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Conductive composition for electrophotographic apparatuses and conductive roll for electrophotographic apparatuses using same

An electrophotography and conductive roller technology, applied in the field of conductive rollers, can solve the problems of easy roughness, slow moving speed, and high viscosity, etc., and achieve the effects of reducing the amount of addition, reducing resistance, and improving cationicity

Active Publication Date: 2015-07-08
TOKAI RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, kneading of carbon black can achieve low resistance, but there are problems such as high viscosity, low productivity, and roughness
In addition, ion-conducting agents move slower due to their larger ionic radii than electrons

Method used

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  • Conductive composition for electrophotographic apparatuses and conductive roll for electrophotographic apparatuses using same
  • Conductive composition for electrophotographic apparatuses and conductive roll for electrophotographic apparatuses using same
  • Conductive composition for electrophotographic apparatuses and conductive roll for electrophotographic apparatuses using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1～1-14

[0101] [Examples 1-1 to 1-14, Comparative Examples 1-1 to 1-4 (toner supply roller)]

[0102] Each component was prepared so that it might become the compounding ratio (unit: mass part) shown in Table 4-Table 6, and it mixed with the mixer, and the composition of the urethane foam of Example and a comparative example was prepared. Details of the materials shown in Tables 4 to 6 are as follows.

[0103] [raw materials of urethane foam]

[0104] (Polyether polyol)

[0105] ・Manufactured by Sanyo Chemical Co., Ltd., trade name "Sannitux FA703", EO content: 10%, OHv: 33 mgKOH / g

[0106] ・Manufactured by Asahi Glass Co., trade name "EXCENOL3021", EO content: 0%, OHv: 34mgKOH / g

[0107] (silicone foam stabilizer)

[0108] ・Manufactured by Toray Dou Corning Co., Ltd., product name "SRX274DL"

[0109] (foaming agent)

[0110] Distilled water: OHv: 6233mgKOH / g

[0111] (Ion Conductive Agent): Refer to Table 1 to Table 3

[0112] (catalyst)

[0113] ・Manufactured by Tosoh Corpo...

Embodiment 2-1～2-2、 comparative example 2-1

[0137] [Examples 2-1 to 2-2, Comparative Example 2-1 (Charging Roller)]

[0138] Each component was prepared so that it might become the compounding ratio (unit: mass part) shown in Table 7, and it mixed with the mixer, and prepared the composition of the basic compounding and coating film compounding of an Example and a comparative example. The details of the materials shown in Table 7 are as follows.

[0139] [Basic deployment at the grassroots level]

[0140] ・ECO: Manufactured by Daiso Co., Ltd., trade name "Ebitaroma-CG102"

[0141] ・Carbon black: manufactured by Tokai Carbon Co., Ltd., trade name "Shi-St 116"

[0142] · Peroxide: 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane: manufactured by NOF Corporation, brand name "Parhekisa 25B40"

[0143] · Ion conductive agent: refer to Table 1 and Table 3

[0144] [Surface Coating Formulation]

[0145] · N-methoxymethylated nylon

[0146] · Citric acid

[0147] · Methanol

[0148] · Ion conductive agent: refer to Table 1 a...

Embodiment 3-1～3-2、 comparative example 3-1

[0166] [Examples 3-1 to 3-2, Comparative Example 3-1 (developing roller)]

[0167] Each component was prepared so that it might become the compounding ratio (unit: mass part) shown in Table 8, and it mixed with the mixer, and prepared the composition of the basic compounding of an Example and a comparative example, and a coating film compounding. The details of the materials shown in Table 8 are as follows.

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Abstract

Provided are: a conductive composition for electrophotographic apparatuses, which is capable of reducing the resistance even in cases where an ion conductive agent is used; and a conductive roll for electrophotographic apparatuses. A conductive roll (1) is configured using a conductive composition, which contains a polar polymer and a quaternary ammonium salt represented by formula (1) and serving as a conductivity-imparting agent, in at least one of a base layer (3), a surface layer (4) and an intermediate layer (5), said layers being formed around a shaft body (2). In formula (1), each of R1-R3 represents a C1-C14 alkyl group; R4 represents a methacrylate group or an acrylate group; X- represents an anion, which is bistrifluoromethane sulfonimide, triflate or fluorosulfonyl imide; and A represents an alkylene group.

Description

technical field [0001] The present invention relates to a conductive composition used in electrophotographic equipment such as copiers, printers, facsimile machines, and a conductive roller used in the above electrophotographic equipment using the above conductive composition. Background technique [0002] In recent years, electrophotographic equipment such as copiers, printers, and facsimile machines employing an electrophotographic method has been widely used. In an electrophotographic apparatus, a photosensitive drum is generally installed, and various elastic rollers such as a charging roller, a developing roller, a transfer roller, and a toner supply roller are disposed around the photosensitive drum. [0003] A conductive roller for an electrophotographic device generally includes a shaft body, and a conductive rubber elastic layer formed on the outer peripheral surface of the shaft body. Furthermore, an intermediate layer such as a resistance adjustment layer, a surf...

Claims

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Application Information

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IPC IPC(8): G03G15/08G03G15/00G03G15/02G03G15/16
CPCG03G5/00G03G2215/00957G03G15/75G03G15/0233H01B1/20H01B1/22
Inventor 伊东邦夫石原基晴远山和德
Owner TOKAI RUBBER IND LTD
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