鉛、パルミチン酸亜鉛等が挙げられ、高級脂肪酸として
は、例えば、ステアリン酸、パルミチン酸、ラウリン酸
等が挙げられるが、これらに限定されるものではない。The higher fatty acid metal salts in the present invention include those conventionally used as lubricants and cleaning agents, for example, calcium stearate, calcium palmitate, calcium laurate, zinc stearate, zinc palmitate and the like. Examples of higher fatty acids include, but are not limited to, stearic acid, palmitic acid, lauric acid, and the like.
【００１４】[0014]
（実施例１）ステアリン酸カルシウム１００重量部及び
パルミチン酸カルシウム５０重量部を１８０℃で溶融し
た。別に、８×８×３００ｍｍのキャビティ部を有する
アルミニウム製金型を上記溶融温度と同一温度に予熱し
た。そして、上記溶融させたステアリン酸カルシウム及
びパルミチン酸カルシウムを予熱したアルミニウム金型
のキャビティ内に注ぎ込んだ。次いで、金型を室温下に
置き、金型温度が５０℃になるまで放冷した。その後、
金型よりブロック状金属石鹸を取り出した。ブロック状
金属石鹸は、１０本成形した。(Example 1) 100 parts by weight of calcium stearate and 50 parts by weight of calcium palmitate were melted at 180 ° C. Separately, an aluminum mold having a cavity of 8 × 8 × 300 mm was preheated to the same melting temperature. Then, the molten calcium stearate and calcium palmitate were poured into the cavity of the preheated aluminum mold. Next, the mold was placed at room temperature and allowed to cool until the mold temperature reached 50 ° C. afterwards,
The block-shaped metal soap was taken out from the mold. Ten block-shaped metal soaps were molded.
【００１５】（実施例２）ステアリン酸カルシウム１０
０重量部及びラウリン酸カルシウム５０重量部を２００
℃で溶融した。別に、８×８×３００ｍｍのキャビティ
部を有するアルミニウム製金型を上記溶融温度と同一温
度に予熱した。そして、上記溶融させたステアリン酸カ
ルシウム及びパルミチン酸カルシウムを予熱したアルミ
ニウム金型のキャビティ内に注ぎ込んだ。次いで、金型
を室温下に置き、金型温度が５０℃になるまで放冷し
た。その後、金型よりブロック状金属石鹸を取り出し
た。ブロック状金属石鹸は、１０本成形した。(Example 2) Calcium stearate 10
0 parts by weight and 50 parts by weight of calcium laurate in 200 parts
Melted at ° C. Separately, an aluminum mold having a cavity of 8 × 8 × 300 mm was preheated to the same melting temperature. Then, the molten calcium stearate and calcium palmitate were poured into the cavity of the preheated aluminum mold. Next, the mold was placed at room temperature and allowed to cool until the mold temperature reached 50 ° C. Thereafter, the block-shaped metal soap was taken out from the mold. Ten block-shaped metal soaps were molded.
【００１６】（実施例３）ステアリン酸亜鉛１００重量
部及びパルミチン酸亜鉛５０重量部を１５０℃で溶融し
た。別に、８×８×３００ｍｍのキャビティ部を有する
アルミニウム製金型を上記溶融温度と同一温度に予熱し
た。そして、上記溶融させたステアリン酸亜鉛及びパル
ミチン酸亜鉛を予熱したアルミニウム金型のキャビティ
内に注ぎ込んだ。次いで、金型を室温下に置き、金型温
度が５０℃になるまで放冷した。その後、金型よりブロ
ック状金属石鹸を取り出した。ブロック状金属石鹸は、
１０本成形した。Example 3 100 parts by weight of zinc stearate and 50 parts by weight of zinc palmitate were melted at 150.degree. Separately, an aluminum mold having a cavity of 8 × 8 × 300 mm was preheated to the same melting temperature. Then, the molten zinc stearate and zinc palmitate were poured into the cavity of the preheated aluminum mold. Next, the mold was placed at room temperature and allowed to cool until the mold temperature reached 50 ° C. Thereafter, the block-shaped metal soap was taken out from the mold. Block-shaped metal soap is
Ten were molded.
【００１７】（比較例１）ステアリン酸カルシウム１０
０重量部を１５０℃で溶融した。別に、８×８×３００
ｍｍのキャビティ部を有するアルミニウム製金型を上記
溶融温度と同一温度に予熱した。そして、上記溶融させ
たステアリン酸カルシウムを予熱したアルミニウム金型
のキャビティ内に注ぎ込んだ。次いで、金型を室温下に
置き、金型温度が５０℃になるまで放冷した。その後、
金型よりブロック状金属石鹸を取り出した。ブロック状
金属石鹸は、１０本成形した。Comparative Example 1 Calcium Stearate 10
0 parts by weight was melted at 150 ° C. Separately, 8 × 8 × 300
An aluminum mold having a cavity of 1 mm was preheated to the same temperature as the melting temperature. Then, the molten calcium stearate was poured into the cavity of the preheated aluminum mold. Next, the mold was placed at room temperature and allowed to cool until the mold temperature reached 50 ° C. afterwards,
The block-shaped metal soap was taken out from the mold. Ten block-shaped metal soaps were molded.
【００１８】これらの評価結果は、次の表１に示され
る。The results of these evaluations are shown in Table 1 below.
【００１９】[0019]
【表１】 [Table 1]
【００２０】表１にみるように、実施例１〜３のブロッ
ク状金属石鹸は、割れや欠けのない良好なものであっ
た。一方、比較例１の金属石鹸は、１０本中５本に割れ
や欠けが発生した。比較例１では、主成分とする高級脂
肪酸金属塩に該高級脂肪酸金属塩とは直鎖炭素数の異な
る別の高級脂肪酸金属塩が配合されていないので、急激
な固化が生じ、割れや欠けが発生したものと考えられ
る。As shown in Table 1, the block-shaped metal soaps of Examples 1 to 3 were excellent without cracks or chips. On the other hand, in the metal soap of Comparative Example 1, cracks and chips occurred in five of the ten soaps. In Comparative Example 1, since the higher fatty acid metal salt as the main component did not contain another higher fatty acid metal salt having a different straight-chain carbon number from the higher fatty acid metal salt, rapid solidification occurred and cracks and chips were generated. Probable.
【００２１】図１（ａ）は、本発明のブロック状金属石
鹸を微粉末化する状態を示す正面図であり、図１（ｂ）
は、その側面図である。図１（ａ）、（ｂ）に示されて
いるように、本発明のブロック状金属石鹸１は、アスペ
クト比の大きい直方体ブロック形状をしている。このブ
ロック状金属石鹸１は、板状の支持体２の上に固定さ
れ、その表面が回転駆動するブラシ状部材３で削り取ら
れて、微粉末化される。この微粉末化された金属石鹸
は、感光体及び転写ベルト（図示せず）に搬送され、潤
滑剤及びクリーニング剤として均一に塗布される。FIG. 1A is a front view showing a state in which the block-shaped metal soap of the present invention is pulverized, and FIG.
Is a side view thereof. As shown in FIGS. 1A and 1B, the block-shaped metal soap 1 of the present invention has a rectangular parallelepiped block shape having a large aspect ratio. The block-shaped metal soap 1 is fixed on a plate-shaped support 2, and its surface is scraped off by a brush-like member 3 that is driven to rotate, and is pulverized. This finely divided metal soap is conveyed to a photoreceptor and a transfer belt (not shown), and is uniformly applied as a lubricant and a cleaning agent.
【００２２】本発明のブロック状金属石鹸は、電子写真
装置、特に、複写機、ファクシミリ、プリンター等の画
像形成装置の潤滑処理機構における潤滑剤の供給手段と
して用いられる。The block-shaped metal soap of the present invention is used as a lubricant supply means in a lubrication processing mechanism of an electrophotographic apparatus, particularly, an image forming apparatus such as a copying machine, a facsimile, and a printer.
【００２３】本発明は、次の利点を有する。 （イ）高級脂肪酸金属塩に該高級脂肪酸塩とは直鎖炭素
数の異なる別の高級脂肪酸金属塩を配合したので、急激
な固化が生じにくく、成形時の割れや欠けを防ぐことが
できる。 （ロ）高級脂肪酸を形成する金属がアルカリ土類金属で
ある場合には、その直鎖炭素数による融点変化が明確と
なるため、金型の冷却速度を速めた場合でも段階的な固
化が可能となり、成形じの割れや欠けを防ぐことができ
る。 （ハ）別の高級脂肪酸金属塩を形成する金属が主成分の
高級脂肪酸金属塩を形成する金属と同種金属である場合
には、混合物の親和性が高くなり、より機械的強度の優
れたブロック状金属石鹸とすることができる。The present invention has the following advantages. (A) Since another higher fatty acid metal salt having a different number of straight-chain carbon atoms from the higher fatty acid salt is blended with the higher fatty acid metal salt, rapid solidification hardly occurs, and cracking and chipping during molding can be prevented. (B) When the metal forming the higher fatty acid is an alkaline earth metal, the melting point change according to the number of straight-chain carbon atoms becomes clear, so that stepwise solidification is possible even when the cooling rate of the mold is increased. Thus, cracking and chipping of the molding strip can be prevented. (C) When the metal forming another higher fatty acid metal salt is the same kind of metal as the metal forming the higher fatty acid metal salt as a main component, the affinity of the mixture becomes higher, and the block has higher mechanical strength. Metal soap.
【００２４】[0024]
【発明の効果】潤滑剤としての機能を損なうことなく、
機械的強度に優れ、成型時及び使用時に割れることがな
いブロック状金属石鹸を提供することができる。EFFECT OF THE INVENTION Without impairing the function as a lubricant,
It is possible to provide a block-shaped metal soap which has excellent mechanical strength and does not break during molding and use.
【図１】本発明のブロック状金属石鹸を微粉末化する状
態を示す図であって、（ａ）は、その正面図であり、
（ｂ）は、その側面図である。FIG. 1 is a diagram showing a state in which a block-shaped metal soap of the present invention is pulverized, wherein (a) is a front view thereof;
(B) is a side view thereof.
１ ブロック状金属石鹸 ２ 板状の支持体 ３ ブラシ状部材 DESCRIPTION OF SYMBOLS 1 Block-shaped metal soap 2 Plate-shaped support body 3 Brush-shaped member
───────────────────────────────────────────────────── フロントページの続き (72)発明者 太田 温 東京都大田区中馬込１丁目３番６号 株式 会社リコー内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Atsushi Ota 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Co., Ltd.
Claims (3)
ク状金属石鹸において、該高級脂肪酸金属塩に該高級脂
肪酸塩とは直鎖炭素数の異なる別の高級脂肪酸金属塩を
配合したことを特徴とするブロック状金属石鹸。1. A block-shaped metal soap containing a higher fatty acid metal salt as a main component, characterized in that the higher fatty acid metal salt is mixed with another higher fatty acid metal salt having a different straight-chain carbon number from the higher fatty acid salt. Block-shaped metal soap.
土類金属であることを特徴とする請求項１記載のブロッ
ク状金属石鹸。2. The block-shaped metal soap according to claim 1, wherein the metal forming the higher fatty acid salt is an alkaline earth metal.
主成分の高級脂肪酸金属塩を形成する金属と同種金属で
あることを特徴とする請求項１又は２記載のブロック状
金属石鹸。3. The block-shaped metal soap according to claim 1, wherein the metal forming another higher fatty acid metal salt is the same as the metal forming the higher fatty acid metal salt as a main component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26591896A JPH10110197A (en) | 1996-10-07 | 1996-10-07 | Block-like metallic soap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26591896A JPH10110197A (en) | 1996-10-07 | 1996-10-07 | Block-like metallic soap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10110197A true JPH10110197A (en) | 1998-04-28 |
Family
ID=17423911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26591896A Withdrawn JPH10110197A (en) | 1996-10-07 | 1996-10-07 | Block-like metallic soap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10110197A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007145993A (en) * | 2005-11-28 | 2007-06-14 | Ricoh Co Ltd | Lubricant molding, lubricant coater, process cartridge and image formation apparatus |
| JP2009282365A (en) * | 2008-05-23 | 2009-12-03 | Ricoh Co Ltd | Image forming apparatus |
| JP2010164759A (en) * | 2009-01-15 | 2010-07-29 | Ricoh Co Ltd | Protective layer forming device, and image forming apparatus and process cartridge using the same |
| JP2010189515A (en) * | 2009-02-17 | 2010-09-02 | Sakai Chem Ind Co Ltd | Higher fatty acid metal salt block |
| JP2011048053A (en) * | 2009-08-26 | 2011-03-10 | Ricoh Co Ltd | Intermediate transfer belt for electrophotography, and image forming apparatus |
| US7979016B2 (en) | 2008-05-23 | 2011-07-12 | Ricoh Company, Ltd. | Image forming apparatus and protective agent block |
-
1996
- 1996-10-07 JP JP26591896A patent/JPH10110197A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007145993A (en) * | 2005-11-28 | 2007-06-14 | Ricoh Co Ltd | Lubricant molding, lubricant coater, process cartridge and image formation apparatus |
| JP2009282365A (en) * | 2008-05-23 | 2009-12-03 | Ricoh Co Ltd | Image forming apparatus |
| US7979016B2 (en) | 2008-05-23 | 2011-07-12 | Ricoh Company, Ltd. | Image forming apparatus and protective agent block |
| JP2010164759A (en) * | 2009-01-15 | 2010-07-29 | Ricoh Co Ltd | Protective layer forming device, and image forming apparatus and process cartridge using the same |
| JP2010189515A (en) * | 2009-02-17 | 2010-09-02 | Sakai Chem Ind Co Ltd | Higher fatty acid metal salt block |
| JP2011048053A (en) * | 2009-08-26 | 2011-03-10 | Ricoh Co Ltd | Intermediate transfer belt for electrophotography, and image forming apparatus |
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| A300 | Withdrawal of application because of no request for examination |
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