Heat sensitive recording material

Details Heat sensitive recording material Heat sensitive recording material

1993-04-02

1994-09-20

Hess, B. Hamilton

Record receiver having plural interactive leaves or a colorless

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

Having nonchromogenic liquid spread-control or...

503216, 503225, B41M 5035, B41M 538

Patent

active

053489306

ABSTRACT:
A heat sensitive recording material comprises a heat sensitive color forming layer containing a color former of a colorless or light color leuco dyestuff, a developer which develops color by reaction with the color former upon heating and is a mixture of 97 to 70 weight % of 2,4'-dihydroxydiphenylsulfone and 3 to 30 weight % of 4,4'-dihydroxydiphenylsulfone and a sensitizer. The heat sensitive color forming layer is coated on a support. The heat sensitive recording material has excellent color forming property by which sufficiently high concentration and sensitivity of the color forming are obtained and has excellent stability of the image with time.

REFERENCES:
patent: 4853362 (1989-08-01), Satake et al.
patent: 4868151 (1989-09-01), Satake et al.
Patent Abstracts of Japan, JP58205793, Nov. 1983.
Patent Abstracts of Japan, JP4103386, Jul. 1992.
Patent Abstracts of Japan, JP4214389, Mar. 1992.
Derwent Abstract 93/112522, Mar. 1993.
Derwent Abstract 93-162044, Mar. 1993.
Derwent Abstract 88-046314, Jan. 1988.
Derwent Abstract of JP 63-003991.

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