| abstract |
An aqueous jet printing ink composition which fluoresces under ultra violet radiation containing a water soluble fluorescent dye dissolved in the water base in an amount up to 2% by weight and a water soluble binder component dissolved in the water base in an amount to provide for a specific viscosity which does not exceed 20 centipoises and which preferably includes a fluorescent brightener alone or in combination with fluorescein or one of its salts. |