Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1996-06-21
1997-07-22
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430110, 430126, 430120, 430111, G03G 1322
Patent
active
056502540
ABSTRACT:
A image formation process comprising the steps of forming an electrostatic latent image on an electrostatic latent image carrier, developing the electrostatic latent image with a developer to provide a toner image, transferring the toner image to a transfer material, and heat-fixing the toner image on the transfer material, wherein the developer comprises a toner for developing electrostatic latent images comprising a binder, a colorant, and 1 to 30% by weight of a lubricant which comprises a modified polyethylene wax which is obtained by homopolymerizing ethylene or copolymerizing ethylene and an .alpha.-olefin having 3 to 10 carbon atoms in the presence of a metallocene catalyst and modifying the resulting ethylene homo- or copolymer by grafting at least one grafting monomer selected from the group consisting of a styrene monomer and an unsaturated carboxylic acid monomer, and has a hexane extraction of not more than 65% by weight, and wherein the transfer step comprises bringing a bias roll into contact with the back side of a transfer material. The image formation process of the present invention requires less power consumption. The toner for use in the present invention provides a good releasability at low temperatures and shows excellent anti-offset properties and powder fluidity without causing the generation of ozone, image defects and blocking.
REFERENCES:
patent: 4810612 (1989-03-01), Ueda et al.
patent: 5298354 (1994-03-01), Matsunaga et al.
patent: 5362592 (1994-11-01), Murofushi et al.
patent: 5389487 (1995-02-01), Kawakami et al.
patent: 5466555 (1995-11-01), Taguchi et al.
Aoki Takayoshi
Eguchi Atsuhiko
Iida Yoshifumi
Ishida Haruhide
Ohishi Kaori
Fuji Xerox Co. Ltd
Martin Roland
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