Patent ID: 6071679
Filing Date: 2000-06-06
Classification: G03C

Abstract:
A color developing agent composition comprising:(a) a compound given by formula (I) ##STR218## wherein R.sub.2 through R.sub.6 are substituents respectively and independently are selected from the group consisting ofa hydrogen atom, an alkyl group, a hydroxyl group and an amino group, and substituted derivatives thereof, wherein the substituents are selected from the group consisting of a hydroxyl group and an amino group;(b) a paraphenylene diamine type color developing agent; and(c) a compound given by Formula (II) ##STR219## wherein R.sub.7 and R.sub.8 are substituents respectively and independently selected from the group consisting ofa hydrogen atom, an alkyl group and a substituted alkyl group;wherein said composition is acidic.