Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonreactant particles of defined size
Patent
1991-12-12
1993-02-23
Schwartz, Pamela R.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Having nonreactant particles of defined size
503200, 503226, B41M 540
Patent
active
051890070
ABSTRACT:
A thermosensitive recording material is composed of a support, a thermosensitive coloring layer capable of inducing color formation upon application of heat thereto, formed on the support, and a protective layer including a resin and a filler formed on the thermosensitive coloring layer, the filler containing aluminum hydroxide or/and aluminum oxide particles, having a volume mean diameter of 1 .mu.m or less, with the amount of the particles with a diameter of 4 .mu.m or less being 90 vol. % or more in the entire particles.
REFERENCES:
Japanese Patent Abstract 58-208091 Dec. 3, 1983.
Japanese Patent Abstract 62-59081 Mar. 14, 1987.
Aihara Hideo
Kurisu Norio
Takei Kazuhiro
Watanabe Yasuhiko
Ricoh & Company, Ltd.
Schwartz Pamela R.
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