Heat-sensitive recording material

Details Heat-sensitive recording material Heat-sensitive recording material

2005-12-13

2009-12-22

Hess, Bruce H (Department: 1794)

Record receiver having plural interactive leaves or a colorless

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

Having nonreactant particles of defined size

C503S200000, C503S226000

Reexamination Certificate

active

07635661

ABSTRACT:
A heat-sensitive recording material has a support, and a heat-sensitive recording layer including at least a leuco dye, a developer and a binder. The heat-sensitive recording layer contains secondary particles with an average particle diameter of 30 to 900 nm formed by aggregation of primary particles of amorphous silica with a particle diameter of at least 3 nm and less than 30 nm, and optionally a basic pigment. A protective layer may be formed on the heat-sensitive recording layer.

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