ELECTROSTATIC LATENT IMAGE DEVELOPING TONER AND ELECTROSTATIC LATENT IMAGE DEVELOPING TONER SET
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United States of America Patent
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Issued Date -
Dec 15, 2022
app pub date -
Apr 14, 2022
filing date -
Apr 14, 2022
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Abstract
Provided is an electrostatic latent image developing toner including: toner base particles containing a binder resin and a white pigment; and an external additive, wherein silica particles are contained as the external additive, and the following relational expression (1) is satisfied, Relational expression (1): 0.70≤Wh_Si(B)/Wh_Si(A)≤0.95, in the above relational expression (1), Wh_Si (A) represents an NET intensity of a Si element contained in the white electrostatic latent image developing toner measured by wavelength dispersive X-ray fluorescence spectrometer, and Wh_Si (B) represents an NET intensity of a Si element contained in the white electrostatic latent image developing toner that has been ultrasonically dispersed in water.
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