水印
通过将黄铜线的图案固定在圆形的画布上获得水印。
该位置的纸浆量很小,图案在透明状态下就会显现出来。这是明水印。暗水印是通过在金属帆布上压印浮雕图案而获得的,在造纸的第一阶段就将纸浆固定在其上。图案通常是名称、会标、日期、绘图或首字母缩写。它们的作用是验证纸张的来源。
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