发明名称 COLORED MAGNETIC PARTICLES FOR MAGNETOPHORETIC DISPLAY AND METHOD FOR MANUFACTURING SAME
摘要 Colored magnetic particles (10, 10a) for magnetophoretic display capable of substantially preventing peeling of a pigment therefrom, to thereby prevent contamination of a dispersion medium during use of a magnetophoretic display panel (40), and a method for manufacturing the same. The colored magnetic particles (10) include magnetic particle elements (12) and a coloring layer (14) formed on each of the magnetic particle elements (12) from a first dispersion liquid using a coating apparatus (20) of a tumbling, fluidizing and granulating type, to thereby color each of the magnetic particles (12). The first dispersion liquid is constituted of a coloring pigment, synthetic resin and water. The synthetic resin is in the form of an aqueous emulsion. The colored magnetic particles (10) each include a protective layer (16) formed on the coloring layer (14). The protective layer (14) is formed from a second dispersion liquid constituted of synthetic resin dispersed in water.
申请公布号 CA2322970(C) 申请公布日期 2006.08.08
申请号 CA20002322970 申请日期 2000.10.10
申请人 TAKARA CO., LTD.;MARKTEC CORPORATION 发明人 KOYAMA, AKIHIRO
分类号 H01F1/44;B43L1/00;G02F1/09;G02F1/17;G09F9/302;G09F9/37 主分类号 H01F1/44
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