TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE

Title:

TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE

Document Type and Number:

WIPO Patent Application WO/2016/010335

Kind Code:

A1

Abstract:

Disclosed is a toner for developing an electrostatic latent image, comprising a plurality of toner particles that include: core particles that contain a binding resin, a coloring agent, and a releasing agent; and external additives attached to the surfaces of the core particles, wherein the toner has two endothermic peaks in a heat curve, which is obtained at the time of the secondary temperature rise in differential scanning calorimetry of the toner, and a stepped endothermic curve; and first and second melting temperatures Tm1 and Tm2, which are determined to be the locations of vertices of the two endothermic peaks, a glass transition temperature Tg, which is determined to be the midpoint of a linear portion of the stepped endothermic curve, and first and second heat of melting △H1 and △H2, which are determined to be the areas of the two endothermic peaks, satisfy the condition set forth in claim 1. The toner exhibits excellent fixedness, fluidity, stability in charging condition, and developability, and can effectively prevent background contamination of a photoreceptor.

Inventors:

YOON SE-YOUNG (KR)
JOO HAE-REE (KR)
CHO SUNG-JUN (KR)

Application Number:

PCT/KR2015/007286

Publication Date:

January 21, 2016

Filing Date:

July 14, 2015

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

G03G9/08

Foreign References:

JP2012083661A	2012-04-26
US20080160443A1	2008-07-03
KR20120095152A	2012-08-28
JP2014085443A	2014-05-12
KR20140059849A	2014-05-16

Other References: