JPH0270636A - Paper feed roll - Google Patents
Paper feed rollInfo
- Publication number
- JPH0270636A JPH0270636A JP22031388A JP22031388A JPH0270636A JP H0270636 A JPH0270636 A JP H0270636A JP 22031388 A JP22031388 A JP 22031388A JP 22031388 A JP22031388 A JP 22031388A JP H0270636 A JPH0270636 A JP H0270636A
- Authority
- JP
- Japan
- Prior art keywords
- paper feed
- weight
- coefficient
- friction
- feed roller
- 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
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims abstract description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920001577 copolymer Polymers 0.000 claims abstract description 7
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims abstract 4
- 150000001993 dienes Chemical class 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 claims description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- 229910052740 iodine Inorganic materials 0.000 claims description 3
- 239000011630 iodine Substances 0.000 claims description 3
- 230000006866 deterioration Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 description 6
- 229920002943 EPDM rubber Polymers 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000004073 vulcanization Methods 0.000 description 3
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 241001441571 Hiodontidae Species 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000010692 aromatic oil Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- PGAXJQVAHDTGBB-UHFFFAOYSA-N dibutylcarbamothioylsulfanyl n,n-dibutylcarbamodithioate Chemical compound CCCCN(CCCC)C(=S)SSC(=S)N(CCCC)CCCC PGAXJQVAHDTGBB-UHFFFAOYSA-N 0.000 description 1
- 229940116901 diethyldithiocarbamate Drugs 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- ILXWFJOFKUNZJA-UHFFFAOYSA-N ethyltellanylethane Chemical group CC[Te]CC ILXWFJOFKUNZJA-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000010690 paraffinic oil Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、電子複写機、ファクシミリ、プリンタ等の装
置に用いられる給紙ローラに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper feed roller used in devices such as electronic copying machines, facsimile machines, and printers.
［従来の技術］
上記各種装置には用紙を給送するための給紙ローラが用
いられており、この給紙ローラの表面は給紙を確実に行
うために所定の摩擦係数を有するゴム層で形成されてい
る。従来用いられているゴム素材としては、ノルボーネ
ン重合体、ウレタン、クロロプレンゴム、シリコンゴム
等がある。[Prior Art] The various devices mentioned above use a paper feed roller for feeding paper, and the surface of this paper feed roller is made of a rubber layer having a predetermined coefficient of friction to ensure paper feeding. It is formed. Conventionally used rubber materials include norbornene polymer, urethane, chloroprene rubber, and silicone rubber.
［発明が解決しようとする課題］
しかし上記の素材から成るゴム層は、特に電子複写機、
ファクシミリ等の光学式装置を用いた場合に、紫外線の
照射によって表面が劣化し、ゴム層表面の紙に対する摩
擦係数が短期間で低下してしまう問題があった。ノルボ
ーネン重合体にカーボンブラックを含ませて紫外線照射
による摩擦係数低下を防止した技術（実開昭６１−１１
６６４３号）が知られているが、カーボンブラックを必
須の成分とするこの発明は黒色以外のローラに適用する
ことができない。[Problems to be Solved by the Invention] However, the rubber layer made of the above-mentioned material cannot be used particularly in electronic copying machines,
When an optical device such as a facsimile is used, there is a problem in that the surface deteriorates due to irradiation with ultraviolet rays, and the coefficient of friction of the surface of the rubber layer against paper decreases in a short period of time. Technology that prevents a decrease in the coefficient of friction due to ultraviolet irradiation by incorporating carbon black into a norbornene polymer
No. 6643) is known, but this invention, which includes carbon black as an essential component, cannot be applied to rollers other than black.
本発明は上記従来技術の問題点を解決するためになされ
たものであって、紫外線゛による摩擦係数低下が少なく
、しかもローラの色が黒色に限定されない給紙ローラを
提供することを目的とする。The present invention has been made in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a paper feed roller which has less reduction in friction coefficient due to ultraviolet rays and whose color is not limited to black. .
［課題を解決するための手段］
本発明の給紙ローラは、エチレン・プロピレン・非共役
ジエン共重合体ｉｏｏ ｍｔ部に対して、軟化剤１００
〜３００重量部、酸化チタン１０〜３００重量部含むゴ
ム層を表面に有することを特徴とする。[Means for Solving the Problems] The paper feed roller of the present invention contains 100% of a softening agent per ioo mt part of an ethylene-propylene-nonconjugated diene copolymer.
It is characterized by having a rubber layer on its surface containing ~300 parts by weight and 10 to 300 parts by weight of titanium oxide.
エチレン・プロピレン・非共役ジエン共重合体（以下、
ＥＰＤＭと記す）の非共役ジエンとしては、代表的には
シンクロペンタジエン、エチリデンノルボーネンが挙げ
られるが、他の非共役ジエンも用いることができる。Ｅ
ＰＤＭは好ましくはヨウ素価６〜２４、重合原料中のエ
チレンが５０〜１５重量％のものを用いる。また、成型
性の点で、粘度はＭＬ （１００℃） （ムーニー
粘度計にて温１令４
度１００℃、Ｌローターを使用し、１分間予熱して４分
後の数値）が５０〜３０Ｇのものが好ましい。Ethylene-propylene-nonconjugated diene copolymer (hereinafter referred to as
Typical examples of the non-conjugated diene (denoted as EPDM) include synchropentadiene and ethylidene norbornene, but other non-conjugated dienes can also be used. E
The PDM used preferably has an iodine value of 6 to 24 and an ethylene content of 50 to 15% by weight in the polymerization raw material. In addition, in terms of moldability, the viscosity is ML (100℃) (value after 4 minutes after preheating for 1 minute using an L rotor at 100℃ using a Mooney viscometer and preheating for 1 minute) is 50 to 30G. Preferably.
軟化剤としてはパラフィン系油、ナフテン系油、芳香族
系油を用いることができ、これはＥＰＤＭ１００重量部
に対して１００〜３００重量部の範囲で用いられる。軟
化剤の量が１００重量部より少ないとローラが硬質化し
、ゴム弾性の点で好ましくなく、３００重量部より多い
と、ブリードを生ずるので′好ましくない。As the softener, paraffinic oil, naphthenic oil, or aromatic oil can be used, and this is used in an amount of 100 to 300 parts by weight based on 100 parts by weight of EPDM. If the amount of the softener is less than 100 parts by weight, the roller becomes hard, which is undesirable from the viewpoint of rubber elasticity, and if it is more than 300 parts by weight, bleeding may occur, which is undesirable.
酸化チタンは、２．３．４価チタンの酸化物が知られて
いるが、好ましくは二酸化チタン（Ｔｉ０２）のルチル
型構造のものを用いる。酸化チタンはＥＰＤＭＩＧＯ重
量部に対して１０〜３００重量部の範囲で用いられ、こ
れより少ないと摩擦係数の低下を防止する効果が少なく
、これより多いとローラが硬質化するので好ましくない
。As titanium oxide, oxides of 2, 3, and 4 valent titanium are known, but titanium dioxide (Ti02) having a rutile structure is preferably used. Titanium oxide is used in a range of 10 to 300 parts by weight based on the weight part of EPDM IGO, and if it is less than this, there is little effect of preventing a decrease in the friction coefficient, and if it is more than this, the roller becomes hard, which is not preferable.
本発明に用いるゴム層の素材としては上記成分の他に、
硫黄、加硫促進剤、加硫促進助剤、その他各種充填刑を
含ませてもよい、これらの添加剤としては、例えば、加
硫促進剤として、ジ−ｎ−ジプチル・ジチオカルバミン
酸亜鉛、２−メルカプトベンゾチアゾール、テトラメチ
ルチウラム・ジスルフィド、ジエチル・ジチオカルバミ
ン酸テルル、テトラブチルチウラム・ジスルフィド、加
硫促進助剤として、ステアリン酸、酸化亜鉛、充填剤と
して、炭酸カルシウム、シリカ、各種クレイを用いるこ
とができる。In addition to the above-mentioned components, materials for the rubber layer used in the present invention include:
Sulfur, vulcanization accelerators, vulcanization accelerating aids, and various other fillers may be included. Examples of these additives include zinc di-n-diptyl dithiocarbamate, 2 - Using mercaptobenzothiazole, tetramethylthiuram disulfide, tellurium diethyl dithiocarbamate, tetrabutylthiuram disulfide, stearic acid, zinc oxide as a vulcanization accelerator, calcium carbonate, silica, and various clays as fillers. Can be done.
［作用］
上記構成から成る本発明の給紙ローラは、特にＥＰＤＭ
に酸化チタンを含ませたことにより、紫外線照射による
摩擦係数の経時的低下が抑制される。[Function] The paper feed roller of the present invention having the above configuration is particularly suitable for EPDM.
By including titanium oxide in the material, a decrease in the coefficient of friction over time due to ultraviolet irradiation is suppressed.
［実施例］
第１表上欄に示す割合の原料で給紙ローラ用のゴム材を
作製し、これに紫外線を照射させて、その照射前後の摩
擦係数を測定し、結果を第１表下欄に示した。なお、Ｅ
ＰＤＭはヨウ素価１２、原料中エチレン含量７０′Ｍ量
％、Ｍ Ｌ ｂ４ （１００℃）２４０、非共役ジエン
がエチリデンノルボーネンのものを用いた。摩擦係数は
、平滑で変形しない面上に固定された上質紙（四六板連
量５５ｋｌＪ）の上に、全体の垂直荷重が１００ｇとな
るように調整した外径３０＋ｅ＋ｅ、長さ３０１１１１
の回転しないように固定したロールを載せ、低側を速度
１００１１１１７ Ｎｎにて引張り、その時の摩擦力Ｆ
を測定してＦ／１０Ｇにて算出した。[Example] A rubber material for a paper feed roller was prepared using raw materials in the proportions shown in the upper column of Table 1, and the material was irradiated with ultraviolet rays, and the coefficient of friction before and after the irradiation was measured. The results are shown in the lower part of Table 1. Shown in the column. In addition, E
The PDM used had an iodine value of 12, an ethylene content in the raw material of 70'M%, an M L b4 (100° C.) of 240, and a non-conjugated diene containing ethylidene norbornene. The coefficient of friction was determined by placing a piece of high-quality paper (46-board weight 55klJ) fixed on a smooth, undeformable surface, with an outer diameter of 30+e+e and a length of 301111 adjusted so that the total vertical load was 100g.
A fixed roll is placed so that it does not rotate, and the low side is pulled at a speed of 10011117 Nn, and the frictional force F at that time is
was measured and calculated using F/10G.
第１表
［重量部］
この結果より、酸化チタンを添加しない比較例１．２の
ものより、本発明実施例１，２の方が紫外線照射による
摩擦係数低下の割合が少ないことがわかる。Table 1 [Parts by weight] From these results, it can be seen that the rate of decrease in the coefficient of friction due to ultraviolet irradiation is smaller in Examples 1 and 2 of the present invention than in Comparative Examples 1 and 2 in which titanium oxide was not added.
［発明の効果］
以上説明した通り、本発明は特にＥＰＤＭと酸化チタン
を用いたことにより、紫外線照射による摩擦係数低下の
少ない給紙ローラを提供できると共に、酸化チタンが白
色であるため、ローラのゴム層に着色することも可能で
ある。[Effects of the Invention] As explained above, the present invention uses EPDM and titanium oxide in particular to provide a paper feed roller with less reduction in friction coefficient due to ultraviolet irradiation, and since titanium oxide is white, the roller It is also possible to color the rubber layer.
Claims (3)
００重量部に対して、軟化剤１００〜３００重量部、酸
化チタン１０〜３００重量部含むゴム層を表面に有する
ことを特徴とする給紙ローラ。(1) Ethylene/propylene/nonconjugated diene copolymer 1
1. A paper feed roller having a rubber layer on its surface containing 100 to 300 parts by weight of a softener and 10 to 300 parts by weight of titanium oxide.
体の非共役ジエンが、シンクロペンタジエン、エチリデ
ンノルボーネンから選択される請求項第（１）項に記載
の給紙ローラ。(2) The paper feed roller according to item (1), wherein the non-conjugated diene of the ethylene-propylene-non-conjugated diene copolymer is selected from synchropentadiene and ethylidene norbornene.
体のヨウ素価が６〜２４の範囲、原料エチレンが５０〜
１５重量％の範囲である請求項第（１）項に記載の給紙
ローラ。(3) The iodine value of the ethylene/propylene/non-conjugated diene copolymer is in the range of 6 to 24, and the raw material ethylene is in the range of 50 to 24.
The paper feed roller according to claim 1, wherein the amount is in the range of 15% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22031388A JPH0270636A (en) | 1988-09-05 | 1988-09-05 | Paper feed roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22031388A JPH0270636A (en) | 1988-09-05 | 1988-09-05 | Paper feed roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0270636A true JPH0270636A (en) | 1990-03-09 |
Family
ID=16749185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22031388A Pending JPH0270636A (en) | 1988-09-05 | 1988-09-05 | Paper feed roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0270636A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0577508A (en) * | 1991-09-21 | 1993-03-30 | Sumitomo Rubber Ind Ltd | Elastomer roller |
| JPH05147763A (en) * | 1991-11-28 | 1993-06-15 | Arai Pump Mfg Co Ltd | Rubber compounded composition for register roller |
| US5725209A (en) * | 1994-09-30 | 1998-03-10 | Canon Kabushiki Kaisha | Sheet supply apparatus |
| EP1316584A2 (en) * | 2001-11-30 | 2003-06-04 | Sumitomo Rubber Industries, Ltd. | Paper-feeding roller |
-
1988
- 1988-09-05 JP JP22031388A patent/JPH0270636A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0577508A (en) * | 1991-09-21 | 1993-03-30 | Sumitomo Rubber Ind Ltd | Elastomer roller |
| US6032943A (en) * | 1991-09-21 | 2000-03-07 | Sumitomo Rubber Industries, Ltd. | Elastic roller |
| JPH05147763A (en) * | 1991-11-28 | 1993-06-15 | Arai Pump Mfg Co Ltd | Rubber compounded composition for register roller |
| US5725209A (en) * | 1994-09-30 | 1998-03-10 | Canon Kabushiki Kaisha | Sheet supply apparatus |
| EP1316584A2 (en) * | 2001-11-30 | 2003-06-04 | Sumitomo Rubber Industries, Ltd. | Paper-feeding roller |
| EP1316584A3 (en) * | 2001-11-30 | 2003-08-20 | Sumitomo Rubber Industries, Ltd. | Paper-feeding roller |
| US6793611B2 (en) | 2001-11-30 | 2004-09-21 | Sumitomo Rubber Industries, Ltd. | Paper feeding roller |
| CN100341755C (en) * | 2001-11-30 | 2007-10-10 | 住友橡胶工业株式会社 | Paper feed roller and method for producing paper feed roller |
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