A procedure for making a printed receptor sheet that has colored images, resistant to decoloration. (Machine-translation by Google Translate, not legally binding)

摘要

A method for manufacturing a printed receiving sheet having colored image areas, resistant to discoloration, said method comprising: (a) disposing an acid source sheet that includes an acid source material that releases a volatile acid by heating; (b) arranging a transparent, color-forming receiving sheet which includes a thin acid-reactive coating consisting essentially of one part by weight of dye-forming color precursor, chromogen, capable of absorbing protons, in solution in 15 a 45 parts, approximately, of neutral film-forming polymer based on monomers including about 75% to 95% vinyl chloride; (c) locating said acid source sheet in face-to-face contact with said receptor sheet and placing a differentially absorbent original of radiation in contact therewith; and (d) exposing said original to infrared radiation for a time sufficient to produce a printed receiving sheet with strongly colored image areas, resistant to discoloration. (Machine-translation by Google Translate, not legally binding)