JP2002255386A - Paper separating pad - Google Patents
Paper separating padInfo
- Publication number
- JP2002255386A JP2002255386A JP2001051607A JP2001051607A JP2002255386A JP 2002255386 A JP2002255386 A JP 2002255386A JP 2001051607 A JP2001051607 A JP 2001051607A JP 2001051607 A JP2001051607 A JP 2001051607A JP 2002255386 A JP2002255386 A JP 2002255386A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- separation pad
- sheet
- sheet separation
- rubber
- 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
- 239000006258 conductive agent Substances 0.000 claims abstract description 19
- 229920001971 elastomer Polymers 0.000 claims abstract description 16
- 239000005060 rubber Substances 0.000 claims abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims description 58
- 239000000203 mixture Substances 0.000 claims description 8
- 239000006260 foam Substances 0.000 abstract description 14
- 239000000843 powder Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 9
- 230000003068 static effect Effects 0.000 abstract description 9
- 230000005611 electricity Effects 0.000 abstract description 8
- 229920002635 polyurethane Polymers 0.000 abstract description 6
- 239000004814 polyurethane Substances 0.000 abstract description 6
- 229920002943 EPDM rubber Polymers 0.000 abstract description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 abstract description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 abstract 1
- 230000003111 delayed effect Effects 0.000 abstract 1
- 238000005187 foaming Methods 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 229920001821 foam rubber Polymers 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 241000628997 Flos Species 0.000 description 5
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- -1 lithium peroxide Chemical class 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003273 ketjen black Substances 0.000 description 2
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 2
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000004973 alkali metal peroxides Chemical class 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 229920005558 epichlorohydrin rubber Polymers 0.000 description 1
- HPGPEWYJWRWDTP-UHFFFAOYSA-N lithium peroxide Chemical compound [Li+].[Li+].[O-][O-] HPGPEWYJWRWDTP-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000012257 stirred material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical class CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、複写機、プリンタ
ー、ＦＡＸ等のＯＡ機器あるいは現金自動支払機等に使
用する定形用紙や紙幣を、分離供給をするための装置に
組み込んだ紙葉類分離パッドに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet separating apparatus in which fixed-size paper and bills used in OA equipment such as copiers, printers, and fax machines or cash dispensers are incorporated in an apparatus for separating and feeding. About the pad.
【０００２】[0002]
【従来の技術】従来のＯＡ機器あるいは現金自動支払機
に使用されている紙葉類分離パッドは、通常、発泡体に
て構成されており、給紙ロールと組み合わされて給紙を
行うように構成されている。給紙に際して、給紙ロール
で供給される紙葉類が重複して２枚以上供給された場合
は、紙葉類同士の摩擦よりも紙葉類と紙葉類分離パッド
との摩擦の方が大きくなるようにして、１枚の紙葉類だ
けが分離供給されるようにされている。この紙葉類分離
パッドは、発泡体にて構成されているから、その表面に
ある窪みに紙粉が入り込み、長期に使用しても摩擦係数
が低下せず、更に硬度も広い範囲で調整できる利点を有
しいる。2. Description of the Related Art A sheet separation pad used in a conventional OA machine or a cash dispenser is usually formed of a foam, and is used in combination with a paper feed roll to feed paper. It is configured. When two or more paper sheets supplied by the paper feed roll are supplied at the time of paper feeding, the friction between the paper sheets and the paper sheet separation pad is greater than the friction between the paper sheets. In order to increase the size, only one sheet is separately supplied. Since this paper sheet separation pad is made of a foam, paper powder enters into the dents on the surface thereof, and the friction coefficient does not decrease even after long-term use, and the hardness can be adjusted in a wide range. Has advantages.
【０００３】ところが、上記紙葉類分離パッドが紙葉類
と摺動した場合、通常、紙葉類および分離パッドそれぞ
れ逆極性に帯電するため、紙葉類分離パッドに紙粉が付
着して摩擦係数が低下し、紙葉類の重送が発生する。さ
らに、画像形成装置の構造によっては、帯電した紙葉類
が転写工程まで搬送されることがあり、この場合には、
画像乱れ等の悪影響を及ぼすことになる。However, when the sheet separation pad slides with the sheet, the sheet and the separation pad are usually charged to opposite polarities, so that the paper powder adheres to the sheet separation pad and causes friction. The coefficient decreases and double feeding of paper sheets occurs. Further, depending on the structure of the image forming apparatus, the charged paper sheets may be transported to the transfer step. In this case,
This will have adverse effects such as image disturbance.
【０００４】このような不都合を解消する紙葉類分離パ
ッドとして、紙葉類に対して摺動すると、紙葉類分離パ
ッドがプラスに帯電するように配合したゴム組成物から
なるものが知られている（特許第２５４８８４２号参
照）。この公知例によれば、紙葉類分離パッドがプラス
に帯電することにより、紙葉類がマイナスに帯電し、マ
イナス電荷のトナーと反発しあい、画像乱れが生じるこ
とがないという特徴を有している。[0004] As a sheet separating pad for solving such a disadvantage, there is known a sheet separating pad made of a rubber compound compounded so that the sheet separating pad is positively charged when sliding on the sheet. (See Japanese Patent No. 2548842). According to this known example, the sheet separation pad is positively charged, so that the sheet is negatively charged and repels the negatively charged toner, so that the image is not disturbed. I have.
【０００５】[0005]
【発明が解決しようとする課題】上記先行技術による紙
葉類分離パッドは、紙葉類がマイナスに帯電することに
なるため、マイナス電荷のトナーと反発しあい、画像乱
れが生じることがないという点では有用性があるものと
考えられている。しかしながら、プラス電荷のトナーに
は、効果が及ばないという欠点がある。したがって、こ
の紙葉類分離パッドは、帯電していることには変わりが
ないため、どうしても紙粉が付着することは避けること
ができない。その結果、この紙葉類分離パッドは、その
表面に紙粉が付着していき、徐々に摩擦係数が低下し
て、早い時点で紙葉類と紙葉類分離パッドとの間の摩擦
係数と、紙葉類同士の摩擦係数とに差が無くなり、紙葉
類分離パッドとしての適性が失われて行くことになる。The sheet separating pad according to the prior art described above is characterized in that the sheet is negatively charged, so that the sheet is repelled by the negatively charged toner and no image disturbance occurs. Is considered useful. However, the positively charged toner has a disadvantage that the effect is not obtained. Therefore, since the paper sheet separation pad is still charged, it is inevitable that paper powder adheres. As a result, in this paper separation pad, paper powder adheres to the surface, the friction coefficient gradually decreases, and the friction coefficient between the paper sheet and the paper separation pad at an early point in time. As a result, the difference between the friction coefficients of the paper sheets disappears, and the suitability as a paper sheet separation pad is lost.
【０００６】そこで、本発明の目的は、発泡構造による
紙粉付着の悪影響の防止に加えて、帯電による紙粉付着
の軽減ならびに紙葉類の帯電に起因する給紙トラブルと
画像乱れを防ぐことができ、常に安定して紙葉類を分離
供給することが出来る紙葉類分離パッドを提供すること
にある。SUMMARY OF THE INVENTION It is therefore an object of the present invention to reduce the adhesion of paper dust due to electrification and to prevent paper feeding troubles and image disturbances due to electrification of paper sheets, in addition to preventing the adverse effect of adhesion of paper dust due to the foamed structure. It is an object of the present invention to provide a paper sheet separation pad that can always separate and supply paper sheets stably.
【０００７】[0007]
【課題を解決するための手段】本発明は、上記目的を達
成するために提案されたものであって、発泡体ゴムに導
電性を付与することによって、電荷減衰特性を持たせ、
通紙時において、紙葉類に帯電した電荷を除電し、経時
的に安定した摩擦係数を有する紙葉類分離パッドとする
ことにより、静電気による紙葉類同士の張り付きに起因
する給紙トラブルを防止可能にした点に重要な技術的意
義がある。DISCLOSURE OF THE INVENTION The present invention has been proposed to achieve the above object, and has a charge decay characteristic by imparting conductivity to a foamed rubber.
At the time of paper passing, the charge on the paper sheets is eliminated, and a paper separation pad with a stable friction coefficient over time is used to prevent paper feed trouble caused by sticking between paper sheets due to static electricity. There is an important technical significance in making it preventable.
【０００８】本発明の特徴を要訳すると、下記の通りで
ある。 上記導電性を付与した発泡構造による紙粉の付着防
止； 体積抵抗率および飽和耐電圧の半減時間を特定値に
規定したことによる帯電防止性の発現に伴う紙粉の付着
軽減； 体積抵抗率および飽和耐電圧の半減時間を特定値に
規定したことによる帯電防止性の発現に伴う静電気によ
る紙葉類同士の吸着防止； 体積抵抗率および飽和耐電圧の半減時間を特定値に
規定したことによる帯電防止性の発現に伴う静電気によ
る画像乱れの防止；The features of the present invention are as follows. Prevention of adhesion of paper powder by the above-mentioned conductive foamed structure; Reduction of adhesion of paper powder due to development of antistatic property by defining volume resistivity and half-life of saturation withstand voltage to specific values; Prevention of paper sheets from sticking to each other due to static electricity due to the development of antistatic properties by specifying the half-life of saturation withstand voltage to a specific value; electrification by specifying the volume resistivity and half-life of saturation withstand voltage to specific values Prevention of image disturbance due to static electricity due to the manifestation of prevention;
【０００９】すなわち、本発明によれば、導電性を付与
してなる発泡体ゴムを用いたことを特徴とする紙葉類分
離パッドが提供される。That is, according to the present invention, there is provided a paper sheet separation pad characterized by using a foamed rubber provided with conductivity.
【００１０】また、本発明によれば、体積抵抗率（Ω・
ｃｍ）が１．０Ｅ＋１０以下で、かつ、飽和耐電圧の半
減時間が５．００秒以下である上記紙葉類分離パッドが
提供される。Further, according to the present invention, the volume resistivity (Ω ·
cm) is 1.0E + 10 or less, and the half-life of the saturation withstand voltage is 5.00 seconds or less.
【００１１】また、本発明によれば、導電剤として、導
電性カーボンブラックおよび／またはイオン導電剤を配
合した上記紙葉類分離パッドが提供される。Further, according to the present invention, there is provided the above-mentioned paper sheet separation pad in which conductive carbon black and / or ionic conductive agent are blended as the conductive agent.
【００１２】また、本発明によれば、導電性カーボンブ
ラックが全組成に対して０．２ないし３０重量％配合さ
れている上記紙葉類分離パッドが提供される。Further, according to the present invention, there is provided the above-mentioned paper sheet separation pad in which conductive carbon black is blended in an amount of 0.2 to 30% by weight based on the total composition.
【００１３】また、本発明によれば、イオン導電剤が全
組成に対して０．０５ないし１０重量％配合されている
上記紙葉類分離パッドが提供される。Further, according to the present invention, there is provided the above-mentioned paper sheet separating pad, wherein the ion conductive agent is incorporated in an amount of 0.05 to 10% by weight based on the total composition.
【００１４】[0014]
【発明の実施の形態】以下に、図面を参照して本発明の
実施の形態を説明する。図１は、本発明の実施の形態を
示す紙葉類分離パッドが組み込まれたＯＡ機器における
給紙装置の側面図、図２は本発明の実施の形態を示す紙
葉類分離パッドの平面図である。これらの図において、
給紙装置１は、紙葉類２が収容されている給紙部３から
給紙ロール４により紙葉類２が給紙口５から送り出さ
れ、紙葉類分離パッド６とこれに対接している送出ロー
ル７とで形成される分離部８に送られ、紙葉類２が２枚
以上重層して分離部８に送られてきても、分離部８にて
１枚づつに分離されて、次の工程、例えば、感光工程、
印字工程に送られるように構成されている。この分離部
８は、図２に示すような長方形の紙葉類分離パッド６
に、送出ロール７が対接してなるものであるが、いずれ
も紙葉類２の摩擦係数より高いことが条件となる。すな
わち、重層した紙葉類２ａ、２ｂ同士の摩擦より、紙葉
類２ａ及び２ｂと紙葉類分離パッド６及び送出ロール７
との摩擦が大きいことによって、紙葉類分離パッド６に
接している紙葉類２ａは残り、紙葉類２ａに接している
紙葉類２ｂは紙葉類２ａ上を滑り送出ロール７により次
の工程に送られる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a sheet feeding device in an OA device incorporating a sheet separation pad according to an embodiment of the present invention, and FIG. 2 is a plan view of the sheet separation pad according to the embodiment of the present invention. It is. In these figures,
In the paper feeding device 1, the paper sheets 2 are sent out from a paper feeding port 5 by a paper feed roll 4 from a paper feeding unit 3 in which the paper sheets 2 are stored, and the paper sheets separation pad 6 is brought into contact with the paper separation pad 6. Even if the sheet 2 is sent to the separation unit 8 in a state where two or more sheets are stacked, the sheet 2 is separated by the separation unit 8 one by one. The next step, for example, a photo-sensitive step,
It is configured to be sent to a printing process. This separating section 8 is a rectangular paper sheet separating pad 6 as shown in FIG.
In addition, although the delivery rolls 7 are in contact with each other, the condition is that all of them are higher than the friction coefficient of the paper sheet 2. That is, due to friction between the stacked sheets 2a and 2b, the sheets 2a and 2b, the sheet separation pad 6 and the delivery roll 7
Due to the large friction with the paper sheet 2a, the paper sheet 2a in contact with the paper sheet separation pad 6 remains, and the paper sheet 2b in contact with the paper sheet 2a slides on the paper sheet 2a, and is next fed by the delivery roll 7. Sent to the process.
【００１５】この紙葉類分離パッド６は、発泡体ゴムに
導電性を付与することによって、帯電防止性を持たせた
ものである。すなわち、この紙葉類分離パッド６は、基
材となる発泡体に、導電性を付与することにより、基材
である発泡体自体が導電性を有するものである。基材の
発泡体自体が導電性を有することで、紙葉類分離パッド
６自体に電荷を溜めないようにし紙粉を付着させずに重
層送出を防止し、加えて紙葉類２に溜まった電荷を逃が
し、紙葉類同士２の静電気による吸着を防止し、さらに
紙葉類の帯電に起因する画像乱れを防ぐことができる。The paper sheet separation pad 6 has an antistatic property by imparting conductivity to foamed rubber. That is, in the paper sheet separation pad 6, by giving conductivity to the foam serving as the base material, the foam itself serving as the base material has conductivity. Since the foam itself of the base material has conductivity, the electric charge is not accumulated in the paper sheet separation pad 6 itself, the multilayer paper is prevented from being adhered without adhering the paper powder, and additionally, the accumulated paper sheet 2 is accumulated. It is possible to release the charge, prevent the sheets 2 from being attracted to each other by static electricity, and prevent image disturbance due to charging of the sheets.
【００１６】基材となる発泡体としては、ポリウレタ
ン、エピクロロヒドリンゴム、エチレンプロピレンゴム
（ＥＰＤＭ）等の合成ゴムが使用される。ポリウレタン
の場合、その平均分子量は１０００ないし４０００の範
囲のものが本発明において使用するのに適しているが、
これに限定されるものではない。As the foam to be used as a base material, synthetic rubber such as polyurethane, epichlorohydrin rubber, ethylene propylene rubber (EPDM) and the like are used. In the case of polyurethanes, those having an average molecular weight in the range of 1000 to 4000 are suitable for use in the present invention,
It is not limited to this.
【００１７】そして、この発泡体の気泡形態は独立気泡
であっても、連続気泡であってもよく、その製造方法に
ついても限定されるものではないが、独立気泡である方
が気泡の大きさを揃え易く、且つ微細構造とし易い点で
製造しやすいというメリットがある。The foam form of the foam may be closed cells or open cells, and the method for producing the cells is not limited. There is a merit that it is easy to prepare and it is easy to produce a fine structure.
【００１８】また、この紙葉類分離パッド６は、導電性
を付与してなる発泡体ゴムから構成されるものであり、
該導電性発泡体ゴムの体積抵抗率（Ω・ｃｍ）を１．０
Ｅ＋１０以下で、かつ、飽和耐電圧の半減時間が５．０
０秒以下であるものが好ましく用いられる。The paper sheet separation pad 6 is made of foam rubber provided with conductivity.
The volume resistivity (Ω · cm) of the conductive foamed rubber is 1.0
E + 10 or less, and a half-time of saturation withstand voltage of 5.0
Those having a duration of 0 seconds or less are preferably used.
【００１９】この体積抵抗率および飽和耐電圧の半減時
間が上記規定を満たしていない場合は、本発明が目的と
する紙葉類重送防止パッドの紙葉類に対する除電性能が
不十分であり、静電気による紙葉類同士の吸着に起因す
る重層送出を十分に防止することが出来ず、且つ紙葉類
上の画像乱れを十分に防ぐこともできない。なお、上記
のＥはＥｘｐｏｒｎｅｎｔの略で、１０倍であることを
意味する指数である。If the half-life of the volume resistivity and the saturation withstand voltage does not satisfy the above-mentioned specifications, the anti-static property of the paper-sheet double feeding prevention pad of the present invention for the paper is insufficient. It is not possible to sufficiently prevent multi-layer feeding caused by the adsorption of paper sheets due to static electricity, and it is also impossible to sufficiently prevent image disturbance on the paper sheets. Note that the above E is an abbreviation for “Exponent” and is an index that means 10 times.
【００２０】体積抵抗率を１．０Ｅ＋１０以下とするこ
との理由は、下記の通りである。すなわち、分離パッド
自体が導電性を有することで、摺動により紙葉類に帯電
した電荷を分離パッドを通しパッドホルダーに逃がすこ
とができるようになる。この際、パッドホルダー部には
アースが付設されていることが必要である。この作用を
効率よく達成できる体積抵抗率が、１．０Ｅ＋１０以下
ということである。The reason for setting the volume resistivity to 1.0E + 10 or less is as follows. That is, since the separation pad itself has conductivity, the electric charge charged to the paper sheet by sliding can be released to the pad holder through the separation pad. In this case, it is necessary that the pad holder is provided with a ground. This means that the volume resistivity capable of efficiently achieving this effect is 1.0E + 10 or less.
【００２１】本発明においては、上記体積抵抗率の規定
に加えて、飽和耐電圧の半減時間が５秒以下であるが必
要である。この二つの要件が満たされることにより、摺
動により発生した紙葉類の電荷を素早く逃がしてやるこ
とができる。これによって、逐次蓄積される電荷を素早
く逃がすことができ、紙葉類の帯電を防止することがで
きる。ちなみに、上記半減時間が５秒以上であると、体
積抵抗率が規定の範囲であっても、摺動により蓄積され
る電荷に対して漏洩が追いつかずに紙葉類の帯電を招い
てしまう結果になる。In the present invention, in addition to the above-mentioned specification of the volume resistivity, the half time of the saturation withstand voltage is required to be 5 seconds or less. By satisfying these two requirements, the electric charge of the paper sheet generated by the sliding can be quickly released. As a result, the charges sequentially accumulated can be quickly released, and the charging of the paper sheets can be prevented. By the way, if the half-life is 5 seconds or longer, even if the volume resistivity is within the specified range, the leakage will not catch up with the charge accumulated by sliding, resulting in the charging of paper sheets. become.
【００２２】飽和耐電圧の半減時間は、下記の方法によ
って測定された値である。分離パッドを厚さ１ｍｍで４
ｃｍ×４ｃｍの大きさにカットして、測定サンプルを作
成する。測定機器としてオネストメーター(SHISHIDO EL
ECTROSTATIC LTD製、STATIC HONEST METER H-0110) を
使用し、印加電圧：マイナス１０ｋＶ，プルーフ間距離
２０ｍｍにて行う。測定時の温度は２０℃、湿度は４０
％とする。The half-life of the saturation withstand voltage is a value measured by the following method. Separation pad with 1mm thickness 4
The sample is cut into a size of cm × 4 cm to prepare a measurement sample. Honest meter (SHISHIDO EL)
Using STATIC HONEST METER H-0110), manufactured by ECTROSTATIC LTD, at an applied voltage of -10 kV and a distance between proofs of 20 mm. The temperature at the time of measurement was 20 ° C and the humidity was 40
%.
【００２３】この基材たる発泡体ゴムに導電性を付与す
る方法は、特に限定されるものではないが、発泡体ゴム
に導電性カーボンブラックおよび／またはイオン導電剤
を添加する方法が好ましく採用される。導電性カーボン
ブラックおよびイオン導電剤は、いずれか一方を単独で
配合してもよく、両者を併用してもよい。The method of imparting conductivity to the foam rubber as the base material is not particularly limited, but a method of adding conductive carbon black and / or an ionic conductive agent to the foam rubber is preferably employed. You. Either the conductive carbon black or the ionic conductive agent may be used alone, or both may be used in combination.
【００２４】上記導電性剤の配合量はゴムの種類により
適性量が異なり、一概に言うことはできないが、発泡体
ゴムの全組成に対して０．２ないし３０重量％が配合さ
れるが、好ましい例であるメカフロス成形におけるポリ
ウレタンに導電性カーボンブラックを配合する場合は、
０．３ないし３重量％、特に０．５±０．１重量％であ
ることが好ましい。The amount of the conductive agent to be compounded varies depending on the type of rubber, and cannot be specified unconditionally. However, 0.2 to 30% by weight is compounded with respect to the total composition of the foamed rubber. When blending conductive carbon black with polyurethane in the mecha floss molding which is a preferred example,
It is preferably from 0.3 to 3% by weight, especially 0.5 ± 0.1% by weight.
【００２５】また、イオン導電剤単独の場合は、発泡体
ゴムに０．０５ないし１０重量％配合して導電性を付与
する必要がある。０．０５重量％未満の配合では、発泡
体ゴムに導電性を付与することが出来ず、１０重量％を
超えた配合では、導電性の上乗せが少なく無駄であるば
かりか、イオン導電剤の種類によっては紙葉類に紙葉類
分離パットが摺動すると紙葉類を汚す虞があるばかりで
なく、発泡体ゴムの耐磨耗性等の特性が低下する虞もあ
る。なお、イオン導電剤の場合も、好ましい配合範囲
は、０．３ないし３重量％であり、最も好ましい配合量
は約０．５重量％である。イオン導電剤としては、例え
ば、過酸化リチウム等のアルカリ金属過酸化物、過塩素
酸リチウム等の過塩素酸塩、テトラブチルアンモニウム
塩等の四級アンモニウム塩、およびリン酸エステル塩等
の少なくとも１種が用いられる。When the ionic conductive agent is used alone, it is necessary to add 0.05 to 10% by weight to the foam rubber to impart conductivity. If the content is less than 0.05% by weight, the foamed rubber cannot be provided with conductivity. If the content is more than 10% by weight, the added conductivity is not only wasteful but also the type of the ionic conductive agent. In some cases, when the sheet separating pad slides on the sheet, the sheet may not only be soiled, but also the properties such as abrasion resistance of the foam rubber may be reduced. In the case of the ion conductive agent, the preferable compounding range is 0.3 to 3% by weight, and the most preferable compounding amount is about 0.5% by weight. Examples of the ionic conductive agent include at least one of an alkali metal peroxide such as lithium peroxide, a perchlorate such as lithium perchlorate, a quaternary ammonium salt such as a tetrabutylammonium salt, and a phosphate ester salt. Seeds are used.
【００２６】この紙葉類分離パッド６は、特に限定され
るものではないが、好ましい例であるメカフロス成形の
場合は、以下のようにして作られる。すなわち、ポリウ
レタンのプレポリマーにカーボンブラックおよび／また
はイオン導電剤を所定量配合し、それにメカニカルフロ
スにて気泡を抱き込ませつつ一定時間攪拌し、その後硬
化剤を規定量添加し一定時間攪拌して、加温した金型に
注入し、所定時間そのままにしておけば、紙葉類分離パ
ッド６となる導電性発泡体ゴムが得られる。この導電性
発泡体ゴムを所定の形状にカットして、紙葉類分離パッ
ド６を得る。なお、メカフロス成形以外の方法として
は、フロンや炭酸ガス等の発泡剤を使用する方法が例示
される。Although the paper sheet separation pad 6 is not particularly limited, in the case of a preferred example of mecha floss molding, it is made as follows. That is, a predetermined amount of carbon black and / or an ionic conductive agent is blended with a polyurethane prepolymer, and the mixture is stirred for a certain period of time while embracing bubbles with mechanical floss, and then a predetermined amount of a curing agent is added and stirred for a certain period of time. Then, if it is poured into a heated mold and left as it is for a predetermined time, a conductive foam rubber to be the paper sheet separation pad 6 can be obtained. This conductive foam rubber is cut into a predetermined shape to obtain a paper sheet separation pad 6. As a method other than the mechanical floss molding, a method using a blowing agent such as chlorofluorocarbon or carbon dioxide is exemplified.
【００２７】[0027]
【実施例】次に、実施例によって本発明を説明する。 〔実施例１〕ポリウレタンのプレポリマーにイオンバッ
チ（日本カーリット（株）製、ＨＣ−１）をイオン（過
塩素酸リチウム）含量がプレポリマーに対して０．５重
量％になるように配合し、メカニカルフロスにて気泡を
抱き込ませつつ５分間攪拌し、その後、硬化剤として、
ＢＨＥＢ、１．４ＢＤ ＴＭＰを添加して更に１分間攪
拌し、これら攪拌物を１２０℃に保った金型に注入し、
１００分間保持して発泡成形ブロック体を得た。この発
泡成形ブロック体を１ｍｍ厚みにカッターでスライス
し、幅１０ｍｍ×長さ３０ｍｍにカットして紙葉類分離
パッドとした。Next, the present invention will be described by way of examples. Example 1 An ion batch (HC-1 manufactured by Nippon Carlit Co., Ltd.) was blended with a polyurethane prepolymer so that the ion (lithium perchlorate) content was 0.5% by weight based on the prepolymer. , Stirring for 5 minutes while embracing bubbles with mechanical floss, and then as a curing agent,
BHEB, 1.4BD TMP was added, and the mixture was stirred for another 1 minute. These stirred materials were poured into a mold kept at 120 ° C,
After holding for 100 minutes, a foam molded block was obtained. The foam molded block was sliced with a cutter to a thickness of 1 mm, and cut into a width of 10 mm and a length of 30 mm to obtain a paper sheet separation pad.
【００２８】得られた紙葉類分離パッドについて以下の
項目を測定し、表１に示した。 体積抵抗率（Ω・ｃｍ）：ＪＩＳ Ｋ６９１１−１９
７９に準じて測定した。 飽和耐電圧および半減時間：段落番号００２２記載の
方法で測定した。 紙粉の付着具合：紙葉類分離パッドをコピー機に装着
し、７０ｇ／ｍ2 の普通紙を通し、紙葉類分離パッドに
おける紙粉の付着具合を目視観察した。なお、通紙時の
温度は１０℃、湿度２０％であった。 Ｌ．Ｌ環境下での給紙ミス：紙葉類分離パッドをコピ
ー機に装着し、７０ｇ／ｍ2 の普通紙を１０Ｋ通し、
Ｌ．Ｌ環境（温度１０℃、湿度３０％）下での給紙ミス
を目視観察した。The following items were measured for the obtained sheet separation pad, and the results are shown in Table 1. Volume resistivity (Ω · cm): JIS K6911-19
It measured according to 79. Saturation withstand voltage and half-life: measured by the method described in paragraph number 0022. Adhesion degree of paper dust: A paper leaf separation pad was attached to a copying machine, and 70 g / m 2 of plain paper was passed through, and the adhesion state of paper dust on the paper leaf separation pad was visually observed. The temperature during paper passing was 10 ° C. and the humidity was 20%. L. Paper misfeed under L environment: A paper sheet separation pad was attached to a copier, 70 g / m 2 of plain paper was passed through 10K,
L. Paper feeding errors were visually observed under the L environment (temperature: 10 ° C., humidity: 30%).
【００２９】〔実施例２〕ポリウレタンのプレポリマー
に導電性カーボンブラック（ケッチェンブラックインタ
ーナショナル（株）製、ケッチェンブラックＥＣ ＥＣ
６００ＪＤ）を０．５重量％配合すること以外、実施例
１と同様にして紙葉類分離パッドを得て、この紙葉類分
離パッドについて実施例１と同様の測定を行った。得ら
れた結果を表１に示した。Example 2 A conductive carbon black (Ketjen Black EC manufactured by Ketjen Black International, Inc.) was used as a prepolymer of polyurethane.
A sheet separation pad was obtained in the same manner as in Example 1, except that 0.5% by weight of J.I.D.600 JD) was added, and the same measurement as in Example 1 was performed on this sheet separation pad. Table 1 shows the obtained results.
【００３０】〔実施例３〕ポリウレタンのプレポリマー
にイオンバッチ（日本カーリット（株）製、ＨＣ−１）
を０．３重量％と、導電性カーボンブラック（ケッチェ
ンブラックインターナショナル（株）製、ケッチェンブ
ラックＥＣ ＥＣ６００ＪＤ）を０．３重量％配合する
こと以外、実施例１と同様にして紙葉類分離パッドを得
て、この紙葉類分離パッドについて実施例１と同様の測
定を行った。得られた結果を表１に示した。Example 3 An ion batch (HC-1 manufactured by Nippon Carlit Co., Ltd.) was added to a polyurethane prepolymer.
Was separated in the same manner as in Example 1 except that 0.3% by weight of the compound was mixed with 0.3% by weight of a conductive carbon black (Ketjen Black EC EC600JD, manufactured by Ketjen Black International Co., Ltd.). A pad was obtained, and the same measurement as in Example 1 was performed on this paper sheet separation pad. Table 1 shows the obtained results.
【００３１】〔比較例１〕ポリウレタンのプレポリマー
にイオンバッチを無添加とすること以外、実施例１と同
様にして紙葉類分離パッドを得て、この紙葉類分離パッ
ドについて実施例１と同様の測定を行った。得られた結
果を表１に示した。Comparative Example 1 A sheet separation pad was obtained in the same manner as in Example 1 except that no ion batch was added to the polyurethane prepolymer. Similar measurements were made. Table 1 shows the obtained results.
【００３２】〔比較例２〕ポリウレタンのプレポリマー
にＢＨＥＢ、１．４ＢＤ ＴＭＰを添加して１分間攪拌
し、この撹拌物を１５０℃に保った遠心成形機に注入
し、３０分間保持してソリッドのシート（厚さ１ｍｍ）
を得た。これを幅１０ｍｍ，長さ３０ｍｍにカットして
紙葉類分離パッドとした。この紙葉類分離パッドについ
て実施例１と同様の測定を行った。得られた結果を表１
に示した。[Comparative Example 2] BHEB and 1.4BD TMP were added to a polyurethane prepolymer and stirred for 1 minute. This stirred product was poured into a centrifugal molding machine maintained at 150 ° C, and maintained for 30 minutes to obtain a solid. Sheet (thickness 1mm)
I got This was cut into a width of 10 mm and a length of 30 mm to obtain a paper sheet separation pad. The same measurement as in Example 1 was performed on this paper sheet separation pad. Table 1 shows the obtained results.
It was shown to.
【００３３】〔比較例３〕ポリウレタンのプレポリマー
にイオンバッチ（日本カーリット（株）社製、ＨＣ−
１）を０．０５重量％添加すること以外、実施例１と同
様にして紙葉類分離パッドを得て、この紙葉類分離パッ
ドについて実施例１と同様の測定を行った。得られた結
果を表１に示した。[Comparative Example 3] Ion batch (manufactured by Nippon Carlit Co., Ltd., HC-
A sheet separation pad was obtained in the same manner as in Example 1 except that 0.05% by weight of 1) was added, and the same measurement as in Example 1 was performed on this sheet separation pad. Table 1 shows the obtained results.
【００３４】[0034]
【表１】 [Table 1]
【００３５】表１からもわかるように、本発明の実施例
１ないし３は、いずれもその体積抵抗率（Ω・ｃｍ）が
１．０Ｅ＋１０以下で、かつ、飽和耐電圧の半減時間が
５秒以下の導電性発泡体ゴムとすることにより、紙粉付
着量も少なく、更に給紙ミスも０であり、良好な紙葉類
分離パッドを得ることが出来た。また、比較例１、２、
３は、本発明の体積抵抗率（Ω・ｃｍ）の規定および／
または飽和耐電圧の半減時間の規定が満たされていない
場合には、静電気が発生して、紙粉付着量が多く、更に
給紙ミスも多く発生し、良好な紙葉類分離パッドとする
ことが出来なかった。As can be seen from Table 1, all of Examples 1 to 3 of the present invention have a volume resistivity (Ω · cm) of 1.0E + 10 or less and a half-time of saturation withstand voltage of 5 seconds. By using the following conductive foam rubber, the amount of adhering paper powder was small and the number of paper feeding errors was zero, and a good paper sheet separation pad could be obtained. Further, Comparative Examples 1 and 2,
3 is the definition of the volume resistivity (Ω · cm) of the present invention and / or
If the half-life time of the saturation withstand voltage is not satisfied, static electricity will be generated, causing a large amount of paper dust to adhere to the paper and causing many paper feeding errors. Could not be done.
【００３６】以上、本発明の実施形態を説明したが、発
明の要件を逸脱しない限りにおいて、本発明はこれに限
定されるものではない。The embodiments of the present invention have been described above, but the present invention is not limited to these embodiments without departing from the requirements of the invention.
【００３７】[0037]
【発明の効果】以上詳述したように、請求項１の発明に
よれば、紙葉類分離パッドを構成する発泡体ゴムに直接
に導電性を付与してあるため、その発泡構造により紙粉
を取り込み、摩擦係数の低下を遅らせ、且つ静電気を逃
がして紙粉の付着を減らすと共に、紙葉類に溜まった電
荷をも逃がすから、発泡構造による紙粉付着の悪影響の
防止のみならず、帯電による紙粉付着の軽減ならびに紙
葉類の帯電に起因する画像乱れを防ぐことができ、常に
安定して紙葉類を分離供給することが出来る。また、請
求項２の発明によれば、導電性を付与した発泡体ゴムの
体積抵抗率（Ω・ｃｍ）および飽和耐電圧の半減時間を
特定値に定めることにより、帯電防止性を好適に付与
し、上記効果をさらに明確に達成することが出来る。ま
た、請求項３の発明によれば、発泡体ゴムに導電性付与
手段として、カーボンブラックおよび／またはイオン導
電剤を配合することを規定するものであり、これによっ
て製造が容易であり、上記効果を一層容易に達成するこ
とが出来る。また、請求項４の発明によれば、発泡体ゴ
ムに配合するカーボンブラックの配合量を０．２ないし
１０重量％の範囲に規定するものであり、少ない量のカ
ーボンブラックの添加で、紙葉類を汚すこともなく、上
記効果を容易に達成することが出来る。また、請求項５
の発明によれば、発泡体ゴムに配合するイオン導電剤の
配合量を０．１ないし６重量％の範囲に規定するもので
あり、少ない量のイオン導電剤の添加で、紙葉類を汚す
こともなく、上記効果を容易に達成することが出来る。As described above in detail, according to the first aspect of the present invention, since the foam rubber constituting the paper sheet separation pad is directly provided with conductivity, the paper structure is formed by the foamed structure. To reduce the friction coefficient, release static electricity, reduce the adhesion of paper dust, and release the electric charge accumulated in paper sheets. , And the image disturbance due to the electrification of the paper sheets can be prevented, and the paper sheets can be always separated and supplied stably. According to the second aspect of the present invention, the volume resistivity (Ω · cm) and the half-life of the saturation withstand voltage of the foamed rubber having conductivity are set to specific values, so that the antistatic property is suitably imparted. However, the above effects can be more clearly achieved. According to the third aspect of the present invention, the provision of carbon black and / or an ionic conductive agent as a means for imparting conductivity to the foamed rubber is specified, whereby the production is easy, and the above-described effect is obtained. Can be achieved more easily. According to the fourth aspect of the present invention, the amount of carbon black to be compounded in the foamed rubber is defined in the range of 0.2 to 10% by weight. The above effects can be easily achieved without polluting the kind. Claim 5
According to the invention, the amount of the ionic conductive agent to be added to the foamed rubber is specified in the range of 0.1 to 6% by weight, and the addition of a small amount of the ionic conductive agent contaminates paper sheets. Without the above, the above effects can be easily achieved.
【図１】本発明の実施の形態を示す紙葉類分離パッドが
組み込まれたＯＡ機器における給紙装置の側面図であ
る。FIG. 1 is a side view of a sheet feeding device in an OA device incorporating a sheet separation pad according to an embodiment of the present invention.
【図２】本発明の実施の形態を示す紙葉類分離パッドの
平面図である。FIG. 2 is a plan view of the paper sheet separation pad showing the embodiment of the present invention.
１ 給紙装置 ２，２ａ，２ｂ 紙葉類 ３ 給紙部 ４ 給紙ロール４ ５ 給紙口 ６ 紙葉類分離パッド ７ 送出ロール ８ 分離部 DESCRIPTION OF SYMBOLS 1 Paper feeder 2, 2a, 2b Paper leaf 3 Paper feed part 4 Paper feed roll 4 5 Paper feed port 6 Paper leaf separation pad 7 Sending roll 8 Separation part
Claims (5)
たことを特徴とする紙葉類分離パッド。1. A paper sheet separation pad using a foamed rubber provided with conductivity.
０以下で、かつ、飽和耐電圧の半減時間が５．００秒以
下である請求項１記載の紙葉類分離パッド。2. The volume resistivity (Ω · cm) is 1.0E + 1.
The paper sheet separation pad according to claim 1, wherein the half-life of the saturation withstand voltage is 5.00 seconds or less.
および／またはイオン導電剤を配合した請求項１または
２記載の紙葉類分離パッド。3. The paper sheet separation pad according to claim 1, wherein a conductive carbon black and / or an ionic conductive agent is blended as the conductive agent.
て０．２ないし３０重量％配合されている請求項３記載
の紙葉類分離パッド。4. The paper sheet separation pad according to claim 3, wherein the conductive carbon black is blended in an amount of 0.2 to 30% by weight based on the whole composition.
ないし１０重量％配合されている請求項３記載の紙葉類
分離パッド。5. The composition according to claim 1, wherein the ionic conductive agent is contained in an amount of 0.05 to the total composition.
The paper sheet separation pad according to claim 3, which is contained in an amount of from 10 to 10% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001051607A JP2002255386A (en) | 2001-02-27 | 2001-02-27 | Paper separating pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001051607A JP2002255386A (en) | 2001-02-27 | 2001-02-27 | Paper separating pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002255386A true JP2002255386A (en) | 2002-09-11 |
Family
ID=18912360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001051607A Pending JP2002255386A (en) | 2001-02-27 | 2001-02-27 | Paper separating pad |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002255386A (en) |
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|---|---|---|---|---|
| CN100360386C (en) * | 2004-03-26 | 2008-01-09 | 住友橡胶工业株式会社 | Member for preventing feeding of a plurality of sheets at a time |
| CN103935788A (en) * | 2013-01-23 | 2014-07-23 | 住友橡胶工业株式会社 | Sheet feeding member |
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| JPH06298390A (en) * | 1992-12-25 | 1994-10-25 | Hitachi Cable Ltd | Separation plate and separation roller for paper sheet |
| JPH09175670A (en) * | 1995-10-23 | 1997-07-08 | Bridgestone Corp | Paper feeding member and paper feeding device using the member |
| JPH09279015A (en) * | 1996-04-10 | 1997-10-28 | Bridgestone Corp | Conductive member and electrophotographic machine |
| JPH1044260A (en) * | 1996-08-02 | 1998-02-17 | Bridgestone Corp | Roller and its manufacture |
| JPH1059570A (en) * | 1996-08-21 | 1998-03-03 | Fuji Xerox Co Ltd | Paper supply device |
| JPH1165321A (en) * | 1997-08-26 | 1999-03-05 | Sumitomo Rubber Ind Ltd | Production of conductive drum |
| JPH11334915A (en) * | 1998-05-29 | 1999-12-07 | Hokushin Ind Inc | Paper sheet separating member |
| JP2000007990A (en) * | 1998-06-26 | 2000-01-11 | Hokushin Ind Inc | Dielectric part |
| JP2000019855A (en) * | 1998-06-26 | 2000-01-21 | Bridgestone Corp | Intermediate transfer member and image forming device |
| JP2000026719A (en) * | 1998-05-07 | 2000-01-25 | Bridgestone Corp | Electrically conductive member and image-forming device |
| JP2000248186A (en) * | 1999-02-26 | 2000-09-12 | Teijin Ltd | Resin composition and jig for transporting electronic part made of it |
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| JPH05133414A (en) * | 1991-11-07 | 1993-05-28 | Bridgestone Corp | Polyurethane foam for roller |
| JPH06298390A (en) * | 1992-12-25 | 1994-10-25 | Hitachi Cable Ltd | Separation plate and separation roller for paper sheet |
| JPH09175670A (en) * | 1995-10-23 | 1997-07-08 | Bridgestone Corp | Paper feeding member and paper feeding device using the member |
| JPH09279015A (en) * | 1996-04-10 | 1997-10-28 | Bridgestone Corp | Conductive member and electrophotographic machine |
| JPH1044260A (en) * | 1996-08-02 | 1998-02-17 | Bridgestone Corp | Roller and its manufacture |
| JPH1059570A (en) * | 1996-08-21 | 1998-03-03 | Fuji Xerox Co Ltd | Paper supply device |
| JPH1165321A (en) * | 1997-08-26 | 1999-03-05 | Sumitomo Rubber Ind Ltd | Production of conductive drum |
| JP2000026719A (en) * | 1998-05-07 | 2000-01-25 | Bridgestone Corp | Electrically conductive member and image-forming device |
| JPH11334915A (en) * | 1998-05-29 | 1999-12-07 | Hokushin Ind Inc | Paper sheet separating member |
| JP2000007990A (en) * | 1998-06-26 | 2000-01-11 | Hokushin Ind Inc | Dielectric part |
| JP2000019855A (en) * | 1998-06-26 | 2000-01-21 | Bridgestone Corp | Intermediate transfer member and image forming device |
| JP2000248186A (en) * | 1999-02-26 | 2000-09-12 | Teijin Ltd | Resin composition and jig for transporting electronic part made of it |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360386C (en) * | 2004-03-26 | 2008-01-09 | 住友橡胶工业株式会社 | Member for preventing feeding of a plurality of sheets at a time |
| CN103935788A (en) * | 2013-01-23 | 2014-07-23 | 住友橡胶工业株式会社 | Sheet feeding member |
| US20140203497A1 (en) * | 2013-01-23 | 2014-07-24 | Sumitomo Rubber Industries, Ltd. | Sheet feeding member |
| JP2014141326A (en) * | 2013-01-23 | 2014-08-07 | Sumitomo Rubber Ind Ltd | Paper feeding member |
| US9586774B2 (en) | 2013-01-23 | 2017-03-07 | Sumitomo Rubber Industries, Ltd. | Sheet feeding member |
| CN103935788B (en) * | 2013-01-23 | 2017-12-29 | 住友橡胶工业株式会社 | Paper supply component |
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