Popular Printing Types for Plastic Films

Solvent ink flexo printing is a traditional printing method with good quality. Due to the low surface tension of solvent inks, the film surface tension requirements are not as strict as other inks, so the ink layer is strong and the process is relatively simple. However, solvents affect environmental protection and are harmful to humans, which is a printing method that will soon be phased out soon.

2. Combination printing
Combined printing, also known as composite printing, is the most advanced printing method in the packaging printing industry in the world. According to different pattern designs, multiple methods are used to print on the same pattern to achieve the best visual effect.

3. UV ink embossing printing
UV ink embossing is a printing process with good printing quality and high efficiency, which is the most developed in China and most suitable for China's conditions. The printing is limited because the internal embossing equipment generally does not have a UV device, so equipment upgrades and transformations are necessary conditions for printing films.

4, UV ink flexo printing
Most manufacturers use water-based ink for printing. UV coating can reduce the cost and increase the printing effect. UV ink flexo printing is costly, but the requirements for film surface tension are relatively stringent.

5, UV ink silk screen printing
UV ink screen printing is a new process that can be a single sheet or roll printing, high cost and good quality. Single sheet printing does not need to be put on the shelf to dry, and roll printing can be performed at high speed.

6, Water-based flexo printing
The film surface tension must be above 40 dyne as the high strict process requirements, and there are strict requirements on the pH and viscosity of the ink. Water-based flexo printing is the most advanced printing method in the world today, with low cost, good quality, and no pollution. This process is vigorously developed in China, but it is slow to develop due to equipment limitations.

7, Solvent ink silk screen printing
Solvent ink screen printing is a traditional process. Generally, single sheets are printed by hand, and roll materials are printed by a combination machine.

8. Gravure printing
The quality of gravure printing is the best of all printing methods, and it is also the printing method commonly used by domestic soft pack factories.

9, Ordinary resin ink printing
Ordinary resin ink printing is the most commonly used method. There are two drying methods due to the drying problem: cut leaflets and put them on the shelf to dry. This method has a long drying time, a large volume, and is easy to be dirty and re-coated. Care should be taken to avoid lamination on the press when wrapping un-dried ink between films, which may cause lamination failure.