Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonreactant particles of defined size
Patent
1989-10-05
1991-03-26
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Having nonreactant particles of defined size
106 21, 106 31, 503215, B41M 516, C09D 1100
Patent
active
050029240
ABSTRACT:
Microencapsulated load bearers to prevent the premature rupture of dye precursor-containing microcapsules are formed concurrently in the same microencapsulation process in which oil/dye precursor-containing microcapsules are formed by emulsifying an oily mixture, containing therein a dye-precursor solution and non-rupturable core particles, as droplets into an aqueous solution. The core particle and oil/dye precursor droplets are then microencapsulated to form a binary microcapsule mixture consisting of microencapsulated load bearers and oil/dye precursor-containing microcapsules, respectively. This binary microcapsule mixture in an appropriate solvent vehicle may be used as a coating for the preparation of carbonless copy paper.
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patent: 4411451 (1983-10-01), Matsushita et al.
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Hess Bruce H.
The Standard Register Company
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