Colored toner for developing electrostatic images

Colored toner for developing electrostatic images

A colored toner for developing electrostatic images which has a degree of gelation of 2.0% or less and comprises an association of secondary particles containing polymer particles having acidic polar groups or basic polar groups and an organic pigment and/or an organic dye treated with a treatment a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MARUYAMA, MASATOSHI, SHIMOMURA, HIROYOSHI, KAMADA, HIROSHI, OKUDA, KENSUKE, MASUDA, HITOSHI, HASEGAWA, YUKINOBU, SERIZAWA
Format: Patent
Sprache:eng
Schlagworte:
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Beschreibung
Zusammenfassung:A colored toner for developing electrostatic images which has a degree of gelation of 2.0% or less and comprises an association of secondary particles containing polymer particles having acidic polar groups or basic polar groups and an organic pigment and/or an organic dye treated with a treatment agent containing a surface treatment agent which has the same ionic character as the polymer particles so that the absolute value of zeta -potential becomes 10 to 100 mV at pH 5, and a developer for electrostatic images which comprises this colored toner and a carrier.