Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Surface-treating liquid for conductive elastic layer, method of surface treatment of the same, and surface-treated conductive member

A technology of surface treatment liquid and conductivity, which is applied to the device for coating liquid on the surface, the electric recording process using the charge pattern, and the equipment for the electric recording process using the charge pattern, etc., which can solve the problems of durability deterioration, image deterioration, Solve problems such as adhesion, achieve the effect of improving voltage dependence and resistance variation, and preventing deterioration of durability

Inactive Publication Date: 2010-09-22
SUMITOMO RUBBER IND LTD
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially if it is used for a long time, residual toner ions or chemical reagents added to the toner will adhere to the surface of the conductive roller, the image will deteriorate, and there will be a problem of so-called durability deterioration. Parts are the same, and it is necessary to prevent such deterioration of durability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Surface-treating liquid for conductive elastic layer, method of surface treatment of the same, and surface-treated conductive member
  • Surface-treating liquid for conductive elastic layer, method of surface treatment of the same, and surface-treated conductive member
  • Surface-treating liquid for conductive elastic layer, method of surface treatment of the same, and surface-treated conductive member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6、 comparative example 1～4

[0162] [Production of Conductive Roller with Conductive Elastic Layer]

[0163] Using the conductive thermoplastic elastomer composition according to the formulation described in Table 1, a tubular extruded product was produced, a mandrel (shaft) was inserted, and a conductive thermoplastic elastomer composition having a conductive elastic layer on a base material on which a coating layer was formed was produced. sex roll.

[0164] [Table 1]

[0165]

[0166] Specifically, the conductive roller was manufactured by the following method.

[0167] As the base polymer (A), a thermoplastic elastomer combination in which EPDM is dynamically crosslinked and dispersed with a resin crosslinking agent in a mixture of styrene-based thermoplastic elastomer (SEEPS) and polypropylene resin (PP) is used thing.

[0168] First, EPDM is granulated in advance, and the granulated EPDM, styrene-based thermoplastic elastomer (SEEPS), polypropylene resin (PP), crosslinking agent, and softener ar...

Embodiment 1～6

[0191] As the carbon nanotube dispersion (CNT dispersion), commercially available products shown below in which carbon nanotubes were previously dispersed in water were used.

[0192] When adding the main ingredient containing a polyisocyanate compound and water, the water and the main ingredient are mixed, then mixed with the additive, and then the CNT dispersion is added, stirred and mixed with a stirrer, and the surface treatment liquid is prepared.

Embodiment 7～11、 comparative example 5～8

[0255] [Production of Conductive Roller with Conductive Elastic Layer]

[0256] Using the conductive thermoplastic elastomer composition according to the formula described in Table 4, a tubular extruded product was produced, a mandrel (shaft) was inserted, and a conductive thermoplastic elastomer composition having a conductive elastic layer on a base material on which a coating layer was formed was produced. sex roll.

[0257] [Table 4]

[0258]

Element

Recipe amount

(parts by mass)

EPDM

100

SEEPS

24.69

PP

10

crosslinking agent

12

softener

174

[0259]

Element

Recipe amount

(parts by mass)

calcium carbonate

30

carbon black

10

Compatibilizer

6

conductive agent

60

TPEE

50

[0260] The manufacturing method and the components used for the conductive roller 11 are the same as those of the f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

A conductive member of a paper feed roller for use in an electrophotographic apparatus is provided which retains electrical conductivity in an adequate range, is effectively prevented from deteriorating in durability, and is reduced in the voltage dependence of electrical resistance and in resistance unevenness. This conductive member enables satisfactory print quality to be obtained over long. The conductive member comprises: a conductive elastic layer formed from one or more elastic materials selected from the group consisting of rubbers, resins, and thermoplastic elastomers; and a coating layer formed by applying a surface-treating liquid to the outer surface of the conductive elastic layer and then thermally curing the coating. The surface-treating liquid comprises: a medium containing, dispersed and / or dissolved therein, either a polyisocyanate compound or a combination of a polyol compound and an isocyanate compound; and carbon nanotubes dispersed in the medium.

Description

technical field [0001] The present invention relates to a surface treatment solution for a conductive elastic layer, a surface treatment method, and a surface-treated conductive member. Specifically, it is possible to prevent the durability of conductive members such as conductive rollers used in conductive mechanisms such as electrophotographic devices. It can reduce the voltage dependence of the resistance value and the resistance variation while obtaining moderate conductivity, and can obtain good printing quality for a long time. Background technique [0002] In conductive mechanisms such as electrophotographic devices such as printers, electrophotographic copiers, and facsimile devices, or electrostatic recording devices, such as charging rollers for similarly charging photosensitive drums, toner supply rollers for conveying toner, Various conductive members are used, such as a developing roller for adhering toner to a photoreceptor, a transfer roller for transferring a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/00B05D5/12B05D7/02C08J7/04C09D5/24C09D7/12C09D175/04F16C13/00C08J7/043C08J7/044C08J7/046C09D7/62
CPCC08K3/04G03G2215/00396C08J7/047C08J2475/00C09D5/24C08G18/8077C08J2321/00G03G15/1685C08G18/706C08G18/6216C09D7/1291F16C13/00C09D175/04G03G15/0233C08G18/792C08G18/8064C08K3/041Y10T428/25C09D7/70C08J7/0427C09D7/62C08J7/043C08J7/046C08J7/044
Inventor 田岛启奥山英之
Owner SUMITOMO RUBBER IND LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com