prov:value
| - An ink for marking pens according to claim 1, which comprises an orange dye represented by the formula (II) ##STR46## wherein R4 is --H, --CH3 or --Cl, R5 is --CH3 or --C2 H5, R6 is --H, --CH3, --C2 H5 or a phenyl group, R7 is --H, --CH3 or --C2 H5 or a phenyl group, R7 is --H, --CH3 or --C2 H5, and R8 is an alkyl group or a substituted alkyl group of C6 -C18, an ethanol-soluble resin, and ethanol
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