Dongguan Beite packaging materials Co., Ltd. focuses on the flexible packaging industry, the following is to share some experience of color difference in the printing process.
1 ink factor
First of all: each time added to the ink tray less ink, in order to maintain
Always add new ink.
Secondly: the viscosity of the ink should be consistent from beginning to end
Good is to use viscosity controller to control.
Finally: mixed color separation, organic and inorganic pigments in light ink
It is easy to cause the fault.
2 scraper
The position, angle and pressure of the scraper contacting the plate have an effect on the ink color of the printed matter,
Especially the ink in the shallow layer has a great influence.
3. Production process control
The printing speed should be kept constant during the production. Ink 1
Must be fully stirred, ink circulation unobstructed. Control the printing plate not to blow
To irregular airflow.