Patent ID: 6013430
Filing Date: 2000-01-11
Classification: B41M,G03C,Y10S

Abstract:
A thermal recording element comprising a support having thereon a recording layer comprising a J-aggregate cyanine dye dispersed in a hydrophilic binder, said J-aggregate dye having the formula: ##STR9## wherein R.sup.2, R.sup.3, R.sup.8 and R.sup.9 each independently represents hydrogen, a substituted or unsubstituted alkyl or alkoxy group having from about 1 to about 6 carbon atoms; halogen; a substituted or unsubstituted aryl group having from about 6 to about 10 atoms; or a substituted or unsubstituted heteroaryl group having from about 5 to about 10 atoms;any two adjacent substituents on the aryl rings may be taken together to form a 6-membered aromatic ring;R.sup.5 and R.sup.6 each independently represents a substituted or unsubstituted alkyl group having from about 1 to about 6 carbon atoms or sulfoalkyl;Z represents an inorganic or organic cation; andR.sup.11 is an alkyl group having from 2 to about 6 carbon atoms.