What are the classifications of paper bag raw materials?

There are many kinds of materials for paper bags, mainly including: white cardboard, kraft paper, black cardboard, coated paper and special paper.
1. White cardboard
The advantages of white cardboard: solid, relatively durable, good smoothness, and the printed colors are rich and full.
210-300 grams of white cardboard is commonly used for paper bags, and 230 grams of white cardboard is often used.


2. Art paper
The material characteristics of coated paper: the whiteness and gloss are very good, and it can make pictures and pictures show a three-dimensional effect when printing, but its firmness is not as good as that of white cardboard.
The thickness of the copper paper commonly used in paper bags is 128-300 grams.


3. Kraft paper
Advantages of kraft paper: It has high toughness and firmness, and is not easy to tear. Kraft paper is generally suitable for printing some single-color or two-color paper bags that are not rich in color.
The commonly used size is: 120-300 grams


4. Black cardboard
Advantages of black cardboard: solid and durable, the color is black, because the black cardboard itself is black, its biggest disadvantage is that it cannot be printed in color, but it can be used for hot stamping, hot silver and other processes