Rewritable thermal recording medium and recording method

Details Rewritable thermal recording medium and recording method Rewritable thermal recording medium and recording method

1998-02-09

2000-01-04

McPherson, John A.

Radiation imagery chemistry: process, composition, or product th

Erasable imaging

430138, 430964, 503201, 503204, 503226, B41M 534

Patent

active

060108088

ABSTRACT:
A rewritable thermal recording medium of this invention uses a recording material which reversibly changes between an equilibrium state and a quasi-equilibrium state different in color condition from the equilibrium state when a predetermined heat treatment is performed. This rewritable thermal recording medium includes a substrate and a recording layer formed on the substrate. The recording layer has a first region containing a first recording material which takes on lighter color in quasi-equilibrium than in equilibrium, and a second region containing a second recording material which takes on darker color in quasi-equilibrium than in equilibrium.

REFERENCES:
patent: 5869420 (1999-02-01), Naito
Y. Hino et al.; "Rewritable Leuco-Thermal Recording Medium", Japan Hardcopy '90, pp. 147-150.
K. Tsutsui et al.; "Mechanism of New Reversible Thermo-Sensitive Imaging Media Using Organic Long-Chain Compounds", Polymer Preprints, Japan vol. 42, No. 7 (1993) pp. 2736-2738.
Y. Yokota et al.: "Rewritable Thermal Recording Material", Japan Hardcopy '93, pp. 413-416.

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