| 摘要 |
The thermal paper for keeping good heat and humidity resistances even long term storage uses the thermal sensitive material composed of the die dispersing solution, thermo sensitive solution, and auxiliary agent. The die dispersing solution is composed of the 10-20 wt.% of leuco die, 10-30 wt.% of polyvinyl alcohol, and 30-60 wt.% of water. The thermo sensitive solution is composed of 10-30 wt.% of bisphenol A as the colouring agent, 10-30 wt.% of para benzyl biphenyl and 5-20 wt.% of methylolamide as the sensitizer, 10-40 wt.% of zinc stearate, 10-30 wt.% of CaCO3, 10-30 wt.% of CaSiO2, 100-300 wt.% of polyvinyl alcohol (10% solution), and 300-500 wt.% of water. The weight ratio of the die dispersing and thermo sensitive solutions is 75:200.
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