Developer-free heat-sensitive recording material

A heat-sensitive recording material comprising:

• a) a carrier substrate;
• and
• b) a fusible layer disposed on one side of the carrier substrate,
• wherein the fusible layer comprises:
• i) an amide wax having a melting point in a range from 60° C. to 180° C., wherein the amide wax is present in a total amount in a range from ≥40 to ≤78 percent by mass, based on a dry mass of the fusible layer;
• ii) an inorganic pigment, wherein the inorganic pigment is present in a total amount in a range of from ≥18 to ≤50 percent by mass, based on the dry mass of the fusible layer;
• and
• iii) one or more polymeric binder,
• wherein the fusible layer comprises less than 0.5% by weight of developers or leuco compounds based on a total weight of the fusible layer;
• wherein at least one of:
• the carrier substrate is colored and
• a colored interlayer is applied to the carrier substrate.