Color-developing sheet for pressure-sensitive sheets

Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Heavy metal reactant

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Details

428342, 428914, 503211, 503212, 503216, 503217, 503225, B41M 522

Patent

active

048351342

ABSTRACT:
The color-developing sheet for pressure-sensitive recording sheets comprises a color-developing agent containing a phenolic polymer in combination with a polyvalent metal salt of carboxylated terpenephenol resin and/or a reaction product of carboxylated terpenephenol resin, aromatic carboxylic acid and polyvalent metal compound.
This color-developing sheet provides superior plasticizer resistance and less deterioration of a color-developing ability with the lapse of time.

REFERENCES:
patent: 4749680 (1988-06-01), Umeda et al.

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