Sealing sideband lightfastness chroma.
封边带耐光色度。
The color fastnesses of these dyes were 4-5, and three of these dyes had high lightfastness of 6-7.
所有染料的色牢度均在4 ~ 5之间，有三个品种的耐光牢度达到了6 ~ 7级。
Fadeometer: An instrument used for determing the lightfastness of inks and other material under predetermined controlled conditions.
褪色计：用来计算油墨或其他物料在预定的控制环境下的耐光度的仪器。
Fadeometer: An instrument used for determing the lightfastness of inks and other material under predetermined controlled conditions.
褪色计：用来计算油墨或其他物料在预定的控制环境下的耐光度的仪器。
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