Heat-sensitive recording material with a substrate comprising a

Details Heat-sensitive recording material with a substrate comprising a Heat-sensitive recording material with a substrate comprising a

1990-03-19

1991-09-10

Schwartz, Pamela R.

Record receiver having plural interactive leaves or a colorless

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

427152, 503226, B41M 540

Patent

active

050473832

ABSTRACT:
An improved heat-sensitive recording material of the type having a substrate and a heat-sensitive recording layer formed on said substrate, said heat-sensitive recording layer containing a color former and a color developer to color said color former upon contact by heating, characterized in that said substrate comprises an adiabatic foamed polyester resin film containing minutes cavities with an apparent specific gravity in the range of 0.9 to 1.2.

REFERENCES:
patent: 4980337 (1990-12-01), Kawasaki et al.

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