What Is The Difference Between Plastic Printing And Paper Printing?

Different printing processes will lead to different effects. Depending on the printing plate, the quality of the ink, the quality of the ink scraper, and the prints that may surprise us may be printed. Then the following focuses on understanding the difference between plastic printing and paper printing, in order to better understand the printing, to understand how to buy.

First, the basic principles of plastic printing and paper printing are the same

1. The art decoration design, plate making equipment and plate making process of color manuscripts are basically the same.

2. The structure, imprinting mode and printing principle of the printing press are the same. Multi-color rotogravure rotary presses and multi-color flexographic rotary presses can be used both for printing plastic films and for printing roll wraps.

3, the principle of color and the application of printing are basically the same.

Second, the difference between plastic printing and paper printing

1, the printed substrate is different

One is a plastic film and the other is a paper, and their physical and chemical properties are very different. The paper surface has a certain degree of roughness, good adsorption state and capillary action, and the printing ink is easily attached on the paper surface. Before printing, the paper needs to be laid flat in the room for a period of time to dry paper, and a static eliminator is installed on the printing machine to eliminate static electricity and be used for printing. The plastic film is different. For example, the most used polyethylene and polypropylene films on the packaging have high surface finish, low surface tension, strong chemical stability, and difficulty in accepting ink infiltration. In addition, the plastic itself has anti-oxidant properties, and these will affect Drying after plastic printing affects the adhesion of the ink layer and the film.

2. Ink cannot be used interchangeably

Paper printing and plastic printing Due to the different characteristics of the printing materials, the printing ink drying method and the ink binder material are different. Therefore, printing ink cannot be used to print plastic films. Otherwise, it cannot be dried and congealed. It is prone to failures such as separation and quality change, resulting in unnecessary economic losses.