Paper bag material mainly include: white cardboard, kraft paper, black cardboard, copper and special paper.
1, the advantages of white cardboard: solid, more durable, very good smoothness, printing out the color is rich and full, paper bags commonly used 210-300 grams of white cardboard, often used more is 230 grams of white cardboard.
2, copper paper material characteristics: whiteness and gloss are very good, printing can make pictures and images reflect the three-dimensional, but it is not as solid as white cardboard. Paper bags commonly used in the thickness of copper paper 128-300 grams.
3, Kraft paper's advantages: there is a high degree of toughness, not easy to tear, Kraft is generally suitable for printing some monochrome or color is not rich in two-color bag.
Commonly used size: 120-300 grams 4. The advantages of black cardboard: solid durability, color black, because the black cardboard itself is black, its biggest drawback is not to print color, but can be used to bronzing, hot silver and other processes.