NONMAGNETIC TONER

PROBLEM TO BE SOLVED: To provide toner capable of providing a high-resolution and high-definition image. SOLUTION: The nonmagnetic toner has toner particles containing resin, a colorant and a release agent and inorganic fine powder, wherein the toner has a viscosity at 100°C of 15,000-45,000 Pa s as...

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Main Authors HANDA TOMOHITO, MIKURIYA YUJI, YANAI SHINYA, YOSHIZAKI KAZUKI, ABE KOJI, ABE NOBUHISA, HASHIMOTO YASUHIRO, TOSAKA EMI
Format Patent
LanguageEnglish
Published 01.05.2008
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide toner capable of providing a high-resolution and high-definition image. SOLUTION: The nonmagnetic toner has toner particles containing resin, a colorant and a release agent and inorganic fine powder, wherein the toner has a viscosity at 100°C of 15,000-45,000 Pa s as measured with a flow tester and satisfies the formula (1): 0≤Et100 (mJ)≤500 and the formula (2): 1.00≤Et10/Et100≤1.60, wherein Et100 (mJ) represents the summation of rotary torque and perpendicular load obtained when a propeller type blade is allowed to enter perpendicularly into a toner powder layer in a container while rotating the blade at a peripheral velocity of the outermost edge of 100 mm/s, measurement is started from a position 100 mm away from the underside of the toner powder layer, and the blade is allowed to enter up to a position 10 mm away from the underside; and Et10 (mJ) represents the summation of rotary torque and perpendicular load upon rotation at 10 mm/s. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20060285992