Identification Of Both Sides Of Paper Or Paperboard
No matter what kinds of paper or Board has two sides, copying paper, wet paper-Web interface to the opposite side, the other side is positive. Negative due to contact with copper mesh, larger fines and loss of filler, screen printing, so negative is more coarse. Front close, positive and negative nature of significant differences. Its smoothness, high side than the other, picking speed greater negative than positive; white tails better than positive, paper and Board has two sides.
Both sides have great effect on print quality. In General, positive smoothness, sizing are better, so the printing performance. Production of cardboard boxes of facial tissue, must the paper facing out for printing and moisture treatment, which requires the identification of paper or Board and back.