Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1979-04-27
1981-03-03
Welsh, John D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430107, 430109, 430 98, 430114, 430138, 252316, 428403, G03G 908
Patent
active
042542014
ABSTRACT:
A pressure sensitive adhesive toner for use in electrostatic photography which consists essentially of porous aggregates. Each aggregate consists essentially of a cluster of a multiplicity of individual granules of pressure sensitive adhesive substance, each granule being encapsulated by a coating film of a film-forming material. Particles of an inorganic or organic pigment and/or a magnetic substance are contained within the aggregate in the interstices between the granules and deposited on the surfaces of the encapsulated granules. The toner aggregates are free from a tendency to cohere, cake and agglomerate to each other. The toner can be readily pressure fixed, using a low impression pressure, onto a surface bearing an electrostatic latent image without causing any contamination thereon, thereby forming a distinct visible image.
REFERENCES:
patent: 3326848 (1967-06-01), Clemens et al.
Akutsu Eiichi
Fujii Tadashi
Ikeda Itsuo
Sawai Yuji
Tsuiki deceased Harunobu
Ricoh & Company, Ltd.
Welsh John D.
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