Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonchromogenic liquid spread-control or...
Patent
1992-06-23
1996-05-28
Schwartz, Pamela R.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Having nonchromogenic liquid spread-control or...
106 21A, 106 21C, 106 21R, 503201, 503208, B41M 526
Patent
active
055211380
ABSTRACT:
A reversible thermosensitive coloring composition is composed of an electron-donor coloring compound; an electron-acceptor compound which is capable of producing a colored material with a regularly aggregated structure in the electron-doner coloring compound at a color development initiation temperature to obtain a color development state, and is capable of crystallizing out of the colored material at a decolorization initiation temperature which is lower than the color development initiation temperature; and an organic compound serving as a decolorization-accelerating agent capable of inducing the destruction of the regularly aggregated structure of the colored material to accelerate the decolorization of the composition. A reversible thermosensitive coloring recording medium is composed of a support and a recording layer formed thereon, which contains the above-mentioned reversible thermosensitive coloring composition.
REFERENCES:
patent: 4423116 (1993-12-01), Fox
patent: 4917948 (1990-04-01), Hotta
Goto Hiroshi
Kawamura Eiichi
Kubo Keishi
Maruyama Shoji
Shimada Masaru
Ricoh & Company, Ltd.
Schwartz Pamela R.
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