Except small part of pre print corrugated boxs, most currugated boxs are post printed. While due to the influence of corrugated, such post print won't be so precise at high screen ruling.The advantage of post print is the large format. It's popular to reach 3x2m and even larger.To print directly on the laminated corrugated board will save cost compared to litho.
With the developing of machinery and plate making technology, the corrugated printing isgoing forward more colors with higher screen ruling. Many high end export products already apply 6 colors at 80-100lpi printing.
The popular plate thickness for corrugated is 2.84/3.94mm. We can make plates up to 1320x2032mm with screen ruling at 120lpi.
