APPLICATION OF INFORMATION TO CLOTH

摘要

PURPOSE:To enable information to be read by ultraviolet rays which can not be recognized by visible rays by supplying cloth containing a fluorescent brightener before needlework with an water ink containing an ultraviolet ray absorbent by ink jet method. CONSTITUTION:A water ink containing an ultraviolet ray absorbent and, if necessary, a fluorescent brightener is supplied to cloth containing the fluorescent brightener before needlework by ink jet method to give the cloth necessary information. The water ink preferably contains polyalkylene glycol modified nylon salt/epsilon-caprolactam copolymer. The ultraviolet ray absorbent includes phenylsalicylate, p-tert-butylphenyl salicylate and the like. The information obtained by above-described process can not be discriminated by visible rays and can be read by ultraviolet rays.