Heat-sensitive recording material

Details Heat-sensitive recording material Heat-sensitive recording material

1985-10-11

1988-11-08

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

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

Identified solvent or dispersant for color-former, other...

427150, 427151, 428341, 428342, 428913, 503215, B41M 518

Patent

active

047834390

ABSTRACT:
A heat-sensitive recording material is disclosed. The material comprises a support having provided on the same surface thereof microcapsules containing a basic colorless dye and an organic solvent, and a developer capable of reacting with the basic colorless dye to develop a color, the capsule walls of said microcapsules being impermeable to either of the basic colorless dye and the developer at room temperature but becoming permeable to the colorless dye and/or the developer upon application of heat. The organic solvent is a compound containing at least two benzene rings in the molecule thereof with a total number of at least one hetero atom selected from nitrogen, sulfur, oxygen and phosphorus atoms, if any, being less than 1/10 a total number of carbon atoms of the organic solvent. The material is excellent in preservability before and after recording and is excellent in heat-developability.

REFERENCES:
patent: 4236732 (1980-12-01), Murakami et al.
patent: 4529681 (1985-07-01), Usami et al.
patent: 4598035 (1986-07-01), Usami et al.

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