A model of screen reaction force for the 3D additive screen printing

The paper presents a numerical model of screen reaction force in the 3D additive screen printing. The 3D additive screen printing is a multilayer high-precision stereoscopic printing mainly used in high-end sports shoes and clothes field. It needs repeatedly overprinting dozens of times to make the additional ink thickness achieve more than 0.8 mm, differing from the ordinary screen printing. Extremely accurate control of printing force is required. This paper firstly analyses that the different screen reaction force when squeegee is at different position leads to the inhomogeneous printing force in the 3D additive screen printing. Then the numerical model of the screen reaction force was developed and an experiment was carried out. The results show that the absolute error is less than 1.5 N meeting with the process requirements and verify the validity of the model. Finally, the model was applied to the printing production, effectively improving the printing quality.