XANTHENE COMPOUND, COMPOSITION THEREOF, INK CONTAINING THE COMPOUND OR THE COMPOSITION, METHOD FOR PRINTING ON SUPPORTING BODY AND PRINTED PAPER OR OVERHEAD PROJECTOR SLIDE

摘要

PURPOSE: To prepare a new xanthend compd. excellent in water resistant fastness, light resistant fastness and brightness and useful for printing or the like. ;CONSTITUTION: The compd. of formula I [X¹ is sulpho or carboxy; X² is a substitutent; (m) is 0 to 2; Y¹ and Y² are each an alkyl or a halogen; Z is carboxy], is obtd. by condensing the compd. of formula II, the compd. of formula III (X³ is C=O or SO₂) and the compd of formula IV.;COPYRIGHT: (C)1993,JPO