Dye solvents for pressure-sensitive copying systems

Details Dye solvents for pressure-sensitive copying systems Dye solvents for pressure-sensitive copying systems

1976-12-27

1978-06-06

Herbert, Jr., Thomas J.

Textiles: manufacturing

427145, 427150, 427151, 428307, 428325, 428327, 428511, 428914, B41M 522

Patent

active

040932788

ABSTRACT:
Solvents useful to dissolve dyes employed in pressure-sensitive copying systems comprise aryl esters of benzoic or substituted benzoic acid having the structure: ##STR1## wherein R.sub.1 is hydrogen, methyl or ethyl; R.sub.2 is hydrogen or C.sub.1 to C.sub.9 alkyl; R.sub.3 is hydrogen, methyl or ethyl; and n is zero or 1.

REFERENCES:
patent: 2646367 (1953-07-01), Davis et al.
patent: 3427180 (1969-02-01), Phillips
patent: 3684549 (1972-08-01), Shank
patent: 3968320 (1976-07-01), Herber et al.
patent: 4018728 (1977-04-01), Priest
patent: 4021059 (1977-05-01), Skelly et al.

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