Pressure-sensitive record material

Details Pressure-sensitive record material Pressure-sensitive record material

1974-11-08

1976-12-07

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

252316, 2603433R, 260335, 427145, 427150, 428323, 428327, 428537, B41M 512

Patent

active

039964051

ABSTRACT:
Record material comprising paper sheet material coated with liquid-containing microcapsules wherein the liquid contents comprise ethyldiphenylmethane. 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 encapsulated 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 reaction contact by rupture of the capsule walls that contain said liquid.

REFERENCES:
patent: 3491111 (1970-01-01), Lin
patent: 3627581 (1971-12-01), Phillips
patent: 3663256 (1972-05-01), Miller et al.
patent: 3672935 (1972-01-01), 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.
patent: 3836383 (1974-09-01), Kiritani et al.

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