Konica Minolta Business Technologies, Inc.

Konica Corporation

Konica-Minolta Holdings, Inc.

Takao Yamanouchi

Shingo Fujimoto

Shiro Hirano

Junya Onishi

Ryuichi Hiramoto

Michiyo Fujita

Hirofumi Koga

Kazue Nakamura

Ken Ohmura

Makoto Kobayashi

Asao Matsushima

Naohiro Hirose

Masafumi Uchida

Kazuya Isobe

Tomoe Kitani

Yoshiki Nishimori

Masaaki Kondo

Hiroyuki Yamada

Masahiro Anno

Meizo Shirose

Chikara Tsutsui

Tomomi Oshiba

Takeshi Arai

Shigenori Kouno

Ryuji Kitani

Michiaki Ishikawa

Tsuyoshi Uchida

Yasuko Yamauchi

Shigenori Kohno

A method of transferring a foil comprising: forming a foil transferring face on a photoreceptor employing a foil transferring face forming toner; transferring the foil transferring face onto a base substance, followed by fixing the foil transferring face; supplying a transfer foil having at least a foil and an adhesive layer on the base substance having the fixed foil transferring face, heating the transfer foil and the foil transferring face while the adhesive layer of the transfer foil is in contact with the foil transferring face to adhere the foil onto the foil transferring face; removing the transfer foil from the base substance while leaving the foil adhered onto the foil transferring face, wherein the foil transferring face forming toner comprises at least a binder resin, wherein the binder resin comprises a polymer formed by using a vinyl monomer comprising at least a carboxyl group.

Method of foil transfer employing foil transferring face forming toner and image forming method

An image forming method including a process for forming a transparent toner layer on an image formed on a support, the method including steps of supplying a transparent toner on an image on a support, and heating and then cooling the image on the support having the transparent toner while the image on the support having the transparent toner being in contact with a belt, wherein the transparent toner contains a resin constituted by a polyester and a styrene-acryl copolymer, a monoester compound represented by Formula I, and a hydrocarbon compound having at least one of a branched chain structure and a cyclic structure,R&#x2014;COO&#x2014;R&#x2003;&#x2003;Formula I:

Image forming method

Provided is a method for forming an image containing the steps of: supplying a clear toner on a surface of an image forming support; heating the supplied clear toner on the surface of the image forming support to melt; close contacting the surface of the image forming support supplied with the clear toner with a belt; and cooling the clear toner in a state of close contacting with the belt so as to form a clear toner layer on the image forming support, wherein the aforesaid clear toner contains at least a resin formed with a polymerizable monomer represented by Formula (1) and a vinyl monomer, Formula (1): H&#x2550;CR&#x2014;COOR, wherein Rrepresents a hydrogen atom or a methyl group; and Rrepresents a chain alkyl group having 12 to 22 carbon atoms, or a cyclic alkyl group.

Disclosed is an image formation method in which clear dots comprised of clear toner are formed on an image with a 75&#xb0; glossiness of from 10 to 60, the image formation method comprising the steps of forming a clear toner image on the image, employing clear toner, and fixing the clear toner image by non-contact heat fixation to form clear dots in the form of protrusions, wherein the clear dots have an average height H and an average circle equivalent diameter R, a ratio H/R of the average height H to the average circle equivalent diameter R satisfying the following inequality:0.005&#x2266;&#x2266;10.

Image formation method

Disclosed is an electrophotographic image forming method which comprises steps of forming a toner image on an image support, fixing the toner image on the image support in a fixing nip section of a fixing device employing a contact heating system and the toner contains a first releasing agent, a dynamic viscosity of the first releasing agent is 4-20 mm/sec; and a fixing temperature in the fixing nip section of the fixing device is 75-100&#xb0; C. higher than a melting point of the first releasing agent.

A method of forming an image comprising: (a) developing an electrostatic latent image formed on an electrophotographic photoreceptor with an electrophotographic toner so as to obtain a toner image; (b) transferring the toner image on the electrophotographic photoreceptor to a recording paper; and (c) fixing the transferred toner image with a fixing device comprising a belt fixing member having an endless belt, wherein the electrophotographic toner comprises a polymer having a glass transition point of 20 to 40&#xb0; C.; an interfacial adhesion force (Fr) between the electrophotographic toner and poly(tetrafluoroethylene) is 1 to 3.5 N; and the fixing device comprises a heating roller which is provided at a position apart from a fixing nip area.

Image forming method using electrophotographic system

An electrophotographic toner is disclosed, meeting the requirement that a ratio of a storage modulus at 60&#xb0; C. [G'(60)] to a storage modulus at 80&#xb0; C. [G&#x2032;(80)], G&#x2032;(60)/G&#x2032;(80) is from 1&#xd7;10to 1&#xd7;10; a ratio of a storage modulus at 100&#xb0; C. [G&#x2032;(100)] to a storage modulus at 120&#xb0; C. [G&#x2032;(120)], G&#x2032;(100)/G&#x2032;(120) is from 1 to 10; and a storage modulus at a temperature of from 140 to 160&#xb0; C., [G&#x2032;(140-160)] is not less than 10dyn/cm.

Electrophotographic toner and electrophotographic developer by use thereof

An electrophotographic toner is disclosed, comprising a binding resin, a colorant and a releasing agent, wherein the releasing agent comprises a first releasing agent component of a monoester compound represented by formula (1) and a second releasing agent component composed of a hydrocarbon compound having a branched chain structure, and the first releasing agent component accounting for 40% to 98% by mass of the total amount of the first and second releasing agent components:R&#x2014;COO&#x2014;R&#x2003;&#x2003;(1)wherein Rand Rare each independently a hydrocarbon group having 13 to 30 carbon atoms.

Electrophotographic toner

In an image forming method in which a toner image, which is visualized via an electrostatic latent image formed on an electrophotographic photoreceptor, employing a developer incorporating toner, is transferred onto a recording material followed by fixing, and any residual toner remaining on the electrophotographic photoreceptor is removed, an image forming method in which an electrophotographic photoreceptor and a toner which satisfy specified requirements are employed and image formation is carried out while feeding a surface energy lowering agent from the developer onto the aforesaid electrophotographic photoreceptor, and an image forming apparatus employing the same.

Electrophotographic image forming method and image forming apparatus

Disclosed is a toner having a core/shell structure and including a hydrophilic resin and a hydrophobic resin, and a manufacturing method thereof.

Manufacturing method of electrostatic charge image developing toner, and electrostatic charge image developing toner

A toner used for an image forming method comprises steps of: limiting an amount of toner on a surface of a toner carrier by allowing a toner layer limiting member to be pressed to the surface of the toner carrier; and developing an electrostatic latent image formed on an electrostatic latent image carrier using the toner carried and transferred by the toner carrier, based on a non-magnetic single component development system, wherein the toner comprises toner particles having a volume average particle diameter of 3 to 9 &#x3bc;m, an arithmetic mean value of shape factor of 1.1 to 1.5, a coefficient of variation of shape factor of 16% or less, a ratio of rounded toner particle of 50% by number or more and a coefficient of variation of number particle diameter distribution of 26% or less, and a conveyance index of 2.0 to 10.0.

Toner and image forming method

An electrostatic photographic image forming toner is disclosed. The toner comprises a toner particle containing a binder resin and a colorant in which the binder resin has a specific softening point of from 105 to 132&#xb0; C. and the toner particle has a hardness of from 6.0 to 24.0 mN and a circularity of from 0.92 to 0.99.

Toner particle having a hardnes of 6.0 to 24.0 mN and a circularity of 0.92 to 0.99

A toner for forming an electrophotographic image is disclosed. The toner particle contains at least two inorganic salts including an inorganic salt comprising a positive ion having a first valence and an inorganic salt comprising a positive ion having a second valence different from the first valence, a total amount of the inorganic salt having the first valence is greatest among the inorganic salts in the toner particle, and a total amount of the inorganic salt having the second valence is second greatest among the inorganic salts in the toner particle.

Electrostatic latent image developing toner and production method thereof

An electrostatic image developing toner comprising a resin and a colorant is disclosed. The resin comprises a polymerization component of a polymerizable monomer having a polar group in an amount of 1.0 to 10.0 percent by weight, and a polymerization component of a polyfunctional polymerizable monomer in an amount of 0.1 to 10.0 percent by weight; ratio (A/B) is from 0.5 to 20.0 percent; and either a peak or a shoulder is positioned in the molecular weight region of 5,000 to 20,000, wherein A is an area of a chromatograph curve in the molecular weight region of 60,000 to 1,000,000, based on GCP measurement of a THF soluble component of toner and B is an entire area of the chromatograph curve.

Electrostatic image developing toner and preparation method thereof

A method of preparing toner for developing an electrostatic image is disclosed. The method comprises process for adhering by fusing resin particles onto surface of colored particles (core particles) containing a resin particle and a colorant by salting-out/fusion-adhering to form the resin layer (shell).

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Kanagawa, Japan

Takao Yamanouchi