JP2007156435A5 - - Google Patents

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JP2007156435A5
JP2007156435A5 JP2006280213A JP2006280213A JP2007156435A5 JP 2007156435 A5 JP2007156435 A5 JP 2007156435A5 JP 2006280213 A JP2006280213 A JP 2006280213A JP 2006280213 A JP2006280213 A JP 2006280213A JP 2007156435 A5 JP2007156435 A5 JP 2007156435A5
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alcohol
unit represented
developing roller
following formula
degrees
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JP2006280213A
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JP5043395B2 (en
JP2007156435A (en
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Claims (12)

軸体と、
該軸体の周囲を被覆している弾性層とを具備している現像ローラであって、
下記（ａ）と、下記（ｂ）から（ｄ）又は下記（ｂ）及び（ｅ）を含むアルコール群との反応物からなるウレタン樹脂を表面層中に含み、
かつ表面のエチレングリコールに対する接触角が６０．０度以上９０．０度以下であり、かつ、ジヨードメタンに対する接触角が３０．０度以上３８．０度以下であることを特徴とする現像ローラ：
（ａ）イソシアネート
（ｂ）下記式（１）で示されるユニットを含む第１のアルコール；
（ｃ）下記式（２）で示されるユニットを含む第２のアルコール；
（ｄ）下記式（３）で示されるユニットを含む第３のアルコール；
（ｅ）下記式（２）で示されるユニット及び下記式（３）で示されるユニットを含む第４のアルコール：
Figure 2007156435
 （式中ｌは正の整数を示す。）
Figure 2007156435
 （式中ｍは正の整数を示す。）
Figure 2007156435
 （式中ｎは正の整数を示す。）。 A shaft,
A developing roller comprising an elastic layer covering the periphery of the shaft,
The surface layer contains a urethane resin comprising a reaction product of the following (a) and the following (b) to (d) or an alcohol group including the following (b) and (e):
A developing roller having a contact angle with respect to ethylene glycol of the surface of 60.0 degrees or more and 90.0 degrees or less and a contact angle with diiodomethane of 30.0 degrees or more and 38.0 degrees or less:
(A) Isocyanate (b) a first alcohol containing a unit represented by the following formula (1);
(C) a second alcohol containing a unit represented by the following formula (2);
(D) a third alcohol containing a unit represented by the following formula (3);
(E) a fourth alcohol containing a unit represented by the following formula (2) and a unit represented by the following formula (3):
Figure 2007156435
 (In the formula, l represents a positive integer.)
Figure 2007156435
 (In the formula, m represents a positive integer.)
Figure 2007156435
 (Wherein n represents a positive integer). 前記アルコール群の質量比（第１のアルコール：第２のアルコール：第３のアルコール）が、１００：３：２〜１００：２５：２０である請求項１に記載の現像ローラ。 The developing roller according to claim 1, wherein a mass ratio of the alcohol group (first alcohol: second alcohol: third alcohol) is 100: 3: 2 to 100: 25: 20 . 前記アルコール群の質量比（第１のアルコール：第４のアルコール）が、１００：５〜１００：４０である請求項１に記載の現像ローラ。 The developing roller according to claim 1 , wherein a mass ratio (first alcohol: fourth alcohol) of the alcohol group is 100: 5 to 100: 40 . 前記（ｂ）が水酸基を２個以上有する請求項１乃至３の何れか１項に記載の現像ローラ。 The developing roller according to any one of claims 1 to 3 wherein the (b) having two or more hydroxyl groups. 前記（ｃ）が、水酸基を１個有する請求項１乃至４の何れか１項に記載の現像ローラ。 Wherein (c) is, the developing roller according to any one of claims 1 to 4 having one hydroxyl group. 前記（ｄ）が、水酸基を１個有する請求項１乃至５の何れか１項に記載の現像ローラ。 The developing roller according to any one of claims 1 to 5 wherein (d) has one hydroxyl group. 前記（ｅ）が、水酸基を１個有する請求項１乃至６の何れか１項に記載の現像ローラ。 The developing roller according to any one of claims 1 to 6 wherein (e) has one hydroxyl group. 請求項１に記載の現像ローラの製造方法であって、
軸体又は弾性層の周囲を、下記（ａ）と、下記（ｂ）から（ｄ）又は下記（ｂ）及び（ｅ）とを含む組成物で被覆し、次いで該（ａ）と、（ｂ）から（ｄ）又は（ｂ）及び（ｅ）とを反応させて、エチレングリコールに対する接触角が６０．０度以上９０．０度以下であり、かつ、ジヨードメタンに対する接触角が３０．０度以上３８．０度以下の表面を有する表面層を形成する工程を有することを特徴とする現像ローラの製造方法：
（ａ）イソシアネート
（ｂ）下記式（１）で示されるユニットを含む第１のアルコール；
（ｃ）下記式（２）で示されるユニットを含む第２のアルコール；
（ｄ）下記式（３）で示されるユニットを含む第３のアルコール；
（ｅ）下記式（２）で示されるユニット及び下記式（３）で示されるユニットを含む第４のアルコール：
Figure 2007156435
 （式中ｌは正の整数を示す。）
Figure 2007156435
 （式中ｍは正の整数を示す。）
Figure 2007156435
 （式中ｎは正の整数を示す。）。 It is a manufacturing method of the developing roller according to claim 1,
The periphery of the shaft body or the elastic layer is coated with a composition containing the following (a) and the following (b) to (d) or the following (b) and (e), and then the (a) and (b ) To (d) or (b) and (e), the contact angle with respect to ethylene glycol is 60.0 degrees or more and 90.0 degrees or less, and the contact angle with diiodomethane is 30.0 degrees or more. A method for producing a developing roller, comprising a step of forming a surface layer having a surface of 38.0 degrees or less:
(A) Isocyanate (b) a first alcohol containing a unit represented by the following formula (1);
(C) a second alcohol containing a unit represented by the following formula (2);
(D) a third alcohol containing a unit represented by the following formula (3);
(E) a fourth alcohol containing a unit represented by the following formula (2) and a unit represented by the following formula (3):
Figure 2007156435
 (In the formula, l represents a positive integer.)
Figure 2007156435
 (In the formula, m represents a positive integer.)
Figure 2007156435
 (Wherein n represents a positive integer). 前記（ｂ）が水酸基を２個以上、前記（ｃ）が水酸基を１個、前記（ｄ）が水酸基を１個及び前記（ｅ）が水酸基を１個有するアルコールである請求項８に記載の現像ローラの製造方法。 Wherein (b) is two or more hydroxyl groups, wherein (c) is one hydroxyl group, wherein (d) is one and the hydroxyl group (e) is as defined in claim 8 is an alcohol having one hydroxyl group A method for manufacturing a developing roller. 請求項１乃至７のいずれか１項に記載の現像ローラと、現像剤供給ローラとを少なくとも有することを特徴とする現像装置。 Development roller and a developing device, characterized in that it comprises at least a developer supply roller according to any one of claims 1 to 7. 前記現像剤供給ローラが、芯金と、該芯金の周りに形成された発泡弾性層とを備え、該発泡弾性層が、シリコーンとポリエーテルの共重合体を含有する請求項１０に記載の現像装置。 The developer supply roller includes a cored bar and a foamed elastic layer formed around the cored bar, and the foamed elastic layer contains a copolymer of silicone and polyether. Development device. 静電潜像を担持するための像担持体と、該像担持体を一次帯電するための帯電装置と、一次帯電された像担持体に静電潜像を形成するための露光装置と、該静電潜像を現像剤により現像して現像剤画像を形成するための現像装置と、該現像剤画像を転写材に転写するための転写装置とを有する画像形成装置において、該現像装置として、請求項１０又は１１に記載の現像装置を有することを特徴とする画像形成装置。 An image carrier for carrying an electrostatic latent image; a charging device for primarily charging the image carrier; an exposure device for forming an electrostatic latent image on the primary charged image carrier; In an image forming apparatus having a developing device for developing an electrostatic latent image with a developer to form a developer image and a transfer device for transferring the developer image to a transfer material, the developing device includes: An image forming apparatus comprising the developing device according to claim 10.
JP2006280213A 2005-11-10 2006-10-13 Developing roller and manufacturing method thereof, developing device and image forming apparatus Active JP5043395B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006280213A JP5043395B2 (en) 2005-11-10 2006-10-13 Developing roller and manufacturing method thereof, developing device and image forming apparatus

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Application Number Priority Date Filing Date Title
JP2005326168 2005-11-10
JP2005326168 2005-11-10
JP2006280213A JP5043395B2 (en) 2005-11-10 2006-10-13 Developing roller and manufacturing method thereof, developing device and image forming apparatus

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JP2007156435A JP2007156435A (en) 2007-06-21
JP2007156435A5 true JP2007156435A5 (en) 2009-11-26
JP5043395B2 JP5043395B2 (en) 2012-10-10

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5079134B2 (en) * 2010-12-28 2012-11-21 キヤノン株式会社 Developing roller, process cartridge, and electrophotographic apparatus
JP6023604B2 (en) * 2012-02-17 2016-11-09 キヤノン株式会社 Developing member, process cartridge, and electrophotographic apparatus
JP5631447B2 (en) * 2012-06-27 2014-11-26 キヤノン株式会社 Electrophotographic member, process cartridge, and electrophotographic apparatus
JP6104068B2 (en) * 2012-06-27 2017-03-29 キヤノン株式会社 Developing member, process cartridge, and electrophotographic apparatus
JP5230838B1 (en) * 2012-06-27 2013-07-10 キヤノン株式会社 Developing device and electrophotographic image forming apparatus
JP6234219B2 (en) * 2013-12-26 2017-11-22 キヤノン株式会社 Developing device, developing method, image forming apparatus, and image forming method

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* Cited by examiner, † Cited by third party
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JP4127735B2 (en) * 1998-10-02 2008-07-30 株式会社ブリヂストン Conductive polymer member, image forming apparatus component using the same, and image forming apparatus
JP2000219717A (en) * 1999-02-02 2000-08-08 Bridgestone Corp Conductive member and image formation apparatus
JP3923217B2 (en) * 1999-05-24 2007-05-30 株式会社ブリヂストン Conductive polyurethane member, image forming apparatus component using the same, and image forming apparatus
JP4614491B2 (en) * 2000-02-02 2011-01-19 株式会社ブリヂストン Polymer elastic member, image forming apparatus component using the same, and image forming apparatus
JP2003140421A (en) * 2001-11-01 2003-05-14 Bridgestone Corp Conductive member and electrophotographic device
JP2003167398A (en) * 2001-09-19 2003-06-13 Bridgestone Corp Electrically conductive member and electrophotographic apparatus
JP4920953B2 (en) * 2005-11-10 2012-04-18 キヤノン株式会社 Image forming method

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