EP 2490074 A2 20120822 - ELECTROSTATIC IMAGE-DEVELOPING TONER
Title (en)
ELECTROSTATIC IMAGE-DEVELOPING TONER
Title (de)
TONER ZUR ENTWICKLUNG ELEKTROSTATISCHER BILDER
Title (fr)
TONER DE DÉVELOPPEMENT D'IMAGE ÉLECTROSTATIQUE
Publication
Application
Priority
- KR 20090073671 A 20090811
- KR 2010005220 W 20100810
Abstract (en)
The present invention relates to an electrostatic image-developing toner which contains binding resin, a coloring agent, and a releasing agent, as well as to a toner composition and to a method for producing the toner composition. The electrostatic image-developing toner is produced by: (1) a suspension polymerization process (S1) comprising: 1-1) a step of preparing an aqueous dispersion medium; 1-2) a step of dispersing and dissolving a polymerizable monomer mixture; 1-3) a droplet-preparing step of micronizing the liquid prepared in step 1-2) into the liquid prepared in the step 1-1) with high shearing force; and 1-4) a step of radically polymerizing the microparticle liquid droplet prepared in step 1-3); (2) a seeded polymerization process (S2) comprising: 2-1) a step of dissolving and dispersing the releasing agent; and 2-2) a step of the seeded polymerization of the liquid prepared in step 2-1); (3) a process in which particles produced in the suspension polymerization process (S1) and in the seeded polymerization process (S2) agglomerate; (4) a process of fusing the particles agglomerated in process (3) by means of heat; (5) a process of cleaning and drying the toner produced in the process (4); and (6) a process of adding an agent for providing the toner produced in the process (5) with electrostatic properties and flowability.
IPC 8 full level
G03G 9/08 (2006.01); G03G 9/087 (2006.01); G03G 9/097 (2006.01)
CPC (source: EP KR)
G03G 9/08 (2013.01 - KR); G03G 9/0804 (2013.01 - EP); G03G 9/0806 (2013.01 - EP); G03G 9/0819 (2013.01 - EP); G03G 9/0821 (2013.01 - EP); G03G 9/0827 (2013.01 - EP); G03G 9/087 (2013.01 - KR); G03G 9/0975 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2490074 A2 20120822; EP 2490074 A4 20140709; CN 102576201 A 20120711; CN 102576201 B 20140115; KR 101126576 B1 20120320; KR 20110016127 A 20110217; WO 2011019180 A2 20110217; WO 2011019180 A3 20110616
DOCDB simple family (application)
EP 10808329 A 20100810; CN 201080042142 A 20100810; KR 20090073671 A 20090811; KR 2010005220 W 20100810