Desensitizing ink for pressure sensitive copying sheets

Details Desensitizing ink for pressure sensitive copying sheets Desensitizing ink for pressure sensitive copying sheets

1982-02-12

1984-02-14

Kight, III, John

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 23, 282 275, 427150, 427151, 427152, 428411, 523400, C09D 1100

Patent

active

044314507

ABSTRACT:
A desensitizing ink for pressure sensitive copying sheets using at least a desensitizing agent, pigment and binder, wherein said desensitizing agent comprises at least propylene oxide addition compound selected from compounds of the following formulas: ##STR1## wherein a, b and c represent identical or different integers greater than 1; R is an alkyl group, an alkenyl group, an aryl group, substituted alkyl group, substituted alkenyl group or substituted aryl group; and n is an integer greater than 1. The desensitizing inks of the present invention exhibit sufficient desensitizing effect, excellent yellowing resistance and excellent printability, particularly in wet offset printing.

REFERENCES:
patent: 4101690 (1978-07-01), Miyamoto et al.
patent: 4291102 (1981-09-01), Tsukahara et al.

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