Method for producing toner particles
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United States of America Patent
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Oct 13, 2015
Grant Date -
Oct 9, 2014
app pub date -
Apr 1, 2014
filing date -
Apr 3, 2013
priority date (Note) -
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Abstract
A method for producing toner particles that contain a binder resin having a styrene-acrylic resin as a main component, a colorant, and a block polymer that has polyester segments and vinyl polymer segments, has a step of producing resin particles in accordance with a suspension polymerization method or a dissolution suspension method, and thereafter, holding the temperature of the aqueous medium in which the resin particles are dispersed, for 60 minutes or more, between a glass transition point TgA (° C.) of the resin particles and an onset temperature TmA (° C.) of an endothermic peak derived from the block polymer in the resin particles, in such a manner that a temperature fluctuation rate not greater than 0.35° C./minute, and a temperature fluctuation range is not greater than 20° C.
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