Chromogen solutions for pressure-sensitive mark-recording system

Details Chromogen solutions for pressure-sensitive mark-recording system Chromogen solutions for pressure-sensitive mark-recording system

1980-08-18

1982-08-10

Hess, Bruce H.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

8582, 8583, 252316, 282 275, 427151, 4283204, 4283206, 4283208, 428537, B41M 516, B41M 522, C09D 1100

Patent

active

043436528

ABSTRACT:
Pressure-sensitive mark-recording systems of chromogens comprised of diphenylmethane derivatives in solution with selected diester solvents is disclosed as well as pressure-sensitive mark-recording systems comprised of (a) sheet material, (b) mark-forming components supported by the sheet material and arranged in juxtaposition but in unreactive condition, a chromogen, and an acid clay sensitizer for the chromogen, and (c) the solvent supported by the sheet material but separated from the sensitizing agent by a physical barrier which is rupturable on the application of a marking instrument to the sheet material.

REFERENCES:
patent: 3836383 (1974-09-01), Kiritani et al.
patent: 3846331 (1974-11-01), Konish et al.
patent: 3979327 (1976-09-01), Herber
patent: 4070303 (1978-01-01), Ohkubo et al.
patent: 4093278 (1978-06-01), Sears
patent: 4191403 (1980-03-01), Dessauer et al.

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