Heat-sensitive record material

Details Heat-sensitive record material Heat-sensitive record material

1987-07-06

1988-09-13

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Having nonchromogenic liquid spread-control or...

427150, 427152, 428913, 503208, 503225, 503226, B41M 500

Patent

active

047710330

ABSTRACT:
A heat-sensitive record material having on a base sheet a recording layer which comprises a basic colorless chromogenic material and an acceptor in the state of that the colorless chromogenic material is contacted with the acceptor by heating to produce color images. The recording layer comprises at least one phenol compound represented by the following formula (I) together with the colorless chromogenic material and the acceptor, ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 radicals is hydrogen, C.sub.1-8 alkyl or C.sub.5-8 cycloalkyl, but at least one of R.sub.1, R.sub.2 and R.sub.3 radicals is C.sub.5-8 cycloalkyl; and each of R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 radicals is hydrogen or C.sub.1-8 alkyl.

REFERENCES:
patent: 4473831 (1984-09-01), Watanabe
patent: 4498091 (1985-02-01), Yamato et al.
patent: 4628335 (1986-12-01), Igarashi et al.
patent: 4630080 (1986-12-01), Satake

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