Heat sensitive recording material

Details Heat sensitive recording material Heat sensitive recording material

1995-07-12

1996-10-15

Hess, B. Hamilton

Record receiver having plural interactive leaves or a colorless

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

Identified organic electron acceptor other than phenolic resin

503216, 503218, 503221, B41M 530

Patent

active

055654029

ABSTRACT:
The present invention provides a heat sensitive recording material comprising a substrate and a recording layer thereon incorporating a colorless or light-colored basic dye and a color acceptor, the recording material being characterized in that, the basic dye comprises at least one black-forming fluoran derivative and at least one phenothiazine derivative such as 3,7-bis(dimethylaminophenyl)-10-benzoylphenothiazine in an amount of 5 to 100 wt. % based on the fluoran derivative, and the color acceptor comprises a diphenyl sulfone derivative such as 3,3'-diallyl-4,4'-dihydroxydiphenyl sulfone.

REFERENCES:
patent: 4612557 (1986-08-01), Hama et al.
patent: 5364732 (1994-11-01), Mouri et al.
patent: 5401699 (1995-03-01), Ohashi et al.

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