1. Single powder paper: single powder paper is also called single-sided coated paper (single-glossy coated paper) paper is light on one side and dumb on one side, and only the glossy side can be printed; It can realize printing of various colors, and there is no limit to color; The commonly used surface treatment processes after printing are: glue, UV, hot stamping, embossing.

2. Double copper paper: Double copper paper refers to double-sided coated paper. Double-sided coated paper is a kind of coated paper, which is double-sided coating, and both sides have good smoothness. This material is relatively high-grade to use.

3. Pit paper: Pit paper is a smooth kraft paper and wavy paper (collectively known as paper core) mounted, which is one of the important materials of paper packaging. It is straighter and more load-bearing than ordinary paper. Commonly used are single pit, double pit, triple pit. It can realize printing in various colors, but the effect is not as good as that of single copper paper. Commonly used surface treatment processes after printing: glue, UV, hot stamping, embossing.

4. Special paper: Special paper is paper with special purpose and relatively small output. There are many kinds of special paper, here we only say that we use in packaging materials: embossed paper, pattern paper, "condensed" pearlescent pattern paper, "star" metal pattern paper, gold paper, etc. These papers have been specially treated, which can improve the texture of the packaging grade embossing can not be printed, can only surface hot stamping, star color, gold paper, etc. can be printed in 4 colors.

5. Used to make gift box structure, the surface is framed with a layer of single powder paper or special paper, and the commonly used colors are black, white, gray and yellow. The thickness of the cardboard is also available in various grades, which can be selected according to the load-bearing needs. If the framing is single powder, the process is consistent with the single powder carbox, if the framing is special paper, most of it can only be hot stamped, and some can achieve simple printing, but the printing effect is not good.