INK RIBBONS CONTAINING COMPOUNDS ABSORBING IN THE IR REGION

摘要

PCT No. PCT/EP94/00661 Sec. 371 Date Sep. 14, 1995 Sec. 102(e) Date Sep. 14, 1995 PCT Filed Mar. 5, 1994 PCT Pub. No. WO94/21471 PCT Pub. Date Sep. 29, 1994Ink ribbons containing one or more compounds from the group comprising phthalocyanines, the naphthalocyanines, the nickel dithiolene complexes, the methine dyes and the azulene quaternary-acid dyes, all of which have their absorption maximum in the region from 700 to 1,200 nm.