Composition
AssigneeDatalase Ltd.
InventorsMartin Walker, Richard Cook
Life of this patent
Estimating the term…
Abstract
In the present invention, there is provided a use of 1,1,1-tris(4-hydroxyphenyl)ethane in a composition in the formation of an image on a substrate having said composition applied thereon, wherein the image is formed upon exposure of the composition to NIR or IR radiation, and wherein the image is capable of being retained on the substrate for at least 1 day under conditions of at least 50% relative humidity. The present invention is further directed towards compositions comprising 1,1,1-tris(4-hydroxyphenly)ethane, in addition to substrates, methods of forming an image and printing processes comprising said compositions.
Claims3
A process for manufacturing packaging from a printed substrate comprising printing a composition to a substrate to form a printed substrate, wherein the composition comprises a leuco dye and 1,1,1-tris(4-hydroxyphenyl) ethane, and subsequently forming the printed substrate into packaging during which the printed substrate, and thus the composition, is exposed to conditions of from 19.79 to 50 g/kg specific humidity, wherein the composition on the resulting packaging does not display colour.
Dependencies are inferred from the claim text.