The results show that the saturated color density is improved by addition of antioxidant, and the reflection optical density reached 1.
结果表明：抗氧剂的使用可提高热敏层的饱和光密度，使涂层的反射光密度达到1。
The results show that the saturated color density is improved by addition of antioxidant, and the reflection optical density reached 1.
结果表明：抗氧剂的使用可提高热敏层的饱和光密度，使涂层的反射光密度达到1。
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