Compared with our commonly used plastic bags,paper bags are more environmentally friendly.Therefore,nowadays people generally begin to use paper bags.What are the materials of paper bags?
1.Advantages of kraft paper:high toughness,firmness,not easy to tear,kraft paper is generally suitable for printing some monochrome or color is not rich in two-color paper bags.
2.The advantages of white cardboard:solid,durable,good smoothness,rich and full color printing,paper bag commonly used 210-300 grams of white cardboard,often used 230 grams of white cardboard.
3.Advantages of black card paper:solid and durable,the color is black,because the black card paper itself is black,its biggest disadvantage is that it can not print color,but can be used for bronzing,silver and other processes.
4.Copper paper material characteristics:whiteness and gloss are very good,printing can make pictures and pictures reflect the three-dimensional sense,but its firmness is not as good as white cardboard.The thickness of copper paper commonly used in paper bags is 128-300g.Commonly used size is:120-300g
To sum up,the main materials of paper bags are kraft paper,white cardboard,black cardboard and copperboard.