Photocopying – Using microcapsules
Patent
1996-10-03
1999-07-13
Beatty, Robert
Photocopying
Using microcapsules
355406, 430138, G03B 2700
Patent
active
059234121
ABSTRACT:
An encapsulated liquid toner apparatus and method for printing. The encapsulated liquid toner apparatus and method for printing operates by selectively depositing ink filled microcapsules to a print medium. The microcapsules have a mixture of pigment particles, drying agents, and an ester oil contained within a hard brittle outer shell. The outer shell formed from a urea resoricnol formaldehyde material is crushed which releases ink within the microcapsule onto the print medium. One embodiment of the invention deposits the microcapsules on the print medium through an electrophotographic process. Another embodiment deposits the microcapsules through a toner ejection process.
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Arthur S. Diamond, "Handbook of Imaging Materials", TR196.H36 199, pp. 565-567.
Beatty Robert
Hewlett--Packard Company
Short Brian R.
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