What are the types of customized paper bags?

What are the types of customized paper bags?
White cardboard paper bags, white board paper bags, bond paper bags, kraft paper bags, and a small amount are made of special paper.
White cardboard: The white cardboard is firm and thick, has high stiffness, burst resistance and smoothness, and the paper surface is flat. The commonly used thickness is 210-300 grams of white cardboard, and 230 white cardboard is most used. The paper bags printed on white cardboard are full of color and the texture of the paper is very good.
Coated paper: The characteristic of coated paper is that the paper surface is very smooth and flat, with high whiteness, high smoothness and good degree. It also makes the printed graphics and pictures have a three-dimensional effect. The commonly used thickness is 128g-300g. Coated paper printing The effect is the same as white cardboard, the color is full and bright, compared with white cardboard, the stiffness is not as good as white cardboard.
White kraft paper: White kraft paper has high bursting resistance, good toughness, high strength, uniform thickness and color image. It is made of pure wood pulp, environmentally friendly, non-toxic, environmentally friendly and recyclable. White kraft paper has good toughness and does not need to be coated. It is widely used Used in the production of environmentally friendly clothing handbags, shopping bags, etc. Commonly used white kraft paper with a thickness of 120 to 200 grams, the paper has no brightness and degree of brightness, white kraft paper is not suitable for printing content with too much ink.
Kraft paper: also known as natural kraft paper. It has high tensile strength, high toughness, usually brown, high tear strength, rupture and dynamic strength, and is widely used in shopping bags, envelopes, etc. Commonly used natural kraft paper with a thickness of 120 g-300 g. Kraft paper is generally suitable for printing single-color or two-color and uncomplicated color manuscripts.
Gray-bottomed whiteboard paper: Whiteboard paper is a kind of cardboard with white and smooth front side and gray-bottomed backside. The commonly used thickness is 250g-350g. The whiteboard paper is white on one side and gray on the other side. The price is relatively cheaper than that of white cardboard. a little.
Special paper: The paper is delicate, firm and thick, with good folding endurance, pattern and pearl on the surface, good stiffness, good tensile force, and high burst resistance. The commonly used thickness is 120g-350g. Because it is dyed, it is not possible to print colorful patterns,
It is only suitable for hot stamping, hot silvering and other processes. The bags made are also very beautiful.