For swimwear a minimum grade of colorfastness to light 5 must be fulfilled.
对泳衣，耐光照色牢度不得低于5级。
Do you have laboratory in house to test bulk for meeting specs and colorfastness?
是否有内部实验室对大货进行规格及色牢度的测试？
If compared with traditionally dyed ribbons the high standards of the ribbons in regard of color, luster and colorfastness are met.
与传统染色方法相比，其带状织物的颜色、光泽和染色牢度能满足高标准。
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