Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonreactant particles of defined size
Patent
1986-04-23
1988-02-02
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Having nonreactant particles of defined size
427150, 427151, 428323, 428327, 428328, 428329, 428330, 428331, 503215, B41M 518
Patent
active
047229217
ABSTRACT:
A heat-sensitive recording material is disclosed, comprising a support having provided thereon a heat-sensitive recording layer containing microcapsules containing a color former and an organic solvent as core materials and a color developer exterior thereto, the wall of said microcapsules being impermeable to both of the color former and the color developer at room temperature but becoming permeable to at least one of the color former and color developer upon the application of heat, wherein the heat-sensitive recording layer further contains a pigment having an average particle size greater than that of the microcapsules. The material exhibits improved handling and running properties.
REFERENCES:
patent: 4418942 (1983-12-01), Hosoi et al.
patent: 4422670 (1983-12-01), Hasegawa et al.
patent: 4529681 (1985-07-01), Usami et al.
Hayashi Takayuki
Kiritani Masataka
Tanaka Toshiharu
Usami Toshimasa
Fuji Photo Film Co. , Ltd.
Hess Bruce H.
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