Thermosensitive recording material

Details Thermosensitive recording material Thermosensitive recording material

1990-05-30

1992-05-26

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, 503208, 503216, B41M 530

Patent

active

051168049

ABSTRACT:
A thermosensitive recording material with a highly improved dynamic coloring sensitivity, comprising a support, and a coloring layer formed thereon, which comprises (a) a leuco dye, (b) at least one of 1,7-bis(4-hydroxphenylthio)-3,5-dioxahepetane and 1,5-bis(4-hydroxyphenylthio)-3-oxapentane as a color developer, and (c) a dibenzyl oxalate derivative having formula (I) as a sensitizer: ##STR1## wherein R.sup.1 and R.sup.2 each independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, a halogen or a hydroxyl group.

REFERENCES:
patent: 4925827 (1990-05-01), Goto et al.

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