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Toner for electrostatic latent image development and image forming method

An electrostatic latent image and toner technology, which is applied in developer, electrography, optics, etc., can solve the problems of difficult to maintain transfer ability for a long time, insufficient fixation, etc., and achieve resource saving, pollution-free, and high image quality. , the effect of improving durability

Active Publication Date: 2011-06-22
KONICA MINOLTA BUSINESS TECH INC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] Therefore, as described in JP 2002-108001A, the sol-gel method silica with improved electrical insulation (low charge exchange ability) is used as an external additive to sufficiently ensure the transferability in the initial stage, but the sol-gel method Insufficient fixation of silica to toner, making it difficult to maintain improved transferability over a long period of time

Method used

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  • Toner for electrostatic latent image development and image forming method
  • Toner for electrostatic latent image development and image forming method

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specific example

[0076] Colorants usable in the toner relating to the present invention include colorants known in the art, and specific examples thereof are as follows:

[0077] Examples of the black colorant used in the black toner include carbon black such as furnace black, channel black, acetylene black, thermal black, lamp black, and the like.

[0078] Further, the coloring agent used for color toner adopts organic compound pigment or dyestuff, specific examples are as follows:

[0079] Magenta or red colorants include C.I. Pigment Red 2, C.I. Pigment Red 3, C.I. Pigment Red 5, C.I. Pigment Red 6, C.I. Pigment Red 7, C.I. Pigment Red 15, C.I. Pigment Red 16, C.I. Pigment Red 48, C.I. Pigment Red Pigment Red 53:1, C.I. Pigment Red 57:1, C.I. Pigment Red 60, C.I. Pigment Red 63, C.I. Pigment Red 64, C.I. Pigment Red 68, C.I. Pigment Red 81, C.I. Pigment Red 83, C.I. Pigment Red 87, C.I. Pigment Red 88 , C.I. Pigment Red 89, C.I. Pigment Red 90, C.I. Pigment Red 112, C.I. Pigment Red 114, C...

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Abstract

A toner for electrostatic latent image development is disclosed, comprising colored particles containing a binder resin and a colorant, and an external-additive, wherein the external additive comprises boron nitride particles exhibiting a number average primary particle size of 10 to 500 nm. The production method of the toner is also disclosed.

Description

[0001] This application claims priority from Japanese Patent Application No. 2009-287402 filed on December 18, 2009, which is hereby incorporated by reference. technical field [0002] The present invention relates to a toner for developing an electrostatic latent image and an image forming method using the toner. Background technique [0003] In recent years, there has been a demand for high-performance image forming apparatuses, and more importantly, image formation of which can maintain stable performance and high image quality over a long period of time without negatively affecting resource conservation. [0004] Therefore, in order to find a solution, it is important to improve the transferability of toner images. Improving transferability is necessary to form high-quality images for a long period of time. In addition to this advantage, it leads to advantages such as reduced toner consumption and simplification of the toner recovery system, and makes it easier to adopt...

Claims

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Application Information

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IPC IPC(8): G03G9/08G03G9/097
CPCG03G9/0812G03G9/0808G03G9/09708
Inventor 小原慎也安野政裕内野哲茂谷瞳春木秀仁
Owner KONICA MINOLTA BUSINESS TECH INC
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