Thermal recording sheet

Details Thermal recording sheet Thermal recording sheet

1993-02-25

1994-06-21

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...

503208, 503216, 503225, B41M 530

Patent

active

053228316

ABSTRACT:
A thermal recording sheet having a thermal color developing layer containing a color developer and a colorless or pale colored basic chromogenic dye, which further contains a stabilizer of Formula (I) and a sensitizer of Formula (II) or Formula (III), thereby obtaining a high sensitivity and improved image stability: ##STR1## wherein A indicates ##STR2## R.sup.1 and R.sup.2 individually indicate hydrogen or methyl; .alpha. is 0 or an integer from 1 to 5; .beta. and .gamma. individually indicate an integer from 1 to 5; B indicates ##STR3## C and D individually indicate chlorine, bromine, methyl, methoxy, or ethoxy; and m and n individually indicate 0, 1, or 2; ##STR4##

REFERENCES:
patent: 4539578 (1985-09-01), Igarashi et al.
patent: 4644375 (1987-02-01), Satake et al.
patent: 4742042 (1988-05-01), Hiraishi et al.

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