01烫金
01 bronzing
烫金工艺的制作方式是先将所需烫金或者是烫银的图案制成凸型版后加热，在纸袋印刷面上放置所需要的颜色的铝箔纸，经过加压后，使铝箔附着于被纸袋表面上。
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.
纸质的烫金纸材料会分为很多种，颜色还有各种彩金多种多样。
Paper bronzing paper materials will be divided into many kinds, color and a variety of gold.
02表面覆膜的印刷工艺
02 printing technology of surface coating
覆膜的工艺是印刷之后的在纸袋的表面或者内侧的加工工艺，过程是用覆膜机在纸袋的表面上覆盖一层透明塑料薄膜的一种纸质品加工技术。
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.
纸袋中的白卡纸袋和铜版纸是必须要双面覆膜的，牛皮纸袋则不需要。如果是为了防水的话可以在牛皮纸袋内侧覆膜。
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.
3凹凸的印刷工艺Printing technology of 03 concave convex
凹凸是利用凹凸版印刷机的压力，把已经印刷好的纸袋上的选定的部位或者文字图案轧成凹凸明显的具有立体感的效果。
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.
样品实例
Sample example
04UV印刷工艺
04uv printing process
UV是表现出的是具有金属简面光泽的凹凸不平的半透明油墨。是通过外光固化的一种工艺。
UV is shown to have a metallic surface gloss of the uneven translucent ink. It is a process of curing by external light.
除了以上这些常用的工艺，还有纸袋印刷的工艺还包括折光、横切压痕、滴塑等等。
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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