Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1999-04-13
2000-01-18
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430111, 430124, G03G 9097, G03G 1322
Patent
active
060156473
ABSTRACT:
A toner for developing an electrostatic image is composed of toner particles containing at least a binder resin, a colorant and a wax composition. The wax composition comprises an ester wax (1) having a long-chain alkyl group, and a wax (2). The wax (2) shows a maximum heat-absorption peak in a range of 40-130.degree. C. on temperature increase on a DSC (differential scanning calorimeter) curve, and gives a .sup.13 C-NMR (nuclear magnetic resonance) spectrum showing a total peak area S in a range of 0-50 ppm, a total peak area S1 in a range of 36-42 ppm, and a total peak area S2 in a range of 10-17 ppm, satisfying: 1.0.ltoreq.(S1/S).times.100.ltoreq.10, 1.5.ltoreq.(S2/S).times.100.ltoreq.15, and S.sub.1 <S.sub.2. The toner particles contain A wt. parts of the ester wax (1), B wt. parts of the wax (2) and C wt. parts of the colorant, respectively per 100 wt. parts of the binder resin, satisfying: 3.ltoreq.A.ltoreq.30, 0.2.ltoreq.B.ltoreq.10, 4.ltoreq.A+B.ltoreq.40, 0.02.ltoreq.B/A.ltoreq.0.5, and 0.02.ltoreq.B/C.ltoreq.2.
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Ohno Manabu
Ugai Toshiyuki
Canon Kabushiki Kaisha
Martin Roland
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