Title:
METHOD FOR PREPARING SUSPENSION POLYMERIZATION TONER OF CORE-SHELL STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2014/101359
Kind Code:
A1
Abstract:
A method for preparing suspension polymerization toner of a core-shell structure comprises the following steps: 1) respectively preparing a monomer oil phase containing a certain amount of polar resin and forming toner soft core resin and aqueous dispersion liquid; 2) adding the monomer oil phase into the aqueous dispersion liquid, transferring into a reactor after high-speed shearing and suspension granulation, and carrying out a first heating polymerization reaction to obtain toner particles of a soft-core hard-shell structure; 3) taking the toner particles of the soft-core hard-shell structure as a core layer, adding a cationic monomer component, and carrying out a second polymerization reaction through a water-soluble initiator to obtain the toner particles of the soft-core hard-shell structure with dense charge surface layers evenly distributed on outer surfaces; 4) cleaning, filtering, and sufficiently drying a preceding product, and then adding silicon dioxide. According to characteristics of the polar resin and the cationic monomer component, shell layers with dense charges evenly distributed can be obtained, thus improving electrification uniformity of surfaces of the toner particles and making the toner particles have good low-temperature fixation property and environmental stability.
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Inventors:
LIU ZHIJUN (CN)
ZHANG YUANYUAN (CN)
PU TIANTIAN (CN)
YUAN XIAO (CN)
MENG HONG (CN)
YANG HUI (CN)
ZHANG YUANYUAN (CN)
PU TIANTIAN (CN)
YUAN XIAO (CN)
MENG HONG (CN)
YANG HUI (CN)
Application Number:
PCT/CN2013/073599
Publication Date:
July 03, 2014
Filing Date:
April 02, 2013
Export Citation:
Assignee:
SHENZHEN LEPUTAI TECHNOLOGY CO LTD (CN)
International Classes:
G03G9/093
Foreign References:
| CN101473274A | 2009-07-01 | |||
| CN102207696A | 2011-10-05 | |||
| CN101075100A | 2007-11-21 | |||
| US5958640A | 1999-09-28 | |||
| US20030215729A1 | 2003-11-20 | |||
| JPH0315858A | 1991-01-24 | |||
| US6200718B1 | 2001-03-13 |
Attorney, Agent or Firm:
SHENZHEN HEDAOYINGLIAN PATENT FIRM (GENERAL PARTNERSHIP) (CN)
深圳市合道英联专利事务所（普通合伙） (CN)
深圳市合道英联专利事务所（普通合伙） (CN)
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