Desensitizable record material

Details Desensitizable record material Desensitizable record material

1992-09-10

1994-08-23

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430338, 430964, 503215, G03C 173

Patent

active

053406800

ABSTRACT:
A novel record material is disclosed comprising a substrate bearing microcapsules having nonmeltable walls. The microcapsules contain a chromogen or developer and a photosensitive composition internal thereof, said microcapsules undergoing a change in viscosity upon exposure to actinic radiation. The walls of the microcapsules have an elongation of not more than 1%, and the record material is resistant to heat, measured by not producing any substantial color when placed in a 150.degree. C. oven for one minute. Surprisingly, the record material however is capable of forming a color upon application to the record material of a point source energy input comprising a .DELTA.T of at least 115.degree. C. per one millisecond.

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Abstract of JP 56-016571, "Microcapsule Composition", Fuchigami et al. (Feb. 1981).

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