The production method of gilding process is to first make the required gilding or silver pattern into a convex plate, then heat it, and finally place the aluminum foil of the required color on the printing surface of the paper bag. After pressure, the aluminum foil is attached to the surface of the paper bag.
Paper bronzing paper materials will be divided into many kinds, color and a variety of gold.
02 printing technology of surface coating
The laminating process is the processing technology on the surface or inside of the paper bag after printing. The process is a paper product processing technology that uses the laminating machine to cover the surface of the paper bag with a layer of transparent plastic film.
The white card paper bag and coated paper in the paper bag must be coated on both sides, while the kraft paper bag does not. If it is to be waterproof, you can film inside the kraft paper bag.
Printing technology of 03 concave convex
Concave convex is to use the pressure of concave convex printing machine to roll the selected part or text pattern on the printed paper bag into concave convex, which has obvious three-dimensional effect.
04uv printing process
UV is shown to have a metallic surface gloss of the uneven translucent ink. It is a process of curing by external light.
In addition to these commonly used processes, there are also paper bag printing processes, including refraction, crosscut indentation, drop molding and so on.
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