Pressure-sensitive record material

Details Pressure-sensitive record material Pressure-sensitive record material

1975-04-28

1977-05-31

Pianalto, Bernard D.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

428323, B41m 500

Patent

active

040270653

ABSTRACT:
Record material is disclosed comprising paper sheet material coated with droplets of liquid wherein the liquid comprises 2,2,4-trimethyl-1,3-pentanediol diisobutyrate. Said liquid is associated on the record material with at least two color-producing reactants, at least one of which is soluble in said liquid. The liquid is associated with the reactants by either being in close proximity to both reactants or by having one of the reactants dissolved therein and being in close proximity to the other. Of the color-producing reactants, one is a chromogenic dye-precursor and one is a coreactant material capable of developing the color of the chromogenic dye-precursor when the two reactants are brought into reactive contact.

REFERENCES:
patent: 3627581 (1971-12-01), Phillips
patent: 3663256 (1972-05-01), Brockett et al.
patent: 3672935 (1972-06-01), Miller et al.
patent: 3681390 (1972-08-01), Lin
patent: 3723156 (1973-03-01), Brockett et al.
patent: 3732120 (1973-05-01), Brockett et al.

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