The photo-thermal sensitive microcapsule is synthesized with interfacial polymerization method,which is a new type of optical information recording and displaying function material.Effects of photoabsorption properties and concentration of photoinitiator on the polymerization and imaging density of photo-thermal microcapsule are investigated by infrared spectroscopy technology and thermal imaging technology.Results show that initiating efficiency of photoinitiator is different because of absorbability diffe...