Heat-sensitive recording material

Details Heat-sensitive recording material Heat-sensitive recording material

1986-01-23

1988-05-03

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, 42840221, 42840222, 503215, 503216, 503217, 503221, 503224, B41M 518

Patent

active

047420430

ABSTRACT:
A heat-sensitive recording material is disclosed, comprising a support and heat-sensitive recording layer on the support, said layer containing (1) microcapsules containing a basic dye precursor and an organic solvent as the core thereof and (2) a developer capable of forming color on reacting with the basic dye precursor, wherein said microcapsules are produced by the use of a wall-forming substance comprising xylylene diisocyanate or an adduct thereof such that the microcapsule walls are impermeable to both the basic dye precursor and developer at room temperature, but at a temperature of a thermal head during a recording process, become permeable to at least one of the basic dye precursor and developer, thereby permitting formation of a colored image as a result of the reaction between the basic dye precursor and the developer. This material can retain its excellent recording ability for a long period of time; that is, it possesses excellent storage stability, and moreover can produce a recorded image of high storage stability.

REFERENCES:
patent: 4439581 (1984-03-01), Irii et al.
patent: 4529681 (1985-07-01), Usami et al.
patent: 4598035 (1986-07-01), Usami et al.

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