Konica Minolta, Inc.

Kazumi Oura

Masaharu Matsubara

Hiroshi Nagasawa

Kouji Sugama

Junya Onishi

Koji Shibata

Michiyo Fujita

Kaori Matsushima

Tatsuya Fujisaki

Makoto Nomiya

Ikuko Sakurada

Natsuki Ito

Akihiko Itami

Kaori Fujino

Provided is an electrostatic charge image developing toner including toner base particles containing a binder resin an a mold release agent, wherein a molecular weight corresponding to a main peak top of a molecular weight distribution curve of constituent components of the electrostatic charge image developing toner obtained by gel permeation chromatography is 15,000 or more; and in comparison of an area ratio of each peak in the molecular weight distribution curve, the binder resin contains an amorphous material of a low molecular weight component having a weight average molecular weight of 300 or more and less than 1000 in the area ratio of 10 to 20% with respect to the total amount of the binder resin.

Electrostatic charge image developing toner, production method of same, and electrophotographic image forming method

Disclosed is an image forming method including: developing, with an electrostatic charge image developing toner, a latent image formed on a photoreceptor in which a photosensitive layer is formed on a support containing aluminum as a main component; transferring a toner image on the photoreceptor onto a transfer target; and rubbing and removing the electrostatic charge image developing toner remaining on the photoreceptor after the transferring. The support contains silicon in a range of more than 0.6% by mass and 12.6% by mass or less, a shape factor of toner particles included in the electrostatic charge image developing toner is in a range of 0.800 to 0.970, and a content of the toner particles having a particle diameter of 2 μm or less is in a range of 5% by number to 30% by number.

Image forming method and image forming system

The present invention provides an image forming method for forming a decorated image having a resin layer and a powder contacted with each other, the method including: forming a resin layer on a recording medium; and supplying a powder onto the recording medium, in which, in viscoelasticity measurement of the resin layer, storage modulus G'(1) at 90&#xb0; C. is 1.0&#xd7;10Pa or more and 1.0&#xd7;10Pa or less upon carrying out the measurement from 30&#xb0; C. to 100&#xb0; C. under conditions of a frequency of 1 Hz and a temperature increasing rate of 3&#xb0; C./min.

Decorative image forming method

The electrostatic charge image developing toner of the present invention is an electrostatic charge image developing toner including a toner mother particle including at least a binding resin, and an external additive attached onto a surface of the toner mother particle, wherein a median size on a volume basis of the toner mother particle is in the range from 3.0 to 5.0 &#x3bc;m, the binding resin contains at least an amorphous polyester resin as a main component, and a spherical silica particle () having a number average particle size in the range from 20 to 55 nm is included as the external additive.

Electrostatic charge image developing toner and two-component developer

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Kanagawa, Japan

Kazumi Oura