夏季铜版纸正反两面色差问题及解决措施

Problems and Solutions of Art Paper's Sides Chromatism

在使用同一克重的铜版原纸和同一涂料配方的情况下,通过改变铜版纸正反两面的CMC、荧光增白剂、品蓝和紫蓝的使用剂量,同时改变正反两面的涂布量和干燥时间,可使铜版纸正反两面的色相达到一致,延缓铜版纸的返黄进度。

Using the same base paper and the same coating formulation,we can keep two sides of art paper to have consistent color,delay yellowing of art paper by changing dosage of CMC,OBA,Blue and Violet,coated weight and drying time.