发明名称 |
PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC TONER |
摘要 |
The present invention relates to a process for producing a toner for electrophotography which is capable of suppressing liberation of a wax from a resin binder and exposure of the wax to a surface of respective toner particles in the step of obtaining fused particles upon production of the toner, and reducing a content of fine powders in the toner, and which is characterized by an excellent low-temperature fusing property and an excellent anti-high-temperature offset property. The process for producing a toner for electrophotography according to the present invention includes the following steps 1 to 3: Step 1 of mixing and emulsifying a wax, a resin emulsion containing a resin having an acid value of from 10 to 300 mgKOH/g, and an oxazoline group-containing polymer with each other to obtain a water dispersion of releasing agent particles; Step 2 of mixing and aggregating the water dispersion of the releasing agent particles obtained in the step 1 with a water dispersion of resin particles containing a carboxyl group-containing resin binder to obtain aggregated particles; and Step 3 of fusing the aggregated particles obtained in the step 2 to obtain fused particles. |
申请公布号 |
EP2905658(A4) |
申请公布日期 |
2016.05.25 |
申请号 |
EP20130844377 |
申请日期 |
2013.10.04 |
申请人 |
KAO CORPORATION |
发明人 |
SHIDAHARA, YASUHIRO;IKEDA, MANATO;MIZUHATA, HIROSHI;SHIMOKUSA, KOJI |
分类号 |
G03G9/087;G03G9/08 |
主分类号 |
G03G9/087 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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