Composition of fugitive Ink Solvent soluble or curable by UV Radiation, which comprises at least one halocromico compound and at least one filler Compound substrate comprising Said composition; composition; production method; method of Protecting a document; and use of com Position.

摘要

Disclosed is a fugitive ink composition for application to a substrate that is to be provided with indicia. The ink composition comprises at least one halochromic compound and is capable of preventing indicia formed with a heat sensitive erasable ink on an area of the substrate carrying the fugitive ink composition and thereafter subjected to a thermal treatment from becoming invisible to an unaided eye.