The difference between plastic bag printing and paper printing of fully degradable materials:
Various printing techniques produced different results. Depending on the layout, the quality of the ink, the quality of the ink scraps can allow us to print amazing things. So, let's first understand the difference between biodegradable plastic bag printing and paper printing in order to better understand the methods of printing and purchasing.
The basic concept of plastic bag printing is the same as paper printing.
1. The art decoration design, printing equipment and printing process of color printing manuscripts are basically the same.
2. The structure, printing method and basic principles of the printing equipment are the same. Multi - color gravure rotary press and multi - color flexo rotary press can print not only plastic bag film, but also web packaging paper.
3. The basic principle of color is the same as the application of printing.
The difference between plastic bag printing and paper printing
The printing layout is different.
One is plastic bag film, the other is paper, its physical and chemical properties are very different. The paper surface has a certain thickness, has the excellent adsorption state and the capillary action, the printing ink can be easily attached to the paper surface. Before printing, only need to put the paper in the room flat for a period of time, printing equipment installed on the electrostatic elimination device, electrostatic elimination device can be used for printing. Plastic bag film is not the same. For example, the polyethylene film and polypropylene film used for packaging have smooth surface, low surface tension, strong chemical stability and are not easy to be infiltrated by printing ink. In addition, the plastic bag itself also has antioxidant properties, which will affect the drying of the plastic bag after printing, affecting the combination of the ink layer and the film.
Inks cannot be used with each other.
Printing on paper and printing on plastic bags due to the different printing materials, printing ink drying methods and ink connection materials are also different. So you can't use the printing ink on the printing paper to print the plastic bag film. Can not dry the conjunctiva, prone to separation, deterioration and other failures, resulting in the full degradation of biological materials company unnecessary economic losses.