THERMAL RECORDING MATERIAL CONTAINING STILBENE DISULPHONIC ACID FLUORESCENT WHITENING AGENT

摘要

The present invention describes a coating composition comprising:
- polyvinyl alcohol; and
- a bis[triazinyl-amino]-stilbene disulphonic fluorescent whitening agent,
wherein the amount of dry mass of fluorescent whitening agent is 1.5 to 150 parts by mass relative to 100 parts by mass of dry polyvinyl alcohol. The coating composition can be used to prepare protective layers (overlayers) of thermal recording materials.