Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonchromogenic liquid spread-control or...
Patent
1994-04-29
1995-08-29
Hess, B. Hamilton
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Having nonchromogenic liquid spread-control or...
427150, 427151, 503208, 503216, 503223, B41M 530
Patent
active
054460115
ABSTRACT:
A thermosensitive recording material capable of being imagewise colored when heated, having a support, and a thermosensitive recording layer formed thereon which contains an N-substituted indole or an aromatic polyhydroxy compound, a carbonyl compound, and an acid material.
REFERENCES:
patent: 4257954 (1981-03-01), Schmidt et al.
patent: 5254522 (1993-10-01), Zink et al.
Hayakawa Kunio
Torii Masafumi
Hess B. Hamilton
Ricoh & Company, Ltd.
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