Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
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United States of America Patent
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Jun 5, 2018
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app pub date -
Apr 19, 2017
filing date -
Aug 26, 2016
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Abstract
An electrostatic charge image developing toner includes toner particles including an amorphous resin and a crystalline resin, wherein, when the toner particles are subjected to a measurement to determine an area ratio of the crystalline resin present on a surface of the toner particle before and after being heated at a temperature of 50° C. and a humidity of 50% RH for a week, a relationship between an area ratio a (%) of the crystalline resin present on a surface of the toner particles before being heated and an area ratio b (%) of the crystalline resin present on a surface of the toner particles after being heated satisfies Expression (1): 0.05≤(b−a)/b≤0.50.
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