Near infrared ray-decolorizable recording material

A near infrared ray-decolorizable recording material comprising

• (i) a near infrared ray-absorbing cationic dye-borate anion complex having the formula (I):
• ##STR14## wherein D.sup.+ represents a cationic dyestuff having absorptions in the near infrared region;
• R.sub.1, R.sub.2, R.sub.3, and R.sub.4 independently represent an alkyl, aryl, alkaryl, allyl, aralkyl, alkenyl, alkynyl, silyl, alicyclic, or saturated or unsaturated heterocyclic group, substituted alkyl, substituted aryl, substituted alkaryl, substituted allyl, substituted aralkyl, substituted alkenyl, substituted alkynyl, or substituted silyl, with the proviso that at least one of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 represent an alkyl group having 1 to 8 carbon atoms, and
• (ii) a sensitizer having the formula (II):
• ##STR15## wherein R.sub.5, R.sub.6, R.sub.7, and R.sub.8 independently represent an alkyl, aryl, allyl, alkaryl, aralkyl, alkenyl, alkynyl, silyl, alicyclic, or saturated or unsaturated heterocyclic group, substituted alkyl, substituted aryl, substituted alkaryl, substituted allyl, substituted aralkyl, substituted alkenyl, substituted alkynyl, or substituted silyl, with the proviso that at least one of R.sub.5, R.sub.6, R.sub.7, and R.sub.8 represent an alkyl group having 1 to 8 carbon atoms;
• and R.sub.9, R.sub.10, R.sub.11, and R.sub.12 independently represent a hydrogen, an alkyl, aryl, alkaryl, allyl, aralkyl, alkenyl, alkynyl, or saturated or unsaturated heterocyclic group, substituted alkyl, substituted aryl, substituted alkaryl, substituted allyl, substituted aralkyl, substituted alkenyl, or substituted alkynyl.